2 * linux/drivers/ide/pci/hpt366.c Version 1.30 Dec 12, 2007
4 * Copyright (C) 1999-2003 Andre Hedrick <andre@linux-ide.org>
5 * Portions Copyright (C) 2001 Sun Microsystems, Inc.
6 * Portions Copyright (C) 2003 Red Hat Inc
7 * Portions Copyright (C) 2007 Bartlomiej Zolnierkiewicz
8 * Portions Copyright (C) 2005-2007 MontaVista Software, Inc.
10 * Thanks to HighPoint Technologies for their assistance, and hardware.
11 * Special Thanks to Jon Burchmore in SanDiego for the deep pockets, his
12 * donation of an ABit BP6 mainboard, processor, and memory acellerated
13 * development and support.
16 * HighPoint has its own drivers (open source except for the RAID part)
17 * available from http://www.highpoint-tech.com/BIOS%20+%20Driver/.
18 * This may be useful to anyone wanting to work on this driver, however do not
19 * trust them too much since the code tends to become less and less meaningful
20 * as the time passes... :-/
22 * Note that final HPT370 support was done by force extraction of GPL.
24 * - add function for getting/setting power status of drive
25 * - the HPT370's state machine can get confused. reset it before each dma
26 * xfer to prevent that from happening.
27 * - reset state engine whenever we get an error.
28 * - check for busmaster state at end of dma.
29 * - use new highpoint timings.
30 * - detect bus speed using highpoint register.
31 * - use pll if we don't have a clock table. added a 66MHz table that's
32 * just 2x the 33MHz table.
33 * - removed turnaround. NOTE: we never want to switch between pll and
34 * pci clocks as the chip can glitch in those cases. the highpoint
35 * approved workaround slows everything down too much to be useful. in
36 * addition, we would have to serialize access to each chip.
37 * Adrian Sun <a.sun@sun.com>
39 * add drive timings for 66MHz PCI bus,
40 * fix ATA Cable signal detection, fix incorrect /proc info
41 * add /proc display for per-drive PIO/DMA/UDMA mode and
42 * per-channel ATA-33/66 Cable detect.
43 * Duncan Laurie <void@sun.com>
45 * fixup /proc output for multiple controllers
46 * Tim Hockin <thockin@sun.com>
49 * Reset the hpt366 on error, reset on dma
50 * Fix disabling Fast Interrupt hpt366.
51 * Mike Waychison <crlf@sun.com>
53 * Added support for 372N clocking and clock switching. The 372N needs
54 * different clocks on read/write. This requires overloading rw_disk and
55 * other deeply crazy things. Thanks to <http://www.hoerstreich.de> for
57 * Alan Cox <alan@redhat.com>
59 * - fix the clock turnaround code: it was writing to the wrong ports when
60 * called for the secondary channel, caching the current clock mode per-
61 * channel caused the cached register value to get out of sync with the
62 * actual one, the channels weren't serialized, the turnaround shouldn't
63 * be done on 66 MHz PCI bus
64 * - disable UltraATA/100 for HPT370 by default as the 33 MHz clock being used
65 * does not allow for this speed anyway
66 * - avoid touching disabled channels (e.g. HPT371/N are single channel chips,
67 * their primary channel is kind of virtual, it isn't tied to any pins)
68 * - fix/remove bad/unused timing tables and use one set of tables for the whole
69 * HPT37x chip family; save space by introducing the separate transfer mode
70 * table in which the mode lookup is done
71 * - use f_CNT value saved by the HighPoint BIOS as reading it directly gives
72 * the wrong PCI frequency since DPLL has already been calibrated by BIOS;
73 * read it only from the function 0 of HPT374 chips
74 * - fix the hotswap code: it caused RESET- to glitch when tristating the bus,
75 * and for HPT36x the obsolete HDIO_TRISTATE_HWIF handler was called instead
76 * - pass to init_chipset() handlers a copy of the IDE PCI device structure as
77 * they tamper with its fields
78 * - pass to the init_setup handlers a copy of the ide_pci_device_t structure
79 * since they may tamper with its fields
80 * - prefix the driver startup messages with the real chip name
81 * - claim the extra 240 bytes of I/O space for all chips
82 * - optimize the UltraDMA filtering and the drive list lookup code
83 * - use pci_get_slot() to get to the function 1 of HPT36x/374
84 * - cache offset of the channel's misc. control registers (MCRs) being used
85 * throughout the driver
86 * - only touch the relevant MCR when detecting the cable type on HPT374's
88 * - rename all the register related variables consistently
89 * - move all the interrupt twiddling code from the speedproc handlers into
90 * init_hwif_hpt366(), also grouping all the DMA related code together there
91 * - merge HPT36x/HPT37x speedproc handlers, fix PIO timing register mask and
92 * separate the UltraDMA and MWDMA masks there to avoid changing PIO timings
93 * when setting an UltraDMA mode
94 * - fix hpt3xx_tune_drive() to set the PIO mode requested, not always select
95 * the best possible one
96 * - clean up DMA timeout handling for HPT370
97 * - switch to using the enumeration type to differ between the numerous chip
98 * variants, matching PCI device/revision ID with the chip type early, at the
100 * - extend the hpt_info structure to hold the DPLL and PCI clock frequencies,
101 * stop duplicating it for each channel by storing the pointer in the pci_dev
102 * structure: first, at the init_setup stage, point it to a static "template"
103 * with only the chip type and its specific base DPLL frequency, the highest
104 * UltraDMA mode, and the chip settings table pointer filled, then, at the
105 * init_chipset stage, allocate per-chip instance and fill it with the rest
106 * of the necessary information
107 * - get rid of the constant thresholds in the HPT37x PCI clock detection code,
108 * switch to calculating PCI clock frequency based on the chip's base DPLL
110 * - switch to using the DPLL clock and enable UltraATA/133 mode by default on
111 * anything newer than HPT370/A (except HPT374 that is not capable of this
112 * mode according to the manual)
113 * - fold PCI clock detection and DPLL setup code into init_chipset_hpt366(),
114 * also fixing the interchanged 25/40 MHz PCI clock cases for HPT36x chips;
115 * unify HPT36x/37x timing setup code and the speedproc handlers by joining
116 * the register setting lists into the table indexed by the clock selected
117 * - set the correct hwif->ultra_mask for each individual chip
118 * - add Ultra and MW DMA mode filtering for the HPT37[24] based SATA cards
119 * Sergei Shtylyov, <sshtylyov@ru.mvista.com> or <source@mvista.com>
122 #include <linux/types.h>
123 #include <linux/module.h>
124 #include <linux/kernel.h>
125 #include <linux/delay.h>
126 #include <linux/timer.h>
127 #include <linux/mm.h>
128 #include <linux/ioport.h>
129 #include <linux/blkdev.h>
130 #include <linux/hdreg.h>
132 #include <linux/interrupt.h>
133 #include <linux/pci.h>
134 #include <linux/init.h>
135 #include <linux/ide.h>
137 #include <asm/uaccess.h>
141 /* various tuning parameters */
142 #define HPT_RESET_STATE_ENGINE
143 #undef HPT_DELAY_INTERRUPT
144 #define HPT_SERIALIZE_IO 0
146 static const char *quirk_drives[] = {
147 "QUANTUM FIREBALLlct08 08",
148 "QUANTUM FIREBALLP KA6.4",
149 "QUANTUM FIREBALLP LM20.4",
150 "QUANTUM FIREBALLP LM20.5",
154 static const char *bad_ata100_5[] = {
173 static const char *bad_ata66_4[] = {
189 "MAXTOR STM3320620A",
193 static const char *bad_ata66_3[] = {
198 static const char *bad_ata33[] = {
199 "Maxtor 92720U8", "Maxtor 92040U6", "Maxtor 91360U4", "Maxtor 91020U3", "Maxtor 90845U3", "Maxtor 90650U2",
200 "Maxtor 91360D8", "Maxtor 91190D7", "Maxtor 91020D6", "Maxtor 90845D5", "Maxtor 90680D4", "Maxtor 90510D3", "Maxtor 90340D2",
201 "Maxtor 91152D8", "Maxtor 91008D7", "Maxtor 90845D6", "Maxtor 90840D6", "Maxtor 90720D5", "Maxtor 90648D5", "Maxtor 90576D4",
203 "Maxtor 90432D3", "Maxtor 90288D2", "Maxtor 90256D2",
204 "Maxtor 91000D8", "Maxtor 90910D8", "Maxtor 90875D7", "Maxtor 90840D7", "Maxtor 90750D6", "Maxtor 90625D5", "Maxtor 90500D4",
205 "Maxtor 91728D8", "Maxtor 91512D7", "Maxtor 91303D6", "Maxtor 91080D5", "Maxtor 90845D4", "Maxtor 90680D4", "Maxtor 90648D3", "Maxtor 90432D2",
209 static u8 xfer_speeds[] = {
229 /* Key for bus clock timings
232 * 0:3 0:3 data_high_time. Inactive time of DIOW_/DIOR_ for PIO and MW DMA.
