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[PATCH] ARM: Fixup missing includes in arch/arm/mm/proc-<cputype>.S
[linux-2.6/kvm.git] / drivers / ide / pci / sis5513.c
blob8a6c23ac8cc1c556b0771ae5ae05ebf5f5d8c6bf
1 /*
2 * linux/drivers/ide/pci/sis5513.c Version 0.16ac+vp Jun 18, 2003
3 *
4 * Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org>
5 * Copyright (C) 2002 Lionel Bouton <Lionel.Bouton@inet6.fr>, Maintainer
6 * Copyright (C) 2003 Vojtech Pavlik <vojtech@suse.cz>
7 * May be copied or modified under the terms of the GNU General Public License
8 *
9 *
10 * Thanks :
11 *
12 * SiS Taiwan : for direct support and hardware.
13 * Daniela Engert : for initial ATA100 advices and numerous others.
14 * John Fremlin, Manfred Spraul, Dave Morgan, Peter Kjellerstedt :
15 * for checking code correctness, providing patches.
16 *
17 *
18 * Original tests and design on the SiS620 chipset.
19 * ATA100 tests and design on the SiS735 chipset.
20 * ATA16/33 support from specs
21 * ATA133 support for SiS961/962 by L.C. Chang <lcchang@sis.com.tw>
22 * ATA133 961/962/963 fixes by Vojtech Pavlik <vojtech@suse.cz>
23 *
24 * Documentation:
25 * SiS chipset documentation available under NDA to companies only
26 * (not to individuals).
27 */
28
29 /*
30 * The original SiS5513 comes from a SiS5511/55112/5513 chipset. The original
31 * SiS5513 was also used in the SiS5596/5513 chipset. Thus if we see a SiS5511
32 * or SiS5596, we can assume we see the first MWDMA-16 capable SiS5513 chip.
33 *
34 * Later SiS chipsets integrated the 5513 functionality into the NorthBridge,
35 * starting with SiS5571 and up to SiS745. The PCI ID didn't change, though. We
36 * can figure out that we have a more modern and more capable 5513 by looking
37 * for the respective NorthBridge IDs.
38 *
39 * Even later (96x family) SiS chipsets use the MuTIOL link and place the 5513
40 * into the SouthBrige. Here we cannot rely on looking up the NorthBridge PCI
41 * ID, while the now ATA-133 capable 5513 still has the same PCI ID.
42 * Fortunately the 5513 can be 'unmasked' by fiddling with some config space
43 * bits, changing its device id to the true one - 5517 for 961 and 5518 for
44 * 962/963.
45 */
46
47 #include <linux/types.h>
48 #include <linux/module.h>
49 #include <linux/kernel.h>
50 #include <linux/delay.h>
51 #include <linux/timer.h>
52 #include <linux/mm.h>
53 #include <linux/ioport.h>
54 #include <linux/blkdev.h>
55 #include <linux/hdreg.h>
56
57 #include <linux/interrupt.h>
58 #include <linux/pci.h>
59 #include <linux/init.h>
60 #include <linux/ide.h>
61
62 #include <asm/irq.h>
63
64 #include "ide-timing.h"
65
66 #define DISPLAY_SIS_TIMINGS
67
68 /* registers layout and init values are chipset family dependant */
69
70 #define ATA_16 0x01
71 #define ATA_33 0x02
72 #define ATA_66 0x03
73 #define ATA_100a 0x04 // SiS730/SiS550 is ATA100 with ATA66 layout
74 #define ATA_100 0x05
75 #define ATA_133a 0x06 // SiS961b with 133 support
76 #define ATA_133 0x07 // SiS962/963
77
78 static u8 chipset_family;
79
80 /*
81 * Devices supported
82 */
83 static const struct {
84 const char *name;
85 u16 host_id;
86 u8 chipset_family;
87 u8 flags;
88 } SiSHostChipInfo[] = {
89 { "SiS965", PCI_DEVICE_ID_SI_965, ATA_133 },
90 { "SiS745", PCI_DEVICE_ID_SI_745, ATA_100 },
91 { "SiS735", PCI_DEVICE_ID_SI_735, ATA_100 },
92 { "SiS733", PCI_DEVICE_ID_SI_733, ATA_100 },
93 { "SiS635", PCI_DEVICE_ID_SI_635, ATA_100 },
94 { "SiS633", PCI_DEVICE_ID_SI_633, ATA_100 },
95
96 { "SiS730", PCI_DEVICE_ID_SI_730, ATA_100a },
97 { "SiS550", PCI_DEVICE_ID_SI_550, ATA_100a },
98
99 { "SiS640", PCI_DEVICE_ID_SI_640, ATA_66 },
100 { "SiS630", PCI_DEVICE_ID_SI_630, ATA_66 },
101 { "SiS620", PCI_DEVICE_ID_SI_620, ATA_66 },
102 { "SiS540", PCI_DEVICE_ID_SI_540, ATA_66 },
103 { "SiS530", PCI_DEVICE_ID_SI_530, ATA_66 },
104
105 { "SiS5600", PCI_DEVICE_ID_SI_5600, ATA_33 },
106 { "SiS5598", PCI_DEVICE_ID_SI_5598, ATA_33 },
107 { "SiS5597", PCI_DEVICE_ID_SI_5597, ATA_33 },
108 { "SiS5591/2", PCI_DEVICE_ID_SI_5591, ATA_33 },
109 { "SiS5582", PCI_DEVICE_ID_SI_5582, ATA_33 },
110 { "SiS5581", PCI_DEVICE_ID_SI_5581, ATA_33 },
111
112 { "SiS5596", PCI_DEVICE_ID_SI_5596, ATA_16 },
113 { "SiS5571", PCI_DEVICE_ID_SI_5571, ATA_16 },
114 { "SiS5517", PCI_DEVICE_ID_SI_5517, ATA_16 },
115 { "SiS551x", PCI_DEVICE_ID_SI_5511, ATA_16 },
116 };
