2 * linux/drivers/ide/pci/hpt366.c Version 1.24 Dec 8, 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 two HPT37x speedproc handlers, fix the 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 */
462 * Hold all the HighPoint chip information in one place.
466 char *chip_name; /* Chip name */
467 u8 chip_type; /* Chip type */
468 u8 udma_mask; /* Allowed UltraDMA modes mask. */
469 u8 dpll_clk; /* DPLL clock in MHz */
470 u8 pci_clk; /* PCI clock in MHz */
471 u32 **settings; /* Chipset settings table */
474 /* Supported HighPoint chips */
489 static u32 *hpt36x_settings[NUM_ATA_CLOCKS] = {
490 twenty_five_base_hpt36x,
491 thirty_three_base_hpt36x,
497 static u32 *hpt37x_settings[NUM_ATA_CLOCKS] = {
499 thirty_three_base_hpt37x,
502 sixty_six_base_hpt37x
505 static const struct hpt_info hpt36x __devinitdata = {
506 .chip_name = "HPT36x",
508 .udma_mask = HPT366_ALLOW_ATA66_3 ? (HPT366_ALLOW_ATA66_4 ? ATA_UDMA4 : ATA_UDMA3) : ATA_UDMA2,
509 .dpll_clk = 0, /* no DPLL */
510 .settings = hpt36x_settings
513 static const struct hpt_info hpt370 __devinitdata = {
514 .chip_name = "HPT370",
516 .udma_mask = HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4,
518 .settings = hpt37x_settings
521 static const struct hpt_info hpt370a __devinitdata = {
522 .chip_name = "HPT370A",
523 .chip_type = HPT370A,
524 .udma_mask = HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4,
526 .settings = hpt37x_settings
529 static const struct hpt_info hpt374 __devinitdata = {
530 .chip_name = "HPT374",
532 .udma_mask = ATA_UDMA5,
534 .settings = hpt37x_settings
537 static const struct hpt_info hpt372 __devinitdata = {
538 .chip_name = "HPT372",
540 .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
542 .settings = hpt37x_settings
545 static const struct hpt_info hpt372a __devinitdata = {
546 .chip_name = "HPT372A",
547 .chip_type = HPT372A,
548 .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
550 .settings = hpt37x_settings
553 static const struct hpt_info hpt302 __devinitdata = {
554 .chip_name = "HPT302",
556 .udma_mask = HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
558 .settings = hpt37x_settings
561 static const struct hpt_info hpt371 __devinitdata = {
562 .chip_name = "HPT371",
564 .udma_mask = HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
566 .settings = hpt37x_settings
569 static const struct hpt_info hpt372n __devinitdata = {
570 .chip_name = "HPT372N",
571 .chip_type = HPT372N,
572 .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
574 .settings = hpt37x_settings
577 static const struct hpt_info hpt302n __devinitdata = {
578 .chip_name = "HPT302N",
579 .chip_type = HPT302N,
580 .udma_mask = HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
582 .settings = hpt37x_settings
585 static const struct hpt_info hpt371n __devinitdata = {
586 .chip_name = "HPT371N",
587 .chip_type = HPT371N,
588 .udma_mask = HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
590 .settings = hpt37x_settings
593 static int check_in_drive_list(ide_drive_t *drive, const char **list)
595 struct hd_driveid *id = drive->id;
598 if (!strcmp(*list++,id->model))
604 * The Marvell bridge chips used on the HighPoint SATA cards do not seem
605 * to support the UltraDMA modes 1, 2, and 3 as well as any MWDMA modes...
608 static u8 hpt3xx_udma_filter(ide_drive_t *drive)
610 ide_hwif_t *hwif = HWIF(drive);
611 struct hpt_info *info = pci_get_drvdata(hwif->pci_dev);
612 u8 mask = hwif->ultra_mask;
614 switch (info->chip_type) {
616 if (!HPT366_ALLOW_ATA66_4 ||
617 check_in_drive_list(drive, bad_ata66_4))
620 if (!HPT366_ALLOW_ATA66_3 ||
621 check_in_drive_list(drive, bad_ata66_3))
625 if (!HPT370_ALLOW_ATA100_5 ||
626 check_in_drive_list(drive, bad_ata100_5))
630 if (!HPT370_ALLOW_ATA100_5 ||
631 check_in_drive_list(drive, bad_ata100_5))
637 if (ide_dev_is_sata(drive->id))
644 return check_in_drive_list(drive, bad_ata33) ? 0x00 : mask;
647 static u8 hpt3xx_mdma_filter(ide_drive_t *drive)
649 ide_hwif_t *hwif = HWIF(drive);
650 struct hpt_info *info = pci_get_drvdata(hwif->pci_dev);
652 switch (info->chip_type) {
657 if (ide_dev_is_sata(drive->id))
665 static u32 get_speed_setting(u8 speed, struct hpt_info *info)
670 * Lookup the transfer mode table to get the index into
673 * NOTE: For XFER_PIO_SLOW, PIO mode 0 timings will be used.
