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1da177e4 | 1 | /* |
af36d7f0 JG |
2 | * ata_piix.c - Intel PATA/SATA controllers |
3 | * | |
4 | * Maintained by: Jeff Garzik <jgarzik@pobox.com> | |
5 | * Please ALWAYS copy linux-ide@vger.kernel.org | |
6 | * on emails. | |
7 | * | |
8 | * | |
9 | * Copyright 2003-2005 Red Hat Inc | |
10 | * Copyright 2003-2005 Jeff Garzik | |
11 | * | |
12 | * | |
13 | * Copyright header from piix.c: | |
14 | * | |
15 | * Copyright (C) 1998-1999 Andrzej Krzysztofowicz, Author and Maintainer | |
16 | * Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org> | |
17 | * Copyright (C) 2003 Red Hat Inc <alan@redhat.com> | |
18 | * | |
19 | * | |
20 | * This program is free software; you can redistribute it and/or modify | |
21 | * it under the terms of the GNU General Public License as published by | |
22 | * the Free Software Foundation; either version 2, or (at your option) | |
23 | * any later version. | |
24 | * | |
25 | * This program is distributed in the hope that it will be useful, | |
26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
28 | * GNU General Public License for more details. | |
29 | * | |
30 | * You should have received a copy of the GNU General Public License | |
31 | * along with this program; see the file COPYING. If not, write to | |
32 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
33 | * | |
34 | * | |
35 | * libata documentation is available via 'make {ps|pdf}docs', | |
36 | * as Documentation/DocBook/libata.* | |
37 | * | |
38 | * Hardware documentation available at http://developer.intel.com/ | |
39 | * | |
d96212ed AC |
40 | * Documentation |
41 | * Publically available from Intel web site. Errata documentation | |
42 | * is also publically available. As an aide to anyone hacking on this | |
2c5ff671 | 43 | * driver the list of errata that are relevant is below, going back to |
d96212ed AC |
44 | * PIIX4. Older device documentation is now a bit tricky to find. |
45 | * | |
46 | * The chipsets all follow very much the same design. The orginal Triton | |
47 | * series chipsets do _not_ support independant device timings, but this | |
48 | * is fixed in Triton II. With the odd mobile exception the chips then | |
49 | * change little except in gaining more modes until SATA arrives. This | |
50 | * driver supports only the chips with independant timing (that is those | |
51 | * with SITRE and the 0x44 timing register). See pata_oldpiix and pata_mpiix | |
52 | * for the early chip drivers. | |
53 | * | |
54 | * Errata of note: | |
55 | * | |
56 | * Unfixable | |
57 | * PIIX4 errata #9 - Only on ultra obscure hw | |
58 | * ICH3 errata #13 - Not observed to affect real hw | |
59 | * by Intel | |
60 | * | |
61 | * Things we must deal with | |
62 | * PIIX4 errata #10 - BM IDE hang with non UDMA | |
63 | * (must stop/start dma to recover) | |
64 | * 440MX errata #15 - As PIIX4 errata #10 | |
65 | * PIIX4 errata #15 - Must not read control registers | |
66 | * during a PIO transfer | |
67 | * 440MX errata #13 - As PIIX4 errata #15 | |
68 | * ICH2 errata #21 - DMA mode 0 doesn't work right | |
69 | * ICH0/1 errata #55 - As ICH2 errata #21 | |
70 | * ICH2 spec c #9 - Extra operations needed to handle | |
71 | * drive hotswap [NOT YET SUPPORTED] | |
72 | * ICH2 spec c #20 - IDE PRD must not cross a 64K boundary | |
73 | * and must be dword aligned | |
74 | * ICH2 spec c #24 - UDMA mode 4,5 t85/86 should be 6ns not 3.3 | |
75 | * | |
76 | * Should have been BIOS fixed: | |
77 | * 450NX: errata #19 - DMA hangs on old 450NX | |
78 | * 450NX: errata #20 - DMA hangs on old 450NX | |
79 | * 450NX: errata #25 - Corruption with DMA on old 450NX | |
80 | * ICH3 errata #15 - IDE deadlock under high load | |
81 | * (BIOS must set dev 31 fn 0 bit 23) | |
82 | * ICH3 errata #18 - Don't use native mode | |
1da177e4 LT |
83 | */ |
84 | ||
85 | #include <linux/kernel.h> | |
86 | #include <linux/module.h> | |
87 | #include <linux/pci.h> | |
88 | #include <linux/init.h> | |
89 | #include <linux/blkdev.h> | |
90 | #include <linux/delay.h> | |
6248e647 | 91 | #include <linux/device.h> |
1da177e4 LT |
92 | #include <scsi/scsi_host.h> |
93 | #include <linux/libata.h> | |
b8b275ef | 94 | #include <linux/dmi.h> |
1da177e4 LT |
95 | |
96 | #define DRV_NAME "ata_piix" | |
2a3103ce | 97 | #define DRV_VERSION "2.12" |
1da177e4 LT |
98 | |
99 | enum { | |
100 | PIIX_IOCFG = 0x54, /* IDE I/O configuration register */ | |
101 | ICH5_PMR = 0x90, /* port mapping register */ | |
102 | ICH5_PCS = 0x92, /* port control and status */ | |
c7290724 TH |
103 | PIIX_SIDPR_BAR = 5, |
104 | PIIX_SIDPR_LEN = 16, | |
105 | PIIX_SIDPR_IDX = 0, | |
106 | PIIX_SIDPR_DATA = 4, | |
1da177e4 | 107 | |
ff0fc146 | 108 | PIIX_FLAG_CHECKINTR = (1 << 28), /* make sure PCI INTx enabled */ |
c7290724 | 109 | PIIX_FLAG_SIDPR = (1 << 29), /* SATA idx/data pair regs */ |
1da177e4 | 110 | |
800b3996 TH |
111 | PIIX_PATA_FLAGS = ATA_FLAG_SLAVE_POSS, |
112 | PIIX_SATA_FLAGS = ATA_FLAG_SATA | PIIX_FLAG_CHECKINTR, | |
b3362f88 | 113 | |
1da177e4 LT |
114 | PIIX_80C_PRI = (1 << 5) | (1 << 4), |
115 | PIIX_80C_SEC = (1 << 7) | (1 << 6), | |
116 | ||
d33f58b8 TH |
117 | /* constants for mapping table */ |
118 | P0 = 0, /* port 0 */ | |
119 | P1 = 1, /* port 1 */ | |
120 | P2 = 2, /* port 2 */ | |
121 | P3 = 3, /* port 3 */ | |
122 | IDE = -1, /* IDE */ | |
123 | NA = -2, /* not avaliable */ | |
124 | RV = -3, /* reserved */ | |
125 | ||
7b6dbd68 | 126 | PIIX_AHCI_DEVICE = 6, |
b8b275ef TH |
127 | |
128 | /* host->flags bits */ | |
129 | PIIX_HOST_BROKEN_SUSPEND = (1 << 24), | |
1da177e4 LT |
130 | }; |
131 | ||
9cde9ed1 TH |
132 | enum piix_controller_ids { |
133 | /* controller IDs */ | |
134 | piix_pata_mwdma, /* PIIX3 MWDMA only */ | |
135 | piix_pata_33, /* PIIX4 at 33Mhz */ | |
136 | ich_pata_33, /* ICH up to UDMA 33 only */ | |
137 | ich_pata_66, /* ICH up to 66 Mhz */ | |
138 | ich_pata_100, /* ICH up to UDMA 100 */ | |
139 | ich5_sata, | |
140 | ich6_sata, | |
9c0bf675 TH |
141 | ich6m_sata, |
142 | ich8_sata, | |
9cde9ed1 | 143 | ich8_2port_sata, |
9c0bf675 TH |
144 | ich8m_apple_sata, /* locks up on second port enable */ |
145 | tolapai_sata, | |
9cde9ed1 TH |
146 | piix_pata_vmw, /* PIIX4 for VMware, spurious DMA_ERR */ |
147 | }; | |
148 | ||
d33f58b8 TH |
149 | struct piix_map_db { |
150 | const u32 mask; | |
73291a1c | 151 | const u16 port_enable; |
d33f58b8 TH |
152 | const int map[][4]; |
153 | }; | |
154 | ||
d96715c1 TH |
155 | struct piix_host_priv { |
156 | const int *map; | |
c7290724 | 157 | void __iomem *sidpr; |
d96715c1 TH |
158 | }; |
159 | ||
2dcb407e JG |
160 | static int piix_init_one(struct pci_dev *pdev, |
161 | const struct pci_device_id *ent); | |
a1efdaba | 162 | static int piix_pata_prereset(struct ata_link *link, unsigned long deadline); |
2dcb407e JG |
163 | static void piix_set_piomode(struct ata_port *ap, struct ata_device *adev); |
164 | static void piix_set_dmamode(struct ata_port *ap, struct ata_device *adev); | |
165 | static void ich_set_dmamode(struct ata_port *ap, struct ata_device *adev); | |
eb4a2c7f | 166 | static int ich_pata_cable_detect(struct ata_port *ap); |
25f98131 | 167 | static u8 piix_vmw_bmdma_status(struct ata_port *ap); |
82ef04fb TH |
168 | static int piix_sidpr_scr_read(struct ata_link *link, |
169 | unsigned int reg, u32 *val); | |
170 | static int piix_sidpr_scr_write(struct ata_link *link, | |
171 | unsigned int reg, u32 val); | |
b8b275ef TH |
172 | #ifdef CONFIG_PM |
173 | static int piix_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg); | |