117
118 /* Cycle time bits and values vary across chip dma capabilities
119 These three arrays hold the register layout and the values to set.
120 Indexed by chipset_family and (dma_mode - XFER_UDMA_0) */
121
122 /* {0, ATA_16, ATA_33, ATA_66, ATA_100a, ATA_100, ATA_133} */
123 static u8 cycle_time_offset[] = {0,0,5,4,4,0,0};
124 static u8 cycle_time_range[] = {0,0,2,3,3,4,4};
125 static u8 cycle_time_value[][XFER_UDMA_6 - XFER_UDMA_0 + 1] = {
126 {0,0,0,0,0,0,0}, /* no udma */
127 {0,0,0,0,0,0,0}, /* no udma */
128 {3,2,1,0,0,0,0}, /* ATA_33 */
129 {7,5,3,2,1,0,0}, /* ATA_66 */
130 {7,5,3,2,1,0,0}, /* ATA_100a (730 specific), differences are on cycle_time range and offset */
131 {11,7,5,4,2,1,0}, /* ATA_100 */
132 {15,10,7,5,3,2,1}, /* ATA_133a (earliest 691 southbridges) */
133 {15,10,7,5,3,2,1}, /* ATA_133 */
134 };
135 /* CRC Valid Setup Time vary across IDE clock setting 33/66/100/133
136 See SiS962 data sheet for more detail */
137 static u8 cvs_time_value[][XFER_UDMA_6 - XFER_UDMA_0 + 1] = {
138 {0,0,0,0,0,0,0}, /* no udma */
139 {0,0,0,0,0,0,0}, /* no udma */
140 {2,1,1,0,0,0,0},
141 {4,3,2,1,0,0,0},
142 {4,3,2,1,0,0,0},
143 {6,4,3,1,1,1,0},
144 {9,6,4,2,2,2,2},
145 {9,6,4,2,2,2,2},
146 };
147 /* Initialize time, Active time, Recovery time vary across
148 IDE clock settings. These 3 arrays hold the register value
149 for PIO0/1/2/3/4 and DMA0/1/2 mode in order */
150 static u8 ini_time_value[][8] = {
151 {0,0,0,0,0,0,0,0},
152 {0,0,0,0,0,0,0,0},
153 {2,1,0,0,0,1,0,0},
154 {4,3,1,1,1,3,1,1},
155 {4,3,1,1,1,3,1,1},
156 {6,4,2,2,2,4,2,2},
157 {9,6,3,3,3,6,3,3},
158 {9,6,3,3,3,6,3,3},
159 };
160 static u8 act_time_value[][8] = {
161 {0,0,0,0,0,0,0,0},
162 {0,0,0,0,0,0,0,0},
163 {9,9,9,2,2,7,2,2},
164 {19,19,19,5,4,14,5,4},
165 {19,19,19,5,4,14,5,4},
166 {28,28,28,7,6,21,7,6},
167 {38,38,38,10,9,28,10,9},
168 {38,38,38,10,9,28,10,9},
169 };
170 static u8 rco_time_value[][8] = {
171 {0,0,0,0,0,0,0,0},
172 {0,0,0,0,0,0,0,0},
173 {9,2,0,2,0,7,1,1},
174 {19,5,1,5,2,16,3,2},
175 {19,5,1,5,2,16,3,2},
176 {30,9,3,9,4,25,6,4},
177 {40,12,4,12,5,34,12,5},
178 {40,12,4,12,5,34,12,5},
179 };
180
181 /*
182 * Printing configuration
183 */
184 /* Used for chipset type printing at boot time */
185 static char* chipset_capability[] = {
186 "ATA", "ATA 16",
187 "ATA 33", "ATA 66",
188 "ATA 100 (1st gen)", "ATA 100 (2nd gen)",
189 "ATA 133 (1st gen)", "ATA 133 (2nd gen)"
190 };
191
192 #if defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS)
193 #include <linux/stat.h>
194 #include <linux/proc_fs.h>
195
196 static u8 sis_proc = 0;
197
198 static struct pci_dev *bmide_dev;
199
200 static char* cable_type[] = {
201 "80 pins",
202 "40 pins"
203 };
204
205 static char* recovery_time[] ={
206 "12 PCICLK", "1 PCICLK",
207 "2 PCICLK", "3 PCICLK",
208 "4 PCICLK", "5 PCICLCK",
209 "6 PCICLK", "7 PCICLCK",
210 "8 PCICLK", "9 PCICLCK",
211 "10 PCICLK", "11 PCICLK",
212 "13 PCICLK", "14 PCICLK",
213 "15 PCICLK", "15 PCICLK"
214 };
215
216 static char* active_time[] = {
217 "8 PCICLK", "1 PCICLCK",
218 "2 PCICLK", "3 PCICLK",
219 "4 PCICLK", "5 PCICLK",
220 "6 PCICLK", "12 PCICLK"
221 };
222
223 static char* cycle_time[] = {
224 "Reserved", "2 CLK",
225 "3 CLK", "4 CLK",
226 "5 CLK", "6 CLK",
227 "7 CLK", "8 CLK",
228 "9 CLK", "10 CLK",
229 "11 CLK", "12 CLK",
230 "13 CLK", "14 CLK",
231 "15 CLK", "16 CLK"
232 };
233
234 /* Generic add master or slave info function */
235 static char* get_drives_info (char *buffer, u8 pos)
236 {
237 u8 reg00, reg01, reg10, reg11; /* timing registers */
238 u32 regdw0, regdw1;
239 char* p = buffer;
240
241 /* Postwrite/Prefetch */
242 if (chipset_family < ATA_133) {
243 pci_read_config_byte(bmide_dev, 0x4b, &reg00);
244 p += sprintf(p, "Drive %d: Postwrite %s \t \t Postwrite %s\n",
245 pos, (reg00 & (0x10 << pos)) ? "Enabled" : "Disabled",
