sata_mv.c revision c01e8a23128c746f23088db836bd4c820f3eb0b4
120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ/* 220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ * sata_mv.c - Marvell SATA support 320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ * 4e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord * Copyright 2008: Marvell Corporation, all rights reserved. 58b260248d9e0e8b64bb72fd4dee03ad86984c344Jeff Garzik * Copyright 2005: EMC Corporation, all rights reserved. 6e2b1be56c5656902744c2b52e8304126a40bb609Jeff Garzik * Copyright 2005 Red Hat, Inc. All rights reserved. 720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ * 820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ * Please ALWAYS copy linux-ide@vger.kernel.org on emails. 920f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ * 1020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ * This program is free software; you can redistribute it and/or modify 1120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ * it under the terms of the GNU General Public License as published by 1220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ * the Free Software Foundation; version 2 of the License. 1320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ * 1420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ * This program is distributed in the hope that it will be useful, 1520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ * but WITHOUT ANY WARRANTY; without even the implied warranty of 1620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ * GNU General Public License for more details. 1820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ * 1920f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ * You should have received a copy of the GNU General Public License 2020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ * along with this program; if not, write to the Free Software 2120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 2220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ * 2320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ */ 2420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 254a05e2091709dbb22b86a1b3343cd3fa3c0d7a6bJeff Garzik/* 2685afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * sata_mv TODO list: 2785afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * 2885afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * --> Errata workaround for NCQ device errors. 2985afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * 3085afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * --> More errata workarounds for PCI-X. 3185afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * 3285afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * --> Complete a full errata audit for all chipsets to identify others. 3385afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * 3485afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * --> Develop a low-power-consumption strategy, and implement it. 3585afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * 3685afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * --> [Experiment, low priority] Investigate interrupt coalescing. 3785afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * Quite often, especially with PCI Message Signalled Interrupts (MSI), 3885afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * the overhead reduced by interrupt mitigation is quite often not 3985afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * worth the latency cost. 4085afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * 4185afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * --> [Experiment, Marvell value added] Is it possible to use target 4285afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * mode to cross-connect two Linux boxes with Marvell cards? If so, 4385afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * creating LibATA target mode support would be very interesting. 4485afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * 4585afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * Target mode, for those without docs, is the ability to directly 4685afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord * connect two SATA ports. 4785afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord */ 484a05e2091709dbb22b86a1b3343cd3fa3c0d7a6bJeff Garzik 4920f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ#include <linux/kernel.h> 5020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ#include <linux/module.h> 5120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ#include <linux/pci.h> 5220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ#include <linux/init.h> 5320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ#include <linux/blkdev.h> 5420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ#include <linux/delay.h> 5520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ#include <linux/interrupt.h> 568d8b60046d6a2328ca4b9031b4948084f775f607Andrew Morton#include <linux/dmapool.h> 5720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ#include <linux/dma-mapping.h> 58a9524a76f70f3343e4be27f95a7e92a8ba5f9009Jeff Garzik#include <linux/device.h> 59f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara#include <linux/platform_device.h> 60f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara#include <linux/ata_platform.h> 6115a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek#include <linux/mbus.h> 62c46938ccfe35a58a0873715ee4c26fc9eb8d87b3Mark Lord#include <linux/bitops.h> 6320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ#include <scsi/scsi_host.h> 64193515d51ccb363165d6b09e9ba5c21089e34badJeff Garzik#include <scsi/scsi_cmnd.h> 656c08772e49622e90d39903e7ff0be1a0f463ac86Jeff Garzik#include <scsi/scsi_device.h> 6620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ#include <linux/libata.h> 6720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 6820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ#define DRV_NAME "sata_mv" 69da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord#define DRV_VERSION "1.26" 7020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 7120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russenum { 7220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ /* BAR's are enumerated in terms of pci_resource_start() terms */ 7320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ MV_PRIMARY_BAR = 0, /* offset 0x10: memory space */ 7420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ MV_IO_BAR = 2, /* offset 0x18: IO space */ 7520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ MV_MISC_BAR = 3, /* offset 0x1c: FLASH, NVRAM, SRAM */ 7620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 7720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ MV_MAJOR_REG_AREA_SZ = 0x10000, /* 64KB */ 7820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ MV_MINOR_REG_AREA_SZ = 0x2000, /* 8KB */ 7920f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 8020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ MV_PCI_REG_BASE = 0, 8120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ MV_IRQ_COAL_REG_BASE = 0x18000, /* 6xxx part only */ 82615ab95342f6245026d8974b9724f7ea57d9a184Mark Lord MV_IRQ_COAL_CAUSE = (MV_IRQ_COAL_REG_BASE + 0x08), 83615ab95342f6245026d8974b9724f7ea57d9a184Mark Lord MV_IRQ_COAL_CAUSE_LO = (MV_IRQ_COAL_REG_BASE + 0x88), 84615ab95342f6245026d8974b9724f7ea57d9a184Mark Lord MV_IRQ_COAL_CAUSE_HI = (MV_IRQ_COAL_REG_BASE + 0x8c), 85615ab95342f6245026d8974b9724f7ea57d9a184Mark Lord MV_IRQ_COAL_THRESHOLD = (MV_IRQ_COAL_REG_BASE + 0xcc), 86615ab95342f6245026d8974b9724f7ea57d9a184Mark Lord MV_IRQ_COAL_TIME_THRESHOLD = (MV_IRQ_COAL_REG_BASE + 0xd0), 87615ab95342f6245026d8974b9724f7ea57d9a184Mark Lord 8820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ MV_SATAHC0_REG_BASE = 0x20000, 898e7decdb8b132ee970a2636931b7653dec6af472Mark Lord MV_FLASH_CTL_OFS = 0x1046c, 908e7decdb8b132ee970a2636931b7653dec6af472Mark Lord MV_GPIO_PORT_CTL_OFS = 0x104f0, 918e7decdb8b132ee970a2636931b7653dec6af472Mark Lord MV_RESET_CFG_OFS = 0x180d8, 9220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 9320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ MV_PCI_REG_SZ = MV_MAJOR_REG_AREA_SZ, 9420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ MV_SATAHC_REG_SZ = MV_MAJOR_REG_AREA_SZ, 9520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ MV_SATAHC_ARBTR_REG_SZ = MV_MINOR_REG_AREA_SZ, /* arbiter */ 9620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ MV_PORT_REG_SZ = MV_MINOR_REG_AREA_SZ, 9720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 9831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ MV_MAX_Q_DEPTH = 32, 9931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ MV_MAX_Q_DEPTH_MASK = MV_MAX_Q_DEPTH - 1, 10031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 10131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ /* CRQB needs alignment on a 1KB boundary. Size == 1KB 10231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ * CRPB needs alignment on a 256B boundary. Size == 256B 10331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ * ePRD (SG) entries need alignment on a 16B boundary. Size == 16B 10431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ */ 10531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ MV_CRQB_Q_SZ = (32 * MV_MAX_Q_DEPTH), 10631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ MV_CRPB_Q_SZ = (8 * MV_MAX_Q_DEPTH), 107da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord MV_MAX_SG_CT = 256, 10831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ MV_SG_TBL_SZ = (16 * MV_MAX_SG_CT), 10931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 110352fab701ca4753dd005b67ce5e512be944eb591Mark Lord /* Determine hc from 0-7 port: hc = port >> MV_PORT_HC_SHIFT */ 11120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ MV_PORT_HC_SHIFT = 2, 112352fab701ca4753dd005b67ce5e512be944eb591Mark Lord MV_PORTS_PER_HC = (1 << MV_PORT_HC_SHIFT), /* 4 */ 113352fab701ca4753dd005b67ce5e512be944eb591Mark Lord /* Determine hc port from 0-7 port: hardport = port & MV_PORT_MASK */ 114352fab701ca4753dd005b67ce5e512be944eb591Mark Lord MV_PORT_MASK = (MV_PORTS_PER_HC - 1), /* 3 */ 11520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 11620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ /* Host Flags */ 11720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ MV_FLAG_DUAL_HC = (1 << 30), /* two SATA Host Controllers */ 11820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ MV_FLAG_IRQ_COALESCE = (1 << 29), /* IRQ coalescing capability */ 1197bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara 120c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik MV_COMMON_FLAGS = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | 12191b1a84c10869e2e46a576e5367de3166bff8eccMark Lord ATA_FLAG_MMIO | ATA_FLAG_PIO_POLLING, 122ad3aef51e17b9c6a90a9014805f1645e8e441c17Mark Lord 12391b1a84c10869e2e46a576e5367de3166bff8eccMark Lord MV_GEN_I_FLAGS = MV_COMMON_FLAGS | ATA_FLAG_NO_ATAPI, 12420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 12591b1a84c10869e2e46a576e5367de3166bff8eccMark Lord MV_GEN_II_FLAGS = MV_COMMON_FLAGS | MV_FLAG_IRQ_COALESCE | 126ad3aef51e17b9c6a90a9014805f1645e8e441c17Mark Lord ATA_FLAG_PMP | ATA_FLAG_ACPI_SATA | 127da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord ATA_FLAG_NCQ, 12891b1a84c10869e2e46a576e5367de3166bff8eccMark Lord 12991b1a84c10869e2e46a576e5367de3166bff8eccMark Lord MV_GEN_IIE_FLAGS = MV_GEN_II_FLAGS | ATA_FLAG_AN, 130ad3aef51e17b9c6a90a9014805f1645e8e441c17Mark Lord 13131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ CRQB_FLAG_READ = (1 << 0), 13231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ CRQB_TAG_SHIFT = 1, 133c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik CRQB_IOID_SHIFT = 6, /* CRQB Gen-II/IIE IO Id shift */ 134e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord CRQB_PMP_SHIFT = 12, /* CRQB Gen-II/IIE PMP shift */ 135c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik CRQB_HOSTQ_SHIFT = 17, /* CRQB Gen-II/IIE HostQueTag shift */ 13631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ CRQB_CMD_ADDR_SHIFT = 8, 13731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ CRQB_CMD_CS = (0x2 << 11), 13831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ CRQB_CMD_LAST = (1 << 15), 13931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 14031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ CRPB_FLAG_STATUS_SHIFT = 8, 141c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik CRPB_IOID_SHIFT_6 = 5, /* CRPB Gen-II IO Id shift */ 142c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik CRPB_IOID_SHIFT_7 = 7, /* CRPB Gen-IIE IO Id shift */ 14331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 14431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ EPRD_FLAG_END_OF_TBL = (1 << 31), 14531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 14620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ /* PCI interface registers */ 14720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 14831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ PCI_COMMAND_OFS = 0xc00, 1498e7decdb8b132ee970a2636931b7653dec6af472Mark Lord PCI_COMMAND_MRDTRIG = (1 << 7), /* PCI Master Read Trigger */ 15031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 15120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ PCI_MAIN_CMD_STS_OFS = 0xd30, 15220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ STOP_PCI_MASTER = (1 << 2), 15320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ PCI_MASTER_EMPTY = (1 << 3), 15420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ GLOB_SFT_RST = (1 << 4), 15520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 1568e7decdb8b132ee970a2636931b7653dec6af472Mark Lord MV_PCI_MODE_OFS = 0xd00, 1578e7decdb8b132ee970a2636931b7653dec6af472Mark Lord MV_PCI_MODE_MASK = 0x30, 1588e7decdb8b132ee970a2636931b7653dec6af472Mark Lord 159522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik MV_PCI_EXP_ROM_BAR_CTL = 0xd2c, 160522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik MV_PCI_DISC_TIMER = 0xd04, 161522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik MV_PCI_MSI_TRIGGER = 0xc38, 162522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik MV_PCI_SERR_MASK = 0xc28, 1638e7decdb8b132ee970a2636931b7653dec6af472Mark Lord MV_PCI_XBAR_TMOUT_OFS = 0x1d04, 164522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik MV_PCI_ERR_LOW_ADDRESS = 0x1d40, 165522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik MV_PCI_ERR_HIGH_ADDRESS = 0x1d44, 166522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik MV_PCI_ERR_ATTRIBUTE = 0x1d48, 167522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik MV_PCI_ERR_COMMAND = 0x1d50, 168522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik 16902a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord PCI_IRQ_CAUSE_OFS = 0x1d58, 17002a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord PCI_IRQ_MASK_OFS = 0x1d5c, 17120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ PCI_UNMASK_ALL_IRQS = 0x7fffff, /* bits 22-0 */ 17220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 17302a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord PCIE_IRQ_CAUSE_OFS = 0x1900, 17402a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord PCIE_IRQ_MASK_OFS = 0x1910, 175646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord PCIE_UNMASK_ALL_IRQS = 0x40a, /* assorted bits */ 17602a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord 1777368f91926a2870a8c3f9546d86535ce71ae0757Mark Lord /* Host Controller Main Interrupt Cause/Mask registers (1 per-chip) */ 1787368f91926a2870a8c3f9546d86535ce71ae0757Mark Lord PCI_HC_MAIN_IRQ_CAUSE_OFS = 0x1d60, 1797368f91926a2870a8c3f9546d86535ce71ae0757Mark Lord PCI_HC_MAIN_IRQ_MASK_OFS = 0x1d64, 1807368f91926a2870a8c3f9546d86535ce71ae0757Mark Lord SOC_HC_MAIN_IRQ_CAUSE_OFS = 0x20020, 1817368f91926a2870a8c3f9546d86535ce71ae0757Mark Lord SOC_HC_MAIN_IRQ_MASK_OFS = 0x20024, 182352fab701ca4753dd005b67ce5e512be944eb591Mark Lord ERR_IRQ = (1 << 0), /* shift by port # */ 183352fab701ca4753dd005b67ce5e512be944eb591Mark Lord DONE_IRQ = (1 << 1), /* shift by port # */ 18420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ HC0_IRQ_PEND = 0x1ff, /* bits 0-8 = HC0's ports */ 18520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ HC_SHIFT = 9, /* bits 9-17 = HC1's ports */ 18620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ PCI_ERR = (1 << 18), 18720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ TRAN_LO_DONE = (1 << 19), /* 6xxx: IRQ coalescing */ 18820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ TRAN_HI_DONE = (1 << 20), /* 6xxx: IRQ coalescing */ 189fb621e2fde735abab854586d52c96c5624bcb5b8Jeff Garzik PORTS_0_3_COAL_DONE = (1 << 8), 190fb621e2fde735abab854586d52c96c5624bcb5b8Jeff Garzik PORTS_4_7_COAL_DONE = (1 << 17), 19120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ PORTS_0_7_COAL_DONE = (1 << 21), /* 6xxx: IRQ coalescing */ 19220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ GPIO_INT = (1 << 22), 19320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ SELF_INT = (1 << 23), 19420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ TWSI_INT = (1 << 24), 19520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ HC_MAIN_RSVD = (0x7f << 25), /* bits 31-25 */ 196fb621e2fde735abab854586d52c96c5624bcb5b8Jeff Garzik HC_MAIN_RSVD_5 = (0x1fff << 19), /* bits 31-19 */ 197e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord HC_MAIN_RSVD_SOC = (0x3fffffb << 6), /* bits 31-9, 7-6 */ 19820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 19920f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ /* SATAHC registers */ 20020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ HC_CFG_OFS = 0, 20120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 20220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ HC_IRQ_CAUSE_OFS = 0x14, 203352fab701ca4753dd005b67ce5e512be944eb591Mark Lord DMA_IRQ = (1 << 0), /* shift by port # */ 204352fab701ca4753dd005b67ce5e512be944eb591Mark Lord HC_COAL_IRQ = (1 << 4), /* IRQ coalescing */ 20520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ DEV_IRQ = (1 << 8), /* shift by port # */ 20620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 20720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ /* Shadow block registers */ 20831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ SHD_BLK_OFS = 0x100, 20931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ SHD_CTL_AST_OFS = 0x20, /* ofs from SHD_BLK_OFS */ 21020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 21120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ /* SATA registers */ 21220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ SATA_STATUS_OFS = 0x300, /* ctrl, err regs follow status */ 21320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ SATA_ACTIVE_OFS = 0x350, 2140c58912e192fc3a4835d772aafa40b72552b819fMark Lord SATA_FIS_IRQ_CAUSE_OFS = 0x364, 215c443c5002b24ff5d2f4efcc25a861f0cb835130aMark Lord SATA_FIS_IRQ_AN = (1 << 9), /* async notification */ 21617c5aab5b34e351531466e35b154ca86db7d46a9Mark Lord 217e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord LTMODE_OFS = 0x30c, 21817c5aab5b34e351531466e35b154ca86db7d46a9Mark Lord LTMODE_BIT8 = (1 << 8), /* unknown, but necessary */ 21917c5aab5b34e351531466e35b154ca86db7d46a9Mark Lord 22047c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik PHY_MODE3 = 0x310, 221bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik PHY_MODE4 = 0x314, 222ba069e376cc0801cd28352ca5986ce20413acb21Mark Lord PHY_MODE4_CFG_MASK = 0x00000003, /* phy internal config field */ 223ba069e376cc0801cd28352ca5986ce20413acb21Mark Lord PHY_MODE4_CFG_VALUE = 0x00000001, /* phy internal config field */ 224ba069e376cc0801cd28352ca5986ce20413acb21Mark Lord PHY_MODE4_RSVD_ZEROS = 0x5de3fffa, /* Gen2e always write zeros */ 225ba069e376cc0801cd28352ca5986ce20413acb21Mark Lord PHY_MODE4_RSVD_ONES = 0x00000005, /* Gen2e always write ones */ 226ba069e376cc0801cd28352ca5986ce20413acb21Mark Lord 227bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik PHY_MODE2 = 0x330, 228e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord SATA_IFCTL_OFS = 0x344, 2298e7decdb8b132ee970a2636931b7653dec6af472Mark Lord SATA_TESTCTL_OFS = 0x348, 230e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord SATA_IFSTAT_OFS = 0x34c, 231e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord VENDOR_UNIQUE_FIS_OFS = 0x35c, 23217c5aab5b34e351531466e35b154ca86db7d46a9Mark Lord 2338e7decdb8b132ee970a2636931b7653dec6af472Mark Lord FISCFG_OFS = 0x360, 2348e7decdb8b132ee970a2636931b7653dec6af472Mark Lord FISCFG_WAIT_DEV_ERR = (1 << 8), /* wait for host on DevErr */ 2358e7decdb8b132ee970a2636931b7653dec6af472Mark Lord FISCFG_SINGLE_SYNC = (1 << 16), /* SYNC on DMA activation */ 23617c5aab5b34e351531466e35b154ca86db7d46a9Mark Lord 237c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik MV5_PHY_MODE = 0x74, 2388e7decdb8b132ee970a2636931b7653dec6af472Mark Lord MV5_LTMODE_OFS = 0x30, 2398e7decdb8b132ee970a2636931b7653dec6af472Mark Lord MV5_PHY_CTL_OFS = 0x0C, 2408e7decdb8b132ee970a2636931b7653dec6af472Mark Lord SATA_INTERFACE_CFG_OFS = 0x050, 241bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik 242bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik MV_M2_PREAMP_MASK = 0x7e0, 24320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 24420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ /* Port registers */ 24520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ EDMA_CFG_OFS = 0, 2460c58912e192fc3a4835d772aafa40b72552b819fMark Lord EDMA_CFG_Q_DEPTH = 0x1f, /* max device queue depth */ 2470c58912e192fc3a4835d772aafa40b72552b819fMark Lord EDMA_CFG_NCQ = (1 << 5), /* for R/W FPDMA queued */ 2480c58912e192fc3a4835d772aafa40b72552b819fMark Lord EDMA_CFG_NCQ_GO_ON_ERR = (1 << 14), /* continue on error */ 2490c58912e192fc3a4835d772aafa40b72552b819fMark Lord EDMA_CFG_RD_BRST_EXT = (1 << 11), /* read burst 512B */ 2500c58912e192fc3a4835d772aafa40b72552b819fMark Lord EDMA_CFG_WR_BUFF_LEN = (1 << 13), /* write buffer 512B */ 251e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord EDMA_CFG_EDMA_FBS = (1 << 16), /* EDMA FIS-Based Switching */ 252e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord EDMA_CFG_FBS = (1 << 26), /* FIS-Based Switching */ 25320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 25420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ EDMA_ERR_IRQ_CAUSE_OFS = 0x8, 25520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ EDMA_ERR_IRQ_MASK_OFS = 0xc, 2566c1153e00af8de755ec278d873a97c9ce2a72d10Jeff Garzik EDMA_ERR_D_PAR = (1 << 0), /* UDMA data parity err */ 2576c1153e00af8de755ec278d873a97c9ce2a72d10Jeff Garzik EDMA_ERR_PRD_PAR = (1 << 1), /* UDMA PRD parity err */ 2586c1153e00af8de755ec278d873a97c9ce2a72d10Jeff Garzik EDMA_ERR_DEV = (1 << 2), /* device error */ 2596c1153e00af8de755ec278d873a97c9ce2a72d10Jeff Garzik EDMA_ERR_DEV_DCON = (1 << 3), /* device disconnect */ 2606c1153e00af8de755ec278d873a97c9ce2a72d10Jeff Garzik EDMA_ERR_DEV_CON = (1 << 4), /* device connected */ 2616c1153e00af8de755ec278d873a97c9ce2a72d10Jeff Garzik EDMA_ERR_SERR = (1 << 5), /* SError bits [WBDST] raised */ 262c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik EDMA_ERR_SELF_DIS = (1 << 7), /* Gen II/IIE self-disable */ 263c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik EDMA_ERR_SELF_DIS_5 = (1 << 8), /* Gen I self-disable */ 2646c1153e00af8de755ec278d873a97c9ce2a72d10Jeff Garzik EDMA_ERR_BIST_ASYNC = (1 << 8), /* BIST FIS or Async Notify */ 265c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik EDMA_ERR_TRANS_IRQ_7 = (1 << 8), /* Gen IIE transprt layer irq */ 2666c1153e00af8de755ec278d873a97c9ce2a72d10Jeff Garzik EDMA_ERR_CRQB_PAR = (1 << 9), /* CRQB parity error */ 2676c1153e00af8de755ec278d873a97c9ce2a72d10Jeff Garzik EDMA_ERR_CRPB_PAR = (1 << 10), /* CRPB parity error */ 2686c1153e00af8de755ec278d873a97c9ce2a72d10Jeff Garzik EDMA_ERR_INTRL_PAR = (1 << 11), /* internal parity error */ 2696c1153e00af8de755ec278d873a97c9ce2a72d10Jeff Garzik EDMA_ERR_IORDY = (1 << 12), /* IORdy timeout */ 270646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord 2716c1153e00af8de755ec278d873a97c9ce2a72d10Jeff Garzik EDMA_ERR_LNK_CTRL_RX = (0xf << 13), /* link ctrl rx error */ 272646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord EDMA_ERR_LNK_CTRL_RX_0 = (1 << 13), /* transient: CRC err */ 273646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord EDMA_ERR_LNK_CTRL_RX_1 = (1 << 14), /* transient: FIFO err */ 274646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord EDMA_ERR_LNK_CTRL_RX_2 = (1 << 15), /* fatal: caught SYNC */ 275646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord EDMA_ERR_LNK_CTRL_RX_3 = (1 << 16), /* transient: FIS rx err */ 276646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord 2776c1153e00af8de755ec278d873a97c9ce2a72d10Jeff Garzik EDMA_ERR_LNK_DATA_RX = (0xf << 17), /* link data rx error */ 278646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord 2796c1153e00af8de755ec278d873a97c9ce2a72d10Jeff Garzik EDMA_ERR_LNK_CTRL_TX = (0x1f << 21), /* link ctrl tx error */ 280646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord EDMA_ERR_LNK_CTRL_TX_0 = (1 << 21), /* transient: CRC err */ 281646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord EDMA_ERR_LNK_CTRL_TX_1 = (1 << 22), /* transient: FIFO err */ 282646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord EDMA_ERR_LNK_CTRL_TX_2 = (1 << 23), /* transient: caught SYNC */ 283646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord EDMA_ERR_LNK_CTRL_TX_3 = (1 << 24), /* transient: caught DMAT */ 284646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord EDMA_ERR_LNK_CTRL_TX_4 = (1 << 25), /* transient: FIS collision */ 285646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord 2866c1153e00af8de755ec278d873a97c9ce2a72d10Jeff Garzik EDMA_ERR_LNK_DATA_TX = (0x1f << 26), /* link data tx error */ 287646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord 2886c1153e00af8de755ec278d873a97c9ce2a72d10Jeff Garzik EDMA_ERR_TRANS_PROTO = (1 << 31), /* transport protocol error */ 289c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik EDMA_ERR_OVERRUN_5 = (1 << 5), 290c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik EDMA_ERR_UNDERRUN_5 = (1 << 6), 291646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord 292646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord EDMA_ERR_IRQ_TRANSIENT = EDMA_ERR_LNK_CTRL_RX_0 | 293646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord EDMA_ERR_LNK_CTRL_RX_1 | 294646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord EDMA_ERR_LNK_CTRL_RX_3 | 29585afb934575abdff1b2ac8ea4d522d1355f22a89Mark Lord EDMA_ERR_LNK_CTRL_TX, 296646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord 297bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_EH_FREEZE = EDMA_ERR_D_PAR | 298bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_PRD_PAR | 299bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_DEV_DCON | 300bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_DEV_CON | 301bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_SERR | 302bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_SELF_DIS | 3036c1153e00af8de755ec278d873a97c9ce2a72d10Jeff Garzik EDMA_ERR_CRQB_PAR | 304bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_CRPB_PAR | 305bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_INTRL_PAR | 306bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_IORDY | 307bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_LNK_CTRL_RX_2 | 308bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_LNK_DATA_RX | 309bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_LNK_DATA_TX | 310bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_TRANS_PROTO, 311e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord 312bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_EH_FREEZE_5 = EDMA_ERR_D_PAR | 313bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_PRD_PAR | 314bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_DEV_DCON | 315bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_DEV_CON | 316bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_OVERRUN_5 | 317bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_UNDERRUN_5 | 318bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_SELF_DIS_5 | 3196c1153e00af8de755ec278d873a97c9ce2a72d10Jeff Garzik EDMA_ERR_CRQB_PAR | 320bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_CRPB_PAR | 321bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_INTRL_PAR | 322bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_IORDY, 32320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 32431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ EDMA_REQ_Q_BASE_HI_OFS = 0x10, 32531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ EDMA_REQ_Q_IN_PTR_OFS = 0x14, /* also contains BASE_LO */ 32631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 32731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ EDMA_REQ_Q_OUT_PTR_OFS = 0x18, 32831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ EDMA_REQ_Q_PTR_SHIFT = 5, 32931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 33031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ EDMA_RSP_Q_BASE_HI_OFS = 0x1c, 33131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ EDMA_RSP_Q_IN_PTR_OFS = 0x20, 33231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ EDMA_RSP_Q_OUT_PTR_OFS = 0x24, /* also contains BASE_LO */ 33331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ EDMA_RSP_Q_PTR_SHIFT = 3, 33431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 3350ea9e179f436f153fc19fdaef7abbc1e0da20762Jeff Garzik EDMA_CMD_OFS = 0x28, /* EDMA command register */ 3360ea9e179f436f153fc19fdaef7abbc1e0da20762Jeff Garzik EDMA_EN = (1 << 0), /* enable EDMA */ 3370ea9e179f436f153fc19fdaef7abbc1e0da20762Jeff Garzik EDMA_DS = (1 << 1), /* disable EDMA; self-negated */ 3388e7decdb8b132ee970a2636931b7653dec6af472Mark Lord EDMA_RESET = (1 << 2), /* reset eng/trans/link/phy */ 3398e7decdb8b132ee970a2636931b7653dec6af472Mark Lord 3408e7decdb8b132ee970a2636931b7653dec6af472Mark Lord EDMA_STATUS_OFS = 0x30, /* EDMA engine status */ 3418e7decdb8b132ee970a2636931b7653dec6af472Mark Lord EDMA_STATUS_CACHE_EMPTY = (1 << 6), /* GenIIe command cache empty */ 3428e7decdb8b132ee970a2636931b7653dec6af472Mark Lord EDMA_STATUS_IDLE = (1 << 7), /* GenIIe EDMA enabled/idle */ 34320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 3448e7decdb8b132ee970a2636931b7653dec6af472Mark Lord EDMA_IORDY_TMOUT_OFS = 0x34, 3458e7decdb8b132ee970a2636931b7653dec6af472Mark Lord EDMA_ARB_CFG_OFS = 0x38, 3468e7decdb8b132ee970a2636931b7653dec6af472Mark Lord 3478e7decdb8b132ee970a2636931b7653dec6af472Mark Lord EDMA_HALTCOND_OFS = 0x60, /* GenIIe halt conditions */ 348c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord EDMA_UNKNOWN_RSVD_OFS = 0x6C, /* GenIIe unknown/reserved */ 349da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord 350da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord BMDMA_CMD_OFS = 0x224, /* bmdma command register */ 351da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord BMDMA_STATUS_OFS = 0x228, /* bmdma status register */ 352da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord BMDMA_PRD_LOW_OFS = 0x22c, /* bmdma PRD addr 31:0 */ 353da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord BMDMA_PRD_HIGH_OFS = 0x230, /* bmdma PRD addr 63:32 */ 354da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord 35531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ /* Host private flags (hp_flags) */ 35631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ MV_HP_FLAG_MSI = (1 << 0), 35747c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik MV_HP_ERRATA_50XXB0 = (1 << 1), 35847c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik MV_HP_ERRATA_50XXB2 = (1 << 2), 35947c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik MV_HP_ERRATA_60X1B2 = (1 << 3), 36047c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik MV_HP_ERRATA_60X1C0 = (1 << 4), 3610ea9e179f436f153fc19fdaef7abbc1e0da20762Jeff Garzik MV_HP_GEN_I = (1 << 6), /* Generation I: 50xx */ 3620ea9e179f436f153fc19fdaef7abbc1e0da20762Jeff Garzik MV_HP_GEN_II = (1 << 7), /* Generation II: 60xx */ 3630ea9e179f436f153fc19fdaef7abbc1e0da20762Jeff Garzik MV_HP_GEN_IIE = (1 << 8), /* Generation IIE: 6042/7042 */ 36402a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord MV_HP_PCIE = (1 << 9), /* PCIe bus/regs: 7042 */ 365616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord MV_HP_CUT_THROUGH = (1 << 10), /* can use EDMA cut-through */ 3661f39847255a02c69190ae30c33b8ccf4c10840dfMark Lord MV_HP_FLAG_SOC = (1 << 11), /* SystemOnChip, no PCI */ 36720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 36831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ /* Port private flags (pp_flags) */ 3690ea9e179f436f153fc19fdaef7abbc1e0da20762Jeff Garzik MV_PP_FLAG_EDMA_EN = (1 << 0), /* is EDMA engine enabled? */ 370721091685f853ba4e6c49f26f989db0b1a811250Mark Lord MV_PP_FLAG_NCQ_EN = (1 << 1), /* is EDMA set up for NCQ? */ 37100f42eabb204c68fa64ef72de834e74aca15c81fMark Lord MV_PP_FLAG_FBS_EN = (1 << 2), /* is EDMA set up for FBS? */ 37229d187bb1e30682e228ce461c487d78d945c3e4fMark Lord MV_PP_FLAG_DELAYED_EH = (1 << 3), /* delayed dev err handling */ 37320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ}; 37420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 375ee9ccdf70163ca6408f6965e0fbc65baeac7312cJeff Garzik#define IS_GEN_I(hpriv) ((hpriv)->hp_flags & MV_HP_GEN_I) 376ee9ccdf70163ca6408f6965e0fbc65baeac7312cJeff Garzik#define IS_GEN_II(hpriv) ((hpriv)->hp_flags & MV_HP_GEN_II) 377e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik#define IS_GEN_IIE(hpriv) ((hpriv)->hp_flags & MV_HP_GEN_IIE) 3788e7decdb8b132ee970a2636931b7653dec6af472Mark Lord#define IS_PCIE(hpriv) ((hpriv)->hp_flags & MV_HP_PCIE) 3791f39847255a02c69190ae30c33b8ccf4c10840dfMark Lord#define IS_SOC(hpriv) ((hpriv)->hp_flags & MV_HP_FLAG_SOC) 380bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik 38115a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek#define WINDOW_CTRL(i) (0x20030 + ((i) << 4)) 38215a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek#define WINDOW_BASE(i) (0x20034 + ((i) << 4)) 38315a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek 384095fec887eaa1c38d17c0c929a6733c744a9fa1fJeff Garzikenum { 385baf14aa14efcfdb5a74d5cf804691086c6bec743Jeff Garzik /* DMA boundary 0xffff is required by the s/g splitting 386baf14aa14efcfdb5a74d5cf804691086c6bec743Jeff Garzik * we need on /length/ in mv_fill-sg(). 387baf14aa14efcfdb5a74d5cf804691086c6bec743Jeff Garzik */ 388baf14aa14efcfdb5a74d5cf804691086c6bec743Jeff Garzik MV_DMA_BOUNDARY = 0xffffU, 389095fec887eaa1c38d17c0c929a6733c744a9fa1fJeff Garzik 3900ea9e179f436f153fc19fdaef7abbc1e0da20762Jeff Garzik /* mask of register bits containing lower 32 bits 3910ea9e179f436f153fc19fdaef7abbc1e0da20762Jeff Garzik * of EDMA request queue DMA address 3920ea9e179f436f153fc19fdaef7abbc1e0da20762Jeff Garzik */ 393095fec887eaa1c38d17c0c929a6733c744a9fa1fJeff Garzik EDMA_REQ_Q_BASE_LO_MASK = 0xfffffc00U, 394095fec887eaa1c38d17c0c929a6733c744a9fa1fJeff Garzik 3950ea9e179f436f153fc19fdaef7abbc1e0da20762Jeff Garzik /* ditto, for response queue */ 396095fec887eaa1c38d17c0c929a6733c744a9fa1fJeff Garzik EDMA_RSP_Q_BASE_LO_MASK = 0xffffff00U, 397095fec887eaa1c38d17c0c929a6733c744a9fa1fJeff Garzik}; 398095fec887eaa1c38d17c0c929a6733c744a9fa1fJeff Garzik 399522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzikenum chip_type { 400522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik chip_504x, 401522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik chip_508x, 402522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik chip_5080, 403522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik chip_604x, 404522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik chip_608x, 405e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik chip_6042, 406e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik chip_7042, 407f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara chip_soc, 408522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik}; 409522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik 41031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ/* Command ReQuest Block: 32B */ 41131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russstruct mv_crqb { 412e14698745dd0de1ddbf5cd0cca4313a90f8c1cc1Mark Lord __le32 sg_addr; 413e14698745dd0de1ddbf5cd0cca4313a90f8c1cc1Mark Lord __le32 sg_addr_hi; 414e14698745dd0de1ddbf5cd0cca4313a90f8c1cc1Mark Lord __le16 ctrl_flags; 415e14698745dd0de1ddbf5cd0cca4313a90f8c1cc1Mark Lord __le16 ata_cmd[11]; 41631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ}; 41720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 418e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzikstruct mv_crqb_iie { 419e14698745dd0de1ddbf5cd0cca4313a90f8c1cc1Mark Lord __le32 addr; 420e14698745dd0de1ddbf5cd0cca4313a90f8c1cc1Mark Lord __le32 addr_hi; 421e14698745dd0de1ddbf5cd0cca4313a90f8c1cc1Mark Lord __le32 flags; 422e14698745dd0de1ddbf5cd0cca4313a90f8c1cc1Mark Lord __le32 len; 423e14698745dd0de1ddbf5cd0cca4313a90f8c1cc1Mark Lord __le32 ata_cmd[4]; 424e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik}; 425e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik 42631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ/* Command ResPonse Block: 8B */ 42731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russstruct mv_crpb { 428e14698745dd0de1ddbf5cd0cca4313a90f8c1cc1Mark Lord __le16 id; 429e14698745dd0de1ddbf5cd0cca4313a90f8c1cc1Mark Lord __le16 flags; 430e14698745dd0de1ddbf5cd0cca4313a90f8c1cc1Mark Lord __le32 tmstmp; 43120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ}; 43220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 43331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ/* EDMA Physical Region Descriptor (ePRD); A.K.A. SG */ 43431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russstruct mv_sg { 435e14698745dd0de1ddbf5cd0cca4313a90f8c1cc1Mark Lord __le32 addr; 436e14698745dd0de1ddbf5cd0cca4313a90f8c1cc1Mark Lord __le32 flags_size; 437e14698745dd0de1ddbf5cd0cca4313a90f8c1cc1Mark Lord __le32 addr_hi; 438e14698745dd0de1ddbf5cd0cca4313a90f8c1cc1Mark Lord __le32 reserved; 43931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ}; 44020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 44108da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord/* 44208da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord * We keep a local cache of a few frequently accessed port 44308da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord * registers here, to avoid having to read them (very slow) 44408da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord * when switching between EDMA and non-EDMA modes. 