174 | static int piix_pci_device_resume(struct pci_dev *pdev); | |
175 | #endif | |
1da177e4 LT |
176 | |
177 | static unsigned int in_module_init = 1; | |
178 | ||
3b7d697d | 179 | static const struct pci_device_id piix_pci_tbl[] = { |
d2cdfc0d AC |
180 | /* Intel PIIX3 for the 430HX etc */ |
181 | { 0x8086, 0x7010, PCI_ANY_ID, PCI_ANY_ID, 0, 0, piix_pata_mwdma }, | |
25f98131 TH |
182 | /* VMware ICH4 */ |
183 | { 0x8086, 0x7111, 0x15ad, 0x1976, 0, 0, piix_pata_vmw }, | |
669a5db4 JG |
184 | /* Intel PIIX4 for the 430TX/440BX/MX chipset: UDMA 33 */ |
185 | /* Also PIIX4E (fn3 rev 2) and PIIX4M (fn3 rev 3) */ | |
186 | { 0x8086, 0x7111, PCI_ANY_ID, PCI_ANY_ID, 0, 0, piix_pata_33 }, | |
669a5db4 JG |
187 | /* Intel PIIX4 */ |
188 | { 0x8086, 0x7199, PCI_ANY_ID, PCI_ANY_ID, 0, 0, piix_pata_33 }, | |
189 | /* Intel PIIX4 */ | |
190 | { 0x8086, 0x7601, PCI_ANY_ID, PCI_ANY_ID, 0, 0, piix_pata_33 }, | |
191 | /* Intel PIIX */ | |
192 | { 0x8086, 0x84CA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, piix_pata_33 }, | |
193 | /* Intel ICH (i810, i815, i840) UDMA 66*/ | |
194 | { 0x8086, 0x2411, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_66 }, | |
195 | /* Intel ICH0 : UDMA 33*/ | |
196 | { 0x8086, 0x2421, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_33 }, | |
197 | /* Intel ICH2M */ | |
198 | { 0x8086, 0x244A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 }, | |
199 | /* Intel ICH2 (i810E2, i845, 850, 860) UDMA 100 */ | |
200 | { 0x8086, 0x244B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 }, | |
201 | /* Intel ICH3M */ | |
202 | { 0x8086, 0x248A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 }, | |
203 | /* Intel ICH3 (E7500/1) UDMA 100 */ | |
204 | { 0x8086, 0x248B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 }, | |
205 | /* Intel ICH4 (i845GV, i845E, i852, i855) UDMA 100 */ | |
206 | { 0x8086, 0x24CA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 }, | |
207 | { 0x8086, 0x24CB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 }, | |
208 | /* Intel ICH5 */ | |
2eb829e9 | 209 | { 0x8086, 0x24DB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 }, |
669a5db4 JG |
210 | /* C-ICH (i810E2) */ |
211 | { 0x8086, 0x245B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 }, | |
85cd7251 | 212 | /* ESB (855GME/875P + 6300ESB) UDMA 100 */ |
669a5db4 JG |
213 | { 0x8086, 0x25A2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 }, |
214 | /* ICH6 (and 6) (i915) UDMA 100 */ | |
215 | { 0x8086, 0x266F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 }, | |
216 | /* ICH7/7-R (i945, i975) UDMA 100*/ | |
2eb829e9 | 217 | { 0x8086, 0x27DF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 }, |
669a5db4 | 218 | { 0x8086, 0x269E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 }, |
c1e6f28c CL |
219 | /* ICH8 Mobile PATA Controller */ |
220 | { 0x8086, 0x2850, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 }, | |
1da177e4 LT |
221 | |
222 | /* NOTE: The following PCI ids must be kept in sync with the | |
223 | * list in drivers/pci/quirks.c. | |
224 | */ | |
225 | ||
1d076e5b | 226 | /* 82801EB (ICH5) */ |
1da177e4 | 227 | { 0x8086, 0x24d1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_sata }, |
1d076e5b | 228 | /* 82801EB (ICH5) */ |
1da177e4 | 229 | { 0x8086, 0x24df, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_sata }, |
1d076e5b | 230 | /* 6300ESB (ICH5 variant with broken PCS present bits) */ |
5e56a37c | 231 | { 0x8086, 0x25a3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_sata }, |
1d076e5b | 232 | /* 6300ESB pretending RAID */ |
5e56a37c | 233 | { 0x8086, 0x25b0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_sata }, |
1d076e5b | 234 | /* 82801FB/FW (ICH6/ICH6W) */ |
1da177e4 | 235 | { 0x8086, 0x2651, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata }, |
1d076e5b | 236 | /* 82801FR/FRW (ICH6R/ICH6RW) */ |
9c0bf675 | 237 | { 0x8086, 0x2652, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata }, |
5016d7d2 TH |
238 | /* 82801FBM ICH6M (ICH6R with only port 0 and 2 implemented). |
239 | * Attach iff the controller is in IDE mode. */ | |
240 | { 0x8086, 0x2653, PCI_ANY_ID, PCI_ANY_ID, | |
9c0bf675 | 241 | PCI_CLASS_STORAGE_IDE << 8, 0xffff00, ich6m_sata }, |
1d076e5b | 242 | /* 82801GB/GR/GH (ICH7, identical to ICH6) */ |
9c0bf675 | 243 | { 0x8086, 0x27c0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata }, |
1d076e5b | 244 | /* 2801GBM/GHM (ICH7M, identical to ICH6M) */ |
9c0bf675 | 245 | { 0x8086, 0x27c4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6m_sata }, |
f98b6573 | 246 | /* Enterprise Southbridge 2 (631xESB/632xESB) */ |
9c0bf675 | 247 | { 0x8086, 0x2680, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata }, |
f98b6573 | 248 | /* SATA Controller 1 IDE (ICH8) */ |
9c0bf675 | 249 | { 0x8086, 0x2820, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata }, |
f98b6573 | 250 | /* SATA Controller 2 IDE (ICH8) */ |
00242ec8 | 251 | { 0x8086, 0x2825, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, |
8d8ef2fb | 252 | /* Mobile SATA Controller IDE (ICH8M), Apple */ |
9c0bf675 | 253 | { 0x8086, 0x2828, 0x106b, 0x00a0, 0, 0, ich8m_apple_sata }, |
23cf296e | 254 | { 0x8086, 0x2828, 0x106b, 0x00a1, 0, 0, ich8m_apple_sata }, |
487eff68 | 255 | { 0x8086, 0x2828, 0x106b, 0x00a3, 0, 0, ich8m_apple_sata }, |
23cf296e TH |
256 | /* Mobile SATA Controller IDE (ICH8M) */ |
257 | { 0x8086, 0x2828, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata }, | |
f98b6573 | 258 | /* SATA Controller IDE (ICH9) */ |
9c0bf675 | 259 | { 0x8086, 0x2920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata }, |
f98b6573 | 260 | /* SATA Controller IDE (ICH9) */ |
00242ec8 | 261 | { 0x8086, 0x2921, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, |
f98b6573 | 262 | /* SATA Controller IDE (ICH9) */ |
00242ec8 | 263 | { 0x8086, 0x2926, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, |
f98b6573 | 264 | /* SATA Controller IDE (ICH9M) */ |
00242ec8 | 265 | { 0x8086, 0x2928, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, |
f98b6573 | 266 | /* SATA Controller IDE (ICH9M) */ |
00242ec8 | 267 | { 0x8086, 0x292d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, |
f98b6573 | 268 | /* SATA Controller IDE (ICH9M) */ |
9c0bf675 | 269 | { 0x8086, 0x292e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata }, |
c5cf0ffa | 270 | /* SATA Controller IDE (Tolapai) */ |
9c0bf675 | 271 | { 0x8086, 0x5028, PCI_ANY_ID, PCI_ANY_ID, 0, 0, tolapai_sata }, |
bf7f22b9 | 272 | /* SATA Controller IDE (ICH10) */ |
9c0bf675 | 273 | { 0x8086, 0x3a00, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata }, |
bf7f22b9 JG |
274 | /* SATA Controller IDE (ICH10) */ |
275 | { 0x8086, 0x3a06, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, | |
276 | /* SATA Controller IDE (ICH10) */ | |
9c0bf675 | 277 | { 0x8086, 0x3a20, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata }, |
bf7f22b9 JG |
278 | /* SATA Controller IDE (ICH10) */ |
279 | { 0x8086, 0x3a26, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, | |
c6c6a1af SH |
280 | /* SATA Controller IDE (PCH) */ |
281 | { 0x8086, 0x3b20, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata }, | |
282 | /* SATA Controller IDE (PCH) */ | |
283 | { 0x8086, 0x3b26, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, | |
284 | /* SATA Controller IDE (PCH) */ | |
285 | { 0x8086, 0x3b2d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, | |
286 | /* SATA Controller IDE (PCH) */ | |
287 | { 0x8086, 0x3b2e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata }, | |
