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1da177e4 LT |
1 | /* |
2 | * linux/drivers/ide/pci/serverworks.c Version 0.8 25 Ebr 2003 | |
3 | * | |
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 | |
8 | * | |
9 | * | |
10 | * RCC/ServerWorks IDE driver for Linux | |
11 | * | |
12 | * OSB4: `Open South Bridge' IDE Interface (fn 1) | |
13 | * supports UDMA mode 2 (33 MB/s) | |
14 | * | |
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) | |
18 | * | |
19 | * *** The CSB5 does not provide ANY register *** | |
20 | * *** to detect 80-conductor cable presence. *** | |
21 | * | |
22 | * CSB6: `Champion South Bridge' IDE Interface (optional: third channel) | |
23 | * | |
84f57fbc NS |
24 | * HT1000: AKA BCM5785 - Hypertransport Southbridge for Opteron systems. IDE |
25 | * controller same as the CSB6. Single channel ATA100 only. | |
26 | * | |
1da177e4 LT |
27 | * Documentation: |
28 | * Available under NDA only. Errata info very hard to get. | |
29 | * | |
30 | */ | |
31 | ||
32 | #include <linux/config.h> | |
33 | #include <linux/types.h> | |
34 | #include <linux/module.h> | |
35 | #include <linux/kernel.h> | |
36 | #include <linux/ioport.h> | |
37 | #include <linux/pci.h> | |
38 | #include <linux/hdreg.h> | |
39 | #include <linux/ide.h> | |
40 | #include <linux/init.h> | |
41 | #include <linux/delay.h> | |
42 | ||
43 | #include <asm/io.h> | |
44 | ||
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 | static const char *svwks_bad_ata100[] = { | |
51 | "ST320011A", | |
52 | "ST340016A", | |
53 | "ST360021A", | |
54 | "ST380021A", | |
55 | NULL | |
56 | }; | |
57 | ||
58 | static u8 svwks_revision = 0; | |
59 | static struct pci_dev *isa_dev; | |
60 | ||
61 | static int check_in_drive_lists (ide_drive_t *drive, const char **list) | |
62 | { | |
63 | while (*list) | |
64 | if (!strcmp(*list++, drive->id->model)) | |
65 | return 1; | |
66 | return 0; | |
67 | } | |
68 | ||
69 | static u8 svwks_ratemask (ide_drive_t *drive) | |
70 | { | |
71 | struct pci_dev *dev = HWIF(drive)->pci_dev; | |
6d524aed | 72 | u8 mode = 0; |
1da177e4 LT |
73 | |
74 | if (!svwks_revision) | |
75 | pci_read_config_byte(dev, PCI_REVISION_ID, &svwks_revision); | |
76 | ||
84f57fbc NS |
77 | if (dev->device == PCI_DEVICE_ID_SERVERWORKS_HT1000IDE) |
78 | return 2; | |
1da177e4 LT |
79 | if (dev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4IDE) { |
80 | u32 reg = 0; | |
81 | if (isa_dev) | |
82 | pci_read_config_dword(isa_dev, 0x64, ®); | |
83 | ||
84 | /* | |
85 | * Don't enable UDMA on disk devices for the moment | |
86 | */ | |
87 | if(drive->media == ide_disk) | |
88 | return 0; | |
89 | /* Check the OSB4 DMA33 enable bit */ | |
90 | return ((reg & 0x00004000) == 0x00004000) ? 1 : 0; | |
91 | } else if (svwks_revision < SVWKS_CSB5_REVISION_NEW) { | |
92 | return 1; | |
93 | } else if (svwks_revision >= SVWKS_CSB5_REVISION_NEW) { | |
94 | u8 btr = 0; | |
95 | pci_read_config_byte(dev, 0x5A, &btr); | |
96 | mode = btr & 0x3; | |
97 | if (!eighty_ninty_three(drive)) | |
98 | mode = min(mode, (u8)1); | |
99 | /* If someone decides to do UDMA133 on CSB5 the same | |
100 | issue will bite so be inclusive */ | |