44508da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord */ 44608da175937a35d34a83eaefbb3458472eb1a89d4Mark Lordstruct mv_cached_regs { 44708da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord u32 fiscfg; 44808da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord u32 ltmode; 44908da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord u32 haltcond; 450c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord u32 unknown_rsvd; 45108da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord}; 45208da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord 45331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russstruct mv_port_priv { 45431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ struct mv_crqb *crqb; 45531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ dma_addr_t crqb_dma; 45631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ struct mv_crpb *crpb; 45731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ dma_addr_t crpb_dma; 458eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord struct mv_sg *sg_tbl[MV_MAX_Q_DEPTH]; 459eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord dma_addr_t sg_tbl_dma[MV_MAX_Q_DEPTH]; 460bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 461bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik unsigned int req_idx; 462bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik unsigned int resp_idx; 463bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 46431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ u32 pp_flags; 46508da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord struct mv_cached_regs cached; 46629d187bb1e30682e228ce461c487d78d945c3e4fMark Lord unsigned int delayed_eh_pmp_map; 46731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ}; 46831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 469bca1c4eb9411533d613123618c0d127fae532595Jeff Garzikstruct mv_port_signal { 470bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik u32 amps; 471bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik u32 pre; 472bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik}; 473bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik 47402a121da5a53d415b6596bc19cc6999d295d32a4Mark Lordstruct mv_host_priv { 47502a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord u32 hp_flags; 47696e2c487933e5f69e98fffdcae2c35c78a671c07Mark Lord u32 main_irq_mask; 47702a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord struct mv_port_signal signal[8]; 47802a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord const struct mv_hw_ops *ops; 479f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara int n_ports; 480f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara void __iomem *base; 4817368f91926a2870a8c3f9546d86535ce71ae0757Mark Lord void __iomem *main_irq_cause_addr; 4827368f91926a2870a8c3f9546d86535ce71ae0757Mark Lord void __iomem *main_irq_mask_addr; 48302a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord u32 irq_cause_ofs; 48402a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord u32 irq_mask_ofs; 48502a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord u32 unmask_all_irqs; 486da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord /* 487da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord * These consistent DMA memory pools give us guaranteed 488da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord * alignment for hardware-accessed data structures, 489da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord * and less memory waste in accomplishing the alignment. 490da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord */ 491da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord struct dma_pool *crqb_pool; 492da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord struct dma_pool *crpb_pool; 493da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord struct dma_pool *sg_tbl_pool; 49402a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord}; 49502a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord 49647c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzikstruct mv_hw_ops { 4972a47ce06d534692f9bd2bf4e90a20fc9b1054c39Jeff Garzik void (*phy_errata)(struct mv_host_priv *hpriv, void __iomem *mmio, 4982a47ce06d534692f9bd2bf4e90a20fc9b1054c39Jeff Garzik unsigned int port); 49947c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik void (*enable_leds)(struct mv_host_priv *hpriv, void __iomem *mmio); 50047c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik void (*read_preamp)(struct mv_host_priv *hpriv, int idx, 50147c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik void __iomem *mmio); 502c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik int (*reset_hc)(struct mv_host_priv *hpriv, void __iomem *mmio, 503c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik unsigned int n_hc); 504522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik void (*reset_flash)(struct mv_host_priv *hpriv, void __iomem *mmio); 5057bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara void (*reset_bus)(struct ata_host *host, void __iomem *mmio); 50647c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik}; 50747c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik 50882ef04fb4c82542b3eda81cca461f0594ce9cd0bTejun Heostatic int mv_scr_read(struct ata_link *link, unsigned int sc_reg_in, u32 *val); 50982ef04fb4c82542b3eda81cca461f0594ce9cd0bTejun Heostatic int mv_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val); 51082ef04fb4c82542b3eda81cca461f0594ce9cd0bTejun Heostatic int mv5_scr_read(struct ata_link *link, unsigned int sc_reg_in, u32 *val); 51182ef04fb4c82542b3eda81cca461f0594ce9cd0bTejun Heostatic int mv5_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val); 51231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russstatic int mv_port_start(struct ata_port *ap); 51331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russstatic void mv_port_stop(struct ata_port *ap); 5143e4a139107e497a741c26f8a377a10f214d63ec1Mark Lordstatic int mv_qc_defer(struct ata_queued_cmd *qc); 51531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russstatic void mv_qc_prep(struct ata_queued_cmd *qc); 516e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzikstatic void mv_qc_prep_iie(struct ata_queued_cmd *qc); 5179a3d9eb0177eb10500d49cd283b35576082a522dTejun Heostatic unsigned int mv_qc_issue(struct ata_queued_cmd *qc); 518a1efdaba2dbd6fb89e23a87b66d3f4dd92c9f5afTejun Heostatic int mv_hardreset(struct ata_link *link, unsigned int *class, 519a1efdaba2dbd6fb89e23a87b66d3f4dd92c9f5afTejun Heo unsigned long deadline); 520bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzikstatic void mv_eh_freeze(struct ata_port *ap); 521bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzikstatic void mv_eh_thaw(struct ata_port *ap); 522f273827e2aadcf2f74a7bdc9ad715a1b20ea7ddaMark Lordstatic void mv6_dev_config(struct ata_device *dev); 52320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 5242a47ce06d534692f9bd2bf4e90a20fc9b1054c39Jeff Garzikstatic void mv5_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio, 5252a47ce06d534692f9bd2bf4e90a20fc9b1054c39Jeff Garzik unsigned int port); 52647c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzikstatic void mv5_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio); 52747c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzikstatic void mv5_read_preamp(struct mv_host_priv *hpriv, int idx, 52847c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik void __iomem *mmio); 529c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzikstatic int mv5_reset_hc(struct mv_host_priv *hpriv, void __iomem *mmio, 530c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik unsigned int n_hc); 531522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzikstatic void mv5_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio); 5327bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bisharastatic void mv5_reset_bus(struct ata_host *host, void __iomem *mmio); 53347c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik 5342a47ce06d534692f9bd2bf4e90a20fc9b1054c39Jeff Garzikstatic void mv6_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio, 5352a47ce06d534692f9bd2bf4e90a20fc9b1054c39Jeff Garzik unsigned int port); 53647c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzikstatic void mv6_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio); 53747c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzikstatic void mv6_read_preamp(struct mv_host_priv *hpriv, int idx, 53847c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik void __iomem *mmio); 539c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzikstatic int mv6_reset_hc(struct mv_host_priv *hpriv, void __iomem *mmio, 540c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik unsigned int n_hc); 541522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzikstatic void mv6_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio); 542f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic void mv_soc_enable_leds(struct mv_host_priv *hpriv, 543f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara void __iomem *mmio); 544f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic void mv_soc_read_preamp(struct mv_host_priv *hpriv, int idx, 545f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara void __iomem *mmio); 546f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic int mv_soc_reset_hc(struct mv_host_priv *hpriv, 547f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara void __iomem *mmio, unsigned int n_hc); 548f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic void mv_soc_reset_flash(struct mv_host_priv *hpriv, 549f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara void __iomem *mmio); 550f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic void mv_soc_reset_bus(struct ata_host *host, void __iomem *mmio); 5517bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bisharastatic void mv_reset_pci_bus(struct ata_host *host, void __iomem *mmio); 552e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lordstatic void mv_reset_channel(struct mv_host_priv *hpriv, void __iomem *mmio, 553c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik unsigned int port_no); 554e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lordstatic int mv_stop_edma(struct ata_port *ap); 555b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lordstatic int mv_stop_edma_engine(void __iomem *port_mmio); 55600b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lordstatic void mv_edma_cfg(struct ata_port *ap, int want_ncq, int want_edma); 55747c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik 558e49856d82a887ce365637176f9f99ab68076eae8Mark Lordstatic void mv_pmp_select(struct ata_port *ap, int pmp); 559e49856d82a887ce365637176f9f99ab68076eae8Mark Lordstatic int mv_pmp_hardreset(struct ata_link *link, unsigned int *class, 560e49856d82a887ce365637176f9f99ab68076eae8Mark Lord unsigned long deadline); 561e49856d82a887ce365637176f9f99ab68076eae8Mark Lordstatic int mv_softreset(struct ata_link *link, unsigned int *class, 562e49856d82a887ce365637176f9f99ab68076eae8Mark Lord unsigned long deadline); 56329d187bb1e30682e228ce461c487d78d945c3e4fMark Lordstatic void mv_pmp_error_handler(struct ata_port *ap); 5644c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lordstatic void mv_process_crpb_entries(struct ata_port *ap, 5654c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord struct mv_port_priv *pp); 56647c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik 567da14265e776f35067045b8555b5f5f7521e50bc4Mark Lordstatic void mv_sff_irq_clear(struct ata_port *ap); 568da14265e776f35067045b8555b5f5f7521e50bc4Mark Lordstatic int mv_check_atapi_dma(struct ata_queued_cmd *qc); 569da14265e776f35067045b8555b5f5f7521e50bc4Mark Lordstatic void mv_bmdma_setup(struct ata_queued_cmd *qc); 570da14265e776f35067045b8555b5f5f7521e50bc4Mark Lordstatic void mv_bmdma_start(struct ata_queued_cmd *qc); 571da14265e776f35067045b8555b5f5f7521e50bc4Mark Lordstatic void mv_bmdma_stop(struct ata_queued_cmd *qc); 572da14265e776f35067045b8555b5f5f7521e50bc4Mark Lordstatic u8 mv_bmdma_status(struct ata_port *ap); 573da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord 574eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord/* .sg_tablesize is (MV_MAX_SG_CT / 2) in the structures below 575eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord * because we have to allow room for worst case splitting of 576eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord * PRDs for 64K boundaries in mv_fill_sg(). 577eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord */ 578c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzikstatic struct scsi_host_template mv5_sht = { 57968d1d07b510bb57a504588adc2bd2758adea0965Tejun Heo ATA_BASE_SHT(DRV_NAME), 580baf14aa14efcfdb5a74d5cf804691086c6bec743Jeff Garzik .sg_tablesize = MV_MAX_SG_CT / 2, 581c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik .dma_boundary = MV_DMA_BOUNDARY, 582c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik}; 583c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik 584c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzikstatic struct scsi_host_template mv6_sht = { 58568d1d07b510bb57a504588adc2bd2758adea0965Tejun Heo ATA_NCQ_SHT(DRV_NAME), 586138bfdd03f2c08cc62b6af3900fb7be1c696315bMark Lord .can_queue = MV_MAX_Q_DEPTH - 1, 587baf14aa14efcfdb5a74d5cf804691086c6bec743Jeff Garzik .sg_tablesize = MV_MAX_SG_CT / 2, 58820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ .dma_boundary = MV_DMA_BOUNDARY, 58920f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ}; 59020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 591029cfd6b74fc5c517865fad78cf4a3ea8d9b664aTejun Heostatic struct ata_port_operations mv5_ops = { 592029cfd6b74fc5c517865fad78cf4a3ea8d9b664aTejun Heo .inherits = &ata_sff_port_ops, 593c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 5943e4a139107e497a741c26f8a377a10f214d63ec1Mark Lord .qc_defer = mv_qc_defer, 595c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik .qc_prep = mv_qc_prep, 596c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik .qc_issue = mv_qc_issue, 597c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 598bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik .freeze = mv_eh_freeze, 599bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik .thaw = mv_eh_thaw, 600a1efdaba2dbd6fb89e23a87b66d3f4dd92c9f5afTejun Heo .hardreset = mv_hardreset, 601a1efdaba2dbd6fb89e23a87b66d3f4dd92c9f5afTejun Heo .error_handler = ata_std_error_handler, /* avoid SFF EH */ 602029cfd6b74fc5c517865fad78cf4a3ea8d9b664aTejun Heo .post_internal_cmd = ATA_OP_NULL, 603bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 604c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik .scr_read = mv5_scr_read, 605c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik .scr_write = mv5_scr_write, 606c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 607c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik .port_start = mv_port_start, 608c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik .port_stop = mv_port_stop, 609c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik}; 610c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 611029cfd6b74fc5c517865fad78cf4a3ea8d9b664aTejun Heostatic struct ata_port_operations mv6_ops = { 612029cfd6b74fc5c517865fad78cf4a3ea8d9b664aTejun Heo .inherits = &mv5_ops, 613f273827e2aadcf2f74a7bdc9ad715a1b20ea7ddaMark Lord .dev_config = mv6_dev_config, 61420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ .scr_read = mv_scr_read, 61520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ .scr_write = mv_scr_write, 61620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 617e49856d82a887ce365637176f9f99ab68076eae8Mark Lord .pmp_hardreset = mv_pmp_hardreset, 618e49856d82a887ce365637176f9f99ab68076eae8Mark Lord .pmp_softreset = mv_softreset, 619e49856d82a887ce365637176f9f99ab68076eae8Mark Lord .softreset = mv_softreset, 62029d187bb1e30682e228ce461c487d78d945c3e4fMark Lord .error_handler = mv_pmp_error_handler, 621da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord 622da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord .sff_irq_clear = mv_sff_irq_clear, 623da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord .check_atapi_dma = mv_check_atapi_dma, 624da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord .bmdma_setup = mv_bmdma_setup, 625da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord .bmdma_start = mv_bmdma_start, 626da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord .bmdma_stop = mv_bmdma_stop, 627da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord .bmdma_status = mv_bmdma_status, 62820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ}; 62920f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 630029cfd6b74fc5c517865fad78cf4a3ea8d9b664aTejun Heostatic struct ata_port_operations mv_iie_ops = { 631029cfd6b74fc5c517865fad78cf4a3ea8d9b664aTejun Heo .inherits = &mv6_ops, 632029cfd6b74fc5c517865fad78cf4a3ea8d9b664aTejun Heo .dev_config = ATA_OP_NULL, 633e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik .qc_prep = mv_qc_prep_iie, 634e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik}; 635e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik 63698ac62defe529d04a192688f40d801a2d8fbcf98Arjan van de Venstatic const struct ata_port_info mv_port_info[] = { 63720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ { /* chip_504x */ 63891b1a84c10869e2e46a576e5367de3166bff8eccMark Lord .flags = MV_GEN_I_FLAGS, 63931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ .pio_mask = 0x1f, /* pio0-4 */ 640bf6263a853c9c143bf03f0a6fdcc68ab714fb5f5Jeff Garzik .udma_mask = ATA_UDMA6, 641c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik .port_ops = &mv5_ops, 64220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ }, 64320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ { /* chip_508x */ 64491b1a84c10869e2e46a576e5367de3166bff8eccMark Lord .flags = MV_GEN_I_FLAGS | MV_FLAG_DUAL_HC, 64531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ .pio_mask = 0x1f, /* pio0-4 */ 646bf6263a853c9c143bf03f0a6fdcc68ab714fb5f5Jeff Garzik .udma_mask = ATA_UDMA6, 647c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik .port_ops = &mv5_ops, 64820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ }, 64947c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik { /* chip_5080 */ 65091b1a84c10869e2e46a576e5367de3166bff8eccMark Lord .flags = MV_GEN_I_FLAGS | MV_FLAG_DUAL_HC, 65147c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik .pio_mask = 0x1f, /* pio0-4 */ 652bf6263a853c9c143bf03f0a6fdcc68ab714fb5f5Jeff Garzik .udma_mask = ATA_UDMA6, 653c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik .port_ops = &mv5_ops, 65447c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik }, 65520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ { /* chip_604x */ 65691b1a84c10869e2e46a576e5367de3166bff8eccMark Lord .flags = MV_GEN_II_FLAGS, 65731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ .pio_mask = 0x1f, /* pio0-4 */ 658bf6263a853c9c143bf03f0a6fdcc68ab714fb5f5Jeff Garzik .udma_mask = ATA_UDMA6, 659c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik .port_ops = &mv6_ops, 66020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ }, 66120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ { /* chip_608x */ 66291b1a84c10869e2e46a576e5367de3166bff8eccMark Lord .flags = MV_GEN_II_FLAGS | MV_FLAG_DUAL_HC, 66331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ .pio_mask = 0x1f, /* pio0-4 */ 664bf6263a853c9c143bf03f0a6fdcc68ab714fb5f5Jeff Garzik .udma_mask = ATA_UDMA6, 665c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik .port_ops = &mv6_ops, 66620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ }, 667e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik { /* chip_6042 */ 66891b1a84c10869e2e46a576e5367de3166bff8eccMark Lord .flags = MV_GEN_IIE_FLAGS, 669e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik .pio_mask = 0x1f, /* pio0-4 */ 670bf6263a853c9c143bf03f0a6fdcc68ab714fb5f5Jeff Garzik .udma_mask = ATA_UDMA6, 671e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik .port_ops = &mv_iie_ops, 672e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik }, 673e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik { /* chip_7042 */ 67491b1a84c10869e2e46a576e5367de3166bff8eccMark Lord .flags = MV_GEN_IIE_FLAGS, 675e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik .pio_mask = 0x1f, /* pio0-4 */ 676bf6263a853c9c143bf03f0a6fdcc68ab714fb5f5Jeff Garzik .udma_mask = ATA_UDMA6, 677e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik .port_ops = &mv_iie_ops, 678e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik }, 679f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara { /* chip_soc */ 68091b1a84c10869e2e46a576e5367de3166bff8eccMark Lord .flags = MV_GEN_IIE_FLAGS, 68117c5aab5b34e351531466e35b154ca86db7d46a9Mark Lord .pio_mask = 0x1f, /* pio0-4 */ 68217c5aab5b34e351531466e35b154ca86db7d46a9Mark Lord .udma_mask = ATA_UDMA6, 68317c5aab5b34e351531466e35b154ca86db7d46a9Mark Lord .port_ops = &mv_iie_ops, 684f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara }, 68520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ}; 68620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 6873b7d697dfb7d03edb87e50b743a7ecff029618e9Jeff Garzikstatic const struct pci_device_id mv_pci_tbl[] = { 6882d2744fc8be620a2dc469cf48349e3e704119f1bJeff Garzik { PCI_VDEVICE(MARVELL, 0x5040), chip_504x }, 6892d2744fc8be620a2dc469cf48349e3e704119f1bJeff Garzik { PCI_VDEVICE(MARVELL, 0x5041), chip_504x }, 6902d2744fc8be620a2dc469cf48349e3e704119f1bJeff Garzik { PCI_VDEVICE(MARVELL, 0x5080), chip_5080 }, 6912d2744fc8be620a2dc469cf48349e3e704119f1bJeff Garzik { PCI_VDEVICE(MARVELL, 0x5081), chip_508x }, 69246c5784c8fa736c2bb42fe681189b86e99abdc2eMark Lord /* RocketRAID 1720/174x have different identifiers */ 69346c5784c8fa736c2bb42fe681189b86e99abdc2eMark Lord { PCI_VDEVICE(TTI, 0x1720), chip_6042 }, 6944462254ac6be9150aae87d54d388fc348d6fceadMark Lord { PCI_VDEVICE(TTI, 0x1740), chip_6042 }, 6954462254ac6be9150aae87d54d388fc348d6fceadMark Lord { PCI_VDEVICE(TTI, 0x1742), chip_6042 }, 6962d2744fc8be620a2dc469cf48349e3e704119f1bJeff Garzik 6972d2744fc8be620a2dc469cf48349e3e704119f1bJeff Garzik { PCI_VDEVICE(MARVELL, 0x6040), chip_604x }, 6982d2744fc8be620a2dc469cf48349e3e704119f1bJeff Garzik { PCI_VDEVICE(MARVELL, 0x6041), chip_604x }, 6992d2744fc8be620a2dc469cf48349e3e704119f1bJeff Garzik { PCI_VDEVICE(MARVELL, 0x6042), chip_6042 }, 7002d2744fc8be620a2dc469cf48349e3e704119f1bJeff Garzik { PCI_VDEVICE(MARVELL, 0x6080), chip_608x }, 7012d2744fc8be620a2dc469cf48349e3e704119f1bJeff Garzik { PCI_VDEVICE(MARVELL, 0x6081), chip_608x }, 7022d2744fc8be620a2dc469cf48349e3e704119f1bJeff Garzik 7032d2744fc8be620a2dc469cf48349e3e704119f1bJeff Garzik { PCI_VDEVICE(ADAPTEC2, 0x0241), chip_604x }, 7042d2744fc8be620a2dc469cf48349e3e704119f1bJeff Garzik 705d9f9c6bc91c14f53ffa782ffcd42259ecae1d38cFlorian Attenberger /* Adaptec 1430SA */ 706d9f9c6bc91c14f53ffa782ffcd42259ecae1d38cFlorian Attenberger { PCI_VDEVICE(ADAPTEC2, 0x0243), chip_7042 }, 707d9f9c6bc91c14f53ffa782ffcd42259ecae1d38cFlorian Attenberger 70802a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord /* Marvell 7042 support */ 7096a3d586d8e8a50e4cfd7f8c36d82a53c5614e05bMorrison, Tom { PCI_VDEVICE(MARVELL, 0x7042), chip_7042 }, 7106a3d586d8e8a50e4cfd7f8c36d82a53c5614e05bMorrison, Tom 71102a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord /* Highpoint RocketRAID PCIe series */ 71202a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord { PCI_VDEVICE(TTI, 0x2300), chip_7042 }, 71302a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord { PCI_VDEVICE(TTI, 0x2310), chip_7042 }, 71402a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord 7152d2744fc8be620a2dc469cf48349e3e704119f1bJeff Garzik { } /* terminate list */ 71620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ}; 71720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 71847c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzikstatic const struct mv_hw_ops mv5xxx_ops = { 71947c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik .phy_errata = mv5_phy_errata, 72047c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik .enable_leds = mv5_enable_leds, 72147c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik .read_preamp = mv5_read_preamp, 72247c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik .reset_hc = mv5_reset_hc, 723522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik .reset_flash = mv5_reset_flash, 724522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik .reset_bus = mv5_reset_bus, 72547c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik}; 72647c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik 72747c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzikstatic const struct mv_hw_ops mv6xxx_ops = { 72847c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik .phy_errata = mv6_phy_errata, 72947c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik .enable_leds = mv6_enable_leds, 73047c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik .read_preamp = mv6_read_preamp, 73147c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik .reset_hc = mv6_reset_hc, 732522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik .reset_flash = mv6_reset_flash, 733522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik .reset_bus = mv_reset_pci_bus, 73447c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik}; 73547c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik 736f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic const struct mv_hw_ops mv_soc_ops = { 737f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara .phy_errata = mv6_phy_errata, 738f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara .enable_leds = mv_soc_enable_leds, 739f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara .read_preamp = mv_soc_read_preamp, 740f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara .reset_hc = mv_soc_reset_hc, 741f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara .reset_flash = mv_soc_reset_flash, 742f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara .reset_bus = mv_soc_reset_bus, 743f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara}; 744f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 74520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ/* 74620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ * Functions 74720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ */ 74820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 74920f733e7d75a16bffc34842b7682c9247dd5f954Brett Russstatic inline void writelfl(unsigned long data, void __iomem *addr) 75020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ{ 75120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ writel(data, addr); 75220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ (void) readl(addr); /* flush to avoid PCI posted write */ 75320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ} 75420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 755c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzikstatic inline unsigned int mv_hc_from_port(unsigned int port) 756c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik{ 757c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik return port >> MV_PORT_HC_SHIFT; 758c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik} 759c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 760c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzikstatic inline unsigned int mv_hardport_from_port(unsigned int port) 761c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik{ 762c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik return port & MV_PORT_MASK; 763c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik} 764c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 7651cfd19aeb8c8b6291a9d11143b4d8f3dac508ed4Mark Lord/* 7661cfd19aeb8c8b6291a9d11143b4d8f3dac508ed4Mark Lord * Consolidate some rather tricky bit shift calculations. 7671cfd19aeb8c8b6291a9d11143b4d8f3dac508ed4Mark Lord * This is hot-path stuff, so not a function. 7681cfd19aeb8c8b6291a9d11143b4d8f3dac508ed4Mark Lord * Simple code, with two return values, so macro rather than inline. 7691cfd19aeb8c8b6291a9d11143b4d8f3dac508ed4Mark Lord * 7701cfd19aeb8c8b6291a9d11143b4d8f3dac508ed4Mark Lord * port is the sole input, in range 0..7. 7717368f91926a2870a8c3f9546d86535ce71ae0757Mark Lord * shift is one output, for use with main_irq_cause / main_irq_mask registers. 7727368f91926a2870a8c3f9546d86535ce71ae0757Mark Lord * hardport is the other output, in range 0..3. 7731cfd19aeb8c8b6291a9d11143b4d8f3dac508ed4Mark Lord * 7741cfd19aeb8c8b6291a9d11143b4d8f3dac508ed4Mark Lord * Note that port and hardport may be the same variable in some cases. 7751cfd19aeb8c8b6291a9d11143b4d8f3dac508ed4Mark Lord */ 7761cfd19aeb8c8b6291a9d11143b4d8f3dac508ed4Mark Lord#define MV_PORT_TO_SHIFT_AND_HARDPORT(port, shift, hardport) \ 7771cfd19aeb8c8b6291a9d11143b4d8f3dac508ed4Mark Lord{ \ 7781cfd19aeb8c8b6291a9d11143b4d8f3dac508ed4Mark Lord shift = mv_hc_from_port(port) * HC_SHIFT; \ 7791cfd19aeb8c8b6291a9d11143b4d8f3dac508ed4Mark Lord hardport = mv_hardport_from_port(port); \ 7801cfd19aeb8c8b6291a9d11143b4d8f3dac508ed4Mark Lord shift += hardport * 2; \ 7811cfd19aeb8c8b6291a9d11143b4d8f3dac508ed4Mark Lord} 7821cfd19aeb8c8b6291a9d11143b4d8f3dac508ed4Mark Lord 783352fab701ca4753dd005b67ce5e512be944eb591Mark Lordstatic inline void __iomem *mv_hc_base(void __iomem *base, unsigned int hc) 784352fab701ca4753dd005b67ce5e512be944eb591Mark Lord{ 785352fab701ca4753dd005b67ce5e512be944eb591Mark Lord return (base + MV_SATAHC0_REG_BASE + (hc * MV_SATAHC_REG_SZ)); 786352fab701ca4753dd005b67ce5e512be944eb591Mark Lord} 787352fab701ca4753dd005b67ce5e512be944eb591Mark Lord 788c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzikstatic inline void __iomem *mv_hc_base_from_port(void __iomem *base, 789c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik unsigned int port) 790c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik{ 791c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik return mv_hc_base(base, mv_hc_from_port(port)); 792c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik} 793c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 79420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russstatic inline void __iomem *mv_port_base(void __iomem *base, unsigned int port) 79520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ{ 796c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik return mv_hc_base_from_port(base, port) + 7978b260248d9e0e8b64bb72fd4dee03ad86984c344Jeff Garzik MV_SATAHC_ARBTR_REG_SZ + 798c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik (mv_hardport_from_port(port) * MV_PORT_REG_SZ); 79920f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ} 80020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 801e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lordstatic void __iomem *mv5_phy_base(void __iomem *mmio, unsigned int port) 802e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord{ 803e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord void __iomem *hc_mmio = mv_hc_base_from_port(mmio, port); 804e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord unsigned long ofs = (mv_hardport_from_port(port) + 1) * 0x100UL; 805e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord 806e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord return hc_mmio + ofs; 807e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord} 808e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord 809f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic inline void __iomem *mv_host_base(struct ata_host *host) 810f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara{ 811f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara struct mv_host_priv *hpriv = host->private_data; 812f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara return hpriv->base; 813f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara} 814f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 81520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russstatic inline void __iomem *mv_ap_base(struct ata_port *ap) 81620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ{ 817f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara return mv_port_base(mv_host_base(ap->host), ap->port_no); 81820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ} 81920f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 820cca3974e48607c3775dc73b544a5700b2e37c21aJeff Garzikstatic inline int mv_get_hc_count(unsigned long port_flags) 82131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ{ 822cca3974e48607c3775dc73b544a5700b2e37c21aJeff Garzik return ((port_flags & MV_FLAG_DUAL_HC) ? 2 : 1); 82331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ} 82431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 82508da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord/** 82608da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord * mv_save_cached_regs - (re-)initialize cached port registers 82708da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord * @ap: the port whose registers we are caching 82808da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord * 82908da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord * Initialize the local cache of port registers, 83008da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord * so that reading them over and over again can 83108da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord * be avoided on the hotter paths of this driver. 83208da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord * This saves a few microseconds each time we switch 83308da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord * to/from EDMA mode to perform (eg.) a drive cache flush. 83408da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord */ 83508da175937a35d34a83eaefbb3458472eb1a89d4Mark Lordstatic void mv_save_cached_regs(struct ata_port *ap) 83608da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord{ 83708da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord void __iomem *port_mmio = mv_ap_base(ap); 83808da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord struct mv_port_priv *pp = ap->private_data; 83908da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord 84008da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord pp->cached.fiscfg = readl(port_mmio + FISCFG_OFS); 84108da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord pp->cached.ltmode = readl(port_mmio + LTMODE_OFS); 84208da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord pp->cached.haltcond = readl(port_mmio + EDMA_HALTCOND_OFS); 843c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord pp->cached.unknown_rsvd = readl(port_mmio + EDMA_UNKNOWN_RSVD_OFS); 84408da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord} 84508da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord 84608da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord/** 84708da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord * mv_write_cached_reg - write to a cached port register 84808da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord * @addr: hardware address of the register 84908da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord * @old: pointer to cached value of the register 85008da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord * @new: new value for the register 85108da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord * 85208da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord * Write a new value to a cached register, 85308da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord * but only if the value is different from before. 85408da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord */ 85508da175937a35d34a83eaefbb3458472eb1a89d4Mark Lordstatic inline void mv_write_cached_reg(void __iomem *addr, u32 *old, u32 new) 85608da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord{ 85708da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord if (new != *old) { 85808da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord *old = new; 85908da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord writel(new, addr); 86008da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord } 86108da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord} 86208da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord 863c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzikstatic void mv_set_edma_ptrs(void __iomem *port_mmio, 864c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik struct mv_host_priv *hpriv, 865c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik struct mv_port_priv *pp) 866c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik{ 867bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik u32 index; 868bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 869c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik /* 870c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik * initialize request queue 871c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik */ 872fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord pp->req_idx &= MV_MAX_Q_DEPTH_MASK; /* paranoia */ 873fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord index = pp->req_idx << EDMA_REQ_Q_PTR_SHIFT; 874bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 875c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik WARN_ON(pp->crqb_dma & 0x3ff); 876c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik writel((pp->crqb_dma >> 16) >> 16, port_mmio + EDMA_REQ_Q_BASE_HI_OFS); 877bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik writelfl((pp->crqb_dma & EDMA_REQ_Q_BASE_LO_MASK) | index, 878c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik port_mmio + EDMA_REQ_Q_IN_PTR_OFS); 8795cf73bfb061552aa18d816d2859409be9ace5306Mark Lord writelfl(index, port_mmio + EDMA_REQ_Q_OUT_PTR_OFS); 880c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik 881c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik /* 882c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik * initialize response queue 883c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik */ 884fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord pp->resp_idx &= MV_MAX_Q_DEPTH_MASK; /* paranoia */ 885fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord index = pp->resp_idx << EDMA_RSP_Q_PTR_SHIFT; 886bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 887c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik WARN_ON(pp->crpb_dma & 0xff); 888c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik writel((pp->crpb_dma >> 16) >> 16, port_mmio + EDMA_RSP_Q_BASE_HI_OFS); 8895cf73bfb061552aa18d816d2859409be9ace5306Mark Lord writelfl(index, port_mmio + EDMA_RSP_Q_IN_PTR_OFS); 890bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik writelfl((pp->crpb_dma & EDMA_RSP_Q_BASE_LO_MASK) | index, 891c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik port_mmio + EDMA_RSP_Q_OUT_PTR_OFS); 892c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik} 893c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik 894c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lordstatic void mv_set_main_irq_mask(struct ata_host *host, 895c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord u32 disable_bits, u32 enable_bits) 896c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord{ 897c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord struct mv_host_priv *hpriv = host->private_data; 898c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord u32 old_mask, new_mask; 899c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord 90096e2c487933e5f69e98fffdcae2c35c78a671c07Mark Lord old_mask = hpriv->main_irq_mask; 901c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord new_mask = (old_mask & ~disable_bits) | enable_bits; 90296e2c487933e5f69e98fffdcae2c35c78a671c07Mark Lord if (new_mask != old_mask) { 90396e2c487933e5f69e98fffdcae2c35c78a671c07Mark Lord hpriv->main_irq_mask = new_mask; 904c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord writelfl(new_mask, hpriv->main_irq_mask_addr); 90596e2c487933e5f69e98fffdcae2c35c78a671c07Mark Lord } 906c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord} 907c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord 908c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lordstatic void mv_enable_port_irqs(struct ata_port *ap, 909c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord unsigned int port_bits) 910c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord{ 911c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord unsigned int shift, hardport, port = ap->port_no; 912c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord u32 disable_bits, enable_bits; 913c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord 914c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord MV_PORT_TO_SHIFT_AND_HARDPORT(port, shift, hardport); 915c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord 916c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord disable_bits = (DONE_IRQ | ERR_IRQ) << shift; 917c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord enable_bits = port_bits << shift; 918c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord mv_set_main_irq_mask(ap->host, disable_bits, enable_bits); 919c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord} 920c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord 92100b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lordstatic void mv_clear_and_enable_port_irqs(struct ata_port *ap, 92200b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord void __iomem *port_mmio, 92300b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord unsigned int port_irqs) 92400b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord{ 92500b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord struct mv_host_priv *hpriv = ap->host->private_data; 92600b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord int hardport = mv_hardport_from_port(ap->port_no); 92700b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord void __iomem *hc_mmio = mv_hc_base_from_port( 92800b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord mv_host_base(ap->host), ap->port_no); 92900b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord u32 hc_irq_cause; 93000b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord 93100b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord /* clear EDMA event indicators, if any */ 93200b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord writelfl(0, port_mmio + EDMA_ERR_IRQ_CAUSE_OFS); 93300b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord 93400b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord /* clear pending irq events */ 93500b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord hc_irq_cause = ~((DEV_IRQ | DMA_IRQ) << hardport); 93600b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord writelfl(hc_irq_cause, hc_mmio + HC_IRQ_CAUSE_OFS); 93700b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord 93800b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord /* clear FIS IRQ Cause */ 93900b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord if (IS_GEN_IIE(hpriv)) 94000b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord writelfl(0, port_mmio + SATA_FIS_IRQ_CAUSE_OFS); 94100b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord 94200b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord mv_enable_port_irqs(ap, port_irqs); 94300b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord} 94400b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord 94505b308e1df6d9d673daedb517969241f41278b52Brett Russ/** 94600b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord * mv_start_edma - Enable eDMA engine 94705b308e1df6d9d673daedb517969241f41278b52Brett Russ * @base: port base address 94805b308e1df6d9d673daedb517969241f41278b52Brett Russ * @pp: port private data 94905b308e1df6d9d673daedb517969241f41278b52Brett Russ * 950beec7dbc6ff003bbc94de62b3323519c878fb2acTejun Heo * Verify the local cache of the eDMA state is accurate with a 951beec7dbc6ff003bbc94de62b3323519c878fb2acTejun Heo * WARN_ON. 95205b308e1df6d9d673daedb517969241f41278b52Brett Russ * 95305b308e1df6d9d673daedb517969241f41278b52Brett Russ * LOCKING: 95405b308e1df6d9d673daedb517969241f41278b52Brett Russ * Inherited from caller. 