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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * Copyright (C) 1998-2000 Michel Aubry
3 * Copyright (C) 1998-2000 Andrzej Krzysztofowicz
4 * Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org>
Bartlomiej Zolnierkiewicze7593af2010-01-18 07:19:22 +00005 * Copyright (C) 2007-2010 Bartlomiej Zolnierkiewicz
Linus Torvalds1da177e2005-04-16 15:20:36 -07006 * Portions copyright (c) 2001 Sun Microsystems
7 *
8 *
9 * RCC/ServerWorks IDE driver for Linux
10 *
11 * OSB4: `Open South Bridge' IDE Interface (fn 1)
12 * supports UDMA mode 2 (33 MB/s)
13 *
14 * CSB5: `Champion South Bridge' IDE Interface (fn 1)
15 * all revisions support UDMA mode 4 (66 MB/s)
16 * revision A2.0 and up support UDMA mode 5 (100 MB/s)
17 *
18 * *** The CSB5 does not provide ANY register ***
19 * *** to detect 80-conductor cable presence. ***
20 *
21 * CSB6: `Champion South Bridge' IDE Interface (optional: third channel)
22 *
Narendra Sankar84f57fb2005-08-18 22:30:35 +020023 * HT1000: AKA BCM5785 - Hypertransport Southbridge for Opteron systems. IDE
24 * controller same as the CSB6. Single channel ATA100 only.
25 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070026 * Documentation:
27 * Available under NDA only. Errata info very hard to get.
28 *
29 */
30
Linus Torvalds1da177e2005-04-16 15:20:36 -070031#include <linux/types.h>
32#include <linux/module.h>
33#include <linux/kernel.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070034#include <linux/pci.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070035#include <linux/ide.h>
36#include <linux/init.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070037
38#include <asm/io.h>
39
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +020040#define DRV_NAME "serverworks"
41
Linus Torvalds1da177e2005-04-16 15:20:36 -070042#define SVWKS_CSB5_REVISION_NEW 0x92 /* min PCI_REVISION_ID for UDMA5 (A2.0) */
43#define SVWKS_CSB6_REVISION 0xa0 /* min PCI_REVISION_ID for UDMA4 (A1.0) */
44
45/* Seagate Barracuda ATA IV Family drives in UDMA mode 5
46 * can overrun their FIFOs when used with the CSB5 */
47static const char *svwks_bad_ata100[] = {
48 "ST320011A",
49 "ST340016A",
50 "ST360021A",
51 "ST380021A",
52 NULL
53};
54
Linus Torvalds1da177e2005-04-16 15:20:36 -070055static int check_in_drive_lists (ide_drive_t *drive, const char **list)
56{
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +020057 char *m = (char *)&drive->id[ATA_ID_PROD];
58
Linus Torvalds1da177e2005-04-16 15:20:36 -070059 while (*list)
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +020060 if (!strcmp(*list++, m))
Linus Torvalds1da177e2005-04-16 15:20:36 -070061 return 1;
62 return 0;
63}
64
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +020065static u8 svwks_udma_filter(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -070066{
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +010067 struct pci_dev *dev = to_pci_dev(drive->hwif->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -070068
Bartlomiej Zolnierkiewicze7593af2010-01-18 07:19:22 +000069 if (dev->device == PCI_DEVICE_ID_SERVERWORKS_HT1000IDE) {
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +020070 return 0x1f;
Auke Kok44c10132007-06-08 15:46:36 -070071 } else if (dev->revision < SVWKS_CSB5_REVISION_NEW) {
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +020072 return 0x07;
Bartlomiej Zolnierkiewicze7593af2010-01-18 07:19:22 +000073 } else {
74 u8 btr = 0, mode, mask;
75
Linus Torvalds1da177e2005-04-16 15:20:36 -070076 pci_read_config_byte(dev, 0x5A, &btr);
