2 * linux/drivers/ide/pci/sis5513.c Version 0.26 Jul 7, 2007
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 * Copyright (C) 2007 Bartlomiej Zolnierkiewicz
9 * May be copied or modified under the terms of the GNU General Public License
14 * SiS Taiwan : for direct support and hardware.
15 * Daniela Engert : for initial ATA100 advices and numerous others.
16 * John Fremlin, Manfred Spraul, Dave Morgan, Peter Kjellerstedt :
17 * for checking code correctness, providing patches.
20 * Original tests and design on the SiS620 chipset.
21 * ATA100 tests and design on the SiS735 chipset.
22 * ATA16/33 support from specs
23 * ATA133 support for SiS961/962 by L.C. Chang <lcchang@sis.com.tw>
24 * ATA133 961/962/963 fixes by Vojtech Pavlik <vojtech@suse.cz>
27 * SiS chipset documentation available under NDA to companies only
28 * (not to individuals).
32 * The original SiS5513 comes from a SiS5511/55112/5513 chipset. The original
33 * SiS5513 was also used in the SiS5596/5513 chipset. Thus if we see a SiS5511
34 * or SiS5596, we can assume we see the first MWDMA-16 capable SiS5513 chip.
36 * Later SiS chipsets integrated the 5513 functionality into the NorthBridge,
37 * starting with SiS5571 and up to SiS745. The PCI ID didn't change, though. We
38 * can figure out that we have a more modern and more capable 5513 by looking
39 * for the respective NorthBridge IDs.
41 * Even later (96x family) SiS chipsets use the MuTIOL link and place the 5513
42 * into the SouthBrige. Here we cannot rely on looking up the NorthBridge PCI
43 * ID, while the now ATA-133 capable 5513 still has the same PCI ID.
44 * Fortunately the 5513 can be 'unmasked' by fiddling with some config space
45 * bits, changing its device id to the true one - 5517 for 961 and 5518 for
49 #include <linux/types.h>
50 #include <linux/module.h>
51 #include <linux/kernel.h>
52 #include <linux/delay.h>
53 #include <linux/timer.h>
55 #include <linux/ioport.h>
56 #include <linux/blkdev.h>
57 #include <linux/hdreg.h>
59 #include <linux/interrupt.h>
60 #include <linux/pci.h>
61 #include <linux/init.h>
62 #include <linux/ide.h>
66 #include "ide-timing.h"
68 #define DISPLAY_SIS_TIMINGS
70 /* registers layout and init values are chipset family dependant */
75 #define ATA_100a 0x04 // SiS730/SiS550 is ATA100 with ATA66 layout
77 #define ATA_133a 0x06 // SiS961b with 133 support
78 #define ATA_133 0x07 // SiS962/963
80 static u8 chipset_family;
