2 * linux/drivers/ide/pci/hpt366.c Version 1.22 Dec 4, 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 itr_mask, new_itr;
694 itr_mask = speed < XFER_MW_DMA_0 ? 0x30070000 :
695 (speed < XFER_UDMA_0 ? 0xc0070000 : 0xc03800ff);
697 new_itr = get_speed_setting(speed, info);
700 * Disable on-chip PIO FIFO/buffer (and PIO MST mode as well)
701 * to avoid problems handling I/O errors later
703 pci_read_config_dword(dev, itr_addr, &old_itr);
704 new_itr = (new_itr & ~itr_mask) | (old_itr & itr_mask);
705 new_itr &= ~0xc0000000;
707 pci_write_config_dword(dev, itr_addr, new_itr);
710 static void hpt37x_set_mode(ide_drive_t *drive, const u8 speed)
712 ide_hwif_t *hwif = HWIF(drive);
713 struct pci_dev *dev = hwif->pci_dev;
714 struct hpt_info *info = pci_get_drvdata(dev);
715 u8 itr_addr = 0x40 + (drive->dn * 4);
717 u32 itr_mask, new_itr;
719 itr_mask = speed < XFER_MW_DMA_0 ? 0x303c0000 :
720 (speed < XFER_UDMA_0 ? 0xc03c0000 : 0xc1c001ff);
722 new_itr = get_speed_setting(speed, info);
724 pci_read_config_dword(dev, itr_addr, &old_itr);
725 new_itr = (new_itr & ~itr_mask) | (old_itr & itr_mask);
727 if (speed < XFER_MW_DMA_0)
728 new_itr &= ~0x80000000; /* Disable on-chip PIO FIFO/buffer */
729 pci_write_config_dword(dev, itr_addr, new_itr);
732 static void hpt3xx_set_mode(ide_drive_t *drive, const u8 speed)
734 ide_hwif_t *hwif = HWIF(drive);
735 struct hpt_info *info = pci_get_drvdata(hwif->pci_dev);
737 if (info->chip_type >= HPT370)
738 hpt37x_set_mode(drive, speed);
739 else /* hpt368: hpt_minimum_revision(dev, 2) */
740 hpt36x_set_mode(drive, speed);
743 static void hpt3xx_set_pio_mode(ide_drive_t *drive, const u8 pio)
745 hpt3xx_set_mode(drive, XFER_PIO_0 + pio);
748 static int hpt3xx_quirkproc(ide_drive_t *drive)
750 struct hd_driveid *id = drive->id;
751 const char **list = quirk_drives;
754 if (strstr(id->model, *list++))
759 static void hpt3xx_intrproc(ide_drive_t *drive)
761 if (drive->quirk_list)
764 /* drives in the quirk_list may not like intr setups/cleanups */
765 outb(drive->ctl | 2, IDE_CONTROL_REG);
768 static void hpt3xx_maskproc(ide_drive_t *drive, int mask)
770 ide_hwif_t *hwif = HWIF(drive);
771 struct pci_dev *dev = hwif->pci_dev;
772 struct hpt_info *info = pci_get_drvdata(dev);
774 if (drive->quirk_list) {
775 if (info->chip_type >= HPT370) {
778 pci_read_config_byte(dev, 0x5a, &scr1);
779 if (((scr1 & 0x10) >> 4) != mask) {
784 pci_write_config_byte(dev, 0x5a, scr1);
788 disable_irq(hwif->irq);
790 enable_irq (hwif->irq);
793 outb(mask ? (drive->ctl | 2) : (drive->ctl & ~2),
798 * This is specific to the HPT366 UDMA chipset
799 * by HighPoint|Triones Technologies, Inc.
