2 * linux/drivers/ide/pci/alim15x3.c Version 0.25 Jun 9 2007
4 * Copyright (C) 1998-2000 Michel Aubry, Maintainer
5 * Copyright (C) 1998-2000 Andrzej Krzysztofowicz, Maintainer
6 * Copyright (C) 1999-2000 CJ, cjtsai@ali.com.tw, Maintainer
8 * Copyright (C) 1998-2000 Andre Hedrick (andre@linux-ide.org)
9 * May be copied or modified under the terms of the GNU General Public License
10 * Copyright (C) 2002 Alan Cox <alan@redhat.com>
11 * ALi (now ULi M5228) support by Clear Zhang <Clear.Zhang@ali.com.tw>
12 * Copyright (C) 2007 MontaVista Software, Inc. <source@mvista.com>
13 * Copyright (C) 2007 Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
15 * (U)DMA capable version of ali 1533/1543(C), 1535(D)
17 **********************************************************************
18 * 9/7/99 --Parts from the above author are included and need to be
19 * converted into standard interface, once I finish the thought.
22 * Don't use LBA48 mode on ALi <= 0xC4
23 * Don't poke 0x79 with a non ALi northbridge
24 * Don't flip undefined bits on newer chipsets (fix Fujitsu laptop hang)
25 * Allow UDMA6 on revisions > 0xC4
28 * Chipset documentation available under NDA only
32 #include <linux/module.h>
33 #include <linux/types.h>
34 #include <linux/kernel.h>
35 #include <linux/pci.h>
36 #include <linux/delay.h>
37 #include <linux/hdreg.h>
38 #include <linux/ide.h>
39 #include <linux/init.h>
40 #include <linux/dmi.h>
44 #define DISPLAY_ALI_TIMINGS
47 * ALi devices are not plug in. Otherwise these static values would
48 * need to go. They ought to go away anyway
51 static u8 m5229_revision;
52 static u8 chip_is_1543c_e;
53 static struct pci_dev *isa_dev;
55 #if defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_IDE_PROC_FS)
56 #include <linux/stat.h>
57 #include <linux/proc_fs.h>
59 static u8 ali_proc = 0;
61 static struct pci_dev *bmide_dev;
63 static char *fifo[4] = {
69 static char *udmaT[8] = {
80 static char *channel_status[8] = {
92 * ali_get_info - generate proc file for ALi IDE
93 * @buffer: buffer to fill
94 * @addr: address of user start in buffer
95 * @offset: offset into 'file'
96 * @count: buffer count
98 * Walks the Ali devices and outputs summary data on the tuning and
99 * anything else that will help with debugging
102 static int ali_get_info (char *buffer, char **addr, off_t offset, int count)
105 u8 reg53h, reg5xh, reg5yh, reg5xh1, reg5yh1, c0, c1, rev, tmp;
106 char *q, *p = buffer;
109 pci_read_config_byte(bmide_dev, 0x08, &rev);
110 if (rev >= 0xc1) /* M1543C or newer */
115 /* first fetch bibma: */
117 bibma = pci_resource_start(bmide_dev, 4);
120 * at that point bibma+0x2 et bibma+0xa are byte
121 * registers to investigate:
123 c0 = inb(bibma + 0x02);
124 c1 = inb(bibma + 0x0a);
127 "\n Ali M15x3 Chipset.\n");
129 " ------------------\n");
130 pci_read_config_byte(bmide_dev, 0x78, ®53h);
131 p += sprintf(p, "PCI Clock: %d.\n", reg53h);
133 pci_read_config_byte(bmide_dev, 0x53, ®53h);
135 "CD_ROM FIFO:%s, CD_ROM DMA:%s\n",