90 } SiSHostChipInfo[] = {
91 { "SiS968", PCI_DEVICE_ID_SI_968, ATA_133 },
92 { "SiS966", PCI_DEVICE_ID_SI_966, ATA_133 },
93 { "SiS965", PCI_DEVICE_ID_SI_965, ATA_133 },
94 { "SiS745", PCI_DEVICE_ID_SI_745, ATA_100 },
95 { "SiS735", PCI_DEVICE_ID_SI_735, ATA_100 },
96 { "SiS733", PCI_DEVICE_ID_SI_733, ATA_100 },
97 { "SiS635", PCI_DEVICE_ID_SI_635, ATA_100 },
98 { "SiS633", PCI_DEVICE_ID_SI_633, ATA_100 },
100 { "SiS730", PCI_DEVICE_ID_SI_730, ATA_100a },
101 { "SiS550", PCI_DEVICE_ID_SI_550, ATA_100a },
103 { "SiS640", PCI_DEVICE_ID_SI_640, ATA_66 },
104 { "SiS630", PCI_DEVICE_ID_SI_630, ATA_66 },
105 { "SiS620", PCI_DEVICE_ID_SI_620, ATA_66 },
106 { "SiS540", PCI_DEVICE_ID_SI_540, ATA_66 },
107 { "SiS530", PCI_DEVICE_ID_SI_530, ATA_66 },
109 { "SiS5600", PCI_DEVICE_ID_SI_5600, ATA_33 },
110 { "SiS5598", PCI_DEVICE_ID_SI_5598, ATA_33 },
111 { "SiS5597", PCI_DEVICE_ID_SI_5597, ATA_33 },
112 { "SiS5591/2", PCI_DEVICE_ID_SI_5591, ATA_33 },
113 { "SiS5582", PCI_DEVICE_ID_SI_5582, ATA_33 },
114 { "SiS5581", PCI_DEVICE_ID_SI_5581, ATA_33 },
116 { "SiS5596", PCI_DEVICE_ID_SI_5596, ATA_16 },
117 { "SiS5571", PCI_DEVICE_ID_SI_5571, ATA_16 },
118 { "SiS5517", PCI_DEVICE_ID_SI_5517, ATA_16 },
119 { "SiS551x", PCI_DEVICE_ID_SI_5511, ATA_16 },
122 /* Cycle time bits and values vary across chip dma capabilities
123 These three arrays hold the register layout and the values to set.
124 Indexed by chipset_family and (dma_mode - XFER_UDMA_0) */
126 /* {0, ATA_16, ATA_33, ATA_66, ATA_100a, ATA_100, ATA_133} */
127 static u8 cycle_time_offset[] = {0,0,5,4,4,0,0};
128 static u8 cycle_time_range[] = {0,0,2,3,3,4,4};
129 static u8 cycle_time_value[][XFER_UDMA_6 - XFER_UDMA_0 + 1] = {
130 {0,0,0,0,0,0,0}, /* no udma */
131 {0,0,0,0,0,0,0}, /* no udma */
132 {3,2,1,0,0,0,0}, /* ATA_33 */
133 {7,5,3,2,1,0,0}, /* ATA_66 */
134 {7,5,3,2,1,0,0}, /* ATA_100a (730 specific), differences are on cycle_time range and offset */
135 {11,7,5,4,2,1,0}, /* ATA_100 */
136 {15,10,7,5,3,2,1}, /* ATA_133a (earliest 691 southbridges) */
137 {15,10,7,5,3,2,1}, /* ATA_133 */
139 /* CRC Valid Setup Time vary across IDE clock setting 33/66/100/133
140 See SiS962 data sheet for more detail */
141 static u8 cvs_time_value[][XFER_UDMA_6 - XFER_UDMA_0 + 1] = {
142 {0,0,0,0,0,0,0}, /* no udma */
143 {0,0,0,0,0,0,0}, /* no udma */
151 /* Initialize time, Active time, Recovery time vary across
152 IDE clock settings. These 3 arrays hold the register value
153 for PIO0/1/2/3/4 and DMA0/1/2 mode in order */
154 static u8 ini_time_value[][8] = {
164 static u8 act_time_value[][8] = {
168 {19,19,19,5,4,14,5,4},
169 {19,19,19,5,4,14,5,4},
170 {28,28,28,7,6,21,7,6},
171 {38,38,38,10,9,28,10,9},
172 {38,38,38,10,9,28,10,9},
174 static u8 rco_time_value[][8] = {
181 {40,12,4,12,5,34,12,5},
182 {40,12,4,12,5,34,12,5},
186 * Printing configuration
188 /* Used for chipset type printing at boot time */
189 static char* chipset_capability[] = {
192 "ATA 100 (1st gen)", "ATA 100 (2nd gen)",
193 "ATA 133 (1st gen)", "ATA 133 (2nd gen)"
196 #if defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_IDE_PROC_FS)
197 #include <linux/stat.h>
198 #include <linux/proc_fs.h>
200 static u8 sis_proc = 0;