101 | if (mode > 2 && check_in_drive_lists(drive, svwks_bad_ata100)) | |
102 | mode = 2; | |
103 | } | |
104 | if (((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) || | |
105 | (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) && | |
106 | (!(PCI_FUNC(dev->devfn) & 1))) | |
107 | mode = 2; | |
108 | return mode; | |
109 | } | |
110 | ||
111 | static u8 svwks_csb_check (struct pci_dev *dev) | |
112 | { | |
113 | switch (dev->device) { | |
114 | case PCI_DEVICE_ID_SERVERWORKS_CSB5IDE: | |
115 | case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE: | |
116 | case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2: | |
84f57fbc | 117 | case PCI_DEVICE_ID_SERVERWORKS_HT1000IDE: |
1da177e4 LT |
118 | return 1; |
119 | default: | |
120 | break; | |
121 | } | |
122 | return 0; | |
123 | } | |
124 | static int svwks_tune_chipset (ide_drive_t *drive, u8 xferspeed) | |
125 | { | |
126 | u8 udma_modes[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05 }; | |
127 | u8 dma_modes[] = { 0x77, 0x21, 0x20 }; | |
128 | u8 pio_modes[] = { 0x5d, 0x47, 0x34, 0x22, 0x20 }; | |
129 | u8 drive_pci[] = { 0x41, 0x40, 0x43, 0x42 }; | |
130 | u8 drive_pci2[] = { 0x45, 0x44, 0x47, 0x46 }; | |
131 | ||
132 | ide_hwif_t *hwif = HWIF(drive); | |
133 | struct pci_dev *dev = hwif->pci_dev; | |
134 | u8 speed; | |
135 | u8 pio = ide_get_best_pio_mode(drive, 255, 5, NULL); | |
136 | u8 unit = (drive->select.b.unit & 0x01); | |
137 | u8 csb5 = svwks_csb_check(dev); | |
138 | u8 ultra_enable = 0, ultra_timing = 0; | |
139 | u8 dma_timing = 0, pio_timing = 0; | |
140 | u16 csb5_pio = 0; | |
141 | ||
142 | if (xferspeed == 255) /* PIO auto-tuning */ | |
143 | speed = XFER_PIO_0 + pio; | |
144 | else | |
145 | speed = ide_rate_filter(svwks_ratemask(drive), xferspeed); | |
146 | ||
147 | /* If we are about to put a disk into UDMA mode we screwed up. | |
148 | Our code assumes we never _ever_ do this on an OSB4 */ | |
149 | ||
150 | if(dev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4 && | |
151 | drive->media == ide_disk && speed >= XFER_UDMA_0) | |
152 | BUG(); | |
153 | ||
154 | pci_read_config_byte(dev, drive_pci[drive->dn], &pio_timing); | |
155 | pci_read_config_byte(dev, drive_pci2[drive->dn], &dma_timing); | |
156 | pci_read_config_byte(dev, (0x56|hwif->channel), &ultra_timing); | |
157 | pci_read_config_word(dev, 0x4A, &csb5_pio); | |
158 | pci_read_config_byte(dev, 0x54, &ultra_enable); | |
159 | ||
160 | /* Per Specified Design by OEM, and ASIC Architect */ | |
161 | if ((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) || | |
162 | (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) { | |
163 | if (!drive->init_speed) { | |
164 | u8 dma_stat = hwif->INB(hwif->dma_status); | |
165 | ||
166 | dma_pio: | |
167 | if (((ultra_enable << (7-drive->dn) & 0x80) == 0x80) && | |
168 | ((dma_stat & (1<<(5+unit))) == (1<<(5+unit)))) { | |
169 | drive->current_speed = drive->init_speed = XFER_UDMA_0 + udma_modes[(ultra_timing >> (4*unit)) & ~(0xF0)]; | |
170 | return 0; | |
171 | } else if ((dma_timing) && | |
172 | ((dma_stat&(1<<(5+unit)))==(1<<(5+unit)))) { | |
173 | u8 dmaspeed = dma_timing; | |
174 | ||
175 | dma_timing &= ~0xFF; | |