1da177e4 LT |
288 | |
289 | { } /* terminate list */ | |
290 | }; | |
291 | ||
292 | static struct pci_driver piix_pci_driver = { | |
293 | .name = DRV_NAME, | |
294 | .id_table = piix_pci_tbl, | |
295 | .probe = piix_init_one, | |
296 | .remove = ata_pci_remove_one, | |
438ac6d5 | 297 | #ifdef CONFIG_PM |
b8b275ef TH |
298 | .suspend = piix_pci_device_suspend, |
299 | .resume = piix_pci_device_resume, | |
438ac6d5 | 300 | #endif |
1da177e4 LT |
301 | }; |
302 | ||
193515d5 | 303 | static struct scsi_host_template piix_sht = { |
68d1d07b | 304 | ATA_BMDMA_SHT(DRV_NAME), |
1da177e4 LT |
305 | }; |
306 | ||
029cfd6b TH |
307 | static struct ata_port_operations piix_pata_ops = { |
308 | .inherits = &ata_bmdma_port_ops, | |
309 | .cable_detect = ata_cable_40wire, | |
1da177e4 LT |
310 | .set_piomode = piix_set_piomode, |
311 | .set_dmamode = piix_set_dmamode, | |
a1efdaba | 312 | .prereset = piix_pata_prereset, |
1da177e4 LT |
313 | }; |
314 | ||
029cfd6b TH |
315 | static struct ata_port_operations piix_vmw_ops = { |
316 | .inherits = &piix_pata_ops, | |
317 | .bmdma_status = piix_vmw_bmdma_status, | |
669a5db4 JG |
318 | }; |
319 | ||
029cfd6b TH |
320 | static struct ata_port_operations ich_pata_ops = { |
321 | .inherits = &piix_pata_ops, | |
322 | .cable_detect = ich_pata_cable_detect, | |
323 | .set_dmamode = ich_set_dmamode, | |
1da177e4 LT |
324 | }; |
325 | ||
029cfd6b TH |
326 | static struct ata_port_operations piix_sata_ops = { |
327 | .inherits = &ata_bmdma_port_ops, | |
25f98131 TH |
328 | }; |
329 | ||
029cfd6b TH |
330 | static struct ata_port_operations piix_sidpr_sata_ops = { |
331 | .inherits = &piix_sata_ops, | |
57c9efdf | 332 | .hardreset = sata_std_hardreset, |
c7290724 TH |
333 | .scr_read = piix_sidpr_scr_read, |
334 | .scr_write = piix_sidpr_scr_write, | |
c7290724 TH |
335 | }; |
336 | ||
d96715c1 | 337 | static const struct piix_map_db ich5_map_db = { |
d33f58b8 | 338 | .mask = 0x7, |
ea35d29e | 339 | .port_enable = 0x3, |
d33f58b8 TH |
340 | .map = { |
341 | /* PM PS SM SS MAP */ | |
342 | { P0, NA, P1, NA }, /* 000b */ | |
343 | { P1, NA, P0, NA }, /* 001b */ | |
344 | { RV, RV, RV, RV }, | |
345 | { RV, RV, RV, RV }, | |
346 | { P0, P1, IDE, IDE }, /* 100b */ | |
347 | { P1, P0, IDE, IDE }, /* 101b */ | |
348 | { IDE, IDE, P0, P1 }, /* 110b */ | |
349 | { IDE, IDE, P1, P0 }, /* 111b */ | |
350 | }, | |
351 | }; | |
352 | ||
d96715c1 | 353 | static const struct piix_map_db ich6_map_db = { |
d33f58b8 | 354 | .mask = 0x3, |
ea35d29e | 355 | .port_enable = 0xf, |
d33f58b8 TH |
356 | .map = { |
357 | /* PM PS SM SS MAP */ | |
79ea24e7 | 358 | { P0, P2, P1, P3 }, /* 00b */ |
d33f58b8 TH |
359 | { IDE, IDE, P1, P3 }, /* 01b */ |
360 | { P0, P2, IDE, IDE }, /* 10b */ | |
361 | { RV, RV, RV, RV }, | |
362 | }, | |
363 | }; | |
364 | ||
d96715c1 | 365 | static const struct piix_map_db ich6m_map_db = { |
d33f58b8 | 366 | .mask = 0x3, |
ea35d29e | 367 | .port_enable = 0x5, |
67083741 TH |
368 | |
369 | /* Map 01b isn't specified in the doc but some notebooks use | |
c6446a4c TH |
370 | * it anyway. MAP 01b have been spotted on both ICH6M and |
371 | * ICH7M. | |
67083741 TH |
372 | */ |
373 | .map = { | |
374 | /* PM PS SM SS MAP */ | |
e04b3b9d | 375 | { P0, P2, NA, NA }, /* 00b */ |
67083741 TH |
376 | { IDE, IDE, P1, P3 }, /* 01b */ |
377 | { P0, P2, IDE, IDE }, /* 10b */ | |
378 | { RV, RV, RV, RV }, | |
379 | }, | |
380 | }; | |
381 | ||
08f12edc JG |
382 | static const struct piix_map_db ich8_map_db = { |
383 | .mask = 0x3, | |
a0ce9aca | 384 | .port_enable = 0xf, |
08f12edc JG |
385 | .map = { |
386 | /* PM PS SM SS MAP */ | |
158f30c8 | 387 | { P0, P2, P1, P3 }, /* 00b (hardwired when in AHCI) */ |
08f12edc | 388 | { RV, RV, RV, RV }, |
ac2b0437 | 389 | { P0, P2, IDE, IDE }, /* 10b (IDE mode) */ |
08f12edc JG |
390 | { RV, RV, RV, RV }, |
391 | }, | |
392 | }; | |
393 | ||
00242ec8 | 394 | static const struct piix_map_db ich8_2port_map_db = { |
e2d352af JG |
395 | .mask = 0x3, |
396 | .port_enable = 0x3, | |
397 | .map = { | |
398 | /* PM PS SM SS MAP */ | |
399 | { P0, NA, P1, NA }, /* 00b */ | |
400 | { RV, RV, RV, RV }, /* 01b */ | |
401 | { RV, RV, RV, RV }, /* 10b */ | |
402 | { RV, RV, RV, RV }, | |
403 | }, | |
c5cf0ffa JG |
404 | }; |
405 | ||
8d8ef2fb TR |
406 | static const struct piix_map_db ich8m_apple_map_db = { |
407 | .mask = 0x3, | |
408 | .port_enable = 0x1, | |
409 | .map = { | |
410 | /* PM PS SM SS MAP */ | |
411 | { P0, NA, NA, NA }, /* 00b */ | |
412 | { RV, RV, RV, RV }, | |
413 | { P0, P2, IDE, IDE }, /* 10b */ | |
414 | { RV, RV, RV, RV }, | |
415 | }, | |
416 | }; | |
417 | ||
00242ec8 | 418 | static const struct piix_map_db tolapai_map_db = { |
8f73a688 JG |
419 | .mask = 0x3, |
420 | .port_enable = 0x3, | |
421 | .map = { | |
422 | /* PM PS SM SS MAP */ | |
423 | { P0, NA, P1, NA }, /* 00b */ | |
424 | { RV, RV, RV, RV }, /* 01b */ | |
425 | { RV, RV, RV, RV }, /* 10b */ | |
426 | { RV, RV, RV, RV }, | |
427 | }, | |
428 | }; | |
429 | ||
d96715c1 TH |
430 | static const struct piix_map_db *piix_map_db_table[] = { |
431 | [ich5_sata] = &ich5_map_db, | |
d96715c1 | 432 | [ich6_sata] = &ich6_map_db, |
9c0bf675 TH |
433 | [ich6m_sata] = &ich6m_map_db, |
434 | [ich8_sata] = &ich8_map_db, | |
00242ec8 | 435 | [ich8_2port_sata] = &ich8_2port_map_db, |
9c0bf675 TH |
436 | [ich8m_apple_sata] = &ich8m_apple_map_db, |
437 | [tolapai_sata] = &tolapai_map_db, | |
d96715c1 TH |
438 | }; |
439 | ||
1da177e4 | 440 | static struct ata_port_info piix_port_info[] = { |
00242ec8 TH |
441 | [piix_pata_mwdma] = /* PIIX3 MWDMA only */ |
442 | { | |
00242ec8 TH |
443 | .flags = PIIX_PATA_FLAGS, |
444 | .pio_mask = 0x1f, /* pio0-4 */ | |
445 | .mwdma_mask = 0x06, /* mwdma1-2 ?? CHECK 0 should be ok but slow */ | |
446 | .port_ops = &piix_pata_ops, | |
447 | }, | |
448 | ||
ec300d99 | 449 | [piix_pata_33] = /* PIIX4 at 33MHz */ |
1d076e5b | 450 | { |
b3362f88 | 451 | .flags = PIIX_PATA_FLAGS, |
1d076e5b | 452 | .pio_mask = 0x1f, /* pio0-4 */ |
669a5db4 | 453 | .mwdma_mask = 0x06, /* mwdma1-2 ?? CHECK 0 should be ok but slow */ |
1d076e5b TH |
454 | .udma_mask = ATA_UDMA_MASK_40C, |
455 | .port_ops = &piix_pata_ops, | |
456 | }, | |
457 | ||
ec300d99 | 458 | [ich_pata_33] = /* ICH0 - ICH at 33Mhz*/ |
669a5db4 | 459 | { |
b3362f88 | 460 | .flags = PIIX_PATA_FLAGS, |
669a5db4 JG |
461 | .pio_mask = 0x1f, /* pio 0-4 */ |
462 | .mwdma_mask = 0x06, /* Check: maybe 0x07 */ | |
463 | .udma_mask = ATA_UDMA2, /* UDMA33 */ | |
464 | .port_ops = &ich_pata_ops, | |
465 | }, | |
ec300d99 JG |
466 | |
467 | [ich_pata_66] = /* ICH controllers up to 66MHz */ | |
1da177e4 | 468 | { |
b3362f88 | 469 | .flags = PIIX_PATA_FLAGS, |
669a5db4 JG |
470 | .pio_mask = 0x1f, /* pio 0-4 */ |
471 | .mwdma_mask = 0x06, /* MWDMA0 is broken on chip */ | |
472 | .udma_mask = ATA_UDMA4, | |
473 | .port_ops = &ich_pata_ops, | |
474 | }, | |
85cd7251 | 475 | |
ec300d99 | 476 | [ich_pata_100] = |
669a5db4 | 477 | { |
b3362f88 | 478 | .flags = PIIX_PATA_FLAGS | PIIX_FLAG_CHECKINTR, |
1da177e4 | 479 | .pio_mask = 0x1f, /* pio0-4 */ |
1da177e4 | 480 | .mwdma_mask = 0x06, /* mwdma1-2 */ |
669a5db4 JG |
481 | .udma_mask = ATA_UDMA5, /* udma0-5 */ |
482 | .port_ops = &ich_pata_ops, | |
1da177e4 LT |
483 | }, |
484 | ||
ec300d99 | 485 | [ich5_sata] = |
1da177e4 | 486 | { |
228c1590 | 487 | .flags = PIIX_SATA_FLAGS, |
1da177e4 LT |
488 | .pio_mask = 0x1f, /* pio0-4 */ |
489 | .mwdma_mask = 0x07, /* mwdma0-2 */ | |
bf6263a8 | 490 | .udma_mask = ATA_UDMA6, |
1da177e4 LT |
491 | .port_ops = &piix_sata_ops, |
492 | }, | |
