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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org>
3 * Copyright (C) 2003 Red Hat <alan@redhat.com>
Sergei Shtylyov7b255432008-04-28 23:44:44 +02004 * Copyright (C) 2007-2008 MontaVista Software, Inc.
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +02005 * Copyright (C) 2007-2008 Bartlomiej Zolnierkiewicz
Linus Torvalds1da177e2005-04-16 15:20:36 -07006 *
7 * May be copied or modified under the terms of the GNU General Public License
8 *
Jeff Garzikbf4c7962005-11-18 22:55:47 +01009 * Documentation for CMD680:
10 * http://gkernel.sourceforge.net/specs/sii/sii-0680a-v1.31.pdf.bz2
11 *
12 * Documentation for SiI 3112:
13 * http://gkernel.sourceforge.net/specs/sii/3112A_SiI-DS-0095-B2.pdf.bz2
14 *
15 * Errata and other documentation only available under NDA.
Linus Torvalds1da177e2005-04-16 15:20:36 -070016 *
17 *
18 * FAQ Items:
19 * If you are using Marvell SATA-IDE adapters with Maxtor drives
Sergei Shtylyov7b255432008-04-28 23:44:44 +020020 * ensure the system is set up for ATA100/UDMA5, not UDMA6.
Linus Torvalds1da177e2005-04-16 15:20:36 -070021 *
22 * If you are using WD drives with SATA bridges you must set the
Sergei Shtylyov7b255432008-04-28 23:44:44 +020023 * drive to "Single". "Master" will hang.
Linus Torvalds1da177e2005-04-16 15:20:36 -070024 *
25 * If you have strange problems with nVidia chipset systems please
26 * see the SI support documentation and update your system BIOS
Robert P. J. Day3a4fa0a2007-10-19 23:10:43 +020027 * if necessary
Alan Cox8693d3e2007-03-03 17:48:54 +010028 *
29 * The Dell DRAC4 has some interesting features including effectively hot
30 * unplugging/replugging the virtual CD interface when the DRAC is reset.
31 * This often causes drivers/ide/siimage to panic but is ok with the rather
32 * smarter code in libata.
Bartlomiej Zolnierkiewicz328dcbb2007-07-20 01:11:54 +020033 *
34 * TODO:
35 * - IORDY fixes
36 * - VDMA support
Linus Torvalds1da177e2005-04-16 15:20:36 -070037 */
38
Linus Torvalds1da177e2005-04-16 15:20:36 -070039#include <linux/types.h>
40#include <linux/module.h>
41#include <linux/pci.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070042#include <linux/hdreg.h>
43#include <linux/ide.h>
44#include <linux/init.h>
Sergei Shtylyov7b255432008-04-28 23:44:44 +020045#include <linux/io.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070046
Linus Torvalds1da177e2005-04-16 15:20:36 -070047/**
48 * pdev_is_sata - check if device is SATA
49 * @pdev: PCI device to check
Sergei Shtylyov7b255432008-04-28 23:44:44 +020050 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070051 * Returns true if this is a SATA controller
52 */
Sergei Shtylyov7b255432008-04-28 23:44:44 +020053
Linus Torvalds1da177e2005-04-16 15:20:36 -070054static int pdev_is_sata(struct pci_dev *pdev)
55{
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +020056#ifdef CONFIG_BLK_DEV_IDE_SATA
Sergei Shtylyov7b255432008-04-28 23:44:44 +020057 switch (pdev->device) {
58 case PCI_DEVICE_ID_SII_3112:
59 case PCI_DEVICE_ID_SII_1210SA:
60 return 1;
61 case PCI_DEVICE_ID_SII_680:
62 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -070063 }
64 BUG();
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +020065#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070066 return 0;
67}
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +020068
Linus Torvalds1da177e2005-04-16 15:20:36 -070069/**
70 * is_sata - check if hwif is SATA
71 * @hwif: interface to check
Sergei Shtylyov7b255432008-04-28 23:44:44 +020072 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070073 * Returns true if this is a SATA controller
74 */
Sergei Shtylyov7b255432008-04-28 23:44:44 +020075
Linus Torvalds1da177e2005-04-16 15:20:36 -070076static inline int is_sata(ide_hwif_t *hwif)
77{
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +010078 return pdev_is_sata(to_pci_dev(hwif->dev));
Linus Torvalds1da177e2005-04-16 15:20:36 -070079}
80
81/**
82 * siimage_selreg - return register base
83 * @hwif: interface
84 * @r: config offset
85 *
86 * Turn a config register offset into the right address in either
87 * PCI space or MMIO space to access the control register in question
Sergei Shtylyov7b255432008-04-28 23:44:44 +020088 * Thankfully this is a configuration operation, so isn't performance
89 * critical.