176 | if ((dmaspeed & 0x20) == 0x20) | |
177 | dmaspeed = XFER_MW_DMA_2; | |
178 | else if ((dmaspeed & 0x21) == 0x21) | |
179 | dmaspeed = XFER_MW_DMA_1; | |
180 | else if ((dmaspeed & 0x77) == 0x77) | |
181 | dmaspeed = XFER_MW_DMA_0; | |
182 | else | |
183 | goto dma_pio; | |
184 | drive->current_speed = drive->init_speed = dmaspeed; | |
185 | return 0; | |
186 | } else if (pio_timing) { | |
187 | u8 piospeed = pio_timing; | |
188 | ||
189 | pio_timing &= ~0xFF; | |
190 | if ((piospeed & 0x20) == 0x20) | |
191 | piospeed = XFER_PIO_4; | |
192 | else if ((piospeed & 0x22) == 0x22) | |
193 | piospeed = XFER_PIO_3; | |
194 | else if ((piospeed & 0x34) == 0x34) | |
195 | piospeed = XFER_PIO_2; | |
196 | else if ((piospeed & 0x47) == 0x47) | |
197 | piospeed = XFER_PIO_1; | |
198 | else if ((piospeed & 0x5d) == 0x5d) | |
199 | piospeed = XFER_PIO_0; | |
200 | else | |
201 | goto oem_setup_failed; | |
202 | drive->current_speed = drive->init_speed = piospeed; | |
203 | return 0; | |
204 | } | |
205 | } | |
206 | } | |
207 | ||
208 | oem_setup_failed: | |
209 | ||
210 | pio_timing &= ~0xFF; | |
211 | dma_timing &= ~0xFF; | |
212 | ultra_timing &= ~(0x0F << (4*unit)); | |
213 | ultra_enable &= ~(0x01 << drive->dn); | |
214 | csb5_pio &= ~(0x0F << (4*drive->dn)); | |
215 | ||
216 | switch(speed) { | |
217 | case XFER_PIO_4: | |
218 | case XFER_PIO_3: | |
219 | case XFER_PIO_2: | |
220 | case XFER_PIO_1: | |
221 | case XFER_PIO_0: | |
222 | pio_timing |= pio_modes[speed - XFER_PIO_0]; | |
223 | csb5_pio |= ((speed - XFER_PIO_0) << (4*drive->dn)); | |
224 | break; | |
225 | ||
226 | case XFER_MW_DMA_2: | |
227 | case XFER_MW_DMA_1: | |
228 | case XFER_MW_DMA_0: | |
229 | pio_timing |= pio_modes[pio]; | |
230 | csb5_pio |= (pio << (4*drive->dn)); | |
231 | dma_timing |= dma_modes[speed - XFER_MW_DMA_0]; | |
232 | break; | |
233 | ||
234 | case XFER_UDMA_5: | |
235 | case XFER_UDMA_4: | |
236 | case XFER_UDMA_3: | |
237 | case XFER_UDMA_2: | |
238 | case XFER_UDMA_1: | |
239 | case XFER_UDMA_0: | |
240 | pio_timing |= pio_modes[pio]; | |
241 | csb5_pio |= (pio << (4*drive->dn)); | |
242 | dma_timing |= dma_modes[2]; | |
243 | ultra_timing |= ((udma_modes[speed - XFER_UDMA_0]) << (4*unit)); | |
244 | ultra_enable |= (0x01 << drive->dn); | |
245 | default: | |
246 | break; | |
247 | } | |
248 | ||
249 | pci_write_config_byte(dev, drive_pci[drive->dn], pio_timing); | |
250 | if (csb5) | |
251 | pci_write_config_word(dev, 0x4A, csb5_pio); | |
252 | ||
253 | pci_write_config_byte(dev, drive_pci2[drive->dn], dma_timing); | |
254 | pci_write_config_byte(dev, (0x56|hwif->channel), ultra_timing); | |
255 | pci_write_config_byte(dev, 0x54, ultra_enable); | |
256 | ||
257 | return (ide_config_drive_speed(drive, speed)); | |
258 | } | |
259 | ||
260 | static void config_chipset_for_pio (ide_drive_t *drive) | |
261 | { | |
262 | u16 eide_pio_timing[6] = {960, 480, 240, 180, 120, 90}; | |
263 | u16 xfer_pio = drive->id->eide_pio_modes; | |
264 | u8 timing, speed, pio; | |
265 | ||
266 | pio = ide_get_best_pio_mode(drive, 255, 5, NULL); | |
267 | ||
268 | if (xfer_pio > 4) | |
269 | xfer_pio = 0; | |
270 | ||
271 | if (drive->id->eide_pio_iordy > 0) | |
