pata_amd.c 18 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 "0.2.4"
  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_probe_init - cable detection
  103. * @ap: ATA port
  104. *
  105. * Perform cable detection. The BIOS stores this in PCI config
  106. * space for us.
  107. */
  108. static int amd_pre_reset(struct ata_port *ap)
  109. {
  110. static const u32 bitmask[2] = {0x03, 0xC0};
  111. static const struct pci_bits amd_enable_bits[] = {
  112. { 0x40, 1, 0x02, 0x02 },
  113. { 0x40, 1, 0x01, 0x01 }
  114. };
  115. struct pci_dev *pdev = to_pci_dev(ap->host->dev);
  116. u8 ata66;
  117. if (!pci_test_config_bits(pdev, &amd_enable_bits[ap->port_no]))
  118. return -ENOENT;
  119. pci_read_config_byte(pdev, 0x42, &ata66);
  120. if (ata66 & bitmask[ap->port_no])
  121. ap->cbl = ATA_CBL_PATA80;
  122. else
  123. ap->cbl = ATA_CBL_PATA40;
  124. return ata_std_prereset(ap);
  125. }
  126. static void amd_error_handler(struct ata_port *ap)
  127. {
  128. return ata_bmdma_drive_eh(ap, amd_pre_reset,
  129. ata_std_softreset, NULL,
  130. ata_std_postreset);
  131. }
  132. static int amd_early_pre_reset(struct ata_port *ap)
  133. {
  134. struct pci_dev *pdev = to_pci_dev(ap->host->dev);
  135. static struct pci_bits amd_enable_bits[] = {
  136. { 0x40, 1, 0x02, 0x02 },
  137. { 0x40, 1, 0x01, 0x01 }
  138. };
  139. if (!pci_test_config_bits(pdev, &amd_enable_bits[ap->port_no]))
  140. return -ENOENT;
  141. /* No host side cable detection */
  142. ap->cbl = ATA_CBL_PATA80;
  143. return ata_std_prereset(ap);
  144. }
  145. static void amd_early_error_handler(struct ata_port *ap)
  146. {
  147. ata_bmdma_drive_eh(ap, amd_early_pre_reset,
  148. ata_std_softreset, NULL,
  149. ata_std_postreset);
  150. }
  151. /**
  152. * amd33_set_piomode - set initial PIO mode data
  153. * @ap: ATA interface
  154. * @adev: ATA device
  155. *
  156. * Program the AMD registers for PIO mode.
  157. */
  158. static void amd33_set_piomode(struct ata_port *ap, struct ata_device *adev)
  159. {
  160. timing_setup(ap, adev, 0x40, adev->pio_mode, 1);
  161. }
  162. static void amd66_set_piomode(struct ata_port *ap, struct ata_device *adev)
  163. {
  164. timing_setup(ap, adev, 0x40, adev->pio_mode, 2);
  165. }
  166. static void amd100_set_piomode(struct ata_port *ap, struct ata_device *adev)
  167. {
  168. timing_setup(ap, adev, 0x40, adev->pio_mode, 3);
  169. }
  170. static void amd133_set_piomode(struct ata_port *ap, struct ata_device *adev)
  171. {
  172. timing_setup(ap, adev, 0x40, adev->pio_mode, 4);
  173. }
  174. /**
  175. * amd33_set_dmamode - set initial DMA mode data
  176. * @ap: ATA interface
  177. * @adev: ATA device
  178. *
  179. * Program the MWDMA/UDMA modes for the AMD and Nvidia
  180. * chipset.
  181. */
  182. static void amd33_set_dmamode(struct ata_port *ap, struct ata_device *adev)
  183. {
  184. timing_setup(ap, adev, 0x40, adev->dma_mode, 1);
  185. }
  186. static void amd66_set_dmamode(struct ata_port *ap, struct ata_device *adev)
  187. {
  188. timing_setup(ap, adev, 0x40, adev->dma_mode, 2);
  189. }
  190. static void amd100_set_dmamode(struct ata_port *ap, struct ata_device *adev)
  191. {
  192. timing_setup(ap, adev, 0x40, adev->dma_mode, 3);
  193. }
  194. static void amd133_set_dmamode(struct ata_port *ap, struct ata_device *adev)
  195. {
  196. timing_setup(ap, adev, 0x40, adev->dma_mode, 4);
  197. }
  198. /**
  199. * nv_probe_init - cable detection
  200. * @ap: ATA port
  201. *
  202. * Perform cable detection. The BIOS stores this in PCI config
  203. * space for us.