202 static struct pci_dev *bmide_dev;
204 static char* cable_type[] = {
209 static char* recovery_time[] ={
210 "12 PCICLK", "1 PCICLK",
211 "2 PCICLK", "3 PCICLK",
212 "4 PCICLK", "5 PCICLCK",
213 "6 PCICLK", "7 PCICLCK",
214 "8 PCICLK", "9 PCICLCK",
215 "10 PCICLK", "11 PCICLK",
216 "13 PCICLK", "14 PCICLK",
217 "15 PCICLK", "15 PCICLK"
220 static char* active_time[] = {
221 "8 PCICLK", "1 PCICLCK",
222 "2 PCICLK", "3 PCICLK",
223 "4 PCICLK", "5 PCICLK",
224 "6 PCICLK", "12 PCICLK"
227 static char* cycle_time[] = {
238 /* Generic add master or slave info function */
239 static char* get_drives_info (char *buffer, u8 pos)
241 u8 reg00, reg01, reg10, reg11; /* timing registers */
245 /* Postwrite/Prefetch */
246 if (chipset_family < ATA_133) {
247 pci_read_config_byte(bmide_dev, 0x4b, ®00);
248 p += sprintf(p, "Drive %d: Postwrite %s \t \t Postwrite %s\n",
249 pos, (reg00 & (0x10 << pos)) ? "Enabled" : "Disabled",
250 (reg00 & (0x40 << pos)) ? "Enabled" : "Disabled");
251 p += sprintf(p, " Prefetch %s \t \t Prefetch %s\n",
252 (reg00 & (0x01 << pos)) ? "Enabled" : "Disabled",
253 (reg00 & (0x04 << pos)) ? "Enabled" : "Disabled");
254 pci_read_config_byte(bmide_dev, 0x40+2*pos, ®00);
255 pci_read_config_byte(bmide_dev, 0x41+2*pos, ®01);
256 pci_read_config_byte(bmide_dev, 0x44+2*pos, ®10);
257 pci_read_config_byte(bmide_dev, 0x45+2*pos, ®11);
261 pci_read_config_dword(bmide_dev, 0x54, ®54h);
262 if (reg54h & 0x40000000) {
263 // Configuration space remapped to 0x70
266 pci_read_config_dword(bmide_dev, (unsigned long)drive_pci+4*pos, ®dw0);
267 pci_read_config_dword(bmide_dev, (unsigned long)drive_pci+4*pos+8, ®dw1);
269 p += sprintf(p, "Drive %d:\n", pos);
274 if (chipset_family >= ATA_133) {
275 p += sprintf(p, " UDMA %s \t \t \t UDMA %s\n",
276 (regdw0 & 0x04) ? "Enabled" : "Disabled",
277 (regdw1 & 0x04) ? "Enabled" : "Disabled");
278 p += sprintf(p, " UDMA Cycle Time %s \t UDMA Cycle Time %s\n",
279 cycle_time[(regdw0 & 0xF0) >> 4],
280 cycle_time[(regdw1 & 0xF0) >> 4]);
281 } else if (chipset_family >= ATA_33) {
282 p += sprintf(p, " UDMA %s \t \t \t UDMA %s\n",
283 (reg01 & 0x80) ? "Enabled" : "Disabled",
284 (reg11 & 0x80) ? "Enabled" : "Disabled");
286 p += sprintf(p, " UDMA Cycle Time ");
287 switch(chipset_family) {
288 case ATA_33: p += sprintf(p, cycle_time[(reg01 & 0x60) >> 5]); break;
290 case ATA_100a: p += sprintf(p, cycle_time[(reg01 & 0x70) >> 4]); break;
292 case ATA_133a: p += sprintf(p, cycle_time[reg01 & 0x0F]); break;
293 default: p += sprintf(p, "?"); break;
295 p += sprintf(p, " \t UDMA Cycle Time ");
296 switch(chipset_family) {
297 case ATA_33: p += sprintf(p, cycle_time[(reg11 & 0x60) >> 5]); break;
299 case ATA_100a: p += sprintf(p, cycle_time[(reg11 & 0x70) >> 4]); break;
301 case ATA_133a: p += sprintf(p, cycle_time[reg11 & 0x0F]); break;
302 default: p += sprintf(p, "?"); break;
304 p += sprintf(p, "\n");
308 if (chipset_family < ATA_133) { /* else case TODO */
311 p += sprintf(p, " Data Active Time ");
312 switch(chipset_family) {
313 case ATA_16: /* confirmed */
316 case ATA_100a: p += sprintf(p, active_time[reg01 & 0x07]); break;
318 case ATA_133a: p += sprintf(p, active_time[(reg00 & 0x70) >> 4]); break;
