blob: 57de02123c4cde74a69314f0d8d408140f459377 [file] [log] [blame]
Jeff Garzik669a5db2006-08-29 18:12:40 -04001/*
Jeff Garzika0fcdc02007-03-09 07:24:15 -05002 * pata_serverworks.c - Serverworks PATA for new ATA layer
Jeff Garzik669a5db2006-08-29 18:12:40 -04003 * (C) 2005 Red Hat Inc
Bartlomiej Zolnierkiewicz84903772010-01-18 18:16:38 +01004 * (C) 2010 Bartlomiej Zolnierkiewicz
Jeff Garzik669a5db2006-08-29 18:12:40 -04005 *
6 * based upon
7 *
8 * serverworks.c
Jeff Garzik85cd7252006-08-31 00:03:49 -04009 *
Jeff Garzik669a5db2006-08-29 18:12:40 -040010 * Copyright (C) 1998-2000 Michel Aubry
11 * Copyright (C) 1998-2000 Andrzej Krzysztofowicz
12 * Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org>
13 * Portions copyright (c) 2001 Sun Microsystems
14 *
15 *
16 * RCC/ServerWorks IDE driver for Linux
17 *
18 * OSB4: `Open South Bridge' IDE Interface (fn 1)
19 * supports UDMA mode 2 (33 MB/s)
20 *
21 * CSB5: `Champion South Bridge' IDE Interface (fn 1)
22 * all revisions support UDMA mode 4 (66 MB/s)
23 * revision A2.0 and up support UDMA mode 5 (100 MB/s)
24 *
25 * *** The CSB5 does not provide ANY register ***
26 * *** to detect 80-conductor cable presence. ***
27 *
28 * CSB6: `Champion South Bridge' IDE Interface (optional: third channel)
29 *
30 * Documentation:
31 * Available under NDA only. Errata info very hard to get.
32 */
33
34#include <linux/kernel.h>
35#include <linux/module.h>
36#include <linux/pci.h>
Jeff Garzik669a5db2006-08-29 18:12:40 -040037#include <linux/blkdev.h>
38#include <linux/delay.h>
39#include <scsi/scsi_host.h>
40#include <linux/libata.h>
41
42#define DRV_NAME "pata_serverworks"
Alan Cox0f069782008-01-19 15:52:56 +000043#define DRV_VERSION "0.4.3"
Jeff Garzik669a5db2006-08-29 18:12:40 -040044
45#define SVWKS_CSB5_REVISION_NEW 0x92 /* min PCI_REVISION_ID for UDMA5 (A2.0) */
46#define SVWKS_CSB6_REVISION 0xa0 /* min PCI_REVISION_ID for UDMA4 (A1.0) */
47
48/* Seagate Barracuda ATA IV Family drives in UDMA mode 5
49 * can overrun their FIFOs when used with the CSB5 */
50
51static const char *csb_bad_ata100[] = {
52 "ST320011A",
53 "ST340016A",
54 "ST360021A",
55 "ST380021A",
56 NULL
57};
58
59/**
Bartlomiej Zolnierkiewicze69a70d2011-10-13 12:32:18 +020060 * oem_cable - Dell/Sun serverworks cable detection
Jeff Garzik669a5db2006-08-29 18:12:40 -040061 * @ap: ATA port to do cable detect
62 *
Bartlomiej Zolnierkiewicze69a70d2011-10-13 12:32:18 +020063 * Dell PowerEdge and Sun Cobalt 'Alpine' hide the 40/80 pin select
64 * for their interfaces in the top two bits of the subsystem ID.
