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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * Copyright (C) 1998-2000 Michel Aubry, Maintainer
3 * Copyright (C) 1998-2000 Andrzej Krzysztofowicz, Maintainer
4 * Copyright (C) 1999-2000 CJ, cjtsai@ali.com.tw, Maintainer
5 *
6 * Copyright (C) 1998-2000 Andre Hedrick (andre@linux-ide.org)
7 * May be copied or modified under the terms of the GNU General Public License
Alan Coxccd32e22008-11-02 21:40:08 +01008 * Copyright (C) 2002 Alan Cox
Linus Torvalds1da177e2005-04-16 15:20:36 -07009 * ALi (now ULi M5228) support by Clear Zhang <Clear.Zhang@ali.com.tw>
Sergei Shtylyov21b82472007-03-03 17:48:52 +010010 * Copyright (C) 2007 MontaVista Software, Inc. <source@mvista.com>
Bartlomiej Zolnierkiewicz95ba8c12007-07-09 23:17:58 +020011 * Copyright (C) 2007 Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Linus Torvalds1da177e2005-04-16 15:20:36 -070012 *
13 * (U)DMA capable version of ali 1533/1543(C), 1535(D)
14 *
15 **********************************************************************
16 * 9/7/99 --Parts from the above author are included and need to be
17 * converted into standard interface, once I finish the thought.
18 *
19 * Recent changes
20 * Don't use LBA48 mode on ALi <= 0xC4
21 * Don't poke 0x79 with a non ALi northbridge
22 * Don't flip undefined bits on newer chipsets (fix Fujitsu laptop hang)
23 * Allow UDMA6 on revisions > 0xC4
24 *
25 * Documentation
26 * Chipset documentation available under NDA only
27 *
28 */
29
Linus Torvalds1da177e2005-04-16 15:20:36 -070030#include <linux/module.h>
31#include <linux/types.h>
32#include <linux/kernel.h>
33#include <linux/pci.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070034#include <linux/ide.h>
35#include <linux/init.h>
Bartlomiej Zolnierkiewicz95ba8c12007-07-09 23:17:58 +020036#include <linux/dmi.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070037
38#include <asm/io.h>
39
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +020040#define DRV_NAME "alim15x3"
41
Linus Torvalds1da177e2005-04-16 15:20:36 -070042/*
Bartlomiej Zolnierkiewicz63b16232008-05-14 23:06:16 +020043 * Allow UDMA on M1543C-E chipset for WDC disks that ignore CRC checking
44 * (this is DANGEROUS and could result in data corruption).
45 */
46static int wdc_udma;
47
48module_param(wdc_udma, bool, 0);
49MODULE_PARM_DESC(wdc_udma,
50 "allow UDMA on M1543C-E chipset for WDC disks (DANGEROUS)");
51
52/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070053 * ALi devices are not plug in. Otherwise these static values would
54 * need to go. They ought to go away anyway
55 */
56
57static u8 m5229_revision;
58static u8 chip_is_1543c_e;
59static struct pci_dev *isa_dev;
60
Linus Torvalds1da177e2005-04-16 15:20:36 -070061/**
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +020062 * ali_set_pio_mode - set host controller for PIO mode
Bartlomiej Zolnierkiewicz26bcb872007-10-11 23:54:00 +020063 * @drive: drive
64 * @pio: PIO mode number
Linus Torvalds1da177e2005-04-16 15:20:36 -070065 *
Bartlomiej Zolnierkiewicz26bcb872007-10-11 23:54:00 +020066 * Program the controller for the given PIO mode.
