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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>
Alan Coxccd32e22008-11-02 21:40:08 +01003 * Copyright (C) 2003 Red Hat
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/ide.h>
43#include <linux/init.h>
Sergei Shtylyov7b255432008-04-28 23:44:44 +020044#include <linux/io.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070045
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +020046#define DRV_NAME "siimage"
47
Linus Torvalds1da177e2005-04-16 15:20:36 -070048/**
49 * pdev_is_sata - check if device is SATA
50 * @pdev: PCI device to check
Sergei Shtylyov7b255432008-04-28 23:44:44 +020051 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070052 * Returns true if this is a SATA controller
53 */
Sergei Shtylyov7b255432008-04-28 23:44:44 +020054
Linus Torvalds1da177e2005-04-16 15:20:36 -070055static int pdev_is_sata(struct pci_dev *pdev)
56{
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +020057#ifdef CONFIG_BLK_DEV_IDE_SATA
Sergei Shtylyov7b255432008-04-28 23:44:44 +020058 switch (pdev->device) {
59 case PCI_DEVICE_ID_SII_3112:
60 case PCI_DEVICE_ID_SII_1210SA:
61 return 1;
62 case PCI_DEVICE_ID_SII_680:
63 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -070064 }
65 BUG();
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +020066#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070067 return 0;
68}
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +020069
Linus Torvalds1da177e2005-04-16 15:20:36 -070070/**
71 * is_sata - check if hwif is SATA
72 * @hwif: interface to check
Sergei Shtylyov7b255432008-04-28 23:44:44 +020073 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070074 * Returns true if this is a SATA controller
75 */
Sergei Shtylyov7b255432008-04-28 23:44:44 +020076
Linus Torvalds1da177e2005-04-16 15:20:36 -070077static inline int is_sata(ide_hwif_t *hwif)
78{
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +010079 return pdev_is_sata(to_pci_dev(hwif->dev));
Linus Torvalds1da177e2005-04-16 15:20:36 -070080}
81
82/**
83 * siimage_selreg - return register base
84 * @hwif: interface
85 * @r: config offset
86 *
87 * Turn a config register offset into the right address in either
88 * PCI space or MMIO space to access the control register in question
Sergei Shtylyov7b255432008-04-28 23:44:44 +020089 * Thankfully this is a configuration operation, so isn't performance
90 * critical.
Linus Torvalds1da177e2005-04-16 15:20:36 -070091 */
Sergei Shtylyov7b255432008-04-28 23:44:44 +020092
Linus Torvalds1da177e2005-04-16 15:20:36 -070093static unsigned long siimage_selreg(ide_hwif_t *hwif, int r)
94{
95 unsigned long base = (unsigned long)hwif->hwif_data;
Sergei Shtylyov7b255432008-04-28 23:44:44 +020096
Linus Torvalds1da177e2005-04-16 15:20:36 -070097 base += 0xA0 + r;
Bartlomiej Zolnierkiewicz13572142008-07-15 21:21:49 +020098 if (hwif->host_flags & IDE_HFLAG_MMIO)
Sergei Shtylyov7b255432008-04-28 23:44:44 +020099 base += hwif->channel << 6;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700100 else
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200101 base += hwif->channel << 4;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102 return base;
103}
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200104
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105/**
106 * siimage_seldev - return register base
107 * @hwif: interface
108 * @r: config offset
109 *
110 * Turn a config register offset into the right address in either
111 * PCI space or MMIO space to access the control register in question
112 * including accounting for the unit shift.
113 */
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200114
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115static inline unsigned long siimage_seldev(ide_drive_t *drive, int r)
116{
Bartlomiej Zolnierkiewicz898ec222009-01-06 17:20:52 +0100117 ide_hwif_t *hwif = drive->hwif;
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200118 unsigned long base = (unsigned long)hwif->hwif_data;
Bartlomiej Zolnierkiewicz123995b2008-10-13 21:39:40 +0200119 u8 unit = drive->dn & 1;
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200120
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121 base += 0xA0 + r;
Bartlomiej Zolnierkiewicz13572142008-07-15 21:21:49 +0200122 if (hwif->host_flags & IDE_HFLAG_MMIO)
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200123 base += hwif->channel << 6;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124 else
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200125 base += hwif->channel << 4;
Bartlomiej Zolnierkiewicz123995b2008-10-13 21:39:40 +0200126 base |= unit << unit;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127 return base;
128}
129
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200130static u8 sil_ioread8(struct pci_dev *dev, unsigned long addr)
131{
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200132 struct ide_host *host = pci_get_drvdata(dev);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200133 u8 tmp = 0;
134
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200135 if (host->host_priv)
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200136 tmp = readb((void __iomem *)addr);
137 else
138 pci_read_config_byte(dev, addr, &tmp);
139
140 return tmp;
141}
142
143static u16 sil_ioread16(struct pci_dev *dev, unsigned long addr)
144{
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200145 struct ide_host *host = pci_get_drvdata(dev);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200146 u16 tmp = 0;
147
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200148 if (host->host_priv)
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200149 tmp = readw((void __iomem *)addr);
150 else
151 pci_read_config_word(dev, addr, &tmp);
152
153 return tmp;
154}
155
156static void sil_iowrite8(struct pci_dev *dev, u8 val, unsigned long addr)
157{
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200158 struct ide_host *host = pci_get_drvdata(dev);
159
160 if (host->host_priv)
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200161 writeb(val, (void __iomem *)addr);
162 else
163 pci_write_config_byte(dev, addr, val);
164}
165
166static void sil_iowrite16(struct pci_dev *dev, u16 val, unsigned long addr)
167{
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200168 struct ide_host *host = pci_get_drvdata(dev);
169
170 if (host->host_priv)
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200171 writew(val, (void __iomem *)addr);
172 else
173 pci_write_config_word(dev, addr, val);
174}
175
176static void sil_iowrite32(struct pci_dev *dev, u32 val, unsigned long addr)
177{
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200178 struct ide_host *host = pci_get_drvdata(dev);
179
180 if (host->host_priv)
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200181 writel(val, (void __iomem *)addr);
182 else
183 pci_write_config_dword(dev, addr, val);
184}
185
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186/**
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200187 * sil_udma_filter - compute UDMA mask
188 * @drive: IDE device
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189 *
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200190 * Compute the available UDMA speeds for the device on the interface.