493 | ||
ec300d99 | 494 | [ich6_sata] = |
1da177e4 | 495 | { |
723159c5 | 496 | .flags = PIIX_SATA_FLAGS, |
1da177e4 LT |
497 | .pio_mask = 0x1f, /* pio0-4 */ |
498 | .mwdma_mask = 0x07, /* mwdma0-2 */ | |
bf6263a8 | 499 | .udma_mask = ATA_UDMA6, |
1da177e4 LT |
500 | .port_ops = &piix_sata_ops, |
501 | }, | |
502 | ||
9c0bf675 | 503 | [ich6m_sata] = |
c368ca4e | 504 | { |
5016d7d2 | 505 | .flags = PIIX_SATA_FLAGS, |
c368ca4e JG |
506 | .pio_mask = 0x1f, /* pio0-4 */ |
507 | .mwdma_mask = 0x07, /* mwdma0-2 */ | |
bf6263a8 | 508 | .udma_mask = ATA_UDMA6, |
c368ca4e JG |
509 | .port_ops = &piix_sata_ops, |
510 | }, | |
1d076e5b | 511 | |
9c0bf675 | 512 | [ich8_sata] = |
08f12edc | 513 | { |
5016d7d2 | 514 | .flags = PIIX_SATA_FLAGS | PIIX_FLAG_SIDPR, |
08f12edc JG |
515 | .pio_mask = 0x1f, /* pio0-4 */ |
516 | .mwdma_mask = 0x07, /* mwdma0-2 */ | |
bf6263a8 | 517 | .udma_mask = ATA_UDMA6, |
08f12edc JG |
518 | .port_ops = &piix_sata_ops, |
519 | }, | |
669a5db4 | 520 | |
00242ec8 | 521 | [ich8_2port_sata] = |
c5cf0ffa | 522 | { |
5016d7d2 | 523 | .flags = PIIX_SATA_FLAGS | PIIX_FLAG_SIDPR, |
c5cf0ffa JG |
524 | .pio_mask = 0x1f, /* pio0-4 */ |
525 | .mwdma_mask = 0x07, /* mwdma0-2 */ | |
526 | .udma_mask = ATA_UDMA6, | |
527 | .port_ops = &piix_sata_ops, | |
528 | }, | |
8f73a688 | 529 | |
9c0bf675 | 530 | [tolapai_sata] = |
8f73a688 | 531 | { |
5016d7d2 | 532 | .flags = PIIX_SATA_FLAGS, |
8f73a688 JG |
533 | .pio_mask = 0x1f, /* pio0-4 */ |
534 | .mwdma_mask = 0x07, /* mwdma0-2 */ | |
535 | .udma_mask = ATA_UDMA6, | |
536 | .port_ops = &piix_sata_ops, | |
537 | }, | |
8d8ef2fb | 538 | |
9c0bf675 | 539 | [ich8m_apple_sata] = |
8d8ef2fb | 540 | { |
23cf296e | 541 | .flags = PIIX_SATA_FLAGS, |
8d8ef2fb TR |
542 | .pio_mask = 0x1f, /* pio0-4 */ |
543 | .mwdma_mask = 0x07, /* mwdma0-2 */ | |
544 | .udma_mask = ATA_UDMA6, | |
545 | .port_ops = &piix_sata_ops, | |
546 | }, | |
547 | ||
25f98131 TH |
548 | [piix_pata_vmw] = |
549 | { | |
25f98131 TH |
550 | .flags = PIIX_PATA_FLAGS, |
551 | .pio_mask = 0x1f, /* pio0-4 */ | |
552 | .mwdma_mask = 0x06, /* mwdma1-2 ?? CHECK 0 should be ok but slow */ | |
553 | .udma_mask = ATA_UDMA_MASK_40C, | |
554 | .port_ops = &piix_vmw_ops, | |
555 | }, | |
556 | ||
1da177e4 LT |
557 | }; |
558 | ||
559 | static struct pci_bits piix_enable_bits[] = { | |
560 | { 0x41U, 1U, 0x80UL, 0x80UL }, /* port 0 */ | |
561 | { 0x43U, 1U, 0x80UL, 0x80UL }, /* port 1 */ | |
562 | }; | |
563 | ||
564 | MODULE_AUTHOR("Andre Hedrick, Alan Cox, Andrzej Krzysztofowicz, Jeff Garzik"); | |
565 | MODULE_DESCRIPTION("SCSI low-level driver for Intel PIIX/ICH ATA controllers"); | |
566 | MODULE_LICENSE("GPL"); | |
567 | MODULE_DEVICE_TABLE(pci, piix_pci_tbl); | |
568 | MODULE_VERSION(DRV_VERSION); | |
569 | ||
fc085150 AC |
570 | struct ich_laptop { |
571 | u16 device; | |
572 | u16 subvendor; | |
573 | u16 subdevice; | |
574 | }; | |
575 | ||
576 | /* | |
577 | * List of laptops that use short cables rather than 80 wire | |
578 | */ | |
579 | ||
580 | static const struct ich_laptop ich_laptop[] = { | |
581 | /* devid, subvendor, subdev */ | |
582 | { 0x27DF, 0x0005, 0x0280 }, /* ICH7 on Acer 5602WLMi */ | |
2655e2ce | 583 | { 0x27DF, 0x1025, 0x0102 }, /* ICH7 on Acer 5602aWLMi */ |
babfb682 | 584 | { 0x27DF, 0x1025, 0x0110 }, /* ICH7 on Acer 3682WLMi */ |
12340106 | 585 | { 0x27DF, 0x1043, 0x1267 }, /* ICH7 on Asus W5F */ |
54174db3 | 586 | { 0x27DF, 0x103C, 0x30A1 }, /* ICH7 on HP Compaq nc2400 */ |
b33620f9 | 587 | { 0x24CA, 0x1025, 0x0061 }, /* ICH4 on ACER Aspire 2023WLMi */ |
e1fefea9 CIK |
588 | { 0x24CA, 0x1025, 0x003d }, /* ICH4 on ACER TM290 */ |
589 | { 0x266F, 0x1025, 0x0066 }, /* ICH6 on ACER Aspire 1694WLMi */ | |
01ce2601 | 590 | { 0x2653, 0x1043, 0x82D8 }, /* ICH6M on Asus Eee 701 */ |
fc085150 AC |
591 | /* end marker */ |
592 | { 0, } | |
593 | }; | |
594 | ||
1da177e4 | 595 | /** |
eb4a2c7f | 596 | * ich_pata_cable_detect - Probe host controller cable detect info |
1da177e4 LT |
597 | * @ap: Port for which cable detect info is desired |
598 | * | |
599 | * Read 80c cable indicator from ATA PCI device's PCI config | |
600 | * register. This register is normally set by firmware (BIOS). | |
601 | * | |
602 | * LOCKING: | |
603 | * None (inherited from caller). | |
604 | */ | |
669a5db4 | 605 | |
eb4a2c7f | 606 | static int ich_pata_cable_detect(struct ata_port *ap) |
1da177e4 | 607 | { |
cca3974e | 608 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
fc085150 | 609 | const struct ich_laptop *lap = &ich_laptop[0]; |
1da177e4 LT |
610 | u8 tmp, mask; |
611 | ||
fc085150 AC |
612 | /* Check for specials - Acer Aspire 5602WLMi */ |
613 | while (lap->device) { | |
614 | if (lap->device == pdev->device && | |
615 | lap->subvendor == pdev->subsystem_vendor && | |
2dcb407e | 616 | lap->subdevice == pdev->subsystem_device) |
eb4a2c7f | 617 | return ATA_CBL_PATA40_SHORT; |
2dcb407e | 618 | |
fc085150 AC |
619 | lap++; |
620 | } | |
621 | ||
1da177e4 | 622 | /* check BIOS cable detect results */ |
2a88d1ac | 623 | mask = ap->port_no == 0 ? PIIX_80C_PRI : PIIX_80C_SEC; |
1da177e4 LT |
624 | pci_read_config_byte(pdev, PIIX_IOCFG, &tmp); |
625 | if ((tmp & mask) == 0) | |
eb4a2c7f AC |
626 | return ATA_CBL_PATA40; |
627 | return ATA_CBL_PATA80; | |
1da177e4 LT |
628 | } |
629 | ||
630 | /** | |
ccc4672a | 631 | * piix_pata_prereset - prereset for PATA host controller |
cc0680a5 | 632 | * @link: Target link |
d4b2bab4 | 633 | * @deadline: deadline jiffies for the operation |
1da177e4 | 634 | * |
573db6b8 TH |
635 | * LOCKING: |
636 | * None (inherited from caller). | |
637 | */ | |
cc0680a5 | 638 | static int piix_pata_prereset(struct ata_link *link, unsigned long deadline) |
1da177e4 | 639 | { |
cc0680a5 | 640 | struct ata_port *ap = link->ap; |
cca3974e | 641 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
1da177e4 | 642 | |
c961922b AC |
643 | if (!pci_test_config_bits(pdev, &piix_enable_bits[ap->port_no])) |
644 | return -ENOENT; | |
9363c382 | 645 | return ata_sff_prereset(link, deadline); |
ccc4672a TH |
646 | } |
647 | ||
1da177e4 LT |
648 | /** |
649 | * piix_set_piomode - Initialize host controller PATA PIO timings | |
650 | * @ap: Port whose timings we are configuring | |
651 | * @adev: um | |
1da177e4 LT |
652 | * |
653 | * Set PIO mode for device, in host controller PCI config space. | |
654 | * | |
655 | * LOCKING: | |
656 | * None (inherited from caller). | |
657 | */ | |
658 | ||
2dcb407e | 659 | static void piix_set_piomode(struct ata_port *ap, struct ata_device *adev) |
1da177e4 LT |
660 | { |
661 | unsigned int pio = adev->pio_mode - XFER_PIO_0; | |
cca3974e | 662 | struct pci_dev *dev = to_pci_dev(ap->host->dev); |
1da177e4 | 663 | unsigned int is_slave = (adev->devno != 0); |
2a88d1ac | 664 | unsigned int master_port= ap->port_no ? 0x42 : 0x40; |
1da177e4 LT |
665 | unsigned int slave_port = 0x44; |
666 | u16 master_data; | |
667 | u8 slave_data; | |
669a5db4 JG |
668 | u8 udma_enable; |
669 | int control = 0; | |
85cd7251 | 670 | |
669a5db4 JG |
671 | /* |
672 | * See Intel Document 298600-004 for the timing programing rules | |
673 | * for ICH controllers. | |
674 | */ | |
1da177e4 LT |
675 | |
676 | static const /* ISP RTC */ | |
677 | u8 timings[][2] = { { 0, 0 }, | |
678 | { 0, 0 }, | |
679 | { 1, 0 }, | |
680 | { 2, 1 }, | |
681 | { 2, 3 }, }; | |
682 | ||
669a5db4 JG |
683 | if (pio >= 2) |
684 | control |= 1; /* TIME1 enable */ | |
685 | if (ata_pio_need_iordy(adev)) | |
686 | control |= 2; /* IE enable */ | |
687 | ||
85cd7251 | 688 | /* Intel specifies that the PPE functionality is for disk only */ |
