pata_amd.c 19 KB

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  1. /*
  2. * pata_amd.c - AMD PATA for new ATA layer
  3. * (C) 2005-2006 Red Hat Inc
  4. * Alan Cox <alan@redhat.com>
  5. *
  6. * Based on pata-sil680. Errata information is taken from data sheets
  7. * and the amd74xx.c driver by Vojtech Pavlik. Nvidia SATA devices are
  8. * claimed by sata-nv.c.
  9. *
  10. * TODO:
  11. * Variable system clock when/if it makes sense
  12. * Power management on ports
  13. *
  14. *
  15. * Documentation publically available.
  16. */
  17. #include <linux/kernel.h>
  18. #include <linux/module.h>
  19. #include <linux/pci.h>
  20. #include <linux/init.h>
  21. #include <linux/blkdev.h>
  22. #include <linux/delay.h>
  23. #include <scsi/scsi_host.h>
  24. #include <linux/libata.h>
  25. #define DRV_NAME "pata_amd"
  26. #define DRV_VERSION "0.3.9"
  27. /**
  28. * timing_setup - shared timing computation and load
  29. * @ap: ATA port being set up
  30. * @adev: drive being configured
  31. * @offset: port offset
  32. * @speed: target speed
  33. * @clock: clock multiplier (number of times 33MHz for this part)
  34. *
  35. * Perform the actual timing set up for Nvidia or AMD PATA devices.
  36. * The actual devices vary so they all call into this helper function
  37. * providing the clock multipler and offset (because AMD and Nvidia put
  38. * the ports at different locations).
  39. */
  40. static void timing_setup(struct ata_port *ap, struct ata_device *adev, int offset, int speed, int clock)
  41. {
  42. static const unsigned char amd_cyc2udma[] = {
  43. 6, 6, 5, 4, 0, 1, 1, 2, 2, 3, 3, 3, 3, 3, 3, 7
  44. };
  45. struct pci_dev *pdev = to_pci_dev(ap->host->dev);
  46. struct ata_device *peer = ata_dev_pair(adev);
  47. int dn = ap->port_no * 2 + adev->devno;
  48. struct ata_timing at, apeer;
  49. int T, UT;
  50. const int amd_clock = 33333; /* KHz. */
  51. u8 t;
  52. T = 1000000000 / amd_clock;
  53. UT = T / min_t(int, max_t(int, clock, 1), 2);
  54. if (ata_timing_compute(adev, speed, &at, T, UT) < 0) {
  55. dev_printk(KERN_ERR, &pdev->dev, "unknown mode %d.\n", speed);
  56. return;
  57. }
  58. if (peer) {
  59. /* This may be over conservative */
  60. if (peer->dma_mode) {
  61. ata_timing_compute(peer, peer->dma_mode, &apeer, T, UT);
  62. ata_timing_merge(&apeer, &at, &at, ATA_TIMING_8BIT);
  63. }
  64. ata_timing_compute(peer, peer->pio_mode, &apeer, T, UT);
  65. ata_timing_merge(&apeer, &at, &at, ATA_TIMING_8BIT);
  66. }
  67. if (speed == XFER_UDMA_5 && amd_clock <= 33333) at.udma = 1;
  68. if (speed == XFER_UDMA_6 && amd_clock <= 33333) at.udma = 15;
  69. /*
  70. * Now do the setup work
  71. */
  72. /* Configure the address set up timing */
  73. pci_read_config_byte(pdev, offset + 0x0C, &t);
  74. t = (t & ~(3 << ((3 - dn) << 1))) | ((FIT(at.setup, 1, 4) - 1) << ((3 - dn) << 1));
  75. pci_write_config_byte(pdev, offset + 0x0C , t);
  76. /* Configure the 8bit I/O timing */
  77. pci_write_config_byte(pdev, offset + 0x0E + (1 - (dn >> 1)),
  78. ((FIT(at.act8b, 1, 16) - 1) << 4) | (FIT(at.rec8b, 1, 16) - 1));
  79. /* Drive timing */
  80. pci_write_config_byte(pdev, offset + 0x08 + (3 - dn),
  81. ((FIT(at.active, 1, 16) - 1) << 4) | (FIT(at.recover, 1, 16) - 1));
  82. switch (clock) {
  83. case 1:
  84. t = at.udma ? (0xc0 | (FIT(at.udma, 2, 5) - 2)) : 0x03;
  85. break;
  86. case 2:
  87. t = at.udma ? (0xc0 | amd_cyc2udma[FIT(at.udma, 2, 10)]) : 0x03;
  88. break;
  89. case 3:
  90. t = at.udma ? (0xc0 | amd_cyc2udma[FIT(at.udma, 1, 10)]) : 0x03;
  91. break;
  92. case 4:
  93. t = at.udma ? (0xc0 | amd_cyc2udma[FIT(at.udma, 1, 15)]) : 0x03;
  94. break;
  95. default:
  96. return;
  97. }
  98. /* UDMA timing */
  99. pci_write_config_byte(pdev, offset + 0x10 + (3 - dn), t);
  100. }
  101. /**
  102. * amd_pre_reset - perform reset handling
  103. * @link: ATA link
  104. * @deadline: deadline jiffies for the operation
  105. *
  106. * Reset sequence checking enable bits to see which ports are
  107. * active.