191 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192 * For the CMD680 this depends on the clocking mode (scsc), for the
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200193 * SI3112 SATA controller life is a bit simpler.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194 */
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200195
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200196static u8 sil_pata_udma_filter(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197{
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200198 ide_hwif_t *hwif = drive->hwif;
199 struct pci_dev *dev = to_pci_dev(hwif->dev);
200 unsigned long base = (unsigned long)hwif->hwif_data;
201 u8 scsc, mask = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202
Bartlomiej Zolnierkiewicz13572142008-07-15 21:21:49 +0200203 base += (hwif->host_flags & IDE_HFLAG_MMIO) ? 0x4A : 0x8A;
204
205 scsc = sil_ioread8(dev, base);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200207 switch (scsc & 0x30) {
208 case 0x10: /* 133 */
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200209 mask = ATA_UDMA6;
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200210 break;
211 case 0x20: /* 2xPCI */
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200212 mask = ATA_UDMA6;
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200213 break;
214 case 0x00: /* 100 */
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200215 mask = ATA_UDMA5;
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200216 break;
217 default: /* Disabled ? */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218 BUG();
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200219 }
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200220
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200221 return mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222}
223
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200224static u8 sil_sata_udma_filter(ide_drive_t *drive)
225{
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +0200226 char *m = (char *)&drive->id[ATA_ID_PROD];
227
228 return strstr(m, "Maxtor") ? ATA_UDMA5 : ATA_UDMA6;
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200229}
230
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231/**
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +0200232 * sil_set_pio_mode - set host controller for PIO mode
233 * @drive: drive
234 * @pio: PIO mode number
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235 *
236 * Load the timing settings for this device mode into the
237 * controller. If we are in PIO mode 3 or 4 turn on IORDY
238 * monitoring (bit 9). The TF timing is bits 31:16
239 */
Bartlomiej Zolnierkiewicz328dcbb2007-07-20 01:11:54 +0200240
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +0200241static void sil_set_pio_mode(ide_drive_t *drive, u8 pio)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242{
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200243 static const u16 tf_speed[] = { 0x328a, 0x2283, 0x1281, 0x10c3, 0x10c1 };
244 static const u16 data_speed[] = { 0x328a, 0x2283, 0x1104, 0x10c3, 0x10c1 };
Bartlomiej Zolnierkiewicz328dcbb2007-07-20 01:11:54 +0200245
Bartlomiej Zolnierkiewicz898ec222009-01-06 17:20:52 +0100246 ide_hwif_t *hwif = drive->hwif;
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200247 struct pci_dev *dev = to_pci_dev(hwif->dev);
Bartlomiej Zolnierkiewicz7e59ea22008-10-10 22:39:26 +0200248 ide_drive_t *pair = ide_get_pair_dev(drive);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249 u32 speedt = 0;
250 u16 speedp = 0;
251 unsigned long addr = siimage_seldev(drive, 0x04);
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200252 unsigned long tfaddr = siimage_selreg(hwif, 0x02);
Bartlomiej Zolnierkiewiczffe54152007-10-11 23:54:01 +0200253 unsigned long base = (unsigned long)hwif->hwif_data;
Bartlomiej Zolnierkiewicz328dcbb2007-07-20 01:11:54 +0200254 u8 tf_pio = pio;
Bartlomiej Zolnierkiewicz13572142008-07-15 21:21:49 +0200255 u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
256 u8 addr_mask = hwif->channel ? (mmio ? 0xF4 : 0x84)
257 : (mmio ? 0xB4 : 0x80);
Bartlomiej Zolnierkiewiczffe54152007-10-11 23:54:01 +0200258 u8 mode = 0;
Bartlomiej Zolnierkiewicz123995b2008-10-13 21:39:40 +0200259 u8 unit = drive->dn & 1;
Bartlomiej Zolnierkiewicz328dcbb2007-07-20 01:11:54 +0200260
261 /* trim *taskfile* PIO to the slowest of the master/slave */
Bartlomiej Zolnierkiewicz7e59ea22008-10-10 22:39:26 +0200262 if (pair) {
Bartlomiej Zolnierkiewicz21347582007-07-20 01:11:58 +0200263 u8 pair_pio = ide_get_best_pio_mode(pair, 255, 4);
Bartlomiej Zolnierkiewicz328dcbb2007-07-20 01:11:54 +0200264
265 if (pair_pio < tf_pio)
266 tf_pio = pair_pio;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267 }
Sergei Shtylyov075cb652007-02-17 02:40:22 +0100268
Bartlomiej Zolnierkiewicz328dcbb2007-07-20 01:11:54 +0200269 /* cheat for now and use the docs */
270 speedp = data_speed[pio];
271 speedt = tf_speed[tf_pio];
272
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200273 sil_iowrite16(dev, speedp, addr);
274 sil_iowrite16(dev, speedt, tfaddr);
Bartlomiej Zolnierkiewiczffe54152007-10-11 23:54:01 +0200275
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200276 /* now set up IORDY */
277 speedp = sil_ioread16(dev, tfaddr - 2);
278 speedp &= ~0x200;