Linus Torvalds1da177e2005-04-16 15:20:36 -070067 */
Bartlomiej Zolnierkiewicz26bcb872007-10-11 23:54:00 +020068
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +020069static void ali_set_pio_mode(ide_drive_t *drive, const u8 pio)
Linus Torvalds1da177e2005-04-16 15:20:36 -070070{
Bartlomiej Zolnierkiewicz898ec222009-01-06 17:20:52 +010071 ide_hwif_t *hwif = drive->hwif;
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +010072 struct pci_dev *dev = to_pci_dev(hwif->dev);
Bartlomiej Zolnierkiewicz288911a2008-07-16 20:33:37 +020073 struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio);
74 int s_time = t->setup, a_time = t->active, c_time = t->cycle;
Linus Torvalds1da177e2005-04-16 15:20:36 -070075 u8 s_clc, a_clc, r_clc;
76 unsigned long flags;
Bartlomiej Zolnierkiewicz30e5ee42008-07-15 21:21:46 +020077 int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
Linus Torvalds1da177e2005-04-16 15:20:36 -070078 int port = hwif->channel ? 0x5c : 0x58;
79 int portFIFO = hwif->channel ? 0x55 : 0x54;
Bartlomiej Zolnierkiewicz123995b2008-10-13 21:39:40 +020080 u8 cd_dma_fifo = 0, unit = drive->dn & 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -070081
Linus Torvalds1da177e2005-04-16 15:20:36 -070082 if ((s_clc = (s_time * bus_speed + 999) / 1000) >= 8)
83 s_clc = 0;
84 if ((a_clc = (a_time * bus_speed + 999) / 1000) >= 8)
85 a_clc = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -070086
Linus Torvalds1da177e2005-04-16 15:20:36 -070087 if (!(r_clc = (c_time * bus_speed + 999) / 1000 - a_clc - s_clc)) {
88 r_clc = 1;
89 } else {
90 if (r_clc >= 16)
91 r_clc = 0;
92 }
93 local_irq_save(flags);
94
95 /*
96 * PIO mode => ATA FIFO on, ATAPI FIFO off
97 */
98 pci_read_config_byte(dev, portFIFO, &cd_dma_fifo);
99 if (drive->media==ide_disk) {
100 if (unit) {
101 pci_write_config_byte(dev, portFIFO, (cd_dma_fifo & 0x0F) | 0x50);
102 } else {
103 pci_write_config_byte(dev, portFIFO, (cd_dma_fifo & 0xF0) | 0x05);
104 }
105 } else {
106 if (unit) {
107 pci_write_config_byte(dev, portFIFO, cd_dma_fifo & 0x0F);
108 } else {
109 pci_write_config_byte(dev, portFIFO, cd_dma_fifo & 0xF0);
110 }
111 }
112
113 pci_write_config_byte(dev, port, s_clc);
Bartlomiej Zolnierkiewicz123995b2008-10-13 21:39:40 +0200114 pci_write_config_byte(dev, port + unit + 2, (a_clc << 4) | r_clc);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115 local_irq_restore(flags);
Sergei Shtylyov21b82472007-03-03 17:48:52 +0100116}
117
118/**
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200119 * ali_udma_filter - compute UDMA mask
120 * @drive: IDE device
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121 *
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200122 * Return available UDMA modes.
123 *
124 * The actual rules for the ALi are:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125 * No UDMA on revisions <= 0x20
126 * Disk only for revisions < 0xC2
Bartlomiej Zolnierkiewicz63b16232008-05-14 23:06:16 +0200127 * Not WDC drives on M1543C-E (?)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128 */
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200129
130static u8 ali_udma_filter(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131{
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200132 if (m5229_revision > 0x20 && m5229_revision < 0xC2) {
133 if (drive->media != ide_disk)
134 return 0;
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +0200135 if (wdc_udma == 0 && chip_is_1543c_e &&
136 strstr((char *)&drive->id[ATA_ID_PROD], "WDC "))
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200137 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138 }
139
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200140 return drive->hwif->ultra_mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141}
142
143/**
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +0200144 * ali_set_dma_mode - set host controller for DMA mode
145 * @drive: drive
146 * @speed: DMA mode
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147 *
148 * Configure the hardware for the desired IDE transfer mode.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149 */
Bartlomiej Zolnierkiewiczf212ff22007-10-11 23:53:59 +0200150
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +0200151static void ali_set_dma_mode(ide_drive_t *drive, const u8 speed)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152{
Bartlomiej Zolnierkiewicz898ec222009-01-06 17:20:52 +0100153 ide_hwif_t *hwif = drive->hwif;
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100154 struct pci_dev *dev = to_pci_dev(hwif->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155 u8 speed1 = speed;
Bartlomiej Zolnierkiewicz123995b2008-10-13 21:39:40 +0200156 u8 unit = drive->dn & 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157 u8 tmpbyte = 0x00;
158 int m5229_udma = (hwif->channel) ? 0x57 : 0x56;
159
160 if (speed == XFER_UDMA_6)
161 speed1 = 0x47;
162
163 if (speed < XFER_UDMA_0) {
164 u8 ultra_enable = (unit) ? 0x7f : 0xf7;
165 /*
166 * clear "ultra enable" bit
167 */
168 pci_read_config_byte(dev, m5229_udma, &tmpbyte);
169 tmpbyte &= ultra_enable;
170 pci_write_config_byte(dev, m5229_udma, tmpbyte);
171
Bartlomiej Zolnierkiewicza6fe8372007-10-11 23:54:01 +0200172 /*
173 * FIXME: Oh, my... DMA timings are never set.