234 * 4:7 4:8 data_low_time. Active time of DIOW_/DIOR_ for PIO and MW DMA.
236 * 8:11 9:12 cmd_high_time. Inactive time of DIOW_/DIOR_ during task file
238 * 12:15 13:17 cmd_low_time. Active time of DIOW_/DIOR_ during task file
240 * 16:18 18:20 udma_cycle_time. Clock cycles for UDMA xfer.
241 * - 21 CLK frequency: 0=ATA clock, 1=dual ATA clock.
242 * 19:21 22:24 pre_high_time. Time to initialize the 1st cycle for PIO and
244 * 22:24 25:27 cmd_pre_high_time. Time to initialize the 1st PIO cycle for
245 * task file register access.
248 * 30 30 PIO MST enable. If set, the chip is in bus master mode during
253 static u32 forty_base_hpt36x[] = {
254 /* XFER_UDMA_6 */ 0x900fd943,
255 /* XFER_UDMA_5 */ 0x900fd943,
256 /* XFER_UDMA_4 */ 0x900fd943,
257 /* XFER_UDMA_3 */ 0x900ad943,
258 /* XFER_UDMA_2 */ 0x900bd943,
259 /* XFER_UDMA_1 */ 0x9008d943,
260 /* XFER_UDMA_0 */ 0x9008d943,
262 /* XFER_MW_DMA_2 */ 0xa008d943,
263 /* XFER_MW_DMA_1 */ 0xa010d955,
264 /* XFER_MW_DMA_0 */ 0xa010d9fc,
266 /* XFER_PIO_4 */ 0xc008d963,
267 /* XFER_PIO_3 */ 0xc010d974,
268 /* XFER_PIO_2 */ 0xc010d997,
269 /* XFER_PIO_1 */ 0xc010d9c7,
270 /* XFER_PIO_0 */ 0xc018d9d9
273 static u32 thirty_three_base_hpt36x[] = {
274 /* XFER_UDMA_6 */ 0x90c9a731,
275 /* XFER_UDMA_5 */ 0x90c9a731,
276 /* XFER_UDMA_4 */ 0x90c9a731,
277 /* XFER_UDMA_3 */ 0x90cfa731,
278 /* XFER_UDMA_2 */ 0x90caa731,
279 /* XFER_UDMA_1 */ 0x90cba731,
280 /* XFER_UDMA_0 */ 0x90c8a731,
282 /* XFER_MW_DMA_2 */ 0xa0c8a731,
283 /* XFER_MW_DMA_1 */ 0xa0c8a732, /* 0xa0c8a733 */
284 /* XFER_MW_DMA_0 */ 0xa0c8a797,
286 /* XFER_PIO_4 */ 0xc0c8a731,
287 /* XFER_PIO_3 */ 0xc0c8a742,
288 /* XFER_PIO_2 */ 0xc0d0a753,
289 /* XFER_PIO_1 */ 0xc0d0a7a3, /* 0xc0d0a793 */
290 /* XFER_PIO_0 */ 0xc0d0a7aa /* 0xc0d0a7a7 */
293 static u32 twenty_five_base_hpt36x[] = {
294 /* XFER_UDMA_6 */ 0x90c98521,
295 /* XFER_UDMA_5 */ 0x90c98521,
296 /* XFER_UDMA_4 */ 0x90c98521,
297 /* XFER_UDMA_3 */ 0x90cf8521,
298 /* XFER_UDMA_2 */ 0x90cf8521,
299 /* XFER_UDMA_1 */ 0x90cb8521,
300 /* XFER_UDMA_0 */ 0x90cb8521,
302 /* XFER_MW_DMA_2 */ 0xa0ca8521,
303 /* XFER_MW_DMA_1 */ 0xa0ca8532,
304 /* XFER_MW_DMA_0 */ 0xa0ca8575,
306 /* XFER_PIO_4 */ 0xc0ca8521,
307 /* XFER_PIO_3 */ 0xc0ca8532,
308 /* XFER_PIO_2 */ 0xc0ca8542,
309 /* XFER_PIO_1 */ 0xc0d08572,
310 /* XFER_PIO_0 */ 0xc0d08585
314 /* These are the timing tables from the HighPoint open source drivers... */
315 static u32 thirty_three_base_hpt37x[] = {
316 /* XFER_UDMA_6 */ 0x12446231, /* 0x12646231 ?? */
317 /* XFER_UDMA_5 */ 0x12446231,
318 /* XFER_UDMA_4 */ 0x12446231,
319 /* XFER_UDMA_3 */ 0x126c6231,
320 /* XFER_UDMA_2 */ 0x12486231,
321 /* XFER_UDMA_1 */ 0x124c6233,
322 /* XFER_UDMA_0 */ 0x12506297,
324 /* XFER_MW_DMA_2 */ 0x22406c31,
325 /* XFER_MW_DMA_1 */ 0x22406c33,
326 /* XFER_MW_DMA_0 */ 0x22406c97,
328 /* XFER_PIO_4 */ 0x06414e31,
329 /* XFER_PIO_3 */ 0x06414e42,
330 /* XFER_PIO_2 */ 0x06414e53,
331 /* XFER_PIO_1 */ 0x06814e93,
332 /* XFER_PIO_0 */ 0x06814ea7
335 static u32 fifty_base_hpt37x[] = {
336 /* XFER_UDMA_6 */ 0x12848242,
337 /* XFER_UDMA_5 */ 0x12848242,
338 /* XFER_UDMA_4 */ 0x12ac8242,
339 /* XFER_UDMA_3 */ 0x128c8242,
340 /* XFER_UDMA_2 */ 0x120c8242,