319 default: p += sprintf(p, "?"); break;
321 p += sprintf(p, " \t Data Active Time ");
322 switch(chipset_family) {
326 case ATA_100a: p += sprintf(p, active_time[reg11 & 0x07]); break;
328 case ATA_133a: p += sprintf(p, active_time[(reg10 & 0x70) >> 4]); break;
329 default: p += sprintf(p, "?"); break;
331 p += sprintf(p, "\n");
334 /* warning: may need (reg&0x07) for pre ATA66 chips */
335 p += sprintf(p, " Data Recovery Time %s \t Data Recovery Time %s\n",
336 recovery_time[reg00 & 0x0f], recovery_time[reg10 & 0x0f]);
342 static char* get_masters_info(char* buffer)
344 return get_drives_info(buffer, 0);
347 static char* get_slaves_info(char* buffer)
349 return get_drives_info(buffer, 1);
352 /* Main get_info, called on /proc/ide/sis reads */
353 static int sis_get_info (char *buffer, char **addr, off_t offset, int count)
360 p += sprintf(p, "\nSiS 5513 ");
361 switch(chipset_family) {
362 case ATA_16: p += sprintf(p, "DMA 16"); break;
363 case ATA_33: p += sprintf(p, "Ultra 33"); break;
364 case ATA_66: p += sprintf(p, "Ultra 66"); break;
366 case ATA_100: p += sprintf(p, "Ultra 100"); break;
368 case ATA_133: p += sprintf(p, "Ultra 133"); break;
369 default: p+= sprintf(p, "Unknown???"); break;
371 p += sprintf(p, " chipset\n");
372 p += sprintf(p, "--------------- Primary Channel "
373 "---------------- Secondary Channel "
377 pci_read_config_byte(bmide_dev, 0x4a, ®);
378 if (chipset_family == ATA_133) {
379 pci_read_config_word(bmide_dev, 0x50, ®2);
380 pci_read_config_word(bmide_dev, 0x52, ®3);
382 p += sprintf(p, "Channel Status: ");
383 if (chipset_family < ATA_66) {
384 p += sprintf(p, "%s \t \t \t \t %s\n",
385 (reg & 0x04) ? "On" : "Off",
386 (reg & 0x02) ? "On" : "Off");
387 } else if (chipset_family < ATA_133) {
388 p += sprintf(p, "%s \t \t \t \t %s \n",
389 (reg & 0x02) ? "On" : "Off",
390 (reg & 0x04) ? "On" : "Off");
391 } else { /* ATA_133 */
392 p += sprintf(p, "%s \t \t \t \t %s \n",
393 (reg2 & 0x02) ? "On" : "Off",
394 (reg3 & 0x02) ? "On" : "Off");
398 pci_read_config_byte(bmide_dev, 0x09, ®);
399 p += sprintf(p, "Operation Mode: %s \t \t \t %s \n",
400 (reg & 0x01) ? "Native" : "Compatible",
401 (reg & 0x04) ? "Native" : "Compatible");
404 if (chipset_family >= ATA_133) {
405 p += sprintf(p, "Cable Type: %s \t \t \t %s\n",
406 (reg2 & 0x01) ? cable_type[1] : cable_type[0],
407 (reg3 & 0x01) ? cable_type[1] : cable_type[0]);
408 } else if (chipset_family > ATA_33) {
409 pci_read_config_byte(bmide_dev, 0x48, ®);
410 p += sprintf(p, "Cable Type: %s \t \t \t %s\n",
411 (reg & 0x10) ? cable_type[1] : cable_type[0],
412 (reg & 0x20) ? cable_type[1] : cable_type[0]);
416 if (chipset_family < ATA_133) {
417 pci_read_config_word(bmide_dev, 0x4c, ®2);
418 pci_read_config_word(bmide_dev, 0x4e, ®3);
419 p += sprintf(p, "Prefetch Count: %d \t \t \t \t %d\n",
423 p = get_masters_info(p);
424 p = get_slaves_info(p);
426 len = (p - buffer) - offset;
427 *addr = buffer + offset;
429 return len > count ? count : len;
431 #endif /* defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_IDE_PROC_FS) */
434 * Configuration functions
436 /* Enables per-drive prefetch and postwrite */
437 static void config_drive_art_rwp (ide_drive_t *drive)