Linus Torvalds1da177e2005-04-16 15:20:36 -070090 */
Sergei Shtylyov7b255432008-04-28 23:44:44 +020091
Linus Torvalds1da177e2005-04-16 15:20:36 -070092static unsigned long siimage_selreg(ide_hwif_t *hwif, int r)
93{
94 unsigned long base = (unsigned long)hwif->hwif_data;
Sergei Shtylyov7b255432008-04-28 23:44:44 +020095
Linus Torvalds1da177e2005-04-16 15:20:36 -070096 base += 0xA0 + r;
Bartlomiej Zolnierkiewicz13572142008-07-15 21:21:49 +020097 if (hwif->host_flags & IDE_HFLAG_MMIO)
Sergei Shtylyov7b255432008-04-28 23:44:44 +020098 base += hwif->channel << 6;
Linus Torvalds1da177e2005-04-16 15:20:36 -070099 else
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200100 base += hwif->channel << 4;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101 return base;
102}
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200103
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104/**
105 * siimage_seldev - return register base
106 * @hwif: interface
107 * @r: config offset
108 *
109 * Turn a config register offset into the right address in either
110 * PCI space or MMIO space to access the control register in question
111 * including accounting for the unit shift.
112 */
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200113
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114static inline unsigned long siimage_seldev(ide_drive_t *drive, int r)
115{
116 ide_hwif_t *hwif = HWIF(drive);
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200117 unsigned long base = (unsigned long)hwif->hwif_data;
118
Linus Torvalds1da177e2005-04-16 15:20:36 -0700119 base += 0xA0 + r;
Bartlomiej Zolnierkiewicz13572142008-07-15 21:21:49 +0200120 if (hwif->host_flags & IDE_HFLAG_MMIO)
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200121 base += hwif->channel << 6;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122 else
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200123 base += hwif->channel << 4;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124 base |= drive->select.b.unit << drive->select.b.unit;
125 return base;
126}
127
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200128static u8 sil_ioread8(struct pci_dev *dev, unsigned long addr)
129{
130 u8 tmp = 0;
131
132 if (pci_get_drvdata(dev))
133 tmp = readb((void __iomem *)addr);
134 else
135 pci_read_config_byte(dev, addr, &tmp);
136
137 return tmp;
138}
139
140static u16 sil_ioread16(struct pci_dev *dev, unsigned long addr)
141{
142 u16 tmp = 0;
143
144 if (pci_get_drvdata(dev))
145 tmp = readw((void __iomem *)addr);
146 else
147 pci_read_config_word(dev, addr, &tmp);
148
149 return tmp;
150}
151
152static void sil_iowrite8(struct pci_dev *dev, u8 val, unsigned long addr)
153{
154 if (pci_get_drvdata(dev))
155 writeb(val, (void __iomem *)addr);
156 else
157 pci_write_config_byte(dev, addr, val);
158}
159
160static void sil_iowrite16(struct pci_dev *dev, u16 val, unsigned long addr)
161{
162 if (pci_get_drvdata(dev))
163 writew(val, (void __iomem *)addr);
164 else
165 pci_write_config_word(dev, addr, val);
166}
167
168static void sil_iowrite32(struct pci_dev *dev, u32 val, unsigned long addr)
169{
170 if (pci_get_drvdata(dev))
171 writel(val, (void __iomem *)addr);
172 else
173 pci_write_config_dword(dev, addr, val);
174}
175
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176/**
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200177 * sil_udma_filter - compute UDMA mask
178 * @drive: IDE device
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179 *
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200180 * Compute the available UDMA speeds for the device on the interface.
