2 * linux/drivers/ide/pci/serverworks.c Version 0.8 25 Ebr 2003
4 * Copyright (C) 1998-2000 Michel Aubry
5 * Copyright (C) 1998-2000 Andrzej Krzysztofowicz
6 * Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org>
7 * Portions copyright (c) 2001 Sun Microsystems
10 * RCC/ServerWorks IDE driver for Linux
12 * OSB4: `Open South Bridge' IDE Interface (fn 1)
13 * supports UDMA mode 2 (33 MB/s)
15 * CSB5: `Champion South Bridge' IDE Interface (fn 1)
16 * all revisions support UDMA mode 4 (66 MB/s)
17 * revision A2.0 and up support UDMA mode 5 (100 MB/s)
19 * *** The CSB5 does not provide ANY register ***
20 * *** to detect 80-conductor cable presence. ***
22 * CSB6: `Champion South Bridge' IDE Interface (optional: third channel)
25 * Available under NDA only. Errata info very hard to get.
29 #include <linux/config.h>
30 #include <linux/types.h>
31 #include <linux/module.h>
32 #include <linux/kernel.h>
33 #include <linux/ioport.h>
34 #include <linux/pci.h>
35 #include <linux/hdreg.h>
36 #include <linux/ide.h>
37 #include <linux/init.h>
38 #include <linux/delay.h>
42 #include "ide_modes.h"
43 #include "serverworks.h"
45 static u8 svwks_revision = 0;
46 static struct pci_dev *isa_dev;
48 #if defined(DISPLAY_SVWKS_TIMINGS) && defined(CONFIG_PROC_FS)
49 #include <linux/stat.h>
50 #include <linux/proc_fs.h>
52 static u8 svwks_proc = 0;
53 #define SVWKS_MAX_DEVS 2
54 static struct pci_dev *svwks_devs[SVWKS_MAX_DEVS];
55 static int n_svwks_devs;
57 static int svwks_get_info (char *buffer, char **addr, off_t offset, int count)
63 "ServerWorks OSB4/CSB5/CSB6\n");
65 for (i = 0; i < n_svwks_devs; i++) {
66 struct pci_dev *dev = svwks_devs[i];
67 unsigned long bibma = pci_resource_start(dev, 4);
72 pci_read_config_dword(dev, 0x40, ®40);
73 pci_read_config_dword(dev, 0x44, ®44);
74 pci_read_config_word(dev, 0x48, ®48);
75 pci_read_config_byte(dev, 0x54, ®54);
76 pci_read_config_word(dev, 0x56, ®56);
79 * at that point bibma+0x2 et bibma+0xa are byte registers
82 c0 = inb_p(bibma + 0x02);
83 c1 = inb_p(bibma + 0x0a);
85 p += sprintf(p, "\n ServerWorks ");
87 case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2:
88 case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE:
89 p += sprintf(p, "CSB6 ");
91 case PCI_DEVICE_ID_SERVERWORKS_CSB5IDE:
92 p += sprintf(p, "CSB5 ");
94 case PCI_DEVICE_ID_SERVERWORKS_OSB4IDE:
95 p += sprintf(p, "OSB4 ");
98 p += sprintf(p, "%04x ", dev->device);
101 p += sprintf(p, "Chipset (rev %02x)\n", svwks_revision);
103 p += sprintf(p, "------------------------------- "
105 "---------------------------------\n");
106 p += sprintf(p, "--------------- Primary Channel "
107 "---------------- Secondary Channel "
109 p += sprintf(p, " %sabled"