279 if (pio > 2)
280 speedp |= 0x200;
281 sil_iowrite16(dev, speedp, tfaddr - 2);
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100282
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200283 mode = sil_ioread8(dev, base + addr_mask);
284 mode &= ~(unit ? 0x30 : 0x03);
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200285 mode |= unit ? 0x10 : 0x01;
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200286 sil_iowrite8(dev, mode, base + addr_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287}
288
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289/**
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +0200290 * sil_set_dma_mode - set host controller for DMA mode
291 * @drive: drive
292 * @speed: DMA mode
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293 *
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +0200294 * Tune the SiI chipset for the desired DMA mode.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295 */
Bartlomiej Zolnierkiewiczf212ff22007-10-11 23:53:59 +0200296
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +0200297static void sil_set_dma_mode(ide_drive_t *drive, const u8 speed)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298{
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200299 static const u8 ultra6[] = { 0x0F, 0x0B, 0x07, 0x05, 0x03, 0x02, 0x01 };
300 static const u8 ultra5[] = { 0x0C, 0x07, 0x05, 0x04, 0x02, 0x01 };
301 static const u16 dma[] = { 0x2208, 0x10C2, 0x10C1 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302
Bartlomiej Zolnierkiewicz898ec222009-01-06 17:20:52 +0100303 ide_hwif_t *hwif = drive->hwif;
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100304 struct pci_dev *dev = to_pci_dev(hwif->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305 unsigned long base = (unsigned long)hwif->hwif_data;
Bartlomiej Zolnierkiewicz123995b2008-10-13 21:39:40 +0200306 u16 ultra = 0, multi = 0;
307 u8 mode = 0, unit = drive->dn & 1;
Bartlomiej Zolnierkiewicz13572142008-07-15 21:21:49 +0200308 u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
309 u8 scsc = 0, addr_mask = hwif->channel ? (mmio ? 0xF4 : 0x84)
310 : (mmio ? 0xB4 : 0x80);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311 unsigned long ma = siimage_seldev(drive, 0x08);
312 unsigned long ua = siimage_seldev(drive, 0x0C);
313
Bartlomiej Zolnierkiewicz13572142008-07-15 21:21:49 +0200314 scsc = sil_ioread8 (dev, base + (mmio ? 0x4A : 0x8A));
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200315 mode = sil_ioread8 (dev, base + addr_mask);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200316 multi = sil_ioread16(dev, ma);
317 ultra = sil_ioread16(dev, ua);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200319 mode &= ~(unit ? 0x30 : 0x03);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320 ultra &= ~0x3F;
321 scsc = ((scsc & 0x30) == 0x00) ? 0 : 1;
322
323 scsc = is_sata(hwif) ? 1 : scsc;
324
Bartlomiej Zolnierkiewicz4db90a12008-01-25 22:17:18 +0100325 if (speed >= XFER_UDMA_0) {
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200326 multi = dma[2];
327 ultra |= scsc ? ultra6[speed - XFER_UDMA_0] :
328 ultra5[speed - XFER_UDMA_0];
329 mode |= unit ? 0x30 : 0x03;
Bartlomiej Zolnierkiewicz4db90a12008-01-25 22:17:18 +0100330 } else {
331 multi = dma[speed - XFER_MW_DMA_0];
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200332 mode |= unit ? 0x20 : 0x02;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333 }
334
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200335 sil_iowrite8 (dev, mode, base + addr_mask);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200336 sil_iowrite16(dev, multi, ma);
337 sil_iowrite16(dev, ultra, ua);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338}
339
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340/* returns 1 if dma irq issued, 0 otherwise */
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200341static int siimage_io_dma_test_irq(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342{
Bartlomiej Zolnierkiewicz898ec222009-01-06 17:20:52 +0100343 ide_hwif_t *hwif = drive->hwif;
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100344 struct pci_dev *dev = to_pci_dev(hwif->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345 u8 dma_altstat = 0;
346 unsigned long addr = siimage_selreg(hwif, 1);
347
348 /* return 1 if INTR asserted */
Bartlomiej Zolnierkiewiczcab7f8e2008-07-23 19:55:51 +0200349 if (inb(hwif->dma_base + ATA_DMA_STATUS) & 4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350 return 1;
351
352 /* return 1 if Device INTR asserted */
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100353 pci_read_config_byte(dev, addr, &dma_altstat);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354 if (dma_altstat & 8)
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200355 return 0; /* return 1; */
356
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357 return 0;
358}
359
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360/**
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200361 * siimage_mmio_dma_test_irq - check we caused an IRQ
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362 * @drive: drive we are testing
363 *
364 * Check if we caused an IDE DMA interrupt. We may also have caused
365 * SATA status interrupts, if so we clean them up and continue.