341 /* XFER_UDMA_1 */ 0x12148254,
342 /* XFER_UDMA_0 */ 0x121882ea,
344 /* XFER_MW_DMA_2 */ 0x22808242,
345 /* XFER_MW_DMA_1 */ 0x22808254,
346 /* XFER_MW_DMA_0 */ 0x228082ea,
348 /* XFER_PIO_4 */ 0x0a81f442,
349 /* XFER_PIO_3 */ 0x0a81f443,
350 /* XFER_PIO_2 */ 0x0a81f454,
351 /* XFER_PIO_1 */ 0x0ac1f465,
352 /* XFER_PIO_0 */ 0x0ac1f48a
355 static u32 sixty_six_base_hpt37x[] = {
356 /* XFER_UDMA_6 */ 0x1c869c62,
357 /* XFER_UDMA_5 */ 0x1cae9c62, /* 0x1c8a9c62 */
358 /* XFER_UDMA_4 */ 0x1c8a9c62,
359 /* XFER_UDMA_3 */ 0x1c8e9c62,
360 /* XFER_UDMA_2 */ 0x1c929c62,
361 /* XFER_UDMA_1 */ 0x1c9a9c62,
362 /* XFER_UDMA_0 */ 0x1c829c62,
364 /* XFER_MW_DMA_2 */ 0x2c829c62,
365 /* XFER_MW_DMA_1 */ 0x2c829c66,
366 /* XFER_MW_DMA_0 */ 0x2c829d2e,
368 /* XFER_PIO_4 */ 0x0c829c62,
369 /* XFER_PIO_3 */ 0x0c829c84,
370 /* XFER_PIO_2 */ 0x0c829ca6,
371 /* XFER_PIO_1 */ 0x0d029d26,
372 /* XFER_PIO_0 */ 0x0d029d5e
376 * The following are the new timing tables with PIO mode data/taskfile transfer
377 * overclocking fixed...
380 /* This table is taken from the HPT370 data manual rev. 1.02 */
381 static u32 thirty_three_base_hpt37x[] = {
382 /* XFER_UDMA_6 */ 0x16455031, /* 0x16655031 ?? */
383 /* XFER_UDMA_5 */ 0x16455031,
384 /* XFER_UDMA_4 */ 0x16455031,
385 /* XFER_UDMA_3 */ 0x166d5031,
386 /* XFER_UDMA_2 */ 0x16495031,
387 /* XFER_UDMA_1 */ 0x164d5033,
388 /* XFER_UDMA_0 */ 0x16515097,
390 /* XFER_MW_DMA_2 */ 0x26515031,
391 /* XFER_MW_DMA_1 */ 0x26515033,
392 /* XFER_MW_DMA_0 */ 0x26515097,
394 /* XFER_PIO_4 */ 0x06515021,
395 /* XFER_PIO_3 */ 0x06515022,
396 /* XFER_PIO_2 */ 0x06515033,
397 /* XFER_PIO_1 */ 0x06915065,
398 /* XFER_PIO_0 */ 0x06d1508a
401 static u32 fifty_base_hpt37x[] = {
402 /* XFER_UDMA_6 */ 0x1a861842,
403 /* XFER_UDMA_5 */ 0x1a861842,
404 /* XFER_UDMA_4 */ 0x1aae1842,
405 /* XFER_UDMA_3 */ 0x1a8e1842,
406 /* XFER_UDMA_2 */ 0x1a0e1842,
407 /* XFER_UDMA_1 */ 0x1a161854,
408 /* XFER_UDMA_0 */ 0x1a1a18ea,
410 /* XFER_MW_DMA_2 */ 0x2a821842,
411 /* XFER_MW_DMA_1 */ 0x2a821854,
412 /* XFER_MW_DMA_0 */ 0x2a8218ea,
414 /* XFER_PIO_4 */ 0x0a821842,
415 /* XFER_PIO_3 */ 0x0a821843,
416 /* XFER_PIO_2 */ 0x0a821855,
417 /* XFER_PIO_1 */ 0x0ac218a8,
418 /* XFER_PIO_0 */ 0x0b02190c
421 static u32 sixty_six_base_hpt37x[] = {
422 /* XFER_UDMA_6 */ 0x1c86fe62,
423 /* XFER_UDMA_5 */ 0x1caefe62, /* 0x1c8afe62 */
424 /* XFER_UDMA_4 */ 0x1c8afe62,
425 /* XFER_UDMA_3 */ 0x1c8efe62,
426 /* XFER_UDMA_2 */ 0x1c92fe62,
427 /* XFER_UDMA_1 */ 0x1c9afe62,
428 /* XFER_UDMA_0 */ 0x1c82fe62,
430 /* XFER_MW_DMA_2 */ 0x2c82fe62,
431 /* XFER_MW_DMA_1 */ 0x2c82fe66,
432 /* XFER_MW_DMA_0 */ 0x2c82ff2e,
434 /* XFER_PIO_4 */ 0x0c82fe62,
435 /* XFER_PIO_3 */ 0x0c82fe84,
436 /* XFER_PIO_2 */ 0x0c82fea6,
437 /* XFER_PIO_1 */ 0x0d02ff26,
438 /* XFER_PIO_0 */ 0x0d42ff7f
442 #define HPT366_DEBUG_DRIVE_INFO 0
443 #define HPT371_ALLOW_ATA133_6 1
444 #define HPT302_ALLOW_ATA133_6 1
445 #define HPT372_ALLOW_ATA133_6 1
446 #define HPT370_ALLOW_ATA100_5 0
447 #define HPT366_ALLOW_ATA66_4 1
448 #define HPT366_ALLOW_ATA66_3 1
449 #define HPT366_MAX_DEVS 8
451 /* Supported ATA clock frequencies */
465 u32 *clock_table[NUM_ATA_CLOCKS];
469 * Hold all the HighPoint chip information in one place.
