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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 Zolnierkiewicz3c8cc8d2010-01-18 07:17:37 +000011 * Copyright (C) 2007-2010 Bartlomiej Zolnierkiewicz
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/*
43 * ALi devices are not plug in. Otherwise these static values would
44 * need to go. They ought to go away anyway
45 */
46
47static u8 m5229_revision;
48static u8 chip_is_1543c_e;
49static struct pci_dev *isa_dev;
50
Bartlomiej Zolnierkiewicz293f18a2010-01-18 07:17:50 +000051static void ali_fifo_control(ide_hwif_t *hwif, ide_drive_t *drive, int on)
52{
53 struct pci_dev *pdev = to_pci_dev(hwif->dev);
54 int pio_fifo = 0x54 + hwif->channel;
55 u8 fifo;
56 int shift = 4 * (drive->dn & 1);
57
58 pci_read_config_byte(pdev, pio_fifo, &fifo);
59 fifo &= ~(0x0F << shift);
60 fifo |= (on << shift);
61 pci_write_config_byte(pdev, pio_fifo, fifo);
62}
63
Bartlomiej Zolnierkiewicza345c782010-01-18 07:21:19 +000064static void ali_program_timings(ide_hwif_t *hwif, ide_drive_t *drive,
Bartlomiej Zolnierkiewicze4c71122010-01-18 07:21:26 +000065 struct ide_timing *t, u8 ultra)
Bartlomiej Zolnierkiewicza345c782010-01-18 07:21:19 +000066{
67 struct pci_dev *dev = to_pci_dev(hwif->dev);
68 int port = hwif->channel ? 0x5c : 0x58;
Bartlomiej Zolnierkiewicze4c71122010-01-18 07:21:26 +000069 int udmat = 0x56 + hwif->channel;
70 u8 unit = drive->dn & 1, udma;
71 int shift = 4 * unit;
72
73 /* Set up the UDMA */
74 pci_read_config_byte(dev, udmat, &udma);
75 udma &= ~(0x0F << shift);
76 udma |= ultra << shift;
77 pci_write_config_byte(dev, udmat, udma);
78
79 if (t == NULL)
80 return;
Bartlomiej Zolnierkiewicza345c782010-01-18 07:21:19 +000081
82 t->setup = clamp_val(t->setup, 1, 8) & 7;
83 t->act8b = clamp_val(t->act8b, 1, 8) & 7;
84 t->rec8b = clamp_val(t->rec8b, 1, 16) & 15;
85 t->active = clamp_val(t->active, 1, 8) & 7;
86 t->recover = clamp_val(t->recover, 1, 16) & 15;
87
88 pci_write_config_byte(dev, port, t->setup);
89 pci_write_config_byte(dev, port + 1, (t->act8b << 4) | t->rec8b);
90 pci_write_config_byte(dev, port + unit + 2,
91 (t->active << 4) | t->recover);
92}
93
Linus Torvalds1da177e2005-04-16 15:20:36 -070094/**
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +020095 * ali_set_pio_mode - set host controller for PIO mode
Bartlomiej Zolnierkiewicze085b3c2010-01-19 01:44:41 -080096 * @hwif: port
Bartlomiej Zolnierkiewicz26bcb872007-10-11 23:54:00 +020097 * @drive: drive
Linus Torvalds1da177e2005-04-16 15:20:36 -070098 *
Bartlomiej Zolnierkiewicz26bcb872007-10-11 23:54:00 +020099 * Program the controller for the given PIO mode.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700100 */
Bartlomiej Zolnierkiewicz26bcb872007-10-11 23:54:00 +0200101
Bartlomiej Zolnierkiewicze085b3c2010-01-19 01:44:41 -0800102static void ali_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103{
Bartlomiej Zolnierkiewiczcde727b2010-01-18 07:21:05 +0000104 ide_drive_t *pair = ide_get_pair_dev(drive);
Bartlomiej Zolnierkiewicz30e5ee42008-07-15 21:21:46 +0200105 int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
Bartlomiej Zolnierkiewicz3c8cc8d2010-01-18 07:17:37 +0000106 unsigned long T = 1000000 / bus_speed; /* PCI clock based */
Bartlomiej Zolnierkiewicz3c8cc8d2010-01-18 07:17:37 +0000107 struct ide_timing t;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108
Bartlomiej Zolnierkiewicze085b3c2010-01-19 01:44:41 -0800109 ide_timing_compute(drive, drive->pio_mode, &t, T, 1);
Bartlomiej Zolnierkiewiczcde727b2010-01-18 07:21:05 +0000110 if (pair) {
111 struct ide_timing p;
112
113 ide_timing_compute(pair, pair->pio_mode, &p, T, 1);
Bartlomiej Zolnierkiewicz57403452010-01-18 07:21:12 +0000114 ide_timing_merge(&p, &t, &t,
115 IDE_TIMING_SETUP | IDE_TIMING_8BIT);