675 for (i = 0; i < ARRAY_SIZE(xfer_speeds) - 1; i++)
676 if (xfer_speeds[i] == speed)
679 * NOTE: info->settings only points to the pointer
680 * to the list of the actual register values
682 return (*info->settings)[i];
685 static void hpt36x_set_mode(ide_drive_t *drive, const u8 speed)
687 ide_hwif_t *hwif = HWIF(drive);
688 struct pci_dev *dev = hwif->pci_dev;
689 struct hpt_info *info = pci_get_drvdata(dev);
690 u8 itr_addr = drive->dn ? 0x44 : 0x40;
692 u32 new_itr = get_speed_setting(speed, info);
693 u32 itr_mask = speed < XFER_MW_DMA_0 ? 0xc1f8ffff :
694 (speed < XFER_UDMA_0 ? 0x303800ff :
697 pci_read_config_dword(dev, itr_addr, &old_itr);
698 new_itr = (old_itr & ~itr_mask) | (new_itr & itr_mask);
700 * Disable on-chip PIO FIFO/buffer (and PIO MST mode as well)
701 * to avoid problems handling I/O errors later
703 new_itr &= ~0xc0000000;
705 pci_write_config_dword(dev, itr_addr, new_itr);
708 static void hpt37x_set_mode(ide_drive_t *drive, const u8 speed)
710 ide_hwif_t *hwif = HWIF(drive);
711 struct pci_dev *dev = hwif->pci_dev;
712 struct hpt_info *info = pci_get_drvdata(dev);
713 u8 itr_addr = 0x40 + (drive->dn * 4);
715 u32 new_itr = get_speed_setting(speed, info);
716 u32 itr_mask = speed < XFER_MW_DMA_0 ? 0xcfc3ffff :
717 (speed < XFER_UDMA_0 ? 0x31c001ff :
720 pci_read_config_dword(dev, itr_addr, &old_itr);
721 new_itr = (old_itr & ~itr_mask) | (new_itr & itr_mask);
723 if (speed < XFER_MW_DMA_0)
724 new_itr &= ~0x80000000; /* Disable on-chip PIO FIFO/buffer */
725 pci_write_config_dword(dev, itr_addr, new_itr);
728 static void hpt3xx_set_pio_mode(ide_drive_t *drive, const u8 pio)
730 HWIF(drive)->set_dma_mode(drive, XFER_PIO_0 + pio);
733 static int hpt3xx_quirkproc(ide_drive_t *drive)
735 struct hd_driveid *id = drive->id;
736 const char **list = quirk_drives;
739 if (strstr(id->model, *list++))
744 static void hpt3xx_intrproc(ide_drive_t *drive)
746 if (drive->quirk_list)
749 /* drives in the quirk_list may not like intr setups/cleanups */
750 outb(drive->ctl | 2, IDE_CONTROL_REG);
753 static void hpt3xx_maskproc(ide_drive_t *drive, int mask)
755 ide_hwif_t *hwif = HWIF(drive);
756 struct pci_dev *dev = hwif->pci_dev;
757 struct hpt_info *info = pci_get_drvdata(dev);
759 if (drive->quirk_list) {
760 if (info->chip_type >= HPT370) {
763 pci_read_config_byte(dev, 0x5a, &scr1);
764 if (((scr1 & 0x10) >> 4) != mask) {
769 pci_write_config_byte(dev, 0x5a, scr1);
773 disable_irq(hwif->irq);
775 enable_irq (hwif->irq);
778 outb(mask ? (drive->ctl | 2) : (drive->ctl & ~2),
783 * This is specific to the HPT366 UDMA chipset
784 * by HighPoint|Triones Technologies, Inc.