136 (reg53h & 0x02) ? "Yes" : "No ",
137 (reg53h & 0x01) ? "Yes" : "No " );
138 pci_read_config_byte(bmide_dev, 0x74, ®53h);
140 "FIFO Status: contains %d Words, runs%s%s\n\n",
142 (reg53h & 0x40) ? " OVERWR" : "",
143 (reg53h & 0x80) ? " OVERRD." : "." );
146 "-------------------primary channel"
147 "-------------------secondary channel"
150 pci_read_config_byte(bmide_dev, 0x09, ®53h);
154 (reg53h & 0x20) ? "On " : "Off",
155 (reg53h & 0x10) ? "On " : "Off" );
158 "both channels togth: %s"
160 (c0&0x80) ? "No " : "Yes",
161 (c1&0x80) ? "No " : "Yes" );
163 pci_read_config_byte(bmide_dev, 0x76, ®53h);
165 "Channel state: %s %s\n",
166 channel_status[reg53h & 0x07],
167 channel_status[(reg53h & 0x70) >> 4] );
169 pci_read_config_byte(bmide_dev, 0x58, ®5xh);
170 pci_read_config_byte(bmide_dev, 0x5c, ®5yh);
172 "Add. Setup Timing: %dT"
174 (reg5xh & 0x07) ? (reg5xh & 0x07) : 8,
175 (reg5yh & 0x07) ? (reg5yh & 0x07) : 8 );
177 pci_read_config_byte(bmide_dev, 0x59, ®5xh);
178 pci_read_config_byte(bmide_dev, 0x5d, ®5yh);
180 "Command Act. Count: %dT"
182 "Command Rec. Count: %dT"
184 (reg5xh & 0x70) ? ((reg5xh & 0x70) >> 4) : 8,
185 (reg5yh & 0x70) ? ((reg5yh & 0x70) >> 4) : 8,
186 (reg5xh & 0x0f) ? (reg5xh & 0x0f) : 16,
187 (reg5yh & 0x0f) ? (reg5yh & 0x0f) : 16 );
190 "----------------drive0-----------drive1"
191 "------------drive0-----------drive1------\n\n");
195 (c0&0x20) ? "Yes" : "No ",
196 (c0&0x40) ? "Yes" : "No ",
197 (c1&0x20) ? "Yes" : "No ",
198 (c1&0x40) ? "Yes" : "No " );
200 pci_read_config_byte(bmide_dev, 0x54, ®5xh);
201 pci_read_config_byte(bmide_dev, 0x55, ®5yh);
202 q = "FIFO threshold: %2d Words %2d Words"
203 " %2d Words %2d Words\n";
206 (pci_read_config_byte(bmide_dev, 0x4f, &tmp), (tmp &= 0x20))) {
207 p += sprintf(p, q, 8, 8, 8, 8);
210 (reg5xh & 0x03) + 12,
211 ((reg5xh & 0x30)>>4) + 12,
212 (reg5yh & 0x03) + 12,
213 ((reg5yh & 0x30)>>4) + 12 );
216 int t1 = (tmp = (reg5xh & 0x03)) ? (tmp << 3) : 4;
217 int t2 = (tmp = ((reg5xh & 0x30)>>4)) ? (tmp << 3) : 4;
218 int t3 = (tmp = (reg5yh & 0x03)) ? (tmp << 3) : 4;
219 int t4 = (tmp = ((reg5yh & 0x30)>>4)) ? (tmp << 3) : 4;
220 p += sprintf(p, q, t1, t2, t3, t4);
225 "FIFO threshold: %2d Words %2d Words"
226 " %2d Words %2d Words\n",
227 (reg5xh & 0x03) + 12,
228 ((reg5xh & 0x30)>>4) + 12,
229 (reg5yh & 0x03) + 12,
230 ((reg5yh & 0x30)>>4) + 12 );
234 "FIFO mode: %s %s %s %s\n",
235 fifo[((reg5xh & 0x0c) >> 2)],
236 fifo[((reg5xh & 0xc0) >> 6)],
237 fifo[((reg5yh & 0x0c) >> 2)],
238 fifo[((reg5yh & 0xc0) >> 6)] );
240 pci_read_config_byte(bmide_dev, 0x5a, ®5xh);
241 pci_read_config_byte(bmide_dev, 0x5b, ®5xh1);
242 pci_read_config_byte(bmide_dev, 0x5e, ®5yh);
243 pci_read_config_byte(bmide_dev, 0x5f, ®5yh1);
246 "------------------drive0-----------drive1"
247 "------------drive0-----------drive1------\n")*/
248 "Dt RW act. Cnt %2dT %2dT"
250 "Dt RW rec. Cnt %2dT %2dT"
252 (reg5xh & 0x70) ? ((reg5xh & 0x70) >> 4) : 8,
253 (reg5xh1 & 0x70) ? ((reg5xh1 & 0x70) >> 4) : 8,