272 | for (xfer_pio = 5; | |
273 | xfer_pio>0 && | |
274 | drive->id->eide_pio_iordy>eide_pio_timing[xfer_pio]; | |
275 | xfer_pio--); | |
276 | else | |
277 | xfer_pio = (drive->id->eide_pio_modes & 4) ? 0x05 : | |
278 | (drive->id->eide_pio_modes & 2) ? 0x04 : | |
279 | (drive->id->eide_pio_modes & 1) ? 0x03 : | |
280 | (drive->id->tPIO & 2) ? 0x02 : | |
281 | (drive->id->tPIO & 1) ? 0x01 : xfer_pio; | |
282 | ||
283 | timing = (xfer_pio >= pio) ? xfer_pio : pio; | |
284 | ||
285 | switch(timing) { | |
286 | case 4: speed = XFER_PIO_4;break; | |
287 | case 3: speed = XFER_PIO_3;break; | |
288 | case 2: speed = XFER_PIO_2;break; | |
289 | case 1: speed = XFER_PIO_1;break; | |
290 | default: | |
291 | speed = (!drive->id->tPIO) ? XFER_PIO_0 : XFER_PIO_SLOW; | |
292 | break; | |
293 | } | |
294 | (void) svwks_tune_chipset(drive, speed); | |
295 | drive->current_speed = speed; | |
296 | } | |
297 | ||
298 | static void svwks_tune_drive (ide_drive_t *drive, u8 pio) | |
299 | { | |
300 | if(pio == 255) | |
301 | (void) svwks_tune_chipset(drive, 255); | |
302 | else | |
303 | (void) svwks_tune_chipset(drive, (XFER_PIO_0 + pio)); | |
304 | } | |
305 | ||
306 | static int config_chipset_for_dma (ide_drive_t *drive) | |
307 | { | |
308 | u8 speed = ide_dma_speed(drive, svwks_ratemask(drive)); | |
309 | ||
310 | if (!(speed)) | |
311 | speed = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, 5, NULL); | |
312 | ||
313 | (void) svwks_tune_chipset(drive, speed); | |
314 | return ide_dma_enable(drive); | |
315 | } | |
316 | ||
317 | static int svwks_config_drive_xfer_rate (ide_drive_t *drive) | |
318 | { | |
319 | ide_hwif_t *hwif = HWIF(drive); | |
320 | struct hd_driveid *id = drive->id; | |
321 | ||
322 | drive->init_speed = 0; | |
323 | ||
324 | if ((id->capability & 1) && drive->autodma) { | |
325 | ||
326 | if (ide_use_dma(drive)) { | |
327 | if (config_chipset_for_dma(drive)) | |
328 | return hwif->ide_dma_on(drive); | |
329 | } | |
330 | ||
331 | goto fast_ata_pio; | |
332 | ||
333 | } else if ((id->capability & 8) || (id->field_valid & 2)) { | |
334 | fast_ata_pio: | |
335 | config_chipset_for_pio(drive); | |
336 | // hwif->tuneproc(drive, 5); | |
337 | return hwif->ide_dma_off_quietly(drive); | |
338 | } | |
339 | /* IORDY not supported */ | |
340 | return 0; | |
341 | } | |
342 | ||
343 | /* This can go soon */ | |
344 | ||
345 | static int svwks_ide_dma_end (ide_drive_t *drive) | |
346 | { | |
347 | return __ide_dma_end(drive); | |
348 | } | |
349 | ||
350 | static unsigned int __devinit init_chipset_svwks (struct pci_dev *dev, const char *name) | |
351 | { | |
352 | unsigned int reg; | |
353 | u8 btr; | |
354 | ||
355 | /* save revision id to determine DMA capability */ | |
356 | pci_read_config_byte(dev, PCI_REVISION_ID, &svwks_revision); | |
357 | ||
358 | /* force Master Latency Timer value to 64 PCICLKs */ | |
359 | pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x40); | |
360 | ||
361 | /* OSB4 : South Bridge and IDE */ | |
362 | if (dev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4IDE) { | |
363 | isa_dev = pci_find_device(PCI_VENDOR_ID_SERVERWORKS, | |
364 | PCI_DEVICE_ID_SERVERWORKS_OSB4, NULL); | |