77 mode = btr & 0x3;
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +020078
Linus Torvalds1da177e2005-04-16 15:20:36 -070079 /* If someone decides to do UDMA133 on CSB5 the same
80 issue will bite so be inclusive */
81 if (mode > 2 && check_in_drive_lists(drive, svwks_bad_ata100))
82 mode = 2;
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +020083
84 switch(mode) {
Tony Battersby0c824b52007-10-16 22:29:52 +020085 case 3: mask = 0x3f; break;
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +020086 case 2: mask = 0x1f; break;
87 case 1: mask = 0x07; break;
88 default: mask = 0x00; break;
89 }
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +020090
Bartlomiej Zolnierkiewicze7593af2010-01-18 07:19:22 +000091 return mask;
92 }
Linus Torvalds1da177e2005-04-16 15:20:36 -070093}
94
95static u8 svwks_csb_check (struct pci_dev *dev)
96{
97 switch (dev->device) {
98 case PCI_DEVICE_ID_SERVERWORKS_CSB5IDE:
99 case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE:
100 case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2:
Narendra Sankar84f57fb2005-08-18 22:30:35 +0200101 case PCI_DEVICE_ID_SERVERWORKS_HT1000IDE:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102 return 1;
103 default:
104 break;
105 }
106 return 0;
107}
Bartlomiej Zolnierkiewicz1880a8d2007-07-20 01:11:56 +0200108
Bartlomiej Zolnierkiewicze085b3c2010-01-19 01:44:41 -0800109static void svwks_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
Bartlomiej Zolnierkiewicz1880a8d2007-07-20 01:11:56 +0200110{
111 static const u8 pio_modes[] = { 0x5d, 0x47, 0x34, 0x22, 0x20 };
112 static const u8 drive_pci[] = { 0x41, 0x40, 0x43, 0x42 };
113
Bartlomiej Zolnierkiewicze085b3c2010-01-19 01:44:41 -0800114 struct pci_dev *dev = to_pci_dev(hwif->dev);
115 const u8 pio = drive->pio_mode - XFER_PIO_0;
Bartlomiej Zolnierkiewicz1880a8d2007-07-20 01:11:56 +0200116
117 pci_write_config_byte(dev, drive_pci[drive->dn], pio_modes[pio]);
118
119 if (svwks_csb_check(dev)) {
120 u16 csb_pio = 0;
121
122 pci_read_config_word(dev, 0x4a, &csb_pio);
123
124 csb_pio &= ~(0x0f << (4 * drive->dn));
125 csb_pio |= (pio << (4 * drive->dn));
126
127 pci_write_config_word(dev, 0x4a, csb_pio);
128 }
129}
130
Bartlomiej Zolnierkiewicz87761682010-01-19 01:45:29 -0800131static void svwks_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132{
Alan Coxf201f502006-06-28 04:27:02 -0700133 static const u8 udma_modes[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05 };
134 static const u8 dma_modes[] = { 0x77, 0x21, 0x20 };
Alan Coxf201f502006-06-28 04:27:02 -0700135 static const u8 drive_pci2[] = { 0x45, 0x44, 0x47, 0x46 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100137 struct pci_dev *dev = to_pci_dev(hwif->dev);
Bartlomiej Zolnierkiewicz87761682010-01-19 01:45:29 -0800138 const u8 speed = drive->dma_mode;
Bartlomiej Zolnierkiewicz123995b2008-10-13 21:39:40 +0200139 u8 unit = drive->dn & 1;
Bartlomiej Zolnierkiewicz1880a8d2007-07-20 01:11:56 +0200140
141 u8 ultra_enable = 0, ultra_timing = 0, dma_timing = 0;
142
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143 pci_read_config_byte(dev, (0x56|hwif->channel), &ultra_timing);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144 pci_read_config_byte(dev, 0x54, &ultra_enable);
145
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146 ultra_timing &= ~(0x0F << (4*unit));
147 ultra_enable &= ~(0x01 << drive->dn);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148