95505b308e1df6d9d673daedb517969241f41278b52Brett Russ */ 95600b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lordstatic void mv_start_edma(struct ata_port *ap, void __iomem *port_mmio, 957721091685f853ba4e6c49f26f989db0b1a811250Mark Lord struct mv_port_priv *pp, u8 protocol) 95820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ{ 959721091685f853ba4e6c49f26f989db0b1a811250Mark Lord int want_ncq = (protocol == ATA_PROT_NCQ); 960721091685f853ba4e6c49f26f989db0b1a811250Mark Lord 961721091685f853ba4e6c49f26f989db0b1a811250Mark Lord if (pp->pp_flags & MV_PP_FLAG_EDMA_EN) { 962721091685f853ba4e6c49f26f989db0b1a811250Mark Lord int using_ncq = ((pp->pp_flags & MV_PP_FLAG_NCQ_EN) != 0); 963721091685f853ba4e6c49f26f989db0b1a811250Mark Lord if (want_ncq != using_ncq) 964b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord mv_stop_edma(ap); 965721091685f853ba4e6c49f26f989db0b1a811250Mark Lord } 966c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik if (!(pp->pp_flags & MV_PP_FLAG_EDMA_EN)) { 9670c58912e192fc3a4835d772aafa40b72552b819fMark Lord struct mv_host_priv *hpriv = ap->host->private_data; 9680c58912e192fc3a4835d772aafa40b72552b819fMark Lord 96900b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord mv_edma_cfg(ap, want_ncq, 1); 9700c58912e192fc3a4835d772aafa40b72552b819fMark Lord 971f630d562829fcd8160a118f98c1e5b9cdb4e703eMark Lord mv_set_edma_ptrs(port_mmio, hpriv, pp); 97200b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord mv_clear_and_enable_port_irqs(ap, port_mmio, DONE_IRQ|ERR_IRQ); 973bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 974f630d562829fcd8160a118f98c1e5b9cdb4e703eMark Lord writelfl(EDMA_EN, port_mmio + EDMA_CMD_OFS); 975afb0edd922c7ed6e73678730921dfcccebec17e8Brett Russ pp->pp_flags |= MV_PP_FLAG_EDMA_EN; 976afb0edd922c7ed6e73678730921dfcccebec17e8Brett Russ } 97720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ} 97820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 9799b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0Mark Lordstatic void mv_wait_for_edma_empty_idle(struct ata_port *ap) 9809b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0Mark Lord{ 9819b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0Mark Lord void __iomem *port_mmio = mv_ap_base(ap); 9829b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0Mark Lord const u32 empty_idle = (EDMA_STATUS_CACHE_EMPTY | EDMA_STATUS_IDLE); 9839b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0Mark Lord const int per_loop = 5, timeout = (15 * 1000 / per_loop); 9849b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0Mark Lord int i; 9859b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0Mark Lord 9869b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0Mark Lord /* 9879b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0Mark Lord * Wait for the EDMA engine to finish transactions in progress. 988c46938ccfe35a58a0873715ee4c26fc9eb8d87b3Mark Lord * No idea what a good "timeout" value might be, but measurements 989c46938ccfe35a58a0873715ee4c26fc9eb8d87b3Mark Lord * indicate that it often requires hundreds of microseconds 990c46938ccfe35a58a0873715ee4c26fc9eb8d87b3Mark Lord * with two drives in-use. So we use the 15msec value above 991c46938ccfe35a58a0873715ee4c26fc9eb8d87b3Mark Lord * as a rough guess at what even more drives might require. 9929b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0Mark Lord */ 9939b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0Mark Lord for (i = 0; i < timeout; ++i) { 9949b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0Mark Lord u32 edma_stat = readl(port_mmio + EDMA_STATUS_OFS); 9959b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0Mark Lord if ((edma_stat & empty_idle) == empty_idle) 9969b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0Mark Lord break; 9979b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0Mark Lord udelay(per_loop); 9989b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0Mark Lord } 9999b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0Mark Lord /* ata_port_printk(ap, KERN_INFO, "%s: %u+ usecs\n", __func__, i); */ 10009b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0Mark Lord} 10019b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0Mark Lord 100205b308e1df6d9d673daedb517969241f41278b52Brett Russ/** 1003e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord * mv_stop_edma_engine - Disable eDMA engine 1004b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord * @port_mmio: io base address 100505b308e1df6d9d673daedb517969241f41278b52Brett Russ * 100605b308e1df6d9d673daedb517969241f41278b52Brett Russ * LOCKING: 100705b308e1df6d9d673daedb517969241f41278b52Brett Russ * Inherited from caller. 100805b308e1df6d9d673daedb517969241f41278b52Brett Russ */ 1009b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lordstatic int mv_stop_edma_engine(void __iomem *port_mmio) 101020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ{ 1011b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord int i; 101231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 1013b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord /* Disable eDMA. The disable bit auto clears. */ 1014b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord writelfl(EDMA_DS, port_mmio + EDMA_CMD_OFS); 10158b260248d9e0e8b64bb72fd4dee03ad86984c344Jeff Garzik 1016b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord /* Wait for the chip to confirm eDMA is off. */ 1017b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord for (i = 10000; i > 0; i--) { 1018b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord u32 reg = readl(port_mmio + EDMA_CMD_OFS); 10194537deb5e90b717a725b3d74b58b4bb1d28443d0Jeff Garzik if (!(reg & EDMA_EN)) 1020b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord return 0; 1021b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord udelay(10); 102231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ } 1023b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord return -EIO; 102420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ} 102520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 1026e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lordstatic int mv_stop_edma(struct ata_port *ap) 10270ea9e179f436f153fc19fdaef7abbc1e0da20762Jeff Garzik{ 1028b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord void __iomem *port_mmio = mv_ap_base(ap); 1029b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord struct mv_port_priv *pp = ap->private_data; 103066e57a2cb0c538d4f84a7233c224735fe1eaa672Mark Lord int err = 0; 10310ea9e179f436f153fc19fdaef7abbc1e0da20762Jeff Garzik 1032b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord if (!(pp->pp_flags & MV_PP_FLAG_EDMA_EN)) 1033b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord return 0; 1034b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord pp->pp_flags &= ~MV_PP_FLAG_EDMA_EN; 10359b2c4e0bae854fb5e88c9cacc0dacf21631c5cb0Mark Lord mv_wait_for_edma_empty_idle(ap); 1036b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord if (mv_stop_edma_engine(port_mmio)) { 1037b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord ata_port_printk(ap, KERN_ERR, "Unable to stop eDMA\n"); 103866e57a2cb0c538d4f84a7233c224735fe1eaa672Mark Lord err = -EIO; 1039b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord } 104066e57a2cb0c538d4f84a7233c224735fe1eaa672Mark Lord mv_edma_cfg(ap, 0, 0); 104166e57a2cb0c538d4f84a7233c224735fe1eaa672Mark Lord return err; 10420ea9e179f436f153fc19fdaef7abbc1e0da20762Jeff Garzik} 10430ea9e179f436f153fc19fdaef7abbc1e0da20762Jeff Garzik 10448a70f8dc08dd40b7f8ac77280eaa99a8c6bc46f4Jeff Garzik#ifdef ATA_DEBUG 104531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russstatic void mv_dump_mem(void __iomem *start, unsigned bytes) 104620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ{ 104731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ int b, w; 104831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ for (b = 0; b < bytes; ) { 104931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ DPRINTK("%p: ", start + b); 105031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ for (w = 0; b < bytes && w < 4; w++) { 10512dcb407e61458ded17503d6bd12b8c064965368bJeff Garzik printk("%08x ", readl(start + b)); 105231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ b += sizeof(u32); 105331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ } 105431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ printk("\n"); 105531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ } 105631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ} 10578a70f8dc08dd40b7f8ac77280eaa99a8c6bc46f4Jeff Garzik#endif 10588a70f8dc08dd40b7f8ac77280eaa99a8c6bc46f4Jeff Garzik 105931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russstatic void mv_dump_pci_cfg(struct pci_dev *pdev, unsigned bytes) 106031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ{ 106131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ#ifdef ATA_DEBUG 106231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ int b, w; 106331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ u32 dw; 106431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ for (b = 0; b < bytes; ) { 106531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ DPRINTK("%02x: ", b); 106631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ for (w = 0; b < bytes && w < 4; w++) { 10672dcb407e61458ded17503d6bd12b8c064965368bJeff Garzik (void) pci_read_config_dword(pdev, b, &dw); 10682dcb407e61458ded17503d6bd12b8c064965368bJeff Garzik printk("%08x ", dw); 106931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ b += sizeof(u32); 107031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ } 107131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ printk("\n"); 107231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ } 107331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ#endif 107431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ} 107531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russstatic void mv_dump_all_regs(void __iomem *mmio_base, int port, 107631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ struct pci_dev *pdev) 107731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ{ 107831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ#ifdef ATA_DEBUG 10798b260248d9e0e8b64bb72fd4dee03ad86984c344Jeff Garzik void __iomem *hc_base = mv_hc_base(mmio_base, 108031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ port >> MV_PORT_HC_SHIFT); 108131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ void __iomem *port_base; 108231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ int start_port, num_ports, p, start_hc, num_hcs, hc; 108331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 108431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ if (0 > port) { 108531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ start_hc = start_port = 0; 108631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ num_ports = 8; /* shld be benign for 4 port devs */ 108731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ num_hcs = 2; 108831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ } else { 108931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ start_hc = port >> MV_PORT_HC_SHIFT; 109031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ start_port = port; 109131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ num_ports = num_hcs = 1; 109231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ } 10938b260248d9e0e8b64bb72fd4dee03ad86984c344Jeff Garzik DPRINTK("All registers for port(s) %u-%u:\n", start_port, 109431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ num_ports > 1 ? num_ports - 1 : start_port); 109531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 109631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ if (NULL != pdev) { 109731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ DPRINTK("PCI config space regs:\n"); 109831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_dump_pci_cfg(pdev, 0x68); 109931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ } 110031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ DPRINTK("PCI regs:\n"); 110131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_dump_mem(mmio_base+0xc00, 0x3c); 110231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_dump_mem(mmio_base+0xd00, 0x34); 110331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_dump_mem(mmio_base+0xf00, 0x4); 110431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_dump_mem(mmio_base+0x1d00, 0x6c); 110531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ for (hc = start_hc; hc < start_hc + num_hcs; hc++) { 1106d220c37e0a3c9a47ae00e87e044d963b3ea040bcDan Aloni hc_base = mv_hc_base(mmio_base, hc); 110731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ DPRINTK("HC regs (HC %i):\n", hc); 110831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_dump_mem(hc_base, 0x1c); 110931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ } 111031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ for (p = start_port; p < start_port + num_ports; p++) { 111131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ port_base = mv_port_base(mmio_base, p); 11122dcb407e61458ded17503d6bd12b8c064965368bJeff Garzik DPRINTK("EDMA regs (port %i):\n", p); 111331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_dump_mem(port_base, 0x54); 11142dcb407e61458ded17503d6bd12b8c064965368bJeff Garzik DPRINTK("SATA regs (port %i):\n", p); 111531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_dump_mem(port_base+0x300, 0x60); 111631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ } 111731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ#endif 111820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ} 111920f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 112020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russstatic unsigned int mv_scr_offset(unsigned int sc_reg_in) 112120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ{ 112220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ unsigned int ofs; 112320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 112420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ switch (sc_reg_in) { 112520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ case SCR_STATUS: 112620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ case SCR_CONTROL: 112720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ case SCR_ERROR: 112820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ ofs = SATA_STATUS_OFS + (sc_reg_in * sizeof(u32)); 112920f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ break; 113020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ case SCR_ACTIVE: 113120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ ofs = SATA_ACTIVE_OFS; /* active is not with the others */ 113220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ break; 113320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ default: 113420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ ofs = 0xffffffffU; 113520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ break; 113620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ } 113720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ return ofs; 113820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ} 113920f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 114082ef04fb4c82542b3eda81cca461f0594ce9cd0bTejun Heostatic int mv_scr_read(struct ata_link *link, unsigned int sc_reg_in, u32 *val) 114120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ{ 114220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ unsigned int ofs = mv_scr_offset(sc_reg_in); 114320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 1144da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo if (ofs != 0xffffffffU) { 114582ef04fb4c82542b3eda81cca461f0594ce9cd0bTejun Heo *val = readl(mv_ap_base(link->ap) + ofs); 1146da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo return 0; 1147da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo } else 1148da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo return -EINVAL; 114920f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ} 115020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 115182ef04fb4c82542b3eda81cca461f0594ce9cd0bTejun Heostatic int mv_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val) 115220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ{ 115320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ unsigned int ofs = mv_scr_offset(sc_reg_in); 115420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 1155da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo if (ofs != 0xffffffffU) { 115682ef04fb4c82542b3eda81cca461f0594ce9cd0bTejun Heo writelfl(val, mv_ap_base(link->ap) + ofs); 1157da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo return 0; 1158da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo } else 1159da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo return -EINVAL; 116020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ} 116120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 1162f273827e2aadcf2f74a7bdc9ad715a1b20ea7ddaMark Lordstatic void mv6_dev_config(struct ata_device *adev) 1163f273827e2aadcf2f74a7bdc9ad715a1b20ea7ddaMark Lord{ 1164f273827e2aadcf2f74a7bdc9ad715a1b20ea7ddaMark Lord /* 1165e49856d82a887ce365637176f9f99ab68076eae8Mark Lord * Deal with Gen-II ("mv6") hardware quirks/restrictions: 1166e49856d82a887ce365637176f9f99ab68076eae8Mark Lord * 1167e49856d82a887ce365637176f9f99ab68076eae8Mark Lord * Gen-II does not support NCQ over a port multiplier 1168e49856d82a887ce365637176f9f99ab68076eae8Mark Lord * (no FIS-based switching). 1169f273827e2aadcf2f74a7bdc9ad715a1b20ea7ddaMark Lord */ 1170e49856d82a887ce365637176f9f99ab68076eae8Mark Lord if (adev->flags & ATA_DFLAG_NCQ) { 1171352fab701ca4753dd005b67ce5e512be944eb591Mark Lord if (sata_pmp_attached(adev->link->ap)) { 1172e49856d82a887ce365637176f9f99ab68076eae8Mark Lord adev->flags &= ~ATA_DFLAG_NCQ; 1173352fab701ca4753dd005b67ce5e512be944eb591Mark Lord ata_dev_printk(adev, KERN_INFO, 1174352fab701ca4753dd005b67ce5e512be944eb591Mark Lord "NCQ disabled for command-based switching\n"); 1175352fab701ca4753dd005b67ce5e512be944eb591Mark Lord } 1176e49856d82a887ce365637176f9f99ab68076eae8Mark Lord } 1177f273827e2aadcf2f74a7bdc9ad715a1b20ea7ddaMark Lord} 1178f273827e2aadcf2f74a7bdc9ad715a1b20ea7ddaMark Lord 11793e4a139107e497a741c26f8a377a10f214d63ec1Mark Lordstatic int mv_qc_defer(struct ata_queued_cmd *qc) 11803e4a139107e497a741c26f8a377a10f214d63ec1Mark Lord{ 11813e4a139107e497a741c26f8a377a10f214d63ec1Mark Lord struct ata_link *link = qc->dev->link; 11823e4a139107e497a741c26f8a377a10f214d63ec1Mark Lord struct ata_port *ap = link->ap; 11833e4a139107e497a741c26f8a377a10f214d63ec1Mark Lord struct mv_port_priv *pp = ap->private_data; 11843e4a139107e497a741c26f8a377a10f214d63ec1Mark Lord 11853e4a139107e497a741c26f8a377a10f214d63ec1Mark Lord /* 118629d187bb1e30682e228ce461c487d78d945c3e4fMark Lord * Don't allow new commands if we're in a delayed EH state 118729d187bb1e30682e228ce461c487d78d945c3e4fMark Lord * for NCQ and/or FIS-based switching. 118829d187bb1e30682e228ce461c487d78d945c3e4fMark Lord */ 118929d187bb1e30682e228ce461c487d78d945c3e4fMark Lord if (pp->pp_flags & MV_PP_FLAG_DELAYED_EH) 119029d187bb1e30682e228ce461c487d78d945c3e4fMark Lord return ATA_DEFER_PORT; 119129d187bb1e30682e228ce461c487d78d945c3e4fMark Lord /* 11923e4a139107e497a741c26f8a377a10f214d63ec1Mark Lord * If the port is completely idle, then allow the new qc. 11933e4a139107e497a741c26f8a377a10f214d63ec1Mark Lord */ 11943e4a139107e497a741c26f8a377a10f214d63ec1Mark Lord if (ap->nr_active_links == 0) 11953e4a139107e497a741c26f8a377a10f214d63ec1Mark Lord return 0; 11963e4a139107e497a741c26f8a377a10f214d63ec1Mark Lord 11974bdee6c5103696a2729d3db2f235d202191788e4Tejun Heo /* 11984bdee6c5103696a2729d3db2f235d202191788e4Tejun Heo * The port is operating in host queuing mode (EDMA) with NCQ 11994bdee6c5103696a2729d3db2f235d202191788e4Tejun Heo * enabled, allow multiple NCQ commands. EDMA also allows 12004bdee6c5103696a2729d3db2f235d202191788e4Tejun Heo * queueing multiple DMA commands but libata core currently 12014bdee6c5103696a2729d3db2f235d202191788e4Tejun Heo * doesn't allow it. 12024bdee6c5103696a2729d3db2f235d202191788e4Tejun Heo */ 12034bdee6c5103696a2729d3db2f235d202191788e4Tejun Heo if ((pp->pp_flags & MV_PP_FLAG_EDMA_EN) && 12044bdee6c5103696a2729d3db2f235d202191788e4Tejun Heo (pp->pp_flags & MV_PP_FLAG_NCQ_EN) && ata_is_ncq(qc->tf.protocol)) 12054bdee6c5103696a2729d3db2f235d202191788e4Tejun Heo return 0; 12064bdee6c5103696a2729d3db2f235d202191788e4Tejun Heo 12073e4a139107e497a741c26f8a377a10f214d63ec1Mark Lord return ATA_DEFER_PORT; 12083e4a139107e497a741c26f8a377a10f214d63ec1Mark Lord} 12093e4a139107e497a741c26f8a377a10f214d63ec1Mark Lord 121008da175937a35d34a83eaefbb3458472eb1a89d4Mark Lordstatic void mv_config_fbs(struct ata_port *ap, int want_ncq, int want_fbs) 1211e49856d82a887ce365637176f9f99ab68076eae8Mark Lord{ 121208da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord struct mv_port_priv *pp = ap->private_data; 121308da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord void __iomem *port_mmio; 121400f42eabb204c68fa64ef72de834e74aca15c81fMark Lord 121508da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord u32 fiscfg, *old_fiscfg = &pp->cached.fiscfg; 121608da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord u32 ltmode, *old_ltmode = &pp->cached.ltmode; 121708da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord u32 haltcond, *old_haltcond = &pp->cached.haltcond; 121800f42eabb204c68fa64ef72de834e74aca15c81fMark Lord 121908da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord ltmode = *old_ltmode & ~LTMODE_BIT8; 122008da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord haltcond = *old_haltcond | EDMA_ERR_DEV; 122100f42eabb204c68fa64ef72de834e74aca15c81fMark Lord 122200f42eabb204c68fa64ef72de834e74aca15c81fMark Lord if (want_fbs) { 122308da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord fiscfg = *old_fiscfg | FISCFG_SINGLE_SYNC; 122408da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord ltmode = *old_ltmode | LTMODE_BIT8; 12254c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord if (want_ncq) 122608da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord haltcond &= ~EDMA_ERR_DEV; 12274c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord else 122808da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord fiscfg |= FISCFG_WAIT_DEV_ERR; 122908da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord } else { 123008da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord fiscfg = *old_fiscfg & ~(FISCFG_SINGLE_SYNC | FISCFG_WAIT_DEV_ERR); 1231e49856d82a887ce365637176f9f99ab68076eae8Mark Lord } 123200f42eabb204c68fa64ef72de834e74aca15c81fMark Lord 123308da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord port_mmio = mv_ap_base(ap); 123408da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord mv_write_cached_reg(port_mmio + FISCFG_OFS, old_fiscfg, fiscfg); 123508da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord mv_write_cached_reg(port_mmio + LTMODE_OFS, old_ltmode, ltmode); 123608da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord mv_write_cached_reg(port_mmio + EDMA_HALTCOND_OFS, old_haltcond, haltcond); 1237f273827e2aadcf2f74a7bdc9ad715a1b20ea7ddaMark Lord} 1238f273827e2aadcf2f74a7bdc9ad715a1b20ea7ddaMark Lord 1239dd2890f60f8e15f14c8eb132779b2f15c49d1203Mark Lordstatic void mv_60x1_errata_sata25(struct ata_port *ap, int want_ncq) 1240dd2890f60f8e15f14c8eb132779b2f15c49d1203Mark Lord{ 1241dd2890f60f8e15f14c8eb132779b2f15c49d1203Mark Lord struct mv_host_priv *hpriv = ap->host->private_data; 1242dd2890f60f8e15f14c8eb132779b2f15c49d1203Mark Lord u32 old, new; 1243dd2890f60f8e15f14c8eb132779b2f15c49d1203Mark Lord 1244dd2890f60f8e15f14c8eb132779b2f15c49d1203Mark Lord /* workaround for 88SX60x1 FEr SATA#25 (part 1) */ 1245dd2890f60f8e15f14c8eb132779b2f15c49d1203Mark Lord old = readl(hpriv->base + MV_GPIO_PORT_CTL_OFS); 1246dd2890f60f8e15f14c8eb132779b2f15c49d1203Mark Lord if (want_ncq) 1247dd2890f60f8e15f14c8eb132779b2f15c49d1203Mark Lord new = old | (1 << 22); 1248dd2890f60f8e15f14c8eb132779b2f15c49d1203Mark Lord else 1249dd2890f60f8e15f14c8eb132779b2f15c49d1203Mark Lord new = old & ~(1 << 22); 1250dd2890f60f8e15f14c8eb132779b2f15c49d1203Mark Lord if (new != old) 1251dd2890f60f8e15f14c8eb132779b2f15c49d1203Mark Lord writel(new, hpriv->base + MV_GPIO_PORT_CTL_OFS); 1252dd2890f60f8e15f14c8eb132779b2f15c49d1203Mark Lord} 1253dd2890f60f8e15f14c8eb132779b2f15c49d1203Mark Lord 1254c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord/** 1255c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord * mv_bmdma_enable - set a magic bit on GEN_IIE to allow bmdma 1256c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord * @ap: Port being initialized 1257c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord * 1258c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord * There are two DMA modes on these chips: basic DMA, and EDMA. 1259c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord * 1260c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord * Bit-0 of the "EDMA RESERVED" register enables/disables use 1261c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord * of basic DMA on the GEN_IIE versions of the chips. 1262c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord * 1263c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord * This bit survives EDMA resets, and must be set for basic DMA 1264c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord * to function, and should be cleared when EDMA is active. 1265c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord */ 1266c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lordstatic void mv_bmdma_enable_iie(struct ata_port *ap, int enable_bmdma) 1267c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord{ 1268c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord struct mv_port_priv *pp = ap->private_data; 1269c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord u32 new, *old = &pp->cached.unknown_rsvd; 1270c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord 1271c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord if (enable_bmdma) 1272c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord new = *old | 1; 1273c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord else 1274c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord new = *old & ~1; 1275c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord mv_write_cached_reg(mv_ap_base(ap) + EDMA_UNKNOWN_RSVD_OFS, old, new); 1276c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord} 1277c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord 127800b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lordstatic void mv_edma_cfg(struct ata_port *ap, int want_ncq, int want_edma) 1279e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik{ 12800c58912e192fc3a4835d772aafa40b72552b819fMark Lord u32 cfg; 1281e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord struct mv_port_priv *pp = ap->private_data; 1282e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord struct mv_host_priv *hpriv = ap->host->private_data; 1283e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord void __iomem *port_mmio = mv_ap_base(ap); 1284e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik 1285e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik /* set up non-NCQ EDMA configuration */ 12860c58912e192fc3a4835d772aafa40b72552b819fMark Lord cfg = EDMA_CFG_Q_DEPTH; /* always 0x1f for *all* chips */ 128700b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord pp->pp_flags &= ~(MV_PP_FLAG_FBS_EN | MV_PP_FLAG_NCQ_EN); 1288e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik 12890c58912e192fc3a4835d772aafa40b72552b819fMark Lord if (IS_GEN_I(hpriv)) 1290e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik cfg |= (1 << 8); /* enab config burst size mask */ 1291e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik 1292dd2890f60f8e15f14c8eb132779b2f15c49d1203Mark Lord else if (IS_GEN_II(hpriv)) { 1293e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik cfg |= EDMA_CFG_RD_BRST_EXT | EDMA_CFG_WR_BUFF_LEN; 1294dd2890f60f8e15f14c8eb132779b2f15c49d1203Mark Lord mv_60x1_errata_sata25(ap, want_ncq); 1295e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik 1296dd2890f60f8e15f14c8eb132779b2f15c49d1203Mark Lord } else if (IS_GEN_IIE(hpriv)) { 129700f42eabb204c68fa64ef72de834e74aca15c81fMark Lord int want_fbs = sata_pmp_attached(ap); 129800f42eabb204c68fa64ef72de834e74aca15c81fMark Lord /* 129900f42eabb204c68fa64ef72de834e74aca15c81fMark Lord * Possible future enhancement: 130000f42eabb204c68fa64ef72de834e74aca15c81fMark Lord * 130100f42eabb204c68fa64ef72de834e74aca15c81fMark Lord * The chip can use FBS with non-NCQ, if we allow it, 130200f42eabb204c68fa64ef72de834e74aca15c81fMark Lord * But first we need to have the error handling in place 130300f42eabb204c68fa64ef72de834e74aca15c81fMark Lord * for this mode (datasheet section 7.3.15.4.2.3). 130400f42eabb204c68fa64ef72de834e74aca15c81fMark Lord * So disallow non-NCQ FBS for now. 130500f42eabb204c68fa64ef72de834e74aca15c81fMark Lord */ 130600f42eabb204c68fa64ef72de834e74aca15c81fMark Lord want_fbs &= want_ncq; 130700f42eabb204c68fa64ef72de834e74aca15c81fMark Lord 130808da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord mv_config_fbs(ap, want_ncq, want_fbs); 130900f42eabb204c68fa64ef72de834e74aca15c81fMark Lord 131000f42eabb204c68fa64ef72de834e74aca15c81fMark Lord if (want_fbs) { 131100f42eabb204c68fa64ef72de834e74aca15c81fMark Lord pp->pp_flags |= MV_PP_FLAG_FBS_EN; 131200f42eabb204c68fa64ef72de834e74aca15c81fMark Lord cfg |= EDMA_CFG_EDMA_FBS; /* FIS-based switching */ 131300f42eabb204c68fa64ef72de834e74aca15c81fMark Lord } 131400f42eabb204c68fa64ef72de834e74aca15c81fMark Lord 1315e728eabea110da90e69c05855e3a11174edb77efJeff Garzik cfg |= (1 << 23); /* do not mask PM field in rx'd FIS */ 131600b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord if (want_edma) { 131700b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord cfg |= (1 << 22); /* enab 4-entry host queue cache */ 131800b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord if (!IS_SOC(hpriv)) 131900b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord cfg |= (1 << 18); /* enab early completion */ 132000b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord } 1321616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord if (hpriv->hp_flags & MV_HP_CUT_THROUGH) 1322616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord cfg |= (1 << 17); /* enab cut-thru (dis stor&forwrd) */ 1323c01e8a23128c746f23088db836bd4c820f3eb0b4Mark Lord mv_bmdma_enable_iie(ap, !want_edma); 1324e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik } 1325e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik 1326721091685f853ba4e6c49f26f989db0b1a811250Mark Lord if (want_ncq) { 1327721091685f853ba4e6c49f26f989db0b1a811250Mark Lord cfg |= EDMA_CFG_NCQ; 1328721091685f853ba4e6c49f26f989db0b1a811250Mark Lord pp->pp_flags |= MV_PP_FLAG_NCQ_EN; 132900b81235aa0368f84c0e704bec4142cd8c516ad5Mark Lord } 1330721091685f853ba4e6c49f26f989db0b1a811250Mark Lord 1331e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik writelfl(cfg, port_mmio + EDMA_CFG_OFS); 1332e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik} 1333e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik 1334da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lordstatic void mv_port_free_dma_mem(struct ata_port *ap) 1335da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord{ 1336da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord struct mv_host_priv *hpriv = ap->host->private_data; 1337da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord struct mv_port_priv *pp = ap->private_data; 1338eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord int tag; 1339da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord 1340da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord if (pp->crqb) { 1341da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord dma_pool_free(hpriv->crqb_pool, pp->crqb, pp->crqb_dma); 1342da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord pp->crqb = NULL; 1343da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord } 1344da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord if (pp->crpb) { 1345da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord dma_pool_free(hpriv->crpb_pool, pp->crpb, pp->crpb_dma); 1346da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord pp->crpb = NULL; 1347da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord } 1348eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord /* 1349eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord * For GEN_I, there's no NCQ, so we have only a single sg_tbl. 1350eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord * For later hardware, we have one unique sg_tbl per NCQ tag. 1351eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord */ 1352eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord for (tag = 0; tag < MV_MAX_Q_DEPTH; ++tag) { 1353eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord if (pp->sg_tbl[tag]) { 1354eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord if (tag == 0 || !IS_GEN_I(hpriv)) 1355eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord dma_pool_free(hpriv->sg_tbl_pool, 1356eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord pp->sg_tbl[tag], 1357eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord pp->sg_tbl_dma[tag]); 1358eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord pp->sg_tbl[tag] = NULL; 1359eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord } 1360da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord } 1361da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord} 1362da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord 136305b308e1df6d9d673daedb517969241f41278b52Brett Russ/** 136405b308e1df6d9d673daedb517969241f41278b52Brett Russ * mv_port_start - Port specific init/start routine. 136505b308e1df6d9d673daedb517969241f41278b52Brett Russ * @ap: ATA channel to manipulate 136605b308e1df6d9d673daedb517969241f41278b52Brett Russ * 136705b308e1df6d9d673daedb517969241f41278b52Brett Russ * Allocate and point to DMA memory, init port private memory, 136805b308e1df6d9d673daedb517969241f41278b52Brett Russ * zero indices. 136905b308e1df6d9d673daedb517969241f41278b52Brett Russ * 137005b308e1df6d9d673daedb517969241f41278b52Brett Russ * LOCKING: 137105b308e1df6d9d673daedb517969241f41278b52Brett Russ * Inherited from caller. 