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1da177e4 | 1 | /* |
95ba8c17 | 2 | * linux/drivers/ide/pci/alim15x3.c Version 0.25 Jun 9 2007 |
1da177e4 LT |
3 | * |
4 | * Copyright (C) 1998-2000 Michel Aubry, Maintainer | |
5 | * Copyright (C) 1998-2000 Andrzej Krzysztofowicz, Maintainer | |
6 | * Copyright (C) 1999-2000 CJ, cjtsai@ali.com.tw, Maintainer | |
7 | * | |
8 | * Copyright (C) 1998-2000 Andre Hedrick (andre@linux-ide.org) | |
9 | * May be copied or modified under the terms of the GNU General Public License | |
10 | * Copyright (C) 2002 Alan Cox <alan@redhat.com> | |
11 | * ALi (now ULi M5228) support by Clear Zhang <Clear.Zhang@ali.com.tw> | |
21b82477 | 12 | * Copyright (C) 2007 MontaVista Software, Inc. <source@mvista.com> |
95ba8c17 | 13 | * Copyright (C) 2007 Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> |
1da177e4 LT |
14 | * |
15 | * (U)DMA capable version of ali 1533/1543(C), 1535(D) | |
16 | * | |
17 | ********************************************************************** | |
18 | * 9/7/99 --Parts from the above author are included and need to be | |
19 | * converted into standard interface, once I finish the thought. | |
20 | * | |
21 | * Recent changes | |
22 | * Don't use LBA48 mode on ALi <= 0xC4 | |
23 | * Don't poke 0x79 with a non ALi northbridge | |
24 | * Don't flip undefined bits on newer chipsets (fix Fujitsu laptop hang) | |
25 | * Allow UDMA6 on revisions > 0xC4 | |
26 | * | |
27 | * Documentation | |
28 | * Chipset documentation available under NDA only | |
29 | * | |
30 | */ | |
31 | ||
1da177e4 LT |
32 | #include <linux/module.h> |
33 | #include <linux/types.h> | |
34 | #include <linux/kernel.h> | |
35 | #include <linux/pci.h> | |
36 | #include <linux/delay.h> | |
37 | #include <linux/hdreg.h> | |
38 | #include <linux/ide.h> | |
39 | #include <linux/init.h> | |
95ba8c17 | 40 | #include <linux/dmi.h> |
1da177e4 LT |
41 | |
42 | #include <asm/io.h> | |
43 | ||
44 | #define DISPLAY_ALI_TIMINGS | |
45 | ||
46 | /* | |
47 | * ALi devices are not plug in. Otherwise these static values would | |
48 | * need to go. They ought to go away anyway | |
49 | */ | |
50 | ||
51 | static u8 m5229_revision; | |
52 | static u8 chip_is_1543c_e; | |
53 | static struct pci_dev *isa_dev; | |
54 | ||
ecfd80e4 | 55 | #if defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_IDE_PROC_FS) |
1da177e4 LT |
56 | #include <linux/stat.h> |
57 | #include <linux/proc_fs.h> | |
58 | ||
59 | static u8 ali_proc = 0; | |
60 | ||
61 | static struct pci_dev *bmide_dev; | |
62 | ||
63 | static char *fifo[4] = { | |
64 | "FIFO Off", | |
65 | "FIFO On ", | |
66 | "DMA mode", | |
67 | "PIO mode" }; | |
68 | ||
69 | static char *udmaT[8] = { | |
70 | "1.5T", | |
71 | " 2T", | |
72 | "2.5T", | |
73 | " 3T", | |
74 | "3.5T", | |
75 | " 4T", | |
76 | " 6T", | |
77 | " 8T" | |
78 | }; | |
79 | ||
80 | static char *channel_status[8] = { | |
81 | "OK ", | |
82 | "busy ", | |
83 | "DRQ ", | |
84 | "DRQ busy ", | |
85 | "error ", | |
86 | "error busy ", | |
87 | "error DRQ ", | |
88 | "error DRQ busy" | |
89 | }; | |
90 | ||
91 | /** | |
92 | * ali_get_info - generate proc file for ALi IDE | |
93 | * @buffer: buffer to fill | |
94 | * @addr: address of user start in buffer | |
95 | * @offset: offset into 'file' | |
96 | * @count: buffer count | |
97 | * | |
98 | * Walks the Ali devices and outputs summary data on the tuning and | |
99 | * anything else that will help with debugging | |
100 | */ | |
101 | ||
102 | static int ali_get_info (char *buffer, char **addr, off_t offset, int count) | |
103 | { | |
104 | unsigned long bibma; | |
105 | u8 reg53h, reg5xh, reg5yh, reg5xh1, reg5yh1, c0, c1, rev, tmp; | |
106 | char *q, *p = buffer; | |
107 | ||
108 | /* fetch rev. */ | |
109 | pci_read_config_byte(bmide_dev, 0x08, &rev); | |
110 | if (rev >= 0xc1) /* M1543C or newer */ | |
111 | udmaT[7] = " ???"; | |
112 | else | |