Jeff Garzik669a5db2006-08-29 18:12:40 -040065 */
Jeff Garzik85cd7252006-08-31 00:03:49 -040066
Bartlomiej Zolnierkiewicze69a70d2011-10-13 12:32:18 +020067static int oem_cable(struct ata_port *ap)
Bartlomiej Zolnierkiewicz5860a552011-10-11 20:09:31 +020068{
Jeff Garzik669a5db2006-08-29 18:12:40 -040069 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
Jeff Garzik85cd7252006-08-31 00:03:49 -040070
Jeff Garzik669a5db2006-08-29 18:12:40 -040071 if (pdev->subsystem_device & (1 << (ap->port_no + 14)))
72 return ATA_CBL_PATA80;
73 return ATA_CBL_PATA40;
74}
75
Jeff Garzik669a5db2006-08-29 18:12:40 -040076struct sv_cable_table {
77 int device;
78 int subvendor;
79 int (*cable_detect)(struct ata_port *ap);
80};
81
Jeff Garzik669a5db2006-08-29 18:12:40 -040082static struct sv_cable_table cable_detect[] = {
Bartlomiej Zolnierkiewicze69a70d2011-10-13 12:32:18 +020083 { PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, PCI_VENDOR_ID_DELL, oem_cable },
84 { PCI_DEVICE_ID_SERVERWORKS_CSB6IDE, PCI_VENDOR_ID_DELL, oem_cable },
85 { PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, PCI_VENDOR_ID_SUN, oem_cable },
Bartlomiej Zolnierkiewicz5860a552011-10-11 20:09:31 +020086 { PCI_DEVICE_ID_SERVERWORKS_OSB4IDE, PCI_ANY_ID, ata_cable_40wire },
87 { PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, PCI_ANY_ID, ata_cable_unknown },
88 { PCI_DEVICE_ID_SERVERWORKS_CSB6IDE, PCI_ANY_ID, ata_cable_unknown },
89 { PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2, PCI_ANY_ID, ata_cable_unknown },
90 { PCI_DEVICE_ID_SERVERWORKS_HT1000IDE, PCI_ANY_ID, ata_cable_unknown },
Jeff Garzik669a5db2006-08-29 18:12:40 -040091 { }
92};
93
94/**
Jeff Garzika0fcdc02007-03-09 07:24:15 -050095 * serverworks_cable_detect - cable detection
Jeff Garzik669a5db2006-08-29 18:12:40 -040096 * @ap: ATA port
97 *
Jeff Garzik85cd7252006-08-31 00:03:49 -040098 * Perform cable detection according to the device and subvendor
Jeff Garzik669a5db2006-08-29 18:12:40 -040099 * identifications
100 */
Jeff Garzik85cd7252006-08-31 00:03:49 -0400101
Tejun Heod4b2bab2007-02-02 16:50:52 +0900102static int serverworks_cable_detect(struct ata_port *ap)
103{
Jeff Garzik669a5db2006-08-29 18:12:40 -0400104 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
105 struct sv_cable_table *cb = cable_detect;
106
107 while(cb->device) {
Jeff Garzik85cd7252006-08-31 00:03:49 -0400108 if (cb->device == pdev->device &&
Jeff Garzik669a5db2006-08-29 18:12:40 -0400109 (cb->subvendor == pdev->subsystem_vendor ||
110 cb->subvendor == PCI_ANY_ID)) {
Jeff Garzika0fcdc02007-03-09 07:24:15 -0500111 return cb->cable_detect(ap);
Jeff Garzik669a5db2006-08-29 18:12:40 -0400112 }
113 cb++;
114 }
115
116 BUG();
117 return -1; /* kill compiler warning */
118}
119
Jeff Garzik669a5db2006-08-29 18:12:40 -0400120/**
121 * serverworks_is_csb - Check for CSB or OSB
122 * @pdev: PCI device to check
123 *
124 * Returns true if the device being checked is known to be a CSB
125 * series device.
126 */
Jeff Garzik85cd7252006-08-31 00:03:49 -0400127
Jeff Garzik669a5db2006-08-29 18:12:40 -0400128static u8 serverworks_is_csb(struct pci_dev *pdev)
129{
130 switch (pdev->device) {
131 case PCI_DEVICE_ID_SERVERWORKS_CSB5IDE:
132 case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE:
133 case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2:
134 case PCI_DEVICE_ID_SERVERWORKS_HT1000IDE:
135 return 1;
136 default:
137 break;
138 }
139 return 0;
140}
141
142/**
143 * serverworks_osb4_filter - mode selection filter
Jeff Garzik669a5db2006-08-29 18:12:40 -0400144 * @adev: ATA device
Alan Coxa76b62c2007-03-09 09:34:07 -0500145 * @mask: Mask of proposed modes
Jeff Garzik669a5db2006-08-29 18:12:40 -0400146 *
147 * Filter the offered modes for the device to apply controller
148 * specific rules. OSB4 requires no UDMA for disks due to a FIFO
149 * bug we hit.