181 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182 * For the CMD680 this depends on the clocking mode (scsc), for the
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200183 * SI3112 SATA controller life is a bit simpler.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184 */
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200185
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200186static u8 sil_pata_udma_filter(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187{
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200188 ide_hwif_t *hwif = drive->hwif;
189 struct pci_dev *dev = to_pci_dev(hwif->dev);
190 unsigned long base = (unsigned long)hwif->hwif_data;
191 u8 scsc, mask = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192
Bartlomiej Zolnierkiewicz13572142008-07-15 21:21:49 +0200193 base += (hwif->host_flags & IDE_HFLAG_MMIO) ? 0x4A : 0x8A;
194
195 scsc = sil_ioread8(dev, base);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200197 switch (scsc & 0x30) {
198 case 0x10: /* 133 */
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200199 mask = ATA_UDMA6;
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200200 break;
201 case 0x20: /* 2xPCI */
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200202 mask = ATA_UDMA6;
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200203 break;
204 case 0x00: /* 100 */
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200205 mask = ATA_UDMA5;
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200206 break;
207 default: /* Disabled ? */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208 BUG();
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200209 }
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200210
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200211 return mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212}
213
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200214static u8 sil_sata_udma_filter(ide_drive_t *drive)
215{
216 return strstr(drive->id->model, "Maxtor") ? ATA_UDMA5 : ATA_UDMA6;
217}
218
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219/**
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +0200220 * sil_set_pio_mode - set host controller for PIO mode
221 * @drive: drive
222 * @pio: PIO mode number
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223 *
224 * Load the timing settings for this device mode into the
225 * controller. If we are in PIO mode 3 or 4 turn on IORDY
226 * monitoring (bit 9). The TF timing is bits 31:16
227 */
Bartlomiej Zolnierkiewicz328dcbb2007-07-20 01:11:54 +0200228
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +0200229static void sil_set_pio_mode(ide_drive_t *drive, u8 pio)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230{
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200231 static const u16 tf_speed[] = { 0x328a, 0x2283, 0x1281, 0x10c3, 0x10c1 };
232 static const u16 data_speed[] = { 0x328a, 0x2283, 0x1104, 0x10c3, 0x10c1 };
Bartlomiej Zolnierkiewicz328dcbb2007-07-20 01:11:54 +0200233
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234 ide_hwif_t *hwif = HWIF(drive);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200235 struct pci_dev *dev = to_pci_dev(hwif->dev);
Benjamin Herrenschmidta87a87c2007-10-19 00:30:05 +0200236 ide_drive_t *pair = ide_get_paired_drive(drive);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237 u32 speedt = 0;
238 u16 speedp = 0;
239 unsigned long addr = siimage_seldev(drive, 0x04);
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200240 unsigned long tfaddr = siimage_selreg(hwif, 0x02);
Bartlomiej Zolnierkiewiczffe54152007-10-11 23:54:01 +0200241 unsigned long base = (unsigned long)hwif->hwif_data;
Bartlomiej Zolnierkiewicz328dcbb2007-07-20 01:11:54 +0200242 u8 tf_pio = pio;
Bartlomiej Zolnierkiewicz13572142008-07-15 21:21:49 +0200243 u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
244 u8 addr_mask = hwif->channel ? (mmio ? 0xF4 : 0x84)
245 : (mmio ? 0xB4 : 0x80);
Bartlomiej Zolnierkiewiczffe54152007-10-11 23:54:01 +0200246 u8 mode = 0;
247 u8 unit = drive->select.b.unit;
Bartlomiej Zolnierkiewicz328dcbb2007-07-20 01:11:54 +0200248
249 /* trim *taskfile* PIO to the slowest of the master/slave */
250 if (pair->present) {
Bartlomiej Zolnierkiewicz21347582007-07-20 01:11:58 +0200251 u8 pair_pio = ide_get_best_pio_mode(pair, 255, 4);
Bartlomiej Zolnierkiewicz328dcbb2007-07-20 01:11:54 +0200252
253 if (pair_pio < tf_pio)
254 tf_pio = pair_pio;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255 }
Sergei Shtylyov075cb652007-02-17 02:40:22 +0100256
Bartlomiej Zolnierkiewicz328dcbb2007-07-20 01:11:54 +0200257 /* cheat for now and use the docs */
258 speedp = data_speed[pio];
259 speedt = tf_speed[tf_pio];
260
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200261 sil_iowrite16(dev, speedp, addr);
262 sil_iowrite16(dev, speedt, tfaddr);
Bartlomiej Zolnierkiewiczffe54152007-10-11 23:54:01 +0200263
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200264 /* now set up IORDY */
265 speedp = sil_ioread16(dev, tfaddr - 2);
266 speedp &= ~0x200;
267 if (pio > 2)
268 speedp |= 0x200;
269 sil_iowrite16(dev, speedp, tfaddr - 2);
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100270
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200271 mode = sil_ioread8(dev, base + addr_mask);
272 mode &= ~(unit ? 0x30 : 0x03);
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200273 mode |= unit ? 0x10 : 0x01;
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200274 sil_iowrite8(dev, mode, base + addr_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275}
276
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277/**
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +0200278 * sil_set_dma_mode - set host controller for DMA mode
279 * @drive: drive
280 * @speed: DMA mode
Linus Torvalds1da177e2005-04-16 15:20:36 -0700281 *
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +0200282 * Tune the SiI chipset for the desired DMA mode.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283 */
Bartlomiej Zolnierkiewiczf212ff22007-10-11 23:53:59 +0200284
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +0200285static void sil_set_dma_mode(ide_drive_t *drive, const u8 speed)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286{
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200287 static const u8 ultra6[] = { 0x0F, 0x0B, 0x07, 0x05, 0x03, 0x02, 0x01 };
288 static const u8 ultra5[] = { 0x0C, 0x07, 0x05, 0x04, 0x02, 0x01 };
289 static const u16 dma[] = { 0x2208, 0x10C2, 0x10C1 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700290