113 | fifo[3] = " ??? "; | |
114 | ||
115 | /* first fetch bibma: */ | |
116 | ||
117 | bibma = pci_resource_start(bmide_dev, 4); | |
118 | ||
119 | /* | |
120 | * at that point bibma+0x2 et bibma+0xa are byte | |
121 | * registers to investigate: | |
122 | */ | |
123 | c0 = inb(bibma + 0x02); | |
124 | c1 = inb(bibma + 0x0a); | |
125 | ||
126 | p += sprintf(p, | |
127 | "\n Ali M15x3 Chipset.\n"); | |
128 | p += sprintf(p, | |
129 | " ------------------\n"); | |
130 | pci_read_config_byte(bmide_dev, 0x78, ®53h); | |
131 | p += sprintf(p, "PCI Clock: %d.\n", reg53h); | |
132 | ||
133 | pci_read_config_byte(bmide_dev, 0x53, ®53h); | |
134 | p += sprintf(p, | |
135 | "CD_ROM FIFO:%s, CD_ROM DMA:%s\n", | |
136 | (reg53h & 0x02) ? "Yes" : "No ", | |
137 | (reg53h & 0x01) ? "Yes" : "No " ); | |
138 | pci_read_config_byte(bmide_dev, 0x74, ®53h); | |
139 | p += sprintf(p, | |
140 | "FIFO Status: contains %d Words, runs%s%s\n\n", | |
141 | (reg53h & 0x3f), | |
142 | (reg53h & 0x40) ? " OVERWR" : "", | |
143 | (reg53h & 0x80) ? " OVERRD." : "." ); | |
144 | ||
145 | p += sprintf(p, | |
146 | "-------------------primary channel" | |
147 | "-------------------secondary channel" | |
148 | "---------\n\n"); | |
149 | ||
150 | pci_read_config_byte(bmide_dev, 0x09, ®53h); | |
151 | p += sprintf(p, | |
152 | "channel status: %s" | |
153 | " %s\n", | |
154 | (reg53h & 0x20) ? "On " : "Off", | |
155 | (reg53h & 0x10) ? "On " : "Off" ); | |
156 | ||
157 | p += sprintf(p, | |
158 | "both channels togth: %s" | |
159 | " %s\n", | |
160 | (c0&0x80) ? "No " : "Yes", | |
161 | (c1&0x80) ? "No " : "Yes" ); | |
162 | ||
163 | pci_read_config_byte(bmide_dev, 0x76, ®53h); | |
164 | p += sprintf(p, | |
165 | "Channel state: %s %s\n", | |
166 | channel_status[reg53h & 0x07], | |
167 | channel_status[(reg53h & 0x70) >> 4] ); | |
168 | ||
169 | pci_read_config_byte(bmide_dev, 0x58, ®5xh); | |
170 | pci_read_config_byte(bmide_dev, 0x5c, ®5yh); | |
171 | p += sprintf(p, | |
172 | "Add. Setup Timing: %dT" | |
173 | " %dT\n", | |
174 | (reg5xh & 0x07) ? (reg5xh & 0x07) : 8, | |
175 | (reg5yh & 0x07) ? (reg5yh & 0x07) : 8 ); | |
176 | ||
177 | pci_read_config_byte(bmide_dev, 0x59, ®5xh); | |
178 | pci_read_config_byte(bmide_dev, 0x5d, ®5yh); | |
179 | p += sprintf(p, | |
180 | "Command Act. Count: %dT" | |
181 | " %dT\n" | |
182 | "Command Rec. Count: %dT" | |
183 | " %dT\n\n", | |
184 | (reg5xh & 0x70) ? ((reg5xh & 0x70) >> 4) : 8, | |
185 | (reg5yh & 0x70) ? ((reg5yh & 0x70) >> 4) : 8, | |
186 | (reg5xh & 0x0f) ? (reg5xh & 0x0f) : 16, | |
187 | (reg5yh & 0x0f) ? (reg5yh & 0x0f) : 16 ); | |
188 | ||
189 | p += sprintf(p, | |
190 | "----------------drive0-----------drive1" | |
191 | "------------drive0-----------drive1------\n\n"); | |
192 | p += sprintf(p, | |
193 | "DMA enabled: %s %s" | |
194 | " %s %s\n", | |
195 | (c0&0x20) ? "Yes" : "No ", | |
196 | (c0&0x40) ? "Yes" : "No ", | |
197 | (c1&0x20) ? "Yes" : "No ", | |
198 | (c1&0x40) ? "Yes" : "No " ); | |
199 | ||
200 | pci_read_config_byte(bmide_dev, 0x54, ®5xh); | |
201 | pci_read_config_byte(bmide_dev, 0x55, ®5yh); | |
202 | q = "FIFO threshold: %2d Words %2d Words" | |
203 | " %2d Words %2d Words\n"; | |
204 | if (rev < 0xc1) { | |
205 | if ((rev == 0x20) && | |
206 | (pci_read_config_byte(bmide_dev, 0x4f, &tmp), (tmp &= 0x20))) { | |
207 | p += sprintf(p, q, 8, 8, 8, 8); | |
208 | } else { | |
209 | p += sprintf(p, q, | |
210 | (reg5xh & 0x03) + 12, | |
211 | ((reg5xh & 0x30)>>4) + 12, | |
212 | (reg5yh & 0x03) + 12, | |
213 | ((reg5yh & 0x30)>>4) + 12 ); | |
214 | } | |
215 | } else { | |
216 | int t1 = (tmp = (reg5xh & 0x03)) ? (tmp << 3) : 4; | |
217 | int t2 = (tmp = ((reg5xh & 0x30)>>4)) ? (tmp << 3) : 4; | |
218 | int t3 = (tmp = (reg5yh & 0x03)) ? (tmp << 3) : 4; | |
219 | int t4 = (tmp = ((reg5yh & 0x30)>>4)) ? (tmp << 3) : 4; | |
220 | p += sprintf(p, q, t1, t2, t3, t4); | |