  108. */
  109. static int amd_pre_reset(struct ata_link *link, unsigned long deadline)
  110. {
  111. static const struct pci_bits amd_enable_bits[] = {
  112. { 0x40, 1, 0x02, 0x02 },
  113. { 0x40, 1, 0x01, 0x01 }
  114. };
  115. struct ata_port *ap = link->ap;
  116. struct pci_dev *pdev = to_pci_dev(ap->host->dev);
  117. if (!pci_test_config_bits(pdev, &amd_enable_bits[ap->port_no]))
  118. return -ENOENT;
  119. return ata_std_prereset(link, deadline);
  120. }
  121. static void amd_error_handler(struct ata_port *ap)
  122. {
  123. return ata_bmdma_drive_eh(ap, amd_pre_reset,
  124. ata_std_softreset, NULL,
  125. ata_std_postreset);
  126. }
  127. static int amd_cable_detect(struct ata_port *ap)
  128. {
  129. static const u32 bitmask[2] = {0x03, 0x0C};
  130. struct pci_dev *pdev = to_pci_dev(ap->host->dev);
  131. u8 ata66;
  132. pci_read_config_byte(pdev, 0x42, &ata66);
  133. if (ata66 & bitmask[ap->port_no])
  134. return ATA_CBL_PATA80;
  135. return ATA_CBL_PATA40;
  136. }
  137. /**
  138. * amd33_set_piomode - set initial PIO mode data
  139. * @ap: ATA interface
  140. * @adev: ATA device
  141. *
  142. * Program the AMD registers for PIO mode.
  143. */
  144. static void amd33_set_piomode(struct ata_port *ap, struct ata_device *adev)
  145. {
  146. timing_setup(ap, adev, 0x40, adev->pio_mode, 1);
  147. }
  148. static void amd66_set_piomode(struct ata_port *ap, struct ata_device *adev)
  149. {
  150. timing_setup(ap, adev, 0x40, adev->pio_mode, 2);
  151. }
  152. static void amd100_set_piomode(struct ata_port *ap, struct ata_device *adev)
  153. {
  154. timing_setup(ap, adev, 0x40, adev->pio_mode, 3);
  155. }
  156. static void amd133_set_piomode(struct ata_port *ap, struct ata_device *adev)
  157. {
  158. timing_setup(ap, adev, 0x40, adev->pio_mode, 4);
  159. }
  160. /**
  161. * amd33_set_dmamode - set initial DMA mode data
  162. * @ap: ATA interface
  163. * @adev: ATA device
  164. *
  165. * Program the MWDMA/UDMA modes for the AMD and Nvidia
  166. * chipset.