  204. */
  205. static int nv_pre_reset(struct ata_port *ap) {
  206. static const u8 bitmask[2] = {0x03, 0xC0};
  207. static const struct pci_bits nv_enable_bits[] = {
  208. { 0x50, 1, 0x02, 0x02 },
  209. { 0x50, 1, 0x01, 0x01 }
  210. };
  211. struct pci_dev *pdev = to_pci_dev(ap->host->dev);
  212. u8 ata66;
  213. u16 udma;
  214. if (!pci_test_config_bits(pdev, &nv_enable_bits[ap->port_no]))
  215. return -ENOENT;
  216. pci_read_config_byte(pdev, 0x52, &ata66);
  217. if (ata66 & bitmask[ap->port_no])
  218. ap->cbl = ATA_CBL_PATA80;
  219. else
  220. ap->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. ap->cbl = ATA_CBL_PATA80;
  226. return ata_std_prereset(ap);
  227. }
  228. static void nv_error_handler(struct ata_port *ap)
  229. {
  230. ata_bmdma_drive_eh(ap, nv_pre_reset,
  231. ata_std_softreset, NULL,
  232. ata_std_postreset);
  233. }
  234. /**
  235. * nv100_set_piomode - set initial PIO mode data
  236. * @ap: ATA interface
  237. * @adev: ATA device
  238. *
  239. * Program the AMD registers for PIO mode.
  240. */
  241. static void nv100_set_piomode(struct ata_port *ap, struct ata_device *adev)
  242. {
  243. timing_setup(ap, adev, 0x50, adev->pio_mode, 3);
  244. }
  245. static void nv133_set_piomode(struct ata_port *ap, struct ata_device *adev)
  246. {
  247. timing_setup(ap, adev, 0x50, adev->pio_mode, 4);
  248. }
  249. /**
  250. * nv100_set_dmamode - set initial DMA mode data
  251. * @ap: ATA interface
  252. * @adev: ATA device
  253. *
  254. * Program the MWDMA/UDMA modes for the AMD and Nvidia
  255. * chipset.
  256. */
  257. static void nv100_set_dmamode(struct ata_port *ap, struct ata_device *adev)
  258. {
  259. timing_setup(ap, adev, 0x50, adev->dma_mode, 3);
  260. }
  261. static void nv133_set_dmamode(struct ata_port *ap, struct ata_device *adev)
  262. {
  263. timing_setup(ap, adev, 0x50, adev->dma_mode, 4);
  264. }
  265. static struct scsi_host_template amd_sht = {
  266. .module = THIS_MODULE,
  267. .name = DRV_NAME,
  268. .ioctl = ata_scsi_ioctl,
  269. .queuecommand = ata_scsi_queuecmd,
  270. .can_queue = ATA_DEF_QUEUE,
  271. .this_id = ATA_SHT_THIS_ID,
  272. .sg_tablesize = LIBATA_MAX_PRD,
  273. .max_sectors = ATA_MAX_SECTORS,
  274. .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
  275. .emulated = ATA_SHT_EMULATED,
  276. .use_clustering = ATA_SHT_USE_CLUSTERING,
  277. .proc_name = DRV_NAME,
  278. .dma_boundary = ATA_DMA_BOUNDARY,
  279. .slave_configure = ata_scsi_slave_config,
  280. .bios_param = ata_std_bios_param,
  281. };
  282. static struct ata_port_operations amd33_port_ops = {
  283. .port_disable = ata_port_disable,
  284. .set_piomode = amd33_set_piomode,
  285. .set_dmamode = amd33_set_dmamode,
  286. .mode_filter = ata_pci_default_filter,
  287. .tf_load = ata_tf_load,
  288. .tf_read = ata_tf_read,
  289. .check_status = ata_check_status,
  290. .exec_command = ata_exec_command,
  291. .dev_select = ata_std_dev_select,
  292. .freeze = ata_bmdma_freeze,
  293. .thaw = ata_bmdma_thaw,
  294. .error_handler = amd_early_error_handler,
  295. .post_internal_cmd = ata_bmdma_post_internal_cmd,
  296. .bmdma_setup = ata_bmdma_setup,
  297. .bmdma_start = ata_bmdma_start,
  298. .bmdma_stop = ata_bmdma_stop,
  299. .bmdma_status = ata_bmdma_status,
  300. .qc_prep = ata_qc_prep,
  301. .qc_issue = ata_qc_issue_prot,
  302. .data_xfer = ata_pio_data_xfer,
  303. .irq_handler = ata_interrupt,
  304. .irq_clear = ata_bmdma_irq_clear,
  305. .port_start = ata_port_start,
  306. .port_stop = ata_port_stop,
  307. .host_stop = ata_host_stop
  308. };
  309. static struct ata_port_operations amd66_port_ops = {