246 (reg00 & (0x40 << pos)) ? "Enabled" : "Disabled");
247 p += sprintf(p, " Prefetch %s \t \t Prefetch %s\n",
248 (reg00 & (0x01 << pos)) ? "Enabled" : "Disabled",
249 (reg00 & (0x04 << pos)) ? "Enabled" : "Disabled");
250 pci_read_config_byte(bmide_dev, 0x40+2*pos, &reg00);
251 pci_read_config_byte(bmide_dev, 0x41+2*pos, &reg01);
252 pci_read_config_byte(bmide_dev, 0x44+2*pos, &reg10);
253 pci_read_config_byte(bmide_dev, 0x45+2*pos, &reg11);
254 } else {
255 u32 reg54h;
256 u8 drive_pci = 0x40;
257 pci_read_config_dword(bmide_dev, 0x54, &reg54h);
258 if (reg54h & 0x40000000) {
259 // Configuration space remapped to 0x70
260 drive_pci = 0x70;
261 }
262 pci_read_config_dword(bmide_dev, (unsigned long)drive_pci+4*pos, &regdw0);
263 pci_read_config_dword(bmide_dev, (unsigned long)drive_pci+4*pos+8, &regdw1);
264
265 p += sprintf(p, "Drive %d:\n", pos);
266 }
267
268
269 /* UDMA */
270 if (chipset_family >= ATA_133) {
271 p += sprintf(p, " UDMA %s \t \t \t UDMA %s\n",
272 (regdw0 & 0x04) ? "Enabled" : "Disabled",
273 (regdw1 & 0x04) ? "Enabled" : "Disabled");
274 p += sprintf(p, " UDMA Cycle Time %s \t UDMA Cycle Time %s\n",
275 cycle_time[(regdw0 & 0xF0) >> 4],
276 cycle_time[(regdw1 & 0xF0) >> 4]);
277 } else if (chipset_family >= ATA_33) {
278 p += sprintf(p, " UDMA %s \t \t \t UDMA %s\n",
279 (reg01 & 0x80) ? "Enabled" : "Disabled",
280 (reg11 & 0x80) ? "Enabled" : "Disabled");
281
282 p += sprintf(p, " UDMA Cycle Time ");
283 switch(chipset_family) {
284 case ATA_33: p += sprintf(p, cycle_time[(reg01 & 0x60) >> 5]); break;
285 case ATA_66:
286 case ATA_100a: p += sprintf(p, cycle_time[(reg01 & 0x70) >> 4]); break;
287 case ATA_100:
288 case ATA_133a: p += sprintf(p, cycle_time[reg01 & 0x0F]); break;
289 default: p += sprintf(p, "?"); break;
290 }
291 p += sprintf(p, " \t UDMA Cycle Time ");
292 switch(chipset_family) {
293 case ATA_33: p += sprintf(p, cycle_time[(reg11 & 0x60) >> 5]); break;
294 case ATA_66:
295 case ATA_100a: p += sprintf(p, cycle_time[(reg11 & 0x70) >> 4]); break;
296 case ATA_100:
297 case ATA_133a: p += sprintf(p, cycle_time[reg11 & 0x0F]); break;
298 default: p += sprintf(p, "?"); break;
299 }
300 p += sprintf(p, "\n");
301 }
302
303
304 if (chipset_family < ATA_133) { /* else case TODO */
305
306 /* Data Active */
307 p += sprintf(p, " Data Active Time ");
308 switch(chipset_family) {
309 case ATA_16: /* confirmed */
310 case ATA_33:
311 case ATA_66:
312 case ATA_100a: p += sprintf(p, active_time[reg01 & 0x07]); break;
313 case ATA_100:
314 case ATA_133a: p += sprintf(p, active_time[(reg00 & 0x70) >> 4]); break;
315 default: p += sprintf(p, "?"); break;
316 }
317 p += sprintf(p, " \t Data Active Time ");
318 switch(chipset_family) {
319 case ATA_16:
320 case ATA_33:
321 case ATA_66:
322 case ATA_100a: p += sprintf(p, active_time[reg11 & 0x07]); break;
323 case ATA_100:
324 case ATA_133a: p += sprintf(p, active_time[(reg10 & 0x70) >> 4]); break;
325 default: p += sprintf(p, "?"); break;
326 }
327 p += sprintf(p, "\n");
328
329 /* Data Recovery */
330 /* warning: may need (reg&0x07) for pre ATA66 chips */
331 p += sprintf(p, " Data Recovery Time %s \t Data Recovery Time %s\n",
332 recovery_time[reg00 & 0x0f], recovery_time[reg10 & 0x0f]);
333 }
334
335 return p;
336 }
337
338 static char* get_masters_info(char* buffer)
339 {
340 return get_drives_info(buffer, 0);
341 }
342
343 static char* get_slaves_info(char* buffer)
344 {
345 return get_drives_info(buffer, 1);
346 }
347
348 /* Main get_info, called on /proc/ide/sis reads */
349 static int sis_get_info (char *buffer, char **addr, off_t offset, int count)
350 {
351 char *p = buffer;
352 int len;
353 u8 reg;
354 u16 reg2, reg3;
355
356 p += sprintf(p, "\nSiS 5513 ");
357 switch(chipset_family) {
358 case ATA_16: p += sprintf(p, "DMA 16"); break;