137205b308e1df6d9d673daedb517969241f41278b52Brett Russ */ 137331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russstatic int mv_port_start(struct ata_port *ap) 137431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ{ 1375cca3974e48607c3775dc73b544a5700b2e37c21aJeff Garzik struct device *dev = ap->host->dev; 1376cca3974e48607c3775dc73b544a5700b2e37c21aJeff Garzik struct mv_host_priv *hpriv = ap->host->private_data; 137731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ struct mv_port_priv *pp; 1378dde2020754aeb14e17052d61784dcb37f252aac2James Bottomley int tag; 137931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 138024dc5f33ea4b504cfbd23fa159a4cacba8e4d800Tejun Heo pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL); 13816037d6bbdff65eb5a84fe35e140f4da4f7cc103aJeff Garzik if (!pp) 138224dc5f33ea4b504cfbd23fa159a4cacba8e4d800Tejun Heo return -ENOMEM; 1383da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord ap->private_data = pp; 138431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 1385da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord pp->crqb = dma_pool_alloc(hpriv->crqb_pool, GFP_KERNEL, &pp->crqb_dma); 1386da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord if (!pp->crqb) 1387da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord return -ENOMEM; 1388da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord memset(pp->crqb, 0, MV_CRQB_Q_SZ); 138931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 1390da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord pp->crpb = dma_pool_alloc(hpriv->crpb_pool, GFP_KERNEL, &pp->crpb_dma); 1391da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord if (!pp->crpb) 1392da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord goto out_port_free_dma_mem; 1393da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord memset(pp->crpb, 0, MV_CRPB_Q_SZ); 139431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 13953bd0a70ee9cc30ae81b39cb5ecad0fa7bcb4675bMark Lord /* 6041/6081 Rev. "C0" (and newer) are okay with async notify */ 13963bd0a70ee9cc30ae81b39cb5ecad0fa7bcb4675bMark Lord if (hpriv->hp_flags & MV_HP_ERRATA_60X1C0) 13973bd0a70ee9cc30ae81b39cb5ecad0fa7bcb4675bMark Lord ap->flags |= ATA_FLAG_AN; 1398eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord /* 1399eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord * For GEN_I, there's no NCQ, so we only allocate a single sg_tbl. 1400eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord * For later hardware, we need one unique sg_tbl per NCQ tag. 1401eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord */ 1402eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord for (tag = 0; tag < MV_MAX_Q_DEPTH; ++tag) { 1403eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord if (tag == 0 || !IS_GEN_I(hpriv)) { 1404eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord pp->sg_tbl[tag] = dma_pool_alloc(hpriv->sg_tbl_pool, 1405eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord GFP_KERNEL, &pp->sg_tbl_dma[tag]); 1406eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord if (!pp->sg_tbl[tag]) 1407eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord goto out_port_free_dma_mem; 1408eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord } else { 1409eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord pp->sg_tbl[tag] = pp->sg_tbl[0]; 1410eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord pp->sg_tbl_dma[tag] = pp->sg_tbl_dma[0]; 1411eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord } 1412eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord } 141308da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord mv_save_cached_regs(ap); 141466e57a2cb0c538d4f84a7233c224735fe1eaa672Mark Lord mv_edma_cfg(ap, 0, 0); 141531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ return 0; 1416da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord 1417da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lordout_port_free_dma_mem: 1418da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord mv_port_free_dma_mem(ap); 1419da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord return -ENOMEM; 142031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ} 142131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 142205b308e1df6d9d673daedb517969241f41278b52Brett Russ/** 142305b308e1df6d9d673daedb517969241f41278b52Brett Russ * mv_port_stop - Port specific cleanup/stop routine. 142405b308e1df6d9d673daedb517969241f41278b52Brett Russ * @ap: ATA channel to manipulate 142505b308e1df6d9d673daedb517969241f41278b52Brett Russ * 142605b308e1df6d9d673daedb517969241f41278b52Brett Russ * Stop DMA, cleanup port memory. 142705b308e1df6d9d673daedb517969241f41278b52Brett Russ * 142805b308e1df6d9d673daedb517969241f41278b52Brett Russ * LOCKING: 1429cca3974e48607c3775dc73b544a5700b2e37c21aJeff Garzik * This routine uses the host lock to protect the DMA stop. 143005b308e1df6d9d673daedb517969241f41278b52Brett Russ */ 143131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russstatic void mv_port_stop(struct ata_port *ap) 143231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ{ 1433e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord mv_stop_edma(ap); 143488e675e193159b9891c1c576de4348eaf490f5d0Mark Lord mv_enable_port_irqs(ap, 0); 1435da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord mv_port_free_dma_mem(ap); 143631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ} 143731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 143805b308e1df6d9d673daedb517969241f41278b52Brett Russ/** 143905b308e1df6d9d673daedb517969241f41278b52Brett Russ * mv_fill_sg - Fill out the Marvell ePRD (scatter gather) entries 144005b308e1df6d9d673daedb517969241f41278b52Brett Russ * @qc: queued command whose SG list to source from 144105b308e1df6d9d673daedb517969241f41278b52Brett Russ * 144205b308e1df6d9d673daedb517969241f41278b52Brett Russ * Populate the SG list and mark the last entry. 144305b308e1df6d9d673daedb517969241f41278b52Brett Russ * 144405b308e1df6d9d673daedb517969241f41278b52Brett Russ * LOCKING: 144505b308e1df6d9d673daedb517969241f41278b52Brett Russ * Inherited from caller. 144605b308e1df6d9d673daedb517969241f41278b52Brett Russ */ 14476c08772e49622e90d39903e7ff0be1a0f463ac86Jeff Garzikstatic void mv_fill_sg(struct ata_queued_cmd *qc) 144831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ{ 144931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ struct mv_port_priv *pp = qc->ap->private_data; 1450972c26bdd6b58e7534473c4f7928584578cf43f4Jeff Garzik struct scatterlist *sg; 14513be6cbd73f74b4a3da82cc7d6e1688a4ae595fc7Jeff Garzik struct mv_sg *mv_sg, *last_sg = NULL; 1452ff2aeb1eb64c8a4770a6304f9addbae9f9828646Tejun Heo unsigned int si; 145331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 1454eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord mv_sg = pp->sg_tbl[qc->tag]; 1455ff2aeb1eb64c8a4770a6304f9addbae9f9828646Tejun Heo for_each_sg(qc->sg, sg, qc->n_elem, si) { 1456d88184fb2348a50f7c34f5d49a901c875b2e0114Jeff Garzik dma_addr_t addr = sg_dma_address(sg); 1457d88184fb2348a50f7c34f5d49a901c875b2e0114Jeff Garzik u32 sg_len = sg_dma_len(sg); 145822374677d18c5eeefd3a283431d312b8c44fef02Jeff Garzik 14594007b493ee6e4a52c2b618ab8361847fba5bf116Olof Johansson while (sg_len) { 14604007b493ee6e4a52c2b618ab8361847fba5bf116Olof Johansson u32 offset = addr & 0xffff; 14614007b493ee6e4a52c2b618ab8361847fba5bf116Olof Johansson u32 len = sg_len; 146222374677d18c5eeefd3a283431d312b8c44fef02Jeff Garzik 146332cd11a61007511ddb38783deec8bb1aa6735789Mark Lord if (offset + len > 0x10000) 14644007b493ee6e4a52c2b618ab8361847fba5bf116Olof Johansson len = 0x10000 - offset; 14654007b493ee6e4a52c2b618ab8361847fba5bf116Olof Johansson 14664007b493ee6e4a52c2b618ab8361847fba5bf116Olof Johansson mv_sg->addr = cpu_to_le32(addr & 0xffffffff); 14674007b493ee6e4a52c2b618ab8361847fba5bf116Olof Johansson mv_sg->addr_hi = cpu_to_le32((addr >> 16) >> 16); 14686c08772e49622e90d39903e7ff0be1a0f463ac86Jeff Garzik mv_sg->flags_size = cpu_to_le32(len & 0xffff); 146932cd11a61007511ddb38783deec8bb1aa6735789Mark Lord mv_sg->reserved = 0; 14704007b493ee6e4a52c2b618ab8361847fba5bf116Olof Johansson 14714007b493ee6e4a52c2b618ab8361847fba5bf116Olof Johansson sg_len -= len; 14724007b493ee6e4a52c2b618ab8361847fba5bf116Olof Johansson addr += len; 14734007b493ee6e4a52c2b618ab8361847fba5bf116Olof Johansson 14743be6cbd73f74b4a3da82cc7d6e1688a4ae595fc7Jeff Garzik last_sg = mv_sg; 14754007b493ee6e4a52c2b618ab8361847fba5bf116Olof Johansson mv_sg++; 14764007b493ee6e4a52c2b618ab8361847fba5bf116Olof Johansson } 147731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ } 14783be6cbd73f74b4a3da82cc7d6e1688a4ae595fc7Jeff Garzik 14793be6cbd73f74b4a3da82cc7d6e1688a4ae595fc7Jeff Garzik if (likely(last_sg)) 14803be6cbd73f74b4a3da82cc7d6e1688a4ae595fc7Jeff Garzik last_sg->flags_size |= cpu_to_le32(EPRD_FLAG_END_OF_TBL); 148132cd11a61007511ddb38783deec8bb1aa6735789Mark Lord mb(); /* ensure data structure is visible to the chipset */ 148231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ} 148331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 14845796d1c4c89efff823259fda35b08ea66ebf8b23Jeff Garzikstatic void mv_crqb_pack_cmd(__le16 *cmdw, u8 data, u8 addr, unsigned last) 148531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ{ 1486559eedad7f7764dacca33980127b4615011230e4Mark Lord u16 tmp = data | (addr << CRQB_CMD_ADDR_SHIFT) | CRQB_CMD_CS | 148731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ (last ? CRQB_CMD_LAST : 0); 1488559eedad7f7764dacca33980127b4615011230e4Mark Lord *cmdw = cpu_to_le16(tmp); 148931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ} 149031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 149105b308e1df6d9d673daedb517969241f41278b52Brett Russ/** 1492da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * mv_sff_irq_clear - Clear hardware interrupt after DMA. 1493da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * @ap: Port associated with this ATA transaction. 1494da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * 1495da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * We need this only for ATAPI bmdma transactions, 1496da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * as otherwise we experience spurious interrupts 1497da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * after libata-sff handles the bmdma interrupts. 1498da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord */ 1499da14265e776f35067045b8555b5f5f7521e50bc4Mark Lordstatic void mv_sff_irq_clear(struct ata_port *ap) 1500da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord{ 1501da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord mv_clear_and_enable_port_irqs(ap, mv_ap_base(ap), ERR_IRQ); 1502da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord} 1503da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord 1504da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord/** 1505da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * mv_check_atapi_dma - Filter ATAPI cmds which are unsuitable for DMA. 1506da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * @qc: queued command to check for chipset/DMA compatibility. 1507da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * 1508da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * The bmdma engines cannot handle speculative data sizes 1509da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * (bytecount under/over flow). So only allow DMA for 1510da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * data transfer commands with known data sizes. 1511da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * 1512da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * LOCKING: 1513da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * Inherited from caller. 1514da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord */ 1515da14265e776f35067045b8555b5f5f7521e50bc4Mark Lordstatic int mv_check_atapi_dma(struct ata_queued_cmd *qc) 1516da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord{ 1517da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord struct scsi_cmnd *scmd = qc->scsicmd; 1518da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord 1519da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord if (scmd) { 1520da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord switch (scmd->cmnd[0]) { 1521da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord case READ_6: 1522da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord case READ_10: 1523da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord case READ_12: 1524da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord case WRITE_6: 1525da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord case WRITE_10: 1526da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord case WRITE_12: 1527da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord case GPCMD_READ_CD: 1528da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord case GPCMD_SEND_DVD_STRUCTURE: 1529da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord case GPCMD_SEND_CUE_SHEET: 1530da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord return 0; /* DMA is safe */ 1531da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord } 1532da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord } 1533da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord return -EOPNOTSUPP; /* use PIO instead */ 1534da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord} 1535da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord 1536da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord/** 1537da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * mv_bmdma_setup - Set up BMDMA transaction 1538da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * @qc: queued command to prepare DMA for. 1539da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * 1540da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * LOCKING: 1541da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * Inherited from caller. 1542da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord */ 1543da14265e776f35067045b8555b5f5f7521e50bc4Mark Lordstatic void mv_bmdma_setup(struct ata_queued_cmd *qc) 1544da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord{ 1545da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord struct ata_port *ap = qc->ap; 1546da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord void __iomem *port_mmio = mv_ap_base(ap); 1547da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord struct mv_port_priv *pp = ap->private_data; 1548da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord 1549da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord mv_fill_sg(qc); 1550da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord 1551da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord /* clear all DMA cmd bits */ 1552da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord writel(0, port_mmio + BMDMA_CMD_OFS); 1553da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord 1554da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord /* load PRD table addr. */ 1555da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord writel((pp->sg_tbl_dma[qc->tag] >> 16) >> 16, 1556da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord port_mmio + BMDMA_PRD_HIGH_OFS); 1557da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord writelfl(pp->sg_tbl_dma[qc->tag], 1558da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord port_mmio + BMDMA_PRD_LOW_OFS); 1559da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord 1560da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord /* issue r/w command */ 1561da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord ap->ops->sff_exec_command(ap, &qc->tf); 1562da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord} 1563da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord 1564da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord/** 1565da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * mv_bmdma_start - Start a BMDMA transaction 1566da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * @qc: queued command to start DMA on. 1567da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * 1568da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * LOCKING: 1569da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * Inherited from caller. 1570da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord */ 1571da14265e776f35067045b8555b5f5f7521e50bc4Mark Lordstatic void mv_bmdma_start(struct ata_queued_cmd *qc) 1572da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord{ 1573da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord struct ata_port *ap = qc->ap; 1574da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord void __iomem *port_mmio = mv_ap_base(ap); 1575da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord unsigned int rw = (qc->tf.flags & ATA_TFLAG_WRITE); 1576da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord u32 cmd = (rw ? 0 : ATA_DMA_WR) | ATA_DMA_START; 1577da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord 1578da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord /* start host DMA transaction */ 1579da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord writelfl(cmd, port_mmio + BMDMA_CMD_OFS); 1580da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord} 1581da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord 1582da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord/** 1583da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * mv_bmdma_stop - Stop BMDMA transfer 1584da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * @qc: queued command to stop DMA on. 1585da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * 1586da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * Clears the ATA_DMA_START flag in the bmdma control register 1587da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * 1588da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * LOCKING: 1589da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * Inherited from caller. 1590da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord */ 1591da14265e776f35067045b8555b5f5f7521e50bc4Mark Lordstatic void mv_bmdma_stop(struct ata_queued_cmd *qc) 1592da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord{ 1593da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord struct ata_port *ap = qc->ap; 1594da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord void __iomem *port_mmio = mv_ap_base(ap); 1595da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord u32 cmd; 1596da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord 1597da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord /* clear start/stop bit */ 1598da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord cmd = readl(port_mmio + BMDMA_CMD_OFS); 1599da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord cmd &= ~ATA_DMA_START; 1600da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord writelfl(cmd, port_mmio + BMDMA_CMD_OFS); 1601da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord 1602da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord /* one-PIO-cycle guaranteed wait, per spec, for HDMA1:0 transition */ 1603da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord ata_sff_dma_pause(ap); 1604da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord} 1605da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord 1606da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord/** 1607da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * mv_bmdma_status - Read BMDMA status 1608da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * @ap: port for which to retrieve DMA status. 1609da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * 1610da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * Read and return equivalent of the sff BMDMA status register. 1611da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * 1612da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * LOCKING: 1613da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * Inherited from caller. 1614da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord */ 1615da14265e776f35067045b8555b5f5f7521e50bc4Mark Lordstatic u8 mv_bmdma_status(struct ata_port *ap) 1616da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord{ 1617da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord void __iomem *port_mmio = mv_ap_base(ap); 1618da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord u32 reg, status; 1619da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord 1620da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord /* 1621da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * Other bits are valid only if ATA_DMA_ACTIVE==0, 1622da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord * and the ATA_DMA_INTR bit doesn't exist. 1623da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord */ 1624da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord reg = readl(port_mmio + BMDMA_STATUS_OFS); 1625da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord if (reg & ATA_DMA_ACTIVE) 1626da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord status = ATA_DMA_ACTIVE; 1627da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord else 1628da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord status = (reg & ATA_DMA_ERR) | ATA_DMA_INTR; 1629da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord return status; 1630da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord} 1631da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord 1632da14265e776f35067045b8555b5f5f7521e50bc4Mark Lord/** 163305b308e1df6d9d673daedb517969241f41278b52Brett Russ * mv_qc_prep - Host specific command preparation. 163405b308e1df6d9d673daedb517969241f41278b52Brett Russ * @qc: queued command to prepare 163505b308e1df6d9d673daedb517969241f41278b52Brett Russ * 163605b308e1df6d9d673daedb517969241f41278b52Brett Russ * This routine simply redirects to the general purpose routine 163705b308e1df6d9d673daedb517969241f41278b52Brett Russ * if command is not DMA. Else, it handles prep of the CRQB 163805b308e1df6d9d673daedb517969241f41278b52Brett Russ * (command request block), does some sanity checking, and calls 163905b308e1df6d9d673daedb517969241f41278b52Brett Russ * the SG load routine. 164005b308e1df6d9d673daedb517969241f41278b52Brett Russ * 164105b308e1df6d9d673daedb517969241f41278b52Brett Russ * LOCKING: 164205b308e1df6d9d673daedb517969241f41278b52Brett Russ * Inherited from caller. 164305b308e1df6d9d673daedb517969241f41278b52Brett Russ */ 164431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russstatic void mv_qc_prep(struct ata_queued_cmd *qc) 164531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ{ 164631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ struct ata_port *ap = qc->ap; 164731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ struct mv_port_priv *pp = ap->private_data; 1648e14698745dd0de1ddbf5cd0cca4313a90f8c1cc1Mark Lord __le16 *cw; 164931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ struct ata_taskfile *tf; 165031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ u16 flags = 0; 1651a6432436c5e14b416f27c8f87c5bf0bc36771f49Mark Lord unsigned in_index; 165231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 1653138bfdd03f2c08cc62b6af3900fb7be1c696315bMark Lord if ((qc->tf.protocol != ATA_PROT_DMA) && 1654138bfdd03f2c08cc62b6af3900fb7be1c696315bMark Lord (qc->tf.protocol != ATA_PROT_NCQ)) 165531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ return; 165620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 165731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ /* Fill in command request block 165831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ */ 1659e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik if (!(qc->tf.flags & ATA_TFLAG_WRITE)) 166031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ flags |= CRQB_FLAG_READ; 1661beec7dbc6ff003bbc94de62b3323519c878fb2acTejun Heo WARN_ON(MV_MAX_Q_DEPTH <= qc->tag); 166231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ flags |= qc->tag << CRQB_TAG_SHIFT; 1663e49856d82a887ce365637176f9f99ab68076eae8Mark Lord flags |= (qc->dev->link->pmp & 0xf) << CRQB_PMP_SHIFT; 166431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 1665bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik /* get current queue index from software */ 1666fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord in_index = pp->req_idx; 1667a6432436c5e14b416f27c8f87c5bf0bc36771f49Mark Lord 1668a6432436c5e14b416f27c8f87c5bf0bc36771f49Mark Lord pp->crqb[in_index].sg_addr = 1669eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord cpu_to_le32(pp->sg_tbl_dma[qc->tag] & 0xffffffff); 1670a6432436c5e14b416f27c8f87c5bf0bc36771f49Mark Lord pp->crqb[in_index].sg_addr_hi = 1671eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord cpu_to_le32((pp->sg_tbl_dma[qc->tag] >> 16) >> 16); 1672a6432436c5e14b416f27c8f87c5bf0bc36771f49Mark Lord pp->crqb[in_index].ctrl_flags = cpu_to_le16(flags); 167331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 1674a6432436c5e14b416f27c8f87c5bf0bc36771f49Mark Lord cw = &pp->crqb[in_index].ata_cmd[0]; 167531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ tf = &qc->tf; 167631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 167731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ /* Sadly, the CRQB cannot accomodate all registers--there are 167831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ * only 11 bytes...so we must pick and choose required 167931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ * registers based on the command. So, we drop feature and 168031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ * hob_feature for [RW] DMA commands, but they are needed for 1681cd12e1f7a2c28917c89d65c0d4a52d3919b4c125Mark Lord * NCQ. NCQ will drop hob_nsect, which is not needed there 1682cd12e1f7a2c28917c89d65c0d4a52d3919b4c125Mark Lord * (nsect is used only for the tag; feat/hob_feat hold true nsect). 168320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ */ 168431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ switch (tf->command) { 168531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ case ATA_CMD_READ: 168631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ case ATA_CMD_READ_EXT: 168731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ case ATA_CMD_WRITE: 168831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ case ATA_CMD_WRITE_EXT: 1689c15d85c8f3f73b5f20aae7928e25b6996f16b328Jens Axboe case ATA_CMD_WRITE_FUA_EXT: 169031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_crqb_pack_cmd(cw++, tf->hob_nsect, ATA_REG_NSECT, 0); 169131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ break; 169231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ case ATA_CMD_FPDMA_READ: 169331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ case ATA_CMD_FPDMA_WRITE: 16948b260248d9e0e8b64bb72fd4dee03ad86984c344Jeff Garzik mv_crqb_pack_cmd(cw++, tf->hob_feature, ATA_REG_FEATURE, 0); 169531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_crqb_pack_cmd(cw++, tf->feature, ATA_REG_FEATURE, 0); 169631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ break; 169731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ default: 169831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ /* The only other commands EDMA supports in non-queued and 169931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ * non-NCQ mode are: [RW] STREAM DMA and W DMA FUA EXT, none 170031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ * of which are defined/used by Linux. If we get here, this 170131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ * driver needs work. 170231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ * 170331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ * FIXME: modify libata to give qc_prep a return value and 170431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ * return error here. 170531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ */ 170631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ BUG_ON(tf->command); 170731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ break; 170831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ } 170931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_crqb_pack_cmd(cw++, tf->nsect, ATA_REG_NSECT, 0); 171031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_crqb_pack_cmd(cw++, tf->hob_lbal, ATA_REG_LBAL, 0); 171131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_crqb_pack_cmd(cw++, tf->lbal, ATA_REG_LBAL, 0); 171231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_crqb_pack_cmd(cw++, tf->hob_lbam, ATA_REG_LBAM, 0); 171331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_crqb_pack_cmd(cw++, tf->lbam, ATA_REG_LBAM, 0); 171431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_crqb_pack_cmd(cw++, tf->hob_lbah, ATA_REG_LBAH, 0); 171531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_crqb_pack_cmd(cw++, tf->lbah, ATA_REG_LBAH, 0); 171631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_crqb_pack_cmd(cw++, tf->device, ATA_REG_DEVICE, 0); 171731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_crqb_pack_cmd(cw++, tf->command, ATA_REG_CMD, 1); /* last */ 171831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 1719e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik if (!(qc->flags & ATA_QCFLAG_DMAMAP)) 1720e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik return; 1721e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik mv_fill_sg(qc); 1722e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik} 1723e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik 1724e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik/** 1725e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik * mv_qc_prep_iie - Host specific command preparation. 1726e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik * @qc: queued command to prepare 1727e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik * 1728e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik * This routine simply redirects to the general purpose routine 1729e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik * if command is not DMA. Else, it handles prep of the CRQB 1730e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik * (command request block), does some sanity checking, and calls 1731e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik * the SG load routine. 1732e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik * 1733e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik * LOCKING: 1734e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik * Inherited from caller. 1735e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik */ 1736e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzikstatic void mv_qc_prep_iie(struct ata_queued_cmd *qc) 1737e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik{ 1738e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik struct ata_port *ap = qc->ap; 1739e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik struct mv_port_priv *pp = ap->private_data; 1740e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik struct mv_crqb_iie *crqb; 1741e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik struct ata_taskfile *tf; 1742a6432436c5e14b416f27c8f87c5bf0bc36771f49Mark Lord unsigned in_index; 1743e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik u32 flags = 0; 1744e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik 1745138bfdd03f2c08cc62b6af3900fb7be1c696315bMark Lord if ((qc->tf.protocol != ATA_PROT_DMA) && 1746138bfdd03f2c08cc62b6af3900fb7be1c696315bMark Lord (qc->tf.protocol != ATA_PROT_NCQ)) 1747e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik return; 1748e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik 1749e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord /* Fill in Gen IIE command request block */ 1750e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik if (!(qc->tf.flags & ATA_TFLAG_WRITE)) 1751e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik flags |= CRQB_FLAG_READ; 1752e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik 1753beec7dbc6ff003bbc94de62b3323519c878fb2acTejun Heo WARN_ON(MV_MAX_Q_DEPTH <= qc->tag); 1754e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik flags |= qc->tag << CRQB_TAG_SHIFT; 17558c0aeb4a483334613336ef895f34cecc0ecbbfa6Mark Lord flags |= qc->tag << CRQB_HOSTQ_SHIFT; 1756e49856d82a887ce365637176f9f99ab68076eae8Mark Lord flags |= (qc->dev->link->pmp & 0xf) << CRQB_PMP_SHIFT; 1757e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik 1758bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik /* get current queue index from software */ 1759fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord in_index = pp->req_idx; 1760a6432436c5e14b416f27c8f87c5bf0bc36771f49Mark Lord 1761a6432436c5e14b416f27c8f87c5bf0bc36771f49Mark Lord crqb = (struct mv_crqb_iie *) &pp->crqb[in_index]; 1762eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord crqb->addr = cpu_to_le32(pp->sg_tbl_dma[qc->tag] & 0xffffffff); 1763eb73d558d1c1c931de0b3a86af962c77d74ef688Mark Lord crqb->addr_hi = cpu_to_le32((pp->sg_tbl_dma[qc->tag] >> 16) >> 16); 1764e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik crqb->flags = cpu_to_le32(flags); 1765e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik 1766e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik tf = &qc->tf; 1767e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik crqb->ata_cmd[0] = cpu_to_le32( 1768e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik (tf->command << 16) | 1769e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik (tf->feature << 24) 1770e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik ); 1771e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik crqb->ata_cmd[1] = cpu_to_le32( 1772e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik (tf->lbal << 0) | 1773e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik (tf->lbam << 8) | 1774e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik (tf->lbah << 16) | 1775e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik (tf->device << 24) 1776e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik ); 1777e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik crqb->ata_cmd[2] = cpu_to_le32( 1778e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik (tf->hob_lbal << 0) | 1779e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik (tf->hob_lbam << 8) | 1780e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik (tf->hob_lbah << 16) | 1781e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik (tf->hob_feature << 24) 1782e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik ); 1783e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik crqb->ata_cmd[3] = cpu_to_le32( 1784e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik (tf->nsect << 0) | 1785e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik (tf->hob_nsect << 8) 1786e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik ); 1787e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik 1788e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik if (!(qc->flags & ATA_QCFLAG_DMAMAP)) 178931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ return; 179031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_fill_sg(qc); 179131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ} 179231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 179305b308e1df6d9d673daedb517969241f41278b52Brett Russ/** 179405b308e1df6d9d673daedb517969241f41278b52Brett Russ * mv_qc_issue - Initiate a command to the host 179505b308e1df6d9d673daedb517969241f41278b52Brett Russ * @qc: queued command to start 179605b308e1df6d9d673daedb517969241f41278b52Brett Russ * 179705b308e1df6d9d673daedb517969241f41278b52Brett Russ * This routine simply redirects to the general purpose routine 179805b308e1df6d9d673daedb517969241f41278b52Brett Russ * if command is not DMA. Else, it sanity checks our local 179905b308e1df6d9d673daedb517969241f41278b52Brett Russ * caches of the request producer/consumer indices then enables 180005b308e1df6d9d673daedb517969241f41278b52Brett Russ * DMA and bumps the request producer index. 180105b308e1df6d9d673daedb517969241f41278b52Brett Russ * 180205b308e1df6d9d673daedb517969241f41278b52Brett Russ * LOCKING: 180305b308e1df6d9d673daedb517969241f41278b52Brett Russ * Inherited from caller. 180405b308e1df6d9d673daedb517969241f41278b52Brett Russ */ 18059a3d9eb0177eb10500d49cd283b35576082a522dTejun Heostatic unsigned int mv_qc_issue(struct ata_queued_cmd *qc) 180631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ{ 1807f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord static int limit_warnings = 10; 1808c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik struct ata_port *ap = qc->ap; 1809c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik void __iomem *port_mmio = mv_ap_base(ap); 1810c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik struct mv_port_priv *pp = ap->private_data; 1811bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik u32 in_index; 1812f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord unsigned int port_irqs = DONE_IRQ | ERR_IRQ; 1813f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord 1814f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord switch (qc->tf.protocol) { 1815f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord case ATA_PROT_DMA: 1816f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord case ATA_PROT_NCQ: 1817f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord mv_start_edma(ap, port_mmio, pp, qc->tf.protocol); 1818f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord pp->req_idx = (pp->req_idx + 1) & MV_MAX_Q_DEPTH_MASK; 1819f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord in_index = pp->req_idx << EDMA_REQ_Q_PTR_SHIFT; 1820f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord 1821f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord /* Write the request in pointer to kick the EDMA to life */ 1822f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord writelfl((pp->crqb_dma & EDMA_REQ_Q_BASE_LO_MASK) | in_index, 1823f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord port_mmio + EDMA_REQ_Q_IN_PTR_OFS); 1824f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord return 0; 182531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 1826f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord case ATA_PROT_PIO: 1827c6112bd86bc8f727bb732a47f2133e0ff12beda9Mark Lord /* 1828c6112bd86bc8f727bb732a47f2133e0ff12beda9Mark Lord * Errata SATA#16, SATA#24: warn if multiple DRQs expected. 1829c6112bd86bc8f727bb732a47f2133e0ff12beda9Mark Lord * 1830c6112bd86bc8f727bb732a47f2133e0ff12beda9Mark Lord * Someday, we might implement special polling workarounds 1831c6112bd86bc8f727bb732a47f2133e0ff12beda9Mark Lord * for these, but it all seems rather unnecessary since we 1832c6112bd86bc8f727bb732a47f2133e0ff12beda9Mark Lord * normally use only DMA for commands which transfer more 1833c6112bd86bc8f727bb732a47f2133e0ff12beda9Mark Lord * than a single block of data. 1834c6112bd86bc8f727bb732a47f2133e0ff12beda9Mark Lord * 1835c6112bd86bc8f727bb732a47f2133e0ff12beda9Mark Lord * Much of the time, this could just work regardless. 1836c6112bd86bc8f727bb732a47f2133e0ff12beda9Mark Lord * So for now, just log the incident, and allow the attempt. 1837c6112bd86bc8f727bb732a47f2133e0ff12beda9Mark Lord */ 1838c7843e8f565f624b0cff7cad1370fad4cb84dfbcMark Lord if (limit_warnings > 0 && (qc->nbytes / qc->sect_size) > 1) { 1839c6112bd86bc8f727bb732a47f2133e0ff12beda9Mark Lord --limit_warnings; 1840c6112bd86bc8f727bb732a47f2133e0ff12beda9Mark Lord ata_link_printk(qc->dev->link, KERN_WARNING, DRV_NAME 1841c6112bd86bc8f727bb732a47f2133e0ff12beda9Mark Lord ": attempting PIO w/multiple DRQ: " 1842c6112bd86bc8f727bb732a47f2133e0ff12beda9Mark Lord "this may fail due to h/w errata\n"); 1843c6112bd86bc8f727bb732a47f2133e0ff12beda9Mark Lord } 1844f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord /* drop through */ 1845f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord case ATAPI_PROT_PIO: 1846f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord port_irqs = ERR_IRQ; /* leave DONE_IRQ masked for PIO */ 1847f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord /* drop through */ 1848f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord default: 184917c5aab5b34e351531466e35b154ca86db7d46a9Mark Lord /* 185017c5aab5b34e351531466e35b154ca86db7d46a9Mark Lord * We're about to send a non-EDMA capable command to the 185131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ * port. Turn off EDMA so there won't be problems accessing 185231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ * shadow block, etc registers. 