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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
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +020047#define DRV_NAME "siimage"
48
Linus Torvalds1da177e2005-04-16 15:20:36 -070049/**
50 * pdev_is_sata - check if device is SATA
51 * @pdev: PCI device to check
Sergei Shtylyov7b255432008-04-28 23:44:44 +020052 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070053 * Returns true if this is a SATA controller
54 */
Sergei Shtylyov7b255432008-04-28 23:44:44 +020055
Linus Torvalds1da177e2005-04-16 15:20:36 -070056static int pdev_is_sata(struct pci_dev *pdev)
57{
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +020058#ifdef CONFIG_BLK_DEV_IDE_SATA
Sergei Shtylyov7b255432008-04-28 23:44:44 +020059 switch (pdev->device) {
60 case PCI_DEVICE_ID_SII_3112:
61 case PCI_DEVICE_ID_SII_1210SA:
62 return 1;
63 case PCI_DEVICE_ID_SII_680:
64 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -070065 }
66 BUG();
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +020067#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070068 return 0;
69}
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +020070
Linus Torvalds1da177e2005-04-16 15:20:36 -070071/**
72 * is_sata - check if hwif is SATA
73 * @hwif: interface to check
Sergei Shtylyov7b255432008-04-28 23:44:44 +020074 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070075 * Returns true if this is a SATA controller
76 */
Sergei Shtylyov7b255432008-04-28 23:44:44 +020077
Linus Torvalds1da177e2005-04-16 15:20:36 -070078static inline int is_sata(ide_hwif_t *hwif)
79{
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +010080 return pdev_is_sata(to_pci_dev(hwif->dev));
Linus Torvalds1da177e2005-04-16 15:20:36 -070081}
82
83/**
84 * siimage_selreg - return register base
85 * @hwif: interface
86 * @r: config offset
87 *
88 * Turn a config register offset into the right address in either
89 * PCI space or MMIO space to access the control register in question
Sergei Shtylyov7b255432008-04-28 23:44:44 +020090 * Thankfully this is a configuration operation, so isn't performance
91 * critical.
Linus Torvalds1da177e2005-04-16 15:20:36 -070092 */
Sergei Shtylyov7b255432008-04-28 23:44:44 +020093
Linus Torvalds1da177e2005-04-16 15:20:36 -070094static unsigned long siimage_selreg(ide_hwif_t *hwif, int r)
95{
96 unsigned long base = (unsigned long)hwif->hwif_data;
Sergei Shtylyov7b255432008-04-28 23:44:44 +020097
Linus Torvalds1da177e2005-04-16 15:20:36 -070098 base += 0xA0 + r;
Bartlomiej Zolnierkiewicz13572142008-07-15 21:21:49 +020099 if (hwif->host_flags & IDE_HFLAG_MMIO)
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200100 base += hwif->channel << 6;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101 else
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200102 base += hwif->channel << 4;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103 return base;
104}
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200105
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106/**
107 * siimage_seldev - return register base
108 * @hwif: interface
109 * @r: config offset
110 *
111 * Turn a config register offset into the right address in either
112 * PCI space or MMIO space to access the control register in question
113 * including accounting for the unit shift.