359 case ATA_33: p += sprintf(p, "Ultra 33"); break;
360 case ATA_66: p += sprintf(p, "Ultra 66"); break;
361 case ATA_100a:
362 case ATA_100: p += sprintf(p, "Ultra 100"); break;
363 case ATA_133a:
364 case ATA_133: p += sprintf(p, "Ultra 133"); break;
365 default: p+= sprintf(p, "Unknown???"); break;
366 }
367 p += sprintf(p, " chipset\n");
368 p += sprintf(p, "--------------- Primary Channel "
369 "---------------- Secondary Channel "
370 "-------------\n");
371
372 /* Status */
373 pci_read_config_byte(bmide_dev, 0x4a, &reg);
374 if (chipset_family == ATA_133) {
375 pci_read_config_word(bmide_dev, 0x50, &reg2);
376 pci_read_config_word(bmide_dev, 0x52, &reg3);
377 }
378 p += sprintf(p, "Channel Status: ");
379 if (chipset_family < ATA_66) {
380 p += sprintf(p, "%s \t \t \t \t %s\n",
381 (reg & 0x04) ? "On" : "Off",
382 (reg & 0x02) ? "On" : "Off");
383 } else if (chipset_family < ATA_133) {
384 p += sprintf(p, "%s \t \t \t \t %s \n",
385 (reg & 0x02) ? "On" : "Off",
386 (reg & 0x04) ? "On" : "Off");
387 } else { /* ATA_133 */
388 p += sprintf(p, "%s \t \t \t \t %s \n",
389 (reg2 & 0x02) ? "On" : "Off",
390 (reg3 & 0x02) ? "On" : "Off");
391 }
392
393 /* Operation Mode */
394 pci_read_config_byte(bmide_dev, 0x09, &reg);
395 p += sprintf(p, "Operation Mode: %s \t \t \t %s \n",
396 (reg & 0x01) ? "Native" : "Compatible",
397 (reg & 0x04) ? "Native" : "Compatible");
398
399 /* 80-pin cable ? */
400 if (chipset_family >= ATA_133) {
401 p += sprintf(p, "Cable Type: %s \t \t \t %s\n",
402 (reg2 & 0x01) ? cable_type[1] : cable_type[0],
403 (reg3 & 0x01) ? cable_type[1] : cable_type[0]);
404 } else if (chipset_family > ATA_33) {
405 pci_read_config_byte(bmide_dev, 0x48, &reg);
406 p += sprintf(p, "Cable Type: %s \t \t \t %s\n",
407 (reg & 0x10) ? cable_type[1] : cable_type[0],
408 (reg & 0x20) ? cable_type[1] : cable_type[0]);
409 }
410
411 /* Prefetch Count */
412 if (chipset_family < ATA_133) {
413 pci_read_config_word(bmide_dev, 0x4c, &reg2);
414 pci_read_config_word(bmide_dev, 0x4e, &reg3);
415 p += sprintf(p, "Prefetch Count: %d \t \t \t \t %d\n",
416 reg2, reg3);
417 }
418
419 p = get_masters_info(p);
420 p = get_slaves_info(p);
421
422 len = (p - buffer) - offset;
423 *addr = buffer + offset;
424
425 return len > count ? count : len;
426 }
427 #endif /* defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS) */
428
429 static u8 sis5513_ratemask (ide_drive_t *drive)
430 {
431 u8 rates[] = { 0, 0, 1, 2, 3, 3, 4, 4 };
432 u8 mode = rates[chipset_family];
433
434 if (!eighty_ninty_three(drive))
435 mode = min(mode, (u8)1);
436 return mode;
437 }
438
439 /*
440 * Configuration functions
441 */
442 /* Enables per-drive prefetch and postwrite */
443 static void config_drive_art_rwp (ide_drive_t *drive)
444 {
445 ide_hwif_t *hwif = HWIF(drive);
446 struct pci_dev *dev = hwif->pci_dev;
447
448 u8 reg4bh = 0;
449 u8 rw_prefetch = (0x11 << drive->dn);
450
451 if (drive->media != ide_disk)
452 return;
453 pci_read_config_byte(dev, 0x4b, &reg4bh);
454
455 if ((reg4bh & rw_prefetch) != rw_prefetch)
456 pci_write_config_byte(dev, 0x4b, reg4bh|rw_prefetch);
457 }
458
459
460 /* Set per-drive active and recovery time */
461 static void config_art_rwp_pio (ide_drive_t *drive, u8 pio)
462 {
463 ide_hwif_t *hwif = HWIF(drive);
464 struct pci_dev *dev = hwif->pci_dev;
465
466 u8 timing, drive_pci, test1, test2;
467
468 u16 eide_pio_timing[6] = {600, 390, 240, 180, 120, 90};
469 u16 xfer_pio = drive->id->eide_pio_modes;
470
471 config_drive_art_rwp(drive);
472 pio = ide_get_best_pio_mode(drive, 255, pio, NULL);
473
474 if (xfer_pio> 4)
475 xfer_pio = 0;
476
477 if (drive->id->eide_pio_iordy > 0) {
478 for (xfer_pio = 5;
479 (xfer_pio > 0) &&
480 (drive->id->eide_pio_iordy > eide_pio_timing[xfer_pio]);
481 xfer_pio--);
482 } else {
483 xfer_pio = (drive->id->eide_pio_modes & 4) ? 0x05 :