439 ide_hwif_t *hwif = HWIF(drive);
440 struct pci_dev *dev = hwif->pci_dev;
443 u8 rw_prefetch = (0x11 << drive->dn);
445 if (drive->media != ide_disk)
447 pci_read_config_byte(dev, 0x4b, ®4bh);
449 if ((reg4bh & rw_prefetch) != rw_prefetch)
450 pci_write_config_byte(dev, 0x4b, reg4bh|rw_prefetch);
453 /* Set per-drive active and recovery time */
454 static void config_art_rwp_pio (ide_drive_t *drive, u8 pio)
456 ide_hwif_t *hwif = HWIF(drive);
457 struct pci_dev *dev = hwif->pci_dev;
459 u8 drive_pci, test1, test2;
461 config_drive_art_rwp(drive);
463 /* In pre ATA_133 case, drives sit at 0x40 + 4*drive->dn */
465 /* In SiS962 case drives sit at (0x40 or 0x70) + 8*drive->dn) */
466 if (chipset_family >= ATA_133) {
468 pci_read_config_dword(dev, 0x54, ®54h);
469 if (reg54h & 0x40000000) drive_pci = 0x70;
470 drive_pci += ((drive->dn)*0x4);
472 drive_pci += ((drive->dn)*0x2);
475 /* register layout changed with newer ATA100 chips */
476 if (chipset_family < ATA_100) {
477 pci_read_config_byte(dev, drive_pci, &test1);
478 pci_read_config_byte(dev, drive_pci+1, &test2);
480 /* Clear active and recovery timings */
485 case 4: test1 |= 0x01; test2 |= 0x03; break;
486 case 3: test1 |= 0x03; test2 |= 0x03; break;
487 case 2: test1 |= 0x04; test2 |= 0x04; break;
488 case 1: test1 |= 0x07; test2 |= 0x06; break;
489 case 0: /* PIO0: register setting == X000 */
492 pci_write_config_byte(dev, drive_pci, test1);
493 pci_write_config_byte(dev, drive_pci+1, test2);
494 } else if (chipset_family < ATA_133) {
495 switch(pio) { /* active recovery
497 case 4: test1 = 0x30|0x01; break;
498 case 3: test1 = 0x30|0x03; break;
499 case 2: test1 = 0x40|0x04; break;
500 case 1: test1 = 0x60|0x07; break;
501 case 0: test1 = 0x00; break;
504 pci_write_config_byte(dev, drive_pci, test1);
505 } else { /* ATA_133 */
507 pci_read_config_dword(dev, drive_pci, &test3);
510 test3 |= ini_time_value[ATA_133][pio] << 12;
511 test3 |= act_time_value[ATA_133][pio] << 16;
512 test3 |= rco_time_value[ATA_133][pio] << 24;
514 test3 |= ini_time_value[ATA_100][pio] << 12;
515 test3 |= act_time_value[ATA_100][pio] << 16;
516 test3 |= rco_time_value[ATA_100][pio] << 24;
518 pci_write_config_dword(dev, drive_pci, test3);
522 static int sis5513_tune_drive(ide_drive_t *drive, u8 pio)
524 pio = ide_get_best_pio_mode(drive, pio, 4);
525 config_art_rwp_pio(drive, pio);
526 return ide_config_drive_speed(drive, XFER_PIO_0 + pio);
529 static void sis5513_tuneproc(ide_drive_t *drive, u8 pio)
531 (void)sis5513_tune_drive(drive, pio);
534 static int sis5513_tune_chipset (ide_drive_t *drive, u8 xferspeed)
536 ide_hwif_t *hwif = HWIF(drive);
537 struct pci_dev *dev = hwif->pci_dev;
539 u8 drive_pci, reg, speed;
542 speed = ide_rate_filter(drive, xferspeed);
544 /* See config_art_rwp_pio for drive pci config registers */
546 if (chipset_family >= ATA_133) {
548 pci_read_config_dword(dev, 0x54, ®54h);
549 if (reg54h & 0x40000000) drive_pci = 0x70;
550 drive_pci += ((drive->dn)*0x4);
551 pci_read_config_dword(dev, (unsigned long)drive_pci, ®dw);
552 /* Disable UDMA bit for non UDMA modes on UDMA chips */
553 if (speed < XFER_UDMA_0) {
555 pci_write_config_dword(dev, (unsigned long)drive_pci, regdw);