114 */
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200115
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116static inline unsigned long siimage_seldev(ide_drive_t *drive, int r)
117{
118 ide_hwif_t *hwif = HWIF(drive);
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200119 unsigned long base = (unsigned long)hwif->hwif_data;
120
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;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126 base |= drive->select.b.unit << drive->select.b.unit;
127 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{
226 return strstr(drive->id->model, "Maxtor") ? ATA_UDMA5 : ATA_UDMA6;
227}
228
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229/**
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +0200230 * sil_set_pio_mode - set host controller for PIO mode
231 * @drive: drive
232 * @pio: PIO mode number
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233 *
234 * Load the timing settings for this device mode into the
235 * controller. If we are in PIO mode 3 or 4 turn on IORDY
236 * monitoring (bit 9). The TF timing is bits 31:16
237 */
Bartlomiej Zolnierkiewicz328dcbb2007-07-20 01:11:54 +0200238
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +0200239static void sil_set_pio_mode(ide_drive_t *drive, u8 pio)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240{
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200241 static const u16 tf_speed[] = { 0x328a, 0x2283, 0x1281, 0x10c3, 0x10c1 };
242 static const u16 data_speed[] = { 0x328a, 0x2283, 0x1104, 0x10c3, 0x10c1 };
Bartlomiej Zolnierkiewicz328dcbb2007-07-20 01:11:54 +0200243
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244 ide_hwif_t *hwif = HWIF(drive);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200245 struct pci_dev *dev = to_pci_dev(hwif->dev);
Benjamin Herrenschmidta87a87c2007-10-19 00:30:05 +0200246 ide_drive_t *pair = ide_get_paired_drive(drive);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247 u32 speedt = 0;
248 u16 speedp = 0;
249 unsigned long addr = siimage_seldev(drive, 0x04);
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200250 unsigned long tfaddr = siimage_selreg(hwif, 0x02);
Bartlomiej Zolnierkiewiczffe54152007-10-11 23:54:01 +0200251 unsigned long base = (unsigned long)hwif->hwif_data;
Bartlomiej Zolnierkiewicz328dcbb2007-07-20 01:11:54 +0200252 u8 tf_pio = pio;
Bartlomiej Zolnierkiewicz13572142008-07-15 21:21:49 +0200253 u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
254 u8 addr_mask = hwif->channel ? (mmio ? 0xF4 : 0x84)
255 : (mmio ? 0xB4 : 0x80);
Bartlomiej Zolnierkiewiczffe54152007-10-11 23:54:01 +0200256 u8 mode = 0;
257 u8 unit = drive->select.b.unit;
Bartlomiej Zolnierkiewicz328dcbb2007-07-20 01:11:54 +0200258
259 /* trim *taskfile* PIO to the slowest of the master/slave */
260 if (pair->present) {
Bartlomiej Zolnierkiewicz21347582007-07-20 01:11:58 +0200261 u8 pair_pio = ide_get_best_pio_mode(pair, 255, 4);
Bartlomiej Zolnierkiewicz328dcbb2007-07-20 01:11:54 +0200262
263 if (pair_pio < tf_pio)
264 tf_pio = pair_pio;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265 }
Sergei Shtylyov075cb652007-02-17 02:40:22 +0100266
Bartlomiej Zolnierkiewicz328dcbb2007-07-20 01:11:54 +0200267 /* cheat for now and use the docs */
268 speedp = data_speed[pio];
269 speedt = tf_speed[tf_pio];
270
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200271 sil_iowrite16(dev, speedp, addr);
272 sil_iowrite16(dev, speedt, tfaddr);
Bartlomiej Zolnierkiewiczffe54152007-10-11 23:54:01 +0200273
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200274 /* now set up IORDY */
275 speedp = sil_ioread16(dev, tfaddr - 2);
276 speedp &= ~0x200;
277 if (pio > 2)
278 speedp |= 0x200;
279 sil_iowrite16(dev, speedp, tfaddr - 2);
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100280
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200281 mode = sil_ioread8(dev, base + addr_mask);
282 mode &= ~(unit ? 0x30 : 0x03);
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200283 mode |= unit ? 0x10 : 0x01;
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200284 sil_iowrite8(dev, mode, base + addr_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285}
286
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287/**
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +0200288 * sil_set_dma_mode - set host controller for DMA mode
289 * @drive: drive
290 * @speed: DMA mode
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291 *
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +0200292 * Tune the SiI chipset for the desired DMA mode.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293 */
Bartlomiej Zolnierkiewiczf212ff22007-10-11 23:53:59 +0200294
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +0200295static void sil_set_dma_mode(ide_drive_t *drive, const u8 speed)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296{
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200297 static const u8 ultra6[] = { 0x0F, 0x0B, 0x07, 0x05, 0x03, 0x02, 0x01 };
298 static const u8 ultra5[] = { 0x0C, 0x07, 0x05, 0x04, 0x02, 0x01 };
299 static const u16 dma[] = { 0x2208, 0x10C2, 0x10C1 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300
301 ide_hwif_t *hwif = HWIF(drive);
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100302 struct pci_dev *dev = to_pci_dev(hwif->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303 u16 ultra = 0, multi = 0;
304 u8 mode = 0, unit = drive->select.b.unit;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305 unsigned long base = (unsigned long)hwif->hwif_data;
Bartlomiej Zolnierkiewicz13572142008-07-15 21:21:49 +0200306 u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
307 u8 scsc = 0, addr_mask = hwif->channel ? (mmio ? 0xF4 : 0x84)
308 : (mmio ? 0xB4 : 0x80);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309 unsigned long ma = siimage_seldev(drive, 0x08);
310 unsigned long ua = siimage_seldev(drive, 0x0C);