365 | if (isa_dev) { | |
366 | pci_read_config_dword(isa_dev, 0x64, ®); | |
367 | reg &= ~0x00002000; /* disable 600ns interrupt mask */ | |
368 | if(!(reg & 0x00004000)) | |
369 | printk(KERN_DEBUG "%s: UDMA not BIOS enabled.\n", name); | |
370 | reg |= 0x00004000; /* enable UDMA/33 support */ | |
371 | pci_write_config_dword(isa_dev, 0x64, reg); | |
372 | } | |
373 | } | |
374 | ||
375 | /* setup CSB5/CSB6 : South Bridge and IDE option RAID */ | |
376 | else if ((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE) || | |
377 | (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) || | |
378 | (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) { | |
379 | ||
380 | /* Third Channel Test */ | |
381 | if (!(PCI_FUNC(dev->devfn) & 1)) { | |
382 | struct pci_dev * findev = NULL; | |
383 | u32 reg4c = 0; | |
384 | findev = pci_find_device(PCI_VENDOR_ID_SERVERWORKS, | |
385 | PCI_DEVICE_ID_SERVERWORKS_CSB5, NULL); | |
386 | if (findev) { | |
387 | pci_read_config_dword(findev, 0x4C, ®4c); | |
388 | reg4c &= ~0x000007FF; | |
389 | reg4c |= 0x00000040; | |
390 | reg4c |= 0x00000020; | |
391 | pci_write_config_dword(findev, 0x4C, reg4c); | |
392 | } | |
393 | outb_p(0x06, 0x0c00); | |
394 | dev->irq = inb_p(0x0c01); | |
395 | #if 0 | |
396 | printk("%s: device class (0x%04x)\n", | |
397 | name, dev->class); | |
398 | if ((dev->class >> 8) != PCI_CLASS_STORAGE_IDE) { | |
399 | dev->class &= ~0x000F0F00; | |
400 | // dev->class |= ~0x00000400; | |
401 | dev->class |= ~0x00010100; | |
402 | /**/ | |
403 | } | |
404 | #endif | |
405 | } else { | |
406 | struct pci_dev * findev = NULL; | |
407 | u8 reg41 = 0; | |
408 | ||
409 | findev = pci_find_device(PCI_VENDOR_ID_SERVERWORKS, | |
410 | PCI_DEVICE_ID_SERVERWORKS_CSB6, NULL); | |
411 | if (findev) { | |
412 | pci_read_config_byte(findev, 0x41, ®41); | |
413 | reg41 &= ~0x40; | |
414 | pci_write_config_byte(findev, 0x41, reg41); | |
415 | } | |
416 | /* | |
417 | * This is a device pin issue on CSB6. | |
418 | * Since there will be a future raid mode, | |
419 | * early versions of the chipset require the | |
420 | * interrupt pin to be set, and it is a compatibility | |
421 | * mode issue. | |
422 | */ | |
423 | if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE) | |
424 | dev->irq = 0; | |
425 | } | |
426 | // pci_read_config_dword(dev, 0x40, &pioreg) | |
427 | // pci_write_config_dword(dev, 0x40, 0x99999999); | |
428 | // pci_read_config_dword(dev, 0x44, &dmareg); | |
429 | // pci_write_config_dword(dev, 0x44, 0xFFFFFFFF); | |
430 | /* setup the UDMA Control register | |
431 | * | |
432 | * 1. clear bit 6 to enable DMA | |
433 | * 2. enable DMA modes with bits 0-1 | |
434 | * 00 : legacy | |
435 | * 01 : udma2 | |
436 | * 10 : udma2/udma4 | |
437 | * 11 : udma2/udma4/udma5 | |
438 | */ | |
439 | pci_read_config_byte(dev, 0x5A, &btr); | |
440 | btr &= ~0x40; | |
441 | if (!(PCI_FUNC(dev->devfn) & 1)) | |
442 | btr |= 0x2; | |
443 | else | |
444 | btr |= (svwks_revision >= SVWKS_CSB5_REVISION_NEW) ? 0x3 : 0x2; | |
445 | pci_write_config_byte(dev, 0x5A, btr); | |
446 | } | |
84f57fbc NS |
447 | /* Setup HT1000 SouthBridge Controller - Single Channel Only */ |