801 static void hpt366_dma_lost_irq(ide_drive_t *drive)
803 struct pci_dev *dev = HWIF(drive)->pci_dev;
804 u8 mcr1 = 0, mcr3 = 0, scr1 = 0;
806 pci_read_config_byte(dev, 0x50, &mcr1);
807 pci_read_config_byte(dev, 0x52, &mcr3);
808 pci_read_config_byte(dev, 0x5a, &scr1);
809 printk("%s: (%s) mcr1=0x%02x, mcr3=0x%02x, scr1=0x%02x\n",
810 drive->name, __FUNCTION__, mcr1, mcr3, scr1);
812 pci_write_config_byte(dev, 0x5a, scr1 & ~0x10);
813 ide_dma_lost_irq(drive);
816 static void hpt370_clear_engine(ide_drive_t *drive)
818 ide_hwif_t *hwif = HWIF(drive);
820 pci_write_config_byte(hwif->pci_dev, hwif->select_data, 0x37);
824 static void hpt370_irq_timeout(ide_drive_t *drive)
826 ide_hwif_t *hwif = HWIF(drive);
830 pci_read_config_word(hwif->pci_dev, hwif->select_data + 2, &bfifo);
831 printk(KERN_DEBUG "%s: %d bytes in FIFO\n", drive->name, bfifo & 0x1ff);
833 /* get DMA command mode */
834 dma_cmd = inb(hwif->dma_command);
836 outb(dma_cmd & ~0x1, hwif->dma_command);
837 hpt370_clear_engine(drive);
840 static void hpt370_ide_dma_start(ide_drive_t *drive)
842 #ifdef HPT_RESET_STATE_ENGINE
843 hpt370_clear_engine(drive);
845 ide_dma_start(drive);
848 static int hpt370_ide_dma_end(ide_drive_t *drive)
850 ide_hwif_t *hwif = HWIF(drive);
851 u8 dma_stat = inb(hwif->dma_status);
853 if (dma_stat & 0x01) {
856 dma_stat = inb(hwif->dma_status);
858 hpt370_irq_timeout(drive);
860 return __ide_dma_end(drive);
863 static void hpt370_dma_timeout(ide_drive_t *drive)
865 hpt370_irq_timeout(drive);
866 ide_dma_timeout(drive);
869 /* returns 1 if DMA IRQ issued, 0 otherwise */
870 static int hpt374_ide_dma_test_irq(ide_drive_t *drive)
872 ide_hwif_t *hwif = HWIF(drive);
876 pci_read_config_word(hwif->pci_dev, hwif->select_data + 2, &bfifo);
878 // printk("%s: %d bytes in FIFO\n", drive->name, bfifo);
882 dma_stat = inb(hwif->dma_status);
883 /* return 1 if INTR asserted */
887 if (!drive->waiting_for_dma)
888 printk(KERN_WARNING "%s: (%s) called while not waiting\n",
889 drive->name, __FUNCTION__);
893 static int hpt374_ide_dma_end(ide_drive_t *drive)
895 ide_hwif_t *hwif = HWIF(drive);
896 struct pci_dev *dev = hwif->pci_dev;
897 u8 mcr = 0, mcr_addr = hwif->select_data;
898 u8 bwsr = 0, mask = hwif->channel ? 0x02 : 0x01;
900 pci_read_config_byte(dev, 0x6a, &bwsr);
901 pci_read_config_byte(dev, mcr_addr, &mcr);
903 pci_write_config_byte(dev, mcr_addr, mcr | 0x30);
904 return __ide_dma_end(drive);
908 * hpt3xxn_set_clock - perform clock switching dance
909 * @hwif: hwif to switch
910 * @mode: clocking mode (0x21 for write, 0x23 otherwise)
912 * Switch the DPLL clock on the HPT3xxN devices. This is a right mess.