559 drive_pci += ((drive->dn)*0x2);
560 pci_read_config_byte(dev, drive_pci+1, ®);
561 /* Disable UDMA bit for non UDMA modes on UDMA chips */
562 if ((speed < XFER_UDMA_0) && (chipset_family > ATA_16)) {
564 pci_write_config_byte(dev, drive_pci+1, reg);
568 /* Config chip for mode */
577 if (chipset_family >= ATA_133) {
580 /* check if ATA133 enable */
582 regdw |= (unsigned long)cycle_time_value[ATA_133][speed-XFER_UDMA_0] << 4;
583 regdw |= (unsigned long)cvs_time_value[ATA_133][speed-XFER_UDMA_0] << 8;
585 regdw |= (unsigned long)cycle_time_value[ATA_100][speed-XFER_UDMA_0] << 4;
586 regdw |= (unsigned long)cvs_time_value[ATA_100][speed-XFER_UDMA_0] << 8;
588 pci_write_config_dword(dev, (unsigned long)drive_pci, regdw);
590 /* Force the UDMA bit on if we want to use UDMA */
592 /* clean reg cycle time bits */
593 reg &= ~((0xFF >> (8 - cycle_time_range[chipset_family]))
594 << cycle_time_offset[chipset_family]);
595 /* set reg cycle time bits */
596 reg |= cycle_time_value[chipset_family][speed-XFER_UDMA_0]
597 << cycle_time_offset[chipset_family];
598 pci_write_config_byte(dev, drive_pci+1, reg);
613 return sis5513_tune_drive(drive, speed - XFER_PIO_0);
619 return ide_config_drive_speed(drive, speed);
622 static int sis5513_config_xfer_rate(ide_drive_t *drive)
625 * TODO: always set PIO mode and remove this
627 sis5513_tuneproc(drive, 255);
629 drive->init_speed = 0;
631 if (ide_tune_dma(drive))
634 if (ide_use_fast_pio(drive))
635 sis5513_tuneproc(drive, 255);
640 static u8 sis5513_ata133_udma_filter(ide_drive_t *drive)
642 struct pci_dev *dev = drive->hwif->pci_dev;
644 u32 reg54 = 0, regdw = 0;
646 pci_read_config_dword(dev, 0x54, ®54);
647 drive_pci = ((reg54 & 0x40000000) ? 0x70 : 0x40) + drive->dn * 4;
648 pci_read_config_dword(dev, drive_pci, ®dw);
650 /* if ATA133 disable, we should not set speed above UDMA5 */
651 return (regdw & 0x08) ? ATA_UDMA6 : ATA_UDMA5;
654 /* Chip detection and general config */
655 static unsigned int __devinit init_chipset_sis5513 (struct pci_dev *dev, const char *name)
657 struct pci_dev *host;
662 for (i = 0; i < ARRAY_SIZE(SiSHostChipInfo) && !chipset_family; i++) {
664 host = pci_get_device(PCI_VENDOR_ID_SI, SiSHostChipInfo[i].host_id, NULL);
669 chipset_family = SiSHostChipInfo[i].chipset_family;
671 /* Special case for SiS630 : 630S/ET is ATA_100a */
672 if (SiSHostChipInfo[i].host_id == PCI_DEVICE_ID_SI_630) {
673 if (host->revision >= 0x30)
674 chipset_family = ATA_100a;
678 printk(KERN_INFO "SIS5513: %s %s controller\n",
679 SiSHostChipInfo[i].name, chipset_capability[chipset_family]);
682 if (!chipset_family) { /* Belongs to pci-quirks */
687 /* Disable ID masking and register remapping */
688 pci_read_config_dword(dev, 0x54, &idemisc);
689 pci_write_config_dword(dev, 0x54, (idemisc & 0x7fffffff));
690 pci_read_config_word(dev, PCI_DEVICE_ID, &trueid);
691 pci_write_config_dword(dev, 0x54, idemisc);
693 if (trueid == 0x5518) {
694 printk(KERN_INFO "SIS5513: SiS 962/963 MuTIOL IDE UDMA133 controller\n");
695 chipset_family = ATA_133;
697 /* Check for 5513 compability mapping
698 * We must use this, else the port enabled code will fail,
699 * as it expects the enablebits at 0x4a.