221 | } | |
222 | ||
223 | #if 0 | |
224 | p += sprintf(p, | |
225 | "FIFO threshold: %2d Words %2d Words" | |
226 | " %2d Words %2d Words\n", | |
227 | (reg5xh & 0x03) + 12, | |
228 | ((reg5xh & 0x30)>>4) + 12, | |
229 | (reg5yh & 0x03) + 12, | |
230 | ((reg5yh & 0x30)>>4) + 12 ); | |
231 | #endif | |
232 | ||
233 | p += sprintf(p, | |
234 | "FIFO mode: %s %s %s %s\n", | |
235 | fifo[((reg5xh & 0x0c) >> 2)], | |
236 | fifo[((reg5xh & 0xc0) >> 6)], | |
237 | fifo[((reg5yh & 0x0c) >> 2)], | |
238 | fifo[((reg5yh & 0xc0) >> 6)] ); | |
239 | ||
240 | pci_read_config_byte(bmide_dev, 0x5a, ®5xh); | |
241 | pci_read_config_byte(bmide_dev, 0x5b, ®5xh1); | |
242 | pci_read_config_byte(bmide_dev, 0x5e, ®5yh); | |
243 | pci_read_config_byte(bmide_dev, 0x5f, ®5yh1); | |
244 | ||
245 | p += sprintf(p,/* | |
246 | "------------------drive0-----------drive1" | |
247 | "------------drive0-----------drive1------\n")*/ | |
248 | "Dt RW act. Cnt %2dT %2dT" | |
249 | " %2dT %2dT\n" | |
250 | "Dt RW rec. Cnt %2dT %2dT" | |
251 | " %2dT %2dT\n\n", | |
252 | (reg5xh & 0x70) ? ((reg5xh & 0x70) >> 4) : 8, | |
253 | (reg5xh1 & 0x70) ? ((reg5xh1 & 0x70) >> 4) : 8, | |
254 | (reg5yh & 0x70) ? ((reg5yh & 0x70) >> 4) : 8, | |
255 | (reg5yh1 & 0x70) ? ((reg5yh1 & 0x70) >> 4) : 8, | |
256 | (reg5xh & 0x0f) ? (reg5xh & 0x0f) : 16, | |
257 | (reg5xh1 & 0x0f) ? (reg5xh1 & 0x0f) : 16, | |
258 | (reg5yh & 0x0f) ? (reg5yh & 0x0f) : 16, | |
259 | (reg5yh1 & 0x0f) ? (reg5yh1 & 0x0f) : 16 ); | |
260 | ||
261 | p += sprintf(p, | |
262 | "-----------------------------------UDMA Timings" | |
263 | "--------------------------------\n\n"); | |
264 | ||
265 | pci_read_config_byte(bmide_dev, 0x56, ®5xh); | |
266 | pci_read_config_byte(bmide_dev, 0x57, ®5yh); | |
267 | p += sprintf(p, | |
268 | "UDMA: %s %s" | |
269 | " %s %s\n" | |
270 | "UDMA timings: %s %s" | |
271 | " %s %s\n\n", | |
272 | (reg5xh & 0x08) ? "OK" : "No", | |
273 | (reg5xh & 0x80) ? "OK" : "No", | |
274 | (reg5yh & 0x08) ? "OK" : "No", | |
275 | (reg5yh & 0x80) ? "OK" : "No", | |
276 | udmaT[(reg5xh & 0x07)], | |
277 | udmaT[(reg5xh & 0x70) >> 4], | |
278 | udmaT[reg5yh & 0x07], | |
279 | udmaT[(reg5yh & 0x70) >> 4] ); | |
280 | ||
281 | return p-buffer; /* => must be less than 4k! */ | |
282 | } | |
ecfd80e4 | 283 | #endif /* defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_IDE_PROC_FS) */ |
1da177e4 LT |
284 | |
285 | /** | |
21b82477 | 286 | * ali15x3_tune_pio - set up chipset for PIO mode |
1da177e4 | 287 | * @drive: drive to tune |
21b82477 | 288 | * @pio: desired mode |
1da177e4 | 289 | * |
21b82477 SS |
290 | * Select the best PIO mode for the drive in question. |
291 | * Then program the controller for this mode. | |
292 | * | |
293 | * Returns the PIO mode programmed. | |
1da177e4 LT |
294 | */ |
295 | ||
21b82477 | 296 | static u8 ali15x3_tune_pio (ide_drive_t *drive, u8 pio) |
1da177e4 | 297 | { |
1da177e4 LT |
298 | ide_hwif_t *hwif = HWIF(drive); |
299 | struct pci_dev *dev = hwif->pci_dev; | |
300 | int s_time, a_time, c_time; | |
301 | u8 s_clc, a_clc, r_clc; | |
302 | unsigned long flags; | |
303 | int bus_speed = system_bus_clock(); | |
304 | int port = hwif->channel ? 0x5c : 0x58; | |
305 | int portFIFO = hwif->channel ? 0x55 : 0x54; | |
306 | u8 cd_dma_fifo = 0; | |
307 | int unit = drive->select.b.unit & 1; | |
308 | ||
2134758d | 309 | pio = ide_get_best_pio_mode(drive, pio, 5); |
1da177e4 LT |
310 | s_time = ide_pio_timings[pio].setup_time; |
311 | a_time = ide_pio_timings[pio].active_time; | |
312 | if ((s_clc = (s_time * bus_speed + 999) / 1000) >= 8) | |
313 | s_clc = 0; | |
314 | if ((a_clc = (a_time * bus_speed + 999) / 1000) >= 8) | |
315 | a_clc = 0; | |
316 | c_time = ide_pio_timings[pio].cycle_time; | |
317 | ||
318 | #if 0 | |
319 | if ((r_clc = ((c_time - s_time - a_time) * bus_speed + 999) / 1000) >= 16) | |
320 | r_clc = 0; | |
321 | #endif | |