473 char *chip_name; /* Chip name */
474 u8 chip_type; /* Chip type */
475 u8 udma_mask; /* Allowed UltraDMA modes mask. */
476 u8 dpll_clk; /* DPLL clock in MHz */
477 u8 pci_clk; /* PCI clock in MHz */
478 struct hpt_timings *timings; /* Chipset timing data */
479 u8 clock; /* ATA clock selected */
482 /* Supported HighPoint chips */
497 static struct hpt_timings hpt36x_timings = {
498 .pio_mask = 0xc1f8ffff,
499 .dma_mask = 0x303800ff,
500 .ultra_mask = 0x30070000,
502 [ATA_CLOCK_25MHZ] = twenty_five_base_hpt36x,
503 [ATA_CLOCK_33MHZ] = thirty_three_base_hpt36x,
504 [ATA_CLOCK_40MHZ] = forty_base_hpt36x,
505 [ATA_CLOCK_50MHZ] = NULL,
506 [ATA_CLOCK_66MHZ] = NULL
510 static struct hpt_timings hpt37x_timings = {
511 .pio_mask = 0xcfc3ffff,
512 .dma_mask = 0x31c001ff,
513 .ultra_mask = 0x303c0000,
515 [ATA_CLOCK_25MHZ] = NULL,
516 [ATA_CLOCK_33MHZ] = thirty_three_base_hpt37x,
517 [ATA_CLOCK_40MHZ] = NULL,
518 [ATA_CLOCK_50MHZ] = fifty_base_hpt37x,
519 [ATA_CLOCK_66MHZ] = sixty_six_base_hpt37x
523 static const struct hpt_info hpt36x __devinitdata = {
524 .chip_name = "HPT36x",
526 .udma_mask = HPT366_ALLOW_ATA66_3 ? (HPT366_ALLOW_ATA66_4 ? ATA_UDMA4 : ATA_UDMA3) : ATA_UDMA2,
527 .dpll_clk = 0, /* no DPLL */
528 .timings = &hpt36x_timings
531 static const struct hpt_info hpt370 __devinitdata = {
532 .chip_name = "HPT370",
534 .udma_mask = HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4,
536 .timings = &hpt37x_timings
539 static const struct hpt_info hpt370a __devinitdata = {
540 .chip_name = "HPT370A",
541 .chip_type = HPT370A,
542 .udma_mask = HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4,
544 .timings = &hpt37x_timings
547 static const struct hpt_info hpt374 __devinitdata = {
548 .chip_name = "HPT374",
550 .udma_mask = ATA_UDMA5,
552 .timings = &hpt37x_timings
555 static const struct hpt_info hpt372 __devinitdata = {
556 .chip_name = "HPT372",
558 .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
560 .timings = &hpt37x_timings
563 static const struct hpt_info hpt372a __devinitdata = {
564 .chip_name = "HPT372A",
565 .chip_type = HPT372A,
566 .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
568 .timings = &hpt37x_timings
571 static const struct hpt_info hpt302 __devinitdata = {
572 .chip_name = "HPT302",
574 .udma_mask = HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
576 .timings = &hpt37x_timings
579 static const struct hpt_info hpt371 __devinitdata = {
580 .chip_name = "HPT371",
582 .udma_mask = HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
584 .timings = &hpt37x_timings
587 static const struct hpt_info hpt372n __devinitdata = {
588 .chip_name = "HPT372N",
589 .chip_type = HPT372N,
590 .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
592 .timings = &hpt37x_timings
595 static const struct hpt_info hpt302n __devinitdata = {
596 .chip_name = "HPT302N",
597 .chip_type = HPT302N,
598 .udma_mask = HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
600 .timings = &hpt37x_timings
603 static const struct hpt_info hpt371n __devinitdata = {
604 .chip_name = "HPT371N",
605 .chip_type = HPT371N,
606 .udma_mask = HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
608 .timings = &hpt37x_timings
611 static int check_in_drive_list(ide_drive_t *drive, const char **list)
613 struct hd_driveid *id = drive->id;
616 if (!strcmp(*list++,id->model))
622 * The Marvell bridge chips used on the HighPoint SATA cards do not seem
623 * to support the UltraDMA modes 1, 2, and 3 as well as any MWDMA modes...
626 static u8 hpt3xx_udma_filter(ide_drive_t *drive)
628 ide_hwif_t *hwif = HWIF(drive);
629 struct hpt_info *info = pci_get_drvdata(hwif->pci_dev);
630 u8 mask = hwif->ultra_mask;
632 switch (info->chip_type) {
634 if (!HPT366_ALLOW_ATA66_4 ||
635 check_in_drive_list(drive, bad_ata66_4))
638 if (!HPT366_ALLOW_ATA66_3 ||
639 check_in_drive_list(drive, bad_ata66_3))
643 if (!HPT370_ALLOW_ATA100_5 ||
644 check_in_drive_list(drive, bad_ata100_5))
648 if (!HPT370_ALLOW_ATA100_5 ||
649 check_in_drive_list(drive, bad_ata100_5))
655 if (ide_dev_is_sata(drive->id))
662 return check_in_drive_list(drive, bad_ata33) ? 0x00 : mask;
665 static u8 hpt3xx_mdma_filter(ide_drive_t *drive)
667 ide_hwif_t *hwif = HWIF(drive);
668 struct hpt_info *info = pci_get_drvdata(hwif->pci_dev);
670 switch (info->chip_type) {
675 if (ide_dev_is_sata(drive->id))
683 static u32 get_speed_setting(u8 speed, struct hpt_info *info)
688 * Lookup the transfer mode table to get the index into
691 * NOTE: For XFER_PIO_SLOW, PIO mode 0 timings will be used.
693 for (i = 0; i < ARRAY_SIZE(xfer_speeds) - 1; i++)
694 if (xfer_speeds[i] == speed)
697 return info->timings->clock_table[info->clock][i];
700 static void hpt3xx_set_mode(ide_drive_t *drive, const u8 speed)
702 struct pci_dev *dev = HWIF(drive)->pci_dev;
703 struct hpt_info *info = pci_get_drvdata(dev);
704 struct hpt_timings *t = info->timings;
705 u8 itr_addr = 0x40 + (drive->dn * 4);
707 u32 new_itr = get_speed_setting(speed, info);
708 u32 itr_mask = speed < XFER_MW_DMA_0 ? t->pio_mask :
709 (speed < XFER_UDMA_0 ? t->dma_mask :
712 pci_read_config_dword(dev, itr_addr, &old_itr);
713 new_itr = (old_itr & ~itr_mask) | (new_itr & itr_mask);
715 * Disable on-chip PIO FIFO/buffer (and PIO MST mode as well)
716 * to avoid problems handling I/O errors later
718 new_itr &= ~0xc0000000;
720 pci_write_config_dword(dev, itr_addr, new_itr);
723 static void hpt3xx_set_pio_mode(ide_drive_t *drive, const u8 pio)
725 hpt3xx_set_mode(drive, XFER_PIO_0 + pio);
728 static int hpt3xx_quirkproc(ide_drive_t *drive)
730 struct hd_driveid *id = drive->id;
731 const char **list = quirk_drives;
734 if (strstr(id->model, *list++))
739 static void hpt3xx_intrproc(ide_drive_t *drive)
741 if (drive->quirk_list)
744 /* drives in the quirk_list may not like intr setups/cleanups */
745 outb(drive->ctl | 2, IDE_CONTROL_REG);
748 static void hpt3xx_maskproc(ide_drive_t *drive, int mask)
750 ide_hwif_t *hwif = HWIF(drive);
751 struct pci_dev *dev = hwif->pci_dev;
752 struct hpt_info *info = pci_get_drvdata(dev);
754 if (drive->quirk_list) {
755 if (info->chip_type >= HPT370) {
758 pci_read_config_byte(dev, 0x5a, &scr1);
759 if (((scr1 & 0x10) >> 4) != mask) {
764 pci_write_config_byte(dev, 0x5a, scr1);
768 disable_irq(hwif->irq);
770 enable_irq (hwif->irq);
773 outb(mask ? (drive->ctl | 2) : (drive->ctl & ~2),
778 * This is specific to the HPT366 UDMA chipset
779 * by HighPoint|Triones Technologies, Inc.