150 */
Jeff Garzik85cd7252006-08-31 00:03:49 -0400151
Alan Coxa76b62c2007-03-09 09:34:07 -0500152static unsigned long serverworks_osb4_filter(struct ata_device *adev, unsigned long mask)
Jeff Garzik669a5db2006-08-29 18:12:40 -0400153{
154 if (adev->class == ATA_DEV_ATA)
155 mask &= ~ATA_MASK_UDMA;
Tejun Heoc7087652010-05-10 21:41:34 +0200156 return mask;
Jeff Garzik669a5db2006-08-29 18:12:40 -0400157}
158
159
160/**
161 * serverworks_csb_filter - mode selection filter
Jeff Garzik669a5db2006-08-29 18:12:40 -0400162 * @adev: ATA device
Alan Coxa76b62c2007-03-09 09:34:07 -0500163 * @mask: Mask of proposed modes
Jeff Garzik669a5db2006-08-29 18:12:40 -0400164 *
165 * Check the blacklist and disable UDMA5 if matched
166 */
167
Alan Coxa76b62c2007-03-09 09:34:07 -0500168static unsigned long serverworks_csb_filter(struct ata_device *adev, unsigned long mask)
Jeff Garzik669a5db2006-08-29 18:12:40 -0400169{
170 const char *p;
Tejun Heo8bfa79f2007-01-02 20:19:40 +0900171 char model_num[ATA_ID_PROD_LEN + 1];
172 int i;
Jeff Garzik669a5db2006-08-29 18:12:40 -0400173
Jeff Garzik85cd7252006-08-31 00:03:49 -0400174 /* Disk, UDMA */
Jeff Garzik669a5db2006-08-29 18:12:40 -0400175 if (adev->class != ATA_DEV_ATA)
Tejun Heoc7087652010-05-10 21:41:34 +0200176 return mask;
Jeff Garzik669a5db2006-08-29 18:12:40 -0400177
178 /* Actually do need to check */
Tejun Heo8bfa79f2007-01-02 20:19:40 +0900179 ata_id_c_string(adev->id, model_num, ATA_ID_PROD, sizeof(model_num));
Jeff Garzik85cd7252006-08-31 00:03:49 -0400180
Tejun Heo8bfa79f2007-01-02 20:19:40 +0900181 for (i = 0; (p = csb_bad_ata100[i]) != NULL; i++) {
182 if (!strcmp(p, model_num))
Alan Cox6ddd6862008-02-26 13:35:54 -0800183 mask &= ~(0xE0 << ATA_SHIFT_UDMA);
Jeff Garzik669a5db2006-08-29 18:12:40 -0400184 }
Tejun Heoc7087652010-05-10 21:41:34 +0200185 return mask;
Jeff Garzik669a5db2006-08-29 18:12:40 -0400186}
187
Jeff Garzik669a5db2006-08-29 18:12:40 -0400188/**
189 * serverworks_set_piomode - set initial PIO mode data
190 * @ap: ATA interface
191 * @adev: ATA device
192 *
193 * Program the OSB4/CSB5 timing registers for PIO. The PIO register
194 * load is done as a simple lookup.
195 */
196static void serverworks_set_piomode(struct ata_port *ap, struct ata_device *adev)
197{
198 static const u8 pio_mode[] = { 0x5d, 0x47, 0x34, 0x22, 0x20 };
Alan Cox0f069782008-01-19 15:52:56 +0000199 int offset = 1 + 2 * ap->port_no - adev->devno;
Jeff Garzik669a5db2006-08-29 18:12:40 -0400200 int devbits = (2 * ap->port_no + adev->devno) * 4;
201 u16 csb5_pio;
202 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
203 int pio = adev->pio_mode - XFER_PIO_0;
204
205 pci_write_config_byte(pdev, 0x40 + offset, pio_mode[pio]);
Jeff Garzik85cd7252006-08-31 00:03:49 -0400206
Jeff Garzik669a5db2006-08-29 18:12:40 -0400207 /* The OSB4 just requires the timing but the CSB series want the
208 mode number as well */
209 if (serverworks_is_csb(pdev)) {
210 pci_read_config_word(pdev, 0x4A, &csb5_pio);
211 csb5_pio &= ~(0x0F << devbits);
Bartlomiej Zolnierkiewicz84903772010-01-18 18:16:38 +0100212 pci_write_config_word(pdev, 0x4A, csb5_pio | (pio << devbits));
Jeff Garzik669a5db2006-08-29 18:12:40 -0400213 }
214}
215
216/**
217 * serverworks_set_dmamode - set initial DMA mode data
218 * @ap: ATA interface
219 * @adev: ATA device
220 *
221 * Program the MWDMA/UDMA modes for the serverworks OSB4/CSB5
222 * chipset. The MWDMA mode values are pulled from a lookup table
223 * while the chipset uses mode number for UDMA.