254 (reg5yh & 0x70) ? ((reg5yh & 0x70) >> 4) : 8,
255 (reg5yh1 & 0x70) ? ((reg5yh1 & 0x70) >> 4) : 8,
256 (reg5xh & 0x0f) ? (reg5xh & 0x0f) : 16,
257 (reg5xh1 & 0x0f) ? (reg5xh1 & 0x0f) : 16,
258 (reg5yh & 0x0f) ? (reg5yh & 0x0f) : 16,
259 (reg5yh1 & 0x0f) ? (reg5yh1 & 0x0f) : 16 );
262 "-----------------------------------UDMA Timings"
263 "--------------------------------\n\n");
265 pci_read_config_byte(bmide_dev, 0x56, ®5xh);
266 pci_read_config_byte(bmide_dev, 0x57, ®5yh);
270 "UDMA timings: %s %s"
272 (reg5xh & 0x08) ? "OK" : "No",
273 (reg5xh & 0x80) ? "OK" : "No",
274 (reg5yh & 0x08) ? "OK" : "No",
275 (reg5yh & 0x80) ? "OK" : "No",
276 udmaT[(reg5xh & 0x07)],
277 udmaT[(reg5xh & 0x70) >> 4],
278 udmaT[reg5yh & 0x07],
279 udmaT[(reg5yh & 0x70) >> 4] );
281 return p-buffer; /* => must be less than 4k! */
283 #endif /* defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_IDE_PROC_FS) */
286 * ali15x3_tune_pio - set up chipset for PIO mode
287 * @drive: drive to tune
290 * Select the best PIO mode for the drive in question.
291 * Then program the controller for this mode.
293 * Returns the PIO mode programmed.
296 static u8 ali15x3_tune_pio (ide_drive_t *drive, u8 pio)
298 ide_hwif_t *hwif = HWIF(drive);
299 struct pci_dev *dev = hwif->pci_dev;
300 int s_time, a_time, c_time;
301 u8 s_clc, a_clc, r_clc;
303 int bus_speed = system_bus_clock();
304 int port = hwif->channel ? 0x5c : 0x58;
305 int portFIFO = hwif->channel ? 0x55 : 0x54;
307 int unit = drive->select.b.unit & 1;
309 pio = ide_get_best_pio_mode(drive, pio, 5);
310 s_time = ide_pio_timings[pio].setup_time;
311 a_time = ide_pio_timings[pio].active_time;
312 if ((s_clc = (s_time * bus_speed + 999) / 1000) >= 8)
314 if ((a_clc = (a_time * bus_speed + 999) / 1000) >= 8)
316 c_time = ide_pio_timings[pio].cycle_time;
319 if ((r_clc = ((c_time - s_time - a_time) * bus_speed + 999) / 1000) >= 16)
323 if (!(r_clc = (c_time * bus_speed + 999) / 1000 - a_clc - s_clc)) {
329 local_irq_save(flags);
332 * PIO mode => ATA FIFO on, ATAPI FIFO off
334 pci_read_config_byte(dev, portFIFO, &cd_dma_fifo);
335 if (drive->media==ide_disk) {
337 pci_write_config_byte(dev, portFIFO, (cd_dma_fifo & 0x0F) | 0x50);
339 pci_write_config_byte(dev, portFIFO, (cd_dma_fifo & 0xF0) | 0x05);
343 pci_write_config_byte(dev, portFIFO, cd_dma_fifo & 0x0F);
345 pci_write_config_byte(dev, portFIFO, cd_dma_fifo & 0xF0);
349 pci_write_config_byte(dev, port, s_clc);
350 pci_write_config_byte(dev, port+drive->select.b.unit+2, (a_clc << 4) | r_clc);
351 local_irq_restore(flags);
355 * { 70, 165, 365 }, PIO Mode 0
356 * { 50, 125, 208 }, PIO Mode 1
357 * { 30, 100, 110 }, PIO Mode 2
358 * { 30, 80, 70 }, PIO Mode 3 with IORDY
359 * { 25, 70, 25 }, PIO Mode 4 with IORDY ns
360 * { 20, 50, 30 } PIO Mode 5 with IORDY (nonstandard)
367 * ali15x3_tune_drive - set up drive for PIO mode
368 * @drive: drive to tune
371 * Program the controller with the best PIO timing for the given drive.