185331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ */ 1854b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord mv_stop_edma(ap); 1855f48765ccb48a62596b664aa88a2b0f943c12c0e1Mark Lord mv_clear_and_enable_port_irqs(ap, mv_ap_base(ap), port_irqs); 1856e49856d82a887ce365637176f9f99ab68076eae8Mark Lord mv_pmp_select(ap, qc->dev->link->pmp); 18579363c3825ea9ad76561eb48a395349dd29211ed6Tejun Heo return ata_sff_qc_issue(qc); 185831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ } 185931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ} 186031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 18618f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lordstatic struct ata_queued_cmd *mv_get_active_qc(struct ata_port *ap) 18628f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord{ 18638f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord struct mv_port_priv *pp = ap->private_data; 18648f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord struct ata_queued_cmd *qc; 18658f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord 18668f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord if (pp->pp_flags & MV_PP_FLAG_NCQ_EN) 18678f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord return NULL; 18688f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord qc = ata_qc_from_tag(ap, ap->link.active_tag); 186995db505125fb7bc624b7c3b6747bbeaebbffc2e4Mark Lord if (qc) { 187095db505125fb7bc624b7c3b6747bbeaebbffc2e4Mark Lord if (qc->tf.flags & ATA_TFLAG_POLLING) 187195db505125fb7bc624b7c3b6747bbeaebbffc2e4Mark Lord qc = NULL; 187295db505125fb7bc624b7c3b6747bbeaebbffc2e4Mark Lord else if (!(qc->flags & ATA_QCFLAG_ACTIVE)) 187395db505125fb7bc624b7c3b6747bbeaebbffc2e4Mark Lord qc = NULL; 187495db505125fb7bc624b7c3b6747bbeaebbffc2e4Mark Lord } 18758f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord return qc; 18768f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord} 18778f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord 187829d187bb1e30682e228ce461c487d78d945c3e4fMark Lordstatic void mv_pmp_error_handler(struct ata_port *ap) 187929d187bb1e30682e228ce461c487d78d945c3e4fMark Lord{ 188029d187bb1e30682e228ce461c487d78d945c3e4fMark Lord unsigned int pmp, pmp_map; 188129d187bb1e30682e228ce461c487d78d945c3e4fMark Lord struct mv_port_priv *pp = ap->private_data; 188229d187bb1e30682e228ce461c487d78d945c3e4fMark Lord 188329d187bb1e30682e228ce461c487d78d945c3e4fMark Lord if (pp->pp_flags & MV_PP_FLAG_DELAYED_EH) { 188429d187bb1e30682e228ce461c487d78d945c3e4fMark Lord /* 188529d187bb1e30682e228ce461c487d78d945c3e4fMark Lord * Perform NCQ error analysis on failed PMPs 188629d187bb1e30682e228ce461c487d78d945c3e4fMark Lord * before we freeze the port entirely. 188729d187bb1e30682e228ce461c487d78d945c3e4fMark Lord * 188829d187bb1e30682e228ce461c487d78d945c3e4fMark Lord * The failed PMPs are marked earlier by mv_pmp_eh_prep(). 188929d187bb1e30682e228ce461c487d78d945c3e4fMark Lord */ 189029d187bb1e30682e228ce461c487d78d945c3e4fMark Lord pmp_map = pp->delayed_eh_pmp_map; 189129d187bb1e30682e228ce461c487d78d945c3e4fMark Lord pp->pp_flags &= ~MV_PP_FLAG_DELAYED_EH; 189229d187bb1e30682e228ce461c487d78d945c3e4fMark Lord for (pmp = 0; pmp_map != 0; pmp++) { 189329d187bb1e30682e228ce461c487d78d945c3e4fMark Lord unsigned int this_pmp = (1 << pmp); 189429d187bb1e30682e228ce461c487d78d945c3e4fMark Lord if (pmp_map & this_pmp) { 189529d187bb1e30682e228ce461c487d78d945c3e4fMark Lord struct ata_link *link = &ap->pmp_link[pmp]; 189629d187bb1e30682e228ce461c487d78d945c3e4fMark Lord pmp_map &= ~this_pmp; 189729d187bb1e30682e228ce461c487d78d945c3e4fMark Lord ata_eh_analyze_ncq_error(link); 189829d187bb1e30682e228ce461c487d78d945c3e4fMark Lord } 189929d187bb1e30682e228ce461c487d78d945c3e4fMark Lord } 190029d187bb1e30682e228ce461c487d78d945c3e4fMark Lord ata_port_freeze(ap); 190129d187bb1e30682e228ce461c487d78d945c3e4fMark Lord } 190229d187bb1e30682e228ce461c487d78d945c3e4fMark Lord sata_pmp_error_handler(ap); 190329d187bb1e30682e228ce461c487d78d945c3e4fMark Lord} 190429d187bb1e30682e228ce461c487d78d945c3e4fMark Lord 19054c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lordstatic unsigned int mv_get_err_pmp_map(struct ata_port *ap) 19064c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord{ 19074c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord void __iomem *port_mmio = mv_ap_base(ap); 19084c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord 19094c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord return readl(port_mmio + SATA_TESTCTL_OFS) >> 16; 19104c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord} 19114c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord 19124c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lordstatic void mv_pmp_eh_prep(struct ata_port *ap, unsigned int pmp_map) 19134c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord{ 19144c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord struct ata_eh_info *ehi; 19154c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord unsigned int pmp; 19164c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord 19174c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord /* 19184c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * Initialize EH info for PMPs which saw device errors 19194c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord */ 19204c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord ehi = &ap->link.eh_info; 19214c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord for (pmp = 0; pmp_map != 0; pmp++) { 19224c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord unsigned int this_pmp = (1 << pmp); 19234c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord if (pmp_map & this_pmp) { 19244c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord struct ata_link *link = &ap->pmp_link[pmp]; 19254c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord 19264c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord pmp_map &= ~this_pmp; 19274c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord ehi = &link->eh_info; 19284c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord ata_ehi_clear_desc(ehi); 19294c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord ata_ehi_push_desc(ehi, "dev err"); 19304c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord ehi->err_mask |= AC_ERR_DEV; 19314c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord ehi->action |= ATA_EH_RESET; 19324c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord ata_link_abort(link); 19334c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord } 19344c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord } 19354c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord} 19364c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord 193706aaca3f6301d04463b1ee0eb75c0352147159f2Mark Lordstatic int mv_req_q_empty(struct ata_port *ap) 193806aaca3f6301d04463b1ee0eb75c0352147159f2Mark Lord{ 193906aaca3f6301d04463b1ee0eb75c0352147159f2Mark Lord void __iomem *port_mmio = mv_ap_base(ap); 194006aaca3f6301d04463b1ee0eb75c0352147159f2Mark Lord u32 in_ptr, out_ptr; 194106aaca3f6301d04463b1ee0eb75c0352147159f2Mark Lord 194206aaca3f6301d04463b1ee0eb75c0352147159f2Mark Lord in_ptr = (readl(port_mmio + EDMA_REQ_Q_IN_PTR_OFS) 194306aaca3f6301d04463b1ee0eb75c0352147159f2Mark Lord >> EDMA_REQ_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK; 194406aaca3f6301d04463b1ee0eb75c0352147159f2Mark Lord out_ptr = (readl(port_mmio + EDMA_REQ_Q_OUT_PTR_OFS) 194506aaca3f6301d04463b1ee0eb75c0352147159f2Mark Lord >> EDMA_REQ_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK; 194606aaca3f6301d04463b1ee0eb75c0352147159f2Mark Lord return (in_ptr == out_ptr); /* 1 == queue_is_empty */ 194706aaca3f6301d04463b1ee0eb75c0352147159f2Mark Lord} 194806aaca3f6301d04463b1ee0eb75c0352147159f2Mark Lord 19494c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lordstatic int mv_handle_fbs_ncq_dev_err(struct ata_port *ap) 19504c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord{ 19514c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord struct mv_port_priv *pp = ap->private_data; 19524c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord int failed_links; 19534c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord unsigned int old_map, new_map; 19544c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord 19554c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord /* 19564c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * Device error during FBS+NCQ operation: 19574c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * 19584c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * Set a port flag to prevent further I/O being enqueued. 19594c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * Leave the EDMA running to drain outstanding commands from this port. 19604c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * Perform the post-mortem/EH only when all responses are complete. 19614c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * Follow recovery sequence from 6042/7042 datasheet (7.3.15.4.2.2). 19624c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord */ 19634c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord if (!(pp->pp_flags & MV_PP_FLAG_DELAYED_EH)) { 19644c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord pp->pp_flags |= MV_PP_FLAG_DELAYED_EH; 19654c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord pp->delayed_eh_pmp_map = 0; 19664c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord } 19674c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord old_map = pp->delayed_eh_pmp_map; 19684c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord new_map = old_map | mv_get_err_pmp_map(ap); 19694c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord 19704c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord if (old_map != new_map) { 19714c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord pp->delayed_eh_pmp_map = new_map; 19724c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord mv_pmp_eh_prep(ap, new_map & ~old_map); 19734c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord } 1974c46938ccfe35a58a0873715ee4c26fc9eb8d87b3Mark Lord failed_links = hweight16(new_map); 19754c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord 19764c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord ata_port_printk(ap, KERN_INFO, "%s: pmp_map=%04x qc_map=%04x " 19774c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord "failed_links=%d nr_active_links=%d\n", 19784c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord __func__, pp->delayed_eh_pmp_map, 19794c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord ap->qc_active, failed_links, 19804c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord ap->nr_active_links); 19814c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord 198206aaca3f6301d04463b1ee0eb75c0352147159f2Mark Lord if (ap->nr_active_links <= failed_links && mv_req_q_empty(ap)) { 19834c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord mv_process_crpb_entries(ap, pp); 19844c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord mv_stop_edma(ap); 19854c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord mv_eh_freeze(ap); 19864c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord ata_port_printk(ap, KERN_INFO, "%s: done\n", __func__); 19874c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord return 1; /* handled */ 19884c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord } 19894c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord ata_port_printk(ap, KERN_INFO, "%s: waiting\n", __func__); 19904c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord return 1; /* handled */ 19914c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord} 19924c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord 19934c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lordstatic int mv_handle_fbs_non_ncq_dev_err(struct ata_port *ap) 19944c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord{ 19954c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord /* 19964c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * Possible future enhancement: 19974c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * 19984c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * FBS+non-NCQ operation is not yet implemented. 19994c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * See related notes in mv_edma_cfg(). 20004c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * 20014c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * Device error during FBS+non-NCQ operation: 20024c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * 20034c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * We need to snapshot the shadow registers for each failed command. 20044c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * Follow recovery sequence from 6042/7042 datasheet (7.3.15.4.2.3). 20054c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord */ 20064c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord return 0; /* not handled */ 20074c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord} 20084c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord 20094c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lordstatic int mv_handle_dev_err(struct ata_port *ap, u32 edma_err_cause) 20104c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord{ 20114c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord struct mv_port_priv *pp = ap->private_data; 20124c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord 20134c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord if (!(pp->pp_flags & MV_PP_FLAG_EDMA_EN)) 20144c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord return 0; /* EDMA was not active: not handled */ 20154c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord if (!(pp->pp_flags & MV_PP_FLAG_FBS_EN)) 20164c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord return 0; /* FBS was not active: not handled */ 20174c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord 20184c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord if (!(edma_err_cause & EDMA_ERR_DEV)) 20194c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord return 0; /* non DEV error: not handled */ 20204c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord edma_err_cause &= ~EDMA_ERR_IRQ_TRANSIENT; 20214c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord if (edma_err_cause & ~(EDMA_ERR_DEV | EDMA_ERR_SELF_DIS)) 20224c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord return 0; /* other problems: not handled */ 20234c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord 20244c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord if (pp->pp_flags & MV_PP_FLAG_NCQ_EN) { 20254c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord /* 20264c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * EDMA should NOT have self-disabled for this case. 20274c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * If it did, then something is wrong elsewhere, 20284c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * and we cannot handle it here. 20294c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord */ 20304c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord if (edma_err_cause & EDMA_ERR_SELF_DIS) { 20314c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord ata_port_printk(ap, KERN_WARNING, 20324c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord "%s: err_cause=0x%x pp_flags=0x%x\n", 20334c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord __func__, edma_err_cause, pp->pp_flags); 20344c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord return 0; /* not handled */ 20354c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord } 20364c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord return mv_handle_fbs_ncq_dev_err(ap); 20374c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord } else { 20384c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord /* 20394c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * EDMA should have self-disabled for this case. 20404c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * If it did not, then something is wrong elsewhere, 20414c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * and we cannot handle it here. 20424c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord */ 20434c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord if (!(edma_err_cause & EDMA_ERR_SELF_DIS)) { 20444c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord ata_port_printk(ap, KERN_WARNING, 20454c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord "%s: err_cause=0x%x pp_flags=0x%x\n", 20464c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord __func__, edma_err_cause, pp->pp_flags); 20474c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord return 0; /* not handled */ 20484c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord } 20494c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord return mv_handle_fbs_non_ncq_dev_err(ap); 20504c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord } 20514c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord return 0; /* not handled */ 20524c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord} 20534c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord 2054a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lordstatic void mv_unexpected_intr(struct ata_port *ap, int edma_was_enabled) 20558f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord{ 20568f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord struct ata_eh_info *ehi = &ap->link.eh_info; 2057a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord char *when = "idle"; 20588f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord 20598f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord ata_ehi_clear_desc(ehi); 2060a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord if (!ap || (ap->flags & ATA_FLAG_DISABLED)) { 2061a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord when = "disabled"; 2062a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord } else if (edma_was_enabled) { 2063a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord when = "EDMA enabled"; 20648f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord } else { 20658f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->link.active_tag); 20668f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord if (qc && (qc->tf.flags & ATA_TFLAG_POLLING)) 2067a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord when = "polling"; 20688f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord } 2069a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord ata_ehi_push_desc(ehi, "unexpected device interrupt while %s", when); 20708f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord ehi->err_mask |= AC_ERR_OTHER; 20718f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord ehi->action |= ATA_EH_RESET; 20728f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord ata_port_freeze(ap); 20738f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord} 20748f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord 207505b308e1df6d9d673daedb517969241f41278b52Brett Russ/** 207605b308e1df6d9d673daedb517969241f41278b52Brett Russ * mv_err_intr - Handle error interrupts on the port 207705b308e1df6d9d673daedb517969241f41278b52Brett Russ * @ap: ATA channel to manipulate 207805b308e1df6d9d673daedb517969241f41278b52Brett Russ * 20798d07379d251ab24d937e6cb0748b71106dddbc74Mark Lord * Most cases require a full reset of the chip's state machine, 20808d07379d251ab24d937e6cb0748b71106dddbc74Mark Lord * which also performs a COMRESET. 20818d07379d251ab24d937e6cb0748b71106dddbc74Mark Lord * Also, if the port disabled DMA, update our cached copy to match. 208205b308e1df6d9d673daedb517969241f41278b52Brett Russ * 208305b308e1df6d9d673daedb517969241f41278b52Brett Russ * LOCKING: 208405b308e1df6d9d673daedb517969241f41278b52Brett Russ * Inherited from caller. 208505b308e1df6d9d673daedb517969241f41278b52Brett Russ */ 208637b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lordstatic void mv_err_intr(struct ata_port *ap) 208731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ{ 208831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ void __iomem *port_mmio = mv_ap_base(ap); 2089bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik u32 edma_err_cause, eh_freeze_mask, serr = 0; 2090e40060772d85f3534d3d517197696e24bb01f45bMark Lord u32 fis_cause = 0; 2091bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik struct mv_port_priv *pp = ap->private_data; 2092bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik struct mv_host_priv *hpriv = ap->host->private_data; 2093bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik unsigned int action = 0, err_mask = 0; 20949af5c9c97dc9d599281778864c72b385f0c63341Tejun Heo struct ata_eh_info *ehi = &ap->link.eh_info; 209537b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord struct ata_queued_cmd *qc; 209637b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord int abort = 0; 209720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 20988d07379d251ab24d937e6cb0748b71106dddbc74Mark Lord /* 209937b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord * Read and clear the SError and err_cause bits. 2100e40060772d85f3534d3d517197696e24bb01f45bMark Lord * For GenIIe, if EDMA_ERR_TRANS_IRQ_7 is set, we also must read/clear 2101e40060772d85f3534d3d517197696e24bb01f45bMark Lord * the FIS_IRQ_CAUSE register before clearing edma_err_cause. 21028d07379d251ab24d937e6cb0748b71106dddbc74Mark Lord */ 210337b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord sata_scr_read(&ap->link, SCR_ERROR, &serr); 210437b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord sata_scr_write_flush(&ap->link, SCR_ERROR, serr); 210537b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord 2106bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik edma_err_cause = readl(port_mmio + EDMA_ERR_IRQ_CAUSE_OFS); 2107e40060772d85f3534d3d517197696e24bb01f45bMark Lord if (IS_GEN_IIE(hpriv) && (edma_err_cause & EDMA_ERR_TRANS_IRQ_7)) { 2108e40060772d85f3534d3d517197696e24bb01f45bMark Lord fis_cause = readl(port_mmio + SATA_FIS_IRQ_CAUSE_OFS); 2109e40060772d85f3534d3d517197696e24bb01f45bMark Lord writelfl(~fis_cause, port_mmio + SATA_FIS_IRQ_CAUSE_OFS); 2110e40060772d85f3534d3d517197696e24bb01f45bMark Lord } 21118d07379d251ab24d937e6cb0748b71106dddbc74Mark Lord writelfl(~edma_err_cause, port_mmio + EDMA_ERR_IRQ_CAUSE_OFS); 2112bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 21134c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord if (edma_err_cause & EDMA_ERR_DEV) { 21144c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord /* 21154c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * Device errors during FIS-based switching operation 21164c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord * require special handling. 21174c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord */ 21184c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord if (mv_handle_dev_err(ap, edma_err_cause)) 21194c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord return; 21204c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord } 21214c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord 212237b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord qc = mv_get_active_qc(ap); 212337b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord ata_ehi_clear_desc(ehi); 212437b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord ata_ehi_push_desc(ehi, "edma_err_cause=%08x pp_flags=%08x", 212537b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord edma_err_cause, pp->pp_flags); 2126e40060772d85f3534d3d517197696e24bb01f45bMark Lord 2127c443c5002b24ff5d2f4efcc25a861f0cb835130aMark Lord if (IS_GEN_IIE(hpriv) && (edma_err_cause & EDMA_ERR_TRANS_IRQ_7)) { 2128e40060772d85f3534d3d517197696e24bb01f45bMark Lord ata_ehi_push_desc(ehi, "fis_cause=%08x", fis_cause); 2129c443c5002b24ff5d2f4efcc25a861f0cb835130aMark Lord if (fis_cause & SATA_FIS_IRQ_AN) { 2130c443c5002b24ff5d2f4efcc25a861f0cb835130aMark Lord u32 ec = edma_err_cause & 2131c443c5002b24ff5d2f4efcc25a861f0cb835130aMark Lord ~(EDMA_ERR_TRANS_IRQ_7 | EDMA_ERR_IRQ_TRANSIENT); 2132c443c5002b24ff5d2f4efcc25a861f0cb835130aMark Lord sata_async_notification(ap); 2133c443c5002b24ff5d2f4efcc25a861f0cb835130aMark Lord if (!ec) 2134c443c5002b24ff5d2f4efcc25a861f0cb835130aMark Lord return; /* Just an AN; no need for the nukes */ 2135c443c5002b24ff5d2f4efcc25a861f0cb835130aMark Lord ata_ehi_push_desc(ehi, "SDB notify"); 2136c443c5002b24ff5d2f4efcc25a861f0cb835130aMark Lord } 2137c443c5002b24ff5d2f4efcc25a861f0cb835130aMark Lord } 2138bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik /* 2139352fab701ca4753dd005b67ce5e512be944eb591Mark Lord * All generations share these EDMA error cause bits: 2140bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik */ 214137b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord if (edma_err_cause & EDMA_ERR_DEV) { 2142bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik err_mask |= AC_ERR_DEV; 214337b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord action |= ATA_EH_RESET; 214437b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord ata_ehi_push_desc(ehi, "dev error"); 214537b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord } 2146bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik if (edma_err_cause & (EDMA_ERR_D_PAR | EDMA_ERR_PRD_PAR | 21476c1153e00af8de755ec278d873a97c9ce2a72d10Jeff Garzik EDMA_ERR_CRQB_PAR | EDMA_ERR_CRPB_PAR | 2148bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik EDMA_ERR_INTRL_PAR)) { 2149bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik err_mask |= AC_ERR_ATA_BUS; 2150cf48062658e7ab3bc55e10c65676c3c73c16f8bfTejun Heo action |= ATA_EH_RESET; 2151b64bbc39f2122a2276578e40144af69ef01decd4Tejun Heo ata_ehi_push_desc(ehi, "parity error"); 2152bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik } 2153bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik if (edma_err_cause & (EDMA_ERR_DEV_DCON | EDMA_ERR_DEV_CON)) { 2154bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik ata_ehi_hotplugged(ehi); 2155bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik ata_ehi_push_desc(ehi, edma_err_cause & EDMA_ERR_DEV_DCON ? 2156b64bbc39f2122a2276578e40144af69ef01decd4Tejun Heo "dev disconnect" : "dev connect"); 2157cf48062658e7ab3bc55e10c65676c3c73c16f8bfTejun Heo action |= ATA_EH_RESET; 2158bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik } 2159bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 2160352fab701ca4753dd005b67ce5e512be944eb591Mark Lord /* 2161352fab701ca4753dd005b67ce5e512be944eb591Mark Lord * Gen-I has a different SELF_DIS bit, 2162352fab701ca4753dd005b67ce5e512be944eb591Mark Lord * different FREEZE bits, and no SERR bit: 2163352fab701ca4753dd005b67ce5e512be944eb591Mark Lord */ 2164ee9ccdf70163ca6408f6965e0fbc65baeac7312cJeff Garzik if (IS_GEN_I(hpriv)) { 2165bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik eh_freeze_mask = EDMA_EH_FREEZE_5; 2166bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik if (edma_err_cause & EDMA_ERR_SELF_DIS_5) { 2167bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik pp->pp_flags &= ~MV_PP_FLAG_EDMA_EN; 2168b64bbc39f2122a2276578e40144af69ef01decd4Tejun Heo ata_ehi_push_desc(ehi, "EDMA self-disable"); 2169bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik } 2170bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik } else { 2171bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik eh_freeze_mask = EDMA_EH_FREEZE; 2172bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik if (edma_err_cause & EDMA_ERR_SELF_DIS) { 2173bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik pp->pp_flags &= ~MV_PP_FLAG_EDMA_EN; 2174b64bbc39f2122a2276578e40144af69ef01decd4Tejun Heo ata_ehi_push_desc(ehi, "EDMA self-disable"); 2175bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik } 2176bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik if (edma_err_cause & EDMA_ERR_SERR) { 21778d07379d251ab24d937e6cb0748b71106dddbc74Mark Lord ata_ehi_push_desc(ehi, "SError=%08x", serr); 21788d07379d251ab24d937e6cb0748b71106dddbc74Mark Lord err_mask |= AC_ERR_ATA_BUS; 2179cf48062658e7ab3bc55e10c65676c3c73c16f8bfTejun Heo action |= ATA_EH_RESET; 2180bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik } 2181afb0edd922c7ed6e73678730921dfcccebec17e8Brett Russ } 218220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 2183bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik if (!err_mask) { 2184bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik err_mask = AC_ERR_OTHER; 2185cf48062658e7ab3bc55e10c65676c3c73c16f8bfTejun Heo action |= ATA_EH_RESET; 2186bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik } 2187bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 2188bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik ehi->serror |= serr; 2189bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik ehi->action |= action; 2190bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 2191bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik if (qc) 2192bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik qc->err_mask |= err_mask; 2193bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik else 2194bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik ehi->err_mask |= err_mask; 2195bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 219637b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord if (err_mask == AC_ERR_DEV) { 219737b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord /* 219837b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord * Cannot do ata_port_freeze() here, 219937b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord * because it would kill PIO access, 220037b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord * which is needed for further diagnosis. 220137b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord */ 220237b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord mv_eh_freeze(ap); 220337b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord abort = 1; 220437b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord } else if (edma_err_cause & eh_freeze_mask) { 220537b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord /* 220637b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord * Note to self: ata_port_freeze() calls ata_port_abort() 220737b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord */ 2208bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik ata_port_freeze(ap); 220937b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord } else { 221037b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord abort = 1; 221137b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord } 221237b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord 221337b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord if (abort) { 221437b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord if (qc) 221537b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord ata_link_abort(qc->dev->link); 221637b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord else 221737b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord ata_port_abort(ap); 221837b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord } 2219bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik} 2220bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 2221fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lordstatic void mv_process_crpb_response(struct ata_port *ap, 2222fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord struct mv_crpb *response, unsigned int tag, int ncq_enabled) 2223fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord{ 2224fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord struct ata_queued_cmd *qc = ata_qc_from_tag(ap, tag); 2225fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord 2226fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord if (qc) { 2227fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord u8 ata_status; 2228fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord u16 edma_status = le16_to_cpu(response->flags); 2229fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord /* 2230fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord * edma_status from a response queue entry: 2231fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord * LSB is from EDMA_ERR_IRQ_CAUSE_OFS (non-NCQ only). 2232fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord * MSB is saved ATA status from command completion. 2233fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord */ 2234fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord if (!ncq_enabled) { 2235fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord u8 err_cause = edma_status & 0xff & ~EDMA_ERR_DEV; 2236fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord if (err_cause) { 2237fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord /* 2238fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord * Error will be seen/handled by mv_err_intr(). 2239fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord * So do nothing at all here. 2240fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord */ 2241fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord return; 2242fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord } 2243fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord } 2244fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord ata_status = edma_status >> CRPB_FLAG_STATUS_SHIFT; 224537b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord if (!ac_err_mask(ata_status)) 224637b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord ata_qc_complete(qc); 224737b9046a3e433a0b0c39ad1e81ec187d5be800baMark Lord /* else: leave it for mv_err_intr() */ 2248fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord } else { 2249fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord ata_port_printk(ap, KERN_ERR, "%s: no qc for tag=%d\n", 2250fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord __func__, tag); 2251fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord } 2252fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord} 2253fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord 2254fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lordstatic void mv_process_crpb_entries(struct ata_port *ap, struct mv_port_priv *pp) 2255bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik{ 2256bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik void __iomem *port_mmio = mv_ap_base(ap); 2257bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik struct mv_host_priv *hpriv = ap->host->private_data; 2258fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord u32 in_index; 2259bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik bool work_done = false; 2260fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord int ncq_enabled = (pp->pp_flags & MV_PP_FLAG_NCQ_EN); 2261bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 2262fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord /* Get the hardware queue position index */ 2263bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik in_index = (readl(port_mmio + EDMA_RSP_Q_IN_PTR_OFS) 2264bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik >> EDMA_RSP_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK; 2265bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 2266fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord /* Process new responses from since the last time we looked */ 2267fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord while (in_index != pp->resp_idx) { 22686c1153e00af8de755ec278d873a97c9ce2a72d10Jeff Garzik unsigned int tag; 2269fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord struct mv_crpb *response = &pp->crpb[pp->resp_idx]; 2270bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 2271fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord pp->resp_idx = (pp->resp_idx + 1) & MV_MAX_Q_DEPTH_MASK; 2272bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 2273fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord if (IS_GEN_I(hpriv)) { 2274fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord /* 50xx: no NCQ, only one command active at a time */ 22759af5c9c97dc9d599281778864c72b385f0c63341Tejun Heo tag = ap->link.active_tag; 2276fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord } else { 2277fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord /* Gen II/IIE: get command tag from CRPB entry */ 2278fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord tag = le16_to_cpu(response->id) & 0x1f; 2279bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik } 2280fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord mv_process_crpb_response(ap, response, tag, ncq_enabled); 2281bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik work_done = true; 2282bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik } 2283bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 2284352fab701ca4753dd005b67ce5e512be944eb591Mark Lord /* Update the software queue position index in hardware */ 2285bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik if (work_done) 2286bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik writelfl((pp->crpb_dma & EDMA_RSP_Q_BASE_LO_MASK) | 2287fcfb1f77cea81f74d865b4d33f2e452ffa1973e8Mark Lord (pp->resp_idx << EDMA_RSP_Q_PTR_SHIFT), 2288bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik port_mmio + EDMA_RSP_Q_OUT_PTR_OFS); 228920f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ} 229020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 2291a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lordstatic void mv_port_intr(struct ata_port *ap, u32 port_cause) 2292a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord{ 2293a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord struct mv_port_priv *pp; 2294a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord int edma_was_enabled; 2295a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord 2296a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord if (!ap || (ap->flags & ATA_FLAG_DISABLED)) { 2297a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord mv_unexpected_intr(ap, 0); 2298a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord return; 2299a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord } 2300a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord /* 2301a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord * Grab a snapshot of the EDMA_EN flag setting, 2302a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord * so that we have a consistent view for this port, 2303a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord * even if something we call of our routines changes it. 2304a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord */ 2305a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord pp = ap->private_data; 2306a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord edma_was_enabled = (pp->pp_flags & MV_PP_FLAG_EDMA_EN); 2307a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord /* 2308a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord * Process completed CRPB response(s) before other events. 