Bartlomiej Zolnierkiewiczcde727b2010-01-18 07:21:05 +0000116 if (pair->dma_mode) {
117 ide_timing_compute(pair, pair->dma_mode, &p, T, 1);
Bartlomiej Zolnierkiewicz57403452010-01-18 07:21:12 +0000118 ide_timing_merge(&p, &t, &t,
119 IDE_TIMING_SETUP | IDE_TIMING_8BIT);
Bartlomiej Zolnierkiewiczcde727b2010-01-18 07:21:05 +0000120 }
121 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123 /*
124 * PIO mode => ATA FIFO on, ATAPI FIFO off
125 */
Bartlomiej Zolnierkiewicz293f18a2010-01-18 07:17:50 +0000126 ali_fifo_control(hwif, drive, (drive->media == ide_disk) ? 0x05 : 0x00);
Bartlomiej Zolnierkiewicz3c8cc8d2010-01-18 07:17:37 +0000127
Bartlomiej Zolnierkiewicze4c71122010-01-18 07:21:26 +0000128 ali_program_timings(hwif, drive, &t, 0);
Sergei Shtylyov21b82472007-03-03 17:48:52 +0100129}
130
131/**
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200132 * ali_udma_filter - compute UDMA mask
133 * @drive: IDE device
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134 *
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200135 * Return available UDMA modes.
136 *
137 * The actual rules for the ALi are:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138 * No UDMA on revisions <= 0x20
139 * Disk only for revisions < 0xC2
Bartlomiej Zolnierkiewicz63b16232008-05-14 23:06:16 +0200140 * Not WDC drives on M1543C-E (?)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141 */
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200142
143static u8 ali_udma_filter(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144{
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200145 if (m5229_revision > 0x20 && m5229_revision < 0xC2) {
146 if (drive->media != ide_disk)
147 return 0;
Bartlomiej Zolnierkiewicz2db3dae2009-12-03 17:25:57 +0100148 if (chip_is_1543c_e &&
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +0200149 strstr((char *)&drive->id[ATA_ID_PROD], "WDC "))
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200150 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151 }
152
Bartlomiej Zolnierkiewicz2d5eaa62007-05-10 00:01:08 +0200153 return drive->hwif->ultra_mask;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154}
155
156/**
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +0200157 * ali_set_dma_mode - set host controller for DMA mode
Bartlomiej Zolnierkiewicz87761682010-01-19 01:45:29 -0800158 * @hwif: port
Bartlomiej Zolnierkiewicz88b2b322007-10-13 17:47:51 +0200159 * @drive: drive
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160 *
161 * Configure the hardware for the desired IDE transfer mode.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162 */
Bartlomiej Zolnierkiewiczf212ff22007-10-11 23:53:59 +0200163
Bartlomiej Zolnierkiewicz87761682010-01-19 01:45:29 -0800164static void ali_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165{
Bartlomiej Zolnierkiewicze4c71122010-01-18 07:21:26 +0000166 static u8 udma_timing[7] = { 0xC, 0xB, 0xA, 0x9, 0x8, 0xF, 0xD };
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100167 struct pci_dev *dev = to_pci_dev(hwif->dev);
Bartlomiej Zolnierkiewicza345c782010-01-18 07:21:19 +0000168 ide_drive_t *pair = ide_get_pair_dev(drive);
169 int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
170 unsigned long T = 1000000 / bus_speed; /* PCI clock based */
Bartlomiej Zolnierkiewicz87761682010-01-19 01:45:29 -0800171 const u8 speed = drive->dma_mode;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172 u8 tmpbyte = 0x00;
Bartlomiej Zolnierkiewicza345c782010-01-18 07:21:19 +0000173 struct ide_timing t;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175 if (speed < XFER_UDMA_0) {
Bartlomiej Zolnierkiewicza345c782010-01-18 07:21:19 +0000176 ide_timing_compute(drive, drive->dma_mode, &t, T, 1);
177 if (pair) {
