17c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen/* 27c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * AVR32 SMC/CFC PATA Driver 37c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * 47c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * Copyright (C) 2007 Atmel Norway 57c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * 67c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * This program is free software; you can redistribute it and/or 77c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * modify it under the terms of the GNU General Public License version 87c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * 2 as published by the Free Software Foundation. 97c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen */ 107c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 117c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#define DEBUG 127c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 137c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#include <linux/kernel.h> 147c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#include <linux/module.h> 157c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#include <linux/init.h> 167c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#include <linux/device.h> 177c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#include <linux/platform_device.h> 187c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#include <linux/delay.h> 197c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#include <linux/interrupt.h> 207c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#include <linux/irq.h> 215a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 227c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#include <scsi/scsi_host.h> 237c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#include <linux/ata.h> 247c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#include <linux/libata.h> 257c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#include <linux/err.h> 267c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#include <linux/io.h> 277c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 283663b736a5083b3bce74520b637f630f01f66a7fHaavard Skinnemoen#include <mach/board.h> 293663b736a5083b3bce74520b637f630f01f66a7fHaavard Skinnemoen#include <mach/smc.h> 307c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 317c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#define DRV_NAME "pata_at32" 321c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen#define DRV_VERSION "0.0.3" 337c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 347c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen/* 357c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * CompactFlash controller memory layout relative to the base address: 367c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * 377c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * Attribute memory: 0000 0000 -> 003f ffff 387c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * Common memory: 0040 0000 -> 007f ffff 397c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * I/O memory: 0080 0000 -> 00bf ffff 407c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * True IDE Mode: 00c0 0000 -> 00df ffff 417c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * Alt IDE Mode: 00e0 0000 -> 00ff ffff 427c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * 437c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * Only True IDE and Alt True IDE mode are needed for this driver. 447c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * 457c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * True IDE mode => CS0 = 0, CS1 = 1 (cmd, error, stat, etc) 467c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * Alt True IDE mode => CS0 = 1, CS1 = 0 (ctl, alt_stat) 477c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen */ 487c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#define CF_IDE_OFFSET 0x00c00000 497c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#define CF_ALT_IDE_OFFSET 0x00e00000 507c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#define CF_RES_SIZE 2048 517c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 527c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen/* 537c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * Define DEBUG_BUS if you are doing debugging of your own EBI -> PATA 547c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * adaptor with a logic analyzer or similar. 557c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen */ 567c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#undef DEBUG_BUS 577c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 587c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen/* 597c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * ATA PIO modes 607c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * 617c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * Name | Mb/s | Min cycle time | Mask 627c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * --------+-------+----------------+-------- 637c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * Mode 0 | 3.3 | 600 ns | 0x01 647c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * Mode 1 | 5.2 | 383 ns | 0x03 657c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * Mode 2 | 8.3 | 240 ns | 0x07 667c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * Mode 3 | 11.1 | 180 ns | 0x0f 677c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * Mode 4 | 16.7 | 120 ns | 0x1f 681c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen * 691c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen * Alter PIO_MASK below according to table to set maximal PIO mode. 707c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen */ 7114bdef982caeda19afe34010482867c18217c641Erik Inge Bolsøenum { 7214bdef982caeda19afe34010482867c18217c641Erik Inge Bolsø PIO_MASK = ATA_PIO4, 7314bdef982caeda19afe34010482867c18217c641Erik Inge Bolsø}; 747c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 757c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen/* 767c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * Struct containing private information about device. 777c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen */ 787c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsenstruct at32_ide_info { 797c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen unsigned int irq; 807c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen struct resource res_ide; 817c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen struct resource res_alt; 827c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen void __iomem *ide_addr; 837c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen void __iomem *alt_addr; 847c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen unsigned int cs; 857c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen struct smc_config smc; 867c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen}; 877c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 887c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen/* 897c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * Setup SMC for the given ATA timing. 