111 (c0&0x80) ? "dis" : " en",
112 (c1&0x80) ? "dis" : " en");
113 p += sprintf(p, "--------------- drive0 --------- drive1 "
114 "-------- drive0 ---------- drive1 ------\n");
115 p += sprintf(p, "DMA enabled: %s %s"
117 (c0&0x20) ? "yes" : "no ",
118 (c0&0x40) ? "yes" : "no ",
119 (c1&0x20) ? "yes" : "no ",
120 (c1&0x40) ? "yes" : "no " );
121 p += sprintf(p, "UDMA enabled: %s %s"
123 (reg54 & 0x01) ? "yes" : "no ",
124 (reg54 & 0x02) ? "yes" : "no ",
125 (reg54 & 0x04) ? "yes" : "no ",
126 (reg54 & 0x08) ? "yes" : "no " );
127 p += sprintf(p, "UDMA enabled: %s %s"
129 ((reg56&0x0005)==0x0005)?"5":
130 ((reg56&0x0004)==0x0004)?"4":
131 ((reg56&0x0003)==0x0003)?"3":
132 ((reg56&0x0002)==0x0002)?"2":
133 ((reg56&0x0001)==0x0001)?"1":
134 ((reg56&0x000F))?"?":"0",
135 ((reg56&0x0050)==0x0050)?"5":
136 ((reg56&0x0040)==0x0040)?"4":
137 ((reg56&0x0030)==0x0030)?"3":
138 ((reg56&0x0020)==0x0020)?"2":
139 ((reg56&0x0010)==0x0010)?"1":
140 ((reg56&0x00F0))?"?":"0",
141 ((reg56&0x0500)==0x0500)?"5":
142 ((reg56&0x0400)==0x0400)?"4":
143 ((reg56&0x0300)==0x0300)?"3":
144 ((reg56&0x0200)==0x0200)?"2":
145 ((reg56&0x0100)==0x0100)?"1":
146 ((reg56&0x0F00))?"?":"0",
147 ((reg56&0x5000)==0x5000)?"5":
148 ((reg56&0x4000)==0x4000)?"4":
149 ((reg56&0x3000)==0x3000)?"3":
150 ((reg56&0x2000)==0x2000)?"2":
151 ((reg56&0x1000)==0x1000)?"1":
152 ((reg56&0xF000))?"?":"0");
153 p += sprintf(p, "DMA enabled: %s %s"
155 ((reg44&0x00002000)==0x00002000)?"2":
156 ((reg44&0x00002100)==0x00002100)?"1":
157 ((reg44&0x00007700)==0x00007700)?"0":
158 ((reg44&0x0000FF00)==0x0000FF00)?"X":"?",
159 ((reg44&0x00000020)==0x00000020)?"2":
160 ((reg44&0x00000021)==0x00000021)?"1":
161 ((reg44&0x00000077)==0x00000077)?"0":
162 ((reg44&0x000000FF)==0x000000FF)?"X":"?",
163 ((reg44&0x20000000)==0x20000000)?"2":
164 ((reg44&0x21000000)==0x21000000)?"1":
165 ((reg44&0x77000000)==0x77000000)?"0":
166 ((reg44&0xFF000000)==0xFF000000)?"X":"?",
167 ((reg44&0x00200000)==0x00200000)?"2":
168 ((reg44&0x00210000)==0x00210000)?"1":
169 ((reg44&0x00770000)==0x00770000)?"0":
170 ((reg44&0x00FF0000)==0x00FF0000)?"X":"?");
172 p += sprintf(p, "PIO enabled: %s %s"
174 ((reg40&0x00002000)==0x00002000)?"4":
175 ((reg40&0x00002200)==0x00002200)?"3":
176 ((reg40&0x00003400)==0x00003400)?"2":
177 ((reg40&0x00004700)==0x00004700)?"1":
178 ((reg40&0x00005D00)==0x00005D00)?"0":"?",
179 ((reg40&0x00000020)==0x00000020)?"4":
180 ((reg40&0x00000022)==0x00000022)?"3":
181 ((reg40&0x00000034)==0x00000034)?"2":
182 ((reg40&0x00000047)==0x00000047)?"1":
183 ((reg40&0x0000005D)==0x0000005D)?"0":"?",
184 ((reg40&0x20000000)==0x20000000)?"4":
185 ((reg40&0x22000000)==0x22000000)?"3":
186 ((reg40&0x34000000)==0x34000000)?"2":