322 | ||
323 | if (!(r_clc = (c_time * bus_speed + 999) / 1000 - a_clc - s_clc)) { | |
324 | r_clc = 1; | |
325 | } else { | |
326 | if (r_clc >= 16) | |
327 | r_clc = 0; | |
328 | } | |
329 | local_irq_save(flags); | |
330 | ||
331 | /* | |
332 | * PIO mode => ATA FIFO on, ATAPI FIFO off | |
333 | */ | |
334 | pci_read_config_byte(dev, portFIFO, &cd_dma_fifo); | |
335 | if (drive->media==ide_disk) { | |
336 | if (unit) { | |
337 | pci_write_config_byte(dev, portFIFO, (cd_dma_fifo & 0x0F) | 0x50); | |
338 | } else { | |
339 | pci_write_config_byte(dev, portFIFO, (cd_dma_fifo & 0xF0) | 0x05); | |
340 | } | |
341 | } else { | |
342 | if (unit) { | |
343 | pci_write_config_byte(dev, portFIFO, cd_dma_fifo & 0x0F); | |
344 | } else { | |
345 | pci_write_config_byte(dev, portFIFO, cd_dma_fifo & 0xF0); | |
346 | } | |
347 | } | |
348 | ||
349 | pci_write_config_byte(dev, port, s_clc); | |
350 | pci_write_config_byte(dev, port+drive->select.b.unit+2, (a_clc << 4) | r_clc); | |
351 | local_irq_restore(flags); | |
352 | ||
353 | /* | |
354 | * setup active rec | |
355 | * { 70, 165, 365 }, PIO Mode 0 | |
356 | * { 50, 125, 208 }, PIO Mode 1 | |
357 | * { 30, 100, 110 }, PIO Mode 2 | |
358 | * { 30, 80, 70 }, PIO Mode 3 with IORDY | |
359 | * { 25, 70, 25 }, PIO Mode 4 with IORDY ns | |
360 | * { 20, 50, 30 } PIO Mode 5 with IORDY (nonstandard) | |
361 | */ | |
362 | ||
21b82477 SS |
363 | return pio; |
364 | } | |
365 | ||
366 | /** | |
367 | * ali15x3_tune_drive - set up drive for PIO mode | |
368 | * @drive: drive to tune | |
369 | * @pio: desired mode | |
370 | * | |
371 | * Program the controller with the best PIO timing for the given drive. | |
372 | * Then set up the drive itself. | |
373 | */ | |
374 | ||
375 | static void ali15x3_tune_drive (ide_drive_t *drive, u8 pio) | |
376 | { | |
377 | pio = ali15x3_tune_pio(drive, pio); | |
378 | (void) ide_config_drive_speed(drive, XFER_PIO_0 + pio); | |
1da177e4 LT |
379 | } |
380 | ||
381 | /** | |
2d5eaa6d BZ |
382 | * ali_udma_filter - compute UDMA mask |
383 | * @drive: IDE device | |
1da177e4 | 384 | * |
2d5eaa6d BZ |
385 | * Return available UDMA modes. |
386 | * | |
387 | * The actual rules for the ALi are: | |
1da177e4 LT |
388 | * No UDMA on revisions <= 0x20 |
389 | * Disk only for revisions < 0xC2 | |
390 | * Not WDC drives for revisions < 0xC2 | |
391 | * | |
392 | * FIXME: WDC ifdef needs to die | |
393 | */ | |
1da177e4 | 394 | |
2d5eaa6d | 395 | static u8 ali_udma_filter(ide_drive_t *drive) |
1da177e4 | 396 | { |
2d5eaa6d BZ |
397 | if (m5229_revision > 0x20 && m5229_revision < 0xC2) { |
398 | if (drive->media != ide_disk) | |
399 | return 0; | |
400 | #ifndef CONFIG_WDC_ALI15X3 | |
401 | if (chip_is_1543c_e && strstr(drive->id->model, "WDC ")) | |
402 | return 0; | |
403 | #endif | |
1da177e4 LT |
404 | } |
405 | ||
2d5eaa6d | 406 | return drive->hwif->ultra_mask; |
1da177e4 LT |
407 | } |
408 | ||
409 | /** | |
21b82477 | 410 | * ali15x3_tune_chipset - set up chipset/drive for new speed |
1da177e4 LT |
411 | * @drive: drive to configure for |
412 | * @xferspeed: desired speed | |
413 | * | |
414 | * Configure the hardware for the desired IDE transfer mode. | |
415 | * We also do the needed drive configuration through helpers | |
416 | */ | |
417 | ||
418 | static int ali15x3_tune_chipset (ide_drive_t *drive, u8 xferspeed) | |
419 | { | |
420 | ide_hwif_t *hwif = HWIF(drive); | |
421 | struct pci_dev *dev = hwif->pci_dev; | |
2d5eaa6d | 422 | u8 speed = ide_rate_filter(drive, xferspeed); |
1da177e4 LT |
423 | u8 speed1 = speed; |
424 | u8 unit = (drive->select.b.unit & 0x01); | |
425 | u8 tmpbyte = 0x00; | |
426 | int m5229_udma = (hwif->channel) ? 0x57 : 0x56; | |
427 | ||
428 | if (speed == XFER_UDMA_6) | |
429 | speed1 = 0x47; | |
430 | ||
431 | if (speed < XFER_UDMA_0) { | |
432 | u8 ultra_enable = (unit) ? 0x7f : 0xf7; | |
433 | /* | |
434 | * clear "ultra enable" bit | |