484 (drive->id->eide_pio_modes & 2) ? 0x04 :
485 (drive->id->eide_pio_modes & 1) ? 0x03 : xfer_pio;
486 }
487
488 timing = (xfer_pio >= pio) ? xfer_pio : pio;
489
490 /* In pre ATA_133 case, drives sit at 0x40 + 4*drive->dn */
491 drive_pci = 0x40;
492 /* In SiS962 case drives sit at (0x40 or 0x70) + 8*drive->dn) */
493 if (chipset_family >= ATA_133) {
494 u32 reg54h;
495 pci_read_config_dword(dev, 0x54, &reg54h);
496 if (reg54h & 0x40000000) drive_pci = 0x70;
497 drive_pci += ((drive->dn)*0x4);
498 } else {
499 drive_pci += ((drive->dn)*0x2);
500 }
501
502 /* register layout changed with newer ATA100 chips */
503 if (chipset_family < ATA_100) {
504 pci_read_config_byte(dev, drive_pci, &test1);
505 pci_read_config_byte(dev, drive_pci+1, &test2);
506
507 /* Clear active and recovery timings */
508 test1 &= ~0x0F;
509 test2 &= ~0x07;
510
511 switch(timing) {
512 case 4: test1 |= 0x01; test2 |= 0x03; break;
513 case 3: test1 |= 0x03; test2 |= 0x03; break;
514 case 2: test1 |= 0x04; test2 |= 0x04; break;
515 case 1: test1 |= 0x07; test2 |= 0x06; break;
516 default: break;
517 }
518 pci_write_config_byte(dev, drive_pci, test1);
519 pci_write_config_byte(dev, drive_pci+1, test2);
520 } else if (chipset_family < ATA_133) {
521 switch(timing) { /* active recovery
522 v v */
523 case 4: test1 = 0x30|0x01; break;
524 case 3: test1 = 0x30|0x03; break;
525 case 2: test1 = 0x40|0x04; break;
526 case 1: test1 = 0x60|0x07; break;
527 case 0: test1 = 0x00; break;
528 default: break;
529 }
530 pci_write_config_byte(dev, drive_pci, test1);
531 } else { /* ATA_133 */
532 u32 test3;
533 pci_read_config_dword(dev, drive_pci, &test3);
534 test3 &= 0xc0c00fff;
535 if (test3 & 0x08) {
536 test3 |= (unsigned long)ini_time_value[ATA_133][timing] << 12;
537 test3 |= (unsigned long)act_time_value[ATA_133][timing] << 16;
538 test3 |= (unsigned long)rco_time_value[ATA_133][timing] << 24;
539 } else {
540 test3 |= (unsigned long)ini_time_value[ATA_100][timing] << 12;
541 test3 |= (unsigned long)act_time_value[ATA_100][timing] << 16;
542 test3 |= (unsigned long)rco_time_value[ATA_100][timing] << 24;
543 }
544 pci_write_config_dword(dev, drive_pci, test3);
545 }
546 }
547
548 static int config_chipset_for_pio (ide_drive_t *drive, u8 pio)
549 {
550 if (pio == 255)
551 pio = ide_find_best_mode(drive, XFER_PIO | XFER_EPIO) - XFER_PIO_0;
552 config_art_rwp_pio(drive, pio);
553 return ide_config_drive_speed(drive, XFER_PIO_0 + min_t(u8, pio, 4));
554 }
555
556 static int sis5513_tune_chipset (ide_drive_t *drive, u8 xferspeed)
557 {
558 ide_hwif_t *hwif = HWIF(drive);
559 struct pci_dev *dev = hwif->pci_dev;
560
561 u8 drive_pci, reg, speed;
562 u32 regdw;
563
564 speed = ide_rate_filter(sis5513_ratemask(drive), xferspeed);
565
566 /* See config_art_rwp_pio for drive pci config registers */
567 drive_pci = 0x40;
568 if (chipset_family >= ATA_133) {
569 u32 reg54h;
570 pci_read_config_dword(dev, 0x54, &reg54h);
571 if (reg54h & 0x40000000) drive_pci = 0x70;
572 drive_pci += ((drive->dn)*0x4);
573 pci_read_config_dword(dev, (unsigned long)drive_pci, &regdw);
574 /* Disable UDMA bit for non UDMA modes on UDMA chips */
575 if (speed < XFER_UDMA_0) {
576 regdw &= 0xfffffffb;
577 pci_write_config_dword(dev, (unsigned long)drive_pci, regdw);
578 }
579
580 } else {
581 drive_pci += ((drive->dn)*0x2);
582 pci_read_config_byte(dev, drive_pci+1, &reg);
583 /* Disable UDMA bit for non UDMA modes on UDMA chips */
584 if ((speed < XFER_UDMA_0) && (chipset_family > ATA_16)) {
585 reg &= 0x7F;
586 pci_write_config_byte(dev, drive_pci+1, reg);
587 }
588 }
589
590 /* Config chip for mode */
591 switch(speed) {
592 case XFER_UDMA_6:
593 case XFER_UDMA_5:
594 case XFER_UDMA_4:
595 case XFER_UDMA_3:
596 case XFER_UDMA_2:
597 case XFER_UDMA_1:
598 case XFER_UDMA_0:
599 if (chipset_family >= ATA_133) {