781 static void hpt366_dma_lost_irq(ide_drive_t *drive)
783 struct pci_dev *dev = HWIF(drive)->pci_dev;
784 u8 mcr1 = 0, mcr3 = 0, scr1 = 0;
786 pci_read_config_byte(dev, 0x50, &mcr1);
787 pci_read_config_byte(dev, 0x52, &mcr3);
788 pci_read_config_byte(dev, 0x5a, &scr1);
789 printk("%s: (%s) mcr1=0x%02x, mcr3=0x%02x, scr1=0x%02x\n",
790 drive->name, __FUNCTION__, mcr1, mcr3, scr1);
792 pci_write_config_byte(dev, 0x5a, scr1 & ~0x10);
793 ide_dma_lost_irq(drive);
796 static void hpt370_clear_engine(ide_drive_t *drive)
798 ide_hwif_t *hwif = HWIF(drive);
800 pci_write_config_byte(hwif->pci_dev, hwif->select_data, 0x37);
804 static void hpt370_irq_timeout(ide_drive_t *drive)
806 ide_hwif_t *hwif = HWIF(drive);
810 pci_read_config_word(hwif->pci_dev, hwif->select_data + 2, &bfifo);
811 printk(KERN_DEBUG "%s: %d bytes in FIFO\n", drive->name, bfifo & 0x1ff);
813 /* get DMA command mode */
814 dma_cmd = inb(hwif->dma_command);
816 outb(dma_cmd & ~0x1, hwif->dma_command);
817 hpt370_clear_engine(drive);
820 static void hpt370_ide_dma_start(ide_drive_t *drive)
822 #ifdef HPT_RESET_STATE_ENGINE
823 hpt370_clear_engine(drive);
825 ide_dma_start(drive);
828 static int hpt370_ide_dma_end(ide_drive_t *drive)
830 ide_hwif_t *hwif = HWIF(drive);
831 u8 dma_stat = inb(hwif->dma_status);
833 if (dma_stat & 0x01) {
836 dma_stat = inb(hwif->dma_status);
838 hpt370_irq_timeout(drive);
840 return __ide_dma_end(drive);
843 static void hpt370_dma_timeout(ide_drive_t *drive)
845 hpt370_irq_timeout(drive);
846 ide_dma_timeout(drive);
849 /* returns 1 if DMA IRQ issued, 0 otherwise */
850 static int hpt374_ide_dma_test_irq(ide_drive_t *drive)
852 ide_hwif_t *hwif = HWIF(drive);
856 pci_read_config_word(hwif->pci_dev, hwif->select_data + 2, &bfifo);
858 // printk("%s: %d bytes in FIFO\n", drive->name, bfifo);
862 dma_stat = inb(hwif->dma_status);
863 /* return 1 if INTR asserted */
867 if (!drive->waiting_for_dma)
868 printk(KERN_WARNING "%s: (%s) called while not waiting\n",
869 drive->name, __FUNCTION__);
873 static int hpt374_ide_dma_end(ide_drive_t *drive)
875 ide_hwif_t *hwif = HWIF(drive);
876 struct pci_dev *dev = hwif->pci_dev;
877 u8 mcr = 0, mcr_addr = hwif->select_data;
878 u8 bwsr = 0, mask = hwif->channel ? 0x02 : 0x01;
880 pci_read_config_byte(dev, 0x6a, &bwsr);
881 pci_read_config_byte(dev, mcr_addr, &mcr);
883 pci_write_config_byte(dev, mcr_addr, mcr | 0x30);
884 return __ide_dma_end(drive);
888 * hpt3xxn_set_clock - perform clock switching dance
889 * @hwif: hwif to switch
890 * @mode: clocking mode (0x21 for write, 0x23 otherwise)
892 * Switch the DPLL clock on the HPT3xxN devices. This is a right mess.
895 static void hpt3xxn_set_clock(ide_hwif_t *hwif, u8 mode)
897 u8 scr2 = inb(hwif->dma_master + 0x7b);
899 if ((scr2 & 0x7f) == mode)
902 /* Tristate the bus */
903 outb(0x80, hwif->dma_master + 0x73);
904 outb(0x80, hwif->dma_master + 0x77);
906 /* Switch clock and reset channels */
907 outb(mode, hwif->dma_master + 0x7b);
908 outb(0xc0, hwif->dma_master + 0x79);
911 * Reset the state machines.
912 * NOTE: avoid accidentally enabling the disabled channels.
914 outb(inb(hwif->dma_master + 0x70) | 0x32, hwif->dma_master + 0x70);
915 outb(inb(hwif->dma_master + 0x74) | 0x32, hwif->dma_master + 0x74);
918 outb(0x00, hwif->dma_master + 0x79);
920 /* Reconnect channels to bus */
921 outb(0x00, hwif->dma_master + 0x73);
922 outb(0x00, hwif->dma_master + 0x77);
926 * hpt3xxn_rw_disk - prepare for I/O
927 * @drive: drive for command
928 * @rq: block request structure
930 * This is called when a disk I/O is issued to HPT3xxN.
931 * We need it because of the clock switching.
934 static void hpt3xxn_rw_disk(ide_drive_t *drive, struct request *rq)
936 hpt3xxn_set_clock(HWIF(drive), rq_data_dir(rq) ? 0x23 : 0x21);
940 * Set/get power state for a drive.
941 * NOTE: affects both drives on each channel.
943 * When we turn the power back on, we need to re-initialize things.
945 #define TRISTATE_BIT 0x8000
947 static int hpt3xx_busproc(ide_drive_t *drive, int state)
949 ide_hwif_t *hwif = HWIF(drive);
950 struct pci_dev *dev = hwif->pci_dev;
951 u8 mcr_addr = hwif->select_data + 2;
952 u8 resetmask = hwif->channel ? 0x80 : 0x40;
956 hwif->bus_state = state;
958 /* Grab the status. */
959 pci_read_config_word(dev, mcr_addr, &mcr);
960 pci_read_config_byte(dev, 0x59, &bsr2);
963 * Set the state. We don't set it if we don't need to do so.
964 * Make sure that the drive knows that it has failed if it's off.