435 | */ | |
436 | pci_read_config_byte(dev, m5229_udma, &tmpbyte); | |
437 | tmpbyte &= ultra_enable; | |
438 | pci_write_config_byte(dev, m5229_udma, tmpbyte); | |
439 | ||
440 | if (speed < XFER_SW_DMA_0) | |
21b82477 | 441 | (void) ali15x3_tune_pio(drive, speed - XFER_PIO_0); |
1da177e4 LT |
442 | } else { |
443 | pci_read_config_byte(dev, m5229_udma, &tmpbyte); | |
444 | tmpbyte &= (0x0f << ((1-unit) << 2)); | |
445 | /* | |
446 | * enable ultra dma and set timing | |
447 | */ | |
448 | tmpbyte |= ((0x08 | ((4-speed1)&0x07)) << (unit << 2)); | |
449 | pci_write_config_byte(dev, m5229_udma, tmpbyte); | |
450 | if (speed >= XFER_UDMA_3) { | |
451 | pci_read_config_byte(dev, 0x4b, &tmpbyte); | |
452 | tmpbyte |= 1; | |
453 | pci_write_config_byte(dev, 0x4b, tmpbyte); | |
454 | } | |
455 | } | |
456 | return (ide_config_drive_speed(drive, speed)); | |
457 | } | |
458 | ||
1da177e4 LT |
459 | /** |
460 | * ali15x3_config_drive_for_dma - configure for DMA | |
461 | * @drive: drive to configure | |
462 | * | |
463 | * Configure a drive for DMA operation. If DMA is not possible we | |
464 | * drop the drive into PIO mode instead. | |
1da177e4 | 465 | */ |
3608b5d7 | 466 | |
1da177e4 LT |
467 | static int ali15x3_config_drive_for_dma(ide_drive_t *drive) |
468 | { | |
1da177e4 LT |
469 | drive->init_speed = 0; |
470 | ||
38ff8a74 BZ |
471 | if (ide_tune_dma(drive)) |
472 | return 0; | |
3608b5d7 | 473 | |
38ff8a74 BZ |
474 | ali15x3_tune_drive(drive, 255); |
475 | ||
476 | return -1; | |
1da177e4 LT |
477 | } |
478 | ||
479 | /** | |
480 | * ali15x3_dma_setup - begin a DMA phase | |
481 | * @drive: target device | |
482 | * | |
483 | * Returns 1 if the DMA cannot be performed, zero on success. | |
484 | */ | |
485 | ||
486 | static int ali15x3_dma_setup(ide_drive_t *drive) | |
487 | { | |
488 | if (m5229_revision < 0xC2 && drive->media != ide_disk) { | |
489 | if (rq_data_dir(drive->hwif->hwgroup->rq)) | |
490 | return 1; /* try PIO instead of DMA */ | |
491 | } | |
492 | return ide_dma_setup(drive); | |
493 | } | |
494 | ||
495 | /** | |
496 | * init_chipset_ali15x3 - Initialise an ALi IDE controller | |
497 | * @dev: PCI device | |
498 | * @name: Name of the controller | |
499 | * | |
500 | * This function initializes the ALI IDE controller and where | |
501 | * appropriate also sets up the 1533 southbridge. | |
502 | */ | |
503 | ||
c2f12589 | 504 | static unsigned int __devinit init_chipset_ali15x3 (struct pci_dev *dev, const char *name) |
1da177e4 LT |
505 | { |
506 | unsigned long flags; | |
507 | u8 tmpbyte; | |
b1489009 | 508 | struct pci_dev *north = pci_get_slot(dev->bus, PCI_DEVFN(0,0)); |
1da177e4 | 509 | |
44c10138 | 510 | m5229_revision = dev->revision; |
1da177e4 | 511 | |
b1489009 | 512 | isa_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL); |
1da177e4 | 513 | |
ecfd80e4 | 514 | #if defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_IDE_PROC_FS) |
1da177e4 LT |
515 | if (!ali_proc) { |
516 | ali_proc = 1; | |
517 | bmide_dev = dev; | |
518 | ide_pci_create_host_proc("ali", ali_get_info); | |
519 | } | |
ecfd80e4 | 520 | #endif /* defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_IDE_PROC_FS) */ |
1da177e4 LT |
521 | |
522 | local_irq_save(flags); | |
523 | ||
524 | if (m5229_revision < 0xC2) { | |
525 | /* | |
526 | * revision 0x20 (1543-E, 1543-F) | |
527 | * revision 0xC0, 0xC1 (1543C-C, 1543C-D, 1543C-E) | |
528 | * clear CD-ROM DMA write bit, m5229, 0x4b, bit 7 | |
529 | */ | |
530 | pci_read_config_byte(dev, 0x4b, &tmpbyte); | |
531 | /* | |
532 | * clear bit 7 | |
533 | */ | |
534 | pci_write_config_byte(dev, 0x4b, tmpbyte & 0x7F); | |
b1489009 | 535 | goto out; |
1da177e4 LT |
536 | } |
537 | ||
538 | /* | |
539 | * 1543C-B?, 1535, 1535D, 1553 | |
540 | * Note 1: not all "motherboard" support this detection | |
541 | * Note 2: if no udma 66 device, the detection may "error". | |