366 */
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200367
368static int siimage_mmio_dma_test_irq(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700369{
Bartlomiej Zolnierkiewicz898ec222009-01-06 17:20:52 +0100370 ide_hwif_t *hwif = drive->hwif;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371 unsigned long addr = siimage_selreg(hwif, 0x1);
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100372 void __iomem *sata_error_addr
373 = (void __iomem *)hwif->sata_scr[SATA_ERROR_OFFSET];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700374
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100375 if (sata_error_addr) {
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200376 unsigned long base = (unsigned long)hwif->hwif_data;
377 u32 ext_stat = readl((void __iomem *)(base + 0x10));
378 u8 watchdog = 0;
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100379
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380 if (ext_stat & ((hwif->channel) ? 0x40 : 0x10)) {
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100381 u32 sata_error = readl(sata_error_addr);
382
383 writel(sata_error, sata_error_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384 watchdog = (sata_error & 0x00680000) ? 1 : 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385 printk(KERN_WARNING "%s: sata_error = 0x%08x, "
386 "watchdog = %d, %s\n",
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200387 drive->name, sata_error, watchdog, __func__);
388 } else
Linus Torvalds1da177e2005-04-16 15:20:36 -0700389 watchdog = (ext_stat & 0x8000) ? 1 : 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200391 ext_stat >>= 16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392 if (!(ext_stat & 0x0404) && !watchdog)
393 return 0;
394 }
395
396 /* return 1 if INTR asserted */
Bartlomiej Zolnierkiewiczcab7f8e2008-07-23 19:55:51 +0200397 if (readb((void __iomem *)(hwif->dma_base + ATA_DMA_STATUS)) & 4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398 return 1;
399
400 /* return 1 if Device INTR asserted */
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200401 if (readb((void __iomem *)addr) & 8)
402 return 0; /* return 1; */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403
404 return 0;
405}
406
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200407static int siimage_dma_test_irq(ide_drive_t *drive)
408{
Bartlomiej Zolnierkiewicz13572142008-07-15 21:21:49 +0200409 if (drive->hwif->host_flags & IDE_HFLAG_MMIO)
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200410 return siimage_mmio_dma_test_irq(drive);
411 else
412 return siimage_io_dma_test_irq(drive);
413}
414
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415/**
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200416 * sil_sata_reset_poll - wait for SATA reset
Linus Torvalds1da177e2005-04-16 15:20:36 -0700417 * @drive: drive we are resetting
418 *
419 * Poll the SATA phy and see whether it has come back from the dead
420 * yet.