968 if (!(bsr2 & resetmask))
970 hwif->drives[0].failures = hwif->drives[1].failures = 0;
972 pci_write_config_byte(dev, 0x59, bsr2 & ~resetmask);
973 pci_write_config_word(dev, mcr_addr, mcr & ~TRISTATE_BIT);
976 if ((bsr2 & resetmask) && !(mcr & TRISTATE_BIT))
978 mcr &= ~TRISTATE_BIT;
980 case BUSSTATE_TRISTATE:
981 if ((bsr2 & resetmask) && (mcr & TRISTATE_BIT))
989 hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
990 hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
992 pci_write_config_word(dev, mcr_addr, mcr);
993 pci_write_config_byte(dev, 0x59, bsr2 | resetmask);
998 * hpt37x_calibrate_dpll - calibrate the DPLL
1001 * Perform a calibration cycle on the DPLL.
1002 * Returns 1 if this succeeds
1004 static int __devinit hpt37x_calibrate_dpll(struct pci_dev *dev, u16 f_low, u16 f_high)
1006 u32 dpll = (f_high << 16) | f_low | 0x100;
1010 pci_write_config_dword(dev, 0x5c, dpll);
1012 /* Wait for oscillator ready */
1013 for(i = 0; i < 0x5000; ++i) {
1015 pci_read_config_byte(dev, 0x5b, &scr2);
1019 /* See if it stays ready (we'll just bail out if it's not yet) */
1020 for(i = 0; i < 0x1000; ++i) {
1021 pci_read_config_byte(dev, 0x5b, &scr2);
1022 /* DPLL destabilized? */
1026 /* Turn off tuning, we have the DPLL set */
1027 pci_read_config_dword (dev, 0x5c, &dpll);
1028 pci_write_config_dword(dev, 0x5c, (dpll & ~0x100));
1032 static unsigned int __devinit init_chipset_hpt366(struct pci_dev *dev, const char *name)
1034 struct hpt_info *info = kmalloc(sizeof(struct hpt_info), GFP_KERNEL);
1035 unsigned long io_base = pci_resource_start(dev, 4);
1036 u8 pci_clk, dpll_clk = 0; /* PCI and DPLL clock in MHz */
1038 enum ata_clock clock;
1041 printk(KERN_ERR "%s: out of memory!\n", name);
1046 * Copy everything from a static "template" structure
1047 * to just allocated per-chip hpt_info structure.
1049 memcpy(info, pci_get_drvdata(dev), sizeof(struct hpt_info));
1050 chip_type = info->chip_type;
1052 pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4));
1053 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78);
1054 pci_write_config_byte(dev, PCI_MIN_GNT, 0x08);
1055 pci_write_config_byte(dev, PCI_MAX_LAT, 0x08);
1058 * First, try to estimate the PCI clock frequency...
1060 if (chip_type >= HPT370) {
1065 /* Interrupt force enable. */
1066 pci_read_config_byte(dev, 0x5a, &scr1);
1068 pci_write_config_byte(dev, 0x5a, scr1 & ~0x10);
1071 * HighPoint does this for HPT372A.
1072 * NOTE: This register is only writeable via I/O space.
1074 if (chip_type == HPT372A)
1075 outb(0x0e, io_base + 0x9c);
1078 * Default to PCI clock. Make sure MA15/16 are set to output
1079 * to prevent drives having problems with 40-pin cables.
1081 pci_write_config_byte(dev, 0x5b, 0x23);
1084 * We'll have to read f_CNT value in order to determine
1085 * the PCI clock frequency according to the following ratio:
1087 * f_CNT = Fpci * 192 / Fdpll
1089 * First try reading the register in which the HighPoint BIOS
1090 * saves f_CNT value before reprogramming the DPLL from its
1091 * default setting (which differs for the various chips).
1093 * NOTE: This register is only accessible via I/O space;
1094 * HPT374 BIOS only saves it for the function 0, so we have to
1095 * always read it from there -- no need to check the result of
1096 * pci_get_slot() for the function 0 as the whole device has
1097 * been already "pinned" (via function 1) in init_setup_hpt374()
1099 if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) {
1100 struct pci_dev *dev1 = pci_get_slot(dev->bus,
1102 unsigned long io_base = pci_resource_start(dev1, 4);
1104 temp = inl(io_base + 0x90);
1107 temp = inl(io_base + 0x90);
1110 * In case the signature check fails, we'll have to
1111 * resort to reading the f_CNT register itself in hopes
1112 * that nobody has touched the DPLL yet...
1114 if ((temp & 0xFFFFF000) != 0xABCDE000) {
1117 printk(KERN_WARNING "%s: no clock data saved by BIOS\n",
1120 /* Calculate the average value of f_CNT. */
1121 for (temp = i = 0; i < 128; i++) {
1122 pci_read_config_word(dev, 0x78, &f_cnt);
1123 temp += f_cnt & 0x1ff;
1128 f_cnt = temp & 0x1ff;
1130 dpll_clk = info->dpll_clk;
1131 pci_clk = (f_cnt * dpll_clk) / 192;
1133 /* Clamp PCI clock to bands. */
1136 else if(pci_clk < 45)
1138 else if(pci_clk < 55)
1143 printk(KERN_INFO "%s: DPLL base: %d MHz, f_CNT: %d, "
1144 "assuming %d MHz PCI\n", name, dpll_clk, f_cnt, pci_clk);
1148 pci_read_config_dword(dev, 0x40, &itr1);
1150 /* Detect PCI clock by looking at cmd_high_time. */
1151 switch((itr1 >> 8) & 0x07) {
1165 /* Let's assume we'll use PCI clock for the ATA clock... */
1168 clock = ATA_CLOCK_25MHZ;
1172 clock = ATA_CLOCK_33MHZ;
1175 clock = ATA_CLOCK_40MHZ;
1178 clock = ATA_CLOCK_50MHZ;
1181 clock = ATA_CLOCK_66MHZ;
1186 * Only try the DPLL if we don't have a table for the PCI clock that
1187 * we are running at for HPT370/A, always use it for anything newer...
1189 * NOTE: Using the internal DPLL results in slow reads on 33 MHz PCI.
1190 * We also don't like using the DPLL because this causes glitches
1191 * on PRST-/SRST- when the state engine gets reset...
1193 if (chip_type >= HPT374 || info->timings->clock_table[clock] == NULL) {
1194 u16 f_low, delta = pci_clk < 50 ? 2 : 4;
1198 * Select 66 MHz DPLL clock only if UltraATA/133 mode is
1199 * supported/enabled, use 50 MHz DPLL clock otherwise...
1201 if (info->udma_mask == ATA_UDMA6) {
1203 clock = ATA_CLOCK_66MHZ;
1204 } else if (dpll_clk) { /* HPT36x chips don't have DPLL */
1206 clock = ATA_CLOCK_50MHZ;
1209 if (info->timings->clock_table[clock] == NULL) {
1210 printk(KERN_ERR "%s: unknown bus timing!\n", name);
1215 /* Select the DPLL clock. */
1216 pci_write_config_byte(dev, 0x5b, 0x21);
1219 * Adjust the DPLL based upon PCI clock, enable it,
1220 * and wait for stabilization...