542 | * but in this case, we will not set the device to | |
543 | * ultra 66, the detection result is not important | |
544 | */ | |
545 | ||
546 | /* | |
547 | * enable "Cable Detection", m5229, 0x4b, bit3 | |
548 | */ | |
549 | pci_read_config_byte(dev, 0x4b, &tmpbyte); | |
550 | pci_write_config_byte(dev, 0x4b, tmpbyte | 0x08); | |
551 | ||
552 | /* | |
553 | * We should only tune the 1533 enable if we are using an ALi | |
554 | * North bridge. We might have no north found on some zany | |
555 | * box without a device at 0:0.0. The ALi bridge will be at | |
556 | * 0:0.0 so if we didn't find one we know what is cooking. | |
557 | */ | |
b1489009 AC |
558 | if (north && north->vendor != PCI_VENDOR_ID_AL) |
559 | goto out; | |
1da177e4 LT |
560 | |
561 | if (m5229_revision < 0xC5 && isa_dev) | |
562 | { | |
563 | /* | |
564 | * set south-bridge's enable bit, m1533, 0x79 | |
565 | */ | |
566 | ||
567 | pci_read_config_byte(isa_dev, 0x79, &tmpbyte); | |
568 | if (m5229_revision == 0xC2) { | |
569 | /* | |
570 | * 1543C-B0 (m1533, 0x79, bit 2) | |
571 | */ | |
572 | pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x04); | |
573 | } else if (m5229_revision >= 0xC3) { | |
574 | /* | |
575 | * 1553/1535 (m1533, 0x79, bit 1) | |
576 | */ | |
577 | pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x02); | |
578 | } | |
579 | } | |
b1489009 AC |
580 | out: |
581 | pci_dev_put(north); | |
582 | pci_dev_put(isa_dev); | |
1da177e4 LT |
583 | local_irq_restore(flags); |
584 | return 0; | |
585 | } | |
586 | ||
95ba8c17 BZ |
587 | /* |
588 | * Cable special cases | |
589 | */ | |
590 | ||
591 | static struct dmi_system_id cable_dmi_table[] = { | |
592 | { | |
593 | .ident = "HP Pavilion N5430", | |
594 | .matches = { | |
595 | DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), | |
8663fd6d | 596 | DMI_MATCH(DMI_BOARD_VERSION, "OmniBook N32N-736"), |
95ba8c17 BZ |
597 | }, |
598 | }, | |
599 | { } | |
600 | }; | |
601 | ||
602 | static int ali_cable_override(struct pci_dev *pdev) | |
603 | { | |
604 | /* Fujitsu P2000 */ | |
605 | if (pdev->subsystem_vendor == 0x10CF && | |
606 | pdev->subsystem_device == 0x10AF) | |
607 | return 1; | |
608 | ||
609 | /* Systems by DMI */ | |
610 | if (dmi_check_system(cable_dmi_table)) | |
611 | return 1; | |
612 | ||
613 | return 0; | |
614 | } | |
615 | ||
1da177e4 LT |
616 | /** |
617 | * ata66_ali15x3 - check for UDMA 66 support | |
618 | * @hwif: IDE interface | |
619 | * | |
620 | * This checks if the controller and the cable are capable | |
621 | * of UDMA66 transfers. It doesn't check the drives. | |
622 | * But see note 2 below! | |
623 | * | |
624 | * FIXME: frobs bits that are not defined on newer ALi devicea | |
625 | */ | |
626 | ||
49521f97 | 627 | static u8 __devinit ata66_ali15x3(ide_hwif_t *hwif) |
1da177e4 LT |
628 | { |
629 | struct pci_dev *dev = hwif->pci_dev; | |
1da177e4 | 630 | unsigned long flags; |
95ba8c17 | 631 | u8 cbl = ATA_CBL_PATA40, tmpbyte; |
1da177e4 LT |
632 | |
633 | local_irq_save(flags); | |
634 | ||
635 | if (m5229_revision >= 0xC2) { | |
636 | /* | |
95ba8c17 BZ |
637 | * m5229 80-pin cable detection (from Host View) |
638 | * | |
639 | * 0x4a bit0 is 0 => primary channel has 80-pin | |
640 | * 0x4a bit1 is 0 => secondary channel has 80-pin | |
641 | * | |
642 | * Certain laptops use short but suitable cables | |
643 | * and don't implement the detect logic. | |
1da177e4 | 644 | */ |
95ba8c17 BZ |
645 | if (ali_cable_override(dev)) |
646 | cbl = ATA_CBL_PATA40_SHORT; | |
647 | else { | |
648 | pci_read_config_byte(dev, 0x4a, &tmpbyte); | |
649 | if ((tmpbyte & (1 << hwif->channel)) == 0) | |
650 | cbl = ATA_CBL_PATA80; | |
651 | } | |
1da177e4 LT |
652 | } else { |
653 | /* | |
654 | * check m1533, 0x5e, bit 1~4 == 1001 => & 00011110 = 00010010 | |
655 | */ | |
656 | pci_read_config_byte(isa_dev, 0x5e, &tmpbyte); | |