372 * Then set up the drive itself.
375 static void ali15x3_tune_drive (ide_drive_t *drive, u8 pio)
377 pio = ali15x3_tune_pio(drive, pio);
378 (void) ide_config_drive_speed(drive, XFER_PIO_0 + pio);
382 * ali_udma_filter - compute UDMA mask
385 * Return available UDMA modes.
387 * The actual rules for the ALi are:
388 * No UDMA on revisions <= 0x20
389 * Disk only for revisions < 0xC2
390 * Not WDC drives for revisions < 0xC2
392 * FIXME: WDC ifdef needs to die
395 static u8 ali_udma_filter(ide_drive_t *drive)
397 if (m5229_revision > 0x20 && m5229_revision < 0xC2) {
398 if (drive->media != ide_disk)
400 #ifndef CONFIG_WDC_ALI15X3
401 if (chip_is_1543c_e && strstr(drive->id->model, "WDC "))
406 return drive->hwif->ultra_mask;
410 * ali15x3_tune_chipset - set up chipset/drive for new speed
411 * @drive: drive to configure for
412 * @xferspeed: desired speed
414 * Configure the hardware for the desired IDE transfer mode.
415 * We also do the needed drive configuration through helpers
418 static int ali15x3_tune_chipset (ide_drive_t *drive, u8 xferspeed)
420 ide_hwif_t *hwif = HWIF(drive);
421 struct pci_dev *dev = hwif->pci_dev;
422 u8 speed = ide_rate_filter(drive, xferspeed);
424 u8 unit = (drive->select.b.unit & 0x01);
426 int m5229_udma = (hwif->channel) ? 0x57 : 0x56;
428 if (speed == XFER_UDMA_6)
431 if (speed < XFER_UDMA_0) {
432 u8 ultra_enable = (unit) ? 0x7f : 0xf7;
434 * clear "ultra enable" bit
436 pci_read_config_byte(dev, m5229_udma, &tmpbyte);
437 tmpbyte &= ultra_enable;
438 pci_write_config_byte(dev, m5229_udma, tmpbyte);
440 if (speed < XFER_SW_DMA_0)
441 (void) ali15x3_tune_pio(drive, speed - XFER_PIO_0);
443 pci_read_config_byte(dev, m5229_udma, &tmpbyte);
444 tmpbyte &= (0x0f << ((1-unit) << 2));
446 * enable ultra dma and set timing
448 tmpbyte |= ((0x08 | ((4-speed1)&0x07)) << (unit << 2));
449 pci_write_config_byte(dev, m5229_udma, tmpbyte);
450 if (speed >= XFER_UDMA_3) {
451 pci_read_config_byte(dev, 0x4b, &tmpbyte);
453 pci_write_config_byte(dev, 0x4b, tmpbyte);
456 return (ide_config_drive_speed(drive, speed));
460 * ali15x3_config_drive_for_dma - configure for DMA
461 * @drive: drive to configure
463 * Configure a drive for DMA operation. If DMA is not possible we
464 * drop the drive into PIO mode instead.