311
Bartlomiej Zolnierkiewicz13572142008-07-15 21:21:49 +0200312 scsc = sil_ioread8 (dev, base + (mmio ? 0x4A : 0x8A));
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200313 mode = sil_ioread8 (dev, base + addr_mask);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200314 multi = sil_ioread16(dev, ma);
315 ultra = sil_ioread16(dev, ua);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200317 mode &= ~(unit ? 0x30 : 0x03);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 ultra &= ~0x3F;
319 scsc = ((scsc & 0x30) == 0x00) ? 0 : 1;
320
321 scsc = is_sata(hwif) ? 1 : scsc;
322
Bartlomiej Zolnierkiewicz4db90a12008-01-25 22:17:18 +0100323 if (speed >= XFER_UDMA_0) {
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200324 multi = dma[2];
325 ultra |= scsc ? ultra6[speed - XFER_UDMA_0] :
326 ultra5[speed - XFER_UDMA_0];
327 mode |= unit ? 0x30 : 0x03;
Bartlomiej Zolnierkiewicz4db90a12008-01-25 22:17:18 +0100328 } else {
329 multi = dma[speed - XFER_MW_DMA_0];
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200330 mode |= unit ? 0x20 : 0x02;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331 }
332
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200333 sil_iowrite8 (dev, mode, base + addr_mask);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200334 sil_iowrite16(dev, multi, ma);
335 sil_iowrite16(dev, ultra, ua);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336}
337
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338/* returns 1 if dma irq issued, 0 otherwise */
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200339static int siimage_io_dma_test_irq(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340{
341 ide_hwif_t *hwif = HWIF(drive);
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100342 struct pci_dev *dev = to_pci_dev(hwif->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700343 u8 dma_altstat = 0;
344 unsigned long addr = siimage_selreg(hwif, 1);
345
346 /* return 1 if INTR asserted */
Bartlomiej Zolnierkiewiczcab7f8e2008-07-23 19:55:51 +0200347 if (inb(hwif->dma_base + ATA_DMA_STATUS) & 4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348 return 1;
349
350 /* return 1 if Device INTR asserted */
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100351 pci_read_config_byte(dev, addr, &dma_altstat);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352 if (dma_altstat & 8)
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200353 return 0; /* return 1; */
354
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355 return 0;
356}
357
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358/**
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200359 * siimage_mmio_dma_test_irq - check we caused an IRQ
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360 * @drive: drive we are testing
361 *
362 * Check if we caused an IDE DMA interrupt. We may also have caused
363 * SATA status interrupts, if so we clean them up and continue.
364 */
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200365
366static int siimage_mmio_dma_test_irq(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367{
368 ide_hwif_t *hwif = HWIF(drive);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700369 unsigned long addr = siimage_selreg(hwif, 0x1);
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100370 void __iomem *sata_error_addr
371 = (void __iomem *)hwif->sata_scr[SATA_ERROR_OFFSET];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100373 if (sata_error_addr) {
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200374 unsigned long base = (unsigned long)hwif->hwif_data;
375 u32 ext_stat = readl((void __iomem *)(base + 0x10));
376 u8 watchdog = 0;
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100377
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378 if (ext_stat & ((hwif->channel) ? 0x40 : 0x10)) {
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100379 u32 sata_error = readl(sata_error_addr);
380
381 writel(sata_error, sata_error_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382 watchdog = (sata_error & 0x00680000) ? 1 : 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700383 printk(KERN_WARNING "%s: sata_error = 0x%08x, "
384 "watchdog = %d, %s\n",
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200385 drive->name, sata_error, watchdog, __func__);
386 } else
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387 watchdog = (ext_stat & 0x8000) ? 1 : 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700388
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200389 ext_stat >>= 16;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390 if (!(ext_stat & 0x0404) && !watchdog)
391 return 0;
392 }
393
394 /* return 1 if INTR asserted */
Bartlomiej Zolnierkiewiczcab7f8e2008-07-23 19:55:51 +0200395 if (readb((void __iomem *)(hwif->dma_base + ATA_DMA_STATUS)) & 4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396 return 1;
397
398 /* return 1 if Device INTR asserted */
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200399 if (readb((void __iomem *)addr) & 8)
400 return 0; /* return 1; */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401
402 return 0;
403}
404
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200405static int siimage_dma_test_irq(ide_drive_t *drive)
406{
Bartlomiej Zolnierkiewicz13572142008-07-15 21:21:49 +0200407 if (drive->hwif->host_flags & IDE_HFLAG_MMIO)
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200408 return siimage_mmio_dma_test_irq(drive);
409 else
410 return siimage_io_dma_test_irq(drive);
411}
412
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413/**
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200414 * sil_sata_reset_poll - wait for SATA reset
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415 * @drive: drive we are resetting
416 *
417 * Poll the SATA phy and see whether it has come back from the dead
418 * yet.