907c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen */ 917c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsenstatic int pata_at32_setup_timing(struct device *dev, 927c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen struct at32_ide_info *info, 931c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen const struct ata_timing *ata) 947c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen{ 957c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen struct smc_config *smc = &info->smc; 961c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen struct smc_timing timing; 977c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 987c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen int active; 997c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen int recover; 1007c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 1011c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen memset(&timing, 0, sizeof(struct smc_timing)); 1021c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen 1037c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen /* Total cycle time */ 1041c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen timing.read_cycle = ata->cyc8b; 1057c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 1067c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen /* DIOR <= CFIOR timings */ 1071c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen timing.nrd_setup = ata->setup; 1081c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen timing.nrd_pulse = ata->act8b; 1091c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen timing.nrd_recover = ata->rec8b; 1101c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen 1111c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen /* Convert nanosecond timing to clock cycles */ 1121c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen smc_set_timing(smc, &timing); 1137c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 1141c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen /* Add one extra cycle setup due to signal ring */ 1151c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen smc->nrd_setup = smc->nrd_setup + 1; 1161c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen 1171c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen active = smc->nrd_setup + smc->nrd_pulse; 1187c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen recover = smc->read_cycle - active; 1197c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 1201c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen /* Need at least two cycles recovery */ 1211c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen if (recover < 2) 1221c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen smc->read_cycle = active + 2; 1237c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 1247c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen /* (CS0, CS1, DIR, OE) <= (CFCE1, CFCE2, CFRNW, NCSX) timings */ 1251c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen smc->ncs_read_setup = 1; 1261c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen smc->ncs_read_pulse = smc->read_cycle - 2; 1277c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 1287c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen /* Write timings same as read timings */ 1297c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen smc->write_cycle = smc->read_cycle; 1307c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen smc->nwe_setup = smc->nrd_setup; 1317c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen smc->nwe_pulse = smc->nrd_pulse; 1327c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen smc->ncs_write_setup = smc->ncs_read_setup; 1337c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen smc->ncs_write_pulse = smc->ncs_read_pulse; 1347c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 1351c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen /* Do some debugging output of ATA and SMC timings */ 1361c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen dev_dbg(dev, "ATA: C=%d S=%d P=%d R=%d\n", 1371c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen ata->cyc8b, ata->setup, ata->act8b, ata->rec8b); 1381c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen 1391c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen dev_dbg(dev, "SMC: C=%d S=%d P=%d NS=%d NP=%d\n", 1407c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen smc->read_cycle, smc->nrd_setup, smc->nrd_pulse, 1411c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen smc->ncs_read_setup, smc->ncs_read_pulse); 1427c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 1437c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen /* Finally, configure the SMC */ 1447c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen return smc_set_configuration(info->cs, smc); 1457c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen} 1467c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 1477c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen/* 1487c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * Procedures for libATA. 1497c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen */ 1507c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsenstatic void pata_at32_set_piomode(struct ata_port *ap, struct ata_device *adev) 1517c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen{ 1527c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen struct ata_timing timing; 1537c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen struct at32_ide_info *info = ap->host->private_data; 1547c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 1557c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen int ret; 1567c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 1577c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen /* Compute ATA timing */ 1587c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ret = ata_timing_compute(adev, adev->pio_mode, &timing, 1000, 0); 1597c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen if (ret) { 1607c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen dev_warn(ap->dev, "Failed to compute ATA timing %d\n", ret); 1617c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen return; 1627c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen } 1637c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 1647c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen /* Setup SMC to ATA timing */ 1657c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ret = pata_at32_setup_timing(ap->dev, info, &timing); 1667c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen if (ret) { 1677c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen dev_warn(ap->dev, "Failed to setup ATA timing %d\n", ret); 1687c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen return; 1697c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen } 1707c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen} 1717c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 1727c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsenstatic struct scsi_host_template at32_sht = { 17368d1d07b510bb57a504588adc2bd2758adea0965Tejun Heo ATA_PIO_SHT(DRV_NAME), 1747c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen}; 1757c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 1767c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsenstatic struct ata_port_operations at32_port_ops = { 177029cfd6b74fc5c517865fad78cf4a3ea8d9b664aTejun Heo .inherits = &ata_sff_port_ops, 1787c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen .cable_detect = ata_cable_40wire, 179029cfd6b74fc5c517865fad78cf4a3ea8d9b664aTejun Heo .set_piomode = pata_at32_set_piomode, 1807c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen}; 1817c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 1827c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsenstatic int __init pata_at32_init_one(struct device *dev, 1837c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen struct at32_ide_info *info) 1847c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen{ 1857c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen struct ata_host *host; 1867c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen struct ata_port *ap; 1877c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 1887c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen host = ata_host_alloc(dev, 1); 1897c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen if (!host) 1907c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen return -ENOMEM; 1917c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 1927c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ap = host->ports[0]; 1937c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 1947c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen /* Setup ATA bindings */ 1957c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ap->ops = &at32_port_ops; 1967c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ap->pio_mask = PIO_MASK; 1973696df309971b3427cb9cb039138a1732a865a0bSergei Shtylyov ap->flags |= ATA_FLAG_SLAVE_POSS; 1987c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 1997c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen /* 2007c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * Since all 8-bit taskfile transfers has to go on the lower 2017c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * byte of the data bus and there is a bug in the SMC that 2027c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * makes it impossible to alter the bus width during runtime, 2037c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * we need to hardwire the address signals as follows: 2047c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * 2057c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * A_IDE(2:0) <= A_EBI(3:1) 2067c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * 2077c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * This makes all addresses on the EBI even, thus all data 2087c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * will be on the lower byte of the data bus. All addresses 2097c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * used by libATA need to be altered according to this. 2107c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen */ 2117c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ap->ioaddr.altstatus_addr = info->alt_addr + (0x06 << 1); 2127c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ap->ioaddr.ctl_addr = info->alt_addr + (0x06 << 1); 2137c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 2147c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ap->ioaddr.data_addr = info->ide_addr + (ATA_REG_DATA << 1); 2157c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ap->ioaddr.error_addr = info->ide_addr + (ATA_REG_ERR << 1); 2167c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ap->ioaddr.feature_addr = info->ide_addr + (ATA_REG_FEATURE << 1); 2177c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ap->ioaddr.nsect_addr = info->ide_addr + (ATA_REG_NSECT << 1); 2187c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ap->ioaddr.lbal_addr = info->ide_addr + (ATA_REG_LBAL << 1); 2197c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ap->ioaddr.lbam_addr = info->ide_addr + (ATA_REG_LBAM << 1); 2207c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ap->ioaddr.lbah_addr = info->ide_addr + (ATA_REG_LBAH << 1); 2217c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ap->ioaddr.device_addr = info->ide_addr + (ATA_REG_DEVICE << 1); 2227c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ap->ioaddr.status_addr = info->ide_addr + (ATA_REG_STATUS << 1); 2237c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ap->ioaddr.command_addr = info->ide_addr + (ATA_REG_CMD << 1); 2247c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 2257c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen /* Set info as private data of ATA host */ 2267c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen host->private_data = info; 2277c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 2287c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen /* Register ATA device and return */ 2299363c3825ea9ad76561eb48a395349dd29211ed6Tejun Heo return ata_host_activate(host, info->irq, ata_sff_interrupt, 2307c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen IRQF_SHARED | IRQF_TRIGGER_RISING, 2317c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen &at32_sht); 2327c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen} 2337c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 2347c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen/* 2357c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * This function may come in handy for people analyzing their own 2367c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen * EBI -> PATA adaptors. 