  167. */
  168. static void amd33_set_dmamode(struct ata_port *ap, struct ata_device *adev)
  169. {
  170. timing_setup(ap, adev, 0x40, adev->dma_mode, 1);
  171. }
  172. static void amd66_set_dmamode(struct ata_port *ap, struct ata_device *adev)
  173. {
  174. timing_setup(ap, adev, 0x40, adev->dma_mode, 2);
  175. }
  176. static void amd100_set_dmamode(struct ata_port *ap, struct ata_device *adev)
  177. {
  178. timing_setup(ap, adev, 0x40, adev->dma_mode, 3);
  179. }
  180. static void amd133_set_dmamode(struct ata_port *ap, struct ata_device *adev)
  181. {
  182. timing_setup(ap, adev, 0x40, adev->dma_mode, 4);
  183. }
  184. /**
  185. * nv_probe_init - cable detection
  186. * @lin: ATA link
  187. *
  188. * Perform cable detection. The BIOS stores this in PCI config
  189. * space for us.
  190. */
  191. static int nv_pre_reset(struct ata_link *link, unsigned long deadline)
  192. {
  193. static const struct pci_bits nv_enable_bits[] = {
  194. { 0x50, 1, 0x02, 0x02 },
  195. { 0x50, 1, 0x01, 0x01 }
  196. };
  197. struct ata_port *ap = link->ap;
  198. struct pci_dev *pdev = to_pci_dev(ap->host->dev);
  199. if (!pci_test_config_bits(pdev, &nv_enable_bits[ap->port_no]))
  200. return -ENOENT;
  201. return ata_std_prereset(link, deadline);
  202. }
  203. static void nv_error_handler(struct ata_port *ap)
  204. {
  205. ata_bmdma_drive_eh(ap, nv_pre_reset,
  206. ata_std_softreset, NULL,
  207. ata_std_postreset);
  208. }
  209. static int nv_cable_detect(struct ata_port *ap)
  210. {
  211. static const u8 bitmask[2] = {0x03, 0x0C};
  212. struct pci_dev *pdev = to_pci_dev(ap->host->dev);
  213. u8 ata66;
  214. u16 udma;
  215. int cbl;
  216. pci_read_config_byte(pdev, 0x52, &ata66);
  217. if (ata66 & bitmask[ap->port_no])
  218. cbl = ATA_CBL_PATA80;
  219. else
  220. cbl = ATA_CBL_PATA40;
  221. /* We now have to double check because the Nvidia boxes BIOS
  222. doesn't always set the cable bits but does set mode bits */
  223. pci_read_config_word(pdev, 0x62 - 2 * ap->port_no, &udma);
  224. if ((udma & 0xC4) == 0xC4 || (udma & 0xC400) == 0xC400)
  225. cbl = ATA_CBL_PATA80;
  226. return cbl;
  227. }
  228. /**
  229. * nv100_set_piomode - set initial PIO mode data
  230. * @ap: ATA interface
  231. * @adev: ATA device
  232. *
  233. * Program the AMD registers for PIO mode.
  234. */
  235. static void nv100_set_piomode(struct ata_port *ap, struct ata_device *adev)
  236. {
  237. timing_setup(ap, adev, 0x50, adev->pio_mode, 3);
  238. }
  239. static void nv133_set_piomode(struct ata_port *ap, struct ata_device *adev)
  240. {
  241. timing_setup(ap, adev, 0x50, adev->pio_mode, 4);
  242. }
  243. /**
  244. * nv100_set_dmamode - set initial DMA mode data
  245. * @ap: ATA interface
  246. * @adev: ATA device
  247. *
  248. * Program the MWDMA/UDMA modes for the AMD and Nvidia
  249. * chipset.