701 if ((idemisc & 0x40000000) == 0) {
702 pci_write_config_dword(dev, 0x54, idemisc | 0x40000000);
703 printk(KERN_INFO "SIS5513: Switching to 5513 register mapping\n");
708 if (!chipset_family) { /* Belongs to pci-quirks */
710 struct pci_dev *lpc_bridge;
715 pci_read_config_byte(dev, 0x4a, &idecfg);
716 pci_write_config_byte(dev, 0x4a, idecfg | 0x10);
717 pci_read_config_word(dev, PCI_DEVICE_ID, &trueid);
718 pci_write_config_byte(dev, 0x4a, idecfg);
720 if (trueid == 0x5517) { /* SiS 961/961B */
722 lpc_bridge = pci_get_slot(dev->bus, 0x10); /* Bus 0, Dev 2, Fn 0 */
723 pci_read_config_byte(dev, 0x49, &prefctl);
724 pci_dev_put(lpc_bridge);
726 if (lpc_bridge->revision == 0x10 && (prefctl & 0x80)) {
727 printk(KERN_INFO "SIS5513: SiS 961B MuTIOL IDE UDMA133 controller\n");
728 chipset_family = ATA_133a;
730 printk(KERN_INFO "SIS5513: SiS 961 MuTIOL IDE UDMA100 controller\n");
731 chipset_family = ATA_100;
739 /* Make general config ops here
740 1/ tell IDE channels to operate in Compatibility mode only
741 2/ tell old chips to allow per drive IDE timings */
747 switch(chipset_family) {
749 /* SiS962 operation mode */
750 pci_read_config_word(dev, 0x50, ®w);
752 pci_write_config_word(dev, 0x50, regw&0xfff7);
753 pci_read_config_word(dev, 0x52, ®w);
755 pci_write_config_word(dev, 0x52, regw&0xfff7);
760 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x80);
761 /* Set compatibility bit */
762 pci_read_config_byte(dev, 0x49, ®);
764 pci_write_config_byte(dev, 0x49, reg|0x01);
770 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x10);
772 /* On ATA_66 chips the bit was elsewhere */
773 pci_read_config_byte(dev, 0x52, ®);
775 pci_write_config_byte(dev, 0x52, reg|0x04);
779 /* On ATA_33 we didn't have a single bit to set */
780 pci_read_config_byte(dev, 0x09, ®);
781 if ((reg & 0x0f) != 0x00) {
782 pci_write_config_byte(dev, 0x09, reg&0xf0);
785 /* force per drive recovery and active timings
786 needed on ATA_33 and below chips */
787 pci_read_config_byte(dev, 0x52, ®);
789 pci_write_config_byte(dev, 0x52, reg|0x08);
794 #if defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_IDE_PROC_FS)
798 ide_pci_create_host_proc("sis", sis_get_info);
812 static const struct sis_laptop sis_laptop[] = {
813 /* devid, subvendor, subdev */
814 { 0x5513, 0x1043, 0x1107 }, /* ASUS A6K */
815 { 0x5513, 0x1734, 0x105f }, /* FSC Amilo A1630 */
820 static u8 __devinit ata66_sis5513(ide_hwif_t *hwif)
822 struct pci_dev *pdev = hwif->pci_dev;
823 const struct sis_laptop *lap = &sis_laptop[0];
826 while (lap->device) {
827 if (lap->device == pdev->device &&
828 lap->subvendor == pdev->subsystem_vendor &&
829 lap->subdevice == pdev->subsystem_device)
830 return ATA_CBL_PATA40_SHORT;