467 static int ali15x3_config_drive_for_dma(ide_drive_t *drive)
469 drive->init_speed = 0;
471 if (ide_tune_dma(drive))
474 ali15x3_tune_drive(drive, 255);
480 * ali15x3_dma_setup - begin a DMA phase
481 * @drive: target device
483 * Returns 1 if the DMA cannot be performed, zero on success.
486 static int ali15x3_dma_setup(ide_drive_t *drive)
488 if (m5229_revision < 0xC2 && drive->media != ide_disk) {
489 if (rq_data_dir(drive->hwif->hwgroup->rq))
490 return 1; /* try PIO instead of DMA */
492 return ide_dma_setup(drive);
496 * init_chipset_ali15x3 - Initialise an ALi IDE controller
498 * @name: Name of the controller
500 * This function initializes the ALI IDE controller and where
501 * appropriate also sets up the 1533 southbridge.
504 static unsigned int __devinit init_chipset_ali15x3 (struct pci_dev *dev, const char *name)
508 struct pci_dev *north = pci_get_slot(dev->bus, PCI_DEVFN(0,0));
510 m5229_revision = dev->revision;
512 isa_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);
514 #if defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_IDE_PROC_FS)
518 ide_pci_create_host_proc("ali", ali_get_info);
520 #endif /* defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_IDE_PROC_FS) */
522 local_irq_save(flags);
524 if (m5229_revision < 0xC2) {
526 * revision 0x20 (1543-E, 1543-F)
527 * revision 0xC0, 0xC1 (1543C-C, 1543C-D, 1543C-E)
528 * clear CD-ROM DMA write bit, m5229, 0x4b, bit 7
530 pci_read_config_byte(dev, 0x4b, &tmpbyte);
534 pci_write_config_byte(dev, 0x4b, tmpbyte & 0x7F);
539 * 1543C-B?, 1535, 1535D, 1553
540 * Note 1: not all "motherboard" support this detection
541 * Note 2: if no udma 66 device, the detection may "error".
542 * but in this case, we will not set the device to
543 * ultra 66, the detection result is not important
547 * enable "Cable Detection", m5229, 0x4b, bit3
549 pci_read_config_byte(dev, 0x4b, &tmpbyte);
550 pci_write_config_byte(dev, 0x4b, tmpbyte | 0x08);
553 * We should only tune the 1533 enable if we are using an ALi
554 * North bridge. We might have no north found on some zany
555 * box without a device at 0:0.0. The ALi bridge will be at
556 * 0:0.0 so if we didn't find one we know what is cooking.
558 if (north && north->vendor != PCI_VENDOR_ID_AL)
561 if (m5229_revision < 0xC5 && isa_dev)
564 * set south-bridge's enable bit, m1533, 0x79
567 pci_read_config_byte(isa_dev, 0x79, &tmpbyte);
568 if (m5229_revision == 0xC2) {
570 * 1543C-B0 (m1533, 0x79, bit 2)
572 pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x04);
573 } else if (m5229_revision >= 0xC3) {
575 * 1553/1535 (m1533, 0x79, bit 1)
577 pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x02);
582 pci_dev_put(isa_dev);
583 local_irq_restore(flags);
588 * Cable special cases
591 static struct dmi_system_id cable_dmi_table[] = {
593 .ident = "HP Pavilion N5430",
595 DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
596 DMI_MATCH(DMI_BOARD_VERSION, "OmniBook N32N-736"),
600 .ident = "Toshiba Satellite S1800-814",
602 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
603 DMI_MATCH(DMI_PRODUCT_NAME, "S1800-814"),
609 static int ali_cable_override(struct pci_dev *pdev)
612 if (pdev->subsystem_vendor == 0x10CF &&
613 pdev->subsystem_device == 0x10AF)
617 if (dmi_check_system(cable_dmi_table))
624 * ata66_ali15x3 - check for UDMA 66 support
625 * @hwif: IDE interface
627 * This checks if the controller and the cable are capable
628 * of UDMA66 transfers. It doesn't check the drives.
629 * But see note 2 below!