  250. */
  251. static void nv100_set_dmamode(struct ata_port *ap, struct ata_device *adev)
  252. {
  253. timing_setup(ap, adev, 0x50, adev->dma_mode, 3);
  254. }
  255. static void nv133_set_dmamode(struct ata_port *ap, struct ata_device *adev)
  256. {
  257. timing_setup(ap, adev, 0x50, adev->dma_mode, 4);
  258. }
  259. static struct scsi_host_template amd_sht = {
  260. .module = THIS_MODULE,
  261. .name = DRV_NAME,
  262. .ioctl = ata_scsi_ioctl,
  263. .queuecommand = ata_scsi_queuecmd,
  264. .can_queue = ATA_DEF_QUEUE,
  265. .this_id = ATA_SHT_THIS_ID,
  266. .sg_tablesize = LIBATA_MAX_PRD,
  267. .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
  268. .emulated = ATA_SHT_EMULATED,
  269. .use_clustering = ATA_SHT_USE_CLUSTERING,
  270. .proc_name = DRV_NAME,
  271. .dma_boundary = ATA_DMA_BOUNDARY,
  272. .slave_configure = ata_scsi_slave_config,
  273. .slave_destroy = ata_scsi_slave_destroy,
  274. .bios_param = ata_std_bios_param,
  275. };
  276. static struct ata_port_operations amd33_port_ops = {
  277. .port_disable = ata_port_disable,
  278. .set_piomode = amd33_set_piomode,
  279. .set_dmamode = amd33_set_dmamode,
  280. .mode_filter = ata_pci_default_filter,
  281. .tf_load = ata_tf_load,
  282. .tf_read = ata_tf_read,
  283. .check_status = ata_check_status,
  284. .exec_command = ata_exec_command,
  285. .dev_select = ata_std_dev_select,
  286. .freeze = ata_bmdma_freeze,
  287. .thaw = ata_bmdma_thaw,
  288. .error_handler = amd_error_handler,
  289. .post_internal_cmd = ata_bmdma_post_internal_cmd,
  290. .cable_detect = ata_cable_40wire,
  291. .bmdma_setup = ata_bmdma_setup,
  292. .bmdma_start = ata_bmdma_start,
  293. .bmdma_stop = ata_bmdma_stop,
  294. .bmdma_status = ata_bmdma_status,
  295. .qc_prep = ata_qc_prep,
  296. .qc_issue = ata_qc_issue_prot,
  297. .data_xfer = ata_data_xfer,
  298. .irq_handler = ata_interrupt,
  299. .irq_clear = ata_bmdma_irq_clear,
  300. .irq_on = ata_irq_on,
  301. .port_start = ata_port_start,
  302. };
  303. static struct ata_port_operations amd66_port_ops = {
  304. .port_disable = ata_port_disable,
  305. .set_piomode = amd66_set_piomode,
  306. .set_dmamode = amd66_set_dmamode,
  307. .mode_filter = ata_pci_default_filter,
  308. .tf_load = ata_tf_load,
  309. .tf_read = ata_tf_read,
  310. .check_status = ata_check_status,
  311. .exec_command = ata_exec_command,
  312. .dev_select = ata_std_dev_select,
  313. .freeze = ata_bmdma_freeze,
  314. .thaw = ata_bmdma_thaw,
  315. .error_handler = amd_error_handler,
  316. .post_internal_cmd = ata_bmdma_post_internal_cmd,
  317. .cable_detect = ata_cable_unknown,
  318. .bmdma_setup = ata_bmdma_setup,
  319. .bmdma_start = ata_bmdma_start,
  320. .bmdma_stop = ata_bmdma_stop,
  321. .bmdma_status = ata_bmdma_status,
  322. .qc_prep = ata_qc_prep,
  323. .qc_issue = ata_qc_issue_prot,
  324. .data_xfer = ata_data_xfer,
  325. .irq_handler = ata_interrupt,
  326. .irq_clear = ata_bmdma_irq_clear,
  327. .irq_on = ata_irq_on,
  328. .port_start = ata_port_start,
  329. };
  330. static struct ata_port_operations amd100_port_ops = {
  331. .port_disable = ata_port_disable,
  332. .set_piomode = amd100_set_piomode,
  333. .set_dmamode = amd100_set_dmamode,
  334. .mode_filter = ata_pci_default_filter,
  335. .tf_load = ata_tf_load,
  336. .tf_read = ata_tf_read,
  337. .check_status = ata_check_status,
  338. .exec_command = ata_exec_command,