187 ((reg40&0x47000000)==0x47000000)?"1":
188 ((reg40&0x5D000000)==0x5D000000)?"0":"?",
189 ((reg40&0x00200000)==0x00200000)?"4":
190 ((reg40&0x00220000)==0x00220000)?"3":
191 ((reg40&0x00340000)==0x00340000)?"2":
192 ((reg40&0x00470000)==0x00470000)?"1":
193 ((reg40&0x005D0000)==0x005D0000)?"0":"?");
196 p += sprintf(p, "\n");
198 /* p - buffer must be less than 4k! */
199 len = (p - buffer) - offset;
200 *addr = buffer + offset;
202 return len > count ? count : len;
204 #endif /* defined(DISPLAY_SVWKS_TIMINGS) && defined(CONFIG_PROC_FS) */
206 static int check_in_drive_lists (ide_drive_t *drive, const char **list)
209 if (!strcmp(*list++, drive->id->model))
214 static u8 svwks_ratemask (ide_drive_t *drive)
216 struct pci_dev *dev = HWIF(drive)->pci_dev;
220 pci_read_config_byte(dev, PCI_REVISION_ID, &svwks_revision);
222 if (dev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4IDE) {
225 pci_read_config_dword(isa_dev, 0x64, ®);
228 * Don't enable UDMA on disk devices for the moment
230 if(drive->media == ide_disk)
232 /* Check the OSB4 DMA33 enable bit */
233 return ((reg & 0x00004000) == 0x00004000) ? 1 : 0;
234 } else if (svwks_revision < SVWKS_CSB5_REVISION_NEW) {
236 } else if (svwks_revision >= SVWKS_CSB5_REVISION_NEW) {
238 pci_read_config_byte(dev, 0x5A, &btr);
240 if (!eighty_ninty_three(drive))
241 mode = min(mode, (u8)1);
242 /* If someone decides to do UDMA133 on CSB5 the same
243 issue will bite so be inclusive */
244 if (mode > 2 && check_in_drive_lists(drive, svwks_bad_ata100))
247 if (((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) ||
248 (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) &&
249 (!(PCI_FUNC(dev->devfn) & 1)))
254 static u8 svwks_csb_check (struct pci_dev *dev)
256 switch (dev->device) {
257 case PCI_DEVICE_ID_SERVERWORKS_CSB5IDE:
258 case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE:
259 case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2:
266 static int svwks_tune_chipset (ide_drive_t *drive, u8 xferspeed)
268 u8 udma_modes[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05 };
269 u8 dma_modes[] = { 0x77, 0x21, 0x20 };
270 u8 pio_modes[] = { 0x5d, 0x47, 0x34, 0x22, 0x20 };
271 u8 drive_pci[] = { 0x41, 0x40, 0x43, 0x42 };
272 u8 drive_pci2[] = { 0x45, 0x44, 0x47, 0x46 };
274 ide_hwif_t *hwif = HWIF(drive);
275 struct pci_dev *dev = hwif->pci_dev;
276 u8 speed = ide_rate_filter(svwks_ratemask(drive), xferspeed);
277 u8 pio = ide_get_best_pio_mode(drive, 255, 5, NULL);
278 u8 unit = (drive->select.b.unit & 0x01);
279 u8 csb5 = svwks_csb_check(dev);
280 u8 ultra_enable = 0, ultra_timing = 0;
281 u8 dma_timing = 0, pio_timing = 0;
284 /* If we are about to put a disk into UDMA mode we screwed up.