631 * FIXME: frobs bits that are not defined on newer ALi devicea
634 static u8 __devinit ata66_ali15x3(ide_hwif_t *hwif)
636 struct pci_dev *dev = hwif->pci_dev;
638 u8 cbl = ATA_CBL_PATA40, tmpbyte;
640 local_irq_save(flags);
642 if (m5229_revision >= 0xC2) {
644 * m5229 80-pin cable detection (from Host View)
646 * 0x4a bit0 is 0 => primary channel has 80-pin
647 * 0x4a bit1 is 0 => secondary channel has 80-pin
649 * Certain laptops use short but suitable cables
650 * and don't implement the detect logic.
652 if (ali_cable_override(dev))
653 cbl = ATA_CBL_PATA40_SHORT;
655 pci_read_config_byte(dev, 0x4a, &tmpbyte);
656 if ((tmpbyte & (1 << hwif->channel)) == 0)
657 cbl = ATA_CBL_PATA80;
661 * check m1533, 0x5e, bit 1~4 == 1001 => & 00011110 = 00010010
663 pci_read_config_byte(isa_dev, 0x5e, &tmpbyte);
664 chip_is_1543c_e = ((tmpbyte & 0x1e) == 0x12) ? 1: 0;
668 * CD_ROM DMA on (m5229, 0x53, bit0)
669 * Enable this bit even if we want to use PIO
670 * PIO FIFO off (m5229, 0x53, bit1)
671 * The hardware will use 0x54h and 0x55h to control PIO FIFO
672 * (Not on later devices it seems)
674 * 0x53 changes meaning on later revs - we must no touch
675 * bit 1 on them. Need to check if 0x20 is the right break
678 pci_read_config_byte(dev, 0x53, &tmpbyte);
680 if(m5229_revision <= 0x20)
681 tmpbyte = (tmpbyte & (~0x02)) | 0x01;
682 else if (m5229_revision == 0xc7 || m5229_revision == 0xc8)
687 pci_write_config_byte(dev, 0x53, tmpbyte);
689 local_irq_restore(flags);
695 * init_hwif_common_ali15x3 - Set up ALI IDE hardware
696 * @hwif: IDE interface
698 * Initialize the IDE structure side of the ALi 15x3 driver.
701 static void __devinit init_hwif_common_ali15x3 (ide_hwif_t *hwif)
704 hwif->tuneproc = &ali15x3_tune_drive;
705 hwif->speedproc = &ali15x3_tune_chipset;
706 hwif->udma_filter = &ali_udma_filter;
708 /* don't use LBA48 DMA on ALi devices before rev 0xC5 */
709 hwif->no_lba48_dma = (m5229_revision <= 0xC4) ? 1 : 0;
711 if (!hwif->dma_base) {
712 hwif->drives[0].autotune = 1;
713 hwif->drives[1].autotune = 1;
717 if (m5229_revision > 0x20)
720 if (m5229_revision <= 0x20)
721 hwif->ultra_mask = 0x00; /* no udma */
722 else if (m5229_revision < 0xC2)
723 hwif->ultra_mask = 0x07; /* udma0-2 */
724 else if (m5229_revision == 0xC2 || m5229_revision == 0xC3)
725 hwif->ultra_mask = 0x1f; /* udma0-4 */
726 else if (m5229_revision == 0xC4)
727 hwif->ultra_mask = 0x3f; /* udma0-5 */
729 hwif->ultra_mask = 0x7f; /* udma0-6 */
731 hwif->mwdma_mask = 0x07;
732 hwif->swdma_mask = 0x07;
734 if (m5229_revision >= 0x20) {
736 * M1543C or newer for DMAing
738 hwif->ide_dma_check = &ali15x3_config_drive_for_dma;
739 hwif->dma_setup = &ali15x3_dma_setup;
743 if (hwif->cbl != ATA_CBL_PATA40_SHORT)
744 hwif->cbl = ata66_ali15x3(hwif);
746 hwif->drives[0].autodma = hwif->autodma;
747 hwif->drives[1].autodma = hwif->autodma;
751 * init_hwif_ali15x3 - Initialize the ALI IDE x86 stuff
752 * @hwif: interface to configure
754 * Obtain the IRQ tables for an ALi based IDE solution on the PC