  339. .dev_select = ata_std_dev_select,
  340. .freeze = ata_bmdma_freeze,
  341. .thaw = ata_bmdma_thaw,
  342. .error_handler = amd_error_handler,
  343. .post_internal_cmd = ata_bmdma_post_internal_cmd,
  344. .cable_detect = ata_cable_unknown,
  345. .bmdma_setup = ata_bmdma_setup,
  346. .bmdma_start = ata_bmdma_start,
  347. .bmdma_stop = ata_bmdma_stop,
  348. .bmdma_status = ata_bmdma_status,
  349. .qc_prep = ata_qc_prep,
  350. .qc_issue = ata_qc_issue_prot,
  351. .data_xfer = ata_data_xfer,
  352. .irq_handler = ata_interrupt,
  353. .irq_clear = ata_bmdma_irq_clear,
  354. .irq_on = ata_irq_on,
  355. .port_start = ata_port_start,
  356. };
  357. static struct ata_port_operations amd133_port_ops = {
  358. .port_disable = ata_port_disable,
  359. .set_piomode = amd133_set_piomode,
  360. .set_dmamode = amd133_set_dmamode,
  361. .mode_filter = ata_pci_default_filter,
  362. .tf_load = ata_tf_load,
  363. .tf_read = ata_tf_read,
  364. .check_status = ata_check_status,
  365. .exec_command = ata_exec_command,
  366. .dev_select = ata_std_dev_select,
  367. .freeze = ata_bmdma_freeze,
  368. .thaw = ata_bmdma_thaw,
  369. .error_handler = amd_error_handler,
  370. .post_internal_cmd = ata_bmdma_post_internal_cmd,
  371. .cable_detect = amd_cable_detect,
  372. .bmdma_setup = ata_bmdma_setup,
  373. .bmdma_start = ata_bmdma_start,
  374. .bmdma_stop = ata_bmdma_stop,
  375. .bmdma_status = ata_bmdma_status,
  376. .qc_prep = ata_qc_prep,
  377. .qc_issue = ata_qc_issue_prot,
  378. .data_xfer = ata_data_xfer,
  379. .irq_handler = ata_interrupt,
  380. .irq_clear = ata_bmdma_irq_clear,
  381. .irq_on = ata_irq_on,
  382. .port_start = ata_port_start,
  383. };
  384. static struct ata_port_operations nv100_port_ops = {
  385. .port_disable = ata_port_disable,
  386. .set_piomode = nv100_set_piomode,
  387. .set_dmamode = nv100_set_dmamode,
  388. .mode_filter = ata_pci_default_filter,
  389. .tf_load = ata_tf_load,
  390. .tf_read = ata_tf_read,
  391. .check_status = ata_check_status,
  392. .exec_command = ata_exec_command,
  393. .dev_select = ata_std_dev_select,
  394. .freeze = ata_bmdma_freeze,
  395. .thaw = ata_bmdma_thaw,
  396. .error_handler = nv_error_handler,
  397. .post_internal_cmd = ata_bmdma_post_internal_cmd,
  398. .cable_detect = nv_cable_detect,
  399. .bmdma_setup = ata_bmdma_setup,
  400. .bmdma_start = ata_bmdma_start,
  401. .bmdma_stop = ata_bmdma_stop,
  402. .bmdma_status = ata_bmdma_status,
  403. .qc_prep = ata_qc_prep,
  404. .qc_issue = ata_qc_issue_prot,
  405. .data_xfer = ata_data_xfer,
  406. .irq_handler = ata_interrupt,
  407. .irq_clear = ata_bmdma_irq_clear,
  408. .irq_on = ata_irq_on,
  409. .port_start = ata_port_start,
  410. };
  411. static struct ata_port_operations nv133_port_ops = {
  412. .port_disable = ata_port_disable,
  413. .set_piomode = nv133_set_piomode,
  414. .set_dmamode = nv133_set_dmamode,
  415. .mode_filter = ata_pci_default_filter,
  416. .tf_load = ata_tf_load,
  417. .tf_read = ata_tf_read,
  418. .check_status = ata_check_status,
  419. .exec_command = ata_exec_command,
  420. .dev_select = ata_std_dev_select,
  421. .freeze = ata_bmdma_freeze,
  422. .thaw = ata_bmdma_thaw,
  423. .error_handler = nv_error_handler,
  424. .post_internal_cmd = ata_bmdma_post_internal_cmd,
  425. .cable_detect = nv_cable_detect,
  426. .bmdma_setup = ata_bmdma_setup,
  427. .bmdma_start = ata_bmdma_start,