Bartlomiej Zolnierkiewicz7b971df2008-01-26 20:12:59 +0100149 if (speed >= XFER_UDMA_0) {
150 dma_timing |= dma_modes[2];
151 ultra_timing |= (udma_modes[speed - XFER_UDMA_0] << (4 * unit));
152 ultra_enable |= (0x01 << drive->dn);
153 } else if (speed >= XFER_MW_DMA_0)
154 dma_timing |= dma_modes[speed - XFER_MW_DMA_0];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156 pci_write_config_byte(dev, drive_pci2[drive->dn], dma_timing);
157 pci_write_config_byte(dev, (0x56|hwif->channel), ultra_timing);
158 pci_write_config_byte(dev, 0x54, ultra_enable);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159}
160
Bartlomiej Zolnierkiewicz2ed0ef52009-03-24 23:22:53 +0100161static int init_chipset_svwks(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162{
163 unsigned int reg;
164 u8 btr;
165
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166 /* force Master Latency Timer value to 64 PCICLKs */
167 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x40);
168
169 /* OSB4 : South Bridge and IDE */
170 if (dev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4IDE) {
Bartlomiej Zolnierkiewicze7593af2010-01-18 07:19:22 +0000171 struct pci_dev *isa_dev =
172 pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
173 PCI_DEVICE_ID_SERVERWORKS_OSB4, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 if (isa_dev) {
175 pci_read_config_dword(isa_dev, 0x64, &reg);
176 reg &= ~0x00002000; /* disable 600ns interrupt mask */
177 if(!(reg & 0x00004000))
Bartlomiej Zolnierkiewicza326b022008-07-24 22:53:33 +0200178 printk(KERN_DEBUG DRV_NAME " %s: UDMA not BIOS "
179 "enabled.\n", pci_name(dev));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180 reg |= 0x00004000; /* enable UDMA/33 support */
181 pci_write_config_dword(isa_dev, 0x64, reg);
Bartlomiej Zolnierkiewiczcb06fc32010-01-18 07:19:30 +0000182 pci_dev_put(isa_dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183 }
184 }
185
186 /* setup CSB5/CSB6 : South Bridge and IDE option RAID */
187 else if ((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE) ||
188 (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) ||
189 (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) {
190
191 /* Third Channel Test */
192 if (!(PCI_FUNC(dev->devfn) & 1)) {
193 struct pci_dev * findev = NULL;
194 u32 reg4c = 0;
Alan Cox970a6132006-09-30 23:27:29 -0700195 findev = pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196 PCI_DEVICE_ID_SERVERWORKS_CSB5, NULL);
197 if (findev) {
198 pci_read_config_dword(findev, 0x4C, &reg4c);
199 reg4c &= ~0x000007FF;
200 reg4c |= 0x00000040;
201 reg4c |= 0x00000020;
202 pci_write_config_dword(findev, 0x4C, reg4c);
Alan Cox970a6132006-09-30 23:27:29 -0700203 pci_dev_put(findev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204 }
205 outb_p(0x06, 0x0c00);
206 dev->irq = inb_p(0x0c01);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207 } else {
208 struct pci_dev * findev = NULL;
209 u8 reg41 = 0;
210
Alan Cox970a6132006-09-30 23:27:29 -0700211 findev = pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212 PCI_DEVICE_ID_SERVERWORKS_CSB6, NULL);
213 if (findev) {
214 pci_read_config_byte(findev, 0x41, &reg41);
215 reg41 &= ~0x40;
216 pci_write_config_byte(findev, 0x41, reg41);
Alan Cox970a6132006-09-30 23:27:29 -0700217 pci_dev_put(findev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218 }
219 /*
220 * This is a device pin issue on CSB6.
221 * Since there will be a future raid mode,
222 * early versions of the chipset require the
223 * interrupt pin to be set, and it is a compatibility
224 * mode issue.
