11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * sata_vsc.c - Vitesse VSC7174 4 port DPA SATA 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Maintained by: Jeremy Higdon @ SGI 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Please ALWAYS copy linux-ide@vger.kernel.org 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * on emails. 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright 2004 SGI 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Bits from Jeff Garzik, Copyright RedHat, Inc. 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 12af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * 13af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * This program is free software; you can redistribute it and/or modify 14af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * it under the terms of the GNU General Public License as published by 15af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * the Free Software Foundation; either version 2, or (at your option) 16af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * any later version. 17af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * 18af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * This program is distributed in the hope that it will be useful, 19af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * but WITHOUT ANY WARRANTY; without even the implied warranty of 20af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * GNU General Public License for more details. 22af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * 23af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * You should have received a copy of the GNU General Public License 24af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * along with this program; see the file COPYING. If not, write to 25af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 26af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * 27af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * 28af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * libata documentation is available via 'make {ps|pdf}docs', 29af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * as Documentation/DocBook/libata.* 30af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * 31af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * Vitesse hardware documentation presumably available under NDA. 32af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * Intel 31244 (same hardware interface) documentation presumably 33af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * available from http://developer.intel.com/ 34af36d7f0df56de3e3e4bbfb15d0915097ecb8cabJeff Garzik * 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/module.h> 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pci.h> 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/blkdev.h> 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/delay.h> 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/interrupt.h> 447003c05d77593f567e9940e68a944d846228fd7aDomen Puncer#include <linux/dma-mapping.h> 45a9524a76f70f3343e4be27f95a7e92a8ba5f9009Jeff Garzik#include <linux/device.h> 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <scsi/scsi_host.h> 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/libata.h> 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DRV_NAME "sata_vsc" 502a3103ce4357a09c2289405f969acec0edf4398fJeff Garzik#define DRV_VERSION "2.3" 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5255cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzikenum { 530d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo VSC_MMIO_BAR = 0, 540d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo 5555cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik /* Interrupt register offsets (from chip base address) */ 5655cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_INT_STAT_OFFSET = 0x00, 5755cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_INT_MASK_OFFSET = 0x04, 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5955cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik /* Taskfile registers offsets */ 6055cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_TF_CMD_OFFSET = 0x00, 6155cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_TF_DATA_OFFSET = 0x00, 6255cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_TF_ERROR_OFFSET = 0x04, 6355cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_TF_FEATURE_OFFSET = 0x06, 6455cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_TF_NSECT_OFFSET = 0x08, 6555cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_TF_LBAL_OFFSET = 0x0c, 6655cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_TF_LBAM_OFFSET = 0x10, 6755cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_TF_LBAH_OFFSET = 0x14, 6855cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_TF_DEVICE_OFFSET = 0x18, 6955cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_TF_STATUS_OFFSET = 0x1c, 7055cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_TF_COMMAND_OFFSET = 0x1d, 7155cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_TF_ALTSTATUS_OFFSET = 0x28, 7255cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_TF_CTL_OFFSET = 0x29, 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7455cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik /* DMA base */ 7555cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_UP_DESCRIPTOR_OFFSET = 0x64, 7655cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_UP_DATA_BUFFER_OFFSET = 0x6C, 