  310. .port_disable = ata_port_disable,
  311. .set_piomode = amd66_set_piomode,
  312. .set_dmamode = amd66_set_dmamode,
  313. .mode_filter = ata_pci_default_filter,
  314. .tf_load = ata_tf_load,
  315. .tf_read = ata_tf_read,
  316. .check_status = ata_check_status,
  317. .exec_command = ata_exec_command,
  318. .dev_select = ata_std_dev_select,
  319. .freeze = ata_bmdma_freeze,
  320. .thaw = ata_bmdma_thaw,
  321. .error_handler = amd_early_error_handler,
  322. .post_internal_cmd = ata_bmdma_post_internal_cmd,
  323. .bmdma_setup = ata_bmdma_setup,
  324. .bmdma_start = ata_bmdma_start,
  325. .bmdma_stop = ata_bmdma_stop,
  326. .bmdma_status = ata_bmdma_status,
  327. .qc_prep = ata_qc_prep,
  328. .qc_issue = ata_qc_issue_prot,
  329. .data_xfer = ata_pio_data_xfer,
  330. .irq_handler = ata_interrupt,
  331. .irq_clear = ata_bmdma_irq_clear,
  332. .port_start = ata_port_start,
  333. .port_stop = ata_port_stop,
  334. .host_stop = ata_host_stop
  335. };
  336. static struct ata_port_operations amd100_port_ops = {
  337. .port_disable = ata_port_disable,
  338. .set_piomode = amd100_set_piomode,
  339. .set_dmamode = amd100_set_dmamode,
  340. .mode_filter = ata_pci_default_filter,
  341. .tf_load = ata_tf_load,
  342. .tf_read = ata_tf_read,
  343. .check_status = ata_check_status,
  344. .exec_command = ata_exec_command,
  345. .dev_select = ata_std_dev_select,
  346. .freeze = ata_bmdma_freeze,
  347. .thaw = ata_bmdma_thaw,
  348. .error_handler = amd_error_handler,
  349. .post_internal_cmd = ata_bmdma_post_internal_cmd,
  350. .bmdma_setup = ata_bmdma_setup,
  351. .bmdma_start = ata_bmdma_start,
  352. .bmdma_stop = ata_bmdma_stop,
  353. .bmdma_status = ata_bmdma_status,
  354. .qc_prep = ata_qc_prep,
  355. .qc_issue = ata_qc_issue_prot,
  356. .data_xfer = ata_pio_data_xfer,
  357. .irq_handler = ata_interrupt,
  358. .irq_clear = ata_bmdma_irq_clear,
  359. .port_start = ata_port_start,
  360. .port_stop = ata_port_stop,
  361. .host_stop = ata_host_stop
  362. };
  363. static struct ata_port_operations amd133_port_ops = {
  364. .port_disable = ata_port_disable,
  365. .set_piomode = amd133_set_piomode,
  366. .set_dmamode = amd133_set_dmamode,
  367. .mode_filter = ata_pci_default_filter,
  368. .tf_load = ata_tf_load,
  369. .tf_read = ata_tf_read,
  370. .check_status = ata_check_status,
  371. .exec_command = ata_exec_command,
  372. .dev_select = ata_std_dev_select,
  373. .freeze = ata_bmdma_freeze,
  374. .thaw = ata_bmdma_thaw,
  375. .error_handler = amd_error_handler,
  376. .post_internal_cmd = ata_bmdma_post_internal_cmd,
  377. .bmdma_setup = ata_bmdma_setup,
  378. .bmdma_start = ata_bmdma_start,
  379. .bmdma_stop = ata_bmdma_stop,
  380. .bmdma_status = ata_bmdma_status,
  381. .qc_prep = ata_qc_prep,
  382. .qc_issue = ata_qc_issue_prot,
  383. .data_xfer = ata_pio_data_xfer,
  384. .irq_handler = ata_interrupt,
  385. .irq_clear = ata_bmdma_irq_clear,
  386. .port_start = ata_port_start,
  387. .port_stop = ata_port_stop,
  388. .host_stop = ata_host_stop
  389. };
  390. static struct ata_port_operations nv100_port_ops = {
  391. .port_disable = ata_port_disable,
  392. .set_piomode = nv100_set_piomode,
  393. .set_dmamode = nv100_set_dmamode,
  394. .mode_filter = ata_pci_default_filter,
  395. .tf_load = ata_tf_load,
  396. .tf_read = ata_tf_read,
  397. .check_status = ata_check_status,
  398. .exec_command = ata_exec_command,
  399. .dev_select = ata_std_dev_select,
  400. .freeze = ata_bmdma_freeze,
  401. .thaw = ata_bmdma_thaw,
  402. .error_handler = nv_error_handler,
  403. .post_internal_cmd = ata_bmdma_post_internal_cmd,