225 */
226 if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE)
227 dev->irq = 0;
228 }
229// pci_read_config_dword(dev, 0x40, &pioreg)
230// pci_write_config_dword(dev, 0x40, 0x99999999);
231// pci_read_config_dword(dev, 0x44, &dmareg);
232// pci_write_config_dword(dev, 0x44, 0xFFFFFFFF);
233 /* setup the UDMA Control register
234 *
235 * 1. clear bit 6 to enable DMA
236 * 2. enable DMA modes with bits 0-1
237 * 00 : legacy
238 * 01 : udma2
239 * 10 : udma2/udma4
240 * 11 : udma2/udma4/udma5
241 */
242 pci_read_config_byte(dev, 0x5A, &btr);
243 btr &= ~0x40;
244 if (!(PCI_FUNC(dev->devfn) & 1))
245 btr |= 0x2;
246 else
Auke Kok44c10132007-06-08 15:46:36 -0700247 btr |= (dev->revision >= SVWKS_CSB5_REVISION_NEW) ? 0x3 : 0x2;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248 pci_write_config_byte(dev, 0x5A, btr);
249 }
Narendra Sankar84f57fb2005-08-18 22:30:35 +0200250 /* Setup HT1000 SouthBridge Controller - Single Channel Only */
251 else if (dev->device == PCI_DEVICE_ID_SERVERWORKS_HT1000IDE) {
252 pci_read_config_byte(dev, 0x5A, &btr);
253 btr &= ~0x40;
254 btr |= 0x3;
255 pci_write_config_byte(dev, 0x5A, btr);
256 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257
Bartlomiej Zolnierkiewicz2ed0ef52009-03-24 23:22:53 +0100258 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259}
260
Bartlomiej Zolnierkiewiczf454cbe2008-08-05 18:17:04 +0200261static u8 ata66_svwks_svwks(ide_hwif_t *hwif)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262{
Bartlomiej Zolnierkiewicz49521f92007-07-09 23:17:58 +0200263 return ATA_CBL_PATA80;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264}
265
266/* On Dell PowerEdge servers with a CSB5/CSB6, the top two bits
267 * of the subsystem device ID indicate presence of an 80-pin cable.
268 * Bit 15 clear = secondary IDE channel does not have 80-pin cable.
269 * Bit 15 set = secondary IDE channel has 80-pin cable.
270 * Bit 14 clear = primary IDE channel does not have 80-pin cable.
271 * Bit 14 set = primary IDE channel has 80-pin cable.
272 */
Bartlomiej Zolnierkiewiczf454cbe2008-08-05 18:17:04 +0200273static u8 ata66_svwks_dell(ide_hwif_t *hwif)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274{
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100275 struct pci_dev *dev = to_pci_dev(hwif->dev);
276
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277 if (dev->subsystem_vendor == PCI_VENDOR_ID_DELL &&
278 dev->vendor == PCI_VENDOR_ID_SERVERWORKS &&
279 (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE ||
280 dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE))
281 return ((1 << (hwif->channel + 14)) &
Bartlomiej Zolnierkiewicz49521f92007-07-09 23:17:58 +0200282 dev->subsystem_device) ? ATA_CBL_PATA80 : ATA_CBL_PATA40;
283 return ATA_CBL_PATA40;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284}
285
286/* Sun Cobalt Alpine hardware avoids the 80-pin cable
287 * detect issue by attaching the drives directly to the board.
288 * This check follows the Dell precedent (how scary is that?!)
289 *
290 * WARNING: this only works on Alpine hardware!
291 */
Bartlomiej Zolnierkiewiczf454cbe2008-08-05 18:17:04 +0200292static u8 ata66_svwks_cobalt(ide_hwif_t *hwif)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293{
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100294 struct pci_dev *dev = to_pci_dev(hwif->dev);
295
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296 if (dev->subsystem_vendor == PCI_VENDOR_ID_SUN &&
297 dev->vendor == PCI_VENDOR_ID_SERVERWORKS &&
298 dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE)
299 return ((1 << (hwif->channel + 14)) &
Bartlomiej Zolnierkiewicz49521f92007-07-09 23:17:58 +0200300 dev->subsystem_device) ? ATA_CBL_PATA80 : ATA_CBL_PATA40;
301 return ATA_CBL_PATA40;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302}
303
Bartlomiej Zolnierkiewiczf454cbe2008-08-05 18:17:04 +0200304static u8 svwks_cable_detect(ide_hwif_t *hwif)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305{
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100306 struct pci_dev *dev = to_pci_dev(hwif->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308 /* Server Works */
309 if (dev->subsystem_vendor == PCI_VENDOR_ID_SERVERWORKS)
310 return ata66_svwks_svwks (hwif);
311
312 /* Dell PowerEdge */
313 if (dev->subsystem_vendor == PCI_VENDOR_ID_DELL)
314 return ata66_svwks_dell (hwif);