786 static void hpt366_dma_lost_irq(ide_drive_t *drive)
788 struct pci_dev *dev = HWIF(drive)->pci_dev;
789 u8 mcr1 = 0, mcr3 = 0, scr1 = 0;
791 pci_read_config_byte(dev, 0x50, &mcr1);
792 pci_read_config_byte(dev, 0x52, &mcr3);
793 pci_read_config_byte(dev, 0x5a, &scr1);
794 printk("%s: (%s) mcr1=0x%02x, mcr3=0x%02x, scr1=0x%02x\n",
795 drive->name, __FUNCTION__, mcr1, mcr3, scr1);
797 pci_write_config_byte(dev, 0x5a, scr1 & ~0x10);
798 ide_dma_lost_irq(drive);
801 static void hpt370_clear_engine(ide_drive_t *drive)
803 ide_hwif_t *hwif = HWIF(drive);
805 pci_write_config_byte(hwif->pci_dev, hwif->select_data, 0x37);
809 static void hpt370_irq_timeout(ide_drive_t *drive)
811 ide_hwif_t *hwif = HWIF(drive);
815 pci_read_config_word(hwif->pci_dev, hwif->select_data + 2, &bfifo);
816 printk(KERN_DEBUG "%s: %d bytes in FIFO\n", drive->name, bfifo & 0x1ff);
818 /* get DMA command mode */
819 dma_cmd = inb(hwif->dma_command);
821 outb(dma_cmd & ~0x1, hwif->dma_command);
822 hpt370_clear_engine(drive);
825 static void hpt370_ide_dma_start(ide_drive_t *drive)
827 #ifdef HPT_RESET_STATE_ENGINE
828 hpt370_clear_engine(drive);
830 ide_dma_start(drive);
833 static int hpt370_ide_dma_end(ide_drive_t *drive)
835 ide_hwif_t *hwif = HWIF(drive);
836 u8 dma_stat = inb(hwif->dma_status);
838 if (dma_stat & 0x01) {
841 dma_stat = inb(hwif->dma_status);
843 hpt370_irq_timeout(drive);
845 return __ide_dma_end(drive);
848 static void hpt370_dma_timeout(ide_drive_t *drive)
850 hpt370_irq_timeout(drive);
851 ide_dma_timeout(drive);
854 /* returns 1 if DMA IRQ issued, 0 otherwise */
855 static int hpt374_ide_dma_test_irq(ide_drive_t *drive)
857 ide_hwif_t *hwif = HWIF(drive);
861 pci_read_config_word(hwif->pci_dev, hwif->select_data + 2, &bfifo);
863 // printk("%s: %d bytes in FIFO\n", drive->name, bfifo);
867 dma_stat = inb(hwif->dma_status);
868 /* return 1 if INTR asserted */
872 if (!drive->waiting_for_dma)
873 printk(KERN_WARNING "%s: (%s) called while not waiting\n",
874 drive->name, __FUNCTION__);
878 static int hpt374_ide_dma_end(ide_drive_t *drive)
880 ide_hwif_t *hwif = HWIF(drive);
881 struct pci_dev *dev = hwif->pci_dev;
882 u8 mcr = 0, mcr_addr = hwif->select_data;
883 u8 bwsr = 0, mask = hwif->channel ? 0x02 : 0x01;
885 pci_read_config_byte(dev, 0x6a, &bwsr);
886 pci_read_config_byte(dev, mcr_addr, &mcr);
888 pci_write_config_byte(dev, mcr_addr, mcr | 0x30);
889 return __ide_dma_end(drive);
893 * hpt3xxn_set_clock - perform clock switching dance
894 * @hwif: hwif to switch
895 * @mode: clocking mode (0x21 for write, 0x23 otherwise)
897 * Switch the DPLL clock on the HPT3xxN devices. This is a right mess.
900 static void hpt3xxn_set_clock(ide_hwif_t *hwif, u8 mode)
902 u8 scr2 = inb(hwif->dma_master + 0x7b);
904 if ((scr2 & 0x7f) == mode)
907 /* Tristate the bus */
908 outb(0x80, hwif->dma_master + 0x73);
909 outb(0x80, hwif->dma_master + 0x77);
911 /* Switch clock and reset channels */
912 outb(mode, hwif->dma_master + 0x7b);
913 outb(0xc0, hwif->dma_master + 0x79);
916 * Reset the state machines.
917 * NOTE: avoid accidentally enabling the disabled channels.
919 outb(inb(hwif->dma_master + 0x70) | 0x32, hwif->dma_master + 0x70);
920 outb(inb(hwif->dma_master + 0x74) | 0x32, hwif->dma_master + 0x74);
923 outb(0x00, hwif->dma_master + 0x79);
925 /* Reconnect channels to bus */
926 outb(0x00, hwif->dma_master + 0x73);
927 outb(0x00, hwif->dma_master + 0x77);
931 * hpt3xxn_rw_disk - prepare for I/O
932 * @drive: drive for command
933 * @rq: block request structure
935 * This is called when a disk I/O is issued to HPT3xxN.