2309a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord */ 2310a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord if (edma_was_enabled && (port_cause & DONE_IRQ)) { 2311a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord mv_process_crpb_entries(ap, pp); 23124c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord if (pp->pp_flags & MV_PP_FLAG_DELAYED_EH) 23134c299ca3649ccf666819e7d4a27a68c39fa174f1Mark Lord mv_handle_fbs_ncq_dev_err(ap); 2314a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord } 2315a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord /* 2316a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord * Handle chip-reported errors, or continue on to handle PIO. 2317a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord */ 2318a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord if (unlikely(port_cause & ERR_IRQ)) { 2319a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord mv_err_intr(ap); 2320a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord } else if (!edma_was_enabled) { 2321a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord struct ata_queued_cmd *qc = mv_get_active_qc(ap); 2322a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord if (qc) 2323a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord ata_sff_host_intr(ap, qc); 2324a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord else 2325a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord mv_unexpected_intr(ap, edma_was_enabled); 2326a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord } 2327a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord} 2328a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord 232905b308e1df6d9d673daedb517969241f41278b52Brett Russ/** 233005b308e1df6d9d673daedb517969241f41278b52Brett Russ * mv_host_intr - Handle all interrupts on the given host controller 2331cca3974e48607c3775dc73b544a5700b2e37c21aJeff Garzik * @host: host specific structure 23327368f91926a2870a8c3f9546d86535ce71ae0757Mark Lord * @main_irq_cause: Main interrupt cause register for the chip. 233305b308e1df6d9d673daedb517969241f41278b52Brett Russ * 233405b308e1df6d9d673daedb517969241f41278b52Brett Russ * LOCKING: 233505b308e1df6d9d673daedb517969241f41278b52Brett Russ * Inherited from caller. 233605b308e1df6d9d673daedb517969241f41278b52Brett Russ */ 23377368f91926a2870a8c3f9546d86535ce71ae0757Mark Lordstatic int mv_host_intr(struct ata_host *host, u32 main_irq_cause) 233820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ{ 2339f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara struct mv_host_priv *hpriv = host->private_data; 2340eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord void __iomem *mmio = hpriv->base, *hc_mmio; 2341a3718c1f230240361ed92d3e53342df0ff7efa8cMark Lord unsigned int handled = 0, port; 234220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 2343a3718c1f230240361ed92d3e53342df0ff7efa8cMark Lord for (port = 0; port < hpriv->n_ports; port++) { 2344cca3974e48607c3775dc73b544a5700b2e37c21aJeff Garzik struct ata_port *ap = host->ports[port]; 2345eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord unsigned int p, shift, hardport, port_cause; 2346eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord 2347a3718c1f230240361ed92d3e53342df0ff7efa8cMark Lord MV_PORT_TO_SHIFT_AND_HARDPORT(port, shift, hardport); 2348a3718c1f230240361ed92d3e53342df0ff7efa8cMark Lord /* 2349eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord * Each hc within the host has its own hc_irq_cause register, 2350eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord * where the interrupting ports bits get ack'd. 2351a3718c1f230240361ed92d3e53342df0ff7efa8cMark Lord */ 2352eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord if (hardport == 0) { /* first port on this hc ? */ 2353eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord u32 hc_cause = (main_irq_cause >> shift) & HC0_IRQ_PEND; 2354eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord u32 port_mask, ack_irqs; 2355eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord /* 2356eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord * Skip this entire hc if nothing pending for any ports 2357eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord */ 2358eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord if (!hc_cause) { 2359eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord port += MV_PORTS_PER_HC - 1; 2360eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord continue; 2361eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord } 2362eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord /* 2363eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord * We don't need/want to read the hc_irq_cause register, 2364eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord * because doing so hurts performance, and 2365eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord * main_irq_cause already gives us everything we need. 2366eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord * 2367eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord * But we do have to *write* to the hc_irq_cause to ack 2368eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord * the ports that we are handling this time through. 2369eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord * 2370eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord * This requires that we create a bitmap for those 2371eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord * ports which interrupted us, and use that bitmap 2372eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord * to ack (only) those ports via hc_irq_cause. 2373eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord */ 2374eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord ack_irqs = 0; 2375eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord for (p = 0; p < MV_PORTS_PER_HC; ++p) { 2376eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord if ((port + p) >= hpriv->n_ports) 2377eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord break; 2378eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord port_mask = (DONE_IRQ | ERR_IRQ) << (p * 2); 2379eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord if (hc_cause & port_mask) 2380eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord ack_irqs |= (DMA_IRQ | DEV_IRQ) << p; 2381eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord } 2382a3718c1f230240361ed92d3e53342df0ff7efa8cMark Lord hc_mmio = mv_hc_base_from_port(mmio, port); 2383eabd5eb1cb59bfb162e7aa23007248f2bb480816Mark Lord writelfl(~ack_irqs, hc_mmio + HC_IRQ_CAUSE_OFS); 2384a3718c1f230240361ed92d3e53342df0ff7efa8cMark Lord handled = 1; 2385a3718c1f230240361ed92d3e53342df0ff7efa8cMark Lord } 23868f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord /* 2387a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord * Handle interrupts signalled for this port: 23888f767f8a02e6c65d393fd0f2ca19a91c9898cc2dMark Lord */ 2389a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord port_cause = (main_irq_cause >> shift) & (DONE_IRQ | ERR_IRQ); 2390a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord if (port_cause) 2391a90103298fd5ccd9a9df6d47bde9a3f371707037Mark Lord mv_port_intr(ap, port_cause); 239220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ } 2393a3718c1f230240361ed92d3e53342df0ff7efa8cMark Lord return handled; 239420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ} 239520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 2396a3718c1f230240361ed92d3e53342df0ff7efa8cMark Lordstatic int mv_pci_error(struct ata_host *host, void __iomem *mmio) 2397bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik{ 239802a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord struct mv_host_priv *hpriv = host->private_data; 2399bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik struct ata_port *ap; 2400bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik struct ata_queued_cmd *qc; 2401bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik struct ata_eh_info *ehi; 2402bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik unsigned int i, err_mask, printed = 0; 2403bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik u32 err_cause; 2404bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 240502a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord err_cause = readl(mmio + hpriv->irq_cause_ofs); 2406bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 2407bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik dev_printk(KERN_ERR, host->dev, "PCI ERROR; PCI IRQ cause=0x%08x\n", 2408bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik err_cause); 2409bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 2410bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik DPRINTK("All regs @ PCI error\n"); 2411bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik mv_dump_all_regs(mmio, -1, to_pci_dev(host->dev)); 2412bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 241302a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord writelfl(0, mmio + hpriv->irq_cause_ofs); 2414bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 2415bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik for (i = 0; i < host->n_ports; i++) { 2416bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik ap = host->ports[i]; 2417936fd7328657884d5a69a55666c74a55aa83ca27Tejun Heo if (!ata_link_offline(&ap->link)) { 24189af5c9c97dc9d599281778864c72b385f0c63341Tejun Heo ehi = &ap->link.eh_info; 2419bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik ata_ehi_clear_desc(ehi); 2420bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik if (!printed++) 2421bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik ata_ehi_push_desc(ehi, 2422bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik "PCI err cause 0x%08x", err_cause); 2423bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik err_mask = AC_ERR_HOST_BUS; 2424cf48062658e7ab3bc55e10c65676c3c73c16f8bfTejun Heo ehi->action = ATA_EH_RESET; 24259af5c9c97dc9d599281778864c72b385f0c63341Tejun Heo qc = ata_qc_from_tag(ap, ap->link.active_tag); 2426bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik if (qc) 2427bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik qc->err_mask |= err_mask; 2428bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik else 2429bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik ehi->err_mask |= err_mask; 2430bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 2431bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik ata_port_freeze(ap); 2432bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik } 2433bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik } 2434a3718c1f230240361ed92d3e53342df0ff7efa8cMark Lord return 1; /* handled */ 2435bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik} 2436bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 243705b308e1df6d9d673daedb517969241f41278b52Brett Russ/** 2438c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik * mv_interrupt - Main interrupt event handler 243905b308e1df6d9d673daedb517969241f41278b52Brett Russ * @irq: unused 244005b308e1df6d9d673daedb517969241f41278b52Brett Russ * @dev_instance: private data; in this case the host structure 244105b308e1df6d9d673daedb517969241f41278b52Brett Russ * 244205b308e1df6d9d673daedb517969241f41278b52Brett Russ * Read the read only register to determine if any host 244305b308e1df6d9d673daedb517969241f41278b52Brett Russ * controllers have pending interrupts. If so, call lower level 244405b308e1df6d9d673daedb517969241f41278b52Brett Russ * routine to handle. Also check for PCI errors which are only 244505b308e1df6d9d673daedb517969241f41278b52Brett Russ * reported here. 244605b308e1df6d9d673daedb517969241f41278b52Brett Russ * 24478b260248d9e0e8b64bb72fd4dee03ad86984c344Jeff Garzik * LOCKING: 2448cca3974e48607c3775dc73b544a5700b2e37c21aJeff Garzik * This routine holds the host lock while processing pending 244905b308e1df6d9d673daedb517969241f41278b52Brett Russ * interrupts. 245005b308e1df6d9d673daedb517969241f41278b52Brett Russ */ 24517d12e780e003f93433d49ce78cfedf4b4c52adc5David Howellsstatic irqreturn_t mv_interrupt(int irq, void *dev_instance) 245220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ{ 2453cca3974e48607c3775dc73b544a5700b2e37c21aJeff Garzik struct ata_host *host = dev_instance; 2454f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara struct mv_host_priv *hpriv = host->private_data; 2455a3718c1f230240361ed92d3e53342df0ff7efa8cMark Lord unsigned int handled = 0; 24566d3c30efc964fadf2e6270e6fceaeca3ce50027aMark Lord int using_msi = hpriv->hp_flags & MV_HP_FLAG_MSI; 245796e2c487933e5f69e98fffdcae2c35c78a671c07Mark Lord u32 main_irq_cause, pending_irqs; 245820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 2459646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord spin_lock(&host->lock); 24606d3c30efc964fadf2e6270e6fceaeca3ce50027aMark Lord 24616d3c30efc964fadf2e6270e6fceaeca3ce50027aMark Lord /* for MSI: block new interrupts while in here */ 24626d3c30efc964fadf2e6270e6fceaeca3ce50027aMark Lord if (using_msi) 24636d3c30efc964fadf2e6270e6fceaeca3ce50027aMark Lord writel(0, hpriv->main_irq_mask_addr); 24646d3c30efc964fadf2e6270e6fceaeca3ce50027aMark Lord 24657368f91926a2870a8c3f9546d86535ce71ae0757Mark Lord main_irq_cause = readl(hpriv->main_irq_cause_addr); 246696e2c487933e5f69e98fffdcae2c35c78a671c07Mark Lord pending_irqs = main_irq_cause & hpriv->main_irq_mask; 2467352fab701ca4753dd005b67ce5e512be944eb591Mark Lord /* 2468352fab701ca4753dd005b67ce5e512be944eb591Mark Lord * Deal with cases where we either have nothing pending, or have read 2469352fab701ca4753dd005b67ce5e512be944eb591Mark Lord * a bogus register value which can indicate HW removal or PCI fault. 247020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ */ 2471a44253d24a97ec3efe601267274a5fb64d8696c1Mark Lord if (pending_irqs && main_irq_cause != 0xffffffffU) { 24721f39847255a02c69190ae30c33b8ccf4c10840dfMark Lord if (unlikely((pending_irqs & PCI_ERR) && !IS_SOC(hpriv))) 2473a3718c1f230240361ed92d3e53342df0ff7efa8cMark Lord handled = mv_pci_error(host, hpriv->base); 2474a3718c1f230240361ed92d3e53342df0ff7efa8cMark Lord else 2475a44253d24a97ec3efe601267274a5fb64d8696c1Mark Lord handled = mv_host_intr(host, pending_irqs); 2476bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik } 24776d3c30efc964fadf2e6270e6fceaeca3ce50027aMark Lord 24786d3c30efc964fadf2e6270e6fceaeca3ce50027aMark Lord /* for MSI: unmask; interrupt cause bits will retrigger now */ 24796d3c30efc964fadf2e6270e6fceaeca3ce50027aMark Lord if (using_msi) 24806d3c30efc964fadf2e6270e6fceaeca3ce50027aMark Lord writel(hpriv->main_irq_mask, hpriv->main_irq_mask_addr); 24816d3c30efc964fadf2e6270e6fceaeca3ce50027aMark Lord 24829d51af7bd2f1d730cb6eeeb9ff837e3441ad4e07Mark Lord spin_unlock(&host->lock); 24839d51af7bd2f1d730cb6eeeb9ff837e3441ad4e07Mark Lord 248420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ return IRQ_RETVAL(handled); 248520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ} 248620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 2487c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzikstatic unsigned int mv5_scr_offset(unsigned int sc_reg_in) 2488c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik{ 2489c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik unsigned int ofs; 2490c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2491c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik switch (sc_reg_in) { 2492c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik case SCR_STATUS: 2493c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik case SCR_ERROR: 2494c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik case SCR_CONTROL: 2495c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik ofs = sc_reg_in * sizeof(u32); 2496c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik break; 2497c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik default: 2498c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik ofs = 0xffffffffU; 2499c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik break; 2500c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik } 2501c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik return ofs; 2502c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik} 2503c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 250482ef04fb4c82542b3eda81cca461f0594ce9cd0bTejun Heostatic int mv5_scr_read(struct ata_link *link, unsigned int sc_reg_in, u32 *val) 2505c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik{ 250682ef04fb4c82542b3eda81cca461f0594ce9cd0bTejun Heo struct mv_host_priv *hpriv = link->ap->host->private_data; 2507f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara void __iomem *mmio = hpriv->base; 250882ef04fb4c82542b3eda81cca461f0594ce9cd0bTejun Heo void __iomem *addr = mv5_phy_base(mmio, link->ap->port_no); 2509c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik unsigned int ofs = mv5_scr_offset(sc_reg_in); 2510c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2511da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo if (ofs != 0xffffffffU) { 2512da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo *val = readl(addr + ofs); 2513da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo return 0; 2514da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo } else 2515da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo return -EINVAL; 2516c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik} 2517c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 251882ef04fb4c82542b3eda81cca461f0594ce9cd0bTejun Heostatic int mv5_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val) 2519c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik{ 252082ef04fb4c82542b3eda81cca461f0594ce9cd0bTejun Heo struct mv_host_priv *hpriv = link->ap->host->private_data; 2521f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara void __iomem *mmio = hpriv->base; 252282ef04fb4c82542b3eda81cca461f0594ce9cd0bTejun Heo void __iomem *addr = mv5_phy_base(mmio, link->ap->port_no); 2523c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik unsigned int ofs = mv5_scr_offset(sc_reg_in); 2524c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2525da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo if (ofs != 0xffffffffU) { 25260d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo writelfl(val, addr + ofs); 2527da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo return 0; 2528da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo } else 2529da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo return -EINVAL; 2530c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik} 2531c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 25327bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bisharastatic void mv5_reset_bus(struct ata_host *host, void __iomem *mmio) 2533522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik{ 25347bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara struct pci_dev *pdev = to_pci_dev(host->dev); 2535522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik int early_5080; 2536522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik 253744c10138fd4bbc4b6d6bff0873c24902f2a9da65Auke Kok early_5080 = (pdev->device == 0x5080) && (pdev->revision == 0); 2538522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik 2539522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik if (!early_5080) { 2540522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik u32 tmp = readl(mmio + MV_PCI_EXP_ROM_BAR_CTL); 2541522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik tmp |= (1 << 0); 2542522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik writel(tmp, mmio + MV_PCI_EXP_ROM_BAR_CTL); 2543522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik } 2544522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik 25457bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara mv_reset_pci_bus(host, mmio); 2546522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik} 2547522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik 2548522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzikstatic void mv5_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio) 2549522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik{ 25508e7decdb8b132ee970a2636931b7653dec6af472Mark Lord writel(0x0fcfffff, mmio + MV_FLASH_CTL_OFS); 2551522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik} 2552522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik 255347c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzikstatic void mv5_read_preamp(struct mv_host_priv *hpriv, int idx, 2554ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik void __iomem *mmio) 2555ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik{ 2556c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik void __iomem *phy_mmio = mv5_phy_base(mmio, idx); 2557c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik u32 tmp; 2558c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2559c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik tmp = readl(phy_mmio + MV5_PHY_MODE); 2560c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2561c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik hpriv->signal[idx].pre = tmp & 0x1800; /* bits 12:11 */ 2562c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik hpriv->signal[idx].amps = tmp & 0xe0; /* bits 7:5 */ 2563ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik} 2564ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik 256547c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzikstatic void mv5_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio) 2566ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik{ 2567522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik u32 tmp; 2568522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik 25698e7decdb8b132ee970a2636931b7653dec6af472Mark Lord writel(0, mmio + MV_GPIO_PORT_CTL_OFS); 2570522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik 2571522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik /* FIXME: handle MV_HP_ERRATA_50XXB2 errata */ 2572522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik 2573522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik tmp = readl(mmio + MV_PCI_EXP_ROM_BAR_CTL); 2574522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik tmp |= ~(1 << 0); 2575522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik writel(tmp, mmio + MV_PCI_EXP_ROM_BAR_CTL); 2576ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik} 2577ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik 25782a47ce06d534692f9bd2bf4e90a20fc9b1054c39Jeff Garzikstatic void mv5_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio, 25792a47ce06d534692f9bd2bf4e90a20fc9b1054c39Jeff Garzik unsigned int port) 2580bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik{ 2581c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik void __iomem *phy_mmio = mv5_phy_base(mmio, port); 2582c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik const u32 mask = (1<<12) | (1<<11) | (1<<7) | (1<<6) | (1<<5); 2583c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik u32 tmp; 2584c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik int fix_apm_sq = (hpriv->hp_flags & MV_HP_ERRATA_50XXB0); 2585c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2586c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik if (fix_apm_sq) { 25878e7decdb8b132ee970a2636931b7653dec6af472Mark Lord tmp = readl(phy_mmio + MV5_LTMODE_OFS); 2588c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik tmp |= (1 << 19); 25898e7decdb8b132ee970a2636931b7653dec6af472Mark Lord writel(tmp, phy_mmio + MV5_LTMODE_OFS); 2590c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 25918e7decdb8b132ee970a2636931b7653dec6af472Mark Lord tmp = readl(phy_mmio + MV5_PHY_CTL_OFS); 2592c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik tmp &= ~0x3; 2593c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik tmp |= 0x1; 25948e7decdb8b132ee970a2636931b7653dec6af472Mark Lord writel(tmp, phy_mmio + MV5_PHY_CTL_OFS); 2595c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik } 2596c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2597c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik tmp = readl(phy_mmio + MV5_PHY_MODE); 2598c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik tmp &= ~mask; 2599c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik tmp |= hpriv->signal[port].pre; 2600c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik tmp |= hpriv->signal[port].amps; 2601c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik writel(tmp, phy_mmio + MV5_PHY_MODE); 2602bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik} 2603bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik 2604c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2605c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik#undef ZERO 2606c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik#define ZERO(reg) writel(0, port_mmio + (reg)) 2607c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzikstatic void mv5_reset_hc_port(struct mv_host_priv *hpriv, void __iomem *mmio, 2608c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik unsigned int port) 2609c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik{ 2610c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik void __iomem *port_mmio = mv_port_base(mmio, port); 2611c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2612e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord mv_reset_channel(hpriv, mmio, port); 2613c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2614c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik ZERO(0x028); /* command */ 2615c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik writel(0x11f, port_mmio + EDMA_CFG_OFS); 2616c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik ZERO(0x004); /* timer */ 2617c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik ZERO(0x008); /* irq err cause */ 2618c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik ZERO(0x00c); /* irq err mask */ 2619c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik ZERO(0x010); /* rq bah */ 2620c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik ZERO(0x014); /* rq inp */ 2621c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik ZERO(0x018); /* rq outp */ 2622c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik ZERO(0x01c); /* respq bah */ 2623c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik ZERO(0x024); /* respq outp */ 2624c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik ZERO(0x020); /* respq inp */ 2625c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik ZERO(0x02c); /* test control */ 26268e7decdb8b132ee970a2636931b7653dec6af472Mark Lord writel(0xbc, port_mmio + EDMA_IORDY_TMOUT_OFS); 2627c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik} 2628c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik#undef ZERO 2629c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2630c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik#define ZERO(reg) writel(0, hc_mmio + (reg)) 2631c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzikstatic void mv5_reset_one_hc(struct mv_host_priv *hpriv, void __iomem *mmio, 2632c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik unsigned int hc) 263347c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik{ 2634c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik void __iomem *hc_mmio = mv_hc_base(mmio, hc); 2635c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik u32 tmp; 2636c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2637c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik ZERO(0x00c); 2638c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik ZERO(0x010); 2639c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik ZERO(0x014); 2640c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik ZERO(0x018); 2641c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2642c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik tmp = readl(hc_mmio + 0x20); 2643c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik tmp &= 0x1c1c1c1c; 2644c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik tmp |= 0x03030303; 2645c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik writel(tmp, hc_mmio + 0x20); 2646c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik} 2647c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik#undef ZERO 2648c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2649c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzikstatic int mv5_reset_hc(struct mv_host_priv *hpriv, void __iomem *mmio, 2650c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik unsigned int n_hc) 2651c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik{ 2652c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik unsigned int hc, port; 2653c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2654c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik for (hc = 0; hc < n_hc; hc++) { 2655c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik for (port = 0; port < MV_PORTS_PER_HC; port++) 2656c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik mv5_reset_hc_port(hpriv, mmio, 2657c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik (hc * MV_PORTS_PER_HC) + port); 2658c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2659c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik mv5_reset_one_hc(hpriv, mmio, hc); 2660c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik } 2661c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2662c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik return 0; 266347c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik} 266447c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik 2665101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik#undef ZERO 2666101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik#define ZERO(reg) writel(0, mmio + (reg)) 26677bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bisharastatic void mv_reset_pci_bus(struct ata_host *host, void __iomem *mmio) 2668101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik{ 266902a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord struct mv_host_priv *hpriv = host->private_data; 2670101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik u32 tmp; 2671101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik 26728e7decdb8b132ee970a2636931b7653dec6af472Mark Lord tmp = readl(mmio + MV_PCI_MODE_OFS); 2673101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik tmp &= 0xff00ffff; 26748e7decdb8b132ee970a2636931b7653dec6af472Mark Lord writel(tmp, mmio + MV_PCI_MODE_OFS); 2675101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik 2676101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik ZERO(MV_PCI_DISC_TIMER); 2677101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik ZERO(MV_PCI_MSI_TRIGGER); 26788e7decdb8b132ee970a2636931b7653dec6af472Mark Lord writel(0x000100ff, mmio + MV_PCI_XBAR_TMOUT_OFS); 2679101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik ZERO(MV_PCI_SERR_MASK); 268002a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord ZERO(hpriv->irq_cause_ofs); 268102a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord ZERO(hpriv->irq_mask_ofs); 2682101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik ZERO(MV_PCI_ERR_LOW_ADDRESS); 2683101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik ZERO(MV_PCI_ERR_HIGH_ADDRESS); 2684101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik ZERO(MV_PCI_ERR_ATTRIBUTE); 2685101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik ZERO(MV_PCI_ERR_COMMAND); 2686101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik} 2687101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik#undef ZERO 2688101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik 2689101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzikstatic void mv6_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio) 2690101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik{ 2691101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik u32 tmp; 2692101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik 2693101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik mv5_reset_flash(hpriv, mmio); 2694101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik 26958e7decdb8b132ee970a2636931b7653dec6af472Mark Lord tmp = readl(mmio + MV_GPIO_PORT_CTL_OFS); 2696101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik tmp &= 0x3; 2697101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik tmp |= (1 << 5) | (1 << 6); 26988e7decdb8b132ee970a2636931b7653dec6af472Mark Lord writel(tmp, mmio + MV_GPIO_PORT_CTL_OFS); 2699101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik} 2700101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik 2701101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik/** 2702101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik * mv6_reset_hc - Perform the 6xxx global soft reset 2703101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik * @mmio: base address of the HBA 2704101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik * 2705101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik * This routine only applies to 6xxx parts. 2706101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik * 2707101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik * LOCKING: 2708101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik * Inherited from caller. 2709101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik */ 2710c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzikstatic int mv6_reset_hc(struct mv_host_priv *hpriv, void __iomem *mmio, 2711c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik unsigned int n_hc) 2712101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik{ 2713101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik void __iomem *reg = mmio + PCI_MAIN_CMD_STS_OFS; 2714101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik int i, rc = 0; 2715101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik u32 t; 2716101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik 2717101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik /* Following procedure defined in PCI "main command and status 2718101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik * register" table. 2719101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik */ 2720101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik t = readl(reg); 2721101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik writel(t | STOP_PCI_MASTER, reg); 2722101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik 2723101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik for (i = 0; i < 1000; i++) { 2724101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik udelay(1); 2725101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik t = readl(reg); 27262dcb407e61458ded17503d6bd12b8c064965368bJeff Garzik if (PCI_MASTER_EMPTY & t) 2727101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik break; 2728101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik } 2729101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik if (!(PCI_MASTER_EMPTY & t)) { 2730101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik printk(KERN_ERR DRV_NAME ": PCI master won't flush\n"); 2731101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik rc = 1; 2732101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik goto done; 2733101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik } 2734101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik 2735101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik /* set reset */ 2736101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik i = 5; 2737101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik do { 2738101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik writel(t | GLOB_SFT_RST, reg); 2739101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik t = readl(reg); 2740101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik udelay(1); 2741101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik } while (!(GLOB_SFT_RST & t) && (i-- > 0)); 2742101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik 2743101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik if (!