291 ide_hwif_t *hwif = HWIF(drive);
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100292 struct pci_dev *dev = to_pci_dev(hwif->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293 u16 ultra = 0, multi = 0;
294 u8 mode = 0, unit = drive->select.b.unit;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295 unsigned long base = (unsigned long)hwif->hwif_data;
Bartlomiej Zolnierkiewicz13572142008-07-15 21:21:49 +0200296 u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
297 u8 scsc = 0, addr_mask = hwif->channel ? (mmio ? 0xF4 : 0x84)
298 : (mmio ? 0xB4 : 0x80);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299 unsigned long ma = siimage_seldev(drive, 0x08);
300 unsigned long ua = siimage_seldev(drive, 0x0C);
301
Bartlomiej Zolnierkiewicz13572142008-07-15 21:21:49 +0200302 scsc = sil_ioread8 (dev, base + (mmio ? 0x4A : 0x8A));
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200303 mode = sil_ioread8 (dev, base + addr_mask);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200304 multi = sil_ioread16(dev, ma);
305 ultra = sil_ioread16(dev, ua);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200307 mode &= ~(unit ? 0x30 : 0x03);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308 ultra &= ~0x3F;
309 scsc = ((scsc & 0x30) == 0x00) ? 0 : 1;
310
311 scsc = is_sata(hwif) ? 1 : scsc;
312
Bartlomiej Zolnierkiewicz4db90a12008-01-25 22:17:18 +0100313 if (speed >= XFER_UDMA_0) {
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200314 multi = dma[2];
315 ultra |= scsc ? ultra6[speed - XFER_UDMA_0] :
316 ultra5[speed - XFER_UDMA_0];
317 mode |= unit ? 0x30 : 0x03;
Bartlomiej Zolnierkiewicz4db90a12008-01-25 22:17:18 +0100318 } else {
319 multi = dma[speed - XFER_MW_DMA_0];
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200320 mode |= unit ? 0x20 : 0x02;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321 }
322
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200323 sil_iowrite8 (dev, mode, base + addr_mask);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200324 sil_iowrite16(dev, multi, ma);
325 sil_iowrite16(dev, ultra, ua);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326}
327
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328/* returns 1 if dma irq issued, 0 otherwise */
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200329static int siimage_io_dma_test_irq(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330{
331 ide_hwif_t *hwif = HWIF(drive);
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100332 struct pci_dev *dev = to_pci_dev(hwif->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333 u8 dma_altstat = 0;
334 unsigned long addr = siimage_selreg(hwif, 1);
335
336 /* return 1 if INTR asserted */
Bartlomiej Zolnierkiewiczcab7f8e2008-07-23 19:55:51 +0200337 if (inb(hwif->dma_base + ATA_DMA_STATUS) & 4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338 return 1;
339
340 /* return 1 if Device INTR asserted */
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100341 pci_read_config_byte(dev, addr, &dma_altstat);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 if (dma_altstat & 8)
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200343 return 0; /* return 1; */
344
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345 return 0;
346}
347
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348/**
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200349 * siimage_mmio_dma_test_irq - check we caused an IRQ
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350 * @drive: drive we are testing
351 *
352 * Check if we caused an IDE DMA interrupt. We may also have caused
353 * SATA status interrupts, if so we clean them up and continue.
354 */
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200355
356static int siimage_mmio_dma_test_irq(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357{
358 ide_hwif_t *hwif = HWIF(drive);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359 unsigned long addr = siimage_selreg(hwif, 0x1);
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100360 void __iomem *sata_error_addr
361 = (void __iomem *)hwif->sata_scr[SATA_ERROR_OFFSET];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100363 if (sata_error_addr) {
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200364 unsigned long base = (unsigned long)hwif->hwif_data;
365 u32 ext_stat = readl((void __iomem *)(base + 0x10));
366 u8 watchdog = 0;
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100367
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368 if (ext_stat & ((hwif->channel) ? 0x40 : 0x10)) {
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100369 u32 sata_error = readl(sata_error_addr);
370
371 writel(sata_error, sata_error_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372 watchdog = (sata_error & 0x00680000) ? 1 : 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373 printk(KERN_WARNING "%s: sata_error = 0x%08x, "
374 "watchdog = %d, %s\n",
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200375 drive->name, sata_error, watchdog, __func__);
376 } else
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377 watchdog = (ext_stat & 0x8000) ? 1 : 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200379 ext_stat >>= 16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380 if (!(ext_stat & 0x0404) && !watchdog)
381 return 0;
382 }
383
384 /* return 1 if INTR asserted */
Bartlomiej Zolnierkiewiczcab7f8e2008-07-23 19:55:51 +0200385 if (readb((void __iomem *)(hwif->dma_base + ATA_DMA_STATUS)) & 4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386 return 1;
387
388 /* return 1 if Device INTR asserted */
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200389 if (readb((void __iomem *)addr) & 8)
390 return 0; /* return 1; */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391
392 return 0;
393}
394
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200395static int siimage_dma_test_irq(ide_drive_t *drive)
396{
Bartlomiej Zolnierkiewicz13572142008-07-15 21:21:49 +0200397 if (drive->hwif->host_flags & IDE_HFLAG_MMIO)
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200398 return siimage_mmio_dma_test_irq(drive);
399 else
400 return siimage_io_dma_test_irq(drive);
401}
402
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403/**
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200404 * sil_sata_reset_poll - wait for SATA reset
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405 * @drive: drive we are resetting
406 *
407 * Poll the SATA phy and see whether it has come back from the dead
408 * yet.