915 static void hpt3xxn_set_clock(ide_hwif_t *hwif, u8 mode)
917 u8 scr2 = inb(hwif->dma_master + 0x7b);
919 if ((scr2 & 0x7f) == mode)
922 /* Tristate the bus */
923 outb(0x80, hwif->dma_master + 0x73);
924 outb(0x80, hwif->dma_master + 0x77);
926 /* Switch clock and reset channels */
927 outb(mode, hwif->dma_master + 0x7b);
928 outb(0xc0, hwif->dma_master + 0x79);
931 * Reset the state machines.
932 * NOTE: avoid accidentally enabling the disabled channels.
934 outb(inb(hwif->dma_master + 0x70) | 0x32, hwif->dma_master + 0x70);
935 outb(inb(hwif->dma_master + 0x74) | 0x32, hwif->dma_master + 0x74);
938 outb(0x00, hwif->dma_master + 0x79);
940 /* Reconnect channels to bus */
941 outb(0x00, hwif->dma_master + 0x73);
942 outb(0x00, hwif->dma_master + 0x77);
946 * hpt3xxn_rw_disk - prepare for I/O
947 * @drive: drive for command
948 * @rq: block request structure
950 * This is called when a disk I/O is issued to HPT3xxN.
951 * We need it because of the clock switching.
954 static void hpt3xxn_rw_disk(ide_drive_t *drive, struct request *rq)
956 hpt3xxn_set_clock(HWIF(drive), rq_data_dir(rq) ? 0x23 : 0x21);
960 * Set/get power state for a drive.
961 * NOTE: affects both drives on each channel.
963 * When we turn the power back on, we need to re-initialize things.
965 #define TRISTATE_BIT 0x8000
967 static int hpt3xx_busproc(ide_drive_t *drive, int state)
969 ide_hwif_t *hwif = HWIF(drive);
970 struct pci_dev *dev = hwif->pci_dev;
971 u8 mcr_addr = hwif->select_data + 2;
972 u8 resetmask = hwif->channel ? 0x80 : 0x40;
976 hwif->bus_state = state;
978 /* Grab the status. */
979 pci_read_config_word(dev, mcr_addr, &mcr);
980 pci_read_config_byte(dev, 0x59, &bsr2);
983 * Set the state. We don't set it if we don't need to do so.
984 * Make sure that the drive knows that it has failed if it's off.
988 if (!(bsr2 & resetmask))
990 hwif->drives[0].failures = hwif->drives[1].failures = 0;
992 pci_write_config_byte(dev, 0x59, bsr2 & ~resetmask);
993 pci_write_config_word(dev, mcr_addr, mcr & ~TRISTATE_BIT);
996 if ((bsr2 & resetmask) && !(mcr & TRISTATE_BIT))
998 mcr &= ~TRISTATE_BIT;
1000 case BUSSTATE_TRISTATE:
1001 if ((bsr2 & resetmask) && (mcr & TRISTATE_BIT))
1003 mcr |= TRISTATE_BIT;
1009 hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
1010 hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
1012 pci_write_config_word(dev, mcr_addr, mcr);
1013 pci_write_config_byte(dev, 0x59, bsr2 | resetmask);
1018 * hpt37x_calibrate_dpll - calibrate the DPLL
1021 * Perform a calibration cycle on the DPLL.
1022 * Returns 1 if this succeeds
1024 static int __devinit hpt37x_calibrate_dpll(struct pci_dev *dev, u16 f_low, u16 f_high)
1026 u32 dpll = (f_high << 16) | f_low | 0x100;
1030 pci_write_config_dword(dev, 0x5c, dpll);
1032 /* Wait for oscillator ready */
1033 for(i = 0; i < 0x5000; ++i) {
1035 pci_read_config_byte(dev, 0x5b, &scr2);
1039 /* See if it stays ready (we'll just bail out if it's not yet) */
1040 for(i = 0; i < 0x1000; ++i) {
1041 pci_read_config_byte(dev, 0x5b, &scr2);
1042 /* DPLL destabilized? */
1046 /* Turn off tuning, we have the DPLL set */
1047 pci_read_config_dword (dev, 0x5c, &dpll);
1048 pci_write_config_dword(dev, 0x5c, (dpll & ~0x100));
1052 static unsigned int __devinit init_chipset_hpt366(struct pci_dev *dev, const char *name)
1054 struct hpt_info *info = kmalloc(sizeof(struct hpt_info), GFP_KERNEL);
1055 unsigned long io_base = pci_resource_start(dev, 4);
1056 u8 pci_clk, dpll_clk = 0; /* PCI and DPLL clock in MHz */
1058 enum ata_clock clock;
1061 printk(KERN_ERR "%s: out of memory!\n", name);
1066 * Copy everything from a static "template" structure
1067 * to just allocated per-chip hpt_info structure.