936 * We need it because of the clock switching.
939 static void hpt3xxn_rw_disk(ide_drive_t *drive, struct request *rq)
941 hpt3xxn_set_clock(HWIF(drive), rq_data_dir(rq) ? 0x23 : 0x21);
945 * Set/get power state for a drive.
946 * NOTE: affects both drives on each channel.
948 * When we turn the power back on, we need to re-initialize things.
950 #define TRISTATE_BIT 0x8000
952 static int hpt3xx_busproc(ide_drive_t *drive, int state)
954 ide_hwif_t *hwif = HWIF(drive);
955 struct pci_dev *dev = hwif->pci_dev;
956 u8 mcr_addr = hwif->select_data + 2;
957 u8 resetmask = hwif->channel ? 0x80 : 0x40;
961 hwif->bus_state = state;
963 /* Grab the status. */
964 pci_read_config_word(dev, mcr_addr, &mcr);
965 pci_read_config_byte(dev, 0x59, &bsr2);
968 * Set the state. We don't set it if we don't need to do so.
969 * Make sure that the drive knows that it has failed if it's off.
973 if (!(bsr2 & resetmask))
975 hwif->drives[0].failures = hwif->drives[1].failures = 0;
977 pci_write_config_byte(dev, 0x59, bsr2 & ~resetmask);
978 pci_write_config_word(dev, mcr_addr, mcr & ~TRISTATE_BIT);
981 if ((bsr2 & resetmask) && !(mcr & TRISTATE_BIT))
983 mcr &= ~TRISTATE_BIT;
985 case BUSSTATE_TRISTATE:
986 if ((bsr2 & resetmask) && (mcr & TRISTATE_BIT))
994 hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
995 hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
997 pci_write_config_word(dev, mcr_addr, mcr);
998 pci_write_config_byte(dev, 0x59, bsr2 | resetmask);
1003 * hpt37x_calibrate_dpll - calibrate the DPLL
1006 * Perform a calibration cycle on the DPLL.
1007 * Returns 1 if this succeeds
1009 static int __devinit hpt37x_calibrate_dpll(struct pci_dev *dev, u16 f_low, u16 f_high)
1011 u32 dpll = (f_high << 16) | f_low | 0x100;
1015 pci_write_config_dword(dev, 0x5c, dpll);
1017 /* Wait for oscillator ready */
1018 for(i = 0; i < 0x5000; ++i) {
1020 pci_read_config_byte(dev, 0x5b, &scr2);
1024 /* See if it stays ready (we'll just bail out if it's not yet) */
1025 for(i = 0; i < 0x1000; ++i) {
1026 pci_read_config_byte(dev, 0x5b, &scr2);
1027 /* DPLL destabilized? */
1031 /* Turn off tuning, we have the DPLL set */
1032 pci_read_config_dword (dev, 0x5c, &dpll);
1033 pci_write_config_dword(dev, 0x5c, (dpll & ~0x100));
1037 static unsigned int __devinit init_chipset_hpt366(struct pci_dev *dev, const char *name)
1039 struct hpt_info *info = kmalloc(sizeof(struct hpt_info), GFP_KERNEL);
1040 unsigned long io_base = pci_resource_start(dev, 4);
1041 u8 pci_clk, dpll_clk = 0; /* PCI and DPLL clock in MHz */
1043 enum ata_clock clock;
1046 printk(KERN_ERR "%s: out of memory!\n", name);
1051 * Copy everything from a static "template" structure
1052 * to just allocated per-chip hpt_info structure.
1054 memcpy(info, pci_get_drvdata(dev), sizeof(struct hpt_info));
1055 chip_type = info->chip_type;
1057 pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4));
1058 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78);
1059 pci_write_config_byte(dev, PCI_MIN_GNT, 0x08);
1060 pci_write_config_byte(dev, PCI_MAX_LAT, 0x08);
1063 * First, try to estimate the PCI clock frequency...
1065 if (chip_type >= HPT370) {
1070 /* Interrupt force enable. */
1071 pci_read_config_byte(dev, 0x5a, &scr1);
1073 pci_write_config_byte(dev, 0x5a, scr1 & ~0x10);
1076 * HighPoint does this for HPT372A.
1077 * NOTE: This register is only writeable via I/O space.
1079 if (chip_type == HPT372A)
1080 outb(0x0e, io_base + 0x9c);
1083 * Default to PCI clock. Make sure MA15/16 are set to output
1084 * to prevent drives having problems with 40-pin cables.