409 */
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200410
411static int sil_sata_reset_poll(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412{
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100413 ide_hwif_t *hwif = drive->hwif;
414 void __iomem *sata_status_addr
415 = (void __iomem *)hwif->sata_scr[SATA_STATUS_OFFSET];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100417 if (sata_status_addr) {
418 /* SATA Status is available only when in MMIO mode */
419 u32 sata_stat = readl(sata_status_addr);
420
421 if ((sata_stat & 0x03) != 0x03) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422 printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n",
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100423 hwif->name, sata_stat);
Elias Oltmanns64a8f002008-07-16 20:33:48 +0200424 return -ENXIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426 }
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200427
428 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429}
430
431/**
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200432 * sil_sata_pre_reset - reset hook
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433 * @drive: IDE device being reset
434 *
435 * For the SATA devices we need to handle recalibration/geometry
436 * differently
437 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200439static void sil_sata_pre_reset(ide_drive_t *drive)
440{
441 if (drive->media == ide_disk) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442 drive->special.b.set_geometry = 0;
443 drive->special.b.recalibrate = 0;
444 }
445}
446
447/**
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200448 * setup_mmio_siimage - switch controller into MMIO mode
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449 * @dev: PCI device we are configuring
450 * @name: device name
451 *
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200452 * Attempt to put the device into MMIO mode. There are some slight
453 * complications here with certain systems where the MMIO BAR isn't
454 * mapped, so we have to be sure that we can fall back to I/O.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455 */
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200456
457static unsigned int setup_mmio_siimage(struct pci_dev *dev, const char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458{
Sergei Shtylyovc9768162008-04-07 23:30:10 +0200459 resource_size_t bar5 = pci_resource_start(dev, 5);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460 unsigned long barsize = pci_resource_len(dev, 5);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461 void __iomem *ioaddr;
462
463 /*
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200464 * Drop back to PIO if we can't map the MMIO. Some systems
465 * seem to get terminally confused in the PCI spaces.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700466 */
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200467 if (!request_mem_region(bar5, barsize, name)) {
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200468 printk(KERN_WARNING "siimage: IDE controller MMIO ports not "
469 "available.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700470 return 0;
471 }
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200472
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473 ioaddr = ioremap(bar5, barsize);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200474 if (ioaddr == NULL) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700475 release_mem_region(bar5, barsize);
476 return 0;
477 }
478
479 pci_set_master(dev);
480 pci_set_drvdata(dev, (void *) ioaddr);
481
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482 return 1;
483}
484
485/**
486 * init_chipset_siimage - set up an SI device
487 * @dev: PCI device
488 * @name: device name
489 *
490 * Perform the initial PCI set up for this device. Attempt to switch
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200491 * to 133 MHz clocking if the system isn't already set up to do it.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492 */
493
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200494static unsigned int __devinit init_chipset_siimage(struct pci_dev *dev,
495 const char *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700496{
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200497 unsigned long base, scsc_addr;
498 void __iomem *ioaddr = NULL;
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200499 u8 rev = dev->revision, tmp, BA5_EN;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700500
Bartlomiej Zolnierkiewiczfc212bb2007-10-19 00:30:08 +0200501 pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, rev ? 1 : 255);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502
503 pci_read_config_byte(dev, 0x8A, &BA5_EN);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200504
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200505 if ((BA5_EN & 0x01) || pci_resource_start(dev, 5))
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200506 if (setup_mmio_siimage(dev, name))
507 ioaddr = pci_get_drvdata(dev);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200508
509 base = (unsigned long)ioaddr;
510
511 if (ioaddr && pdev_is_sata(dev)) {
512 u32 tmp32, irq_mask;
513
514 /* make sure IDE0/1 interrupts are not masked */
515 irq_mask = (1 << 22) | (1 << 23);