285 Our code assumes we never _ever_ do this on an OSB4 */
287 if(dev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4 &&
288 drive->media == ide_disk && speed >= XFER_UDMA_0)
291 pci_read_config_byte(dev, drive_pci[drive->dn], &pio_timing);
292 pci_read_config_byte(dev, drive_pci2[drive->dn], &dma_timing);
293 pci_read_config_byte(dev, (0x56|hwif->channel), &ultra_timing);
294 pci_read_config_word(dev, 0x4A, &csb5_pio);
295 pci_read_config_byte(dev, 0x54, &ultra_enable);
297 /* Per Specified Design by OEM, and ASIC Architect */
298 if ((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) ||
299 (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) {
300 if (!drive->init_speed) {
301 u8 dma_stat = hwif->INB(hwif->dma_status);
304 if (((ultra_enable << (7-drive->dn) & 0x80) == 0x80) &&
305 ((dma_stat & (1<<(5+unit))) == (1<<(5+unit)))) {
306 drive->current_speed = drive->init_speed = XFER_UDMA_0 + udma_modes[(ultra_timing >> (4*unit)) & ~(0xF0)];
308 } else if ((dma_timing) &&
309 ((dma_stat&(1<<(5+unit)))==(1<<(5+unit)))) {
310 u8 dmaspeed = dma_timing;
313 if ((dmaspeed & 0x20) == 0x20)
314 dmaspeed = XFER_MW_DMA_2;
315 else if ((dmaspeed & 0x21) == 0x21)
316 dmaspeed = XFER_MW_DMA_1;
317 else if ((dmaspeed & 0x77) == 0x77)
318 dmaspeed = XFER_MW_DMA_0;
321 drive->current_speed = drive->init_speed = dmaspeed;
323 } else if (pio_timing) {
324 u8 piospeed = pio_timing;
327 if ((piospeed & 0x20) == 0x20)
328 piospeed = XFER_PIO_4;
329 else if ((piospeed & 0x22) == 0x22)
330 piospeed = XFER_PIO_3;
331 else if ((piospeed & 0x34) == 0x34)
332 piospeed = XFER_PIO_2;
333 else if ((piospeed & 0x47) == 0x47)
334 piospeed = XFER_PIO_1;
335 else if ((piospeed & 0x5d) == 0x5d)
336 piospeed = XFER_PIO_0;
338 goto oem_setup_failed;
339 drive->current_speed = drive->init_speed = piospeed;
349 ultra_timing &= ~(0x0F << (4*unit));
350 ultra_enable &= ~(0x01 << drive->dn);
351 csb5_pio &= ~(0x0F << (4*drive->dn));
359 pio_timing |= pio_modes[speed - XFER_PIO_0];
360 csb5_pio |= ((speed - XFER_PIO_0) << (4*drive->dn));
366 pio_timing |= pio_modes[pio];
367 csb5_pio |= (pio << (4*drive->dn));
368 dma_timing |= dma_modes[speed - XFER_MW_DMA_0];
377 pio_timing |= pio_modes[pio];
378 csb5_pio |= (pio << (4*drive->dn));
379 dma_timing |= dma_modes[2];
380 ultra_timing |= ((udma_modes[speed - XFER_UDMA_0]) << (4*unit));
381 ultra_enable |= (0x01 << drive->dn);
386 pci_write_config_byte(dev, drive_pci[drive->dn], pio_timing);
388 pci_write_config_word(dev, 0x4A, csb5_pio);
390 pci_write_config_byte(dev, drive_pci2[drive->dn], dma_timing);
391 pci_write_config_byte(dev, (0x56|hwif->channel), ultra_timing);
392 pci_write_config_byte(dev, 0x54, ultra_enable);
394 return (ide_config_drive_speed(drive, speed));
397 static void config_chipset_for_pio (ide_drive_t *drive)
399 u16 eide_pio_timing[6] = {960, 480, 240, 180, 120, 90};
400 u16 xfer_pio = drive->id->eide_pio_modes;
401 u8 timing, speed, pio;
403 pio = ide_get_best_pio_mode(drive, 255, 5, NULL);
408 if (drive->id->eide_pio_iordy > 0)
411 drive->id->eide_pio_iordy>eide_pio_timing[xfer_pio];
414 xfer_pio = (drive->id->eide_pio_modes & 4) ? 0x05 :
415 (drive->id->eide_pio_modes & 2) ? 0x04 :
416 (drive->id->eide_pio_modes & 1) ? 0x03 :
417 (drive->id->tPIO & 2) ? 0x02 :
418 (drive->id->tPIO & 1) ? 0x01 : xfer_pio;
420 timing = (xfer_pio >= pio) ? xfer_pio : pio;
423 case 4: speed = XFER_PIO_4;break;
424 case 3: speed = XFER_PIO_3;break;
425 case 2: speed = XFER_PIO_2;break;
426 case 1: speed = XFER_PIO_1;break;
428 speed = (!drive->id->tPIO) ? XFER_PIO_0 : XFER_PIO_SLOW;
431 (void) svwks_tune_chipset(drive, speed);
432 drive->current_speed = speed;
435 static void svwks_tune_drive (ide_drive_t *drive, u8 pio)