419 */
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200420
421static int sil_sata_reset_poll(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422{
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100423 ide_hwif_t *hwif = drive->hwif;
424 void __iomem *sata_status_addr
425 = (void __iomem *)hwif->sata_scr[SATA_STATUS_OFFSET];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100427 if (sata_status_addr) {
428 /* SATA Status is available only when in MMIO mode */
429 u32 sata_stat = readl(sata_status_addr);
430
431 if ((sata_stat & 0x03) != 0x03) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432 printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n",
Bartlomiej Zolnierkiewicz835457d2008-02-02 19:56:45 +0100433 hwif->name, sata_stat);
Elias Oltmanns64a8f002008-07-16 20:33:48 +0200434 return -ENXIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436 }
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200437
438 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700439}
440
441/**
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200442 * sil_sata_pre_reset - reset hook
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443 * @drive: IDE device being reset
444 *
445 * For the SATA devices we need to handle recalibration/geometry
446 * differently
447 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448
Bartlomiej Zolnierkiewicz438c4702007-10-20 00:32:31 +0200449static void sil_sata_pre_reset(ide_drive_t *drive)
450{
451 if (drive->media == ide_disk) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452 drive->special.b.set_geometry = 0;
453 drive->special.b.recalibrate = 0;
454 }
455}
456
457/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458 * init_chipset_siimage - set up an SI device
459 * @dev: PCI device
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460 *
461 * Perform the initial PCI set up for this device. Attempt to switch
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200462 * to 133 MHz clocking if the system isn't already set up to do it.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700463 */
464
Bartlomiej Zolnierkiewicza326b022008-07-24 22:53:33 +0200465static unsigned int __devinit init_chipset_siimage(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700466{
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200467 struct ide_host *host = pci_get_drvdata(dev);
468 void __iomem *ioaddr = host->host_priv;
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200469 unsigned long base, scsc_addr;
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200470 u8 rev = dev->revision, tmp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471
Bartlomiej Zolnierkiewiczfc212bb2007-10-19 00:30:08 +0200472 pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, rev ? 1 : 255);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200474 if (ioaddr)
475 pci_set_master(dev);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200476
477 base = (unsigned long)ioaddr;
478
479 if (ioaddr && pdev_is_sata(dev)) {
480 u32 tmp32, irq_mask;
481
482 /* make sure IDE0/1 interrupts are not masked */
483 irq_mask = (1 << 22) | (1 << 23);
484 tmp32 = readl(ioaddr + 0x48);
485 if (tmp32 & irq_mask) {
486 tmp32 &= ~irq_mask;
487 writel(tmp32, ioaddr + 0x48);
488 readl(ioaddr + 0x48); /* flush */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700489 }
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200490 writel(0, ioaddr + 0x148);
491 writel(0, ioaddr + 0x1C8);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492 }
493
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200494 sil_iowrite8(dev, 0, base ? (base + 0xB4) : 0x80);
495 sil_iowrite8(dev, 0, base ? (base + 0xF4) : 0x84);
496
497 scsc_addr = base ? (base + 0x4A) : 0x8A;
498 tmp = sil_ioread8(dev, scsc_addr);
499
500 switch (tmp & 0x30) {
501 case 0x00:
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200502 /* On 100 MHz clocking, try and switch to 133 MHz */
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200503 sil_iowrite8(dev, tmp | 0x10, scsc_addr);
504 break;
505 case 0x30:
506 /* Clocking is disabled, attempt to force 133MHz clocking. */
507 sil_iowrite8(dev, tmp & ~0x20, scsc_addr);
508 case 0x10:
509 /* On 133Mhz clocking. */
510 break;
511 case 0x20:
512 /* On PCIx2 clocking. */
513 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700514 }