516 tmp32 = readl(ioaddr + 0x48);
517 if (tmp32 & irq_mask) {
518 tmp32 &= ~irq_mask;
519 writel(tmp32, ioaddr + 0x48);
520 readl(ioaddr + 0x48); /* flush */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521 }
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200522 writel(0, ioaddr + 0x148);
523 writel(0, ioaddr + 0x1C8);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524 }
525
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200526 sil_iowrite8(dev, 0, base ? (base + 0xB4) : 0x80);
527 sil_iowrite8(dev, 0, base ? (base + 0xF4) : 0x84);
528
529 scsc_addr = base ? (base + 0x4A) : 0x8A;
530 tmp = sil_ioread8(dev, scsc_addr);
531
532 switch (tmp & 0x30) {
533 case 0x00:
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200534 /* On 100 MHz clocking, try and switch to 133 MHz */
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200535 sil_iowrite8(dev, tmp | 0x10, scsc_addr);
536 break;
537 case 0x30:
538 /* Clocking is disabled, attempt to force 133MHz clocking. */
539 sil_iowrite8(dev, tmp & ~0x20, scsc_addr);
540 case 0x10:
541 /* On 133Mhz clocking. */
542 break;
543 case 0x20:
544 /* On PCIx2 clocking. */
545 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700546 }
547
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200548 tmp = sil_ioread8(dev, scsc_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700549
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200550 sil_iowrite8 (dev, 0x72, base + 0xA1);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200551 sil_iowrite16(dev, 0x328A, base + 0xA2);
552 sil_iowrite32(dev, 0x62DD62DD, base + 0xA4);
553 sil_iowrite32(dev, 0x43924392, base + 0xA8);
554 sil_iowrite32(dev, 0x40094009, base + 0xAC);
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200555 sil_iowrite8 (dev, 0x72, base ? (base + 0xE1) : 0xB1);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200556 sil_iowrite16(dev, 0x328A, base ? (base + 0xE2) : 0xB2);
557 sil_iowrite32(dev, 0x62DD62DD, base ? (base + 0xE4) : 0xB4);
558 sil_iowrite32(dev, 0x43924392, base ? (base + 0xE8) : 0xB8);
559 sil_iowrite32(dev, 0x40094009, base ? (base + 0xEC) : 0xBC);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700560
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200561 if (base && pdev_is_sata(dev)) {
562 writel(0xFFFF0000, ioaddr + 0x108);
563 writel(0xFFFF0000, ioaddr + 0x188);
564 writel(0x00680000, ioaddr + 0x148);
565 writel(0x00680000, ioaddr + 0x1C8);
566 }
567
Bartlomiej Zolnierkiewicz24cc4342008-04-28 23:44:38 +0200568 /* report the clocking mode of the controller */
569 if (!pdev_is_sata(dev)) {
570 static const char *clk_str[] =
571 { "== 100", "== 133", "== 2X PCI", "DISABLED!" };
572
573 tmp >>= 4;
574 printk(KERN_INFO "%s: BASE CLOCK %s\n", name, clk_str[tmp & 3]);
575 }
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200576
Linus Torvalds1da177e2005-04-16 15:20:36 -0700577 return 0;
578}
579
580/**
581 * init_mmio_iops_siimage - set up the iops for MMIO
582 * @hwif: interface to set up
583 *
584 * The basic setup here is fairly simple, we can use standard MMIO
585 * operations. However we do have to set the taskfile register offsets
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200586 * by hand as there isn't a standard defined layout for them this time.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700587 *
588 * The hardware supports buffered taskfiles and also some rather nice
Alan Cox19c1ef52006-06-28 04:26:59 -0700589 * extended PRD tables. For better SI3112 support use the libata driver
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590 */
591
592static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif)
593{
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100594 struct pci_dev *dev = to_pci_dev(hwif->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700595 void *addr = pci_get_drvdata(dev);
596 u8 ch = hwif->channel;
Bartlomiej Zolnierkiewicz4c3032d2008-04-27 15:38:32 +0200597 struct ide_io_ports *io_ports = &hwif->io_ports;
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200598 unsigned long base;
Bartlomiej Zolnierkiewicz4c3032d2008-04-27 15:38:32 +0200599
Linus Torvalds1da177e2005-04-16 15:20:36 -0700600 /*
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200601 * Fill in the basic hwif bits
Linus Torvalds1da177e2005-04-16 15:20:36 -0700602 */
Bartlomiej Zolnierkiewiczc5dd43e2008-04-28 23:44:37 +0200603 hwif->host_flags |= IDE_HFLAG_MMIO;
Bartlomiej Zolnierkiewicz761052e2008-07-23 19:55:54 +0200604
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200605 hwif->hwif_data = addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700606
607 /*
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200608 * Now set up the hw. We have to do this ourselves as the
609 * MMIO layout isn't the same as the standard port based I/O.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700610 */
Bartlomiej Zolnierkiewicz4c3032d2008-04-27 15:38:32 +0200611 memset(io_ports, 0, sizeof(*io_ports));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700612
613 base = (unsigned long)addr;
614 if (ch)
615 base += 0xC0;
616 else
617 base += 0x80;
618
619 /*
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200620 * The buffered task file doesn't have status/control, so we
621 * can't currently use it sanely since we want to use LBA48 mode.