1222 f_low = (pci_clk * 48) / dpll_clk;
1224 for (adjust = 0; adjust < 8; adjust++) {
1225 if(hpt37x_calibrate_dpll(dev, f_low, f_low + delta))
1229 * See if it'll settle at a fractionally different clock
1232 f_low -= adjust >> 1;
1234 f_low += adjust >> 1;
1237 printk(KERN_ERR "%s: DPLL did not stabilize!\n", name);
1242 printk("%s: using %d MHz DPLL clock\n", name, dpll_clk);
1244 /* Mark the fact that we're not using the DPLL. */
1247 printk("%s: using %d MHz PCI clock\n", name, pci_clk);
1250 /* Store the clock frequencies. */
1251 info->dpll_clk = dpll_clk;
1252 info->pci_clk = pci_clk;
1253 info->clock = clock;
1255 /* Point to this chip's own instance of the hpt_info structure. */
1256 pci_set_drvdata(dev, info);
1258 if (chip_type >= HPT370) {
1262 * Reset the state engines.
1263 * NOTE: Avoid accidentally enabling the disabled channels.
1265 pci_read_config_byte (dev, 0x50, &mcr1);
1266 pci_read_config_byte (dev, 0x54, &mcr4);
1267 pci_write_config_byte(dev, 0x50, (mcr1 | 0x32));
1268 pci_write_config_byte(dev, 0x54, (mcr4 | 0x32));
1273 * On HPT371N, if ATA clock is 66 MHz we must set bit 2 in
1274 * the MISC. register to stretch the UltraDMA Tss timing.
1275 * NOTE: This register is only writeable via I/O space.
1277 if (chip_type == HPT371N && clock == ATA_CLOCK_66MHZ)
1279 outb(inb(io_base + 0x9c) | 0x04, io_base + 0x9c);
1284 static void __devinit init_hwif_hpt366(ide_hwif_t *hwif)
1286 struct pci_dev *dev = hwif->pci_dev;
1287 struct hpt_info *info = pci_get_drvdata(dev);
1288 int serialize = HPT_SERIALIZE_IO;
1289 u8 scr1 = 0, ata66 = hwif->channel ? 0x01 : 0x02;
1290 u8 chip_type = info->chip_type;
1291 u8 new_mcr, old_mcr = 0;
1293 /* Cache the channel's MISC. control registers' offset */
1294 hwif->select_data = hwif->channel ? 0x54 : 0x50;
1296 hwif->set_pio_mode = &hpt3xx_set_pio_mode;
1297 hwif->set_dma_mode = &hpt3xx_set_mode;
1299 hwif->quirkproc = &hpt3xx_quirkproc;
1300 hwif->intrproc = &hpt3xx_intrproc;
1301 hwif->maskproc = &hpt3xx_maskproc;
1302 hwif->busproc = &hpt3xx_busproc;
1304 hwif->udma_filter = &hpt3xx_udma_filter;
1305 hwif->mdma_filter = &hpt3xx_mdma_filter;
1308 * HPT3xxN chips have some complications:
1310 * - on 33 MHz PCI we must clock switch
1311 * - on 66 MHz PCI we must NOT use the PCI clock
1313 if (chip_type >= HPT372N && info->dpll_clk && info->pci_clk < 66) {
1315 * Clock is shared between the channels,
1316 * so we'll have to serialize them... :-(
1319 hwif->rw_disk = &hpt3xxn_rw_disk;
1322 /* Serialize access to this device if needed */
1323 if (serialize && hwif->mate)
1324 hwif->serialized = hwif->mate->serialized = 1;
1327 * Disable the "fast interrupt" prediction. Don't hold off
1328 * on interrupts. (== 0x01 despite what the docs say)
1330 pci_read_config_byte(dev, hwif->select_data + 1, &old_mcr);
1332 if (info->chip_type >= HPT374)
1333 new_mcr = old_mcr & ~0x07;
1334 else if (info->chip_type >= HPT370) {
1338 #ifdef HPT_DELAY_INTERRUPT
1343 } else /* HPT366 and HPT368 */
1344 new_mcr = old_mcr & ~0x80;
1346 if (new_mcr != old_mcr)
1347 pci_write_config_byte(dev, hwif->select_data + 1, new_mcr);
1349 if (hwif->dma_base == 0)
1353 * The HPT37x uses the CBLID pins as outputs for MA15/MA16
1354 * address lines to access an external EEPROM. To read valid
1355 * cable detect state the pins must be enabled as inputs.
1357 if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) {
1359 * HPT374 PCI function 1
1360 * - set bit 15 of reg 0x52 to enable TCBLID as input
1361 * - set bit 15 of reg 0x56 to enable FCBLID as input
1363 u8 mcr_addr = hwif->select_data + 2;
1366 pci_read_config_word (dev, mcr_addr, &mcr);
1367 pci_write_config_word(dev, mcr_addr, (mcr | 0x8000));
1368 /* now read cable id register */
1369 pci_read_config_byte (dev, 0x5a, &scr1);
1370 pci_write_config_word(dev, mcr_addr, mcr);
1371 } else if (chip_type >= HPT370) {
1373 * HPT370/372 and 374 pcifn 0
1374 * - clear bit 0 of reg 0x5b to enable P/SCBLID as inputs
1378 pci_read_config_byte (dev, 0x5b, &scr2);
1379 pci_write_config_byte(dev, 0x5b, (scr2 & ~1));
1380 /* now read cable id register */
1381 pci_read_config_byte (dev, 0x5a, &scr1);
1382 pci_write_config_byte(dev, 0x5b, scr2);
1384 pci_read_config_byte (dev, 0x5a, &scr1);
1386 if (hwif->cbl != ATA_CBL_PATA40_SHORT)
1387 hwif->cbl = (scr1 & ata66) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
1389 if (chip_type >= HPT374) {
1390 hwif->ide_dma_test_irq = &hpt374_ide_dma_test_irq;
1391 hwif->ide_dma_end = &hpt374_ide_dma_end;
1392 } else if (chip_type >= HPT370) {
1393 hwif->dma_start = &hpt370_ide_dma_start;
1394 hwif->ide_dma_end = &hpt370_ide_dma_end;
1395 hwif->dma_timeout = &hpt370_dma_timeout;
1397 hwif->dma_lost_irq = &hpt366_dma_lost_irq;
1400 static void __devinit init_dma_hpt366(ide_hwif_t *hwif, unsigned long dmabase)
1402 struct pci_dev *dev = hwif->pci_dev;
1403 u8 masterdma = 0, slavedma = 0;
1404 u8 dma_new = 0, dma_old = 0;
1405 unsigned long flags;
1407 dma_old = inb(dmabase + 2);
1409 local_irq_save(flags);
1412 pci_read_config_byte(dev, hwif->channel ? 0x4b : 0x43, &masterdma);
1413 pci_read_config_byte(dev, hwif->channel ? 0x4f : 0x47, &slavedma);
1415 if (masterdma & 0x30) dma_new |= 0x20;
1416 if ( slavedma & 0x30) dma_new |= 0x40;
1417 if (dma_new != dma_old)
1418 outb(dma_new, dmabase + 2);
1420 local_irq_restore(flags);
1422 ide_setup_dma(hwif, dmabase, 8);
1425 static void __devinit hpt374_init(struct pci_dev *dev, struct pci_dev *dev2)
1427 if (dev2->irq != dev->irq) {
1428 /* FIXME: we need a core pci_set_interrupt() */
1429 dev2->irq = dev->irq;
1430 printk(KERN_INFO "HPT374: PCI config space interrupt fixed\n");
1434 static void __devinit hpt371_init(struct pci_dev *dev)
1439 * HPT371 chips physically have only one channel, the secondary one,
1440 * but the primary channel registers do exist! Go figure...