515
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200516 tmp = sil_ioread8(dev, scsc_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700517
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200518 sil_iowrite8 (dev, 0x72, base + 0xA1);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200519 sil_iowrite16(dev, 0x328A, base + 0xA2);
520 sil_iowrite32(dev, 0x62DD62DD, base + 0xA4);
521 sil_iowrite32(dev, 0x43924392, base + 0xA8);
522 sil_iowrite32(dev, 0x40094009, base + 0xAC);
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200523 sil_iowrite8 (dev, 0x72, base ? (base + 0xE1) : 0xB1);
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200524 sil_iowrite16(dev, 0x328A, base ? (base + 0xE2) : 0xB2);
525 sil_iowrite32(dev, 0x62DD62DD, base ? (base + 0xE4) : 0xB4);
526 sil_iowrite32(dev, 0x43924392, base ? (base + 0xE8) : 0xB8);
527 sil_iowrite32(dev, 0x40094009, base ? (base + 0xEC) : 0xBC);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700528
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200529 if (base && pdev_is_sata(dev)) {
530 writel(0xFFFF0000, ioaddr + 0x108);
531 writel(0xFFFF0000, ioaddr + 0x188);
532 writel(0x00680000, ioaddr + 0x148);
533 writel(0x00680000, ioaddr + 0x1C8);
534 }
535
Bartlomiej Zolnierkiewicz24cc4342008-04-28 23:44:38 +0200536 /* report the clocking mode of the controller */
537 if (!pdev_is_sata(dev)) {
538 static const char *clk_str[] =
539 { "== 100", "== 133", "== 2X PCI", "DISABLED!" };
540
541 tmp >>= 4;
Bartlomiej Zolnierkiewicza326b022008-07-24 22:53:33 +0200542 printk(KERN_INFO DRV_NAME " %s: BASE CLOCK %s\n",
543 pci_name(dev), clk_str[tmp & 3]);
Bartlomiej Zolnierkiewicz24cc4342008-04-28 23:44:38 +0200544 }
Bartlomiej Zolnierkiewicz165701d2008-04-28 23:44:38 +0200545
Linus Torvalds1da177e2005-04-16 15:20:36 -0700546 return 0;
547}
548
549/**
550 * init_mmio_iops_siimage - set up the iops for MMIO
551 * @hwif: interface to set up
552 *
553 * The basic setup here is fairly simple, we can use standard MMIO
554 * operations. However we do have to set the taskfile register offsets
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200555 * by hand as there isn't a standard defined layout for them this time.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700556 *
557 * The hardware supports buffered taskfiles and also some rather nice
Alan Cox19c1ef52006-06-28 04:26:59 -0700558 * extended PRD tables. For better SI3112 support use the libata driver
Linus Torvalds1da177e2005-04-16 15:20:36 -0700559 */
560
561static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif)
562{
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100563 struct pci_dev *dev = to_pci_dev(hwif->dev);
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200564 struct ide_host *host = pci_get_drvdata(dev);
565 void *addr = host->host_priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700566 u8 ch = hwif->channel;
Bartlomiej Zolnierkiewicz4c3032d2008-04-27 15:38:32 +0200567 struct ide_io_ports *io_ports = &hwif->io_ports;
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200568 unsigned long base;
Bartlomiej Zolnierkiewicz4c3032d2008-04-27 15:38:32 +0200569
Linus Torvalds1da177e2005-04-16 15:20:36 -0700570 /*
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200571 * Fill in the basic hwif bits
Linus Torvalds1da177e2005-04-16 15:20:36 -0700572 */
Bartlomiej Zolnierkiewiczc5dd43e2008-04-28 23:44:37 +0200573 hwif->host_flags |= IDE_HFLAG_MMIO;
Bartlomiej Zolnierkiewicz761052e2008-07-23 19:55:54 +0200574
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200575 hwif->hwif_data = addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700576
577 /*
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200578 * Now set up the hw. We have to do this ourselves as the
579 * MMIO layout isn't the same as the standard port based I/O.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700580 */
Bartlomiej Zolnierkiewicz4c3032d2008-04-27 15:38:32 +0200581 memset(io_ports, 0, sizeof(*io_ports));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700582
583 base = (unsigned long)addr;
584 if (ch)
585 base += 0xC0;
586 else
587 base += 0x80;
588
589 /*
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200590 * The buffered task file doesn't have status/control, so we
591 * can't currently use it sanely since we want to use LBA48 mode.