2377c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen */ 2387c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#ifdef DEBUG_BUS 2397c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 2407c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsenstatic void __init pata_at32_debug_bus(struct device *dev, 2417c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen struct at32_ide_info *info) 2427c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen{ 2437c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen const int d1 = 0xff; 2447c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen const int d2 = 0x00; 2457c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 2467c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen int i; 2477c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 2487c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen /* Write 8-bit values (registers) */ 2497c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen iowrite8(d1, info->alt_addr + (0x06 << 1)); 2507c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen iowrite8(d2, info->alt_addr + (0x06 << 1)); 2517c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 2527c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen for (i = 0; i < 8; i++) { 2537c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen iowrite8(d1, info->ide_addr + (i << 1)); 2547c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen iowrite8(d2, info->ide_addr + (i << 1)); 2557c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen } 2567c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 2577c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen /* Write 16 bit values (data) */ 2587c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen iowrite16(d1, info->ide_addr); 2597c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen iowrite16(d1 << 8, info->ide_addr); 2607c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 2617c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen iowrite16(d1, info->ide_addr); 2627c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen iowrite16(d1 << 8, info->ide_addr); 2637c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen} 2647c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 2657c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#endif 2667c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 2677c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsenstatic int __init pata_at32_probe(struct platform_device *pdev) 2687c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen{ 2697c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen const struct ata_timing initial_timing = 2707c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen {XFER_PIO_0, 70, 290, 240, 600, 165, 150, 600, 0}; 2717c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 2727c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen struct device *dev = &pdev->dev; 2737c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen struct at32_ide_info *info; 2747c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen struct ide_platform_data *board = pdev->dev.platform_data; 2757c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen struct resource *res; 2767c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 2777c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen int irq; 2787c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen int ret; 2797c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 2807c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen if (!board) 2817c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen return -ENXIO; 2827c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 2837c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 2847c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen if (!res) 2857c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen return -ENXIO; 2867c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 2877c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen /* Retrive IRQ */ 2887c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen irq = platform_get_irq(pdev, 0); 2897c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen if (irq < 0) 2907c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen return irq; 2917c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 2921967b7ff75dca31a488fce113f94cabdd4f3d7bdJoe Perches /* Setup struct containing private information */ 2937c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info = kzalloc(sizeof(struct at32_ide_info), GFP_KERNEL); 2947c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen if (!info) 2957c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen return -ENOMEM; 2967c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 2977c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info->irq = irq; 2987c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info->cs = board->cs; 2997c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 3007c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen /* Request memory resources */ 3017c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info->res_ide.start = res->start + CF_IDE_OFFSET; 3027c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info->res_ide.end = info->res_ide.start + CF_RES_SIZE - 1; 3037c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info->res_ide.name = "ide"; 3047c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info->res_ide.flags = IORESOURCE_MEM; 3057c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 3067c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ret = request_resource(res, &info->res_ide); 3077c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen if (ret) 3087c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen goto err_req_res_ide; 3097c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 3107c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info->res_alt.start = res->start + CF_ALT_IDE_OFFSET; 3117c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info->res_alt.end = info->res_alt.start + CF_RES_SIZE - 1; 3127c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info->res_alt.name = "alt"; 3137c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info->res_alt.flags = IORESOURCE_MEM; 3147c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 3157c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ret = request_resource(res, &info->res_alt); 3167c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen if (ret) 3177c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen goto err_req_res_alt; 3187c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 3197c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen /* Setup non-timing elements of SMC */ 3207c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info->smc.bus_width = 2; /* 16 bit data bus */ 3217c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info->smc.nrd_controlled = 1; /* Sample data on rising edge of NRD */ 3227c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info->smc.nwe_controlled = 0; /* Drive data on falling edge of NCS */ 3237c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info->smc.nwait_mode = 3; /* NWAIT is in READY mode */ 3247c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info->smc.byte_write = 0; /* Byte select access type */ 3257c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info->smc.tdf_mode = 0; /* TDF optimization disabled */ 3267c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info->smc.tdf_cycles = 0; /* No TDF wait cycles */ 