174 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175 } else {
176 pci_read_config_byte(dev, m5229_udma, &tmpbyte);
177 tmpbyte &= (0x0f << ((1-unit) << 2));
178 /*
179 * enable ultra dma and set timing
180 */
181 tmpbyte |= ((0x08 | ((4-speed1)&0x07)) << (unit << 2));
182 pci_write_config_byte(dev, m5229_udma, tmpbyte);
183 if (speed >= XFER_UDMA_3) {
184 pci_read_config_byte(dev, 0x4b, &tmpbyte);
185 tmpbyte |= 1;
186 pci_write_config_byte(dev, 0x4b, tmpbyte);
187 }
188 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189}
190
Linus Torvalds1da177e2005-04-16 15:20:36 -0700191/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192 * ali15x3_dma_setup - begin a DMA phase
193 * @drive: target device
194 *
195 * Returns 1 if the DMA cannot be performed, zero on success.
196 */
197
198static int ali15x3_dma_setup(ide_drive_t *drive)
199{
200 if (m5229_revision < 0xC2 && drive->media != ide_disk) {
Bartlomiej Zolnierkiewiczb65fac32009-01-06 17:20:50 +0100201 if (rq_data_dir(drive->hwif->rq))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202 return 1; /* try PIO instead of DMA */
203 }
204 return ide_dma_setup(drive);
205}
206
207/**
208 * init_chipset_ali15x3 - Initialise an ALi IDE controller
209 * @dev: PCI device
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210 *
211 * This function initializes the ALI IDE controller and where
212 * appropriate also sets up the 1533 southbridge.
213 */
Bartlomiej Zolnierkiewicza326b022008-07-24 22:53:33 +0200214
Bartlomiej Zolnierkiewiczfeb22b72008-10-10 22:39:32 +0200215static unsigned int init_chipset_ali15x3(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216{
217 unsigned long flags;
218 u8 tmpbyte;
Alan Coxb1489002006-12-08 02:39:58 -0800219 struct pci_dev *north = pci_get_slot(dev->bus, PCI_DEVFN(0,0));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220
Auke Kok44c10132007-06-08 15:46:36 -0700221 m5229_revision = dev->revision;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222
Alan Coxb1489002006-12-08 02:39:58 -0800223 isa_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225 local_irq_save(flags);
226
227 if (m5229_revision < 0xC2) {
228 /*
229 * revision 0x20 (1543-E, 1543-F)
230 * revision 0xC0, 0xC1 (1543C-C, 1543C-D, 1543C-E)
231 * clear CD-ROM DMA write bit, m5229, 0x4b, bit 7
232 */
233 pci_read_config_byte(dev, 0x4b, &tmpbyte);
234 /*
235 * clear bit 7
236 */
237 pci_write_config_byte(dev, 0x4b, tmpbyte & 0x7F);
Bartlomiej Zolnierkiewiczcad221a2007-10-20 00:32:30 +0200238 /*
239 * check m1533, 0x5e, bit 1~4 == 1001 => & 00011110 = 00010010
240 */
241 if (m5229_revision >= 0x20 && isa_dev) {
242 pci_read_config_byte(isa_dev, 0x5e, &tmpbyte);
243 chip_is_1543c_e = ((tmpbyte & 0x1e) == 0x12) ? 1: 0;
244 }
Alan Coxb1489002006-12-08 02:39:58 -0800245 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246 }
247
248 /*
249 * 1543C-B?, 1535, 1535D, 1553
250 * Note 1: not all "motherboard" support this detection
251 * Note 2: if no udma 66 device, the detection may "error".
252 * but in this case, we will not set the device to
253 * ultra 66, the detection result is not important
254 */
255
256 /*
257 * enable "Cable Detection", m5229, 0x4b, bit3
258 */
259 pci_read_config_byte(dev, 0x4b, &tmpbyte);
260 pci_write_config_byte(dev, 0x4b, tmpbyte | 0x08);
261
262 /*
263 * We should only tune the 1533 enable if we are using an ALi
264 * North bridge. We might have no north found on some zany
265 * box without a device at 0:0.0. The ALi bridge will be at
266 * 0:0.0 so if we didn't find one we know what is cooking.