421 */
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200422
423static int sil_sata_reset_poll(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424{
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100425 ide_hwif_t *hwif = drive->hwif;
426 void __iomem *sata_status_addr
427 = (void __iomem *)hwif->sata_scr[SATA_STATUS_OFFSET];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700428
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100429 if (sata_status_addr) {
430 /* SATA Status is available only when in MMIO mode */
431 u32 sata_stat = readl(sata_status_addr);
432
433 if ((sata_stat & 0x03) != 0x03) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700434 printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n",
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100435 hwif->name, sata_stat);
Elias Oltmanns64a8f002008-07-16 20:33:48 +0200436 return -ENXIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438 }
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200439
440 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441}
442
443/**
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200444 * sil_sata_pre_reset - reset hook
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445 * @drive: IDE device being reset
446 *
447 * For the SATA devices we need to handle recalibration/geometry
448 * differently
449 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200451static void sil_sata_pre_reset(ide_drive_t *drive)
452{
453 if (drive->media == ide_disk) {
Bartlomiej Zolnierkiewiczca1b96e2009-05-17 19:12:21 +0200454 drive->special_flags &=
455 ~(IDE_SFLAG_SET_GEOMETRY | IDE_SFLAG_RECALIBRATE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700456 }
457}
458
459/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460 * init_chipset_siimage - set up an SI device
461 * @dev: PCI device
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462 *
463 * Perform the initial PCI set up for this device. Attempt to switch
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200464 * to 133 MHz clocking if the system isn't already set up to do it.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700465 */
466
Bartlomiej Zolnierkiewicz2ed0ef52009-03-24 23:22:53 +0100467static int init_chipset_siimage(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700468{
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200469 struct ide_host *host = pci_get_drvdata(dev);
470 void __iomem *ioaddr = host->host_priv;
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200471 unsigned long base, scsc_addr;
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200472 u8 rev = dev->revision, tmp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473
Bartlomiej Zolnierkiewiczfc212bb2007-10-19 00:30:08 +0200474 pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, rev ? 1 : 255);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700475
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200476 if (ioaddr)
477 pci_set_master(dev);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200478
479 base = (unsigned long)ioaddr;
480
481 if (ioaddr && pdev_is_sata(dev)) {
482 u32 tmp32, irq_mask;
483
484 /* make sure IDE0/1 interrupts are not masked */
485 irq_mask = (1 << 22) | (1 << 23);
486 tmp32 = readl(ioaddr + 0x48);
487 if (tmp32 & irq_mask) {
488 tmp32 &= ~irq_mask;
489 writel(tmp32, ioaddr + 0x48);
490 readl(ioaddr + 0x48); /* flush */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491 }
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200492 writel(0, ioaddr + 0x148);
493 writel(0, ioaddr + 0x1C8);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700494 }
495
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200496 sil_iowrite8(dev, 0, base ? (base + 0xB4) : 0x80);
497 sil_iowrite8(dev, 0, base ? (base + 0xF4) : 0x84);
498
499 scsc_addr = base ? (base + 0x4A) : 0x8A;
500 tmp = sil_ioread8(dev, scsc_addr);
501
502 switch (tmp & 0x30) {
503 case 0x00:
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200504 /* On 100 MHz clocking, try and switch to 133 MHz */
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200505 sil_iowrite8(dev, tmp | 0x10, scsc_addr);
506 break;
507 case 0x30:
508 /* Clocking is disabled, attempt to force 133MHz clocking. */
509 sil_iowrite8(dev, tmp & ~0x20, scsc_addr);
510 case 0x10:
511 /* On 133Mhz clocking. */
512 break;
513 case 0x20:
514 /* On PCIx2 clocking. */
515 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516 }
517
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200518 tmp = sil_ioread8(dev, scsc_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700519
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200520 sil_iowrite8 (dev, 0x72, base + 0xA1);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200521 sil_iowrite16(dev, 0x328A, base + 0xA2);
522 sil_iowrite32(dev, 0x62DD62DD, base + 0xA4);
523 sil_iowrite32(dev, 0x43924392, base + 0xA8);
524 sil_iowrite32(dev, 0x40094009, base + 0xAC);
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200525 sil_iowrite8 (dev, 0x72, base ? (base + 0xE1) : 0xB1);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200526 sil_iowrite16(dev, 0x328A, base ? (base + 0xE2) : 0xB2);
527 sil_iowrite32(dev, 0x62DD62DD, base ? (base + 0xE4) : 0xB4);
528 sil_iowrite32(dev, 0x43924392, base ? (base + 0xE8) : 0xB8);
529 sil_iowrite32(dev, 0x40094009, base ? (base + 0xEC) : 0xBC);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700530
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200531 if (base && pdev_is_sata(dev)) {
532 writel(0xFFFF0000, ioaddr + 0x108);
533 writel(0xFFFF0000, ioaddr + 0x188);
534 writel(0x00680000, ioaddr + 0x148);
535 writel(0x00680000, ioaddr + 0x1C8);
536 }
537
Bartlomiej Zolnierkiewicz24cc4342008-04-28 23:44:38 +0200538 /* report the clocking mode of the controller */
539 if (!pdev_is_sata(dev)) {
540 static const char *clk_str[] =
541 { "== 100", "== 133", "== 2X PCI", "DISABLED!" };
542