1086 pci_write_config_byte(dev, 0x5b, 0x23);
1089 * We'll have to read f_CNT value in order to determine
1090 * the PCI clock frequency according to the following ratio:
1092 * f_CNT = Fpci * 192 / Fdpll
1094 * First try reading the register in which the HighPoint BIOS
1095 * saves f_CNT value before reprogramming the DPLL from its
1096 * default setting (which differs for the various chips).
1098 * NOTE: This register is only accessible via I/O space;
1099 * HPT374 BIOS only saves it for the function 0, so we have to
1100 * always read it from there -- no need to check the result of
1101 * pci_get_slot() for the function 0 as the whole device has
1102 * been already "pinned" (via function 1) in init_setup_hpt374()
1104 if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) {
1105 struct pci_dev *dev1 = pci_get_slot(dev->bus,
1107 unsigned long io_base = pci_resource_start(dev1, 4);
1109 temp = inl(io_base + 0x90);
1112 temp = inl(io_base + 0x90);
1115 * In case the signature check fails, we'll have to
1116 * resort to reading the f_CNT register itself in hopes
1117 * that nobody has touched the DPLL yet...
1119 if ((temp & 0xFFFFF000) != 0xABCDE000) {
1122 printk(KERN_WARNING "%s: no clock data saved by BIOS\n",
1125 /* Calculate the average value of f_CNT. */
1126 for (temp = i = 0; i < 128; i++) {
1127 pci_read_config_word(dev, 0x78, &f_cnt);
1128 temp += f_cnt & 0x1ff;
1133 f_cnt = temp & 0x1ff;
1135 dpll_clk = info->dpll_clk;
1136 pci_clk = (f_cnt * dpll_clk) / 192;
1138 /* Clamp PCI clock to bands. */
1141 else if(pci_clk < 45)
1143 else if(pci_clk < 55)
1148 printk(KERN_INFO "%s: DPLL base: %d MHz, f_CNT: %d, "
1149 "assuming %d MHz PCI\n", name, dpll_clk, f_cnt, pci_clk);
1153 pci_read_config_dword(dev, 0x40, &itr1);
1155 /* Detect PCI clock by looking at cmd_high_time. */
1156 switch((itr1 >> 8) & 0x07) {
1170 /* Let's assume we'll use PCI clock for the ATA clock... */
1173 clock = ATA_CLOCK_25MHZ;
1177 clock = ATA_CLOCK_33MHZ;
1180 clock = ATA_CLOCK_40MHZ;
1183 clock = ATA_CLOCK_50MHZ;
1186 clock = ATA_CLOCK_66MHZ;
1191 * Only try the DPLL if we don't have a table for the PCI clock that
1192 * we are running at for HPT370/A, always use it for anything newer...
1194 * NOTE: Using the internal DPLL results in slow reads on 33 MHz PCI.
1195 * We also don't like using the DPLL because this causes glitches
1196 * on PRST-/SRST- when the state engine gets reset...
1198 if (chip_type >= HPT374 || info->settings[clock] == NULL) {
1199 u16 f_low, delta = pci_clk < 50 ? 2 : 4;
1203 * Select 66 MHz DPLL clock only if UltraATA/133 mode is
1204 * supported/enabled, use 50 MHz DPLL clock otherwise...
1206 if (info->udma_mask == ATA_UDMA6) {
1208 clock = ATA_CLOCK_66MHZ;
1209 } else if (dpll_clk) { /* HPT36x chips don't have DPLL */
1211 clock = ATA_CLOCK_50MHZ;
1214 if (info->settings[clock] == NULL) {
1215 printk(KERN_ERR "%s: unknown bus timing!\n", name);
1220 /* Select the DPLL clock. */
1221 pci_write_config_byte(dev, 0x5b, 0x21);
1224 * Adjust the DPLL based upon PCI clock, enable it,
1225 * and wait for stabilization...
1227 f_low = (pci_clk * 48) / dpll_clk;
1229 for (adjust = 0; adjust < 8; adjust++) {
1230 if(hpt37x_calibrate_dpll(dev, f_low, f_low + delta))
1234 * See if it'll settle at a fractionally different clock
1237 f_low -= adjust >> 1;
1239 f_low += adjust >> 1;
1242 printk(KERN_ERR "%s: DPLL did not stabilize!\n", name);
1247 printk("%s: using %d MHz DPLL clock\n", name, dpll_clk);
1249 /* Mark the fact that we're not using the DPLL. */
1252 printk("%s: using %d MHz PCI clock\n", name, pci_clk);
1256 * Advance the table pointer to a slot which points to the list
1257 * of the register values settings matching the clock being used.