755 * class platforms. This part of the code isn't applicable to the
759 static void __devinit init_hwif_ali15x3 (ide_hwif_t *hwif)
762 s8 irq_routing_table[] = { -1, 9, 3, 10, 4, 5, 7, 6,
763 1, 11, 0, 12, 0, 14, 0, 15 };
766 if (hwif->pci_dev->device == PCI_DEVICE_ID_AL_M5229)
767 hwif->irq = hwif->channel ? 15 : 14;
771 * read IDE interface control
773 pci_read_config_byte(isa_dev, 0x58, &ideic);
776 ideic = ideic & 0x03;
778 /* get IRQ for IDE Controller */
779 if ((hwif->channel && ideic == 0x03) ||
780 (!hwif->channel && !ideic)) {
782 * get SIRQ1 routing table
784 pci_read_config_byte(isa_dev, 0x44, &inmir);
785 inmir = inmir & 0x0f;
786 irq = irq_routing_table[inmir];
787 } else if (hwif->channel && !(ideic & 0x01)) {
789 * get SIRQ2 routing table
791 pci_read_config_byte(isa_dev, 0x75, &inmir);
792 inmir = inmir & 0x0f;
793 irq = irq_routing_table[inmir];
799 init_hwif_common_ali15x3(hwif);
803 * init_dma_ali15x3 - set up DMA on ALi15x3
804 * @hwif: IDE interface
805 * @dmabase: DMA interface base PCI address
807 * Set up the DMA functionality on the ALi 15x3. For the ALi
808 * controllers this is generic so we can let the generic code do
812 static void __devinit init_dma_ali15x3 (ide_hwif_t *hwif, unsigned long dmabase)
814 if (m5229_revision < 0x20)
817 outb(inb(dmabase + 2) & 0x60, dmabase + 2);
818 ide_setup_dma(hwif, dmabase, 8);
821 static ide_pci_device_t ali15x3_chipset __devinitdata = {
823 .init_chipset = init_chipset_ali15x3,
824 .init_hwif = init_hwif_ali15x3,
825 .init_dma = init_dma_ali15x3,
827 .bootable = ON_BOARD,
828 .pio_mask = ATA_PIO5,
832 * alim15x3_init_one - set up an ALi15x3 IDE controller
833 * @dev: PCI device to set up
835 * Perform the actual set up for an ALi15x3 that has been found by the
839 static int __devinit alim15x3_init_one(struct pci_dev *dev, const struct pci_device_id *id)
841 static struct pci_device_id ati_rs100[] = {
842 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100) },
846 ide_pci_device_t *d = &ali15x3_chipset;
848 if (pci_dev_present(ati_rs100))
849 printk(KERN_WARNING "alim15x3: ATI Radeon IGP Northbridge is not yet fully tested.\n");
851 #if defined(CONFIG_SPARC64)
852 d->init_hwif = init_hwif_common_ali15x3;
853 #endif /* CONFIG_SPARC64 */
854 return ide_setup_pci_device(dev, d);
858 static struct pci_device_id alim15x3_pci_tbl[] = {
859 { PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5229, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
860 { PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5228, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
863 MODULE_DEVICE_TABLE(pci, alim15x3_pci_tbl);
865 static struct pci_driver driver = {
866 .name = "ALI15x3_IDE",
867 .id_table = alim15x3_pci_tbl,
868 .probe = alim15x3_init_one,
871 static int __init ali15x3_ide_init(void)
873 return ide_pci_register_driver(&driver);
876 module_init(ali15x3_ide_init);
878 MODULE_AUTHOR("Michael Aubry, Andrzej Krzysztofowicz, CJ, Andre Hedrick, Alan Cox");
879 MODULE_DESCRIPTION("PCI driver module for ALi 15x3 IDE");
880 MODULE_LICENSE("GPL");