543 tmp >>= 4;
Bartlomiej Zolnierkiewicza326b022008-07-24 22:53:33 +0200544 printk(KERN_INFO DRV_NAME " %s: BASE CLOCK %s\n",
545 pci_name(dev), clk_str[tmp & 3]);
Bartlomiej Zolnierkiewicz24cc4342008-04-28 23:44:38 +0200546 }
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200547
Linus Torvalds1da177e2005-04-16 15:20:36 -0700548 return 0;
549}
550
551/**
552 * init_mmio_iops_siimage - set up the iops for MMIO
553 * @hwif: interface to set up
554 *
555 * The basic setup here is fairly simple, we can use standard MMIO
556 * operations. However we do have to set the taskfile register offsets
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200557 * by hand as there isn't a standard defined layout for them this time.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700558 *
559 * The hardware supports buffered taskfiles and also some rather nice
Alan Cox19c1ef52006-06-28 04:26:59 -0700560 * extended PRD tables. For better SI3112 support use the libata driver
Linus Torvalds1da177e2005-04-16 15:20:36 -0700561 */
562
563static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif)
564{
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100565 struct pci_dev *dev = to_pci_dev(hwif->dev);
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200566 struct ide_host *host = pci_get_drvdata(dev);
567 void *addr = host->host_priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700568 u8 ch = hwif->channel;
Bartlomiej Zolnierkiewicz4c3032d2008-04-27 15:38:32 +0200569 struct ide_io_ports *io_ports = &hwif->io_ports;
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200570 unsigned long base;
Bartlomiej Zolnierkiewicz4c3032d2008-04-27 15:38:32 +0200571
Linus Torvalds1da177e2005-04-16 15:20:36 -0700572 /*
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200573 * Fill in the basic hwif bits
Linus Torvalds1da177e2005-04-16 15:20:36 -0700574 */
Bartlomiej Zolnierkiewiczc5dd43e2008-04-28 23:44:37 +0200575 hwif->host_flags |= IDE_HFLAG_MMIO;
Bartlomiej Zolnierkiewicz761052e2008-07-23 19:55:54 +0200576
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200577 hwif->hwif_data = addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700578
579 /*
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200580 * Now set up the hw. We have to do this ourselves as the
581 * MMIO layout isn't the same as the standard port based I/O.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700582 */
Bartlomiej Zolnierkiewicz4c3032d2008-04-27 15:38:32 +0200583 memset(io_ports, 0, sizeof(*io_ports));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700584
585 base = (unsigned long)addr;
586 if (ch)
587 base += 0xC0;
588 else
589 base += 0x80;
590
591 /*
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200592 * The buffered task file doesn't have status/control, so we
593 * can't currently use it sanely since we want to use LBA48 mode.
594 */
Bartlomiej Zolnierkiewicz4c3032d2008-04-27 15:38:32 +0200595 io_ports->data_addr = base;
596 io_ports->error_addr = base + 1;
597 io_ports->nsect_addr = base + 2;
598 io_ports->lbal_addr = base + 3;
599 io_ports->lbam_addr = base + 4;
600 io_ports->lbah_addr = base + 5;
601 io_ports->device_addr = base + 6;
602 io_ports->status_addr = base + 7;
603 io_ports->ctl_addr = base + 10;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700604
605 if (pdev_is_sata(dev)) {
606 base = (unsigned long)addr;
607 if (ch)
608 base += 0x80;
609 hwif->sata_scr[SATA_STATUS_OFFSET] = base + 0x104;
610 hwif->sata_scr[SATA_ERROR_OFFSET] = base + 0x108;
611 hwif->sata_scr[SATA_CONTROL_OFFSET] = base + 0x100;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700612 }
613
Bartlomiej Zolnierkiewicz9239b332007-10-20 00:32:33 +0200614 hwif->irq = dev->irq;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615
Bartlomiej Zolnierkiewicz9239b332007-10-20 00:32:33 +0200616 hwif->dma_base = (unsigned long)addr + (ch ? 0x08 : 0x00);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617}
618
619static int is_dev_seagate_sata(ide_drive_t *drive)
620{
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +0200621 const char *s = (const char *)&drive->id[ATA_ID_PROD];
622 unsigned len = strnlen(s, ATA_ID_PROD_LEN);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700623
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200624 if ((len > 4) && (!memcmp(s, "ST", 2)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700625 if ((!memcmp(s + len - 2, "AS", 2)) ||
626 (!memcmp(s + len - 3, "ASL", 3))) {
627 printk(KERN_INFO "%s: applying pessimistic Seagate "
628 "errata fix\n", drive->name);
629 return 1;
630 }
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200631
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632 return 0;
633}
634
635/**
Bartlomiej Zolnierkiewiczf01393e2008-01-26 20:13:03 +0100636 * sil_quirkproc - post probe fixups
637 * @drive: drive
Linus Torvalds1da177e2005-04-16 15:20:36 -0700638 *
639 * Called after drive probe we use this to decide whether the
640 * Seagate fixup must be applied. This used to be in init_iops but
641 * that can occur before we know what drives are present.
642 */
643
Bartlomiej Zolnierkiewicz36de9942008-08-05 18:17:03 +0200644static void sil_quirkproc(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700645{
Bartlomiej Zolnierkiewiczf01393e2008-01-26 20:13:03 +0100646 ide_hwif_t *hwif = drive->hwif;
647
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200648 /* Try and rise the rqsize */
Bartlomiej Zolnierkiewiczf01393e2008-01-26 20:13:03 +0100649 if (!is_sata(hwif) || !is_dev_seagate_sata(drive))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700650 hwif->rqsize = 128;
651}
652
653/**
654 * init_iops_siimage - set up iops
655 * @hwif: interface to set up
656 *
657 * Do the basic setup for the SIIMAGE hardware interface
658 * and then do the MMIO setup if we can. This is the first
659 * look in we get for setting up the hwif so that we
660 * can get the iops right before using them.