7755cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_DMA_CMD_OFFSET = 0x70, 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 7955cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik /* SCRs base */ 8055cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_SCR_STATUS_OFFSET = 0x100, 8155cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_SCR_ERROR_OFFSET = 0x104, 8255cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_SCR_CONTROL_OFFSET = 0x108, 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 8455cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik /* Port stride */ 8555cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_PORT_OFFSET = 0x200, 8655cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik 8755cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik /* Error interrupt status bit offsets */ 8855cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_INT_ERROR_CRC = 0x40, 8955cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_INT_ERROR_T = 0x20, 9055cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_INT_ERROR_P = 0x10, 9155cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_INT_ERROR_R = 0x8, 9255cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_INT_ERROR_E = 0x4, 9355cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_INT_ERROR_M = 0x2, 9455cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_INT_PHY_CHANGE = 0x1, 9555cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_INT_ERROR = (VSC_SATA_INT_ERROR_CRC | VSC_SATA_INT_ERROR_T | \ 9655cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_INT_ERROR_P | VSC_SATA_INT_ERROR_R | \ 9755cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_INT_ERROR_E | VSC_SATA_INT_ERROR_M | \ 9855cca65e1995ad604ee87e22c76c17d5cbceb9d0Jeff Garzik VSC_SATA_INT_PHY_CHANGE), 997cbaa86b937b0b1fab95c159989f6a3c00bbcf78Dan Wolstenholme}; 100c962990a38167aacac91738501815deffa3afbd6Dan Williams 10182ef04fb4c82542b3eda81cca461f0594ce9cd0bTejun Heostatic int vsc_sata_scr_read(struct ata_link *link, 10282ef04fb4c82542b3eda81cca461f0594ce9cd0bTejun Heo unsigned int sc_reg, u32 *val) 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sc_reg > SCR_CONTROL) 105da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo return -EINVAL; 10682ef04fb4c82542b3eda81cca461f0594ce9cd0bTejun Heo *val = readl(link->ap->ioaddr.scr_addr + (sc_reg * 4)); 107da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo return 0; 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11182ef04fb4c82542b3eda81cca461f0594ce9cd0bTejun Heostatic int vsc_sata_scr_write(struct ata_link *link, 11282ef04fb4c82542b3eda81cca461f0594ce9cd0bTejun Heo unsigned int sc_reg, u32 val) 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sc_reg > SCR_CONTROL) 115da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo return -EINVAL; 11682ef04fb4c82542b3eda81cca461f0594ce9cd0bTejun Heo writel(val, link->ap->ioaddr.scr_addr + (sc_reg * 4)); 117da3dbb17a0e9a9ec7f5aed95f1fddadb790edc9dTejun Heo return 0; 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 121ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williamsstatic void vsc_freeze(struct ata_port *ap) 122ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams{ 123ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams void __iomem *mask_addr; 124ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams 125ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams mask_addr = ap->host->iomap[VSC_MMIO_BAR] + 126ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams VSC_SATA_INT_MASK_OFFSET + ap->port_no; 127ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams 128ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams writeb(0, mask_addr); 129ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams} 130ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams 131ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams 132ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williamsstatic void vsc_thaw(struct ata_port *ap) 133ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams{ 134ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams void __iomem *mask_addr; 135ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams 136ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams mask_addr = ap->host->iomap[VSC_MMIO_BAR] + 137ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams VSC_SATA_INT_MASK_OFFSET + ap->port_no; 138ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams 139ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams writeb(0xff, mask_addr); 140ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams} 141ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams 142ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void vsc_intr_mask_update(struct ata_port *ap, u8 ctl) 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 145307e4dc28ee255bf22b431f242f847c9d96fe3faAl Viro void __iomem *mask_addr; 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 mask; 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1480d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo mask_addr = ap->host->iomap[VSC_MMIO_BAR] + 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds VSC_SATA_INT_MASK_OFFSET + ap->port_no; 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask = readb(mask_addr); 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ctl & ATA_NIEN) 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask |= 0x80; 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds else 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds mask &= 0x7F; 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds writeb(mask, mask_addr); 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 159057ace5e79da9ebf2aa82833cfea825533ac06fbJeff Garzikstatic void vsc_sata_tf_load(struct ata_port *ap, const struct ata_taskfile *tf) 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ata_ioports *ioaddr = &ap->ioaddr; 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR; 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The only thing the ctl register is used for is SRST. 