1259 info->settings += clock;
1261 /* Store the clock frequencies. */
1262 info->dpll_clk = dpll_clk;
1263 info->pci_clk = pci_clk;
1265 /* Point to this chip's own instance of the hpt_info structure. */
1266 pci_set_drvdata(dev, info);
1268 if (chip_type >= HPT370) {
1272 * Reset the state engines.
1273 * NOTE: Avoid accidentally enabling the disabled channels.
1275 pci_read_config_byte (dev, 0x50, &mcr1);
1276 pci_read_config_byte (dev, 0x54, &mcr4);
1277 pci_write_config_byte(dev, 0x50, (mcr1 | 0x32));
1278 pci_write_config_byte(dev, 0x54, (mcr4 | 0x32));
1283 * On HPT371N, if ATA clock is 66 MHz we must set bit 2 in
1284 * the MISC. register to stretch the UltraDMA Tss timing.
1285 * NOTE: This register is only writeable via I/O space.
1287 if (chip_type == HPT371N && clock == ATA_CLOCK_66MHZ)
1289 outb(inb(io_base + 0x9c) | 0x04, io_base + 0x9c);
1294 static void __devinit init_hwif_hpt366(ide_hwif_t *hwif)
1296 struct pci_dev *dev = hwif->pci_dev;
1297 struct hpt_info *info = pci_get_drvdata(dev);
1298 int serialize = HPT_SERIALIZE_IO;
1299 u8 scr1 = 0, ata66 = hwif->channel ? 0x01 : 0x02;
1300 u8 chip_type = info->chip_type;
1301 u8 new_mcr, old_mcr = 0;
1303 /* Cache the channel's MISC. control registers' offset */
1304 hwif->select_data = hwif->channel ? 0x54 : 0x50;
1306 hwif->set_pio_mode = &hpt3xx_set_pio_mode;
1307 if (chip_type >= HPT370)
1308 hwif->set_dma_mode = &hpt37x_set_mode;
1310 hwif->set_dma_mode = &hpt36x_set_mode;
1312 hwif->quirkproc = &hpt3xx_quirkproc;
1313 hwif->intrproc = &hpt3xx_intrproc;
1314 hwif->maskproc = &hpt3xx_maskproc;
1315 hwif->busproc = &hpt3xx_busproc;
1317 hwif->udma_filter = &hpt3xx_udma_filter;
1318 hwif->mdma_filter = &hpt3xx_mdma_filter;
1321 * HPT3xxN chips have some complications:
1323 * - on 33 MHz PCI we must clock switch
1324 * - on 66 MHz PCI we must NOT use the PCI clock
1326 if (chip_type >= HPT372N && info->dpll_clk && info->pci_clk < 66) {
1328 * Clock is shared between the channels,
1329 * so we'll have to serialize them... :-(
1332 hwif->rw_disk = &hpt3xxn_rw_disk;
1335 /* Serialize access to this device if needed */
1336 if (serialize && hwif->mate)
1337 hwif->serialized = hwif->mate->serialized = 1;
1340 * Disable the "fast interrupt" prediction. Don't hold off
1341 * on interrupts. (== 0x01 despite what the docs say)
1343 pci_read_config_byte(dev, hwif->select_data + 1, &old_mcr);
1345 if (info->chip_type >= HPT374)
1346 new_mcr = old_mcr & ~0x07;
1347 else if (info->chip_type >= HPT370) {
1351 #ifdef HPT_DELAY_INTERRUPT
1356 } else /* HPT366 and HPT368 */
1357 new_mcr = old_mcr & ~0x80;
1359 if (new_mcr != old_mcr)
1360 pci_write_config_byte(dev, hwif->select_data + 1, new_mcr);
1362 if (hwif->dma_base == 0)
1366 * The HPT37x uses the CBLID pins as outputs for MA15/MA16
1367 * address lines to access an external EEPROM. To read valid
1368 * cable detect state the pins must be enabled as inputs.