661 */
662
663static void __devinit init_iops_siimage(ide_hwif_t *hwif)
664{
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100665 struct pci_dev *dev = to_pci_dev(hwif->dev);
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200666 struct ide_host *host = pci_get_drvdata(dev);
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100667
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668 hwif->hwif_data = NULL;
669
670 /* Pessimal until we finish probing */
671 hwif->rqsize = 15;
672
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200673 if (host->host_priv)
674 init_mmio_iops_siimage(hwif);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700675}
676
677/**
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200678 * sil_cable_detect - cable detection
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679 * @hwif: interface to check
680 *
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200681 * Check for the presence of an ATA66 capable cable on the interface.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700682 */
683
Bartlomiej Zolnierkiewiczf454cbe2008-08-05 18:17:04 +0200684static u8 sil_cable_detect(ide_hwif_t *hwif)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700685{
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200686 struct pci_dev *dev = to_pci_dev(hwif->dev);
687 unsigned long addr = siimage_selreg(hwif, 0);
688 u8 ata66 = sil_ioread8(dev, addr);
Bartlomiej Zolnierkiewicz49521f92007-07-09 23:17:58 +0200689
690 return (ata66 & 0x01) ? ATA_CBL_PATA80 : ATA_CBL_PATA40;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700691}
692
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200693static const struct ide_port_ops sil_pata_port_ops = {
694 .set_pio_mode = sil_set_pio_mode,
695 .set_dma_mode = sil_set_dma_mode,
696 .quirkproc = sil_quirkproc,
697 .udma_filter = sil_pata_udma_filter,
698 .cable_detect = sil_cable_detect,
699};
700
701static const struct ide_port_ops sil_sata_port_ops = {
702 .set_pio_mode = sil_set_pio_mode,
703 .set_dma_mode = sil_set_dma_mode,
704 .reset_poll = sil_sata_reset_poll,
705 .pre_reset = sil_sata_pre_reset,
706 .quirkproc = sil_quirkproc,
707 .udma_filter = sil_sata_udma_filter,
708 .cable_detect = sil_cable_detect,
709};
710
Benjamin Herrenschmidtb26b0c52008-04-29 22:57:37 +0200711static const struct ide_dma_ops sil_dma_ops = {
712 .dma_host_set = ide_dma_host_set,
713 .dma_setup = ide_dma_setup,
Benjamin Herrenschmidtb26b0c52008-04-29 22:57:37 +0200714 .dma_start = ide_dma_start,
Bartlomiej Zolnierkiewicz653bcf52008-10-13 21:39:46 +0200715 .dma_end = ide_dma_end,
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200716 .dma_test_irq = siimage_dma_test_irq,
Bartlomiej Zolnierkiewicz22117d62009-03-27 12:46:47 +0100717 .dma_timer_expiry = ide_dma_sff_timer_expiry,
Benjamin Herrenschmidtb26b0c52008-04-29 22:57:37 +0200718 .dma_lost_irq = ide_dma_lost_irq,
Sergei Shtylyov592b5312009-01-06 17:21:02 +0100719 .dma_sff_read_status = ide_dma_sff_read_status,
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200720};
721
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +0200722#define DECLARE_SII_DEV(p_ops) \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700723 { \
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +0200724 .name = DRV_NAME, \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700725 .init_chipset = init_chipset_siimage, \
726 .init_iops = init_iops_siimage, \
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200727 .port_ops = p_ops, \
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200728 .dma_ops = &sil_dma_ops, \
Bartlomiej Zolnierkiewicz4099d142007-07-20 01:11:59 +0200729 .pio_mask = ATA_PIO4, \
Bartlomiej Zolnierkiewicz5f8b6c32007-10-19 00:30:07 +0200730 .mwdma_mask = ATA_MWDMA2, \
731 .udma_mask = ATA_UDMA6, \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700732 }
733
Bartlomiej Zolnierkiewicz85620432007-10-20 00:32:34 +0200734static const struct ide_port_info siimage_chipsets[] __devinitdata = {
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +0200735 /* 0: SiI680 */ DECLARE_SII_DEV(&sil_pata_port_ops),
736 /* 1: SiI3112 */ DECLARE_SII_DEV(&sil_sata_port_ops)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700737};
738
739/**
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200740 * siimage_init_one - PCI layer discovery entry
Linus Torvalds1da177e2005-04-16 15:20:36 -0700741 * @dev: PCI device
742 * @id: ident table entry
743 *
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200744 * Called by the PCI code when it finds an SiI680 or SiI3112 controller.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700745 * We then use the IDE PCI generic helper to do most of the work.