178 struct ide_timing p;
179
180 ide_timing_compute(pair, pair->pio_mode, &p, T, 1);
181 ide_timing_merge(&p, &t, &t,
182 IDE_TIMING_SETUP | IDE_TIMING_8BIT);
183 if (pair->dma_mode) {
184 ide_timing_compute(pair, pair->dma_mode,
185 &p, T, 1);
186 ide_timing_merge(&p, &t, &t,
187 IDE_TIMING_SETUP | IDE_TIMING_8BIT);
188 }
189 }
Bartlomiej Zolnierkiewicze4c71122010-01-18 07:21:26 +0000190 ali_program_timings(hwif, drive, &t, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700191 } else {
Bartlomiej Zolnierkiewicze4c71122010-01-18 07:21:26 +0000192 ali_program_timings(hwif, drive, NULL,
193 udma_timing[speed - XFER_UDMA_0]);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194 if (speed >= XFER_UDMA_3) {
195 pci_read_config_byte(dev, 0x4b, &tmpbyte);
196 tmpbyte |= 1;
197 pci_write_config_byte(dev, 0x4b, tmpbyte);
198 }
199 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200}
201
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202/**
Bartlomiej Zolnierkiewicz8a4a5732009-03-31 20:15:21 +0200203 * ali_dma_check - DMA check
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204 * @drive: target device
Bartlomiej Zolnierkiewicz229816942009-03-27 12:46:46 +0100205 * @cmd: command
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206 *
207 * Returns 1 if the DMA cannot be performed, zero on success.
208 */
209
Bartlomiej Zolnierkiewicz8a4a5732009-03-31 20:15:21 +0200210static int ali_dma_check(ide_drive_t *drive, struct ide_cmd *cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211{
212 if (m5229_revision < 0xC2 && drive->media != ide_disk) {
Bartlomiej Zolnierkiewicz229816942009-03-27 12:46:46 +0100213 if (cmd->tf_flags & IDE_TFLAG_WRITE)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214 return 1; /* try PIO instead of DMA */
215 }
Bartlomiej Zolnierkiewicz8a4a5732009-03-31 20:15:21 +0200216 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217}
218
219/**
220 * init_chipset_ali15x3 - Initialise an ALi IDE controller
221 * @dev: PCI device
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222 *
223 * This function initializes the ALI IDE controller and where
224 * appropriate also sets up the 1533 southbridge.
225 */
Bartlomiej Zolnierkiewicza326b022008-07-24 22:53:33 +0200226
Bartlomiej Zolnierkiewicz2ed0ef52009-03-24 23:22:53 +0100227static int init_chipset_ali15x3(struct pci_dev *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228{
229 unsigned long flags;
230 u8 tmpbyte;
Alan Coxb1489002006-12-08 02:39:58 -0800231 struct pci_dev *north = pci_get_slot(dev->bus, PCI_DEVFN(0,0));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232
Auke Kok44c10132007-06-08 15:46:36 -0700233 m5229_revision = dev->revision;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234
Alan Coxb1489002006-12-08 02:39:58 -0800235 isa_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237 local_irq_save(flags);
238
239 if (m5229_revision < 0xC2) {
240 /*
241 * revision 0x20 (1543-E, 1543-F)
242 * revision 0xC0, 0xC1 (1543C-C, 1543C-D, 1543C-E)
243 * clear CD-ROM DMA write bit, m5229, 0x4b, bit 7
244 */
245 pci_read_config_byte(dev, 0x4b, &tmpbyte);
246 /*
247 * clear bit 7
248 */
249 pci_write_config_byte(dev, 0x4b, tmpbyte & 0x7F);
Bartlomiej Zolnierkiewiczcad221a2007-10-20 00:32:30 +0200250 /*
251 * check m1533, 0x5e, bit 1~4 == 1001 => & 00011110 = 00010010
252 */
253 if (m5229_revision >= 0x20 && isa_dev) {
254 pci_read_config_byte(isa_dev, 0x5e, &tmpbyte);
255 chip_is_1543c_e = ((tmpbyte & 0x1e) == 0x12) ? 1: 0;
256 }
Alan Coxb1489002006-12-08 02:39:58 -0800257 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258 }
259
260 /*
261 * 1543C-B?, 1535, 1535D, 1553
262 * Note 1: not all "motherboard" support this detection
263 * Note 2: if no udma 66 device, the detection may "error".