592 */
Bartlomiej Zolnierkiewicz4c3032d2008-04-27 15:38:32 +0200593 io_ports->data_addr = base;
594 io_ports->error_addr = base + 1;
595 io_ports->nsect_addr = base + 2;
596 io_ports->lbal_addr = base + 3;
597 io_ports->lbam_addr = base + 4;
598 io_ports->lbah_addr = base + 5;
599 io_ports->device_addr = base + 6;
600 io_ports->status_addr = base + 7;
601 io_ports->ctl_addr = base + 10;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700602
603 if (pdev_is_sata(dev)) {
604 base = (unsigned long)addr;
605 if (ch)
606 base += 0x80;
607 hwif->sata_scr[SATA_STATUS_OFFSET] = base + 0x104;
608 hwif->sata_scr[SATA_ERROR_OFFSET] = base + 0x108;
609 hwif->sata_scr[SATA_CONTROL_OFFSET] = base + 0x100;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700610 }
611
Bartlomiej Zolnierkiewicz9239b332007-10-20 00:32:33 +0200612 hwif->irq = dev->irq;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700613
Bartlomiej Zolnierkiewicz9239b332007-10-20 00:32:33 +0200614 hwif->dma_base = (unsigned long)addr + (ch ? 0x08 : 0x00);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615}
616
617static int is_dev_seagate_sata(ide_drive_t *drive)
618{
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200619 const char *s = &drive->id->model[0];
620 unsigned len = strnlen(s, sizeof(drive->id->model));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200622 if ((len > 4) && (!memcmp(s, "ST", 2)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700623 if ((!memcmp(s + len - 2, "AS", 2)) ||
624 (!memcmp(s + len - 3, "ASL", 3))) {
625 printk(KERN_INFO "%s: applying pessimistic Seagate "
626 "errata fix\n", drive->name);
627 return 1;
628 }
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200629
Linus Torvalds1da177e2005-04-16 15:20:36 -0700630 return 0;
631}
632
633/**
Bartlomiej Zolnierkiewiczf01393e2008-01-26 20:13:03 +0100634 * sil_quirkproc - post probe fixups
635 * @drive: drive
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636 *
637 * Called after drive probe we use this to decide whether the
638 * Seagate fixup must be applied. This used to be in init_iops but
639 * that can occur before we know what drives are present.
640 */
641
Bartlomiej Zolnierkiewicz36de9942008-08-05 18:17:03 +0200642static void sil_quirkproc(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700643{
Bartlomiej Zolnierkiewiczf01393e2008-01-26 20:13:03 +0100644 ide_hwif_t *hwif = drive->hwif;
645
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200646 /* Try and rise the rqsize */
Bartlomiej Zolnierkiewiczf01393e2008-01-26 20:13:03 +0100647 if (!is_sata(hwif) || !is_dev_seagate_sata(drive))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648 hwif->rqsize = 128;
649}
650
651/**
652 * init_iops_siimage - set up iops
653 * @hwif: interface to set up
654 *
655 * Do the basic setup for the SIIMAGE hardware interface
656 * and then do the MMIO setup if we can. This is the first
657 * look in we get for setting up the hwif so that we
658 * can get the iops right before using them.