669a5db4 JG |
689 | if (adev->class == ATA_DEV_ATA) |
690 | control |= 4; /* PPE enable */ | |
691 | ||
a5bf5f5a TH |
692 | /* PIO configuration clears DTE unconditionally. It will be |
693 | * programmed in set_dmamode which is guaranteed to be called | |
694 | * after set_piomode if any DMA mode is available. | |
695 | */ | |
1da177e4 LT |
696 | pci_read_config_word(dev, master_port, &master_data); |
697 | if (is_slave) { | |
a5bf5f5a TH |
698 | /* clear TIME1|IE1|PPE1|DTE1 */ |
699 | master_data &= 0xff0f; | |
1967b7ff | 700 | /* Enable SITRE (separate slave timing register) */ |
1da177e4 | 701 | master_data |= 0x4000; |
669a5db4 JG |
702 | /* enable PPE1, IE1 and TIME1 as needed */ |
703 | master_data |= (control << 4); | |
1da177e4 | 704 | pci_read_config_byte(dev, slave_port, &slave_data); |
2a88d1ac | 705 | slave_data &= (ap->port_no ? 0x0f : 0xf0); |
669a5db4 | 706 | /* Load the timing nibble for this slave */ |
a5bf5f5a TH |
707 | slave_data |= ((timings[pio][0] << 2) | timings[pio][1]) |
708 | << (ap->port_no ? 4 : 0); | |
1da177e4 | 709 | } else { |
a5bf5f5a TH |
710 | /* clear ISP|RCT|TIME0|IE0|PPE0|DTE0 */ |
711 | master_data &= 0xccf0; | |
669a5db4 JG |
712 | /* Enable PPE, IE and TIME as appropriate */ |
713 | master_data |= control; | |
a5bf5f5a | 714 | /* load ISP and RCT */ |
1da177e4 LT |
715 | master_data |= |
716 | (timings[pio][0] << 12) | | |
717 | (timings[pio][1] << 8); | |
718 | } | |
719 | pci_write_config_word(dev, master_port, master_data); | |
720 | if (is_slave) | |
721 | pci_write_config_byte(dev, slave_port, slave_data); | |
669a5db4 JG |
722 | |
723 | /* Ensure the UDMA bit is off - it will be turned back on if | |
724 | UDMA is selected */ | |
85cd7251 | 725 | |
669a5db4 JG |
726 | if (ap->udma_mask) { |
727 | pci_read_config_byte(dev, 0x48, &udma_enable); | |
728 | udma_enable &= ~(1 << (2 * ap->port_no + adev->devno)); | |
729 | pci_write_config_byte(dev, 0x48, udma_enable); | |
730 | } | |
1da177e4 LT |
731 | } |
732 | ||
733 | /** | |
669a5db4 | 734 | * do_pata_set_dmamode - Initialize host controller PATA PIO timings |
1da177e4 | 735 | * @ap: Port whose timings we are configuring |
669a5db4 | 736 | * @adev: Drive in question |
1da177e4 | 737 | * @udma: udma mode, 0 - 6 |
c32a8fd7 | 738 | * @isich: set if the chip is an ICH device |
1da177e4 LT |
739 | * |
740 | * Set UDMA mode for device, in host controller PCI config space. | |
741 | * | |
742 | * LOCKING: | |
743 | * None (inherited from caller). | |
744 | */ | |
745 | ||
2dcb407e | 746 | static void do_pata_set_dmamode(struct ata_port *ap, struct ata_device *adev, int isich) |
1da177e4 | 747 | { |
cca3974e | 748 | struct pci_dev *dev = to_pci_dev(ap->host->dev); |
669a5db4 JG |
749 | u8 master_port = ap->port_no ? 0x42 : 0x40; |
750 | u16 master_data; | |
751 | u8 speed = adev->dma_mode; | |
752 | int devid = adev->devno + 2 * ap->port_no; | |
dedf61db | 753 | u8 udma_enable = 0; |
85cd7251 | 754 | |
669a5db4 JG |
755 | static const /* ISP RTC */ |
756 | u8 timings[][2] = { { 0, 0 }, | |
757 | { 0, 0 }, | |
758 | { 1, 0 }, | |
759 | { 2, 1 }, | |
760 | { 2, 3 }, }; | |
761 | ||
762 | pci_read_config_word(dev, master_port, &master_data); | |
d2cdfc0d AC |
763 | if (ap->udma_mask) |
764 | pci_read_config_byte(dev, 0x48, &udma_enable); | |
1da177e4 LT |
765 | |
766 | if (speed >= XFER_UDMA_0) { | |
669a5db4 JG |
767 | unsigned int udma = adev->dma_mode - XFER_UDMA_0; |
768 | u16 udma_timing; | |
769 | u16 ideconf; | |
770 | int u_clock, u_speed; | |
85cd7251 | 771 | |
669a5db4 | 772 | /* |
2dcb407e | 773 | * UDMA is handled by a combination of clock switching and |
85cd7251 JG |
774 | * selection of dividers |
775 | * | |
669a5db4 | 776 | * Handy rule: Odd modes are UDMATIMx 01, even are 02 |
85cd7251 | 777 | * except UDMA0 which is 00 |
669a5db4 JG |
778 | */ |
779 | u_speed = min(2 - (udma & 1), udma); | |
780 | if (udma == 5) | |
781 | u_clock = 0x1000; /* 100Mhz */ | |
782 | else if (udma > 2) | |
783 | u_clock = 1; /* 66Mhz */ | |
784 | else | |
785 | u_clock = 0; /* 33Mhz */ | |
85cd7251 | 786 | |
669a5db4 | 787 | udma_enable |= (1 << devid); |
85cd7251 | 788 | |
669a5db4 JG |
789 | /* Load the CT/RP selection */ |
790 | pci_read_config_word(dev, 0x4A, &udma_timing); | |
791 | udma_timing &= ~(3 << (4 * devid)); | |
792 | udma_timing |= u_speed << (4 * devid); | |
793 | pci_write_config_word(dev, 0x4A, udma_timing); | |
794 | ||
85cd7251 | 795 | if (isich) { |
669a5db4 JG |
796 | /* Select a 33/66/100Mhz clock */ |
797 | pci_read_config_word(dev, 0x54, &ideconf); | |
798 | ideconf &= ~(0x1001 << devid); | |
799 | ideconf |= u_clock << devid; | |
800 | /* For ICH or later we should set bit 10 for better | |
801 | performance (WR_PingPong_En) */ | |
802 | pci_write_config_word(dev, 0x54, ideconf); | |
1da177e4 | 803 | } |
1da177e4 | 804 | } else { |
669a5db4 JG |
805 | /* |
806 | * MWDMA is driven by the PIO timings. We must also enable | |
807 | * IORDY unconditionally along with TIME1. PPE has already | |
808 | * been set when the PIO timing was set. | |
809 | */ | |
810 | unsigned int mwdma = adev->dma_mode - XFER_MW_DMA_0; | |
811 | unsigned int control; | |
812 | u8 slave_data; | |
813 | const unsigned int needed_pio[3] = { | |
814 | XFER_PIO_0, XFER_PIO_3, XFER_PIO_4 | |
815 | }; | |
816 | int pio = needed_pio[mwdma] - XFER_PIO_0; | |
85cd7251 | 817 | |
669a5db4 | 818 | control = 3; /* IORDY|TIME1 */ |
85cd7251 | 819 | |
669a5db4 JG |
820 | /* If the drive MWDMA is faster than it can do PIO then |
821 | we must force PIO into PIO0 */ | |
85cd7251 | 822 | |
669a5db4 JG |
823 | if (adev->pio_mode < needed_pio[mwdma]) |
824 | /* Enable DMA timing only */ | |
825 | control |= 8; /* PIO cycles in PIO0 */ | |
826 | ||
827 | if (adev->devno) { /* Slave */ | |
828 | master_data &= 0xFF4F; /* Mask out IORDY|TIME1|DMAONLY */ | |
829 | master_data |= control << 4; | |
830 | pci_read_config_byte(dev, 0x44, &slave_data); | |
a5bf5f5a | 831 | slave_data &= (ap->port_no ? 0x0f : 0xf0); |
669a5db4 JG |
832 | /* Load the matching timing */ |
833 | slave_data |= ((timings[pio][0] << 2) | timings[pio][1]) << (ap->port_no ? 4 : 0); | |
834 | pci_write_config_byte(dev, 0x44, slave_data); | |
835 | } else { /* Master */ | |
85cd7251 | 836 | master_data &= 0xCCF4; /* Mask out IORDY|TIME1|DMAONLY |
669a5db4 JG |
837 | and master timing bits */ |
838 | master_data |= control; | |
839 | master_data |= | |
840 | (timings[pio][0] << 12) | | |
841 | (timings[pio][1] << 8); | |
842 | } | |
a5bf5f5a TH |
843 | |
844 | if (ap->udma_mask) { | |
845 | udma_enable &= ~(1 << devid); | |
846 | pci_write_config_word(dev, master_port, master_data); | |
847 | } | |
1da177e4 | 848 | } |
669a5db4 JG |
849 | /* Don't scribble on 0x48 if the controller does not support UDMA */ |
850 | if (ap->udma_mask) | |
851 | pci_write_config_byte(dev, 0x48, udma_enable); | |
852 | } | |
853 | ||
854 | /** | |
855 | * piix_set_dmamode - Initialize host controller PATA DMA timings | |
856 | * @ap: Port whose timings we are configuring | |
857 | * @adev: um | |
858 | * | |
859 | * Set MW/UDMA mode for device, in host controller PCI config space. | |
860 | * | |
861 | * LOCKING: | |
862 | * None (inherited from caller). | |
863 | */ | |
864 | ||
2dcb407e | 865 | static void piix_set_dmamode(struct ata_port *ap, struct ata_device *adev) |
669a5db4 JG |
866 | { |
867 | do_pata_set_dmamode(ap, adev, 0); | |
868 | } | |
869 | ||
870 | /** | |
871 | * ich_set_dmamode - Initialize host controller PATA DMA timings | |