600 regdw |= 0x04;
601 regdw &= 0xfffff00f;
602 /* check if ATA133 enable */
603 if (regdw & 0x08) {
604 regdw |= (unsigned long)cycle_time_value[ATA_133][speed-XFER_UDMA_0] << 4;
605 regdw |= (unsigned long)cvs_time_value[ATA_133][speed-XFER_UDMA_0] << 8;
606 } else {
607 /* if ATA133 disable, we should not set speed above UDMA5 */
608 if (speed > XFER_UDMA_5)
609 speed = XFER_UDMA_5;
610 regdw |= (unsigned long)cycle_time_value[ATA_100][speed-XFER_UDMA_0] << 4;
611 regdw |= (unsigned long)cvs_time_value[ATA_100][speed-XFER_UDMA_0] << 8;
612 }
613 pci_write_config_dword(dev, (unsigned long)drive_pci, regdw);
614 } else {
615 /* Force the UDMA bit on if we want to use UDMA */
616 reg |= 0x80;
617 /* clean reg cycle time bits */
618 reg &= ~((0xFF >> (8 - cycle_time_range[chipset_family]))
619 << cycle_time_offset[chipset_family]);
620 /* set reg cycle time bits */
621 reg |= cycle_time_value[chipset_family][speed-XFER_UDMA_0]
622 << cycle_time_offset[chipset_family];
623 pci_write_config_byte(dev, drive_pci+1, reg);
624 }
625 break;
626 case XFER_MW_DMA_2:
627 case XFER_MW_DMA_1:
628 case XFER_MW_DMA_0:
629 case XFER_SW_DMA_2:
630 case XFER_SW_DMA_1:
631 case XFER_SW_DMA_0:
632 break;
633 case XFER_PIO_4: return((int) config_chipset_for_pio(drive, 4));
634 case XFER_PIO_3: return((int) config_chipset_for_pio(drive, 3));
635 case XFER_PIO_2: return((int) config_chipset_for_pio(drive, 2));
636 case XFER_PIO_1: return((int) config_chipset_for_pio(drive, 1));
637 case XFER_PIO_0:
638 default: return((int) config_chipset_for_pio(drive, 0));
639 }
640
641 return ((int) ide_config_drive_speed(drive, speed));
642 }
643
644 static void sis5513_tune_drive (ide_drive_t *drive, u8 pio)
645 {
646 (void) config_chipset_for_pio(drive, pio);
647 }
648
649 /*
650 * ((id->hw_config & 0x4000|0x2000) && (HWIF(drive)->udma_four))
651 */
652 static int config_chipset_for_dma (ide_drive_t *drive)
653 {
654 u8 speed = ide_dma_speed(drive, sis5513_ratemask(drive));
655
656 #ifdef DEBUG
657 printk("SIS5513: config_chipset_for_dma, drive %d, ultra %x\n",
658 drive->dn, drive->id->dma_ultra);
659 #endif
660
661 if (!(speed))
662 return 0;
663
664 sis5513_tune_chipset(drive, speed);
665 return ide_dma_enable(drive);
666 }
667
668 static int sis5513_config_drive_xfer_rate (ide_drive_t *drive)
669 {
670 ide_hwif_t *hwif = HWIF(drive);
671 struct hd_driveid *id = drive->id;
672
673 drive->init_speed = 0;
674
675 if (id && (id->capability & 1) && drive->autodma) {
676
677 if (ide_use_dma(drive)) {
678 if (config_chipset_for_dma(drive))
679 return hwif->ide_dma_on(drive);
680 }
681
682 goto fast_ata_pio;
683
684 } else if ((id->capability & 8) || (id->field_valid & 2)) {
685 fast_ata_pio:
686 sis5513_tune_drive(drive, 5);
687 return hwif->ide_dma_off_quietly(drive);
688 }
689 /* IORDY not supported */
690 return 0;
691 }
692
693 /* initiates/aborts (U)DMA read/write operations on a drive. */
694 static int sis5513_config_xfer_rate (ide_drive_t *drive)
695 {
696 config_drive_art_rwp(drive);
697 config_art_rwp_pio(drive, 5);
698 return sis5513_config_drive_xfer_rate(drive);
699 }
700
701 /*
702 Future simpler config_xfer_rate :
703 When ide_find_best_mode is made bad-drive aware
704 - remove config_drive_xfer_rate and config_chipset_for_dma,
705 - replace config_xfer_rate with the following
706
707 static int sis5513_config_xfer_rate (ide_drive_t *drive)
708 {
709 u16 w80 = HWIF(drive)->udma_four;
710 u16 speed;
711
712 config_drive_art_rwp(drive);
713 config_art_rwp_pio(drive, 5);
714
715 speed = ide_find_best_mode(drive,
716 XFER_PIO | XFER_EPIO | XFER_SWDMA | XFER_MWDMA |
717 (chipset_family >= ATA_33 ? XFER_UDMA : 0) |
718 (w80 && chipset_family >= ATA_66 ? XFER_UDMA_66 : 0) |
719 (w80 && chipset_family >= ATA_100a ? XFER_UDMA_100 : 0) |
720 (w80 && chipset_family >= ATA_133a ? XFER_UDMA_133 : 0));