1370 if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) {
1372 * HPT374 PCI function 1
1373 * - set bit 15 of reg 0x52 to enable TCBLID as input
1374 * - set bit 15 of reg 0x56 to enable FCBLID as input
1376 u8 mcr_addr = hwif->select_data + 2;
1379 pci_read_config_word (dev, mcr_addr, &mcr);
1380 pci_write_config_word(dev, mcr_addr, (mcr | 0x8000));
1381 /* now read cable id register */
1382 pci_read_config_byte (dev, 0x5a, &scr1);
1383 pci_write_config_word(dev, mcr_addr, mcr);
1384 } else if (chip_type >= HPT370) {
1386 * HPT370/372 and 374 pcifn 0
1387 * - clear bit 0 of reg 0x5b to enable P/SCBLID as inputs
1391 pci_read_config_byte (dev, 0x5b, &scr2);
1392 pci_write_config_byte(dev, 0x5b, (scr2 & ~1));
1393 /* now read cable id register */
1394 pci_read_config_byte (dev, 0x5a, &scr1);
1395 pci_write_config_byte(dev, 0x5b, scr2);
1397 pci_read_config_byte (dev, 0x5a, &scr1);
1399 if (hwif->cbl != ATA_CBL_PATA40_SHORT)
1400 hwif->cbl = (scr1 & ata66) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
1402 if (chip_type >= HPT374) {
1403 hwif->ide_dma_test_irq = &hpt374_ide_dma_test_irq;
1404 hwif->ide_dma_end = &hpt374_ide_dma_end;
1405 } else if (chip_type >= HPT370) {
1406 hwif->dma_start = &hpt370_ide_dma_start;
1407 hwif->ide_dma_end = &hpt370_ide_dma_end;
1408 hwif->dma_timeout = &hpt370_dma_timeout;
1410 hwif->dma_lost_irq = &hpt366_dma_lost_irq;
1413 static void __devinit init_dma_hpt366(ide_hwif_t *hwif, unsigned long dmabase)
1415 struct pci_dev *dev = hwif->pci_dev;
1416 u8 masterdma = 0, slavedma = 0;
1417 u8 dma_new = 0, dma_old = 0;
1418 unsigned long flags;
1420 dma_old = inb(dmabase + 2);
1422 local_irq_save(flags);
1425 pci_read_config_byte(dev, hwif->channel ? 0x4b : 0x43, &masterdma);
1426 pci_read_config_byte(dev, hwif->channel ? 0x4f : 0x47, &slavedma);
1428 if (masterdma & 0x30) dma_new |= 0x20;
1429 if ( slavedma & 0x30) dma_new |= 0x40;
1430 if (dma_new != dma_old)
1431 outb(dma_new, dmabase + 2);
1433 local_irq_restore(flags);
1435 ide_setup_dma(hwif, dmabase, 8);
1438 static void __devinit hpt374_init(struct pci_dev *dev, struct pci_dev *dev2)
1440 if (dev2->irq != dev->irq) {
1441 /* FIXME: we need a core pci_set_interrupt() */
1442 dev2->irq = dev->irq;
1443 printk(KERN_INFO "HPT374: PCI config space interrupt fixed\n");
1447 static void __devinit hpt371_init(struct pci_dev *dev)
1452 * HPT371 chips physically have only one channel, the secondary one,
1453 * but the primary channel registers do exist! Go figure...
1454 * So, we manually disable the non-existing channel here
1455 * (if the BIOS hasn't done this already).
1457 pci_read_config_byte(dev, 0x50, &mcr1);
1459 pci_write_config_byte(dev, 0x50, mcr1 & ~0x04);
1462 static int __devinit hpt36x_init(struct pci_dev *dev, struct pci_dev *dev2)
1464 u8 mcr1 = 0, pin1 = 0, pin2 = 0;
1467 * Now we'll have to force both channels enabled if
1468 * at least one of them has been enabled by BIOS...
1470 pci_read_config_byte(dev, 0x50, &mcr1);
1472 pci_write_config_byte(dev, 0x50, mcr1 | 0x30);
1474 pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin1);
1475 pci_read_config_byte(dev2, PCI_INTERRUPT_PIN, &pin2);
1477 if (pin1 != pin2 && dev->irq == dev2->irq) {
1478 printk(KERN_INFO "HPT36x: onboard version of chipset, "
1479 "pin1=%d pin2=%d\n", pin1, pin2);
1486 static const struct ide_port_info hpt366_chipsets[] __devinitdata = {
1489 .init_chipset = init_chipset_hpt366,
1490 .init_hwif = init_hwif_hpt366,
1491 .init_dma = init_dma_hpt366,
1493 * HPT36x chips have one channel per function and have
1494 * both channel enable bits located differently and visible
1495 * to both functions -- really stupid design decision... :-(
1496 * Bit 4 is for the primary channel, bit 5 for the secondary.