438 (void) svwks_tune_chipset(drive, 255);
440 (void) svwks_tune_chipset(drive, (XFER_PIO_0 + pio));
443 static int config_chipset_for_dma (ide_drive_t *drive)
445 u8 speed = ide_dma_speed(drive, svwks_ratemask(drive));
448 speed = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, 5, NULL);
450 (void) svwks_tune_chipset(drive, speed);
451 return ide_dma_enable(drive);
454 static int svwks_config_drive_xfer_rate (ide_drive_t *drive)
456 ide_hwif_t *hwif = HWIF(drive);
457 struct hd_driveid *id = drive->id;
459 drive->init_speed = 0;
461 if ((id->capability & 1) && drive->autodma) {
462 /* Consult the list of known "bad" drives */
463 if (hwif->ide_dma_bad_drive(drive))
465 if (id->field_valid & 4) {
466 if (id->dma_ultra & hwif->ultra_mask) {
467 /* Force if Capable UltraDMA */
468 int dma = config_chipset_for_dma(drive);
469 if ((id->field_valid & 2) && !dma)
472 } else if (id->field_valid & 2) {
474 if ((id->dma_mword & hwif->mwdma_mask) ||
475 (id->dma_1word & hwif->swdma_mask)) {
476 /* Force if Capable regular DMA modes */
477 if (!config_chipset_for_dma(drive))
480 } else if (hwif->ide_dma_good_drive(drive) &&
481 (id->eide_dma_time < 150)) {
482 /* Consult the list of known "good" drives */
483 if (!config_chipset_for_dma(drive))
488 } else if ((id->capability & 8) || (id->field_valid & 2)) {
491 config_chipset_for_pio(drive);
492 // hwif->tuneproc(drive, 5);
493 return hwif->ide_dma_off_quietly(drive);
495 return hwif->ide_dma_on(drive);
498 /* This can go soon */
500 static int svwks_ide_dma_end (ide_drive_t *drive)
502 return __ide_dma_end(drive);
505 static unsigned int __init init_chipset_svwks (struct pci_dev *dev, const char *name)
510 /* save revision id to determine DMA capability */
511 pci_read_config_byte(dev, PCI_REVISION_ID, &svwks_revision);
513 /* force Master Latency Timer value to 64 PCICLKs */
514 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x40);
516 /* OSB4 : South Bridge and IDE */
517 if (dev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4IDE) {
518 isa_dev = pci_find_device(PCI_VENDOR_ID_SERVERWORKS,
519 PCI_DEVICE_ID_SERVERWORKS_OSB4, NULL);
521 pci_read_config_dword(isa_dev, 0x64, ®);
522 reg &= ~0x00002000; /* disable 600ns interrupt mask */
523 if(!(reg & 0x00004000))
524 printk(KERN_DEBUG "%s: UDMA not BIOS enabled.\n", name);
525 reg |= 0x00004000; /* enable UDMA/33 support */
526 pci_write_config_dword(isa_dev, 0x64, reg);
530 /* setup CSB5/CSB6 : South Bridge and IDE option RAID */
531 else if ((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE) ||
532 (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) ||
533 (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) {
534 // u32 pioreg = 0, dmareg = 0;
536 /* Third Channel Test */
537 if (!(PCI_FUNC(dev->devfn) & 1)) {
539 struct pci_dev * findev = NULL;
541 findev = pci_find_device(PCI_VENDOR_ID_SERVERWORKS,
542 PCI_DEVICE_ID_SERVERWORKS_CSB5, NULL);
544 pci_read_config_dword(findev, 0x4C, ®4c);
545 reg4c &= ~0x000007FF;
548 pci_write_config_dword(findev, 0x4C, reg4c);
551 outb_p(0x06, 0x0c00);
552 dev->irq = inb_p(0x0c01);
554 /* WE need to figure out how to get the correct one */
555 printk("%s: interrupt %d\n", name, dev->irq);
556 if (dev->irq != 0x0B)
560 printk("%s: device class (0x%04x)\n",
563 if ((dev->class >> 8) != PCI_CLASS_STORAGE_IDE) {
564 dev->class &= ~0x000F0F00;
565 // dev->class |= ~0x00000400;
566 dev->class |= ~0x00010100;
571 struct pci_dev * findev = NULL;
574 findev = pci_find_device(PCI_VENDOR_ID_SERVERWORKS,
575 PCI_DEVICE_ID_SERVERWORKS_CSB6, NULL);
577 pci_read_config_byte(findev, 0x41, ®41);
579 pci_write_config_byte(findev, 0x41, reg41);
582 * This is a device pin issue on CSB6.