315
316 /* Cobalt Alpine */
317 if (dev->subsystem_vendor == PCI_VENDOR_ID_SUN)
318 return ata66_svwks_cobalt (hwif);
319
Alan Coxf201f502006-06-28 04:27:02 -0700320 /* Per Specified Design by OEM, and ASIC Architect */
321 if ((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) ||
322 (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2))
Bartlomiej Zolnierkiewicz49521f92007-07-09 23:17:58 +0200323 return ATA_CBL_PATA80;
Alan Coxf201f502006-06-28 04:27:02 -0700324
Bartlomiej Zolnierkiewicz49521f92007-07-09 23:17:58 +0200325 return ATA_CBL_PATA40;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326}
327
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200328static const struct ide_port_ops osb4_port_ops = {
329 .set_pio_mode = svwks_set_pio_mode,
330 .set_dma_mode = svwks_set_dma_mode,
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200331};
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100332
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200333static const struct ide_port_ops svwks_port_ops = {
334 .set_pio_mode = svwks_set_pio_mode,
335 .set_dma_mode = svwks_set_dma_mode,
336 .udma_filter = svwks_udma_filter,
337 .cable_detect = svwks_cable_detect,
338};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339
Bartlomiej Zolnierkiewicz85620432007-10-20 00:32:34 +0200340static const struct ide_port_info serverworks_chipsets[] __devinitdata = {
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +0200341 { /* 0: OSB4 */
342 .name = DRV_NAME,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700343 .init_chipset = init_chipset_svwks,
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200344 .port_ops = &osb4_port_ops,
Bartlomiej Zolnierkiewicz4099d142007-07-20 01:11:59 +0200345 .pio_mask = ATA_PIO4,
Bartlomiej Zolnierkiewicz5f8b6c32007-10-19 00:30:07 +0200346 .mwdma_mask = ATA_MWDMA2,
347 .udma_mask = 0x00, /* UDMA is problematic on OSB4 */
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +0200348 },
349 { /* 1: CSB5 */
350 .name = DRV_NAME,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351 .init_chipset = init_chipset_svwks,
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200352 .port_ops = &svwks_port_ops,
Bartlomiej Zolnierkiewicz4099d142007-07-20 01:11:59 +0200353 .pio_mask = ATA_PIO4,
Bartlomiej Zolnierkiewicz5f8b6c32007-10-19 00:30:07 +0200354 .mwdma_mask = ATA_MWDMA2,
355 .udma_mask = ATA_UDMA5,
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +0200356 },
357 { /* 2: CSB6 */
358 .name = DRV_NAME,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359 .init_chipset = init_chipset_svwks,
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200360 .port_ops = &svwks_port_ops,
Bartlomiej Zolnierkiewicz4099d142007-07-20 01:11:59 +0200361 .pio_mask = ATA_PIO4,
Bartlomiej Zolnierkiewicz5f8b6c32007-10-19 00:30:07 +0200362 .mwdma_mask = ATA_MWDMA2,
363 .udma_mask = ATA_UDMA5,
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +0200364 },
365 { /* 3: CSB6-2 */
366 .name = DRV_NAME,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367 .init_chipset = init_chipset_svwks,
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200368 .port_ops = &svwks_port_ops,
Bartlomiej Zolnierkiewicz24679222009-03-24 23:22:52 +0100369 .host_flags = IDE_HFLAG_SINGLE,
Bartlomiej Zolnierkiewicz4099d142007-07-20 01:11:59 +0200370 .pio_mask = ATA_PIO4,
Bartlomiej Zolnierkiewicz5f8b6c32007-10-19 00:30:07 +0200371 .mwdma_mask = ATA_MWDMA2,
372 .udma_mask = ATA_UDMA5,
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +0200373 },
374 { /* 4: HT1000 */
375 .name = DRV_NAME,
Narendra Sankar84f57fb2005-08-18 22:30:35 +0200376 .init_chipset = init_chipset_svwks,
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200377 .port_ops = &svwks_port_ops,
Bartlomiej Zolnierkiewicz24679222009-03-24 23:22:52 +0100378 .host_flags = IDE_HFLAG_SINGLE,
Bartlomiej Zolnierkiewicz4099d142007-07-20 01:11:59 +0200379 .pio_mask = ATA_PIO4,
Bartlomiej Zolnierkiewicz5f8b6c32007-10-19 00:30:07 +0200380 .mwdma_mask = ATA_MWDMA2,
381 .udma_mask = ATA_UDMA5,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382 }
383};
384
385/**
386 * svwks_init_one - called when a OSB/CSB is found
387 * @dev: the svwks device
388 * @id: the matching pci id
389 *
390 * Called when the PCI registration layer (or the IDE initialization)
391 * finds a device matching our IDE device tables.