622 */
Bartlomiej Zolnierkiewicz4c3032d2008-04-27 15:38:32 +0200623 io_ports->data_addr = base;
624 io_ports->error_addr = base + 1;
625 io_ports->nsect_addr = base + 2;
626 io_ports->lbal_addr = base + 3;
627 io_ports->lbam_addr = base + 4;
628 io_ports->lbah_addr = base + 5;
629 io_ports->device_addr = base + 6;
630 io_ports->status_addr = base + 7;
631 io_ports->ctl_addr = base + 10;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632
633 if (pdev_is_sata(dev)) {
634 base = (unsigned long)addr;
635 if (ch)
636 base += 0x80;
637 hwif->sata_scr[SATA_STATUS_OFFSET] = base + 0x104;
638 hwif->sata_scr[SATA_ERROR_OFFSET] = base + 0x108;
639 hwif->sata_scr[SATA_CONTROL_OFFSET] = base + 0x100;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700640 }
641
Bartlomiej Zolnierkiewicz9239b332007-10-20 00:32:33 +0200642 hwif->irq = dev->irq;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700643
Bartlomiej Zolnierkiewicz9239b332007-10-20 00:32:33 +0200644 hwif->dma_base = (unsigned long)addr + (ch ? 0x08 : 0x00);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700645}
646
647static int is_dev_seagate_sata(ide_drive_t *drive)
648{
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200649 const char *s = &drive->id->model[0];
650 unsigned len = strnlen(s, sizeof(drive->id->model));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200652 if ((len > 4) && (!memcmp(s, "ST", 2)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653 if ((!memcmp(s + len - 2, "AS", 2)) ||
654 (!memcmp(s + len - 3, "ASL", 3))) {
655 printk(KERN_INFO "%s: applying pessimistic Seagate "
656 "errata fix\n", drive->name);
657 return 1;
658 }
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200659
Linus Torvalds1da177e2005-04-16 15:20:36 -0700660 return 0;
661}
662
663/**
Bartlomiej Zolnierkiewiczf01393e2008-01-26 20:13:03 +0100664 * sil_quirkproc - post probe fixups
665 * @drive: drive
Linus Torvalds1da177e2005-04-16 15:20:36 -0700666 *
667 * Called after drive probe we use this to decide whether the
668 * Seagate fixup must be applied. This used to be in init_iops but
669 * that can occur before we know what drives are present.
670 */
671
Bartlomiej Zolnierkiewiczf01393e2008-01-26 20:13:03 +0100672static void __devinit sil_quirkproc(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673{
Bartlomiej Zolnierkiewiczf01393e2008-01-26 20:13:03 +0100674 ide_hwif_t *hwif = drive->hwif;
675
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200676 /* Try and rise the rqsize */
Bartlomiej Zolnierkiewiczf01393e2008-01-26 20:13:03 +0100677 if (!is_sata(hwif) || !is_dev_seagate_sata(drive))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678 hwif->rqsize = 128;
679}
680
681/**
682 * init_iops_siimage - set up iops
683 * @hwif: interface to set up
684 *
685 * Do the basic setup for the SIIMAGE hardware interface
686 * and then do the MMIO setup if we can. This is the first
687 * look in we get for setting up the hwif so that we
688 * can get the iops right before using them.
689 */
690
691static void __devinit init_iops_siimage(ide_hwif_t *hwif)
692{
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100693 struct pci_dev *dev = to_pci_dev(hwif->dev);
694
Linus Torvalds1da177e2005-04-16 15:20:36 -0700695 hwif->hwif_data = NULL;
696
697 /* Pessimal until we finish probing */
698 hwif->rqsize = 15;
699
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100700 if (pci_get_drvdata(dev) == NULL)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700701 return;
Bartlomiej Zolnierkiewiczfc212bb2007-10-19 00:30:08 +0200702
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703 init_mmio_iops_siimage(hwif);
704}
705
706/**
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200707 * sil_cable_detect - cable detection
Linus Torvalds1da177e2005-04-16 15:20:36 -0700708 * @hwif: interface to check
709 *
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200710 * Check for the presence of an ATA66 capable cable on the interface.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700711 */
712
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200713static u8 __devinit sil_cable_detect(ide_hwif_t *hwif)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714{
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200715 struct pci_dev *dev = to_pci_dev(hwif->dev);
716 unsigned long addr = siimage_selreg(hwif, 0);
717 u8 ata66 = sil_ioread8(dev, addr);
Bartlomiej Zolnierkiewicz49521f92007-07-09 23:17:58 +0200718
719 return (ata66 & 0x01) ? ATA_CBL_PATA80 : ATA_CBL_PATA40;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700720}
721
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200722static const struct ide_port_ops sil_pata_port_ops = {