1069 memcpy(info, pci_get_drvdata(dev), sizeof(struct hpt_info));
1070 chip_type = info->chip_type;
1072 pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4));
1073 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78);
1074 pci_write_config_byte(dev, PCI_MIN_GNT, 0x08);
1075 pci_write_config_byte(dev, PCI_MAX_LAT, 0x08);
1078 * First, try to estimate the PCI clock frequency...
1080 if (chip_type >= HPT370) {
1085 /* Interrupt force enable. */
1086 pci_read_config_byte(dev, 0x5a, &scr1);
1088 pci_write_config_byte(dev, 0x5a, scr1 & ~0x10);
1091 * HighPoint does this for HPT372A.
1092 * NOTE: This register is only writeable via I/O space.
1094 if (chip_type == HPT372A)
1095 outb(0x0e, io_base + 0x9c);
1098 * Default to PCI clock. Make sure MA15/16 are set to output
1099 * to prevent drives having problems with 40-pin cables.
1101 pci_write_config_byte(dev, 0x5b, 0x23);
1104 * We'll have to read f_CNT value in order to determine
1105 * the PCI clock frequency according to the following ratio:
1107 * f_CNT = Fpci * 192 / Fdpll
1109 * First try reading the register in which the HighPoint BIOS
1110 * saves f_CNT value before reprogramming the DPLL from its
1111 * default setting (which differs for the various chips).
1113 * NOTE: This register is only accessible via I/O space;
1114 * HPT374 BIOS only saves it for the function 0, so we have to
1115 * always read it from there -- no need to check the result of
1116 * pci_get_slot() for the function 0 as the whole device has
1117 * been already "pinned" (via function 1) in init_setup_hpt374()
1119 if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) {
1120 struct pci_dev *dev1 = pci_get_slot(dev->bus,
1122 unsigned long io_base = pci_resource_start(dev1, 4);
1124 temp = inl(io_base + 0x90);
1127 temp = inl(io_base + 0x90);
1130 * In case the signature check fails, we'll have to
1131 * resort to reading the f_CNT register itself in hopes
1132 * that nobody has touched the DPLL yet...
1134 if ((temp & 0xFFFFF000) != 0xABCDE000) {
1137 printk(KERN_WARNING "%s: no clock data saved by BIOS\n",
1140 /* Calculate the average value of f_CNT. */
1141 for (temp = i = 0; i < 128; i++) {
1142 pci_read_config_word(dev, 0x78, &f_cnt);
1143 temp += f_cnt & 0x1ff;
1148 f_cnt = temp & 0x1ff;
1150 dpll_clk = info->dpll_clk;
1151 pci_clk = (f_cnt * dpll_clk) / 192;
1153 /* Clamp PCI clock to bands. */
1156 else if(pci_clk < 45)
1158 else if(pci_clk < 55)
1163 printk(KERN_INFO "%s: DPLL base: %d MHz, f_CNT: %d, "
1164 "assuming %d MHz PCI\n", name, dpll_clk, f_cnt, pci_clk);
1168 pci_read_config_dword(dev, 0x40, &itr1);
1170 /* Detect PCI clock by looking at cmd_high_time. */
1171 switch((itr1 >> 8) & 0x07) {
1185 /* Let's assume we'll use PCI clock for the ATA clock... */
1188 clock = ATA_CLOCK_25MHZ;
1192 clock = ATA_CLOCK_33MHZ;
1195 clock = ATA_CLOCK_40MHZ;
1198 clock = ATA_CLOCK_50MHZ;
1201 clock = ATA_CLOCK_66MHZ;
1206 * Only try the DPLL if we don't have a table for the PCI clock that
1207 * we are running at for HPT370/A, always use it for anything newer...