  428. .bmdma_stop = ata_bmdma_stop,
  429. .bmdma_status = ata_bmdma_status,
  430. .qc_prep = ata_qc_prep,
  431. .qc_issue = ata_qc_issue_prot,
  432. .data_xfer = ata_data_xfer,
  433. .irq_handler = ata_interrupt,
  434. .irq_clear = ata_bmdma_irq_clear,
  435. .irq_on = ata_irq_on,
  436. .port_start = ata_port_start,
  437. };
  438. static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
  439. {
  440. static const struct ata_port_info info[10] = {
  441. { /* 0: AMD 7401 */
  442. .sht = &amd_sht,
  443. .flags = ATA_FLAG_SLAVE_POSS,
  444. .pio_mask = 0x1f,
  445. .mwdma_mask = 0x07, /* No SWDMA */
  446. .udma_mask = 0x07, /* UDMA 33 */
  447. .port_ops = &amd33_port_ops
  448. },
  449. { /* 1: Early AMD7409 - no swdma */
  450. .sht = &amd_sht,
  451. .flags = ATA_FLAG_SLAVE_POSS,
  452. .pio_mask = 0x1f,
  453. .mwdma_mask = 0x07,
  454. .udma_mask = ATA_UDMA4, /* UDMA 66 */
  455. .port_ops = &amd66_port_ops
  456. },
  457. { /* 2: AMD 7409, no swdma errata */
  458. .sht = &amd_sht,
  459. .flags = ATA_FLAG_SLAVE_POSS,
  460. .pio_mask = 0x1f,
  461. .mwdma_mask = 0x07,
  462. .udma_mask = ATA_UDMA4, /* UDMA 66 */
  463. .port_ops = &amd66_port_ops
  464. },
  465. { /* 3: AMD 7411 */
  466. .sht = &amd_sht,
  467. .flags = ATA_FLAG_SLAVE_POSS,
  468. .pio_mask = 0x1f,
  469. .mwdma_mask = 0x07,
  470. .udma_mask = ATA_UDMA5, /* UDMA 100 */
  471. .port_ops = &amd100_port_ops
  472. },
  473. { /* 4: AMD 7441 */
  474. .sht = &amd_sht,
  475. .flags = ATA_FLAG_SLAVE_POSS,
  476. .pio_mask = 0x1f,
  477. .mwdma_mask = 0x07,
  478. .udma_mask = ATA_UDMA5, /* UDMA 100 */
  479. .port_ops = &amd100_port_ops
  480. },
  481. { /* 5: AMD 8111*/
  482. .sht = &amd_sht,
  483. .flags = ATA_FLAG_SLAVE_POSS,
  484. .pio_mask = 0x1f,
  485. .mwdma_mask = 0x07,
  486. .udma_mask = ATA_UDMA6, /* UDMA 133, no swdma */
  487. .port_ops = &amd133_port_ops
  488. },
  489. { /* 6: AMD 8111 UDMA 100 (Serenade) */
  490. .sht = &amd_sht,
  491. .flags = ATA_FLAG_SLAVE_POSS,
  492. .pio_mask = 0x1f,
  493. .mwdma_mask = 0x07,
  494. .udma_mask = ATA_UDMA5, /* UDMA 100, no swdma */
  495. .port_ops = &amd133_port_ops
  496. },
  497. { /* 7: Nvidia Nforce */
  498. .sht = &amd_sht,
  499. .flags = ATA_FLAG_SLAVE_POSS,
  500. .pio_mask = 0x1f,
  501. .mwdma_mask = 0x07,
  502. .udma_mask = ATA_UDMA5, /* UDMA 100 */
  503. .port_ops = &nv100_port_ops
  504. },
  505. { /* 8: Nvidia Nforce2 and later */
  506. .sht = &amd_sht,
  507. .flags = ATA_FLAG_SLAVE_POSS,
  508. .pio_mask = 0x1f,
  509. .mwdma_mask = 0x07,
  510. .udma_mask = ATA_UDMA6, /* UDMA 133, no swdma */
  511. .port_ops = &nv133_port_ops
  512. },
  513. { /* 9: AMD CS5536 (Geode companion) */
  514. .sht = &amd_sht,
  515. .flags = ATA_FLAG_SLAVE_POSS,
  516. .pio_mask = 0x1f,
  517. .mwdma_mask = 0x07,
  518. .udma_mask = ATA_UDMA5, /* UDMA 100 */
  519. .port_ops = &amd100_port_ops
  520. }
  521. };
  522. const struct ata_port_info *ppi[] = { NULL, NULL };
  523. static int printed_version;
  524. int type = id->driver_data;
  525. u8 fifo;
  526. if (!printed_version++)
  527. dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
  528. pci_read_config_byte(pdev, 0x41, &fifo);
  529. /* Check for AMD7409 without swdma errata and if found adjust type */
  530. if (type == 1 && pdev->revision > 0x7)
  531. type = 2;
  532. /* Check for AMD7411 */
  533. if (type == 3)
  534. /* FIFO is broken */