267 */
Alan Coxb1489002006-12-08 02:39:58 -0800268 if (north && north->vendor != PCI_VENDOR_ID_AL)
269 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270
271 if (m5229_revision < 0xC5 && isa_dev)
272 {
273 /*
274 * set south-bridge's enable bit, m1533, 0x79
275 */
276
277 pci_read_config_byte(isa_dev, 0x79, &tmpbyte);
278 if (m5229_revision == 0xC2) {
279 /*
280 * 1543C-B0 (m1533, 0x79, bit 2)
281 */
282 pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x04);
283 } else if (m5229_revision >= 0xC3) {
284 /*
285 * 1553/1535 (m1533, 0x79, bit 1)
286 */
287 pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x02);
288 }
289 }
Bartlomiej Zolnierkiewiczcad221a2007-10-20 00:32:30 +0200290
Alan Coxb1489002006-12-08 02:39:58 -0800291out:
Bartlomiej Zolnierkiewiczcad221a2007-10-20 00:32:30 +0200292 /*
293 * CD_ROM DMA on (m5229, 0x53, bit0)
294 * Enable this bit even if we want to use PIO.
295 * PIO FIFO off (m5229, 0x53, bit1)
296 * The hardware will use 0x54h and 0x55h to control PIO FIFO.
297 * (Not on later devices it seems)
298 *
299 * 0x53 changes meaning on later revs - we must no touch
300 * bit 1 on them. Need to check if 0x20 is the right break.
301 */
302 if (m5229_revision >= 0x20) {
303 pci_read_config_byte(dev, 0x53, &tmpbyte);
304
305 if (m5229_revision <= 0x20)
306 tmpbyte = (tmpbyte & (~0x02)) | 0x01;
307 else if (m5229_revision == 0xc7 || m5229_revision == 0xc8)
308 tmpbyte |= 0x03;
309 else
310 tmpbyte |= 0x01;
311
312 pci_write_config_byte(dev, 0x53, tmpbyte);
313 }
Alan Coxb1489002006-12-08 02:39:58 -0800314 pci_dev_put(north);
315 pci_dev_put(isa_dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316 local_irq_restore(flags);
317 return 0;
318}
319
Bartlomiej Zolnierkiewicz95ba8c12007-07-09 23:17:58 +0200320/*
321 * Cable special cases
322 */
323
Jeff Garzik18552562007-10-03 15:15:40 -0400324static const struct dmi_system_id cable_dmi_table[] = {
Bartlomiej Zolnierkiewicz95ba8c12007-07-09 23:17:58 +0200325 {
326 .ident = "HP Pavilion N5430",
327 .matches = {
328 DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
Bartlomiej Zolnierkiewicz8663fd62007-08-01 23:46:43 +0200329 DMI_MATCH(DMI_BOARD_VERSION, "OmniBook N32N-736"),
Bartlomiej Zolnierkiewicz95ba8c12007-07-09 23:17:58 +0200330 },
331 },
Daniel Exner03e6f482007-09-11 22:28:36 +0200332 {
333 .ident = "Toshiba Satellite S1800-814",
334 .matches = {
335 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
336 DMI_MATCH(DMI_PRODUCT_NAME, "S1800-814"),
337 },
338 },
Bartlomiej Zolnierkiewicz95ba8c12007-07-09 23:17:58 +0200339 { }
340};
341
342static int ali_cable_override(struct pci_dev *pdev)
343{
344 /* Fujitsu P2000 */
345 if (pdev->subsystem_vendor == 0x10CF &&
346 pdev->subsystem_device == 0x10AF)
347 return 1;
348
Bartlomiej Zolnierkiewiczd1514562007-11-27 21:35:56 +0100349 /* Mitac 8317 (Winbook-A) and relatives */
350 if (pdev->subsystem_vendor == 0x1071 &&
351 pdev->subsystem_device == 0x8317)
352 return 1;
353
Bartlomiej Zolnierkiewicz95ba8c12007-07-09 23:17:58 +0200354 /* Systems by DMI */
355 if (dmi_check_system(cable_dmi_table))
356 return 1;
357
358 return 0;
359}
360
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361/**
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200362 * ali_cable_detect - cable detection
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363 * @hwif: IDE interface
364 *
365 * This checks if the controller and the cable are capable
366 * of UDMA66 transfers. It doesn't check the drives.