448 | else if (dev->device == PCI_DEVICE_ID_SERVERWORKS_HT1000IDE) { | |
449 | pci_read_config_byte(dev, 0x5A, &btr); | |
450 | btr &= ~0x40; | |
451 | btr |= 0x3; | |
452 | pci_write_config_byte(dev, 0x5A, btr); | |
453 | } | |
1da177e4 LT |
454 | |
455 | return (dev->irq) ? dev->irq : 0; | |
456 | } | |
457 | ||
bb732d7b | 458 | static unsigned int __devinit ata66_svwks_svwks (ide_hwif_t *hwif) |
1da177e4 LT |
459 | { |
460 | return 1; | |
461 | } | |
462 | ||
463 | /* On Dell PowerEdge servers with a CSB5/CSB6, the top two bits | |
464 | * of the subsystem device ID indicate presence of an 80-pin cable. | |
465 | * Bit 15 clear = secondary IDE channel does not have 80-pin cable. | |
466 | * Bit 15 set = secondary IDE channel has 80-pin cable. | |
467 | * Bit 14 clear = primary IDE channel does not have 80-pin cable. | |
468 | * Bit 14 set = primary IDE channel has 80-pin cable. | |
469 | */ | |
bb732d7b | 470 | static unsigned int __devinit ata66_svwks_dell (ide_hwif_t *hwif) |
1da177e4 LT |
471 | { |
472 | struct pci_dev *dev = hwif->pci_dev; | |
473 | if (dev->subsystem_vendor == PCI_VENDOR_ID_DELL && | |
474 | dev->vendor == PCI_VENDOR_ID_SERVERWORKS && | |
475 | (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE || | |
476 | dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE)) | |
477 | return ((1 << (hwif->channel + 14)) & | |
478 | dev->subsystem_device) ? 1 : 0; | |
479 | return 0; | |
480 | } | |
481 | ||
482 | /* Sun Cobalt Alpine hardware avoids the 80-pin cable | |
483 | * detect issue by attaching the drives directly to the board. | |
484 | * This check follows the Dell precedent (how scary is that?!) | |
485 | * | |
486 | * WARNING: this only works on Alpine hardware! | |
487 | */ | |
bb732d7b | 488 | static unsigned int __devinit ata66_svwks_cobalt (ide_hwif_t *hwif) |
1da177e4 LT |
489 | { |
490 | struct pci_dev *dev = hwif->pci_dev; | |
491 | if (dev->subsystem_vendor == PCI_VENDOR_ID_SUN && | |
492 | dev->vendor == PCI_VENDOR_ID_SERVERWORKS && | |
493 | dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE) | |
494 | return ((1 << (hwif->channel + 14)) & | |
495 | dev->subsystem_device) ? 1 : 0; | |
496 | return 0; | |
497 | } | |
498 | ||
bb732d7b | 499 | static unsigned int __devinit ata66_svwks (ide_hwif_t *hwif) |
1da177e4 LT |
500 | { |
501 | struct pci_dev *dev = hwif->pci_dev; | |
502 | ||
503 | /* Per Specified Design by OEM, and ASIC Architect */ | |
504 | if ((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) || | |
505 | (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) | |
506 | return 1; | |
507 | ||
508 | /* Server Works */ | |
509 | if (dev->subsystem_vendor == PCI_VENDOR_ID_SERVERWORKS) | |
510 | return ata66_svwks_svwks (hwif); | |
511 | ||
512 | /* Dell PowerEdge */ | |
513 | if (dev->subsystem_vendor == PCI_VENDOR_ID_DELL) | |
514 | return ata66_svwks_dell (hwif); | |
515 | ||
516 | /* Cobalt Alpine */ | |
517 | if (dev->subsystem_vendor == PCI_VENDOR_ID_SUN) | |
518 | return ata66_svwks_cobalt (hwif); | |
519 | ||
520 | return 0; | |
521 | } | |
522 | ||
523 | #undef CAN_SW_DMA | |
524 | static void __devinit init_hwif_svwks (ide_hwif_t *hwif) | |