(GLOB_SFT_RST & t)) { 2744101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik printk(KERN_ERR DRV_NAME ": can't set global reset\n"); 2745101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik rc = 1; 2746101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik goto done; 2747101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik } 2748101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik 2749101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik /* clear reset and *reenable the PCI master* (not mentioned in spec) */ 2750101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik i = 5; 2751101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik do { 2752101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik writel(t & ~(GLOB_SFT_RST | STOP_PCI_MASTER), reg); 2753101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik t = readl(reg); 2754101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik udelay(1); 2755101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik } while ((GLOB_SFT_RST & t) && (i-- > 0)); 2756101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik 2757101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik if (GLOB_SFT_RST & t) { 2758101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik printk(KERN_ERR DRV_NAME ": can't clear global reset\n"); 2759101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik rc = 1; 2760101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik } 2761101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzikdone: 2762101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik return rc; 2763101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik} 2764101ffae26c23ea928fce6d31a8b4901327d91a15Jeff Garzik 276547c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzikstatic void mv6_read_preamp(struct mv_host_priv *hpriv, int idx, 2766ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik void __iomem *mmio) 2767ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik{ 2768ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik void __iomem *port_mmio; 2769ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik u32 tmp; 2770ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik 27718e7decdb8b132ee970a2636931b7653dec6af472Mark Lord tmp = readl(mmio + MV_RESET_CFG_OFS); 2772ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik if ((tmp & (1 << 0)) == 0) { 277347c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik hpriv->signal[idx].amps = 0x7 << 8; 2774ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik hpriv->signal[idx].pre = 0x1 << 5; 2775ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik return; 2776ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik } 2777ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik 2778ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik port_mmio = mv_port_base(mmio, idx); 2779ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik tmp = readl(port_mmio + PHY_MODE2); 2780ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik 2781ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik hpriv->signal[idx].amps = tmp & 0x700; /* bits 10:8 */ 2782ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik hpriv->signal[idx].pre = tmp & 0xe0; /* bits 7:5 */ 2783ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik} 2784ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik 278547c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzikstatic void mv6_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio) 2786ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik{ 27878e7decdb8b132ee970a2636931b7653dec6af472Mark Lord writel(0x00000060, mmio + MV_GPIO_PORT_CTL_OFS); 2788ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik} 2789ba3fe8fb6a469390a14379519915f3c39a973d99Jeff Garzik 2790c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzikstatic void mv6_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio, 27912a47ce06d534692f9bd2bf4e90a20fc9b1054c39Jeff Garzik unsigned int port) 2792bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik{ 2793c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik void __iomem *port_mmio = mv_port_base(mmio, port); 2794c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2795bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik u32 hp_flags = hpriv->hp_flags; 279647c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik int fix_phy_mode2 = 279747c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik hp_flags & (MV_HP_ERRATA_60X1B2 | MV_HP_ERRATA_60X1C0); 2798bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik int fix_phy_mode4 = 279947c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik hp_flags & (MV_HP_ERRATA_60X1B2 | MV_HP_ERRATA_60X1C0); 28008c30a8b9b574cf6c51e207464b852a6f559da153Mark Lord u32 m2, m3; 280147c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik 280247c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik if (fix_phy_mode2) { 280347c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik m2 = readl(port_mmio + PHY_MODE2); 280447c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik m2 &= ~(1 << 16); 280547c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik m2 |= (1 << 31); 280647c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik writel(m2, port_mmio + PHY_MODE2); 280747c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik 280847c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik udelay(200); 280947c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik 281047c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik m2 = readl(port_mmio + PHY_MODE2); 281147c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik m2 &= ~((1 << 16) | (1 << 31)); 281247c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik writel(m2, port_mmio + PHY_MODE2); 281347c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik 281447c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik udelay(200); 281547c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik } 281647c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik 28178c30a8b9b574cf6c51e207464b852a6f559da153Mark Lord /* 28188c30a8b9b574cf6c51e207464b852a6f559da153Mark Lord * Gen-II/IIe PHY_MODE3 errata RM#2: 28198c30a8b9b574cf6c51e207464b852a6f559da153Mark Lord * Achieves better receiver noise performance than the h/w default: 28208c30a8b9b574cf6c51e207464b852a6f559da153Mark Lord */ 28218c30a8b9b574cf6c51e207464b852a6f559da153Mark Lord m3 = readl(port_mmio + PHY_MODE3); 28228c30a8b9b574cf6c51e207464b852a6f559da153Mark Lord m3 = (m3 & 0x1f) | (0x5555601 << 5); 2823bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik 28240388a8c0d54aa039758a8eca68d82325a563f8dbMark Lord /* Guideline 88F5182 (GL# SATA-S11) */ 28250388a8c0d54aa039758a8eca68d82325a563f8dbMark Lord if (IS_SOC(hpriv)) 28260388a8c0d54aa039758a8eca68d82325a563f8dbMark Lord m3 &= ~0x1c; 28270388a8c0d54aa039758a8eca68d82325a563f8dbMark Lord 2828bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik if (fix_phy_mode4) { 2829ba069e376cc0801cd28352ca5986ce20413acb21Mark Lord u32 m4 = readl(port_mmio + PHY_MODE4); 2830ba069e376cc0801cd28352ca5986ce20413acb21Mark Lord /* 2831ba069e376cc0801cd28352ca5986ce20413acb21Mark Lord * Enforce reserved-bit restrictions on GenIIe devices only. 2832ba069e376cc0801cd28352ca5986ce20413acb21Mark Lord * For earlier chipsets, force only the internal config field 2833ba069e376cc0801cd28352ca5986ce20413acb21Mark Lord * (workaround for errata FEr SATA#10 part 1). 2834ba069e376cc0801cd28352ca5986ce20413acb21Mark Lord */ 28358c30a8b9b574cf6c51e207464b852a6f559da153Mark Lord if (IS_GEN_IIE(hpriv)) 2836ba069e376cc0801cd28352ca5986ce20413acb21Mark Lord m4 = (m4 & ~PHY_MODE4_RSVD_ZEROS) | PHY_MODE4_RSVD_ONES; 2837ba069e376cc0801cd28352ca5986ce20413acb21Mark Lord else 2838ba069e376cc0801cd28352ca5986ce20413acb21Mark Lord m4 = (m4 & ~PHY_MODE4_CFG_MASK) | PHY_MODE4_CFG_VALUE; 28398c30a8b9b574cf6c51e207464b852a6f559da153Mark Lord writel(m4, port_mmio + PHY_MODE4); 2840bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik } 2841b406c7a6655da7a2fcd9f72e41262f93ff707748Mark Lord /* 2842b406c7a6655da7a2fcd9f72e41262f93ff707748Mark Lord * Workaround for 60x1-B2 errata SATA#13: 2843b406c7a6655da7a2fcd9f72e41262f93ff707748Mark Lord * Any write to PHY_MODE4 (above) may corrupt PHY_MODE3, 2844b406c7a6655da7a2fcd9f72e41262f93ff707748Mark Lord * so we must always rewrite PHY_MODE3 after PHY_MODE4. 2845b406c7a6655da7a2fcd9f72e41262f93ff707748Mark Lord */ 2846b406c7a6655da7a2fcd9f72e41262f93ff707748Mark Lord writel(m3, port_mmio + PHY_MODE3); 2847bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik 2848bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik /* Revert values of pre-emphasis and signal amps to the saved ones */ 2849bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik m2 = readl(port_mmio + PHY_MODE2); 2850bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik 2851bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik m2 &= ~MV_M2_PREAMP_MASK; 28522a47ce06d534692f9bd2bf4e90a20fc9b1054c39Jeff Garzik m2 |= hpriv->signal[port].amps; 28532a47ce06d534692f9bd2bf4e90a20fc9b1054c39Jeff Garzik m2 |= hpriv->signal[port].pre; 285447c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik m2 &= ~(1 << 16); 2855bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik 2856e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik /* according to mvSata 3.6.1, some IIE values are fixed */ 2857e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik if (IS_GEN_IIE(hpriv)) { 2858e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik m2 &= ~0xC30FF01F; 2859e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik m2 |= 0x0000900F; 2860e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik } 2861e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik 2862bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik writel(m2, port_mmio + PHY_MODE2); 2863bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik} 2864bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik 2865f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara/* TODO: use the generic LED interface to configure the SATA Presence */ 2866f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara/* & Acitivy LEDs on the board */ 2867f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic void mv_soc_enable_leds(struct mv_host_priv *hpriv, 2868f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara void __iomem *mmio) 2869f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara{ 2870f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara return; 2871f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara} 2872f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 2873f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic void mv_soc_read_preamp(struct mv_host_priv *hpriv, int idx, 2874f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara void __iomem *mmio) 2875f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara{ 2876f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara void __iomem *port_mmio; 2877f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara u32 tmp; 2878f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 2879f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara port_mmio = mv_port_base(mmio, idx); 2880f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara tmp = readl(port_mmio + PHY_MODE2); 2881f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 2882f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara hpriv->signal[idx].amps = tmp & 0x700; /* bits 10:8 */ 2883f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara hpriv->signal[idx].pre = tmp & 0xe0; /* bits 7:5 */ 2884f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara} 2885f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 2886f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara#undef ZERO 2887f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara#define ZERO(reg) writel(0, port_mmio + (reg)) 2888f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic void mv_soc_reset_hc_port(struct mv_host_priv *hpriv, 2889f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara void __iomem *mmio, unsigned int port) 2890f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara{ 2891f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara void __iomem *port_mmio = mv_port_base(mmio, port); 2892f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 2893e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord mv_reset_channel(hpriv, mmio, port); 2894f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 2895f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara ZERO(0x028); /* command */ 2896f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara writel(0x101f, port_mmio + EDMA_CFG_OFS); 2897f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara ZERO(0x004); /* timer */ 2898f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara ZERO(0x008); /* irq err cause */ 2899f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara ZERO(0x00c); /* irq err mask */ 2900f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara ZERO(0x010); /* rq bah */ 2901f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara ZERO(0x014); /* rq inp */ 2902f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara ZERO(0x018); /* rq outp */ 2903f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara ZERO(0x01c); /* respq bah */ 2904f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara ZERO(0x024); /* respq outp */ 2905f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara ZERO(0x020); /* respq inp */ 2906f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara ZERO(0x02c); /* test control */ 29078e7decdb8b132ee970a2636931b7653dec6af472Mark Lord writel(0xbc, port_mmio + EDMA_IORDY_TMOUT_OFS); 2908f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara} 2909f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 2910f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara#undef ZERO 2911f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 2912f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara#define ZERO(reg) writel(0, hc_mmio + (reg)) 2913f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic void mv_soc_reset_one_hc(struct mv_host_priv *hpriv, 2914f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara void __iomem *mmio) 2915f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara{ 2916f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara void __iomem *hc_mmio = mv_hc_base(mmio, 0); 2917f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 2918f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara ZERO(0x00c); 2919f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara ZERO(0x010); 2920f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara ZERO(0x014); 2921f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 2922f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara} 2923f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 2924f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara#undef ZERO 2925f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 2926f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic int mv_soc_reset_hc(struct mv_host_priv *hpriv, 2927f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara void __iomem *mmio, unsigned int n_hc) 2928f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara{ 2929f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara unsigned int port; 2930f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 2931f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara for (port = 0; port < hpriv->n_ports; port++) 2932f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara mv_soc_reset_hc_port(hpriv, mmio, port); 2933f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 2934f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara mv_soc_reset_one_hc(hpriv, mmio); 2935f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 2936f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara return 0; 2937f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara} 2938f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 2939f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic void mv_soc_reset_flash(struct mv_host_priv *hpriv, 2940f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara void __iomem *mmio) 2941f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara{ 2942f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara return; 2943f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara} 2944f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 2945f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic void mv_soc_reset_bus(struct ata_host *host, void __iomem *mmio) 2946f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara{ 2947f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara return; 2948f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara} 2949f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 29508e7decdb8b132ee970a2636931b7653dec6af472Mark Lordstatic void mv_setup_ifcfg(void __iomem *port_mmio, int want_gen2i) 2951b67a1064cb1c1d3b43e01e8b43a6a8dcdefed733Mark Lord{ 29528e7decdb8b132ee970a2636931b7653dec6af472Mark Lord u32 ifcfg = readl(port_mmio + SATA_INTERFACE_CFG_OFS); 2953b67a1064cb1c1d3b43e01e8b43a6a8dcdefed733Mark Lord 29548e7decdb8b132ee970a2636931b7653dec6af472Mark Lord ifcfg = (ifcfg & 0xf7f) | 0x9b1000; /* from chip spec */ 2955b67a1064cb1c1d3b43e01e8b43a6a8dcdefed733Mark Lord if (want_gen2i) 29568e7decdb8b132ee970a2636931b7653dec6af472Mark Lord ifcfg |= (1 << 7); /* enable gen2i speed */ 29578e7decdb8b132ee970a2636931b7653dec6af472Mark Lord writelfl(ifcfg, port_mmio + SATA_INTERFACE_CFG_OFS); 2958b67a1064cb1c1d3b43e01e8b43a6a8dcdefed733Mark Lord} 2959b67a1064cb1c1d3b43e01e8b43a6a8dcdefed733Mark Lord 2960e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lordstatic void mv_reset_channel(struct mv_host_priv *hpriv, void __iomem *mmio, 2961c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik unsigned int port_no) 2962c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik{ 2963c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik void __iomem *port_mmio = mv_port_base(mmio, port_no); 2964c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 29658e7decdb8b132ee970a2636931b7653dec6af472Mark Lord /* 29668e7decdb8b132ee970a2636931b7653dec6af472Mark Lord * The datasheet warns against setting EDMA_RESET when EDMA is active 29678e7decdb8b132ee970a2636931b7653dec6af472Mark Lord * (but doesn't say what the problem might be). So we first try 29688e7decdb8b132ee970a2636931b7653dec6af472Mark Lord * to disable the EDMA engine before doing the EDMA_RESET operation. 29698e7decdb8b132ee970a2636931b7653dec6af472Mark Lord */ 29700d8be5cbff8fd95da72d749a64e150b851f470c6Mark Lord mv_stop_edma_engine(port_mmio); 29718e7decdb8b132ee970a2636931b7653dec6af472Mark Lord writelfl(EDMA_RESET, port_mmio + EDMA_CMD_OFS); 2972c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2973b67a1064cb1c1d3b43e01e8b43a6a8dcdefed733Mark Lord if (!IS_GEN_I(hpriv)) { 29748e7decdb8b132ee970a2636931b7653dec6af472Mark Lord /* Enable 3.0gb/s link speed: this survives EDMA_RESET */ 29758e7decdb8b132ee970a2636931b7653dec6af472Mark Lord mv_setup_ifcfg(port_mmio, 1); 2976c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik } 2977b67a1064cb1c1d3b43e01e8b43a6a8dcdefed733Mark Lord /* 29788e7decdb8b132ee970a2636931b7653dec6af472Mark Lord * Strobing EDMA_RESET here causes a hard reset of the SATA transport, 2979b67a1064cb1c1d3b43e01e8b43a6a8dcdefed733Mark Lord * link, and physical layers. It resets all SATA interface registers 2980b67a1064cb1c1d3b43e01e8b43a6a8dcdefed733Mark Lord * (except for SATA_INTERFACE_CFG), and issues a COMRESET to the dev. 2981c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik */ 29828e7decdb8b132ee970a2636931b7653dec6af472Mark Lord writelfl(EDMA_RESET, port_mmio + EDMA_CMD_OFS); 2983b67a1064cb1c1d3b43e01e8b43a6a8dcdefed733Mark Lord udelay(25); /* allow reset propagation */ 2984c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik writelfl(0, port_mmio + EDMA_CMD_OFS); 2985c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2986c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik hpriv->ops->phy_errata(hpriv, mmio, port_no); 2987c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2988ee9ccdf70163ca6408f6965e0fbc65baeac7312cJeff Garzik if (IS_GEN_I(hpriv)) 2989c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik mdelay(1); 2990c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik} 2991c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik 2992e49856d82a887ce365637176f9f99ab68076eae8Mark Lordstatic void mv_pmp_select(struct ata_port *ap, int pmp) 299320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ{ 2994e49856d82a887ce365637176f9f99ab68076eae8Mark Lord if (sata_pmp_supported(ap)) { 2995e49856d82a887ce365637176f9f99ab68076eae8Mark Lord void __iomem *port_mmio = mv_ap_base(ap); 2996e49856d82a887ce365637176f9f99ab68076eae8Mark Lord u32 reg = readl(port_mmio + SATA_IFCTL_OFS); 2997e49856d82a887ce365637176f9f99ab68076eae8Mark Lord int old = reg & 0xf; 299822374677d18c5eeefd3a283431d312b8c44fef02Jeff Garzik 2999e49856d82a887ce365637176f9f99ab68076eae8Mark Lord if (old != pmp) { 3000e49856d82a887ce365637176f9f99ab68076eae8Mark Lord reg = (reg & ~0xf) | pmp; 3001e49856d82a887ce365637176f9f99ab68076eae8Mark Lord writelfl(reg, port_mmio + SATA_IFCTL_OFS); 3002e49856d82a887ce365637176f9f99ab68076eae8Mark Lord } 300322374677d18c5eeefd3a283431d312b8c44fef02Jeff Garzik } 300420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ} 300520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 3006e49856d82a887ce365637176f9f99ab68076eae8Mark Lordstatic int mv_pmp_hardreset(struct ata_link *link, unsigned int *class, 3007e49856d82a887ce365637176f9f99ab68076eae8Mark Lord unsigned long deadline) 300822374677d18c5eeefd3a283431d312b8c44fef02Jeff Garzik{ 3009e49856d82a887ce365637176f9f99ab68076eae8Mark Lord mv_pmp_select(link->ap, sata_srst_pmp(link)); 3010e49856d82a887ce365637176f9f99ab68076eae8Mark Lord return sata_std_hardreset(link, class, deadline); 3011e49856d82a887ce365637176f9f99ab68076eae8Mark Lord} 3012bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 3013e49856d82a887ce365637176f9f99ab68076eae8Mark Lordstatic int mv_softreset(struct ata_link *link, unsigned int *class, 3014e49856d82a887ce365637176f9f99ab68076eae8Mark Lord unsigned long deadline) 3015e49856d82a887ce365637176f9f99ab68076eae8Mark Lord{ 3016e49856d82a887ce365637176f9f99ab68076eae8Mark Lord mv_pmp_select(link->ap, sata_srst_pmp(link)); 3017e49856d82a887ce365637176f9f99ab68076eae8Mark Lord return ata_sff_softreset(link, class, deadline); 301822374677d18c5eeefd3a283431d312b8c44fef02Jeff Garzik} 301922374677d18c5eeefd3a283431d312b8c44fef02Jeff Garzik 3020cc0680a580b5be81a1ca321b58f8e9b80b5c1052Tejun Heostatic int mv_hardreset(struct ata_link *link, unsigned int *class, 3021bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik unsigned long deadline) 302231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ{ 3023cc0680a580b5be81a1ca321b58f8e9b80b5c1052Tejun Heo struct ata_port *ap = link->ap; 3024bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik struct mv_host_priv *hpriv = ap->host->private_data; 3025b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord struct mv_port_priv *pp = ap->private_data; 3026f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara void __iomem *mmio = hpriv->base; 30270d8be5cbff8fd95da72d749a64e150b851f470c6Mark Lord int rc, attempts = 0, extra = 0; 30280d8be5cbff8fd95da72d749a64e150b851f470c6Mark Lord u32 sstatus; 30290d8be5cbff8fd95da72d749a64e150b851f470c6Mark Lord bool online; 303031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 3031e12bef50b7660cf7c19d1cd3eac381b9eff734d7Mark Lord mv_reset_channel(hpriv, mmio, ap->port_no); 3032b562468cc3bd0c81decba1f5f39a7173f839e57eMark Lord pp->pp_flags &= ~MV_PP_FLAG_EDMA_EN; 3033bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 30340d8be5cbff8fd95da72d749a64e150b851f470c6Mark Lord /* Workaround for errata FEr SATA#10 (part 2) */ 30350d8be5cbff8fd95da72d749a64e150b851f470c6Mark Lord do { 303617c5aab5b34e351531466e35b154ca86db7d46a9Mark Lord const unsigned long *timing = 303717c5aab5b34e351531466e35b154ca86db7d46a9Mark Lord sata_ehc_deb_timing(&link->eh_context); 3038bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 303917c5aab5b34e351531466e35b154ca86db7d46a9Mark Lord rc = sata_link_hardreset(link, timing, deadline + extra, 304017c5aab5b34e351531466e35b154ca86db7d46a9Mark Lord &online, NULL); 30419dcffd99d0b1c0c1b8b2c0f85d240e791eca1055Mark Lord rc = online ? -EAGAIN : rc; 304217c5aab5b34e351531466e35b154ca86db7d46a9Mark Lord if (rc) 30430d8be5cbff8fd95da72d749a64e150b851f470c6Mark Lord return rc; 30440d8be5cbff8fd95da72d749a64e150b851f470c6Mark Lord sata_scr_read(link, SCR_STATUS, &sstatus); 30450d8be5cbff8fd95da72d749a64e150b851f470c6Mark Lord if (!IS_GEN_I(hpriv) && ++attempts >= 5 && sstatus == 0x121) { 30460d8be5cbff8fd95da72d749a64e150b851f470c6Mark Lord /* Force 1.5gb/s link speed and try again */ 30478e7decdb8b132ee970a2636931b7653dec6af472Mark Lord mv_setup_ifcfg(mv_ap_base(ap), 0); 30480d8be5cbff8fd95da72d749a64e150b851f470c6Mark Lord if (time_after(jiffies + HZ, deadline)) 30490d8be5cbff8fd95da72d749a64e150b851f470c6Mark Lord extra = HZ; /* only extend it once, max */ 30500d8be5cbff8fd95da72d749a64e150b851f470c6Mark Lord } 30510d8be5cbff8fd95da72d749a64e150b851f470c6Mark Lord } while (sstatus != 0x0 && sstatus != 0x113 && sstatus != 0x123); 305208da175937a35d34a83eaefbb3458472eb1a89d4Mark Lord mv_save_cached_regs(ap); 305366e57a2cb0c538d4f84a7233c224735fe1eaa672Mark Lord mv_edma_cfg(ap, 0, 0); 3054bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 305517c5aab5b34e351531466e35b154ca86db7d46a9Mark Lord return rc; 3056bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik} 3057bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 3058bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzikstatic void mv_eh_freeze(struct ata_port *ap) 3059bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik{ 30601cfd19aeb8c8b6291a9d11143b4d8f3dac508ed4Mark Lord mv_stop_edma(ap); 3061c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord mv_enable_port_irqs(ap, 0); 3062bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik} 3063bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 3064bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzikstatic void mv_eh_thaw(struct ata_port *ap) 3065bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik{ 3066f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara struct mv_host_priv *hpriv = ap->host->private_data; 3067c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord unsigned int port = ap->port_no; 3068c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord unsigned int hardport = mv_hardport_from_port(port); 30691cfd19aeb8c8b6291a9d11143b4d8f3dac508ed4Mark Lord void __iomem *hc_mmio = mv_hc_base_from_port(hpriv->base, port); 3070bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik void __iomem *port_mmio = mv_ap_base(ap); 3071c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord u32 hc_irq_cause; 3072bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 3073bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik /* clear EDMA errors on this port */ 3074bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik writel(0, port_mmio + EDMA_ERR_IRQ_CAUSE_OFS); 3075bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 3076bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik /* clear pending irq events */ 3077cae6edc3b5a536119374a5439d9b253cb26f05e1Mark Lord hc_irq_cause = ~((DEV_IRQ | DMA_IRQ) << hardport); 30781cfd19aeb8c8b6291a9d11143b4d8f3dac508ed4Mark Lord writelfl(hc_irq_cause, hc_mmio + HC_IRQ_CAUSE_OFS); 3079bdd4dddee325a7dce3e84cf48201a06aa8508aa4Jeff Garzik 308088e675e193159b9891c1c576de4348eaf490f5d0Mark Lord mv_enable_port_irqs(ap, ERR_IRQ); 308131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ} 308231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 308305b308e1df6d9d673daedb517969241f41278b52Brett Russ/** 308405b308e1df6d9d673daedb517969241f41278b52Brett Russ * mv_port_init - Perform some early initialization on a single port. 308505b308e1df6d9d673daedb517969241f41278b52Brett Russ * @port: libata data structure storing shadow register addresses 308605b308e1df6d9d673daedb517969241f41278b52Brett Russ * @port_mmio: base address of the port 308705b308e1df6d9d673daedb517969241f41278b52Brett Russ * 308805b308e1df6d9d673daedb517969241f41278b52Brett Russ * Initialize shadow register mmio addresses, clear outstanding 308905b308e1df6d9d673daedb517969241f41278b52Brett Russ * interrupts on the port, and unmask interrupts for the future 309005b308e1df6d9d673daedb517969241f41278b52Brett Russ * start of the port. 309105b308e1df6d9d673daedb517969241f41278b52Brett Russ * 309205b308e1df6d9d673daedb517969241f41278b52Brett Russ * LOCKING: 309305b308e1df6d9d673daedb517969241f41278b52Brett Russ * Inherited from caller. 309405b308e1df6d9d673daedb517969241f41278b52Brett Russ */ 309531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russstatic void mv_port_init(struct ata_ioports *port, void __iomem *port_mmio) 309620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ{ 30970d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo void __iomem *shd_base = port_mmio + SHD_BLK_OFS; 309831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ unsigned serr_ofs; 309931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 31008b260248d9e0e8b64bb72fd4dee03ad86984c344Jeff Garzik /* PIO related setup 310131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ */ 310231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ port->data_addr = shd_base + (sizeof(u32) * ATA_REG_DATA); 31038b260248d9e0e8b64bb72fd4dee03ad86984c344Jeff Garzik port->error_addr = 310431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ port->feature_addr = shd_base + (sizeof(u32) * ATA_REG_ERR); 310531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ port->nsect_addr = shd_base + (sizeof(u32) * ATA_REG_NSECT); 310631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ port->lbal_addr = shd_base + (sizeof(u32) * ATA_REG_LBAL); 310731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ port->lbam_addr = shd_base + (sizeof(u32) * ATA_REG_LBAM); 310831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ port->lbah_addr = shd_base + (sizeof(u32) * ATA_REG_LBAH); 310931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ port->device_addr = shd_base + (sizeof(u32) * ATA_REG_DEVICE); 31108b260248d9e0e8b64bb72fd4dee03ad86984c344Jeff Garzik port->status_addr = 311131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ port->command_addr = shd_base + (sizeof(u32) * ATA_REG_STATUS); 311231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ /* special case: control/altstatus doesn't have ATA_REG_ address */ 311331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ port->altstatus_addr = port->ctl_addr = shd_base + SHD_CTL_AST_OFS; 311431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 311531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ /* unused: */ 31168d9db2d2fbae9e05022825c32f86e00c8e342860Randy Dunlap port->cmd_addr = port->bmdma_addr = port->scr_addr = NULL; 311720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 311831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ /* Clear any currently outstanding port interrupt conditions */ 311931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ serr_ofs = mv_scr_offset(SCR_ERROR); 312031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ writelfl(readl(port_mmio + serr_ofs), port_mmio + serr_ofs); 312131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ writelfl(0, port_mmio + EDMA_ERR_IRQ_CAUSE_OFS); 312231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 3123646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord /* unmask all non-transient EDMA error interrupts */ 3124646a4da514f2555298481cb00dc5b3eb02b21b72Mark Lord writelfl(~EDMA_ERR_IRQ_TRANSIENT, port_mmio + EDMA_ERR_IRQ_MASK_OFS); 312520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 31268b260248d9e0e8b64bb72fd4dee03ad86984c344Jeff Garzik VPRINTK("EDMA cfg=0x%08x EDMA IRQ err cause/mask=0x%08x/0x%08x\n", 312731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ readl(port_mmio + EDMA_CFG_OFS), 312831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ readl(port_mmio + EDMA_ERR_IRQ_CAUSE_OFS), 312931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ readl(port_mmio + EDMA_ERR_IRQ_MASK_OFS)); 313020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ} 313120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 3132616d4a98ad8749ebe17a8fcac67df65c321350acMark Lordstatic unsigned int mv_in_pcix_mode(struct ata_host *host) 3133616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord{ 3134616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord struct mv_host_priv *hpriv = host->private_data; 3135616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord void __iomem *mmio = hpriv->base; 3136616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord u32 reg; 3137616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord 31381f39847255a02c69190ae30c33b8ccf4c10840dfMark Lord if (IS_SOC(hpriv) || !IS_PCIE(hpriv)) 3139616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord return 0; /* not PCI-X capable */ 3140616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord reg = readl(mmio + MV_PCI_MODE_OFS); 3141616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord if ((reg & MV_PCI_MODE_MASK) == 0) 3142616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord return 0; /* conventional PCI mode */ 3143616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord return 1; /* chip is in PCI-X mode */ 3144616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord} 3145616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord 3146616d4a98ad8749ebe17a8fcac67df65c321350acMark Lordstatic int mv_pci_cut_through_okay(struct ata_host *host) 3147616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord{ 3148616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord struct mv_host_priv *hpriv = host->private_data; 3149616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord void __iomem *mmio = hpriv->base; 3150616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord u32 reg; 3151616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord 3152616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord if (!mv_in_pcix_mode(host)) { 3153616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord reg = readl(mmio + PCI_COMMAND_OFS); 3154616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord if (reg & PCI_COMMAND_MRDTRIG) 3155616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord return 0; /* not okay */ 3156616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord } 3157616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord return 1; /* okay */ 3158616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord} 3159616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord 31604447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heostatic int mv_chip_id(struct ata_host *host, unsigned int board_idx) 3161bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik{ 31624447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo struct pci_dev *pdev = to_pci_dev(host->dev); 31634447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo struct mv_host_priv *hpriv = host->private_data; 3164bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik u32 hp_flags = hpriv->hp_flags; 3165bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik 31665796d1c4c89efff823259fda35b08ea66ebf8b23Jeff Garzik switch (board_idx) { 316747c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik case chip_5080: 316847c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik hpriv->ops = &mv5xxx_ops; 3169ee9ccdf70163ca6408f6965e0fbc65baeac7312cJeff Garzik hp_flags |= MV_HP_GEN_I; 317047c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik 317144c10138fd4bbc4b6d6bff0873c24902f2a9da65Auke Kok switch (pdev->revision) { 317247c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik case 0x1: 317347c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik hp_flags |= MV_HP_ERRATA_50XXB0; 317447c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik break; 317547c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik case 0x3: 317647c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik hp_flags |= MV_HP_ERRATA_50XXB2; 317747c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik break; 317847c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik default: 317947c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik dev_printk(KERN_WARNING, &pdev->dev, 318047c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik "Applying 50XXB2 workarounds to unknown rev\n"); 318147c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik hp_flags |= MV_HP_ERRATA_50XXB2; 318247c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik break; 318347c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik } 318447c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik break; 318547c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik 3186bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik case chip_504x: 3187bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik case chip_508x: 318847c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik hpriv->ops = &mv5xxx_ops; 3189ee9ccdf70163ca6408f6965e0fbc65baeac7312cJeff Garzik hp_flags |= MV_HP_GEN_I; 3190bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik 319144c10138fd4bbc4b6d6bff0873c24902f2a9da65Auke Kok switch (pdev->revision) { 319247c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik case 0x0: 319347c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik hp_flags |= MV_HP_ERRATA_50XXB0; 319447c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik break; 319547c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik case 0x3: 319647c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik hp_flags |= MV_HP_ERRATA_50XXB2; 319747c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik break; 319847c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik default: 319947c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik dev_printk(KERN_WARNING, &pdev->dev, 320047c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik "Applying B2 workarounds to unknown rev\n"); 320147c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik hp_flags |= MV_HP_ERRATA_50XXB2; 320247c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik break; 3203bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik } 3204bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik break; 3205bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik 3206bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik case chip_604x: 3207bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik case chip_608x: 320847c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik hpriv->ops = &mv6xxx_ops; 3209ee9ccdf70163ca6408f6965e0fbc65baeac7312cJeff Garzik hp_flags |= MV_HP_GEN_II; 321047c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik 321144c10138fd4bbc4b6d6bff0873c24902f2a9da65Auke Kok switch (pdev->revision) { 321247c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik case 0x7: 321347c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik hp_flags |= MV_HP_ERRATA_60X1B2; 321447c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik break; 321547c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik case 0x9: 321647c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik hp_flags |= MV_HP_ERRATA_60X1C0; 3217bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik break; 3218bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik default: 3219bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik dev_printk(KERN_WARNING, &pdev->dev, 322047c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik "Applying B2 workarounds to unknown rev\n"); 322147c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik hp_flags |= MV_HP_ERRATA_60X1B2; 3222bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik break; 3223bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik } 3224bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik break; 3225bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik 3226e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik case chip_7042: 3227616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord hp_flags |= MV_HP_PCIE | MV_HP_CUT_THROUGH; 3228306b30f74d37f289033c696285e07ce0158a5d7bMark Lord if (pdev->vendor == PCI_VENDOR_ID_TTI && 3229306b30f74d37f289033c696285e07ce0158a5d7bMark Lord (pdev->device == 0x2300 || pdev->device == 0x2310)) 3230306b30f74d37f289033c696285e07ce0158a5d7bMark Lord { 32314e5200334e03e5620aa19d538300c13db270a063Mark Lord /* 32324e5200334e03e5620aa19d538300c13db270a063Mark Lord * Highpoint RocketRAID PCIe 23xx series cards: 32334e5200334e03e5620aa19d538300c13db270a063Mark Lord * 32344e5200334e03e5620aa19d538300c13db270a063Mark Lord * Unconfigured drives are treated as "Legacy" 32354e5200334e03e5620aa19d538300c13db270a063Mark Lord * by the BIOS, and it overwrites sector 8 with 32364e5200334e03e5620aa19d538300c13db270a063Mark Lord * a "Lgcy" metadata block prior to Linux boot. 32374e5200334e03e5620aa19d538300c13db270a063Mark Lord * 32384e5200334e03e5620aa19d538300c13db270a063Mark Lord * Configured drives (RAID or JBOD) leave sector 8 32394e5200334e03e5620aa19d538300c13db270a063Mark Lord * alone, but instead overwrite a high numbered 32404e5200334e03e5620aa19d538300c13db270a063Mark Lord * sector for the RAID metadata. This sector can 32414e5200334e03e5620aa19d538300c13db270a063Mark Lord * be determined exactly, by truncating the physical 32424e5200334e03e5620aa19d538300c13db270a063Mark Lord * drive capacity to a nice even GB value. 32434e5200334e03e5620aa19d538300c13db270a063Mark Lord * 32444e5200334e03e5620aa19d538300c13db270a063Mark Lord * RAID metadata is at: (dev->n_sectors & ~0xfffff) 32454e5200334e03e5620aa19d538300c13db270a063Mark Lord * 32464e5200334e03e5620aa19d538300c13db270a063Mark Lord * Warn the user, lest they think we're just buggy. 32474e5200334e03e5620aa19d538300c13db270a063Mark Lord */ 32484e5200334e03e5620aa19d538300c13db270a063Mark Lord printk(KERN_WARNING DRV_NAME ": Highpoint RocketRAID" 32494e5200334e03e5620aa19d538300c13db270a063Mark Lord " BIOS CORRUPTS DATA on all attached drives," 32504e5200334e03e5620aa19d538300c13db270a063Mark Lord " regardless of if/how they are configured." 32514e5200334e03e5620aa19d538300c13db270a063Mark Lord " BEWARE!\n"); 32524e5200334e03e5620aa19d538300c13db270a063Mark Lord printk(KERN_WARNING DRV_NAME ": For data safety, do not" 32534e5200334e03e5620aa19d538300c13db270a063Mark Lord " use sectors 8-9 on \"Legacy\" drives," 32544e5200334e03e5620aa19d538300c13db270a063Mark Lord " and avoid the final two gigabytes on" 32554e5200334e03e5620aa19d538300c13db270a063Mark Lord " all RocketRAID BIOS initialized drives.