224 */
225
226static void serverworks_set_dmamode(struct ata_port *ap, struct ata_device *adev)
227{
228 static const u8 dma_mode[] = { 0x77, 0x21, 0x20 };
229 int offset = 1 + 2 * ap->port_no - adev->devno;
Alan Cox36beb822007-11-05 15:04:40 +0000230 int devbits = 2 * ap->port_no + adev->devno;
Jeff Garzik669a5db2006-08-29 18:12:40 -0400231 u8 ultra;
232 u8 ultra_cfg;
233 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
234
235 pci_read_config_byte(pdev, 0x54, &ultra_cfg);
Alan Cox36beb822007-11-05 15:04:40 +0000236 pci_read_config_byte(pdev, 0x56 + ap->port_no, &ultra);
237 ultra &= ~(0x0F << (adev->devno * 4));
Jeff Garzik669a5db2006-08-29 18:12:40 -0400238
239 if (adev->dma_mode >= XFER_UDMA_0) {
240 pci_write_config_byte(pdev, 0x44 + offset, 0x20);
241
Jeff Garzik669a5db2006-08-29 18:12:40 -0400242 ultra |= (adev->dma_mode - XFER_UDMA_0)
Alan Cox36beb822007-11-05 15:04:40 +0000243 << (adev->devno * 4);
Jeff Garzik669a5db2006-08-29 18:12:40 -0400244 ultra_cfg |= (1 << devbits);
245 } else {
Jeff Garzik85cd7252006-08-31 00:03:49 -0400246 pci_write_config_byte(pdev, 0x44 + offset,
Jeff Garzik669a5db2006-08-29 18:12:40 -0400247 dma_mode[adev->dma_mode - XFER_MW_DMA_0]);
248 ultra_cfg &= ~(1 << devbits);
249 }
Alan Cox36beb822007-11-05 15:04:40 +0000250 pci_write_config_byte(pdev, 0x56 + ap->port_no, ultra);
Jeff Garzik669a5db2006-08-29 18:12:40 -0400251 pci_write_config_byte(pdev, 0x54, ultra_cfg);
252}
253
Scott Carter37017ac2014-09-24 18:13:09 -0700254static struct scsi_host_template serverworks_osb4_sht = {
255 ATA_BMDMA_SHT(DRV_NAME),
256 .sg_tablesize = LIBATA_DUMB_MAX_PRD,
257};
258
259static struct scsi_host_template serverworks_csb_sht = {
Tejun Heo68d1d072008-03-25 12:22:49 +0900260 ATA_BMDMA_SHT(DRV_NAME),
Jeff Garzik669a5db2006-08-29 18:12:40 -0400261};
262
263static struct ata_port_operations serverworks_osb4_port_ops = {
Tejun Heo029cfd62008-03-25 12:22:49 +0900264 .inherits = &ata_bmdma_port_ops,
Scott Carter37017ac2014-09-24 18:13:09 -0700265 .qc_prep = ata_bmdma_dumb_qc_prep,
Tejun Heo029cfd62008-03-25 12:22:49 +0900266 .cable_detect = serverworks_cable_detect,
267 .mode_filter = serverworks_osb4_filter,
Jeff Garzik669a5db2006-08-29 18:12:40 -0400268 .set_piomode = serverworks_set_piomode,
269 .set_dmamode = serverworks_set_dmamode,
Jeff Garzik85cd7252006-08-31 00:03:49 -0400270};
Jeff Garzik669a5db2006-08-29 18:12:40 -0400271
272static struct ata_port_operations serverworks_csb_port_ops = {
Tejun Heo029cfd62008-03-25 12:22:49 +0900273 .inherits = &serverworks_osb4_port_ops,
Scott Carter37017ac2014-09-24 18:13:09 -0700274 .qc_prep = ata_bmdma_qc_prep,
Jeff Garzik669a5db2006-08-29 18:12:40 -0400275 .mode_filter = serverworks_csb_filter,
Jeff Garzik85cd7252006-08-31 00:03:49 -0400276};
Jeff Garzik669a5db2006-08-29 18:12:40 -0400277
278static int serverworks_fixup_osb4(struct pci_dev *pdev)
279{
280 u32 reg;
281 struct pci_dev *isa_dev = pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
282 PCI_DEVICE_ID_SERVERWORKS_OSB4, NULL);
283 if (isa_dev) {