367 * But see note 2 below!
368 *
369 * FIXME: frobs bits that are not defined on newer ALi devicea
370 */
371
Bartlomiej Zolnierkiewiczf454cbe2008-08-05 18:17:04 +0200372static u8 ali_cable_detect(ide_hwif_t *hwif)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373{
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100374 struct pci_dev *dev = to_pci_dev(hwif->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375 unsigned long flags;
Bartlomiej Zolnierkiewicz95ba8c12007-07-09 23:17:58 +0200376 u8 cbl = ATA_CBL_PATA40, tmpbyte;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377
378 local_irq_save(flags);
379
380 if (m5229_revision >= 0xC2) {
381 /*
Bartlomiej Zolnierkiewicz95ba8c12007-07-09 23:17:58 +0200382 * m5229 80-pin cable detection (from Host View)
383 *
384 * 0x4a bit0 is 0 => primary channel has 80-pin
385 * 0x4a bit1 is 0 => secondary channel has 80-pin
386 *
387 * Certain laptops use short but suitable cables
388 * and don't implement the detect logic.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700389 */
Bartlomiej Zolnierkiewicz95ba8c12007-07-09 23:17:58 +0200390 if (ali_cable_override(dev))
391 cbl = ATA_CBL_PATA40_SHORT;
392 else {
393 pci_read_config_byte(dev, 0x4a, &tmpbyte);
394 if ((tmpbyte & (1 << hwif->channel)) == 0)
395 cbl = ATA_CBL_PATA80;
396 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397 }
398
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399 local_irq_restore(flags);
400
Bartlomiej Zolnierkiewicz95ba8c12007-07-09 23:17:58 +0200401 return cbl;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402}
403
Anton Vorontsov6d1cee42008-04-29 22:57:38 +0200404#if !defined(CONFIG_SPARC64) && !defined(CONFIG_PPC)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405/**
406 * init_hwif_ali15x3 - Initialize the ALI IDE x86 stuff
407 * @hwif: interface to configure
408 *
409 * Obtain the IRQ tables for an ALi based IDE solution on the PC
410 * class platforms. This part of the code isn't applicable to the
Anton Vorontsov6d1cee42008-04-29 22:57:38 +0200411 * Sparc and PowerPC systems.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412 */
413
Herbert Xuc2f12582005-07-03 16:06:13 +0200414static void __devinit init_hwif_ali15x3 (ide_hwif_t *hwif)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415{
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100416 struct pci_dev *dev = to_pci_dev(hwif->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700417 u8 ideic, inmir;
418 s8 irq_routing_table[] = { -1, 9, 3, 10, 4, 5, 7, 6,
419 1, 11, 0, 12, 0, 14, 0, 15 };
420 int irq = -1;
421
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100422 if (dev->device == PCI_DEVICE_ID_AL_M5229)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423 hwif->irq = hwif->channel ? 15 : 14;
424
425 if (isa_dev) {
426 /*
427 * read IDE interface control
428 */
429 pci_read_config_byte(isa_dev, 0x58, &ideic);
430
431 /* bit0, bit1 */
432 ideic = ideic & 0x03;
433
434 /* get IRQ for IDE Controller */
435 if ((hwif->channel && ideic == 0x03) ||
436 (!hwif->channel && !ideic)) {
437 /*
438 * get SIRQ1 routing table
439 */
440 pci_read_config_byte(isa_dev, 0x44, &inmir);
441 inmir = inmir & 0x0f;
442 irq = irq_routing_table[inmir];
443 } else if (hwif->channel && !(ideic & 0x01)) {
444 /*
445 * get SIRQ2 routing table
446 */
447 pci_read_config_byte(isa_dev, 0x75, &inmir);
448 inmir = inmir & 0x0f;
449 irq = irq_routing_table[inmir];
450 }
451 if(irq >= 0)
452 hwif->irq = irq;
453 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454}
Anton Vorontsov6d1cee42008-04-29 22:57:38 +0200455#else
456#define init_hwif_ali15x3 NULL