659 */
660
661static void __devinit init_iops_siimage(ide_hwif_t *hwif)
662{
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100663 struct pci_dev *dev = to_pci_dev(hwif->dev);
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200664 struct ide_host *host = pci_get_drvdata(dev);
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100665
Linus Torvalds1da177e2005-04-16 15:20:36 -0700666 hwif->hwif_data = NULL;
667
668 /* Pessimal until we finish probing */
669 hwif->rqsize = 15;
670
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200671 if (host->host_priv)
672 init_mmio_iops_siimage(hwif);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673}
674
675/**
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200676 * sil_cable_detect - cable detection
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677 * @hwif: interface to check
678 *
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200679 * Check for the presence of an ATA66 capable cable on the interface.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680 */
681
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200682static u8 __devinit sil_cable_detect(ide_hwif_t *hwif)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700683{
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200684 struct pci_dev *dev = to_pci_dev(hwif->dev);
685 unsigned long addr = siimage_selreg(hwif, 0);
686 u8 ata66 = sil_ioread8(dev, addr);
Bartlomiej Zolnierkiewicz49521f92007-07-09 23:17:58 +0200687
688 return (ata66 & 0x01) ? ATA_CBL_PATA80 : ATA_CBL_PATA40;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700689}
690
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200691static const struct ide_port_ops sil_pata_port_ops = {
692 .set_pio_mode = sil_set_pio_mode,
693 .set_dma_mode = sil_set_dma_mode,
694 .quirkproc = sil_quirkproc,
695 .udma_filter = sil_pata_udma_filter,
696 .cable_detect = sil_cable_detect,
697};
698
699static const struct ide_port_ops sil_sata_port_ops = {
700 .set_pio_mode = sil_set_pio_mode,
701 .set_dma_mode = sil_set_dma_mode,
702 .reset_poll = sil_sata_reset_poll,
703 .pre_reset = sil_sata_pre_reset,
704 .quirkproc = sil_quirkproc,
705 .udma_filter = sil_sata_udma_filter,
706 .cable_detect = sil_cable_detect,
707};
708
Benjamin Herrenschmidtb26b0c52008-04-29 22:57:37 +0200709static const struct ide_dma_ops sil_dma_ops = {
710 .dma_host_set = ide_dma_host_set,
711 .dma_setup = ide_dma_setup,
712 .dma_exec_cmd = ide_dma_exec_cmd,
713 .dma_start = ide_dma_start,
714 .dma_end = __ide_dma_end,
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200715 .dma_test_irq = siimage_dma_test_irq,
Benjamin Herrenschmidtb26b0c52008-04-29 22:57:37 +0200716 .dma_timeout = ide_dma_timeout,
717 .dma_lost_irq = ide_dma_lost_irq,
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200718};
719
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +0200720#define DECLARE_SII_DEV(p_ops) \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700721 { \
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +0200722 .name = DRV_NAME, \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700723 .init_chipset = init_chipset_siimage, \
724 .init_iops = init_iops_siimage, \
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200725 .port_ops = p_ops, \
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200726 .dma_ops = &sil_dma_ops, \
Bartlomiej Zolnierkiewicz4099d142007-07-20 01:11:59 +0200727 .pio_mask = ATA_PIO4, \
Bartlomiej Zolnierkiewicz5f8b6c32007-10-19 00:30:07 +0200728 .mwdma_mask = ATA_MWDMA2, \
729 .udma_mask = ATA_UDMA6, \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700730 }
731
Bartlomiej Zolnierkiewicz85620432007-10-20 00:32:34 +0200732static const struct ide_port_info siimage_chipsets[] __devinitdata = {
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +0200733 /* 0: SiI680 */ DECLARE_SII_DEV(&sil_pata_port_ops),
734 /* 1: SiI3112 */ DECLARE_SII_DEV(&sil_sata_port_ops)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735};
736
737/**
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200738 * siimage_init_one - PCI layer discovery entry
Linus Torvalds1da177e2005-04-16 15:20:36 -0700739 * @dev: PCI device
740 * @id: ident table entry
741 *
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200742 * Called by the PCI code when it finds an SiI680 or SiI3112 controller.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743 * We then use the IDE PCI generic helper to do most of the work.