1209 * NOTE: Using the internal DPLL results in slow reads on 33 MHz PCI.
1210 * We also don't like using the DPLL because this causes glitches
1211 * on PRST-/SRST- when the state engine gets reset...
1213 if (chip_type >= HPT374 || info->settings[clock] == NULL) {
1214 u16 f_low, delta = pci_clk < 50 ? 2 : 4;
1218 * Select 66 MHz DPLL clock only if UltraATA/133 mode is
1219 * supported/enabled, use 50 MHz DPLL clock otherwise...
1221 if (info->udma_mask == ATA_UDMA6) {
1223 clock = ATA_CLOCK_66MHZ;
1224 } else if (dpll_clk) { /* HPT36x chips don't have DPLL */
1226 clock = ATA_CLOCK_50MHZ;
1229 if (info->settings[clock] == NULL) {
1230 printk(KERN_ERR "%s: unknown bus timing!\n", name);
1235 /* Select the DPLL clock. */
1236 pci_write_config_byte(dev, 0x5b, 0x21);
1239 * Adjust the DPLL based upon PCI clock, enable it,
1240 * and wait for stabilization...
1242 f_low = (pci_clk * 48) / dpll_clk;
1244 for (adjust = 0; adjust < 8; adjust++) {
1245 if(hpt37x_calibrate_dpll(dev, f_low, f_low + delta))
1249 * See if it'll settle at a fractionally different clock
1252 f_low -= adjust >> 1;
1254 f_low += adjust >> 1;
1257 printk(KERN_ERR "%s: DPLL did not stabilize!\n", name);
1262 printk("%s: using %d MHz DPLL clock\n", name, dpll_clk);
1264 /* Mark the fact that we're not using the DPLL. */
1267 printk("%s: using %d MHz PCI clock\n", name, pci_clk);
1271 * Advance the table pointer to a slot which points to the list
1272 * of the register values settings matching the clock being used.
1274 info->settings += clock;
1276 /* Store the clock frequencies. */
1277 info->dpll_clk = dpll_clk;
1278 info->pci_clk = pci_clk;
1280 /* Point to this chip's own instance of the hpt_info structure. */
1281 pci_set_drvdata(dev, info);
1283 if (chip_type >= HPT370) {
1287 * Reset the state engines.
1288 * NOTE: Avoid accidentally enabling the disabled channels.
1290 pci_read_config_byte (dev, 0x50, &mcr1);
1291 pci_read_config_byte (dev, 0x54, &mcr4);
1292 pci_write_config_byte(dev, 0x50, (mcr1 | 0x32));
1293 pci_write_config_byte(dev, 0x54, (mcr4 | 0x32));
1298 * On HPT371N, if ATA clock is 66 MHz we must set bit 2 in
1299 * the MISC. register to stretch the UltraDMA Tss timing.
1300 * NOTE: This register is only writeable via I/O space.