457#endif /* !defined(CONFIG_SPARC64) && !defined(CONFIG_PPC) */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458
459/**
460 * init_dma_ali15x3 - set up DMA on ALi15x3
461 * @hwif: IDE interface
Bartlomiej Zolnierkiewiczb123f562008-04-26 22:25:22 +0200462 * @d: IDE port info
Linus Torvalds1da177e2005-04-16 15:20:36 -0700463 *
Bartlomiej Zolnierkiewiczb123f562008-04-26 22:25:22 +0200464 * Set up the DMA functionality on the ALi 15x3.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700465 */
466
Bartlomiej Zolnierkiewiczb123f562008-04-26 22:25:22 +0200467static int __devinit init_dma_ali15x3(ide_hwif_t *hwif,
468 const struct ide_port_info *d)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469{
Bartlomiej Zolnierkiewiczb123f562008-04-26 22:25:22 +0200470 struct pci_dev *dev = to_pci_dev(hwif->dev);
471 unsigned long base = ide_pci_dma_base(hwif, d);
472
Bartlomiej Zolnierkiewiczebb00fb2008-07-23 19:55:51 +0200473 if (base == 0)
474 return -1;
475
476 hwif->dma_base = base;
477
478 if (ide_pci_check_simplex(hwif, d) < 0)
479 return -1;
480
481 if (ide_pci_set_master(dev, d->name) < 0)
Bartlomiej Zolnierkiewiczb123f562008-04-26 22:25:22 +0200482 return -1;
483
Bartlomiej Zolnierkiewicz0ecdca22007-02-17 02:40:25 +0100484 if (!hwif->channel)
Bartlomiej Zolnierkiewiczb123f562008-04-26 22:25:22 +0200485 outb(inb(base + 2) & 0x60, base + 2);
486
487 printk(KERN_INFO " %s: BM-DMA at 0x%04lx-0x%04lx\n",
488 hwif->name, base, base + 7);
489
490 if (ide_allocate_dma_engine(hwif))
491 return -1;
492
Bartlomiej Zolnierkiewiczb123f562008-04-26 22:25:22 +0200493 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700494}
495
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200496static const struct ide_port_ops ali_port_ops = {
497 .set_pio_mode = ali_set_pio_mode,
498 .set_dma_mode = ali_set_dma_mode,
499 .udma_filter = ali_udma_filter,
500 .cable_detect = ali_cable_detect,
501};
502
Bartlomiej Zolnierkiewiczf37afda2008-04-26 22:25:24 +0200503static const struct ide_dma_ops ali_dma_ops = {
504 .dma_host_set = ide_dma_host_set,
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200505 .dma_setup = ali15x3_dma_setup,
Bartlomiej Zolnierkiewiczf37afda2008-04-26 22:25:24 +0200506 .dma_exec_cmd = ide_dma_exec_cmd,
507 .dma_start = ide_dma_start,
Bartlomiej Zolnierkiewicz653bcf52008-10-13 21:39:46 +0200508 .dma_end = ide_dma_end,
Bartlomiej Zolnierkiewiczf37afda2008-04-26 22:25:24 +0200509 .dma_test_irq = ide_dma_test_irq,
510 .dma_lost_irq = ide_dma_lost_irq,
511 .dma_timeout = ide_dma_timeout,
Sergei Shtylyov592b5312009-01-06 17:21:02 +0100512 .dma_sff_read_status = ide_dma_sff_read_status,
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200513};
514
Bartlomiej Zolnierkiewicz85620432007-10-20 00:32:34 +0200515static const struct ide_port_info ali15x3_chipset __devinitdata = {
Bartlomiej Zolnierkiewiczced3ec82008-07-24 22:53:32 +0200516 .name = DRV_NAME,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700517 .init_chipset = init_chipset_ali15x3,
518 .init_hwif = init_hwif_ali15x3,
519 .init_dma = init_dma_ali15x3,
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200520 .port_ops = &ali_port_ops,
Sergei Shtylyov3f023b02009-01-06 17:21:01 +0100521 .dma_ops = &sff_dma_ops,
Bartlomiej Zolnierkiewicz4099d142007-07-20 01:11:59 +0200522 .pio_mask = ATA_PIO5,
Bartlomiej Zolnierkiewicz5f8b6c32007-10-19 00:30:07 +0200523 .swdma_mask = ATA_SWDMA2,
524 .mwdma_mask = ATA_MWDMA2,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525};
526
527/**
528 * alim15x3_init_one - set up an ALi15x3 IDE controller
529 * @dev: PCI device to set up
530 *
531 * Perform the actual set up for an ALi15x3 that has been found by the
532 * hot plug layer.