583 * Since there will be a future raid mode,
584 * early versions of the chipset require the
585 * interrupt pin to be set, and it is a compatibility
590 // pci_read_config_dword(dev, 0x40, &pioreg)
591 // pci_write_config_dword(dev, 0x40, 0x99999999);
592 // pci_read_config_dword(dev, 0x44, &dmareg);
593 // pci_write_config_dword(dev, 0x44, 0xFFFFFFFF);
594 /* setup the UDMA Control register
596 * 1. clear bit 6 to enable DMA
597 * 2. enable DMA modes with bits 0-1
601 * 11 : udma2/udma4/udma5
603 pci_read_config_byte(dev, 0x5A, &btr);
605 if (!(PCI_FUNC(dev->devfn) & 1))
608 btr |= (svwks_revision >= SVWKS_CSB5_REVISION_NEW) ? 0x3 : 0x2;
609 pci_write_config_byte(dev, 0x5A, btr);
613 #if defined(DISPLAY_SVWKS_TIMINGS) && defined(CONFIG_PROC_FS)
614 svwks_devs[n_svwks_devs++] = dev;
618 ide_pci_register_host_proc(&svwks_procs[0]);
620 #endif /* DISPLAY_SVWKS_TIMINGS && CONFIG_PROC_FS */
622 return (dev->irq) ? dev->irq : 0;
625 static unsigned int __init ata66_svwks_svwks (ide_hwif_t *hwif)
630 /* On Dell PowerEdge servers with a CSB5/CSB6, the top two bits
631 * of the subsystem device ID indicate presence of an 80-pin cable.
632 * Bit 15 clear = secondary IDE channel does not have 80-pin cable.
633 * Bit 15 set = secondary IDE channel has 80-pin cable.
634 * Bit 14 clear = primary IDE channel does not have 80-pin cable.
635 * Bit 14 set = primary IDE channel has 80-pin cable.
637 static unsigned int __init ata66_svwks_dell (ide_hwif_t *hwif)
639 struct pci_dev *dev = hwif->pci_dev;
640 if (dev->subsystem_vendor == PCI_VENDOR_ID_DELL &&
641 dev->vendor == PCI_VENDOR_ID_SERVERWORKS &&
642 (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE ||
643 dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE))
644 return ((1 << (hwif->channel + 14)) &
645 dev->subsystem_device) ? 1 : 0;
649 /* Sun Cobalt Alpine hardware avoids the 80-pin cable
650 * detect issue by attaching the drives directly to the board.
651 * This check follows the Dell precedent (how scary is that?!)
653 * WARNING: this only works on Alpine hardware!
655 static unsigned int __init ata66_svwks_cobalt (ide_hwif_t *hwif)
657 struct pci_dev *dev = hwif->pci_dev;
658 if (dev->subsystem_vendor == PCI_VENDOR_ID_SUN &&
659 dev->vendor == PCI_VENDOR_ID_SERVERWORKS &&
660 dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE)
661 return ((1 << (hwif->channel + 14)) &
662 dev->subsystem_device) ? 1 : 0;
666 static unsigned int __init ata66_svwks (ide_hwif_t *hwif)
668 struct pci_dev *dev = hwif->pci_dev;
670 /* Per Specified Design by OEM, and ASIC Architect */
671 if ((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) ||
672 (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2))
676 if (dev->subsystem_vendor == PCI_VENDOR_ID_SERVERWORKS)
677 return ata66_svwks_svwks (hwif);
680 if (dev->subsystem_vendor == PCI_VENDOR_ID_DELL)
681 return ata66_svwks_dell (hwif);
684 if (dev->subsystem_vendor == PCI_VENDOR_ID_SUN)
685 return ata66_svwks_cobalt (hwif);
691 static void __init init_hwif_svwks (ide_hwif_t *hwif)
696 hwif->irq = hwif->channel ? 15 : 14;
698 hwif->tuneproc = &svwks_tune_drive;
699 hwif->speedproc = &svwks_tune_chipset;
703 if (hwif->pci_dev->device != PCI_DEVICE_ID_SERVERWORKS_OSB4IDE)
704 hwif->ultra_mask = 0x3f;
706 hwif->mwdma_mask = 0x07;
708 hwif->swdma_mask = 0x07;
709 #endif /* CAN_SW_DMA */