721
722 sis5513_tune_chipset(drive, speed);
723
724 if (drive->autodma && (speed & XFER_MODE) != XFER_PIO)
725 return HWIF(drive)->ide_dma_on(drive);
726 return HWIF(drive)->ide_dma_off_quietly(drive);
727 }
728 */
729
730 /* Chip detection and general config */
731 static unsigned int __devinit init_chipset_sis5513 (struct pci_dev *dev, const char *name)
732 {
733 struct pci_dev *host;
734 int i = 0;
735
736 chipset_family = 0;
737
738 for (i = 0; i < ARRAY_SIZE(SiSHostChipInfo) && !chipset_family; i++) {
739
740 host = pci_find_device(PCI_VENDOR_ID_SI, SiSHostChipInfo[i].host_id, NULL);
741
742 if (!host)
743 continue;
744
745 chipset_family = SiSHostChipInfo[i].chipset_family;
746
747 /* Special case for SiS630 : 630S/ET is ATA_100a */
748 if (SiSHostChipInfo[i].host_id == PCI_DEVICE_ID_SI_630) {
749 u8 hostrev;
750 pci_read_config_byte(host, PCI_REVISION_ID, &hostrev);
751 if (hostrev >= 0x30)
752 chipset_family = ATA_100a;
753 }
754
755 printk(KERN_INFO "SIS5513: %s %s controller\n",
756 SiSHostChipInfo[i].name, chipset_capability[chipset_family]);
757 }
758
759 if (!chipset_family) { /* Belongs to pci-quirks */
760
761 u32 idemisc;
762 u16 trueid;
763
764 /* Disable ID masking and register remapping */
765 pci_read_config_dword(dev, 0x54, &idemisc);
766 pci_write_config_dword(dev, 0x54, (idemisc & 0x7fffffff));
767 pci_read_config_word(dev, PCI_DEVICE_ID, &trueid);
768 pci_write_config_dword(dev, 0x54, idemisc);
769
770 if (trueid == 0x5518) {
771 printk(KERN_INFO "SIS5513: SiS 962/963 MuTIOL IDE UDMA133 controller\n");
772 chipset_family = ATA_133;
773
774 /* Check for 5513 compability mapping
775 * We must use this, else the port enabled code will fail,
776 * as it expects the enablebits at 0x4a.
777 */
778 if ((idemisc & 0x40000000) == 0) {
779 pci_write_config_dword(dev, 0x54, idemisc | 0x40000000);
780 printk(KERN_INFO "SIS5513: Switching to 5513 register mapping\n");
781 }
782 }
783 }
784
785 if (!chipset_family) { /* Belongs to pci-quirks */
786
787 struct pci_dev *lpc_bridge;
788 u16 trueid;
789 u8 prefctl;
790 u8 idecfg;
791 u8 sbrev;
792
793 pci_read_config_byte(dev, 0x4a, &idecfg);
794 pci_write_config_byte(dev, 0x4a, idecfg | 0x10);
795 pci_read_config_word(dev, PCI_DEVICE_ID, &trueid);
796 pci_write_config_byte(dev, 0x4a, idecfg);
797
798 if (trueid == 0x5517) { /* SiS 961/961B */
799
800 lpc_bridge = pci_find_slot(0x00, 0x10); /* Bus 0, Dev 2, Fn 0 */
801 pci_read_config_byte(lpc_bridge, PCI_REVISION_ID, &sbrev);
802 pci_read_config_byte(dev, 0x49, &prefctl);
803
804 if (sbrev == 0x10 && (prefctl & 0x80)) {
805 printk(KERN_INFO "SIS5513: SiS 961B MuTIOL IDE UDMA133 controller\n");
806 chipset_family = ATA_133a;
807 } else {
808 printk(KERN_INFO "SIS5513: SiS 961 MuTIOL IDE UDMA100 controller\n");
809 chipset_family = ATA_100;
810 }
811 }
812 }
813
814 if (!chipset_family)
815 return -1;
816
817 /* Make general config ops here
818 1/ tell IDE channels to operate in Compatibility mode only
819 2/ tell old chips to allow per drive IDE timings */
820
821 {
822 u8 reg;
823 u16 regw;
824
825 switch(chipset_family) {
826 case ATA_133:
827 /* SiS962 operation mode */
828 pci_read_config_word(dev, 0x50, &regw);
829 if (regw & 0x08)
830 pci_write_config_word(dev, 0x50, regw&0xfff7);
831 pci_read_config_word(dev, 0x52, &regw);
832 if (regw & 0x08)
833 pci_write_config_word(dev, 0x52, regw&0xfff7);
834 break;
835 case ATA_133a:
836 case ATA_100:
837 /* Fixup latency */
838 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x80);
839 /* Set compatibility bit */
840 pci_read_config_byte(dev, 0x49, &reg);
841 if (!(reg & 0x01)) {
842 pci_write_config_byte(dev, 0x49, reg|0x01);
843 }
844 break;
845 case ATA_100a:
846 case ATA_66:
847 /* Fixup latency */
848 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x10);
849