\n"); 3256306b30f74d37f289033c696285e07ce0158a5d7bMark Lord } 32578e7decdb8b132ee970a2636931b7653dec6af472Mark Lord /* drop through */ 3258e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik case chip_6042: 3259e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik hpriv->ops = &mv6xxx_ops; 3260e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik hp_flags |= MV_HP_GEN_IIE; 3261616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord if (board_idx == chip_6042 && mv_pci_cut_through_okay(host)) 3262616d4a98ad8749ebe17a8fcac67df65c321350acMark Lord hp_flags |= MV_HP_CUT_THROUGH; 3263e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik 326444c10138fd4bbc4b6d6bff0873c24902f2a9da65Auke Kok switch (pdev->revision) { 32655cf73bfb061552aa18d816d2859409be9ace5306Mark Lord case 0x2: /* Rev.B0: the first/only public release */ 3266e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik hp_flags |= MV_HP_ERRATA_60X1C0; 3267e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik break; 3268e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik default: 3269e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik dev_printk(KERN_WARNING, &pdev->dev, 3270e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik "Applying 60X1C0 workarounds to unknown rev\n"); 3271e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik hp_flags |= MV_HP_ERRATA_60X1C0; 3272e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik break; 3273e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik } 3274e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik break; 3275f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara case chip_soc: 3276f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara hpriv->ops = &mv_soc_ops; 3277eb3a55a9f43f0f8e770c2abf70e65bdda2d5ff1eSaeed Bishara hp_flags |= MV_HP_FLAG_SOC | MV_HP_GEN_IIE | 3278eb3a55a9f43f0f8e770c2abf70e65bdda2d5ff1eSaeed Bishara MV_HP_ERRATA_60X1C0; 3279f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara break; 3280e4e7b89280d1d666e2c09e5ad36cf071796c4c7eJeff Garzik 3281bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik default: 3282f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara dev_printk(KERN_ERR, host->dev, 32835796d1c4c89efff823259fda35b08ea66ebf8b23Jeff Garzik "BUG: invalid board index %u\n", board_idx); 3284bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik return 1; 3285bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik } 3286bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik 3287bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik hpriv->hp_flags = hp_flags; 328802a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord if (hp_flags & MV_HP_PCIE) { 328902a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord hpriv->irq_cause_ofs = PCIE_IRQ_CAUSE_OFS; 329002a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord hpriv->irq_mask_ofs = PCIE_IRQ_MASK_OFS; 329102a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord hpriv->unmask_all_irqs = PCIE_UNMASK_ALL_IRQS; 329202a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord } else { 329302a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord hpriv->irq_cause_ofs = PCI_IRQ_CAUSE_OFS; 329402a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord hpriv->irq_mask_ofs = PCI_IRQ_MASK_OFS; 329502a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord hpriv->unmask_all_irqs = PCI_UNMASK_ALL_IRQS; 329602a121da5a53d415b6596bc19cc6999d295d32a4Mark Lord } 3297bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik 3298bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik return 0; 3299bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik} 3300bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik 330105b308e1df6d9d673daedb517969241f41278b52Brett Russ/** 330247c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik * mv_init_host - Perform some early initialization of the host. 33034447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo * @host: ATA host to initialize 33044447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo * @board_idx: controller index 330505b308e1df6d9d673daedb517969241f41278b52Brett Russ * 330605b308e1df6d9d673daedb517969241f41278b52Brett Russ * If possible, do an early global reset of the host. Then do 330705b308e1df6d9d673daedb517969241f41278b52Brett Russ * our port init and clear/unmask all/relevant host interrupts. 330805b308e1df6d9d673daedb517969241f41278b52Brett Russ * 330905b308e1df6d9d673daedb517969241f41278b52Brett Russ * LOCKING: 331005b308e1df6d9d673daedb517969241f41278b52Brett Russ * Inherited from caller. 331105b308e1df6d9d673daedb517969241f41278b52Brett Russ */ 33124447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heostatic int mv_init_host(struct ata_host *host, unsigned int board_idx) 331320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ{ 331420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ int rc = 0, n_hc, port, hc; 33154447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo struct mv_host_priv *hpriv = host->private_data; 3316f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara void __iomem *mmio = hpriv->base; 331747c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik 33184447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo rc = mv_chip_id(host, board_idx); 3319bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik if (rc) 3320352fab701ca4753dd005b67ce5e512be944eb591Mark Lord goto done; 3321f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 33221f39847255a02c69190ae30c33b8ccf4c10840dfMark Lord if (IS_SOC(hpriv)) { 33237368f91926a2870a8c3f9546d86535ce71ae0757Mark Lord hpriv->main_irq_cause_addr = mmio + SOC_HC_MAIN_IRQ_CAUSE_OFS; 33247368f91926a2870a8c3f9546d86535ce71ae0757Mark Lord hpriv->main_irq_mask_addr = mmio + SOC_HC_MAIN_IRQ_MASK_OFS; 33251f39847255a02c69190ae30c33b8ccf4c10840dfMark Lord } else { 33261f39847255a02c69190ae30c33b8ccf4c10840dfMark Lord hpriv->main_irq_cause_addr = mmio + PCI_HC_MAIN_IRQ_CAUSE_OFS; 33271f39847255a02c69190ae30c33b8ccf4c10840dfMark Lord hpriv->main_irq_mask_addr = mmio + PCI_HC_MAIN_IRQ_MASK_OFS; 3328f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara } 3329352fab701ca4753dd005b67ce5e512be944eb591Mark Lord 33305d0fb2e730e2085021cf5c8b6d14983e92aea75bThomas Reitmayr /* initialize shadow irq mask with register's value */ 33315d0fb2e730e2085021cf5c8b6d14983e92aea75bThomas Reitmayr hpriv->main_irq_mask = readl(hpriv->main_irq_mask_addr); 33325d0fb2e730e2085021cf5c8b6d14983e92aea75bThomas Reitmayr 3333352fab701ca4753dd005b67ce5e512be944eb591Mark Lord /* global interrupt mask: 0 == mask everything */ 3334c4de573b14d78ac83861d81d12977457d1e9cb6dMark Lord mv_set_main_irq_mask(host, ~0, 0); 3335bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik 33364447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo n_hc = mv_get_hc_count(host->ports[0]->flags); 3337bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik 33384447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo for (port = 0; port < host->n_ports; port++) 333947c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik hpriv->ops->read_preamp(hpriv, port, mmio); 334020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 3341c9d39130123238ac18478a42e25cb7996eacfcc0Jeff Garzik rc = hpriv->ops->reset_hc(hpriv, mmio, n_hc); 334247c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik if (rc) 334320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ goto done; 334420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 3345522479fb98c6667f081e75f87e298e413c0b1db8Jeff Garzik hpriv->ops->reset_flash(hpriv, mmio); 33467bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara hpriv->ops->reset_bus(host, mmio); 334747c2b677daeed9c79ecb7167c211ff36876ea611Jeff Garzik hpriv->ops->enable_leds(hpriv, mmio); 334820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 33494447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo for (port = 0; port < host->n_ports; port++) { 3350cbcdd87593a1d85c5c4b259945a3a09eee12814dTejun Heo struct ata_port *ap = host->ports[port]; 33512a47ce06d534692f9bd2bf4e90a20fc9b1054c39Jeff Garzik void __iomem *port_mmio = mv_port_base(mmio, port); 3352cbcdd87593a1d85c5c4b259945a3a09eee12814dTejun Heo 3353cbcdd87593a1d85c5c4b259945a3a09eee12814dTejun Heo mv_port_init(&ap->ioaddr, port_mmio); 3354cbcdd87593a1d85c5c4b259945a3a09eee12814dTejun Heo 33557bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara#ifdef CONFIG_PCI 33561f39847255a02c69190ae30c33b8ccf4c10840dfMark Lord if (!IS_SOC(hpriv)) { 3357f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara unsigned int offset = port_mmio - mmio; 3358f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara ata_port_pbar_desc(ap, MV_PRIMARY_BAR, -1, "mmio"); 3359f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara ata_port_pbar_desc(ap, MV_PRIMARY_BAR, offset, "port"); 3360f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara } 33617bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara#endif 336220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ } 336320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 336420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ for (hc = 0; hc < n_hc; hc++) { 336531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ void __iomem *hc_mmio = mv_hc_base(mmio, hc); 336631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 336731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ VPRINTK("HC%i: HC config=0x%08x HC IRQ cause " 336831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ "(before clear)=0x%08x\n", hc, 336931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ readl(hc_mmio + HC_CFG_OFS), 337031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ readl(hc_mmio + HC_IRQ_CAUSE_OFS)); 337131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 337231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ /* Clear any currently outstanding hc interrupt conditions */ 337331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ writelfl(0, hc_mmio + HC_IRQ_CAUSE_OFS); 337420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ } 337520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 33766be96ac15e4d913e1f48299db083ada5321803b2Mark Lord /* Clear any currently outstanding host interrupt conditions */ 33776be96ac15e4d913e1f48299db083ada5321803b2Mark Lord writelfl(0, mmio + hpriv->irq_cause_ofs); 337831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 33796be96ac15e4d913e1f48299db083ada5321803b2Mark Lord /* and unmask interrupt generation for host regs */ 33806be96ac15e4d913e1f48299db083ada5321803b2Mark Lord writelfl(hpriv->unmask_all_irqs, mmio + hpriv->irq_mask_ofs); 338151de32d200b21333950abc52ea1e589bc4eecef7Mark Lord 33826be96ac15e4d913e1f48299db083ada5321803b2Mark Lord /* 33836be96ac15e4d913e1f48299db083ada5321803b2Mark Lord * enable only global host interrupts for now. 33846be96ac15e4d913e1f48299db083ada5321803b2Mark Lord * The per-port interrupts get done later as ports are set up. 33856be96ac15e4d913e1f48299db083ada5321803b2Mark Lord */ 33866be96ac15e4d913e1f48299db083ada5321803b2Mark Lord mv_set_main_irq_mask(host, 0, PCI_ERR); 3387f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharadone: 3388f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara return rc; 3389f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara} 3390fb621e2fde735abab854586d52c96c5624bcb5b8Jeff Garzik 3391fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradleystatic int mv_create_dma_pools(struct mv_host_priv *hpriv, struct device *dev) 3392fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley{ 3393fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley hpriv->crqb_pool = dmam_pool_create("crqb_q", dev, MV_CRQB_Q_SZ, 3394fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley MV_CRQB_Q_SZ, 0); 3395fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley if (!hpriv->crqb_pool) 3396fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley return -ENOMEM; 3397fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley 3398fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley hpriv->crpb_pool = dmam_pool_create("crpb_q", dev, MV_CRPB_Q_SZ, 3399fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley MV_CRPB_Q_SZ, 0); 3400fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley if (!hpriv->crpb_pool) 3401fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley return -ENOMEM; 3402fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley 3403fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley hpriv->sg_tbl_pool = dmam_pool_create("sg_tbl", dev, MV_SG_TBL_SZ, 3404fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley MV_SG_TBL_SZ, 0); 3405fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley if (!hpriv->sg_tbl_pool) 3406fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley return -ENOMEM; 3407fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley 3408fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley return 0; 3409fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley} 3410fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley 341115a32632d94011911497052a96cdbf3b905b325dLennert Buytenhekstatic void mv_conf_mbus_windows(struct mv_host_priv *hpriv, 341215a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek struct mbus_dram_target_info *dram) 341315a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek{ 341415a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek int i; 341515a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek 341615a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek for (i = 0; i < 4; i++) { 341715a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek writel(0, hpriv->base + WINDOW_CTRL(i)); 341815a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek writel(0, hpriv->base + WINDOW_BASE(i)); 341915a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek } 342015a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek 342115a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek for (i = 0; i < dram->num_cs; i++) { 342215a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek struct mbus_dram_window *cs = dram->cs + i; 342315a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek 342415a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek writel(((cs->size - 1) & 0xffff0000) | 342515a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek (cs->mbus_attr << 8) | 342615a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek (dram->mbus_dram_target_id << 4) | 1, 342715a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek hpriv->base + WINDOW_CTRL(i)); 342815a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek writel(cs->base, hpriv->base + WINDOW_BASE(i)); 342915a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek } 343015a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek} 343115a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek 3432f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara/** 3433f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara * mv_platform_probe - handle a positive probe of an soc Marvell 3434f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara * host 3435f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara * @pdev: platform device found 3436f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara * 3437f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara * LOCKING: 3438f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara * Inherited from caller. 3439f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara */ 3440f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic int mv_platform_probe(struct platform_device *pdev) 3441f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara{ 3442f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara static int printed_version; 3443f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara const struct mv_sata_platform_data *mv_platform_data; 3444f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara const struct ata_port_info *ppi[] = 3445f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara { &mv_port_info[chip_soc], NULL }; 3446f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara struct ata_host *host; 3447f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara struct mv_host_priv *hpriv; 3448f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara struct resource *res; 3449f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara int n_ports, rc; 345020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 3451f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara if (!printed_version++) 3452f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n"); 3453bca1c4eb9411533d613123618c0d127fae532595Jeff Garzik 3454f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara /* 3455f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara * Simple resource validation .. 3456f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara */ 3457f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara if (unlikely(pdev->num_resources != 2)) { 3458f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara dev_err(&pdev->dev, "invalid number of resources\n"); 3459f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara return -EINVAL; 3460f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara } 3461f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 3462f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara /* 3463f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara * Get the register base first 3464f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara */ 3465f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 3466f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara if (res == NULL) 3467f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara return -EINVAL; 3468f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 3469f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara /* allocate host */ 3470f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara mv_platform_data = pdev->dev.platform_data; 3471f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara n_ports = mv_platform_data->n_ports; 3472f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 3473f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports); 3474f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL); 3475f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 3476f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara if (!host || !hpriv) 3477f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara return -ENOMEM; 3478f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara host->private_data = hpriv; 3479f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara hpriv->n_ports = n_ports; 3480f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 3481f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara host->iomap = NULL; 3482f1cb0ea12fee23018ad1865bf789cbd463f13747Saeed Bishara hpriv->base = devm_ioremap(&pdev->dev, res->start, 3483f1cb0ea12fee23018ad1865bf789cbd463f13747Saeed Bishara res->end - res->start + 1); 3484f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara hpriv->base -= MV_SATAHC0_REG_BASE; 3485f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 348615a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek /* 348715a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek * (Re-)program MBUS remapping windows if we are asked to. 348815a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek */ 348915a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek if (mv_platform_data->dram != NULL) 349015a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek mv_conf_mbus_windows(hpriv, mv_platform_data->dram); 349115a32632d94011911497052a96cdbf3b905b325dLennert Buytenhek 3492fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley rc = mv_create_dma_pools(hpriv, &pdev->dev); 3493fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley if (rc) 3494fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley return rc; 3495fbf14e2f2d674e6a2ff0fb2aa569e7f6687483a3Byron Bradley 3496f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara /* initialize adapter */ 3497f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara rc = mv_init_host(host, chip_soc); 3498f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara if (rc) 3499f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara return rc; 3500f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 3501f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara dev_printk(KERN_INFO, &pdev->dev, 3502f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara "slots %u ports %d\n", (unsigned)MV_MAX_Q_DEPTH, 3503f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara host->n_ports); 3504f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 3505f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara return ata_host_activate(host, platform_get_irq(pdev, 0), mv_interrupt, 3506f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara IRQF_SHARED, &mv6_sht); 3507f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara} 3508f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 3509f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara/* 3510f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara * 3511f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara * mv_platform_remove - unplug a platform interface 3512f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara * @pdev: platform device 3513f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara * 3514f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara * A platform bus SATA device has been unplugged. Perform the needed 3515f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara * cleanup. Also called on module unload for any active devices. 3516f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara */ 3517f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic int __devexit mv_platform_remove(struct platform_device *pdev) 3518f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara{ 3519f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara struct device *dev = &pdev->dev; 3520f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara struct ata_host *host = dev_get_drvdata(dev); 3521f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 3522f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara ata_host_detach(host); 3523f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara return 0; 352420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ} 352520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 3526f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic struct platform_driver mv_platform_driver = { 3527f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara .probe = mv_platform_probe, 3528f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara .remove = __devexit_p(mv_platform_remove), 3529f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara .driver = { 3530f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara .name = DRV_NAME, 3531f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara .owner = THIS_MODULE, 3532f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara }, 3533f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara}; 3534f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 3535f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 35367bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara#ifdef CONFIG_PCI 3537f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic int mv_pci_init_one(struct pci_dev *pdev, 3538f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara const struct pci_device_id *ent); 3539f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 35407bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara 35417bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bisharastatic struct pci_driver mv_pci_driver = { 35427bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara .name = DRV_NAME, 35437bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara .id_table = mv_pci_tbl, 3544f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara .probe = mv_pci_init_one, 35457bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara .remove = ata_pci_remove_one, 35467bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara}; 35477bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara 35487bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara/* 35497bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara * module options 35507bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara */ 35517bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bisharastatic int msi; /* Use PCI msi; either zero (off, default) or non-zero */ 35527bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara 35537bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara 35547bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara/* move to PCI layer or libata core? */ 35557bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bisharastatic int pci_go_64(struct pci_dev *pdev) 35567bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara{ 35577bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara int rc; 35587bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara 35597bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) { 35607bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara rc = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); 35617bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara if (rc) { 35627bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); 35637bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara if (rc) { 35647bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara dev_printk(KERN_ERR, &pdev->dev, 35657bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara "64-bit DMA enable failed\n"); 35667bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara return rc; 35677bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara } 35687bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara } 35697bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara } else { 35707bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); 35717bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara if (rc) { 35727bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara dev_printk(KERN_ERR, &pdev->dev, 35737bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara "32-bit DMA enable failed\n"); 35747bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara return rc; 35757bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara } 35767bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); 35777bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara if (rc) { 35787bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara dev_printk(KERN_ERR, &pdev->dev, 35797bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara "32-bit consistent DMA enable failed\n"); 35807bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara return rc; 35817bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara } 35827bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara } 35837bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara 35847bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara return rc; 35857bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara} 35867bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara 358705b308e1df6d9d673daedb517969241f41278b52Brett Russ/** 358805b308e1df6d9d673daedb517969241f41278b52Brett Russ * mv_print_info - Dump key info to kernel log for perusal. 35894447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo * @host: ATA host to print info about 359005b308e1df6d9d673daedb517969241f41278b52Brett Russ * 359105b308e1df6d9d673daedb517969241f41278b52Brett Russ * FIXME: complete this. 359205b308e1df6d9d673daedb517969241f41278b52Brett Russ * 359305b308e1df6d9d673daedb517969241f41278b52Brett Russ * LOCKING: 359405b308e1df6d9d673daedb517969241f41278b52Brett Russ * Inherited from caller. 359505b308e1df6d9d673daedb517969241f41278b52Brett Russ */ 35964447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heostatic void mv_print_info(struct ata_host *host) 359731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ{ 35984447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo struct pci_dev *pdev = to_pci_dev(host->dev); 35994447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo struct mv_host_priv *hpriv = host->private_data; 360044c10138fd4bbc4b6d6bff0873c24902f2a9da65Auke Kok u8 scc; 3601c1e4fe711a410a139095e6b3e3ce3f07f466063cJeff Garzik const char *scc_s, *gen; 360231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 360331961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ /* Use this to determine the HW stepping of the chip so we know 360431961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ * what errata to workaround 360531961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ */ 360631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &scc); 360731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ if (scc == 0) 360831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ scc_s = "SCSI"; 360931961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ else if (scc == 0x01) 361031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ scc_s = "RAID"; 361131961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ else 3612c1e4fe711a410a139095e6b3e3ce3f07f466063cJeff Garzik scc_s = "?"; 3613c1e4fe711a410a139095e6b3e3ce3f07f466063cJeff Garzik 3614c1e4fe711a410a139095e6b3e3ce3f07f466063cJeff Garzik if (IS_GEN_I(hpriv)) 3615c1e4fe711a410a139095e6b3e3ce3f07f466063cJeff Garzik gen = "I"; 3616c1e4fe711a410a139095e6b3e3ce3f07f466063cJeff Garzik else if (IS_GEN_II(hpriv)) 3617c1e4fe711a410a139095e6b3e3ce3f07f466063cJeff Garzik gen = "II"; 3618c1e4fe711a410a139095e6b3e3ce3f07f466063cJeff Garzik else if (IS_GEN_IIE(hpriv)) 3619c1e4fe711a410a139095e6b3e3ce3f07f466063cJeff Garzik gen = "IIE"; 3620c1e4fe711a410a139095e6b3e3ce3f07f466063cJeff Garzik else 3621c1e4fe711a410a139095e6b3e3ce3f07f466063cJeff Garzik gen = "?"; 362231961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 3623a9524a76f70f3343e4be27f95a7e92a8ba5f9009Jeff Garzik dev_printk(KERN_INFO, &pdev->dev, 3624c1e4fe711a410a139095e6b3e3ce3f07f466063cJeff Garzik "Gen-%s %u slots %u ports %s mode IRQ via %s\n", 3625c1e4fe711a410a139095e6b3e3ce3f07f466063cJeff Garzik gen, (unsigned)MV_MAX_Q_DEPTH, host->n_ports, 362631961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ scc_s, (MV_HP_FLAG_MSI & hpriv->hp_flags) ? "MSI" : "INTx"); 362731961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ} 362831961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ 362905b308e1df6d9d673daedb517969241f41278b52Brett Russ/** 3630f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara * mv_pci_init_one - handle a positive probe of a PCI Marvell host 363105b308e1df6d9d673daedb517969241f41278b52Brett Russ * @pdev: PCI device found 363205b308e1df6d9d673daedb517969241f41278b52Brett Russ * @ent: PCI device ID entry for the matched host 363305b308e1df6d9d673daedb517969241f41278b52Brett Russ * 363405b308e1df6d9d673daedb517969241f41278b52Brett Russ * LOCKING: 363505b308e1df6d9d673daedb517969241f41278b52Brett Russ * Inherited from caller. 363605b308e1df6d9d673daedb517969241f41278b52Brett Russ */ 3637f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic int mv_pci_init_one(struct pci_dev *pdev, 3638f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara const struct pci_device_id *ent) 363920f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ{ 36402dcb407e61458ded17503d6bd12b8c064965368bJeff Garzik static int printed_version; 364120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ unsigned int board_idx = (unsigned int)ent->driver_data; 36424447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo const struct ata_port_info *ppi[] = { &mv_port_info[board_idx], NULL }; 36434447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo struct ata_host *host; 36444447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo struct mv_host_priv *hpriv; 36454447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo int n_ports, rc; 364620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 3647a9524a76f70f3343e4be27f95a7e92a8ba5f9009Jeff Garzik if (!printed_version++) 3648a9524a76f70f3343e4be27f95a7e92a8ba5f9009Jeff Garzik dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n"); 364920f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 36504447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo /* allocate host */ 36514447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo n_ports = mv_get_hc_count(ppi[0]->flags) * MV_PORTS_PER_HC; 36524447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo 36534447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports); 36544447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL); 36554447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo if (!host || !hpriv) 36564447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo return -ENOMEM; 36574447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo host->private_data = hpriv; 3658f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara hpriv->n_ports = n_ports; 36594447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo 36604447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo /* acquire resources */ 366124dc5f33ea4b504cfbd23fa159a4cacba8e4d800Tejun Heo rc = pcim_enable_device(pdev); 366224dc5f33ea4b504cfbd23fa159a4cacba8e4d800Tejun Heo if (rc) 366320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ return rc; 366420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 36650d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo rc = pcim_iomap_regions(pdev, 1 << MV_PRIMARY_BAR, DRV_NAME); 36660d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo if (rc == -EBUSY) 366724dc5f33ea4b504cfbd23fa159a4cacba8e4d800Tejun Heo pcim_pin_device(pdev); 36680d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo if (rc) 366924dc5f33ea4b504cfbd23fa159a4cacba8e4d800Tejun Heo return rc; 36704447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo host->iomap = pcim_iomap_table(pdev); 3671f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara hpriv->base = host->iomap[MV_PRIMARY_BAR]; 367220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 3673d88184fb2348a50f7c34f5d49a901c875b2e0114Jeff Garzik rc = pci_go_64(pdev); 3674d88184fb2348a50f7c34f5d49a901c875b2e0114Jeff Garzik if (rc) 3675d88184fb2348a50f7c34f5d49a901c875b2e0114Jeff Garzik return rc; 3676d88184fb2348a50f7c34f5d49a901c875b2e0114Jeff Garzik 3677da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord rc = mv_create_dma_pools(hpriv, &pdev->dev); 3678da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord if (rc) 3679da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord return rc; 3680da2fa9baf06f33a8fa7aa3f56c9f2b4070ceca0eMark Lord 368120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ /* initialize adapter */ 36824447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo rc = mv_init_host(host, board_idx); 368324dc5f33ea4b504cfbd23fa159a4cacba8e4d800Tejun Heo if (rc) 368424dc5f33ea4b504cfbd23fa159a4cacba8e4d800Tejun Heo return rc; 368520f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 36866d3c30efc964fadf2e6270e6fceaeca3ce50027aMark Lord /* Enable message-switched interrupts, if requested */ 36876d3c30efc964fadf2e6270e6fceaeca3ce50027aMark Lord if (msi && pci_enable_msi(pdev) == 0) 36886d3c30efc964fadf2e6270e6fceaeca3ce50027aMark Lord hpriv->hp_flags |= MV_HP_FLAG_MSI; 368920f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 369031961943e3110c5a1c36b1e0069c29f7c4380e51Brett Russ mv_dump_pci_cfg(pdev, 0x68); 36914447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo mv_print_info(host); 369220f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 36934447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo pci_set_master(pdev); 3694ea8b4db97aa41a66c05daa4055a1974692ccd52dJeff Garzik pci_try_set_mwi(pdev); 36954447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo return ata_host_activate(host, pdev->irq, mv_interrupt, IRQF_SHARED, 3696c5d3e45a2200a0905dc45b72714726b7aac3aaf1Jeff Garzik IS_GEN_I(hpriv) ? &mv5_sht : &mv6_sht); 369720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ} 36987bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara#endif 369920f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 3700f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic int mv_platform_probe(struct platform_device *pdev); 3701f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bisharastatic int __devexit mv_platform_remove(struct platform_device *pdev); 3702f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 370320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russstatic int __init mv_init(void) 370420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ{ 37057bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara int rc = -ENODEV; 37067bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara#ifdef CONFIG_PCI 37077bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara rc = pci_register_driver(&mv_pci_driver); 3708f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara if (rc < 0) 3709f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara return rc; 3710f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara#endif 3711f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara rc = platform_driver_register(&mv_platform_driver); 3712f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara 3713f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara#ifdef CONFIG_PCI 3714f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara if (rc < 0) 3715f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara pci_unregister_driver(&mv_pci_driver); 37167bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara#endif 37177bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara return rc; 371820f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ} 371920f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 372020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russstatic void __exit mv_exit(void) 372120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ{ 37227bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara#ifdef CONFIG_PCI 372320f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ pci_unregister_driver(&mv_pci_driver); 37247bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara#endif 3725f351b2d638c3cb0b95adde3549b7bfaf3f991dfaSaeed Bishara platform_driver_unregister(&mv_platform_driver); 372620f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ} 372720f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 372820f733e7d75a16bffc34842b7682c9247dd5f954Brett RussMODULE_AUTHOR("Brett Russ"); 372920f733e7d75a16bffc34842b7682c9247dd5f954Brett RussMODULE_DESCRIPTION("SCSI low-level driver for Marvell SATA controllers"); 373020f733e7d75a16bffc34842b7682c9247dd5f954Brett RussMODULE_LICENSE("GPL"); 373120f733e7d75a16bffc34842b7682c9247dd5f954Brett RussMODULE_DEVICE_TABLE(pci, mv_pci_tbl); 373220f733e7d75a16bffc34842b7682c9247dd5f954Brett RussMODULE_VERSION(DRV_VERSION); 373317c5aab5b34e351531466e35b154ca86db7d46a9Mark LordMODULE_ALIAS("platform:" DRV_NAME); 373420f733e7d75a16bffc34842b7682c9247dd5f954Brett Russ 37357bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara#ifdef CONFIG_PCI 3736ddef9bb367b19383df627e388cb4c01c86ddba6cJeff Garzikmodule_param(msi, int, 0444); 3737ddef9bb367b19383df627e388cb4c01c86ddba6cJeff GarzikMODULE_PARM_DESC(msi, "Enable use of PCI MSI (0=off, 1=on)"); 37387bb3c5290ca0ec9e65947c907495c2b56e895e46Saeed Bishara#endif 3739ddef9bb367b19383df627e388cb4c01c86ddba6cJeff Garzik 374020f733e7d75a16bffc34842b7682c9247dd5f954Brett Russmodule_init(mv_init); 374120f733e7d75a16bffc34842b7682c9247dd5f954Brett Russmodule_exit(mv_exit); 3742