713 if (!hwif->dma_base) {
714 hwif->drives[0].autotune = 1;
715 hwif->drives[1].autotune = 1;
719 hwif->ide_dma_check = &svwks_config_drive_xfer_rate;
720 if (hwif->pci_dev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4IDE)
721 hwif->ide_dma_end = &svwks_ide_dma_end;
722 else if (!(hwif->udma_four))
723 hwif->udma_four = ata66_svwks(hwif);
727 dma_stat = hwif->INB(hwif->dma_status);
728 hwif->drives[0].autodma = (dma_stat & 0x20);
729 hwif->drives[1].autodma = (dma_stat & 0x40);
730 hwif->drives[0].autotune = (!(dma_stat & 0x20));
731 hwif->drives[1].autotune = (!(dma_stat & 0x40));
732 // hwif->drives[0].autodma = hwif->autodma;
733 // hwif->drives[1].autodma = hwif->autodma;
737 * We allow the BM-DMA driver to only work on enabled interfaces.
739 static void __init init_dma_svwks (ide_hwif_t *hwif, unsigned long dmabase)
741 struct pci_dev *dev = hwif->pci_dev;
743 if (((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) ||
744 (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) &&
745 (!(PCI_FUNC(dev->devfn) & 1)) && (hwif->channel))
748 ide_setup_dma(hwif, dmabase, 8);
751 extern void ide_setup_pci_device(struct pci_dev *, ide_pci_device_t *);
753 static void __init init_setup_svwks (struct pci_dev *dev, ide_pci_device_t *d)
755 ide_setup_pci_device(dev, d);
758 static void __init init_setup_csb6 (struct pci_dev *dev, ide_pci_device_t *d)
760 if (!(PCI_FUNC(dev->devfn) & 1)) {
761 d->bootable = NEVER_BOARD;
762 if (dev->resource[0].start == 0x01f1)
763 d->bootable = ON_BOARD;
765 if ((dev->class >> 8) != PCI_CLASS_STORAGE_IDE)
769 if ((IDE_PCI_DEVID_EQ(d->devid, DEVID_CSB6) &&
770 (!(PCI_FUNC(dev->devfn) & 1)))
771 d->autodma = AUTODMA;
774 d->channels = (((d->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) ||
775 (d->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) &&
776 (!(PCI_FUNC(dev->devfn) & 1))) ? 1 : 2;
778 ide_setup_pci_device(dev, d);
783 * svwks_init_one - called when a OSB/CSB is found
784 * @dev: the svwks device
785 * @id: the matching pci id
787 * Called when the PCI registration layer (or the IDE initialization)
788 * finds a device matching our IDE device tables.
791 static int __devinit svwks_init_one(struct pci_dev *dev, const struct pci_device_id *id)
793 ide_pci_device_t *d = &serverworks_chipsets[id->driver_data];
795 if (dev->device != d->device)
797 d->init_setup(dev, d);
802 static struct pci_device_id svwks_pci_tbl[] = {
803 { PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_OSB4IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
804 { PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
805 { PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB6IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
806 { PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
810 static struct pci_driver driver = {
811 .name = "Serverworks IDE",
812 .id_table = svwks_pci_tbl,
813 .probe = svwks_init_one,
814 #if 0 /* FIXME: implement */
820 static int svwks_ide_init(void)
822 return ide_pci_register_driver(&driver);
825 static void svwks_ide_exit(void)
827 ide_pci_unregister_driver(&driver);
830 module_init(svwks_ide_init);
831 module_exit(svwks_ide_exit);
833 MODULE_AUTHOR("Michael Aubry. Andrzej Krzysztofowicz, Andre Hedrick");
834 MODULE_DESCRIPTION("PCI driver module for Serverworks OSB4/CSB5/CSB6 IDE");
835 MODULE_LICENSE("GPL");