850 /* On ATA_66 chips the bit was elsewhere */
851 pci_read_config_byte(dev, 0x52, &reg);
852 if (!(reg & 0x04)) {
853 pci_write_config_byte(dev, 0x52, reg|0x04);
854 }
855 break;
856 case ATA_33:
857 /* On ATA_33 we didn't have a single bit to set */
858 pci_read_config_byte(dev, 0x09, &reg);
859 if ((reg & 0x0f) != 0x00) {
860 pci_write_config_byte(dev, 0x09, reg&0xf0);
861 }
862 case ATA_16:
863 /* force per drive recovery and active timings
864 needed on ATA_33 and below chips */
865 pci_read_config_byte(dev, 0x52, &reg);
866 if (!(reg & 0x08)) {
867 pci_write_config_byte(dev, 0x52, reg|0x08);
868 }
869 break;
870 }
871
872 #if defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS)
873 if (!sis_proc) {
874 sis_proc = 1;
875 bmide_dev = dev;
876 ide_pci_create_host_proc("sis", sis_get_info);
877 }
878 #endif
879 }
880
881 return 0;
882 }
883
884 static unsigned int __devinit ata66_sis5513 (ide_hwif_t *hwif)
885 {
886 u8 ata66 = 0;
887
888 if (chipset_family >= ATA_133) {
889 u16 regw = 0;
890 u16 reg_addr = hwif->channel ? 0x52: 0x50;
891 pci_read_config_word(hwif->pci_dev, reg_addr, &regw);
892 ata66 = (regw & 0x8000) ? 0 : 1;
893 } else if (chipset_family >= ATA_66) {
894 u8 reg48h = 0;
895 u8 mask = hwif->channel ? 0x20 : 0x10;
896 pci_read_config_byte(hwif->pci_dev, 0x48, &reg48h);
897 ata66 = (reg48h & mask) ? 0 : 1;
898 }
899 return ata66;
900 }
901
902 static void __devinit init_hwif_sis5513 (ide_hwif_t *hwif)
903 {
904 hwif->autodma = 0;
905
906 if (!hwif->irq)
907 hwif->irq = hwif->channel ? 15 : 14;
908
909 hwif->tuneproc = &sis5513_tune_drive;
910 hwif->speedproc = &sis5513_tune_chipset;
911
912 if (!(hwif->dma_base)) {
913 hwif->drives[0].autotune = 1;
914 hwif->drives[1].autotune = 1;
915 return;
916 }
917
918 hwif->atapi_dma = 1;
919 hwif->ultra_mask = 0x7f;
920 hwif->mwdma_mask = 0x07;
921 hwif->swdma_mask = 0x07;
922
923 if (!chipset_family)
924 return;
925
926 if (!(hwif->udma_four))
927 hwif->udma_four = ata66_sis5513(hwif);
928
929 if (chipset_family > ATA_16) {
930 hwif->ide_dma_check = &sis5513_config_xfer_rate;
931 if (!noautodma)
932 hwif->autodma = 1;
933 }
934 hwif->drives[0].autodma = hwif->autodma;
935 hwif->drives[1].autodma = hwif->autodma;
936 return;
937 }
938
939 static ide_pci_device_t sis5513_chipset __devinitdata = {
940 .name = "SIS5513",
941 .init_chipset = init_chipset_sis5513,
942 .init_hwif = init_hwif_sis5513,
943 .channels = 2,
944 .autodma = NOAUTODMA,
945 .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
946 .bootable = ON_BOARD,
947 };
948
949 static int __devinit sis5513_init_one(struct pci_dev *dev, const struct pci_device_id *id)
950 {
951 return ide_setup_pci_device(dev, &sis5513_chipset);
952 }
953
954 static struct pci_device_id sis5513_pci_tbl[] = {
955 { PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5513, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
956 { PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5518, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
957 { 0, },
958 };
959 MODULE_DEVICE_TABLE(pci, sis5513_pci_tbl);
960
961 static struct pci_driver driver = {
962 .name = "SIS_IDE",
963 .id_table = sis5513_pci_tbl,
964 .probe = sis5513_init_one,
965 };
966
967 static int sis5513_ide_init(void)
968 {
969 return ide_pci_register_driver(&driver);
970 }
971
972 module_init(sis5513_ide_init);
973
974 MODULE_AUTHOR("Lionel Bouton, L C Chang, Andre Hedrick, Vojtech Pavlik");
975 MODULE_DESCRIPTION("PCI driver module for SIS IDE");
976 MODULE_LICENSE("GPL");
977
978 /*
979 * TODO:
980 * - CLEANUP
981 * - Use drivers/ide/ide-timing.h !
982 * - More checks in the config registers (force values instead of
983 * relying on the BIOS setting them correctly).
984 * - Further optimisations ?
985 * . for example ATA66+ regs 0x48 & 0x4A
986 */
kernel-based virtual machine