872 | * @ap: Port whose timings we are configuring | |
873 | * @adev: um | |
874 | * | |
875 | * Set MW/UDMA mode for device, in host controller PCI config space. | |
876 | * | |
877 | * LOCKING: | |
878 | * None (inherited from caller). | |
879 | */ | |
880 | ||
2dcb407e | 881 | static void ich_set_dmamode(struct ata_port *ap, struct ata_device *adev) |
669a5db4 JG |
882 | { |
883 | do_pata_set_dmamode(ap, adev, 1); | |
1da177e4 LT |
884 | } |
885 | ||
c7290724 TH |
886 | /* |
887 | * Serial ATA Index/Data Pair Superset Registers access | |
888 | * | |
889 | * Beginning from ICH8, there's a sane way to access SCRs using index | |
be77e43a TH |
890 | * and data register pair located at BAR5 which means that we have |
891 | * separate SCRs for master and slave. This is handled using libata | |
892 | * slave_link facility. | |
c7290724 TH |
893 | */ |
894 | static const int piix_sidx_map[] = { | |
895 | [SCR_STATUS] = 0, | |
896 | [SCR_ERROR] = 2, | |
897 | [SCR_CONTROL] = 1, | |
898 | }; | |
899 | ||
be77e43a | 900 | static void piix_sidpr_sel(struct ata_link *link, unsigned int reg) |
c7290724 | 901 | { |
be77e43a | 902 | struct ata_port *ap = link->ap; |
c7290724 TH |
903 | struct piix_host_priv *hpriv = ap->host->private_data; |
904 | ||
be77e43a | 905 | iowrite32(((ap->port_no * 2 + link->pmp) << 8) | piix_sidx_map[reg], |
c7290724 TH |
906 | hpriv->sidpr + PIIX_SIDPR_IDX); |
907 | } | |
908 | ||
82ef04fb TH |
909 | static int piix_sidpr_scr_read(struct ata_link *link, |
910 | unsigned int reg, u32 *val) | |
c7290724 | 911 | { |
be77e43a | 912 | struct piix_host_priv *hpriv = link->ap->host->private_data; |
c7290724 TH |
913 | |
914 | if (reg >= ARRAY_SIZE(piix_sidx_map)) | |
915 | return -EINVAL; | |
916 | ||
be77e43a TH |
917 | piix_sidpr_sel(link, reg); |
918 | *val = ioread32(hpriv->sidpr + PIIX_SIDPR_DATA); | |
c7290724 TH |
919 | return 0; |
920 | } | |
921 | ||
82ef04fb TH |
922 | static int piix_sidpr_scr_write(struct ata_link *link, |
923 | unsigned int reg, u32 val) | |
c7290724 | 924 | { |
be77e43a | 925 | struct piix_host_priv *hpriv = link->ap->host->private_data; |
82ef04fb | 926 | |
c7290724 TH |
927 | if (reg >= ARRAY_SIZE(piix_sidx_map)) |
928 | return -EINVAL; | |
929 | ||
be77e43a TH |
930 | piix_sidpr_sel(link, reg); |
931 | iowrite32(val, hpriv->sidpr + PIIX_SIDPR_DATA); | |
c7290724 TH |
932 | return 0; |
933 | } | |
934 | ||
b8b275ef | 935 | #ifdef CONFIG_PM |
8c3832eb TH |
936 | static int piix_broken_suspend(void) |
937 | { | |
1855256c | 938 | static const struct dmi_system_id sysids[] = { |
4c74d4ec TH |
939 | { |
940 | .ident = "TECRA M3", | |
941 | .matches = { | |
942 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
943 | DMI_MATCH(DMI_PRODUCT_NAME, "TECRA M3"), | |
944 | }, | |
945 | }, | |
04d86d6f PS |
946 | { |
947 | .ident = "TECRA M3", | |
948 | .matches = { | |
949 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
950 | DMI_MATCH(DMI_PRODUCT_NAME, "Tecra M3"), | |
951 | }, | |
952 | }, | |
d1aa690a PS |
953 | { |
954 | .ident = "TECRA M4", | |
955 | .matches = { | |
956 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
957 | DMI_MATCH(DMI_PRODUCT_NAME, "Tecra M4"), | |
958 | }, | |
959 | }, | |
040dee53 TH |
960 | { |
961 | .ident = "TECRA M4", | |
962 | .matches = { | |
963 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
964 | DMI_MATCH(DMI_PRODUCT_NAME, "TECRA M4"), | |
965 | }, | |
966 | }, | |
8c3832eb TH |
967 | { |
968 | .ident = "TECRA M5", | |
969 | .matches = { | |
970 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
971 | DMI_MATCH(DMI_PRODUCT_NAME, "TECRA M5"), | |
972 | }, | |
b8b275ef | 973 | }, |
ffe188dd PS |
974 | { |
975 | .ident = "TECRA M6", | |
976 | .matches = { | |
977 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
978 | DMI_MATCH(DMI_PRODUCT_NAME, "TECRA M6"), | |
979 | }, | |
980 | }, | |
5c08ea01 TH |
981 | { |
982 | .ident = "TECRA M7", | |
983 | .matches = { | |
984 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
985 | DMI_MATCH(DMI_PRODUCT_NAME, "TECRA M7"), | |
986 | }, | |
987 | }, | |
04d86d6f PS |
988 | { |
989 | .ident = "TECRA A8", | |
990 | .matches = { | |
991 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
992 | DMI_MATCH(DMI_PRODUCT_NAME, "TECRA A8"), | |
993 | }, | |
994 | }, | |
ffe188dd PS |
995 | { |
996 | .ident = "Satellite R20", | |
997 | .matches = { | |
998 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
999 | DMI_MATCH(DMI_PRODUCT_NAME, "Satellite R20"), | |
1000 | }, | |
1001 | }, | |
04d86d6f PS |
1002 | { |
1003 | .ident = "Satellite R25", | |
1004 | .matches = { | |
1005 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1006 | DMI_MATCH(DMI_PRODUCT_NAME, "Satellite R25"), | |
1007 | }, | |
1008 | }, | |
3cc0b9d3 TH |
1009 | { |
1010 | .ident = "Satellite U200", | |
1011 | .matches = { | |
1012 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1013 | DMI_MATCH(DMI_PRODUCT_NAME, "Satellite U200"), | |
1014 | }, | |
1015 | }, | |
04d86d6f PS |
1016 | { |
1017 | .ident = "Satellite U200", | |
1018 | .matches = { | |
1019 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1020 | DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE U200"), | |
1021 | }, | |
1022 | }, | |
62320e23 YC |
1023 | { |
1024 | .ident = "Satellite Pro U200", | |
1025 | .matches = { | |
1026 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1027 | DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE PRO U200"), | |
1028 | }, | |
1029 | }, | |
8c3832eb TH |
1030 | { |
1031 | .ident = "Satellite U205", | |
1032 | .matches = { | |
1033 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1034 | DMI_MATCH(DMI_PRODUCT_NAME, "Satellite U205"), | |
1035 | }, | |
b8b275ef | 1036 | }, |
de753e5e TH |
1037 | { |
1038 | .ident = "SATELLITE U205", | |
1039 | .matches = { | |
1040 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1041 | DMI_MATCH(DMI_PRODUCT_NAME, "SATELLITE U205"), | |
1042 | }, | |
1043 | }, | |
8c3832eb TH |
1044 | { |
1045 | .ident = "Portege M500", | |
1046 | .matches = { | |
1047 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1048 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M500"), | |
1049 | }, | |
b8b275ef | 1050 | }, |
7d051548 JG |
1051 | |
1052 | { } /* terminate list */ | |
8c3832eb | 1053 | }; |
7abe79c3 TH |
1054 | static const char *oemstrs[] = { |
1055 | "Tecra M3,", | |
1056 | }; | |
1057 | int i; | |
8c3832eb TH |
1058 | |
1059 | if (dmi_check_system(sysids)) | |
1060 | return 1; | |
1061 | ||
7abe79c3 TH |
1062 | for (i = 0; i < ARRAY_SIZE(oemstrs); i++) |
1063 | if (dmi_find_device(DMI_DEV_TYPE_OEM_STRING, oemstrs[i], NULL)) | |
1064 | return 1; | |
1065 | ||
8c3832eb TH |
1066 | return 0; |
1067 | } | |
b8b275ef TH |
1068 | |
1069 | static int piix_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg) | |
1070 | { | |
1071 | struct ata_host *host = dev_get_drvdata(&pdev->dev); | |
1072 | unsigned long flags; | |
1073 | int rc = 0; | |
1074 | ||
1075 | rc = ata_host_suspend(host, mesg); | |
1076 | if (rc) | |
1077 | return rc; | |
1078 | ||
1079 | /* Some braindamaged ACPI suspend implementations expect the | |
1080 | * controller to be awake on entry; otherwise, it burns cpu | |
1081 | * cycles and power trying to do something to the sleeping | |
1082 | * beauty. | |
1083 | */ | |
3a2d5b70 | 1084 | if (piix_broken_suspend() && (mesg.event & PM_EVENT_SLEEP)) { |
b8b275ef TH |
1085 | pci_save_state(pdev); |
1086 | ||
1087 | /* mark its power state as "unknown", since we don't | |
1088 | * know if e.g. the BIOS will change its device state | |
1089 | * when we suspend. | |