392 */
393
394static int __devinit svwks_init_one(struct pci_dev *dev, const struct pci_device_id *id)
395{
Bartlomiej Zolnierkiewicz039788e2007-10-20 00:32:34 +0200396 struct ide_port_info d;
Bartlomiej Zolnierkiewicz7ed58292007-10-19 00:30:09 +0200397 u8 idx = id->driver_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398
Bartlomiej Zolnierkiewicz7ed58292007-10-19 00:30:09 +0200399 d = serverworks_chipsets[idx];
400
Bartlomiej Zolnierkiewicz8ac2b422008-02-01 23:09:30 +0100401 if (idx == 1)
402 d.host_flags |= IDE_HFLAG_CLEAR_SIMPLEX;
403 else if (idx == 2 || idx == 3) {
Bartlomiej Zolnierkiewicz7ed58292007-10-19 00:30:09 +0200404 if ((PCI_FUNC(dev->devfn) & 1) == 0) {
405 if (pci_resource_start(dev, 0) != 0x01f1)
Bartlomiej Zolnierkiewicz5e71d9c2008-04-26 17:36:35 +0200406 d.host_flags |= IDE_HFLAG_NON_BOOTABLE;
Bartlomiej Zolnierkiewicz7ed58292007-10-19 00:30:09 +0200407 d.host_flags |= IDE_HFLAG_SINGLE;
408 } else
409 d.host_flags &= ~IDE_HFLAG_SINGLE;
410 }
411
Bartlomiej Zolnierkiewicz6cdf6eb2008-07-24 22:53:14 +0200412 return ide_pci_init_one(dev, &d, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413}
414
Bartlomiej Zolnierkiewicz9cbcc5e2007-10-16 22:29:56 +0200415static const struct pci_device_id svwks_pci_tbl[] = {
416 { PCI_VDEVICE(SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_OSB4IDE), 0 },
417 { PCI_VDEVICE(SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE), 1 },
418 { PCI_VDEVICE(SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB6IDE), 2 },
419 { PCI_VDEVICE(SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2), 3 },
420 { PCI_VDEVICE(SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000IDE), 4 },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421 { 0, },
422};
423MODULE_DEVICE_TABLE(pci, svwks_pci_tbl);
424
Bartlomiej Zolnierkiewicza9ab09e2008-10-13 21:39:41 +0200425static struct pci_driver svwks_pci_driver = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426 .name = "Serverworks_IDE",
427 .id_table = svwks_pci_tbl,
428 .probe = svwks_init_one,
Bartlomiej Zolnierkiewiczbc2c9a82008-07-24 22:53:25 +0200429 .remove = ide_pci_remove,
Bartlomiej Zolnierkiewiczfeb22b72008-10-10 22:39:32 +0200430 .suspend = ide_pci_suspend,
431 .resume = ide_pci_resume,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432};
433
Bartlomiej Zolnierkiewicz82ab1ee2007-01-27 13:46:56 +0100434static int __init svwks_ide_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435{
Bartlomiej Zolnierkiewicza9ab09e2008-10-13 21:39:41 +0200436 return ide_pci_register_driver(&svwks_pci_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437}
438
Bartlomiej Zolnierkiewiczbc2c9a82008-07-24 22:53:25 +0200439static void __exit svwks_ide_exit(void)
440{
Bartlomiej Zolnierkiewicza9ab09e2008-10-13 21:39:41 +0200441 pci_unregister_driver(&svwks_pci_driver);
Bartlomiej Zolnierkiewiczbc2c9a82008-07-24 22:53:25 +0200442}
443
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444module_init(svwks_ide_init);
Bartlomiej Zolnierkiewiczbc2c9a82008-07-24 22:53:25 +0200445module_exit(svwks_ide_exit);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446
Bartlomiej Zolnierkiewicze7593af2010-01-18 07:19:22 +0000447MODULE_AUTHOR("Michael Aubry. Andrzej Krzysztofowicz, Andre Hedrick, Bartlomiej Zolnierkiewicz");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448MODULE_DESCRIPTION("PCI driver module for Serverworks OSB4/CSB5/CSB6 IDE");
449MODULE_LICENSE("GPL");