525 | { | |
526 | u8 dma_stat = 0; | |
527 | ||
528 | if (!hwif->irq) | |
529 | hwif->irq = hwif->channel ? 15 : 14; | |
530 | ||
531 | hwif->tuneproc = &svwks_tune_drive; | |
532 | hwif->speedproc = &svwks_tune_chipset; | |
533 | ||
534 | hwif->atapi_dma = 1; | |
535 | ||
536 | if (hwif->pci_dev->device != PCI_DEVICE_ID_SERVERWORKS_OSB4IDE) | |
537 | hwif->ultra_mask = 0x3f; | |
538 | ||
539 | hwif->mwdma_mask = 0x07; | |
540 | #ifdef CAN_SW_DMA | |
541 | hwif->swdma_mask = 0x07; | |
542 | #endif /* CAN_SW_DMA */ | |
543 | ||
544 | hwif->autodma = 0; | |
545 | ||
546 | if (!hwif->dma_base) { | |
547 | hwif->drives[0].autotune = 1; | |
548 | hwif->drives[1].autotune = 1; | |
549 | return; | |
550 | } | |
551 | ||
552 | hwif->ide_dma_check = &svwks_config_drive_xfer_rate; | |
553 | if (hwif->pci_dev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4IDE) | |
554 | hwif->ide_dma_end = &svwks_ide_dma_end; | |
555 | else if (!(hwif->udma_four)) | |
556 | hwif->udma_four = ata66_svwks(hwif); | |
557 | if (!noautodma) | |
558 | hwif->autodma = 1; | |
559 | ||
560 | dma_stat = hwif->INB(hwif->dma_status); | |
561 | hwif->drives[0].autodma = (dma_stat & 0x20); | |
562 | hwif->drives[1].autodma = (dma_stat & 0x40); | |
563 | hwif->drives[0].autotune = (!(dma_stat & 0x20)); | |
564 | hwif->drives[1].autotune = (!(dma_stat & 0x40)); | |
565 | // hwif->drives[0].autodma = hwif->autodma; | |
566 | // hwif->drives[1].autodma = hwif->autodma; | |
567 | } | |
568 | ||
569 | /* | |
570 | * We allow the BM-DMA driver to only work on enabled interfaces. | |
571 | */ | |
572 | static void __devinit init_dma_svwks (ide_hwif_t *hwif, unsigned long dmabase) | |
573 | { | |
574 | struct pci_dev *dev = hwif->pci_dev; | |
575 | ||
576 | if (((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) || | |
577 | (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) && | |
578 | (!(PCI_FUNC(dev->devfn) & 1)) && (hwif->channel)) | |
579 | return; | |
580 | ||
581 | ide_setup_dma(hwif, dmabase, 8); | |
582 | } | |
583 | ||
584 | static int __devinit init_setup_svwks (struct pci_dev *dev, ide_pci_device_t *d) | |
585 | { | |
586 | return ide_setup_pci_device(dev, d); | |
587 | } | |
588 | ||
bb732d7b | 589 | static int __devinit init_setup_csb6 (struct pci_dev *dev, ide_pci_device_t *d) |
1da177e4 LT |
590 | { |
591 | if (!(PCI_FUNC(dev->devfn) & 1)) { | |
592 | d->bootable = NEVER_BOARD; | |
593 | if (dev->resource[0].start == 0x01f1) | |
594 | d->bootable = ON_BOARD; | |
595 | } | |
596 | #if 0 | |
597 | if ((IDE_PCI_DEVID_EQ(d->devid, DEVID_CSB6) && | |
598 | (!(PCI_FUNC(dev->devfn) & 1))) | |
599 | d->autodma = AUTODMA; | |
600 | #endif | |
601 | ||
602 | d->channels = ((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE || | |
603 | dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2) && | |
604 | (!(PCI_FUNC(dev->devfn) & 1))) ? 1 : 2; | |
605 | ||
606 | return ide_setup_pci_device(dev, d); | |
607 | } | |
608 | ||
609 | static ide_pci_device_t serverworks_chipsets[] __devinitdata = { | |
610 | { /* 0 */ | |
611 | .name = "SvrWks OSB4", | |
612 | .init_setup = init_setup_svwks, | |
613 | .init_chipset = init_chipset_svwks, | |