1090 | */ | |
1091 | if (pdev->current_state == PCI_D0) | |
1092 | pdev->current_state = PCI_UNKNOWN; | |
1093 | ||
1094 | /* tell resume that it's waking up from broken suspend */ | |
1095 | spin_lock_irqsave(&host->lock, flags); | |
1096 | host->flags |= PIIX_HOST_BROKEN_SUSPEND; | |
1097 | spin_unlock_irqrestore(&host->lock, flags); | |
1098 | } else | |
1099 | ata_pci_device_do_suspend(pdev, mesg); | |
1100 | ||
1101 | return 0; | |
1102 | } | |
1103 | ||
1104 | static int piix_pci_device_resume(struct pci_dev *pdev) | |
1105 | { | |
1106 | struct ata_host *host = dev_get_drvdata(&pdev->dev); | |
1107 | unsigned long flags; | |
1108 | int rc; | |
1109 | ||
1110 | if (host->flags & PIIX_HOST_BROKEN_SUSPEND) { | |
1111 | spin_lock_irqsave(&host->lock, flags); | |
1112 | host->flags &= ~PIIX_HOST_BROKEN_SUSPEND; | |
1113 | spin_unlock_irqrestore(&host->lock, flags); | |
1114 | ||
1115 | pci_set_power_state(pdev, PCI_D0); | |
1116 | pci_restore_state(pdev); | |
1117 | ||
1118 | /* PCI device wasn't disabled during suspend. Use | |
0b62e13b TH |
1119 | * pci_reenable_device() to avoid affecting the enable |
1120 | * count. | |
b8b275ef | 1121 | */ |
0b62e13b | 1122 | rc = pci_reenable_device(pdev); |
b8b275ef TH |
1123 | if (rc) |
1124 | dev_printk(KERN_ERR, &pdev->dev, "failed to enable " | |
1125 | "device after resume (%d)\n", rc); | |
1126 | } else | |
1127 | rc = ata_pci_device_do_resume(pdev); | |
1128 | ||
1129 | if (rc == 0) | |
1130 | ata_host_resume(host); | |
1131 | ||
1132 | return rc; | |
1133 | } | |
1134 | #endif | |
1135 | ||
25f98131 TH |
1136 | static u8 piix_vmw_bmdma_status(struct ata_port *ap) |
1137 | { | |
1138 | return ata_bmdma_status(ap) & ~ATA_DMA_ERR; | |
1139 | } | |
1140 | ||
1da177e4 LT |
1141 | #define AHCI_PCI_BAR 5 |
1142 | #define AHCI_GLOBAL_CTL 0x04 | |
1143 | #define AHCI_ENABLE (1 << 31) | |
1144 | static int piix_disable_ahci(struct pci_dev *pdev) | |
1145 | { | |
ea6ba10b | 1146 | void __iomem *mmio; |
1da177e4 LT |
1147 | u32 tmp; |
1148 | int rc = 0; | |
1149 | ||
1150 | /* BUG: pci_enable_device has not yet been called. This | |
1151 | * works because this device is usually set up by BIOS. | |
1152 | */ | |
1153 | ||
374b1873 JG |
1154 | if (!pci_resource_start(pdev, AHCI_PCI_BAR) || |
1155 | !pci_resource_len(pdev, AHCI_PCI_BAR)) | |
1da177e4 | 1156 | return 0; |
7b6dbd68 | 1157 | |
374b1873 | 1158 | mmio = pci_iomap(pdev, AHCI_PCI_BAR, 64); |
1da177e4 LT |
1159 | if (!mmio) |
1160 | return -ENOMEM; | |
7b6dbd68 | 1161 | |
c47a631f | 1162 | tmp = ioread32(mmio + AHCI_GLOBAL_CTL); |
1da177e4 LT |
1163 | if (tmp & AHCI_ENABLE) { |
1164 | tmp &= ~AHCI_ENABLE; | |
c47a631f | 1165 | iowrite32(tmp, mmio + AHCI_GLOBAL_CTL); |
1da177e4 | 1166 | |
c47a631f | 1167 | tmp = ioread32(mmio + AHCI_GLOBAL_CTL); |
1da177e4 LT |
1168 | if (tmp & AHCI_ENABLE) |
1169 | rc = -EIO; | |
1170 | } | |
7b6dbd68 | 1171 | |
374b1873 | 1172 | pci_iounmap(pdev, mmio); |
1da177e4 LT |
1173 | return rc; |
1174 | } | |
1175 | ||
c621b140 AC |
1176 | /** |
1177 | * piix_check_450nx_errata - Check for problem 450NX setup | |
c893a3ae | 1178 | * @ata_dev: the PCI device to check |
2e9edbf8 | 1179 | * |
c621b140 AC |
1180 | * Check for the present of 450NX errata #19 and errata #25. If |
1181 | * they are found return an error code so we can turn off DMA | |
1182 | */ | |
1183 | ||
1184 | static int __devinit piix_check_450nx_errata(struct pci_dev *ata_dev) | |
1185 | { | |
1186 | struct pci_dev *pdev = NULL; | |
1187 | u16 cfg; | |
c621b140 | 1188 | int no_piix_dma = 0; |
2e9edbf8 | 1189 | |
2dcb407e | 1190 | while ((pdev = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, pdev)) != NULL) { |
c621b140 AC |
1191 | /* Look for 450NX PXB. Check for problem configurations |
1192 | A PCI quirk checks bit 6 already */ | |
c621b140 AC |
1193 | pci_read_config_word(pdev, 0x41, &cfg); |
1194 | /* Only on the original revision: IDE DMA can hang */ | |
44c10138 | 1195 | if (pdev->revision == 0x00) |
c621b140 AC |
1196 | no_piix_dma = 1; |
1197 | /* On all revisions below 5 PXB bus lock must be disabled for IDE */ | |
44c10138 | 1198 | else if (cfg & (1<<14) && pdev->revision < 5) |
c621b140 AC |
1199 | no_piix_dma = 2; |
1200 | } | |
31a34fe7 | 1201 | if (no_piix_dma) |
c621b140 | 1202 | dev_printk(KERN_WARNING, &ata_dev->dev, "450NX errata present, disabling IDE DMA.\n"); |
31a34fe7 | 1203 | if (no_piix_dma == 2) |
c621b140 AC |
1204 | dev_printk(KERN_WARNING, &ata_dev->dev, "A BIOS update may resolve this.\n"); |
1205 | return no_piix_dma; | |
2e9edbf8 | 1206 | } |
c621b140 | 1207 | |
8b09f0da | 1208 | static void __devinit piix_init_pcs(struct ata_host *host, |
ea35d29e JG |
1209 | const struct piix_map_db *map_db) |
1210 | { | |
8b09f0da | 1211 | struct pci_dev *pdev = to_pci_dev(host->dev); |
ea35d29e JG |
1212 | u16 pcs, new_pcs; |
1213 | ||
1214 | pci_read_config_word(pdev, ICH5_PCS, &pcs); | |
1215 | ||
1216 | new_pcs = pcs | map_db->port_enable; | |
1217 | ||
1218 | if (new_pcs != pcs) { | |
1219 | DPRINTK("updating PCS from 0x%x to 0x%x\n", pcs, new_pcs); | |
1220 | pci_write_config_word(pdev, ICH5_PCS, new_pcs); | |
1221 | msleep(150); | |
1222 | } | |
1223 | } | |
1224 | ||
8b09f0da TH |
1225 | static const int *__devinit piix_init_sata_map(struct pci_dev *pdev, |
1226 | struct ata_port_info *pinfo, | |
1227 | const struct piix_map_db *map_db) | |
d33f58b8 | 1228 | { |
b4482a4b | 1229 | const int *map; |
d33f58b8 TH |
1230 | int i, invalid_map = 0; |
1231 | u8 map_value; | |
1232 | ||
1233 | pci_read_config_byte(pdev, ICH5_PMR, &map_value); | |
1234 | ||
1235 | map = map_db->map[map_value & map_db->mask]; | |
1236 | ||
1237 | dev_printk(KERN_INFO, &pdev->dev, "MAP ["); | |
1238 | for (i = 0; i < 4; i++) { | |
1239 | switch (map[i]) { | |
1240 | case RV: | |
1241 | invalid_map = 1; | |
1242 | printk(" XX"); | |
1243 | break; | |
1244 | ||
1245 | case NA: | |
1246 | printk(" --"); | |
1247 | break; | |
1248 | ||
1249 | case IDE: | |
1250 | WARN_ON((i & 1) || map[i + 1] != IDE); | |
669a5db4 | 1251 | pinfo[i / 2] = piix_port_info[ich_pata_100]; |
d33f58b8 TH |
1252 | i++; |
1253 | printk(" IDE IDE"); | |
1254 | break; | |
1255 | ||
1256 | default: | |
1257 | printk(" P%d", map[i]); | |
1258 | if (i & 1) | |
cca3974e | 1259 | pinfo[i / 2].flags |= ATA_FLAG_SLAVE_POSS; |
d33f58b8 TH |
1260 | break; |
1261 | } | |
1262 | } | |
1263 | printk(" ]\n"); | |
1264 | ||
1265 | if (invalid_map) | |
1266 | dev_printk(KERN_ERR, &pdev->dev, | |
1267 | "invalid MAP value %u\n", map_value); | |
1268 | ||
8b09f0da | 1269 | return map; |
d33f58b8 TH |
1270 | } |
1271 | ||
be77e43a | 1272 | static int __devinit piix_init_sidpr(struct ata_host *host) |
c7290724 TH |
1273 | { |
1274 | struct pci_dev *pdev = to_pci_dev(host->dev); | |
1275 | struct piix_host_priv *hpriv = host->private_data; | |
be77e43a | 1276 | struct ata_link *link0 = &host->ports[0]->link; |
cb6716c8 | 1277 | u32 scontrol; |
be77e43a | 1278 | int i, rc; |
c7290724 TH |
1279 | |
1280 | /* check for availability */ | |
1281 | for (i = 0; i < 4; i++) | |
1282 | if (hpriv->map[i] == IDE) | |
be77e43a | 1283 | return 0; |
c7290724 TH |
1284 | |
1285 | if (!(host->ports[0]->flags & PIIX_FLAG_SIDPR)) | |
be77e43a | 1286 | return 0; |
c7290724 TH |
1287 | |
1288 | if (pci_resource_start(pdev, PIIX_SIDPR_BAR) == 0 || | |
1289 | pci_resource_len(pdev, PIIX_SIDPR_BAR) != PIIX_SIDPR_LEN) | |
be77e43a | 1290 | return 0; |
c7290724 TH |
1291 | |
1292 | if (pcim_iomap_regions(pdev, 1 << PIIX_SIDPR_BAR, DRV_NAME)) | |
be77e43a | 1293 | return 0; |
c7290724 TH |