657 | chip_is_1543c_e = ((tmpbyte & 0x1e) == 0x12) ? 1: 0; | |
658 | } | |
659 | ||
660 | /* | |
661 | * CD_ROM DMA on (m5229, 0x53, bit0) | |
662 | * Enable this bit even if we want to use PIO | |
663 | * PIO FIFO off (m5229, 0x53, bit1) | |
664 | * The hardware will use 0x54h and 0x55h to control PIO FIFO | |
665 | * (Not on later devices it seems) | |
666 | * | |
667 | * 0x53 changes meaning on later revs - we must no touch | |
668 | * bit 1 on them. Need to check if 0x20 is the right break | |
669 | */ | |
670 | ||
671 | pci_read_config_byte(dev, 0x53, &tmpbyte); | |
672 | ||
673 | if(m5229_revision <= 0x20) | |
674 | tmpbyte = (tmpbyte & (~0x02)) | 0x01; | |
e11db063 | 675 | else if (m5229_revision == 0xc7 || m5229_revision == 0xc8) |
0d8a95ef | 676 | tmpbyte |= 0x03; |
1da177e4 LT |
677 | else |
678 | tmpbyte |= 0x01; | |
679 | ||
680 | pci_write_config_byte(dev, 0x53, tmpbyte); | |
681 | ||
682 | local_irq_restore(flags); | |
683 | ||
95ba8c17 | 684 | return cbl; |
1da177e4 LT |
685 | } |
686 | ||
687 | /** | |
688 | * init_hwif_common_ali15x3 - Set up ALI IDE hardware | |
689 | * @hwif: IDE interface | |
690 | * | |
691 | * Initialize the IDE structure side of the ALi 15x3 driver. | |
692 | */ | |
693 | ||
c2f12589 | 694 | static void __devinit init_hwif_common_ali15x3 (ide_hwif_t *hwif) |
1da177e4 LT |
695 | { |
696 | hwif->autodma = 0; | |
697 | hwif->tuneproc = &ali15x3_tune_drive; | |
698 | hwif->speedproc = &ali15x3_tune_chipset; | |
2d5eaa6d | 699 | hwif->udma_filter = &ali_udma_filter; |
1da177e4 LT |
700 | |
701 | /* don't use LBA48 DMA on ALi devices before rev 0xC5 */ | |
702 | hwif->no_lba48_dma = (m5229_revision <= 0xC4) ? 1 : 0; | |
703 | ||
704 | if (!hwif->dma_base) { | |
705 | hwif->drives[0].autotune = 1; | |
706 | hwif->drives[1].autotune = 1; | |
707 | return; | |
708 | } | |
709 | ||
38ff8a74 BZ |
710 | if (m5229_revision > 0x20) |
711 | hwif->atapi_dma = 1; | |
1da177e4 | 712 | |
18137207 BZ |
713 | if (m5229_revision <= 0x20) |
714 | hwif->ultra_mask = 0x00; /* no udma */ | |
715 | else if (m5229_revision < 0xC2) | |
716 | hwif->ultra_mask = 0x07; /* udma0-2 */ | |
717 | else if (m5229_revision == 0xC2 || m5229_revision == 0xC3) | |
718 | hwif->ultra_mask = 0x1f; /* udma0-4 */ | |
719 | else if (m5229_revision == 0xC4) | |
720 | hwif->ultra_mask = 0x3f; /* udma0-5 */ | |
721 | else | |
722 | hwif->ultra_mask = 0x7f; /* udma0-6 */ | |
723 | ||
1da177e4 LT |
724 | hwif->mwdma_mask = 0x07; |
725 | hwif->swdma_mask = 0x07; | |
726 | ||
727 | if (m5229_revision >= 0x20) { | |
728 | /* | |
729 | * M1543C or newer for DMAing | |
730 | */ | |
731 | hwif->ide_dma_check = &ali15x3_config_drive_for_dma; | |
732 | hwif->dma_setup = &ali15x3_dma_setup; | |
733 | if (!noautodma) | |
734 | hwif->autodma = 1; | |
49521f97 BZ |
735 | |
736 | if (hwif->cbl != ATA_CBL_PATA40_SHORT) | |
737 | hwif->cbl = ata66_ali15x3(hwif); | |
1da177e4 LT |
738 | } |
739 | hwif->drives[0].autodma = hwif->autodma; | |
740 | hwif->drives[1].autodma = hwif->autodma; | |
741 | } | |
742 | ||
743 | /** | |
744 | * init_hwif_ali15x3 - Initialize the ALI IDE x86 stuff | |
745 | * @hwif: interface to configure | |
746 | * | |
747 | * Obtain the IRQ tables for an ALi based IDE solution on the PC | |
748 | * class platforms. This part of the code isn't applicable to the | |
749 | * Sparc systems | |
750 | */ | |
751 | ||
c2f12589 | 752 | static void __devinit init_hwif_ali15x3 (ide_hwif_t *hwif) |
1da177e4 LT |
753 | { |
754 | u8 ideic, inmir; | |
755 | s8 irq_routing_table[] = { -1, 9, 3, 10, 4, 5, 7, 6, | |
756 | 1, 11, 0, 12, 0, 14, 0, 15 }; | |
757 | int irq = -1; | |
758 | ||
759 | if (hwif->pci_dev->device == PCI_DEVICE_ID_AL_M5229) | |
760 | hwif->irq = hwif->channel ? 15 : 14; | |
761 | ||
762 | if (isa_dev) { | |
763 | /* | |
764 | * read IDE interface control | |
765 | */ | |
766 | pci_read_config_byte(isa_dev, 0x58, &ideic); | |