  404. .bmdma_setup = ata_bmdma_setup,
  405. .bmdma_start = ata_bmdma_start,
  406. .bmdma_stop = ata_bmdma_stop,
  407. .bmdma_status = ata_bmdma_status,
  408. .qc_prep = ata_qc_prep,
  409. .qc_issue = ata_qc_issue_prot,
  410. .data_xfer = ata_pio_data_xfer,
  411. .irq_handler = ata_interrupt,
  412. .irq_clear = ata_bmdma_irq_clear,
  413. .port_start = ata_port_start,
  414. .port_stop = ata_port_stop,
  415. .host_stop = ata_host_stop
  416. };
  417. static struct ata_port_operations nv133_port_ops = {
  418. .port_disable = ata_port_disable,
  419. .set_piomode = nv133_set_piomode,
  420. .set_dmamode = nv133_set_dmamode,
  421. .mode_filter = ata_pci_default_filter,
  422. .tf_load = ata_tf_load,
  423. .tf_read = ata_tf_read,
  424. .check_status = ata_check_status,
  425. .exec_command = ata_exec_command,
  426. .dev_select = ata_std_dev_select,
  427. .freeze = ata_bmdma_freeze,
  428. .thaw = ata_bmdma_thaw,
  429. .error_handler = nv_error_handler,
  430. .post_internal_cmd = ata_bmdma_post_internal_cmd,
  431. .bmdma_setup = ata_bmdma_setup,
  432. .bmdma_start = ata_bmdma_start,
  433. .bmdma_stop = ata_bmdma_stop,
  434. .bmdma_status = ata_bmdma_status,
  435. .qc_prep = ata_qc_prep,
  436. .qc_issue = ata_qc_issue_prot,
  437. .data_xfer = ata_pio_data_xfer,
  438. .irq_handler = ata_interrupt,
  439. .irq_clear = ata_bmdma_irq_clear,
  440. .port_start = ata_port_start,
  441. .port_stop = ata_port_stop,
  442. .host_stop = ata_host_stop
  443. };
  444. static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
  445. {
  446. static struct ata_port_info info[10] = {
  447. { /* 0: AMD 7401 */
  448. .sht = &amd_sht,
  449. .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
  450. .pio_mask = 0x1f,
  451. .mwdma_mask = 0x07, /* No SWDMA */
  452. .udma_mask = 0x07, /* UDMA 33 */
  453. .port_ops = &amd33_port_ops
  454. },
  455. { /* 1: Early AMD7409 - no swdma */
  456. .sht = &amd_sht,
  457. .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
  458. .pio_mask = 0x1f,
  459. .mwdma_mask = 0x07,
  460. .udma_mask = 0x1f, /* UDMA 66 */
  461. .port_ops = &amd66_port_ops
  462. },
  463. { /* 2: AMD 7409, no swdma errata */
  464. .sht = &amd_sht,
  465. .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
  466. .pio_mask = 0x1f,
  467. .mwdma_mask = 0x07,
  468. .udma_mask = 0x1f, /* UDMA 66 */
  469. .port_ops = &amd66_port_ops
  470. },
  471. { /* 3: AMD 7411 */
  472. .sht = &amd_sht,
  473. .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
  474. .pio_mask = 0x1f,
  475. .mwdma_mask = 0x07,
  476. .udma_mask = 0x3f, /* UDMA 100 */
  477. .port_ops = &amd100_port_ops
  478. },
  479. { /* 4: AMD 7441 */
  480. .sht = &amd_sht,
  481. .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
  482. .pio_mask = 0x1f,
  483. .mwdma_mask = 0x07,
  484. .udma_mask = 0x3f, /* UDMA 100 */
  485. .port_ops = &amd100_port_ops
  486. },
  487. { /* 5: AMD 8111*/
  488. .sht = &amd_sht,
  489. .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
  490. .pio_mask = 0x1f,
  491. .mwdma_mask = 0x07,
  492. .udma_mask = 0x7f, /* UDMA 133, no swdma */
  493. .port_ops = &amd133_port_ops
  494. },
  495. { /* 6: AMD 8111 UDMA 100 (Serenade) */
  496. .sht = &amd_sht,
  497. .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
  498. .pio_mask = 0x1f,
  499. .mwdma_mask = 0x07,
  500. .udma_mask = 0x3f, /* UDMA 100, no swdma */
  501. .port_ops = &amd133_port_ops
  502. },
  503. { /* 7: Nvidia Nforce */
  504. .sht = &amd_sht,
  505. .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
  506. .pio_mask = 0x1f,
  507. .mwdma_mask = 0x07,