1294 | |
1295 | hpriv->sidpr = pcim_iomap_table(pdev)[PIIX_SIDPR_BAR]; | |
cb6716c8 TH |
1296 | |
1297 | /* SCR access via SIDPR doesn't work on some configurations. | |
1298 | * Give it a test drive by inhibiting power save modes which | |
1299 | * we'll do anyway. | |
1300 | */ | |
be77e43a | 1301 | piix_sidpr_scr_read(link0, SCR_CONTROL, &scontrol); |
cb6716c8 TH |
1302 | |
1303 | /* if IPM is already 3, SCR access is probably working. Don't | |
1304 | * un-inhibit power save modes as BIOS might have inhibited | |
1305 | * them for a reason. | |
1306 | */ | |
1307 | if ((scontrol & 0xf00) != 0x300) { | |
1308 | scontrol |= 0x300; | |
be77e43a TH |
1309 | piix_sidpr_scr_write(link0, SCR_CONTROL, scontrol); |
1310 | piix_sidpr_scr_read(link0, SCR_CONTROL, &scontrol); | |
cb6716c8 TH |
1311 | |
1312 | if ((scontrol & 0xf00) != 0x300) { | |
1313 | dev_printk(KERN_INFO, host->dev, "SCR access via " | |
1314 | "SIDPR is available but doesn't work\n"); | |
be77e43a | 1315 | return 0; |
cb6716c8 TH |
1316 | } |
1317 | } | |
1318 | ||
be77e43a TH |
1319 | /* okay, SCRs available, set ops and ask libata for slave_link */ |
1320 | for (i = 0; i < 2; i++) { | |
1321 | struct ata_port *ap = host->ports[i]; | |
1322 | ||
1323 | ap->ops = &piix_sidpr_sata_ops; | |
1324 | ||
1325 | if (ap->flags & ATA_FLAG_SLAVE_POSS) { | |
1326 | rc = ata_slave_link_init(ap); | |
1327 | if (rc) | |
1328 | return rc; | |
1329 | } | |
1330 | } | |
1331 | ||
1332 | return 0; | |
c7290724 TH |
1333 | } |
1334 | ||
43a98f05 TH |
1335 | static void piix_iocfg_bit18_quirk(struct pci_dev *pdev) |
1336 | { | |
1855256c | 1337 | static const struct dmi_system_id sysids[] = { |
43a98f05 TH |
1338 | { |
1339 | /* Clevo M570U sets IOCFG bit 18 if the cdrom | |
1340 | * isn't used to boot the system which | |
1341 | * disables the channel. | |
1342 | */ | |
1343 | .ident = "M570U", | |
1344 | .matches = { | |
1345 | DMI_MATCH(DMI_SYS_VENDOR, "Clevo Co."), | |
1346 | DMI_MATCH(DMI_PRODUCT_NAME, "M570U"), | |
1347 | }, | |
1348 | }, | |
7d051548 JG |
1349 | |
1350 | { } /* terminate list */ | |
43a98f05 TH |
1351 | }; |
1352 | u32 iocfg; | |
1353 | ||
1354 | if (!dmi_check_system(sysids)) | |
1355 | return; | |
1356 | ||
1357 | /* The datasheet says that bit 18 is NOOP but certain systems | |
1358 | * seem to use it to disable a channel. Clear the bit on the | |
1359 | * affected systems. | |
1360 | */ | |
1361 | pci_read_config_dword(pdev, PIIX_IOCFG, &iocfg); | |
1362 | if (iocfg & (1 << 18)) { | |
1363 | dev_printk(KERN_INFO, &pdev->dev, | |
1364 | "applying IOCFG bit18 quirk\n"); | |
1365 | iocfg &= ~(1 << 18); | |
1366 | pci_write_config_dword(pdev, PIIX_IOCFG, iocfg); | |
1367 | } | |
1368 | } | |
1369 | ||
1da177e4 LT |
1370 | /** |
1371 | * piix_init_one - Register PIIX ATA PCI device with kernel services | |
1372 | * @pdev: PCI device to register | |
1373 | * @ent: Entry in piix_pci_tbl matching with @pdev | |
1374 | * | |
1375 | * Called from kernel PCI layer. We probe for combined mode (sigh), | |
1376 | * and then hand over control to libata, for it to do the rest. | |
1377 | * | |
1378 | * LOCKING: | |
1379 | * Inherited from PCI layer (may sleep). | |
1380 | * | |
1381 | * RETURNS: | |
1382 | * Zero on success, or -ERRNO value. | |
1383 | */ | |
1384 | ||
bc5468f5 AB |
1385 | static int __devinit piix_init_one(struct pci_dev *pdev, |
1386 | const struct pci_device_id *ent) | |
1da177e4 LT |
1387 | { |
1388 | static int printed_version; | |
24dc5f33 | 1389 | struct device *dev = &pdev->dev; |
d33f58b8 | 1390 | struct ata_port_info port_info[2]; |
1626aeb8 | 1391 | const struct ata_port_info *ppi[] = { &port_info[0], &port_info[1] }; |
cca3974e | 1392 | unsigned long port_flags; |
8b09f0da TH |
1393 | struct ata_host *host; |
1394 | struct piix_host_priv *hpriv; | |
1395 | int rc; | |
1da177e4 LT |
1396 | |
1397 | if (!printed_version++) | |
6248e647 JG |
1398 | dev_printk(KERN_DEBUG, &pdev->dev, |
1399 | "version " DRV_VERSION "\n"); | |
1da177e4 LT |
1400 | |
1401 | /* no hotplugging support (FIXME) */ | |
1402 | if (!in_module_init) | |
1403 | return -ENODEV; | |
1404 | ||
8b09f0da TH |
1405 | port_info[0] = piix_port_info[ent->driver_data]; |
1406 | port_info[1] = piix_port_info[ent->driver_data]; | |
1407 | ||
1408 | port_flags = port_info[0].flags; | |
1409 | ||
1410 | /* enable device and prepare host */ | |
1411 | rc = pcim_enable_device(pdev); | |
1412 | if (rc) | |
1413 | return rc; | |
1414 | ||
5016d7d2 TH |
1415 | /* ICH6R may be driven by either ata_piix or ahci driver |
1416 | * regardless of BIOS configuration. Make sure AHCI mode is | |
1417 | * off. | |
1418 | */ | |
1419 | if (pdev->vendor == PCI_VENDOR_ID_INTEL && pdev->device == 0x2652) { | |
da3ceb22 | 1420 | rc = piix_disable_ahci(pdev); |
5016d7d2 TH |
1421 | if (rc) |
1422 | return rc; | |
1423 | } | |
1424 | ||
8b09f0da | 1425 | /* SATA map init can change port_info, do it before prepping host */ |
24dc5f33 | 1426 | hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL); |
d96715c1 TH |
1427 | if (!hpriv) |
1428 | return -ENOMEM; | |
1429 | ||
8b09f0da TH |
1430 | if (port_flags & ATA_FLAG_SATA) |
1431 | hpriv->map = piix_init_sata_map(pdev, port_info, | |
1432 | piix_map_db_table[ent->driver_data]); | |
1da177e4 | 1433 | |
9363c382 | 1434 | rc = ata_pci_sff_prepare_host(pdev, ppi, &host); |
8b09f0da TH |
1435 | if (rc) |
1436 | return rc; | |
1437 | host->private_data = hpriv; | |
ff0fc146 | 1438 | |
8b09f0da | 1439 | /* initialize controller */ |
c7290724 | 1440 | if (port_flags & ATA_FLAG_SATA) { |
8b09f0da | 1441 | piix_init_pcs(host, piix_map_db_table[ent->driver_data]); |
be77e43a TH |
1442 | rc = piix_init_sidpr(host); |
1443 | if (rc) | |
1444 | return rc; | |
c7290724 | 1445 | } |
1da177e4 | 1446 | |
43a98f05 TH |
1447 | /* apply IOCFG bit18 quirk */ |
1448 | piix_iocfg_bit18_quirk(pdev); | |
1449 | ||
1da177e4 LT |
1450 | /* On ICH5, some BIOSen disable the interrupt using the |
1451 | * PCI_COMMAND_INTX_DISABLE bit added in PCI 2.3. | |
1452 | * On ICH6, this bit has the same effect, but only when | |
1453 | * MSI is disabled (and it is disabled, as we don't use | |
1454 | * message-signalled interrupts currently). | |
1455 | */ | |
cca3974e | 1456 | if (port_flags & PIIX_FLAG_CHECKINTR) |
a04ce0ff | 1457 | pci_intx(pdev, 1); |
1da177e4 | 1458 | |
c621b140 AC |
1459 | if (piix_check_450nx_errata(pdev)) { |
1460 | /* This writes into the master table but it does not | |
1461 | really matter for this errata as we will apply it to | |
1462 | all the PIIX devices on the board */ | |
8b09f0da TH |
1463 | host->ports[0]->mwdma_mask = 0; |
1464 | host->ports[0]->udma_mask = 0; | |
1465 | host->ports[1]->mwdma_mask = 0; | |
1466 | host->ports[1]->udma_mask = 0; | |
c621b140 | 1467 | } |
8b09f0da TH |
1468 | |
1469 | pci_set_master(pdev); | |
9363c382 | 1470 | return ata_pci_sff_activate_host(host, ata_sff_interrupt, &piix_sht); |
1da177e4 LT |
1471 | } |
1472 | ||
1da177e4 LT |
1473 | static int __init piix_init(void) |
1474 | { | |
1475 | int rc; | |
1476 | ||
b7887196 PR |
1477 | DPRINTK("pci_register_driver\n"); |
1478 | rc = pci_register_driver(&piix_pci_driver); | |
1da177e4 LT |
1479 | if (rc) |
1480 | return rc; | |
1481 | ||
1482 | in_module_init = 0; | |
1483 | ||
1484 | DPRINTK("done\n"); | |
1485 | return 0; | |
1486 | } | |
1487 | ||
1da177e4 LT |
1488 | static void __exit piix_exit(void) |
1489 | { | |
1490 | pci_unregister_driver(&piix_pci_driver); | |
1491 | } | |
1492 | ||
1493 | module_init(piix_init); | |
1494 | module_exit(piix_exit); |