723 .set_pio_mode = sil_set_pio_mode,
724 .set_dma_mode = sil_set_dma_mode,
725 .quirkproc = sil_quirkproc,
726 .udma_filter = sil_pata_udma_filter,
727 .cable_detect = sil_cable_detect,
728};
729
730static const struct ide_port_ops sil_sata_port_ops = {
731 .set_pio_mode = sil_set_pio_mode,
732 .set_dma_mode = sil_set_dma_mode,
733 .reset_poll = sil_sata_reset_poll,
734 .pre_reset = sil_sata_pre_reset,
735 .quirkproc = sil_quirkproc,
736 .udma_filter = sil_sata_udma_filter,
737 .cable_detect = sil_cable_detect,
738};
739
Benjamin Herrenschmidtb26b0c52008-04-29 22:57:37 +0200740static const struct ide_dma_ops sil_dma_ops = {
741 .dma_host_set = ide_dma_host_set,
742 .dma_setup = ide_dma_setup,
743 .dma_exec_cmd = ide_dma_exec_cmd,
744 .dma_start = ide_dma_start,
745 .dma_end = __ide_dma_end,
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200746 .dma_test_irq = siimage_dma_test_irq,
Benjamin Herrenschmidtb26b0c52008-04-29 22:57:37 +0200747 .dma_timeout = ide_dma_timeout,
748 .dma_lost_irq = ide_dma_lost_irq,
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200749};
750
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200751#define DECLARE_SII_DEV(name_str, p_ops) \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700752 { \
753 .name = name_str, \
754 .init_chipset = init_chipset_siimage, \
755 .init_iops = init_iops_siimage, \
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200756 .port_ops = p_ops, \
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200757 .dma_ops = &sil_dma_ops, \
Bartlomiej Zolnierkiewicz4099d142007-07-20 01:11:59 +0200758 .pio_mask = ATA_PIO4, \
Bartlomiej Zolnierkiewicz5f8b6c32007-10-19 00:30:07 +0200759 .mwdma_mask = ATA_MWDMA2, \
760 .udma_mask = ATA_UDMA6, \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761 }
762
Bartlomiej Zolnierkiewicz85620432007-10-20 00:32:34 +0200763static const struct ide_port_info siimage_chipsets[] __devinitdata = {
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200764 /* 0 */ DECLARE_SII_DEV("SiI680", &sil_pata_port_ops),
765 /* 1 */ DECLARE_SII_DEV("SiI3112 Serial ATA", &sil_sata_port_ops),
766 /* 2 */ DECLARE_SII_DEV("Adaptec AAR-1210SA", &sil_sata_port_ops)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700767};
768
769/**
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200770 * siimage_init_one - PCI layer discovery entry
Linus Torvalds1da177e2005-04-16 15:20:36 -0700771 * @dev: PCI device
772 * @id: ident table entry
773 *
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200774 * Called by the PCI code when it finds an SiI680 or SiI3112 controller.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700775 * We then use the IDE PCI generic helper to do most of the work.
776 */
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200777
778static int __devinit siimage_init_one(struct pci_dev *dev,
779 const struct pci_device_id *id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700780{
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200781 struct ide_port_info d;
782 u8 idx = id->driver_data;
783
784 d = siimage_chipsets[idx];
785
786 if (idx) {
787 static int first = 1;
788
789 if (first) {
790 printk(KERN_INFO "siimage: For full SATA support you "
791 "should use the libata sata_sil module.\n");
792 first = 0;
793 }
794
795 d.host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
796 }
797
Bartlomiej Zolnierkiewicz6cdf6eb2008-07-24 22:53:14 +0200798 return ide_pci_init_one(dev, &d, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700799}
800
Bartlomiej Zolnierkiewicz9cbcc5e2007-10-16 22:29:56 +0200801static const struct pci_device_id siimage_pci_tbl[] = {
802 { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_680), 0 },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700803#ifdef CONFIG_BLK_DEV_IDE_SATA
Bartlomiej Zolnierkiewicz9cbcc5e2007-10-16 22:29:56 +0200804 { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_3112), 1 },
805 { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_1210SA), 2 },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700806#endif
807 { 0, },
808};
809MODULE_DEVICE_TABLE(pci, siimage_pci_tbl);
810
811static struct pci_driver driver = {
812 .name = "SiI_IDE",
813 .id_table = siimage_pci_tbl,
814 .probe = siimage_init_one,
815};
816
Bartlomiej Zolnierkiewicz82ab1ee2007-01-27 13:46:56 +0100817static int __init siimage_ide_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700818{
819 return ide_pci_register_driver(&driver);
820}
821
822module_init(siimage_ide_init);
823
824MODULE_AUTHOR("Andre Hedrick, Alan Cox");
825MODULE_DESCRIPTION("PCI driver module for SiI IDE");
826MODULE_LICENSE("GPL");