284 pci_read_config_dword(isa_dev, 0x64, &reg);
285 reg &= ~0x00002000; /* disable 600ns interrupt mask */
286 if (!(reg & 0x00004000))
287 printk(KERN_DEBUG DRV_NAME ": UDMA not BIOS enabled.\n");
288 reg |= 0x00004000; /* enable UDMA/33 support */
289 pci_write_config_dword(isa_dev, 0x64, reg);
290 pci_dev_put(isa_dev);
291 return 0;
292 }
Bartlomiej Zolnierkiewiczcfcf9ee2010-01-18 18:16:46 +0100293 printk(KERN_WARNING DRV_NAME ": Unable to find bridge.\n");
Jeff Garzik669a5db2006-08-29 18:12:40 -0400294 return -ENODEV;
295}
296
297static int serverworks_fixup_csb(struct pci_dev *pdev)
298{
Jeff Garzik669a5db2006-08-29 18:12:40 -0400299 u8 btr;
Jeff Garzik85cd7252006-08-31 00:03:49 -0400300
Jeff Garzik669a5db2006-08-29 18:12:40 -0400301 /* Third Channel Test */
302 if (!(PCI_FUNC(pdev->devfn) & 1)) {
303 struct pci_dev * findev = NULL;
304 u32 reg4c = 0;
305 findev = pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
306 PCI_DEVICE_ID_SERVERWORKS_CSB5, NULL);
307 if (findev) {
308 pci_read_config_dword(findev, 0x4C, &reg4c);
309 reg4c &= ~0x000007FF;
310 reg4c |= 0x00000040;
311 reg4c |= 0x00000020;
312 pci_write_config_dword(findev, 0x4C, reg4c);
313 pci_dev_put(findev);
314 }
315 } else {
316 struct pci_dev * findev = NULL;
317 u8 reg41 = 0;
318
319 findev = pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
320 PCI_DEVICE_ID_SERVERWORKS_CSB6, NULL);
321 if (findev) {
322 pci_read_config_byte(findev, 0x41, &reg41);
323 reg41 &= ~0x40;
324 pci_write_config_byte(findev, 0x41, reg41);
325 pci_dev_put(findev);
326 }
327 }
328 /* setup the UDMA Control register
329 *
330 * 1. clear bit 6 to enable DMA
331 * 2. enable DMA modes with bits 0-1
332 * 00 : legacy
333 * 01 : udma2
334 * 10 : udma2/udma4
335 * 11 : udma2/udma4/udma5
336 */
337 pci_read_config_byte(pdev, 0x5A, &btr);
338 btr &= ~0x40;
339 if (!(PCI_FUNC(pdev->devfn) & 1))
340 btr |= 0x2;
341 else
Auke Kok44c10132007-06-08 15:46:36 -0700342 btr |= (pdev->revision >= SVWKS_CSB5_REVISION_NEW) ? 0x3 : 0x2;
Jeff Garzik669a5db2006-08-29 18:12:40 -0400343 pci_write_config_byte(pdev, 0x5A, btr);
Jeff Garzik85cd7252006-08-31 00:03:49 -0400344
Jeff Garzik669a5db2006-08-29 18:12:40 -0400345 return btr;
346}
347
348static void serverworks_fixup_ht1000(struct pci_dev *pdev)
349{
350 u8 btr;
351 /* Setup HT1000 SouthBridge Controller - Single Channel Only */
352 pci_read_config_byte(pdev, 0x5A, &btr);
353 btr &= ~0x40;
354 btr |= 0x3;
355 pci_write_config_byte(pdev, 0x5A, btr);
356}
357
Bartlomiej Zolnierkiewiczd912be22011-10-11 20:13:53 +0200358static int serverworks_fixup(struct pci_dev *pdev)
359{
360 int rc = 0;
361
362 /* Force master latency timer to 64 PCI clocks */
363 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x40);
364
365 switch (pdev->device) {
366 case PCI_DEVICE_ID_SERVERWORKS_OSB4IDE:
367 rc = serverworks_fixup_osb4(pdev);
368 break;
369 case PCI_DEVICE_ID_SERVERWORKS_CSB5IDE:
370 ata_pci_bmdma_clear_simplex(pdev);
371 /* fall through */
372 case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE:
373 case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2:
374 rc = serverworks_fixup_csb(pdev);
375 break;
376 case PCI_DEVICE_ID_SERVERWORKS_HT1000IDE:
377 serverworks_fixup_ht1000(pdev);
378 break;
379 }
380
381 return rc;
382}
Jeff Garzik669a5db2006-08-29 18:12:40 -0400383
384static int serverworks_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
385{
Tejun Heo1626aeb2007-05-04 12:43:58 +0200386 static const struct ata_port_info info[4] = {
Jeff Garzik669a5db2006-08-29 18:12:40 -0400387 { /* OSB4 */
Jeff Garzik1d2808f2007-05-28 06:59:48 -0400388 .flags = ATA_FLAG_SLAVE_POSS,
Erik Inge Bolsø14bdef92009-03-14 21:38:24 +0100389 .pio_mask = ATA_PIO4,
390 .mwdma_mask = ATA_MWDMA2,
391 .udma_mask = ATA_UDMA2,
Jeff Garzik669a5db2006-08-29 18:12:40 -0400392 .port_ops = &serverworks_osb4_port_ops
393 }, { /* OSB4 no UDMA */
Jeff Garzik1d2808f2007-05-28 06:59:48 -0400394 .flags = ATA_FLAG_SLAVE_POSS,
Erik Inge Bolsø14bdef92009-03-14 21:38:24 +0100395 .pio_mask = ATA_PIO4,
396 .mwdma_mask = ATA_MWDMA2,
397 /* No UDMA */
Jeff Garzik669a5db2006-08-29 18:12:40 -0400398 .port_ops = &serverworks_osb4_port_ops
399 }, { /* CSB5 */
Jeff Garzik1d2808f2007-05-28 06:59:48 -0400400 .flags = ATA_FLAG_SLAVE_POSS,
Erik Inge Bolsø14bdef92009-03-14 21:38:24 +0100401 .pio_mask = ATA_PIO4,
402 .mwdma_mask = ATA_MWDMA2,
Jeff Garzikbf6263a2007-07-09 12:16:50 -0400403 .udma_mask = ATA_UDMA4,
Jeff Garzik669a5db2006-08-29 18:12:40 -0400404 .port_ops = &serverworks_csb_port_ops
405 }, { /* CSB5 - later revisions*/
Jeff Garzik1d2808f2007-05-28 06:59:48 -0400406 .flags = ATA_FLAG_SLAVE_POSS,
Erik Inge Bolsø14bdef92009-03-14 21:38:24 +0100407 .pio_mask = ATA_PIO4,
408 .mwdma_mask = ATA_MWDMA2,
Jeff Garzikbf6263a2007-07-09 12:16:50 -0400409 .udma_mask = ATA_UDMA5,
Jeff Garzik669a5db2006-08-29 18:12:40 -0400410 .port_ops = &serverworks_csb_port_ops
411 }
412 };
Tejun Heo1626aeb2007-05-04 12:43:58 +0200413 const struct ata_port_info *ppi[] = { &info[id->driver_data], NULL };
Scott Carter37017ac2014-09-24 18:13:09 -0700414 struct scsi_host_template *sht = &serverworks_csb_sht;
Tejun Heof08048e2008-03-25 12:22:47 +0900415 int rc;
416
417 rc = pcim_enable_device(pdev);
418 if (rc)
419 return rc;
Jeff Garzik85cd7252006-08-31 00:03:49 -0400420
Bartlomiej Zolnierkiewiczd912be22011-10-11 20:13:53 +0200421 rc = serverworks_fixup(pdev);
Jeff Garzik669a5db2006-08-29 18:12:40 -0400422
423 /* OSB4 : South Bridge and IDE */
424 if (pdev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4IDE) {
425 /* Select non UDMA capable OSB4 if we can't do fixups */
Bartlomiej Zolnierkiewiczd912be22011-10-11 20:13:53 +0200426 if (rc < 0)
Tejun Heo1626aeb2007-05-04 12:43:58 +0200427 ppi[0] = &info[1];
Scott Carter37017ac2014-09-24 18:13:09 -0700428 sht = &serverworks_osb4_sht;
Jeff Garzik669a5db2006-08-29 18:12:40 -0400429 }
430 /* setup CSB5/CSB6 : South Bridge and IDE option RAID */
431 else if ((pdev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE) ||
432 (pdev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) ||
433 (pdev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) {