3277c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 3281c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen /* Setup SMC to ATA timing */ 3297c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ret = pata_at32_setup_timing(dev, info, &initial_timing); 3307c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen if (ret) 3317c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen goto err_setup_timing; 3327c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 3331c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen /* Map ATA address space */ 3347c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ret = -ENOMEM; 3357c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info->ide_addr = devm_ioremap(dev, info->res_ide.start, 16); 3367c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info->alt_addr = devm_ioremap(dev, info->res_alt.start, 16); 3377c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen if (!info->ide_addr || !info->alt_addr) 3387c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen goto err_ioremap; 3397c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 3407c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#ifdef DEBUG_BUS 3417c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen pata_at32_debug_bus(dev, info); 3427c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen#endif 3437c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 3441c20a493caa30c5d47a394f9dbd86e6282323db9Kristoffer Nyborg Gregertsen /* Setup and register ATA device */ 3457c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ret = pata_at32_init_one(dev, info); 3467c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen if (ret) 3477c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen goto err_ata_device; 3487c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 3497c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen return 0; 3507c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 3517c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen err_ata_device: 3527c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen err_ioremap: 3537c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen err_setup_timing: 3547c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen release_resource(&info->res_alt); 3557c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen err_req_res_alt: 3567c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen release_resource(&info->res_ide); 3577c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen err_req_res_ide: 3587c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen kfree(info); 3597c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 3607c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen return ret; 3617c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen} 3627c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 3637c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsenstatic int __exit pata_at32_remove(struct platform_device *pdev) 3647c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen{ 3657c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen struct ata_host *host = platform_get_drvdata(pdev); 3667c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen struct at32_ide_info *info; 3677c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 3687c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen if (!host) 3697c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen return 0; 3707c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 3717c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen info = host->private_data; 3727c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen ata_host_detach(host); 3737c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 3747c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen if (!info) 3757c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen return 0; 3767c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 3777c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen release_resource(&info->res_ide); 3787c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen release_resource(&info->res_alt); 3797c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 3807c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen kfree(info); 3817c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 3827c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen return 0; 3837c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen} 3847c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 385458622fcdc5b316de8d74efd7e610803f0308c14Kay Sievers/* work with hotplug and coldplug */ 386458622fcdc5b316de8d74efd7e610803f0308c14Kay SieversMODULE_ALIAS("platform:at32_ide"); 387458622fcdc5b316de8d74efd7e610803f0308c14Kay Sievers 3887c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsenstatic struct platform_driver pata_at32_driver = { 3897c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen .remove = __exit_p(pata_at32_remove), 3907c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen .driver = { 3917c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen .name = "at32_ide", 3927c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen .owner = THIS_MODULE, 3937c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen }, 3947c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen}; 3957c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 3967c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsenstatic int __init pata_at32_init(void) 3977c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen{ 3987c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen return platform_driver_probe(&pata_at32_driver, pata_at32_probe); 3997c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen} 4007c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 4017c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsenstatic void __exit pata_at32_exit(void) 4027c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen{ 4037c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen platform_driver_unregister(&pata_at32_driver); 4047c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen} 4057c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 4067c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsenmodule_init(pata_at32_init); 4077c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsenmodule_exit(pata_at32_exit); 4087c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg Gregertsen 4097c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg GregertsenMODULE_LICENSE("GPL"); 4107c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg GregertsenMODULE_DESCRIPTION("AVR32 SMC/CFC PATA Driver"); 4117c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg GregertsenMODULE_AUTHOR("Kristoffer Nyborg Gregertsen <kngregertsen@norway.atmel.com>"); 4127c9ef8e418374aec0a62e64d9b40d457634fd039Kristoffer Nyborg GregertsenMODULE_VERSION(DRV_VERSION); 413