1302 if (chip_type == HPT371N && clock == ATA_CLOCK_66MHZ)
1304 outb(inb(io_base + 0x9c) | 0x04, io_base + 0x9c);
1309 static void __devinit init_hwif_hpt366(ide_hwif_t *hwif)
1311 struct pci_dev *dev = hwif->pci_dev;
1312 struct hpt_info *info = pci_get_drvdata(dev);
1313 int serialize = HPT_SERIALIZE_IO;
1314 u8 scr1 = 0, ata66 = hwif->channel ? 0x01 : 0x02;
1315 u8 chip_type = info->chip_type;
1316 u8 new_mcr, old_mcr = 0;
1318 /* Cache the channel's MISC. control registers' offset */
1319 hwif->select_data = hwif->channel ? 0x54 : 0x50;
1321 hwif->set_pio_mode = &hpt3xx_set_pio_mode;
1322 hwif->set_dma_mode = &hpt3xx_set_mode;
1323 hwif->quirkproc = &hpt3xx_quirkproc;
1324 hwif->intrproc = &hpt3xx_intrproc;
1325 hwif->maskproc = &hpt3xx_maskproc;
1326 hwif->busproc = &hpt3xx_busproc;
1328 hwif->udma_filter = &hpt3xx_udma_filter;
1329 hwif->mdma_filter = &hpt3xx_mdma_filter;
1332 * HPT3xxN chips have some complications:
1334 * - on 33 MHz PCI we must clock switch
1335 * - on 66 MHz PCI we must NOT use the PCI clock
1337 if (chip_type >= HPT372N && info->dpll_clk && info->pci_clk < 66) {
1339 * Clock is shared between the channels,
1340 * so we'll have to serialize them... :-(
1343 hwif->rw_disk = &hpt3xxn_rw_disk;
1346 /* Serialize access to this device if needed */
1347 if (serialize && hwif->mate)
1348 hwif->serialized = hwif->mate->serialized = 1;
1351 * Disable the "fast interrupt" prediction. Don't hold off
1352 * on interrupts. (== 0x01 despite what the docs say)
1354 pci_read_config_byte(dev, hwif->select_data + 1, &old_mcr);
1356 if (info->chip_type >= HPT374)
1357 new_mcr = old_mcr & ~0x07;
1358 else if (info->chip_type >= HPT370) {
1362 #ifdef HPT_DELAY_INTERRUPT
1367 } else /* HPT366 and HPT368 */
1368 new_mcr = old_mcr & ~0x80;
1370 if (new_mcr != old_mcr)
1371 pci_write_config_byte(dev, hwif->select_data + 1, new_mcr);
1373 if (hwif->dma_base == 0)
1377 * The HPT37x uses the CBLID pins as outputs for MA15/MA16
1378 * address lines to access an external EEPROM. To read valid
1379 * cable detect state the pins must be enabled as inputs.
1381 if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) {
1383 * HPT374 PCI function 1
1384 * - set bit 15 of reg 0x52 to enable TCBLID as input
1385 * - set bit 15 of reg 0x56 to enable FCBLID as input
1387 u8 mcr_addr = hwif->select_data + 2;
1390 pci_read_config_word (dev, mcr_addr, &mcr);
1391 pci_write_config_word(dev, mcr_addr, (mcr | 0x8000));
1392 /* now read cable id register */
1393 pci_read_config_byte (dev, 0x5a, &scr1);
1394 pci_write_config_word(dev, mcr_addr, mcr);
1395 } else if (chip_type >= HPT370) {
1397 * HPT370/372 and 374 pcifn 0
1398 * - clear bit 0 of reg 0x5b to enable P/SCBLID as inputs
1402 pci_read_config_byte (dev, 0x5b, &scr2);
1403 pci_write_config_byte(dev, 0x5b, (scr2 & ~1));
1404 /* now read cable id register */
1405 pci_read_config_byte (dev, 0x5a, &scr1);