744 */
Sergei Shtylyov7b255432008-04-28 23:44:44 +0200745
746static int __devinit siimage_init_one(struct pci_dev *dev,
747 const struct pci_device_id *id)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700748{
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200749 void __iomem *ioaddr = NULL;
750 resource_size_t bar5 = pci_resource_start(dev, 5);
751 unsigned long barsize = pci_resource_len(dev, 5);
752 int rc;
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200753 struct ide_port_info d;
754 u8 idx = id->driver_data;
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200755 u8 BA5_EN;
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200756
757 d = siimage_chipsets[idx];
758
759 if (idx) {
760 static int first = 1;
761
762 if (first) {
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +0200763 printk(KERN_INFO DRV_NAME ": For full SATA support you "
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200764 "should use the libata sata_sil module.\n");
765 first = 0;
766 }
767
768 d.host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
769 }
770
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200771 rc = pci_enable_device(dev);
772 if (rc)
773 return rc;
774
775 pci_read_config_byte(dev, 0x8A, &BA5_EN);
776 if ((BA5_EN & 0x01) || bar5) {
777 /*
778 * Drop back to PIO if we can't map the MMIO. Some systems
779 * seem to get terminally confused in the PCI spaces.
780 */
781 if (!request_mem_region(bar5, barsize, d.name)) {
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +0200782 printk(KERN_WARNING DRV_NAME " %s: MMIO ports not "
Bartlomiej Zolnierkiewicz28cfd8a2008-07-24 22:53:31 +0200783 "available\n", pci_name(dev));
Bartlomiej Zolnierkiewicz4c674232008-07-24 22:53:16 +0200784 } else {
785 ioaddr = ioremap(bar5, barsize);
786 if (ioaddr == NULL)
787 release_mem_region(bar5, barsize);
788 }
789 }
790
791 rc = ide_pci_init_one(dev, &d, ioaddr);
792 if (rc) {
793 if (ioaddr) {
794 iounmap(ioaddr);
795 release_mem_region(bar5, barsize);
796 }
797 pci_disable_device(dev);
798 }
799
800 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700801}
802
Bartlomiej Zolnierkiewiczfe382582008-07-24 22:53:25 +0200803static void __devexit siimage_remove(struct pci_dev *dev)
804{
805 struct ide_host *host = pci_get_drvdata(dev);
806 void __iomem *ioaddr = host->host_priv;
807
808 ide_pci_remove(dev);
809
810 if (ioaddr) {
811 resource_size_t bar5 = pci_resource_start(dev, 5);
812 unsigned long barsize = pci_resource_len(dev, 5);
813
814 iounmap(ioaddr);
815 release_mem_region(bar5, barsize);
816 }
817
818 pci_disable_device(dev);
819}
820
Bartlomiej Zolnierkiewicz9cbcc5e2007-10-16 22:29:56 +0200821static const struct pci_device_id siimage_pci_tbl[] = {
822 { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_680), 0 },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700823#ifdef CONFIG_BLK_DEV_IDE_SATA
Bartlomiej Zolnierkiewicz9cbcc5e2007-10-16 22:29:56 +0200824 { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_3112), 1 },
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +0200825 { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_1210SA), 1 },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700826#endif
827 { 0, },
828};
829MODULE_DEVICE_TABLE(pci, siimage_pci_tbl);
830
831static struct pci_driver driver = {
832 .name = "SiI_IDE",
833 .id_table = siimage_pci_tbl,
834 .probe = siimage_init_one,
Bartlomiej Zolnierkiewiczfe382582008-07-24 22:53:25 +0200835 .remove = siimage_remove,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700836};
837
Bartlomiej Zolnierkiewicz82ab1ee2007-01-27 13:46:56 +0100838static int __init siimage_ide_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700839{
840 return ide_pci_register_driver(&driver);
841}
842
Bartlomiej Zolnierkiewiczfe382582008-07-24 22:53:25 +0200843static void __exit siimage_ide_exit(void)
844{
845 pci_unregister_driver(&driver);
846}
847
Linus Torvalds1da177e2005-04-16 15:20:36 -0700848module_init(siimage_ide_init);
Bartlomiej Zolnierkiewiczfe382582008-07-24 22:53:25 +0200849module_exit(siimage_ide_exit);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700850
851MODULE_AUTHOR("Andre Hedrick, Alan Cox");
852MODULE_DESCRIPTION("PCI driver module for SiI IDE");
853MODULE_LICENSE("GPL");