264 * but in this case, we will not set the device to
265 * ultra 66, the detection result is not important
266 */
267
268 /*
269 * enable "Cable Detection", m5229, 0x4b, bit3
270 */
271 pci_read_config_byte(dev, 0x4b, &tmpbyte);
272 pci_write_config_byte(dev, 0x4b, tmpbyte | 0x08);
273
274 /*
275 * We should only tune the 1533 enable if we are using an ALi
276 * North bridge. We might have no north found on some zany
277 * box without a device at 0:0.0. The ALi bridge will be at
278 * 0:0.0 so if we didn't find one we know what is cooking.
279 */
Alan Coxb1489002006-12-08 02:39:58 -0800280 if (north && north->vendor != PCI_VENDOR_ID_AL)
281 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282
283 if (m5229_revision < 0xC5 && isa_dev)
284 {
285 /*
286 * set south-bridge's enable bit, m1533, 0x79
287 */
288
289 pci_read_config_byte(isa_dev, 0x79, &tmpbyte);
290 if (m5229_revision == 0xC2) {
291 /*
292 * 1543C-B0 (m1533, 0x79, bit 2)
293 */
294 pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x04);
295 } else if (m5229_revision >= 0xC3) {
296 /*
297 * 1553/1535 (m1533, 0x79, bit 1)
298 */
299 pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x02);
300 }
301 }
Bartlomiej Zolnierkiewiczcad221a2007-10-20 00:32:30 +0200302
Alan Coxb1489002006-12-08 02:39:58 -0800303out:
Bartlomiej Zolnierkiewiczcad221a2007-10-20 00:32:30 +0200304 /*
305 * CD_ROM DMA on (m5229, 0x53, bit0)
306 * Enable this bit even if we want to use PIO.
307 * PIO FIFO off (m5229, 0x53, bit1)
308 * The hardware will use 0x54h and 0x55h to control PIO FIFO.
309 * (Not on later devices it seems)
310 *
311 * 0x53 changes meaning on later revs - we must no touch
312 * bit 1 on them. Need to check if 0x20 is the right break.
313 */
314 if (m5229_revision >= 0x20) {
315 pci_read_config_byte(dev, 0x53, &tmpbyte);
316
317 if (m5229_revision <= 0x20)
318 tmpbyte = (tmpbyte & (~0x02)) | 0x01;
319 else if (m5229_revision == 0xc7 || m5229_revision == 0xc8)
320 tmpbyte |= 0x03;
321 else
322 tmpbyte |= 0x01;
323
324 pci_write_config_byte(dev, 0x53, tmpbyte);
325 }
Alan Coxb1489002006-12-08 02:39:58 -0800326 pci_dev_put(north);
327 pci_dev_put(isa_dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328 local_irq_restore(flags);
329 return 0;
330}
331
Bartlomiej Zolnierkiewicz95ba8c12007-07-09 23:17:58 +0200332/*
333 * Cable special cases
334 */
335
Jeff Garzik18552562007-10-03 15:15:40 -0400336static const struct dmi_system_id cable_dmi_table[] = {
Bartlomiej Zolnierkiewicz95ba8c12007-07-09 23:17:58 +0200337 {
338 .ident = "HP Pavilion N5430",
339 .matches = {
340 DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
Bartlomiej Zolnierkiewicz8663fd62007-08-01 23:46:43 +0200341 DMI_MATCH(DMI_BOARD_VERSION, "OmniBook N32N-736"),
Bartlomiej Zolnierkiewicz95ba8c12007-07-09 23:17:58 +0200342 },
343 },
Daniel Exner03e6f482007-09-11 22:28:36 +0200344 {
345 .ident = "Toshiba Satellite S1800-814",
346 .matches = {
347 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
348 DMI_MATCH(DMI_PRODUCT_NAME, "S1800-814"),
349 },
350 },
Bartlomiej Zolnierkiewicz95ba8c12007-07-09 23:17:58 +0200351 { }
352};
353
354static int ali_cable_override(struct pci_dev *pdev)
355{
356 /* Fujitsu P2000 */
357 if (pdev->subsystem_vendor == 0x10CF &&
358 pdev->subsystem_device == 0x10AF)
359 return 1;
360
Bartlomiej Zolnierkiewiczd1514562007-11-27 21:35:56 +0100361 /* Mitac 8317 (Winbook-A) and relatives */
362 if (pdev->subsystem_vendor == 0x1071 &&
363 pdev->subsystem_device == 0x8317)
364 return 1;
365
Bartlomiej Zolnierkiewicz95ba8c12007-07-09 23:17:58 +0200366 /* Systems by DMI */
367 if (dmi_check_system(cable_dmi_table))
368 return 1;
369
370 return 0;
371}
372
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373/**
Bartlomiej Zolnierkiewiczac95bee2008-04-26 22:25:14 +0200374 * ali_cable_detect - cable detection