  535. pci_write_config_byte(pdev, 0x41, fifo & 0x0F);
  536. else
  537. pci_write_config_byte(pdev, 0x41, fifo | 0xF0);
  538. /* Serenade ? */
  539. if (type == 5 && pdev->subsystem_vendor == PCI_VENDOR_ID_AMD &&
  540. pdev->subsystem_device == PCI_DEVICE_ID_AMD_SERENADE)
  541. type = 6; /* UDMA 100 only */
  542. if (type < 3)
  543. ata_pci_clear_simplex(pdev);
  544. /* And fire it up */
  545. ppi[0] = &info[type];
  546. return ata_pci_init_one(pdev, ppi);
  547. }
  548. #ifdef CONFIG_PM
  549. static int amd_reinit_one(struct pci_dev *pdev)
  550. {
  551. if (pdev->vendor == PCI_VENDOR_ID_AMD) {
  552. u8 fifo;
  553. pci_read_config_byte(pdev, 0x41, &fifo);
  554. if (pdev->device == PCI_DEVICE_ID_AMD_VIPER_7411)
  555. /* FIFO is broken */
  556. pci_write_config_byte(pdev, 0x41, fifo & 0x0F);
  557. else
  558. pci_write_config_byte(pdev, 0x41, fifo | 0xF0);
  559. if (pdev->device == PCI_DEVICE_ID_AMD_VIPER_7409 ||
  560. pdev->device == PCI_DEVICE_ID_AMD_COBRA_7401)
  561. ata_pci_clear_simplex(pdev);
  562. }
  563. return ata_pci_device_resume(pdev);
  564. }
  565. #endif
  566. static const struct pci_device_id amd[] = {
  567. { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_COBRA_7401), 0 },
  568. { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_VIPER_7409), 1 },
  569. { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_VIPER_7411), 3 },
  570. { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_OPUS_7441), 4 },
  571. { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_8111_IDE), 5 },
  572. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_IDE), 7 },
  573. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2_IDE), 8 },
  574. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2S_IDE), 8 },
  575. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3_IDE), 8 },
  576. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_IDE), 8 },
  577. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_IDE), 8 },
  578. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_IDE), 8 },
  579. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_IDE), 8 },
  580. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_IDE), 8 },
  581. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_IDE), 8 },
  582. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP65_IDE), 8 },
  583. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP67_IDE), 8 },
  584. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP73_IDE), 8 },
  585. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP77_IDE), 8 },
  586. { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_CS5536_IDE), 9 },
  587. { },
  588. };
  589. static struct pci_driver amd_pci_driver = {
  590. .name = DRV_NAME,
  591. .id_table = amd,
  592. .probe = amd_init_one,
  593. .remove = ata_pci_remove_one,
  594. #ifdef CONFIG_PM
  595. .suspend = ata_pci_device_suspend,
  596. .resume = amd_reinit_one,
  597. #endif
  598. };
  599. static int __init amd_init(void)
  600. {
  601. return pci_register_driver(&amd_pci_driver);
  602. }
  603. static void __exit amd_exit(void)
  604. {
  605. pci_unregister_driver(&amd_pci_driver);
  606. }
  607. MODULE_AUTHOR("Alan Cox");
  608. MODULE_DESCRIPTION("low-level driver for AMD PATA IDE");
  609. MODULE_LICENSE("GPL");
  610. MODULE_DEVICE_TABLE(pci, amd);
  611. MODULE_VERSION(DRV_VERSION);
  612. module_init(amd_init);
  613. module_exit(amd_exit);