1406 pci_write_config_byte(dev, 0x5b, scr2);
1408 pci_read_config_byte (dev, 0x5a, &scr1);
1410 if (hwif->cbl != ATA_CBL_PATA40_SHORT)
1411 hwif->cbl = (scr1 & ata66) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
1413 if (chip_type >= HPT374) {
1414 hwif->ide_dma_test_irq = &hpt374_ide_dma_test_irq;
1415 hwif->ide_dma_end = &hpt374_ide_dma_end;
1416 } else if (chip_type >= HPT370) {
1417 hwif->dma_start = &hpt370_ide_dma_start;
1418 hwif->ide_dma_end = &hpt370_ide_dma_end;
1419 hwif->dma_timeout = &hpt370_dma_timeout;
1421 hwif->dma_lost_irq = &hpt366_dma_lost_irq;
1424 static void __devinit init_dma_hpt366(ide_hwif_t *hwif, unsigned long dmabase)
1426 struct pci_dev *dev = hwif->pci_dev;
1427 u8 masterdma = 0, slavedma = 0;
1428 u8 dma_new = 0, dma_old = 0;
1429 unsigned long flags;
1431 dma_old = inb(dmabase + 2);
1433 local_irq_save(flags);
1436 pci_read_config_byte(dev, hwif->channel ? 0x4b : 0x43, &masterdma);
1437 pci_read_config_byte(dev, hwif->channel ? 0x4f : 0x47, &slavedma);
1439 if (masterdma & 0x30) dma_new |= 0x20;
1440 if ( slavedma & 0x30) dma_new |= 0x40;
1441 if (dma_new != dma_old)
1442 outb(dma_new, dmabase + 2);
1444 local_irq_restore(flags);
1446 ide_setup_dma(hwif, dmabase, 8);
1449 static void __devinit hpt374_init(struct pci_dev *dev, struct pci_dev *dev2)
1451 if (dev2->irq != dev->irq) {
1452 /* FIXME: we need a core pci_set_interrupt() */
1453 dev2->irq = dev->irq;
1454 printk(KERN_INFO "HPT374: PCI config space interrupt fixed\n");
1458 static void __devinit hpt371_init(struct pci_dev *dev)
1463 * HPT371 chips physically have only one channel, the secondary one,
1464 * but the primary channel registers do exist! Go figure...
1465 * So, we manually disable the non-existing channel here
1466 * (if the BIOS hasn't done this already).
1468 pci_read_config_byte(dev, 0x50, &mcr1);
1470 pci_write_config_byte(dev, 0x50, mcr1 & ~0x04);
1473 static int __devinit hpt36x_init(struct pci_dev *dev, struct pci_dev *dev2)
1475 u8 mcr1 = 0, pin1 = 0, pin2 = 0;
1478 * Now we'll have to force both channels enabled if
1479 * at least one of them has been enabled by BIOS...
1481 pci_read_config_byte(dev, 0x50, &mcr1);
1483 pci_write_config_byte(dev, 0x50, mcr1 | 0x30);
1485 pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin1);
1486 pci_read_config_byte(dev2, PCI_INTERRUPT_PIN, &pin2);
1488 if (pin1 != pin2 && dev->irq == dev2->irq) {
1489 printk(KERN_INFO "HPT36x: onboard version of chipset, "
1490 "pin1=%d pin2=%d\n", pin1, pin2);
1497 static const struct ide_port_info hpt366_chipsets[] __devinitdata = {
1500 .init_chipset = init_chipset_hpt366,
1501 .init_hwif = init_hwif_hpt366,
1502 .init_dma = init_dma_hpt366,
1504 * HPT36x chips have one channel per function and have
1505 * both channel enable bits located differently and visible
1506 * to both functions -- really stupid design decision... :-(
1507 * Bit 4 is for the primary channel, bit 5 for the secondary.