533 */
534
535static int __devinit alim15x3_init_one(struct pci_dev *dev, const struct pci_device_id *id)
536{
Bartlomiej Zolnierkiewicz039788e2007-10-20 00:32:34 +0200537 struct ide_port_info d = ali15x3_chipset;
Bartlomiej Zolnierkiewicz8ac2b42a2008-02-01 23:09:30 +0100538 u8 rev = dev->revision, idx = id->driver_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700539
Bartlomiej Zolnierkiewicz28328302007-10-20 00:32:30 +0200540 /* don't use LBA48 DMA on ALi devices before rev 0xC5 */
541 if (rev <= 0xC4)
542 d.host_flags |= IDE_HFLAG_NO_LBA48_DMA;
543
544 if (rev >= 0x20) {
545 if (rev == 0x20)
546 d.host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
547
548 if (rev < 0xC2)
549 d.udma_mask = ATA_UDMA2;
550 else if (rev == 0xC2 || rev == 0xC3)
551 d.udma_mask = ATA_UDMA4;
552 else if (rev == 0xC4)
553 d.udma_mask = ATA_UDMA5;
554 else
555 d.udma_mask = ATA_UDMA6;
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200556
557 d.dma_ops = &ali_dma_ops;
Bartlomiej Zolnierkiewicz6d36b952008-04-26 22:25:21 +0200558 } else {
559 d.host_flags |= IDE_HFLAG_NO_DMA;
560
561 d.mwdma_mask = d.swdma_mask = 0;
Bartlomiej Zolnierkiewicz28328302007-10-20 00:32:30 +0200562 }
563
Bartlomiej Zolnierkiewicz8ac2b42a2008-02-01 23:09:30 +0100564 if (idx == 0)
565 d.host_flags |= IDE_HFLAG_CLEAR_SIMPLEX;
566
Bartlomiej Zolnierkiewicz6cdf6eb2008-07-24 22:53:14 +0200567 return ide_pci_init_one(dev, &d, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700568}
569
570
Bartlomiej Zolnierkiewicz9cbcc5e2007-10-16 22:29:56 +0200571static const struct pci_device_id alim15x3_pci_tbl[] = {
572 { PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5229), 0 },
Bartlomiej Zolnierkiewicz8ac2b42a2008-02-01 23:09:30 +0100573 { PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5228), 1 },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700574 { 0, },
575};
576MODULE_DEVICE_TABLE(pci, alim15x3_pci_tbl);
577
Bartlomiej Zolnierkiewicza9ab09e2008-10-13 21:39:41 +0200578static struct pci_driver alim15x3_pci_driver = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579 .name = "ALI15x3_IDE",
580 .id_table = alim15x3_pci_tbl,
581 .probe = alim15x3_init_one,
Bartlomiej Zolnierkiewicz8ee3f3b2008-07-24 22:53:19 +0200582 .remove = ide_pci_remove,
Bartlomiej Zolnierkiewiczfeb22b72008-10-10 22:39:32 +0200583 .suspend = ide_pci_suspend,
584 .resume = ide_pci_resume,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700585};
586
Bartlomiej Zolnierkiewicz82ab1ee2007-01-27 13:46:56 +0100587static int __init ali15x3_ide_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700588{
Bartlomiej Zolnierkiewicza9ab09e2008-10-13 21:39:41 +0200589 return ide_pci_register_driver(&alim15x3_pci_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590}
591
Bartlomiej Zolnierkiewicz8ee3f3b2008-07-24 22:53:19 +0200592static void __exit ali15x3_ide_exit(void)
593{
Hannes Eder95964012008-12-02 20:40:04 +0100594 pci_unregister_driver(&alim15x3_pci_driver);
Bartlomiej Zolnierkiewicz8ee3f3b2008-07-24 22:53:19 +0200595}
596
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597module_init(ali15x3_ide_init);
Bartlomiej Zolnierkiewicz8ee3f3b2008-07-24 22:53:19 +0200598module_exit(ali15x3_ide_exit);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700599
600MODULE_AUTHOR("Michael Aubry, Andrzej Krzysztofowicz, CJ, Andre Hedrick, Alan Cox");
601MODULE_DESCRIPTION("PCI driver module for ALi 15x3 IDE");
602MODULE_LICENSE("GPL");