1498 .enablebits = {{0x50,0x10,0x10}, {0x54,0x04,0x04}},
1500 .host_flags = IDE_HFLAG_SINGLE |
1501 IDE_HFLAG_NO_ATAPI_DMA |
1502 IDE_HFLAG_OFF_BOARD,
1503 .pio_mask = ATA_PIO4,
1504 .mwdma_mask = ATA_MWDMA2,
1507 .init_chipset = init_chipset_hpt366,
1508 .init_hwif = init_hwif_hpt366,
1509 .init_dma = init_dma_hpt366,
1510 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
1512 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD,
1513 .pio_mask = ATA_PIO4,
1514 .mwdma_mask = ATA_MWDMA2,
1517 .init_chipset = init_chipset_hpt366,
1518 .init_hwif = init_hwif_hpt366,
1519 .init_dma = init_dma_hpt366,
1520 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
1522 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD,
1523 .pio_mask = ATA_PIO4,
1524 .mwdma_mask = ATA_MWDMA2,
1527 .init_chipset = init_chipset_hpt366,
1528 .init_hwif = init_hwif_hpt366,
1529 .init_dma = init_dma_hpt366,
1530 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
1532 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD,
1533 .pio_mask = ATA_PIO4,
1534 .mwdma_mask = ATA_MWDMA2,
1537 .init_chipset = init_chipset_hpt366,
1538 .init_hwif = init_hwif_hpt366,
1539 .init_dma = init_dma_hpt366,
1540 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
1541 .udma_mask = ATA_UDMA5,
1543 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD,
1544 .pio_mask = ATA_PIO4,
1545 .mwdma_mask = ATA_MWDMA2,
1548 .init_chipset = init_chipset_hpt366,
1549 .init_hwif = init_hwif_hpt366,
1550 .init_dma = init_dma_hpt366,
1551 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
1553 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD,
1554 .pio_mask = ATA_PIO4,
1555 .mwdma_mask = ATA_MWDMA2,
1560 * hpt366_init_one - called when an HPT366 is found
1561 * @dev: the hpt366 device
1562 * @id: the matching pci id
1564 * Called when the PCI registration layer (or the IDE initialization)
1565 * finds a device matching our IDE device tables.
1567 static int __devinit hpt366_init_one(struct pci_dev *dev, const struct pci_device_id *id)
1569 const struct hpt_info *info = NULL;
1570 struct pci_dev *dev2 = NULL;
1571 struct ide_port_info d;
1572 u8 idx = id->driver_data;
1573 u8 rev = dev->revision;
1575 if ((idx == 0 || idx == 4) && (PCI_FUNC(dev->devfn) & 1))
1583 static const struct hpt_info *hpt37x_info[] =
1584 { &hpt370, &hpt370a, &hpt372, &hpt372n };
1586 info = hpt37x_info[min_t(u8, rev, 6) - 3];
1591 info = (rev > 1) ? &hpt372n : &hpt372a;
1594 info = (rev > 1) ? &hpt302n : &hpt302;
1598 info = (rev > 1) ? &hpt371n : &hpt371;
1608 d = hpt366_chipsets[idx];
1610 d.name = info->chip_name;
1611 d.udma_mask = info->udma_mask;
1613 pci_set_drvdata(dev, (void *)info);
1615 if (info == &hpt36x || info == &hpt374)
1616 dev2 = pci_get_slot(dev->bus, dev->devfn + 1);
1621 pci_set_drvdata(dev2, (void *)info);
1623 if (info == &hpt374)
1624 hpt374_init(dev, dev2);
1626 if (hpt36x_init(dev, dev2))
1627 d.host_flags |= IDE_HFLAG_BOOTABLE;
1630 ret = ide_setup_pci_devices(dev, dev2, &d);
1636 return ide_setup_pci_device(dev, &d);
1639 static const struct pci_device_id hpt366_pci_tbl[] = {
1640 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT366), 0 },
1641 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT372), 1 },
1642 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT302), 2 },
1643 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT371), 3 },
1644 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT374), 4 },
1645 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT372N), 5 },
1648 MODULE_DEVICE_TABLE(pci, hpt366_pci_tbl);
1650 static struct pci_driver driver = {
1651 .name = "HPT366_IDE",
1652 .id_table = hpt366_pci_tbl,
1653 .probe = hpt366_init_one,
1656 static int __init hpt366_ide_init(void)
1658 return ide_pci_register_driver(&driver);
1661 module_init(hpt366_ide_init);
1663 MODULE_AUTHOR("Andre Hedrick");
1664 MODULE_DESCRIPTION("PCI driver module for Highpoint HPT366 IDE");
1665 MODULE_LICENSE("GPL");