614 | .init_hwif = init_hwif_svwks, | |
615 | .channels = 2, | |
616 | .autodma = AUTODMA, | |
617 | .bootable = ON_BOARD, | |
618 | },{ /* 1 */ | |
619 | .name = "SvrWks CSB5", | |
620 | .init_setup = init_setup_svwks, | |
621 | .init_chipset = init_chipset_svwks, | |
622 | .init_hwif = init_hwif_svwks, | |
623 | .init_dma = init_dma_svwks, | |
624 | .channels = 2, | |
625 | .autodma = AUTODMA, | |
626 | .bootable = ON_BOARD, | |
627 | },{ /* 2 */ | |
628 | .name = "SvrWks CSB6", | |
629 | .init_setup = init_setup_csb6, | |
630 | .init_chipset = init_chipset_svwks, | |
631 | .init_hwif = init_hwif_svwks, | |
632 | .init_dma = init_dma_svwks, | |
633 | .channels = 2, | |
634 | .autodma = AUTODMA, | |
635 | .bootable = ON_BOARD, | |
636 | },{ /* 3 */ | |
637 | .name = "SvrWks CSB6", | |
638 | .init_setup = init_setup_csb6, | |
639 | .init_chipset = init_chipset_svwks, | |
640 | .init_hwif = init_hwif_svwks, | |
641 | .init_dma = init_dma_svwks, | |
642 | .channels = 1, /* 2 */ | |
643 | .autodma = AUTODMA, | |
644 | .bootable = ON_BOARD, | |
84f57fbc NS |
645 | },{ /* 4 */ |
646 | .name = "SvrWks HT1000", | |
647 | .init_setup = init_setup_svwks, | |
648 | .init_chipset = init_chipset_svwks, | |
649 | .init_hwif = init_hwif_svwks, | |
650 | .init_dma = init_dma_svwks, | |
651 | .channels = 1, /* 2 */ | |
652 | .autodma = AUTODMA, | |
653 | .bootable = ON_BOARD, | |
1da177e4 LT |
654 | } |
655 | }; | |
656 | ||
657 | /** | |
658 | * svwks_init_one - called when a OSB/CSB is found | |
659 | * @dev: the svwks device | |
660 | * @id: the matching pci id | |
661 | * | |
662 | * Called when the PCI registration layer (or the IDE initialization) | |
663 | * finds a device matching our IDE device tables. | |
664 | */ | |
665 | ||
666 | static int __devinit svwks_init_one(struct pci_dev *dev, const struct pci_device_id *id) | |
667 | { | |
668 | ide_pci_device_t *d = &serverworks_chipsets[id->driver_data]; | |
669 | ||
670 | return d->init_setup(dev, d); | |
671 | } | |
672 | ||
673 | static struct pci_device_id svwks_pci_tbl[] = { | |
674 | { PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_OSB4IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
675 | { PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1}, | |
676 | { PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB6IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2}, | |
677 | { PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3}, | |
84f57fbc | 678 | { PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4}, |
1da177e4 LT |
679 | { 0, }, |
680 | }; | |
681 | MODULE_DEVICE_TABLE(pci, svwks_pci_tbl); | |
682 | ||
683 | static struct pci_driver driver = { | |
684 | .name = "Serverworks_IDE", | |
685 | .id_table = svwks_pci_tbl, | |
686 | .probe = svwks_init_one, | |
687 | }; | |
688 | ||
689 | static int svwks_ide_init(void) | |
690 | { | |
691 | return ide_pci_register_driver(&driver); | |
692 | } | |
693 | ||
694 | module_init(svwks_ide_init); | |
695 | ||
696 | MODULE_AUTHOR("Michael Aubry. Andrzej Krzysztofowicz, Andre Hedrick"); | |
697 | MODULE_DESCRIPTION("PCI driver module for Serverworks OSB4/CSB5/CSB6 IDE"); | |
698 | MODULE_LICENSE("GPL"); |