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * That is not enabled or disabled via tf_load. 1675796d1c4c89efff823259fda35b08ea66ebf8b23Jeff Garzik * However, if ATA_NIEN is changed, then we need to change 1685796d1c4c89efff823259fda35b08ea66ebf8b23Jeff Garzik * the interrupt register. 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((tf->ctl & ATA_NIEN) != (ap->last_ctl & ATA_NIEN)) { 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ap->last_ctl = tf->ctl; 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds vsc_intr_mask_update(ap, tf->ctl & ATA_NIEN); 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) { 175850a9d8a8bbeeba8263025a983d1c18e5e250f5dJeff Garzik writew(tf->feature | (((u16)tf->hob_feature) << 8), 1760d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo ioaddr->feature_addr); 177850a9d8a8bbeeba8263025a983d1c18e5e250f5dJeff Garzik writew(tf->nsect | (((u16)tf->hob_nsect) << 8), 1780d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo ioaddr->nsect_addr); 179850a9d8a8bbeeba8263025a983d1c18e5e250f5dJeff Garzik writew(tf->lbal | (((u16)tf->hob_lbal) << 8), 1800d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo ioaddr->lbal_addr); 181850a9d8a8bbeeba8263025a983d1c18e5e250f5dJeff Garzik writew(tf->lbam | (((u16)tf->hob_lbam) << 8), 1820d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo ioaddr->lbam_addr); 183850a9d8a8bbeeba8263025a983d1c18e5e250f5dJeff Garzik writew(tf->lbah | (((u16)tf->hob_lbah) << 8), 1840d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo ioaddr->lbah_addr); 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (is_addr) { 1860d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo writew(tf->feature, ioaddr->feature_addr); 1870d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo writew(tf->nsect, ioaddr->nsect_addr); 1880d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo writew(tf->lbal, ioaddr->lbal_addr); 1890d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo writew(tf->lbam, ioaddr->lbam_addr); 1900d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo writew(tf->lbah, ioaddr->lbah_addr); 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tf->flags & ATA_TFLAG_DEVICE) 1940d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo writeb(tf->device, ioaddr->device_addr); 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ata_wait_idle(ap); 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void vsc_sata_tf_read(struct ata_port *ap, struct ata_taskfile *tf) 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct ata_ioports *ioaddr = &ap->ioaddr; 203ac19bff25b6834d858274406a686f2227dd8489dJeff Garzik u16 nsect, lbal, lbam, lbah, feature; 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2059363c3825ea9ad76561eb48a395349dd29211ed6Tejun Heo tf->command = ata_sff_check_status(ap); 2060d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo tf->device = readw(ioaddr->device_addr); 2070d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo feature = readw(ioaddr->error_addr); 2080d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo nsect = readw(ioaddr->nsect_addr); 2090d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo lbal = readw(ioaddr->lbal_addr); 2100d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo lbam = readw(ioaddr->lbam_addr); 2110d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo lbah = readw(ioaddr->lbah_addr); 212ac19bff25b6834d858274406a686f2227dd8489dJeff Garzik 213ac19bff25b6834d858274406a686f2227dd8489dJeff Garzik tf->feature = feature; 214ac19bff25b6834d858274406a686f2227dd8489dJeff Garzik tf->nsect = nsect; 215ac19bff25b6834d858274406a686f2227dd8489dJeff Garzik tf->lbal = lbal; 216ac19bff25b6834d858274406a686f2227dd8489dJeff Garzik tf->lbam = lbam; 217ac19bff25b6834d858274406a686f2227dd8489dJeff Garzik tf->lbah = lbah; 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (tf->flags & ATA_TFLAG_LBA48) { 220ac19bff25b6834d858274406a686f2227dd8489dJeff Garzik tf->hob_feature = feature >> 8; 2211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tf->hob_nsect = nsect >> 8; 2221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tf->hob_lbal = lbal >> 8; 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tf->hob_lbam = lbam >> 8; 2241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds tf->hob_lbah = lbah >> 8; 2255796d1c4c89efff823259fda35b08ea66ebf8b23Jeff Garzik } 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 228ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williamsstatic inline void vsc_error_intr(u8 port_status, struct ata_port *ap) 229ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams{ 230ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams if (port_status & (VSC_SATA_INT_PHY_CHANGE | VSC_SATA_INT_ERROR_M)) 231ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams ata_port_freeze(ap); 232ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams else 233ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams ata_port_abort(ap); 234ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams} 235ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams 236ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williamsstatic void vsc_port_intr(u8 port_status, struct ata_port *ap) 237ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams{ 238ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams struct ata_queued_cmd *qc; 239ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams int handled = 0; 240ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams 241ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams if (unlikely(port_status & VSC_SATA_INT_ERROR)) { 242ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams vsc_error_intr(port_status, ap); 243ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams return; 244ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams } 245ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams 2469af5c9c97dc9d599281778864c72b385f0c63341Tejun Heo qc = ata_qc_from_tag(ap, ap->link.active_tag); 247ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams if (qc && likely(!(qc->tf.flags & ATA_TFLAG_POLLING))) 248c3b2889424c26f3b42962b6f39aabb4f1fd1b576Tejun Heo handled = ata_bmdma_port_intr(ap, qc); 249ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams 250ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams /* We received an interrupt during a polled command, 251ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams * or some other spurious condition. Interrupt reporting 252ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams * with this hardware is fairly reliable so it is safe to 253ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams * simply clear the interrupt 254ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams */ 255ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams if (unlikely(!handled)) 2565682ed33aae05d10a25c95633ef9d9c062825888Tejun Heo ap->ops->sff_check_status(ap); 257ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams} 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * vsc_sata_interrupt 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2625796d1c4c89efff823259fda35b08ea66ebf8b23Jeff Garzik * Read the interrupt register and process for the devices that have 2635796d1c4c89efff823259fda35b08ea66ebf8b23Jeff Garzik * them pending. 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2655796d1c4c89efff823259fda35b08ea66ebf8b23Jeff Garzikstatic irqreturn_t vsc_sata_interrupt(int irq, void *dev_instance) 2661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 267cca3974e48607c3775dc73b544a5700b2e37c21aJeff Garzik struct ata_host *host = dev_instance; 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int i; 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned int handled = 0; 270ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams u32 status; 2711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 272ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams status = readl(host->iomap[VSC_MMIO_BAR] + VSC_SATA_INT_STAT_OFFSET); 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 274ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams if (unlikely(status == 0xffffffff || status == 0)) { 275ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams if (status) 276a44fec1fce5d5d14cc3ac4545b8da346394de666Joe Perches dev_err(host->dev, 277a44fec1fce5d5d14cc3ac4545b8da346394de666Joe Perches ": IRQ status == 0xffffffff, PCI fault or device removal?\n"); 278ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams goto out; 279ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams } 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 281ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams spin_lock(&host->lock); 2822ae5b30ff08cee422c7f6388a759f743633c7542Dan Williams 283ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams for (i = 0; i < host->n_ports; i++) { 284ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams u8 port_status = (status >> (8 * i)) & 0xff; 285ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams if (port_status) { 2863e4ec3443f70fbe144799ccf0b1c3797f78d1715Tejun Heo vsc_port_intr(port_status, host->ports[i]); 2873e4ec3443f70fbe144799ccf0b1c3797f78d1715Tejun Heo handled++; 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 291cca3974e48607c3775dc73b544a5700b2e37c21aJeff Garzik spin_unlock(&host->lock); 292ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williamsout: 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return IRQ_RETVAL(handled); 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 297193515d51ccb363165d6b09e9ba5c21089e34badJeff Garzikstatic struct scsi_host_template vsc_sata_sht = { 29868d1d07b510bb57a504588adc2bd2758adea0965Tejun Heo ATA_BMDMA_SHT(DRV_NAME), 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 302029cfd6b74fc5c517865fad78cf4a3ea8d9b664aTejun Heostatic struct ata_port_operations vsc_sata_ops = { 303029cfd6b74fc5c517865fad78cf4a3ea8d9b664aTejun Heo .inherits = &ata_bmdma_port_ops, 304c96f1732e25362d10ee7bcac1df8412a2e6b7d23Alan Cox /* The IRQ handling is not quite standard SFF behaviour so we 305c96f1732e25362d10ee7bcac1df8412a2e6b7d23Alan Cox cannot use the default lost interrupt handler */ 306c96f1732e25362d10ee7bcac1df8412a2e6b7d23Alan Cox .lost_interrupt = ATA_OP_NULL, 3075682ed33aae05d10a25c95633ef9d9c062825888Tejun Heo .sff_tf_load = vsc_sata_tf_load, 3085682ed33aae05d10a25c95633ef9d9c062825888Tejun Heo .sff_tf_read = vsc_sata_tf_read, 309ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams .freeze = vsc_freeze, 310ea34e45a4670c4fa0da3442fc74789fd66c1201bDan Williams .thaw = vsc_thaw, 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .scr_read = vsc_sata_scr_read, 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .scr_write = vsc_sata_scr_write, 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3150d5ff566779f894ca9937231a181eb31e4adff0eTejun Heostatic void __devinit vsc_sata_setup_port(struct ata_ioports *port, 3160d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo void __iomem *base) 3171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->cmd_addr = base + VSC_SATA_TF_CMD_OFFSET; 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->data_addr = base + VSC_SATA_TF_DATA_OFFSET; 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->error_addr = base + VSC_SATA_TF_ERROR_OFFSET; 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->feature_addr = base + VSC_SATA_TF_FEATURE_OFFSET; 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->nsect_addr = base + VSC_SATA_TF_NSECT_OFFSET; 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->lbal_addr = base + VSC_SATA_TF_LBAL_OFFSET; 3241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->lbam_addr = base + VSC_SATA_TF_LBAM_OFFSET; 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->lbah_addr = base + VSC_SATA_TF_LBAH_OFFSET; 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->device_addr = base + VSC_SATA_TF_DEVICE_OFFSET; 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->status_addr = base + VSC_SATA_TF_STATUS_OFFSET; 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->command_addr = base + VSC_SATA_TF_COMMAND_OFFSET; 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->altstatus_addr = base + VSC_SATA_TF_ALTSTATUS_OFFSET; 3301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->ctl_addr = base + VSC_SATA_TF_CTL_OFFSET; 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->bmdma_addr = base + VSC_SATA_DMA_CMD_OFFSET; 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds port->scr_addr = base + VSC_SATA_SCR_STATUS_OFFSET; 3330d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo writel(0, base + VSC_SATA_UP_DESCRIPTOR_OFFSET); 3340d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo writel(0, base + VSC_SATA_UP_DATA_BUFFER_OFFSET); 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3385796d1c4c89efff823259fda35b08ea66ebf8b23Jeff Garzikstatic int __devinit vsc_sata_init_one(struct pci_dev *pdev, 3395796d1c4c89efff823259fda35b08ea66ebf8b23Jeff Garzik const struct pci_device_id *ent) 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3414447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo static const struct ata_port_info pi = { 3429cbe056f6c467e7395d5aec39aceec47812eb98eSergei Shtylyov .flags = ATA_FLAG_SATA, 34314bdef982caeda19afe34010482867c18217c641Erik Inge Bolsø .pio_mask = ATA_PIO4, 34414bdef982caeda19afe34010482867c18217c641Erik Inge Bolsø .mwdma_mask = ATA_MWDMA2, 345bf6263a853c9c143bf03f0a6fdcc68ab714fb5f5Jeff Garzik .udma_mask = ATA_UDMA6, 3464447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo .port_ops = &vsc_sata_ops, 3474447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo }; 3484447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo const struct ata_port_info *ppi[] = { &pi, NULL }; 3494447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo struct ata_host *host; 350307e4dc28ee255bf22b431f242f847c9d96fe3faAl Viro void __iomem *mmio_base; 3514447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo int i, rc; 3527de970e11fb832a56c897276967fb0e49f59b313Nate Dailey u8 cls; 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 35406296a1e684bcd40b9a28d5d8030809e4295528bJoe Perches ata_print_version_once(&pdev->dev, DRV_VERSION); 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3564447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo /* allocate host */ 3574447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo host = ata_host_alloc_pinfo(&pdev->dev, ppi, 4); 3584447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo if (!host) 3594447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo return -ENOMEM; 3604447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo 36124dc5f33ea4b504cfbd23fa159a4cacba8e4d800Tejun Heo rc = pcim_enable_device(pdev); 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return rc; 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3654447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo /* check if we have needed resource mapped */ 36624dc5f33ea4b504cfbd23fa159a4cacba8e4d800Tejun Heo if (pci_resource_len(pdev, 0) == 0) 36724dc5f33ea4b504cfbd23fa159a4cacba8e4d800Tejun Heo return -ENODEV; 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 369b595076a180a56d1bb170e6eceda6eb9d76f4cd3Uwe Kleine-König /* map IO regions and initialize host accordingly */ 3700d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo rc = pcim_iomap_regions(pdev, 1 << VSC_MMIO_BAR, DRV_NAME); 3710d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo if (rc == -EBUSY) 37224dc5f33ea4b504cfbd23fa159a4cacba8e4d800Tejun Heo pcim_pin_device(pdev); 3730d5ff566779f894ca9937231a181eb31e4adff0eTejun Heo if (rc) 37424dc5f33ea4b504cfbd23fa159a4cacba8e4d800Tejun Heo return rc; 3754447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo host->iomap = pcim_iomap_table(pdev); 3764447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo 3774447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo mmio_base = host->iomap[VSC_MMIO_BAR]; 