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375 * @hwif: IDE interface
376 *
377 * This checks if the controller and the cable are capable
378 * of UDMA66 transfers. It doesn't check the drives.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379 */
380
Bartlomiej Zolnierkiewiczf454cbe2008-08-05 18:17:04 +0200381static u8 ali_cable_detect(ide_hwif_t *hwif)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382{
Bartlomiej Zolnierkiewicz36501652008-02-01 23:09:31 +0100383 struct pci_dev *dev = to_pci_dev(hwif->dev);
Bartlomiej Zolnierkiewicz95ba8c12007-07-09 23:17:58 +0200384 u8 cbl = ATA_CBL_PATA40, tmpbyte;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386 if (m5229_revision >= 0xC2) {
387 /*
Bartlomiej Zolnierkiewicz95ba8c12007-07-09 23:17:58 +0200388 * m5229 80-pin cable detection (from Host View)
389 *
390 * 0x4a bit0 is 0 => primary channel has 80-pin
391 * 0x4a bit1 is 0 => secondary channel has 80-pin
392 *
393 * Certain laptops use short but suitable cables
394 * and don't implement the detect logic.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700395 */
Bartlomiej Zolnierkiewicz95ba8c12007-07-09 23:17:58 +0200396 if (ali_cable_override(dev))
397 cbl = ATA_CBL_PATA40_SHORT;
398 else {
399 pci_read_config_byte(dev, 0x4a, &tmpbyte);
400 if ((tmpbyte & (1 << hwif->channel)) == 0)
401 cbl = ATA_CBL_PATA80;
402 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403 }
404
Bartlomiej Zolnierkiewicz95ba8c12007-07-09 23:17:58 +0200405 return cbl;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406}
407
Anton Vorontsov03682412009-04-30 18:38:01 +0200408#ifndef CONFIG_SPARC64
Linus Torvalds1da177e2005-04-16 15:20:36 -0700409/**
410 * init_hwif_ali15x3 - Initialize the ALI IDE x86 stuff
411 * @hwif: interface to configure
412 *
413 * Obtain the IRQ tables for an ALi based IDE solution on the PC
414 * class platforms. This part of the code isn't applicable to the
Anton Vorontsov03682412009-04-30 18:38:01 +0200415 * Sparc systems.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416 */
417
Herbert Xuc2f12582005-07-03 16:06:13 +0200418static void __devinit init_hwif_ali15x3 (ide_hwif_t *hwif)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419{
420 u8 ideic, inmir;
421 s8 irq_routing_table[] = { -1, 9, 3, 10, 4, 5, 7, 6,
422 1, 11, 0, 12, 0, 14, 0, 15 };
423 int irq = -1;
424
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425 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
Anton Vorontsov03682412009-04-30 18:38:01 +0200457#endif /* CONFIG_SPARC64 */
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 Zolnierkiewicz8a4a5732009-03-31 20:15:21 +0200505 .dma_setup = ide_dma_setup,
Bartlomiej Zolnierkiewiczf37afda2008-04-26 22:25:24 +0200506 .dma_start = ide_dma_start,
Bartlomiej Zolnierkiewicz653bcf52008-10-13 21:39:46 +0200507 .dma_end = ide_dma_end,
Bartlomiej Zolnierkiewiczf37afda2008-04-26 22:25:24 +0200508 .dma_test_irq = ide_dma_test_irq,
509 .dma_lost_irq = ide_dma_lost_irq,
Bartlomiej Zolnierkiewicz8a4a5732009-03-31 20:15:21 +0200510 .dma_check = ali_dma_check,
Bartlomiej Zolnierkiewicz22117d62009-03-27 12:46:47 +0100511 .dma_timer_expiry = ide_dma_sff_timer_expiry,
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 Zolnierkiewicz8ac2b422008-02-01 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 Zolnierkiewicz8ac2b422008-02-01 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 Zolnierkiewicz8ac2b422008-02-01 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
Bartlomiej Zolnierkiewicz3c8cc8d2010-01-18 07:17:37 +0000600MODULE_AUTHOR("Michael Aubry, Andrzej Krzysztofowicz, CJ, Andre Hedrick, Alan Cox, Bartlomiej Zolnierkiewicz");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601MODULE_DESCRIPTION("PCI driver module for ALi 15x3 IDE");
602MODULE_LICENSE("GPL");