767 | ||
768 | /* bit0, bit1 */ | |
769 | ideic = ideic & 0x03; | |
770 | ||
771 | /* get IRQ for IDE Controller */ | |
772 | if ((hwif->channel && ideic == 0x03) || | |
773 | (!hwif->channel && !ideic)) { | |
774 | /* | |
775 | * get SIRQ1 routing table | |
776 | */ | |
777 | pci_read_config_byte(isa_dev, 0x44, &inmir); | |
778 | inmir = inmir & 0x0f; | |
779 | irq = irq_routing_table[inmir]; | |
780 | } else if (hwif->channel && !(ideic & 0x01)) { | |
781 | /* | |
782 | * get SIRQ2 routing table | |
783 | */ | |
784 | pci_read_config_byte(isa_dev, 0x75, &inmir); | |
785 | inmir = inmir & 0x0f; | |
786 | irq = irq_routing_table[inmir]; | |
787 | } | |
788 | if(irq >= 0) | |
789 | hwif->irq = irq; | |
790 | } | |
791 | ||
792 | init_hwif_common_ali15x3(hwif); | |
793 | } | |
794 | ||
795 | /** | |
796 | * init_dma_ali15x3 - set up DMA on ALi15x3 | |
797 | * @hwif: IDE interface | |
798 | * @dmabase: DMA interface base PCI address | |
799 | * | |
800 | * Set up the DMA functionality on the ALi 15x3. For the ALi | |
801 | * controllers this is generic so we can let the generic code do | |
802 | * the actual work. | |
803 | */ | |
804 | ||
c2f12589 | 805 | static void __devinit init_dma_ali15x3 (ide_hwif_t *hwif, unsigned long dmabase) |
1da177e4 LT |
806 | { |
807 | if (m5229_revision < 0x20) | |
808 | return; | |
0ecdca26 BZ |
809 | if (!hwif->channel) |
810 | outb(inb(dmabase + 2) & 0x60, dmabase + 2); | |
1da177e4 LT |
811 | ide_setup_dma(hwif, dmabase, 8); |
812 | } | |
813 | ||
814 | static ide_pci_device_t ali15x3_chipset __devinitdata = { | |
815 | .name = "ALI15X3", | |
816 | .init_chipset = init_chipset_ali15x3, | |
817 | .init_hwif = init_hwif_ali15x3, | |
818 | .init_dma = init_dma_ali15x3, | |
1da177e4 LT |
819 | .autodma = AUTODMA, |
820 | .bootable = ON_BOARD, | |
4099d143 | 821 | .pio_mask = ATA_PIO5, |
1da177e4 LT |
822 | }; |
823 | ||
824 | /** | |
825 | * alim15x3_init_one - set up an ALi15x3 IDE controller | |
826 | * @dev: PCI device to set up | |
827 | * | |
828 | * Perform the actual set up for an ALi15x3 that has been found by the | |
829 | * hot plug layer. | |
830 | */ | |
831 | ||
832 | static int __devinit alim15x3_init_one(struct pci_dev *dev, const struct pci_device_id *id) | |
833 | { | |
cc3f7ca5 HL |
834 | static struct pci_device_id ati_rs100[] = { |
835 | { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100) }, | |
836 | { }, | |
837 | }; | |
838 | ||
1da177e4 LT |
839 | ide_pci_device_t *d = &ali15x3_chipset; |
840 | ||
cc3f7ca5 | 841 | if (pci_dev_present(ati_rs100)) |
2fefef18 | 842 | printk(KERN_WARNING "alim15x3: ATI Radeon IGP Northbridge is not yet fully tested.\n"); |
1da177e4 LT |
843 | |
844 | #if defined(CONFIG_SPARC64) | |
845 | d->init_hwif = init_hwif_common_ali15x3; | |
846 | #endif /* CONFIG_SPARC64 */ | |
847 | return ide_setup_pci_device(dev, d); | |
848 | } | |
849 | ||
850 | ||
851 | static struct pci_device_id alim15x3_pci_tbl[] = { | |
852 | { PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5229, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, | |
853 | { PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5228, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, | |
854 | { 0, }, | |
855 | }; | |
856 | MODULE_DEVICE_TABLE(pci, alim15x3_pci_tbl); | |
857 | ||
858 | static struct pci_driver driver = { | |
859 | .name = "ALI15x3_IDE", | |
860 | .id_table = alim15x3_pci_tbl, | |
861 | .probe = alim15x3_init_one, | |
862 | }; | |
863 | ||
82ab1eec | 864 | static int __init ali15x3_ide_init(void) |
1da177e4 LT |
865 | { |
866 | return ide_pci_register_driver(&driver); | |
867 | } | |
868 | ||
869 | module_init(ali15x3_ide_init); | |
870 | ||
871 | MODULE_AUTHOR("Michael Aubry, Andrzej Krzysztofowicz, CJ, Andre Hedrick, Alan Cox"); | |
872 | MODULE_DESCRIPTION("PCI driver module for ALi 15x3 IDE"); | |
873 | MODULE_LICENSE("GPL"); |