1441 * So, we manually disable the non-existing channel here
1442 * (if the BIOS hasn't done this already).
1444 pci_read_config_byte(dev, 0x50, &mcr1);
1446 pci_write_config_byte(dev, 0x50, mcr1 & ~0x04);
1449 static int __devinit hpt36x_init(struct pci_dev *dev, struct pci_dev *dev2)
1451 u8 mcr1 = 0, pin1 = 0, pin2 = 0;
1454 * Now we'll have to force both channels enabled if
1455 * at least one of them has been enabled by BIOS...
1457 pci_read_config_byte(dev, 0x50, &mcr1);
1459 pci_write_config_byte(dev, 0x50, mcr1 | 0x30);
1461 pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin1);
1462 pci_read_config_byte(dev2, PCI_INTERRUPT_PIN, &pin2);
1464 if (pin1 != pin2 && dev->irq == dev2->irq) {
1465 printk(KERN_INFO "HPT36x: onboard version of chipset, "
1466 "pin1=%d pin2=%d\n", pin1, pin2);
1473 static const struct ide_port_info hpt366_chipsets[] __devinitdata = {
1476 .init_chipset = init_chipset_hpt366,
1477 .init_hwif = init_hwif_hpt366,
1478 .init_dma = init_dma_hpt366,
1480 * HPT36x chips have one channel per function and have
1481 * both channel enable bits located differently and visible
1482 * to both functions -- really stupid design decision... :-(
1483 * Bit 4 is for the primary channel, bit 5 for the secondary.
1485 .enablebits = {{0x50,0x10,0x10}, {0x54,0x04,0x04}},
1487 .host_flags = IDE_HFLAG_SINGLE |
1488 IDE_HFLAG_NO_ATAPI_DMA |
1489 IDE_HFLAG_OFF_BOARD,
1490 .pio_mask = ATA_PIO4,
1491 .mwdma_mask = ATA_MWDMA2,
1494 .init_chipset = init_chipset_hpt366,
1495 .init_hwif = init_hwif_hpt366,
1496 .init_dma = init_dma_hpt366,
1497 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
1499 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD,
1500 .pio_mask = ATA_PIO4,
1501 .mwdma_mask = ATA_MWDMA2,
1504 .init_chipset = init_chipset_hpt366,
1505 .init_hwif = init_hwif_hpt366,
1506 .init_dma = init_dma_hpt366,
1507 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
1509 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD,
1510 .pio_mask = ATA_PIO4,
1511 .mwdma_mask = ATA_MWDMA2,
1514 .init_chipset = init_chipset_hpt366,
1515 .init_hwif = init_hwif_hpt366,
1516 .init_dma = init_dma_hpt366,
1517 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
1519 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD,
1520 .pio_mask = ATA_PIO4,
1521 .mwdma_mask = ATA_MWDMA2,
1524 .init_chipset = init_chipset_hpt366,
1525 .init_hwif = init_hwif_hpt366,
1526 .init_dma = init_dma_hpt366,
1527 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
1528 .udma_mask = ATA_UDMA5,
1530 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD,
1531 .pio_mask = ATA_PIO4,
1532 .mwdma_mask = ATA_MWDMA2,
1535 .init_chipset = init_chipset_hpt366,
1536 .init_hwif = init_hwif_hpt366,
1537 .init_dma = init_dma_hpt366,
1538 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
1540 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD,
1541 .pio_mask = ATA_PIO4,
1542 .mwdma_mask = ATA_MWDMA2,
1547 * hpt366_init_one - called when an HPT366 is found
1548 * @dev: the hpt366 device
1549 * @id: the matching pci id
1551 * Called when the PCI registration layer (or the IDE initialization)
1552 * finds a device matching our IDE device tables.
1554 static int __devinit hpt366_init_one(struct pci_dev *dev, const struct pci_device_id *id)
1556 const struct hpt_info *info = NULL;
1557 struct pci_dev *dev2 = NULL;
1558 struct ide_port_info d;
1559 u8 idx = id->driver_data;
1560 u8 rev = dev->revision;
1562 if ((idx == 0 || idx == 4) && (PCI_FUNC(dev->devfn) & 1))
1570 static const struct hpt_info *hpt37x_info[] =
1571 { &hpt370, &hpt370a, &hpt372, &hpt372n };
1573 info = hpt37x_info[min_t(u8, rev, 6) - 3];
1578 info = (rev > 1) ? &hpt372n : &hpt372a;
1581 info = (rev > 1) ? &hpt302n : &hpt302;
1585 info = (rev > 1) ? &hpt371n : &hpt371;
1595 d = hpt366_chipsets[idx];
1597 d.name = info->chip_name;
1598 d.udma_mask = info->udma_mask;
1600 pci_set_drvdata(dev, (void *)info);
1602 if (info == &hpt36x || info == &hpt374)
1603 dev2 = pci_get_slot(dev->bus, dev->devfn + 1);
1608 pci_set_drvdata(dev2, (void *)info);
1610 if (info == &hpt374)
1611 hpt374_init(dev, dev2);
1613 if (hpt36x_init(dev, dev2))
1614 d.host_flags |= IDE_HFLAG_BOOTABLE;
1617 ret = ide_setup_pci_devices(dev, dev2, &d);
1623 return ide_setup_pci_device(dev, &d);
1626 static const struct pci_device_id hpt366_pci_tbl[] = {
1627 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT366), 0 },
1628 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT372), 1 },
1629 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT302), 2 },
1630 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT371), 3 },
1631 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT374), 4 },
1632 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT372N), 5 },
1635 MODULE_DEVICE_TABLE(pci, hpt366_pci_tbl);
1637 static struct pci_driver driver = {
1638 .name = "HPT366_IDE",
1639 .id_table = hpt366_pci_tbl,
1640 .probe = hpt366_init_one,
1643 static int __init hpt366_ide_init(void)
1645 return ide_pci_register_driver(&driver);
1648 module_init(hpt366_ide_init);
1650 MODULE_AUTHOR("Andre Hedrick");
1651 MODULE_DESCRIPTION("PCI driver module for Highpoint HPT366 IDE");
1652 MODULE_LICENSE("GPL");