834 if (chipset_family >= ATA_133) {
836 u16 reg_addr = hwif->channel ? 0x52: 0x50;
837 pci_read_config_word(hwif->pci_dev, reg_addr, ®w);
838 ata66 = (regw & 0x8000) ? 0 : 1;
839 } else if (chipset_family >= ATA_66) {
841 u8 mask = hwif->channel ? 0x20 : 0x10;
842 pci_read_config_byte(hwif->pci_dev, 0x48, ®48h);
843 ata66 = (reg48h & mask) ? 0 : 1;
846 return ata66 ? ATA_CBL_PATA80 : ATA_CBL_PATA40;
849 static void __devinit init_hwif_sis5513 (ide_hwif_t *hwif)
851 u8 udma_rates[] = { 0x00, 0x00, 0x07, 0x1f, 0x3f, 0x3f, 0x7f, 0x7f };
856 hwif->irq = hwif->channel ? 15 : 14;
858 hwif->tuneproc = &sis5513_tuneproc;
859 hwif->speedproc = &sis5513_tune_chipset;
861 if (chipset_family >= ATA_133)
862 hwif->udma_filter = sis5513_ata133_udma_filter;
864 if (!(hwif->dma_base)) {
865 hwif->drives[0].autotune = 1;
866 hwif->drives[1].autotune = 1;
872 hwif->ultra_mask = udma_rates[chipset_family];
873 hwif->mwdma_mask = 0x07;
874 hwif->swdma_mask = 0x07;
879 if (hwif->cbl != ATA_CBL_PATA40_SHORT)
880 hwif->cbl = ata66_sis5513(hwif);
882 if (chipset_family > ATA_16) {
883 hwif->ide_dma_check = &sis5513_config_xfer_rate;
887 hwif->drives[0].autodma = hwif->autodma;
888 hwif->drives[1].autodma = hwif->autodma;
892 static ide_pci_device_t sis5513_chipset __devinitdata = {
894 .init_chipset = init_chipset_sis5513,
895 .init_hwif = init_hwif_sis5513,
896 .autodma = NOAUTODMA,
897 .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
898 .bootable = ON_BOARD,
899 .pio_mask = ATA_PIO4,
902 static int __devinit sis5513_init_one(struct pci_dev *dev, const struct pci_device_id *id)
904 return ide_setup_pci_device(dev, &sis5513_chipset);
907 static struct pci_device_id sis5513_pci_tbl[] = {
908 { PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5513, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
909 { PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5518, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
910 { PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_1180, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
913 MODULE_DEVICE_TABLE(pci, sis5513_pci_tbl);
915 static struct pci_driver driver = {
917 .id_table = sis5513_pci_tbl,
918 .probe = sis5513_init_one,
921 static int __init sis5513_ide_init(void)
923 return ide_pci_register_driver(&driver);
926 module_init(sis5513_ide_init);
928 MODULE_AUTHOR("Lionel Bouton, L C Chang, Andre Hedrick, Vojtech Pavlik");
929 MODULE_DESCRIPTION("PCI driver module for SIS IDE");
930 MODULE_LICENSE("GPL");
935 * - Use drivers/ide/ide-timing.h !
936 * - More checks in the config registers (force values instead of
937 * relying on the BIOS setting them correctly).
938 * - Further optimisations ?
939 * . for example ATA66+ regs 0x48 & 0x4A