  508. .udma_mask = 0x3f, /* UDMA 100 */
  509. .port_ops = &nv100_port_ops
  510. },
  511. { /* 8: Nvidia Nforce2 and later */
  512. .sht = &amd_sht,
  513. .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
  514. .pio_mask = 0x1f,
  515. .mwdma_mask = 0x07,
  516. .udma_mask = 0x7f, /* UDMA 133, no swdma */
  517. .port_ops = &nv133_port_ops
  518. },
  519. { /* 9: AMD CS5536 (Geode companion) */
  520. .sht = &amd_sht,
  521. .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
  522. .pio_mask = 0x1f,
  523. .mwdma_mask = 0x07,
  524. .udma_mask = 0x3f, /* UDMA 100 */
  525. .port_ops = &amd100_port_ops
  526. }
  527. };
  528. static struct ata_port_info *port_info[2];
  529. static int printed_version;
  530. int type = id->driver_data;
  531. u8 rev;
  532. u8 fifo;
  533. if (!printed_version++)
  534. dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
  535. pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
  536. pci_read_config_byte(pdev, 0x41, &fifo);
  537. /* Check for AMD7409 without swdma errata and if found adjust type */
  538. if (type == 1 && rev > 0x7)
  539. type = 2;
  540. /* Check for AMD7411 */
  541. if (type == 3)
  542. /* FIFO is broken */
  543. pci_write_config_byte(pdev, 0x41, fifo & 0x0F);
  544. else
  545. pci_write_config_byte(pdev, 0x41, fifo | 0xF0);
  546. /* Serenade ? */
  547. if (type == 5 && pdev->subsystem_vendor == PCI_VENDOR_ID_AMD &&
  548. pdev->subsystem_device == PCI_DEVICE_ID_AMD_SERENADE)
  549. type = 6; /* UDMA 100 only */
  550. if (type < 3)
  551. ata_pci_clear_simplex(pdev);
  552. /* And fire it up */
  553. port_info[0] = port_info[1] = &info[type];
  554. return ata_pci_init_one(pdev, port_info, 2);
  555. }
  556. static const struct pci_device_id amd[] = {
  557. { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_COBRA_7401), 0 },
  558. { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_VIPER_7409), 1 },
  559. { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_VIPER_7411), 3 },
  560. { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_OPUS_7441), 4 },
  561. { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_8111_IDE), 5 },
  562. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_IDE), 7 },
  563. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2_IDE), 8 },
  564. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2S_IDE), 8 },
  565. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3_IDE), 8 },
  566. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_IDE), 8 },
  567. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_IDE), 8 },
  568. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_IDE), 8 },
  569. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_IDE), 8 },
  570. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_IDE), 8 },
  571. { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_IDE), 8 },
  572. { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_CS5536_IDE), 9 },
  573. { },
  574. };
  575. static struct pci_driver amd_pci_driver = {
  576. .name = DRV_NAME,
  577. .id_table = amd,
  578. .probe = amd_init_one,
  579. .remove = ata_pci_remove_one
  580. };
  581. static int __init amd_init(void)
  582. {
  583. return pci_register_driver(&amd_pci_driver);
  584. }
  585. static void __exit amd_exit(void)
  586. {
  587. pci_unregister_driver(&amd_pci_driver);
  588. }
  589. MODULE_AUTHOR("Alan Cox");
  590. MODULE_DESCRIPTION("low-level driver for AMD PATA IDE");
  591. MODULE_LICENSE("GPL");
  592. MODULE_DEVICE_TABLE(pci, amd);
  593. MODULE_VERSION(DRV_VERSION);
  594. module_init(amd_init);
  595. module_exit(amd_exit);