3784447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo 379cbcdd87593a1d85c5c4b259945a3a09eee12814dTejun Heo for (i = 0; i < host->n_ports; i++) { 380cbcdd87593a1d85c5c4b259945a3a09eee12814dTejun Heo struct ata_port *ap = host->ports[i]; 381cbcdd87593a1d85c5c4b259945a3a09eee12814dTejun Heo unsigned int offset = (i + 1) * VSC_SATA_PORT_OFFSET; 382cbcdd87593a1d85c5c4b259945a3a09eee12814dTejun Heo 383cbcdd87593a1d85c5c4b259945a3a09eee12814dTejun Heo vsc_sata_setup_port(&ap->ioaddr, mmio_base + offset); 384cbcdd87593a1d85c5c4b259945a3a09eee12814dTejun Heo 385cbcdd87593a1d85c5c4b259945a3a09eee12814dTejun Heo ata_port_pbar_desc(ap, VSC_MMIO_BAR, -1, "mmio"); 386cbcdd87593a1d85c5c4b259945a3a09eee12814dTejun Heo ata_port_pbar_desc(ap, VSC_MMIO_BAR, offset, "port"); 387cbcdd87593a1d85c5c4b259945a3a09eee12814dTejun Heo } 3881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 3901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Use 32 bit DMA mask, because 64 bit address support is poor. 3911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 392284901a90a9e0b812ca3f5f852cbbfb60d10249dYang Hongyang rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) 39424dc5f33ea4b504cfbd23fa159a4cacba8e4d800Tejun Heo return rc; 395284901a90a9e0b812ca3f5f852cbbfb60d10249dYang Hongyang rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); 3961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (rc) 39724dc5f33ea4b504cfbd23fa159a4cacba8e4d800Tejun Heo return rc; 3987cbaa86b937b0b1fab95c159989f6a3c00bbcf78Dan Wolstenholme 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 4007de970e11fb832a56c897276967fb0e49f59b313Nate Dailey * Due to a bug in the chip, the default cache line size can't be 4017de970e11fb832a56c897276967fb0e49f59b313Nate Dailey * used (unless the default is non-zero). 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4037de970e11fb832a56c897276967fb0e49f59b313Nate Dailey pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &cls); 4047de970e11fb832a56c897276967fb0e49f59b313Nate Dailey if (cls == 0x00) 4057de970e11fb832a56c897276967fb0e49f59b313Nate Dailey pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 0x80); 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 40724dc5f33ea4b504cfbd23fa159a4cacba8e4d800Tejun Heo if (pci_enable_msi(pdev) == 0) 4087cbaa86b937b0b1fab95c159989f6a3c00bbcf78Dan Wolstenholme pci_intx(pdev, 0); 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4108a60a07129fad60bba779a2a4038c7518b167fc7Jeff Garzik /* 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Config offset 0x98 is "Extended Control and Status Register 0" 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Default value is (1 << 28). All bits except bit 28 are reserved in 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * DPA mode. If bit 28 is set, LED 0 reflects all ports' activity. 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * If bit 28 is clear, each port has its own LED. 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_write_config_dword(pdev, 0x98, 0); 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4184447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo pci_set_master(pdev); 4194447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo return ata_host_activate(host, pdev->irq, vsc_sata_interrupt, 4204447d35156169cf136e829eb6b5cac2d6370f2d9Tejun Heo IRQF_SHARED, &vsc_sata_sht); 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4233b7d697dfb7d03edb87e50b743a7ecff029618e9Jeff Garzikstatic const struct pci_device_id vsc_sata_pci_tbl[] = { 424438bc9c3dec27ab37f0ff78471d0b8b91addd2ddJeff Garzik { PCI_VENDOR_ID_VITESSE, 0x7174, 42574d0a988d3aa359b6b8a8536c8cb92cce02ca5d5Brent Casavant PCI_ANY_ID, PCI_ANY_ID, 0x10600, 0xFFFFFF, 0 }, 426438bc9c3dec27ab37f0ff78471d0b8b91addd2ddJeff Garzik { PCI_VENDOR_ID_INTEL, 0x3200, 42774d0a988d3aa359b6b8a8536c8cb92cce02ca5d5Brent Casavant PCI_ANY_ID, PCI_ANY_ID, 0x10600, 0xFFFFFF, 0 }, 4282d2744fc8be620a2dc469cf48349e3e704119f1bJeff Garzik 429438bc9c3dec27ab37f0ff78471d0b8b91addd2ddJeff Garzik { } /* terminate list */ 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic struct pci_driver vsc_sata_pci_driver = { 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .name = DRV_NAME, 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .id_table = vsc_sata_pci_tbl, 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .probe = vsc_sata_init_one, 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds .remove = ata_pci_remove_one, 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic int __init vsc_sata_init(void) 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 441b7887196e38da54ff893897b80875d632d1a1114Pavel Roskin return pci_register_driver(&vsc_sata_pci_driver); 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic void __exit vsc_sata_exit(void) 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pci_unregister_driver(&vsc_sata_pci_driver); 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_AUTHOR("Jeremy Higdon"); 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DESCRIPTION("low-level driver for Vitesse VSC7174 SATA controller"); 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_LICENSE("GPL"); 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_DEVICE_TABLE(pci, vsc_sata_pci_tbl); 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsMODULE_VERSION(DRV_VERSION); 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_init(vsc_sata_init); 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsmodule_exit(vsc_sata_exit); 457