746 */
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200747
748static int __devinit siimage_init_one(struct pci_dev *dev,
749 const struct pci_device_id *id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700750{
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200751 void __iomem *ioaddr = NULL;
752 resource_size_t bar5 = pci_resource_start(dev, 5);
753 unsigned long barsize = pci_resource_len(dev, 5);
754 int rc;
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200755 struct ide_port_info d;
756 u8 idx = id->driver_data;
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200757 u8 BA5_EN;
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200758
759 d = siimage_chipsets[idx];
760
761 if (idx) {
762 static int first = 1;
763
764 if (first) {
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +0200765 printk(KERN_INFO DRV_NAME ": For full SATA support you "
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200766 "should use the libata sata_sil module.\n");
767 first = 0;
768 }
769
770 d.host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
771 }
772
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200773 rc = pci_enable_device(dev);
774 if (rc)
775 return rc;
776
777 pci_read_config_byte(dev, 0x8A, &BA5_EN);
778 if ((BA5_EN & 0x01) || bar5) {
779 /*
780 * Drop back to PIO if we can't map the MMIO. Some systems
781 * seem to get terminally confused in the PCI spaces.
782 */
783 if (!request_mem_region(bar5, barsize, d.name)) {
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +0200784 printk(KERN_WARNING DRV_NAME " %s: MMIO ports not "
Bartlomiej Zolnierkiewicz28cfd8a2008-07-24 22:53:31 +0200785 "available\n", pci_name(dev));
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200786 } else {
Arjan van de Ven1f1ab272008-10-23 23:22:07 +0200787 ioaddr = pci_ioremap_bar(dev, 5);
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200788 if (ioaddr == NULL)
789 release_mem_region(bar5, barsize);
790 }
791 }
792
793 rc = ide_pci_init_one(dev, &d, ioaddr);
794 if (rc) {
795 if (ioaddr) {
796 iounmap(ioaddr);
797 release_mem_region(bar5, barsize);
798 }
799 pci_disable_device(dev);
800 }
801
802 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700803}
804
Bartlomiej Zolnierkiewiczfe382582008-07-24 22:53:25 +0200805static void __devexit siimage_remove(struct pci_dev *dev)
806{
807 struct ide_host *host = pci_get_drvdata(dev);
808 void __iomem *ioaddr = host->host_priv;
809
810 ide_pci_remove(dev);
811
812 if (ioaddr) {
813 resource_size_t bar5 = pci_resource_start(dev, 5);
814 unsigned long barsize = pci_resource_len(dev, 5);
815
816 iounmap(ioaddr);
817 release_mem_region(bar5, barsize);
818 }
819
820 pci_disable_device(dev);
821}
822
Bartlomiej Zolnierkiewicz9cbcc5e2007-10-16 22:29:56 +0200823static const struct pci_device_id siimage_pci_tbl[] = {
824 { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_680), 0 },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700825#ifdef CONFIG_BLK_DEV_IDE_SATA
Bartlomiej Zolnierkiewicz9cbcc5e2007-10-16 22:29:56 +0200826 { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_3112), 1 },
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +0200827 { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_1210SA), 1 },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700828#endif
829 { 0, },
830};
831MODULE_DEVICE_TABLE(pci, siimage_pci_tbl);
832
Bartlomiej Zolnierkiewicza9ab09e2008-10-13 21:39:41 +0200833static struct pci_driver siimage_pci_driver = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700834 .name = "SiI_IDE",
835 .id_table = siimage_pci_tbl,
836 .probe = siimage_init_one,
Adrian Bunka69999e2008-08-18 21:40:03 +0200837 .remove = __devexit_p(siimage_remove),
Bartlomiej Zolnierkiewiczfeb22b72008-10-10 22:39:32 +0200838 .suspend = ide_pci_suspend,
839 .resume = ide_pci_resume,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700840};
841
Bartlomiej Zolnierkiewicz82ab1ee2007-01-27 13:46:56 +0100842static int __init siimage_ide_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700843{
Bartlomiej Zolnierkiewicza9ab09e2008-10-13 21:39:41 +0200844 return ide_pci_register_driver(&siimage_pci_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700845}
846
Bartlomiej Zolnierkiewiczfe382582008-07-24 22:53:25 +0200847static void __exit siimage_ide_exit(void)
848{
Bartlomiej Zolnierkiewicza9ab09e2008-10-13 21:39:41 +0200849 pci_unregister_driver(&siimage_pci_driver);
Bartlomiej Zolnierkiewiczfe382582008-07-24 22:53:25 +0200850}
851
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852module_init(siimage_ide_init);
Bartlomiej Zolnierkiewiczfe382582008-07-24 22:53:25 +0200853module_exit(siimage_ide_exit);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700854
855MODULE_AUTHOR("Andre Hedrick, Alan Cox");
856MODULE_DESCRIPTION("PCI driver module for SiI IDE");
857MODULE_LICENSE("GPL");