Jeff Garzik85cd7252006-08-31 00:03:49 -0400434
Jeff Garzik669a5db2006-08-29 18:12:40 -0400435 /* If the returned btr is the newer revision then
436 select the right info block */
Bartlomiej Zolnierkiewiczd912be22011-10-11 20:13:53 +0200437 if (rc == 3)
Tejun Heo1626aeb2007-05-04 12:43:58 +0200438 ppi[0] = &info[3];
Jeff Garzik85cd7252006-08-31 00:03:49 -0400439
Jeff Garzik669a5db2006-08-29 18:12:40 -0400440 /* Is this the 3rd channel CSB6 IDE ? */
441 if (pdev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)
Tejun Heo1626aeb2007-05-04 12:43:58 +0200442 ppi[1] = &ata_dummy_port_info;
Jeff Garzik669a5db2006-08-29 18:12:40 -0400443 }
Jeff Garzik85cd7252006-08-31 00:03:49 -0400444
Scott Carter37017ac2014-09-24 18:13:09 -0700445 return ata_pci_bmdma_init_one(pdev, ppi, sht, NULL, 0);
Jeff Garzik669a5db2006-08-29 18:12:40 -0400446}
447
Bartlomiej Zolnierkiewicz58eb8cd2014-05-07 17:17:44 +0200448#ifdef CONFIG_PM_SLEEP
Alan38e0d562006-11-27 16:16:35 +0000449static int serverworks_reinit_one(struct pci_dev *pdev)
450{
Jingoo Han0a86e1c2013-06-03 14:05:36 +0900451 struct ata_host *host = pci_get_drvdata(pdev);
Tejun Heof08048e2008-03-25 12:22:47 +0900452 int rc;
453
454 rc = ata_pci_device_do_resume(pdev);
455 if (rc)
456 return rc;
457
Bartlomiej Zolnierkiewiczd912be22011-10-11 20:13:53 +0200458 (void)serverworks_fixup(pdev);
Tejun Heof08048e2008-03-25 12:22:47 +0900459
460 ata_host_resume(host);
461 return 0;
Alan38e0d562006-11-27 16:16:35 +0000462}
Tejun Heo438ac6d2007-03-02 17:31:26 +0900463#endif
Alan38e0d562006-11-27 16:16:35 +0000464
Jeff Garzik2d2744f2006-09-28 20:21:59 -0400465static const struct pci_device_id serverworks[] = {
466 { PCI_VDEVICE(SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_OSB4IDE), 0},
467 { PCI_VDEVICE(SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE), 2},
468 { PCI_VDEVICE(SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB6IDE), 2},
469 { PCI_VDEVICE(SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2), 2},
470 { PCI_VDEVICE(SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000IDE), 2},
471
472 { },
Jeff Garzik669a5db2006-08-29 18:12:40 -0400473};
474
475static struct pci_driver serverworks_pci_driver = {
476 .name = DRV_NAME,
477 .id_table = serverworks,
478 .probe = serverworks_init_one,
Alan38e0d562006-11-27 16:16:35 +0000479 .remove = ata_pci_remove_one,
Bartlomiej Zolnierkiewicz58eb8cd2014-05-07 17:17:44 +0200480#ifdef CONFIG_PM_SLEEP
Alan38e0d562006-11-27 16:16:35 +0000481 .suspend = ata_pci_device_suspend,
482 .resume = serverworks_reinit_one,
Tejun Heo438ac6d2007-03-02 17:31:26 +0900483#endif
Jeff Garzik669a5db2006-08-29 18:12:40 -0400484};
485
Axel Lin2fc75da2012-04-19 13:43:05 +0800486module_pci_driver(serverworks_pci_driver);
Jeff Garzik669a5db2006-08-29 18:12:40 -0400487
Jeff Garzik669a5db2006-08-29 18:12:40 -0400488MODULE_AUTHOR("Alan Cox");
489MODULE_DESCRIPTION("low-level driver for Serverworks OSB4/CSB5/CSB6");
490MODULE_LICENSE("GPL");
491MODULE_DEVICE_TABLE(pci, serverworks);
492MODULE_VERSION(DRV_VERSION);