1509 .enablebits = {{0x50,0x10,0x10}, {0x54,0x04,0x04}},
1511 .host_flags = IDE_HFLAG_SINGLE |
1512 IDE_HFLAG_NO_ATAPI_DMA |
1513 IDE_HFLAG_OFF_BOARD,
1514 .pio_mask = ATA_PIO4,
1515 .mwdma_mask = ATA_MWDMA2,
1518 .init_chipset = init_chipset_hpt366,
1519 .init_hwif = init_hwif_hpt366,
1520 .init_dma = init_dma_hpt366,
1521 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
1523 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD,
1524 .pio_mask = ATA_PIO4,
1525 .mwdma_mask = ATA_MWDMA2,
1528 .init_chipset = init_chipset_hpt366,
1529 .init_hwif = init_hwif_hpt366,
1530 .init_dma = init_dma_hpt366,
1531 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
1533 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD,
1534 .pio_mask = ATA_PIO4,
1535 .mwdma_mask = ATA_MWDMA2,
1538 .init_chipset = init_chipset_hpt366,
1539 .init_hwif = init_hwif_hpt366,
1540 .init_dma = init_dma_hpt366,
1541 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
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}},
1552 .udma_mask = ATA_UDMA5,
1554 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD,
1555 .pio_mask = ATA_PIO4,
1556 .mwdma_mask = ATA_MWDMA2,
1559 .init_chipset = init_chipset_hpt366,
1560 .init_hwif = init_hwif_hpt366,
1561 .init_dma = init_dma_hpt366,
1562 .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}},
1564 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD,
1565 .pio_mask = ATA_PIO4,
1566 .mwdma_mask = ATA_MWDMA2,
1571 * hpt366_init_one - called when an HPT366 is found
1572 * @dev: the hpt366 device
1573 * @id: the matching pci id
1575 * Called when the PCI registration layer (or the IDE initialization)
1576 * finds a device matching our IDE device tables.
1578 static int __devinit hpt366_init_one(struct pci_dev *dev, const struct pci_device_id *id)
1580 const struct hpt_info *info = NULL;
1581 struct pci_dev *dev2 = NULL;
1582 struct ide_port_info d;
1583 u8 idx = id->driver_data;
1584 u8 rev = dev->revision;
1586 if ((idx == 0 || idx == 4) && (PCI_FUNC(dev->devfn) & 1))
1594 static const struct hpt_info *hpt37x_info[] =
1595 { &hpt370, &hpt370a, &hpt372, &hpt372n };
1597 info = hpt37x_info[min_t(u8, rev, 6) - 3];
1602 info = (rev > 1) ? &hpt372n : &hpt372a;
1605 info = (rev > 1) ? &hpt302n : &hpt302;
1609 info = (rev > 1) ? &hpt371n : &hpt371;
1619 d = hpt366_chipsets[idx];
1621 d.name = info->chip_name;
1622 d.udma_mask = info->udma_mask;
1624 pci_set_drvdata(dev, (void *)info);
1626 if (info == &hpt36x || info == &hpt374)
1627 dev2 = pci_get_slot(dev->bus, dev->devfn + 1);
1632 pci_set_drvdata(dev2, (void *)info);
1634 if (info == &hpt374)
1635 hpt374_init(dev, dev2);
1637 if (hpt36x_init(dev, dev2))
1638 d.host_flags |= IDE_HFLAG_BOOTABLE;
1641 ret = ide_setup_pci_devices(dev, dev2, &d);
1647 return ide_setup_pci_device(dev, &d);
1650 static const struct pci_device_id hpt366_pci_tbl[] = {
1651 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT366), 0 },
1652 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT372), 1 },
1653 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT302), 2 },
1654 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT371), 3 },
1655 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT374), 4 },
1656 { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT372N), 5 },
1659 MODULE_DEVICE_TABLE(pci, hpt366_pci_tbl);
1661 static struct pci_driver driver = {
1662 .name = "HPT366_IDE",
1663 .id_table = hpt366_pci_tbl,
1664 .probe = hpt366_init_one,
1667 static int __init hpt366_ide_init(void)
1669 return ide_pci_register_driver(&driver);
1672 module_init(hpt366_ide_init);
1674 MODULE_AUTHOR("Andre Hedrick");
1675 MODULE_DESCRIPTION("PCI driver module for Highpoint HPT366 IDE");
1676 MODULE_LICENSE("GPL");