at91sam9263_devices.c 36 KB

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  1. /*
  2. * arch/arm/mach-at91/at91sam9263_devices.c
  3. *
  4. * Copyright (C) 2007 Atmel Corporation.
  5. *
  6. * This program is free software; you can redistribute it and/or modify
  7. * it under the terms of the GNU General Public License as published by
  8. * the Free Software Foundation; either version 2 of the License, or
  9. * (at your option) any later version.
  10. *
  11. */
  12. #include <asm/mach/arch.h>
  13. #include <asm/mach/map.h>
  14. #include <linux/dma-mapping.h>
  15. #include <linux/platform_device.h>
  16. #include <linux/i2c-gpio.h>
  17. #include <linux/fb.h>
  18. #include <video/atmel_lcdc.h>
  19. #include <mach/board.h>
  20. #include <mach/gpio.h>
  21. #include <mach/at91sam9263.h>
  22. #include <mach/at91sam9263_matrix.h>
  23. #include <mach/at91sam9_smc.h>
  24. #include "generic.h"
  25. /* --------------------------------------------------------------------
  26. * USB Host
  27. * -------------------------------------------------------------------- */
  28. #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
  29. static u64 ohci_dmamask = DMA_BIT_MASK(32);
  30. static struct at91_usbh_data usbh_data;
  31. static struct resource usbh_resources[] = {
  32. [0] = {
  33. .start = AT91SAM9263_UHP_BASE,
  34. .end = AT91SAM9263_UHP_BASE + SZ_1M - 1,
  35. .flags = IORESOURCE_MEM,
  36. },
  37. [1] = {
  38. .start = AT91SAM9263_ID_UHP,
  39. .end = AT91SAM9263_ID_UHP,
  40. .flags = IORESOURCE_IRQ,
  41. },
  42. };
  43. static struct platform_device at91_usbh_device = {
  44. .name = "at91_ohci",
  45. .id = -1,
  46. .dev = {
  47. .dma_mask = &ohci_dmamask,
  48. .coherent_dma_mask = DMA_BIT_MASK(32),
  49. .platform_data = &usbh_data,
  50. },
  51. .resource = usbh_resources,
  52. .num_resources = ARRAY_SIZE(usbh_resources),
  53. };
  54. void __init at91_add_device_usbh(struct at91_usbh_data *data)
  55. {
  56. int i;
  57. if (!data)
  58. return;
  59. /* Enable VBus control for UHP ports */
  60. for (i = 0; i < data->ports; i++) {
  61. if (data->vbus_pin[i])
  62. at91_set_gpio_output(data->vbus_pin[i], 0);
  63. }
  64. usbh_data = *data;
  65. platform_device_register(&at91_usbh_device);
  66. }
  67. #else
  68. void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
  69. #endif
  70. /* --------------------------------------------------------------------
  71. * USB Device (Gadget)
  72. * -------------------------------------------------------------------- */
  73. #ifdef CONFIG_USB_GADGET_AT91
  74. static struct at91_udc_data udc_data;
  75. static struct resource udc_resources[] = {
  76. [0] = {
  77. .start = AT91SAM9263_BASE_UDP,
  78. .end = AT91SAM9263_BASE_UDP + SZ_16K - 1,
  79. .flags = IORESOURCE_MEM,
  80. },
  81. [1] = {
  82. .start = AT91SAM9263_ID_UDP,
  83. .end = AT91SAM9263_ID_UDP,
  84. .flags = IORESOURCE_IRQ,
  85. },
  86. };
  87. static struct platform_device at91_udc_device = {
  88. .name = "at91_udc",
  89. .id = -1,
  90. .dev = {
  91. .platform_data = &udc_data,
  92. },
  93. .resource = udc_resources,
  94. .num_resources = ARRAY_SIZE(udc_resources),
  95. };
  96. void __init at91_add_device_udc(struct at91_udc_data *data)
  97. {
  98. if (!data)
  99. return;
  100. if (data->vbus_pin) {
  101. at91_set_gpio_input(data->vbus_pin, 0);
  102. at91_set_deglitch(data->vbus_pin, 1);
  103. }
  104. /* Pullup pin is handled internally by USB device peripheral */
  105. udc_data = *data;
  106. platform_device_register(&at91_udc_device);
  107. }
  108. #else
  109. void __init at91_add_device_udc(struct at91_udc_data *data) {}
  110. #endif
  111. /* --------------------------------------------------------------------
  112. * Ethernet
  113. * -------------------------------------------------------------------- */
  114. #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
  115. static u64 eth_dmamask = DMA_BIT_MASK(32);
  116. static struct at91_eth_data eth_data;
  117. static struct resource eth_resources[] = {
  118. [0] = {
  119. .start = AT91SAM9263_BASE_EMAC,
  120. .end = AT91SAM9263_BASE_EMAC + SZ_16K - 1,
  121. .flags = IORESOURCE_MEM,
  122. },
  123. [1] = {
  124. .start = AT91SAM9263_ID_EMAC,
  125. .end = AT91SAM9263_ID_EMAC,
  126. .flags = IORESOURCE_IRQ,
  127. },
  128. };
  129. static struct platform_device at91sam9263_eth_device = {
  130. .name = "macb",
  131. .id = -1,
  132. .dev = {
  133. .dma_mask = &eth_dmamask,
  134. .coherent_dma_mask = DMA_BIT_MASK(32),
  135. .platform_data = &eth_data,
  136. },
  137. .resource = eth_resources,
  138. .num_resources = ARRAY_SIZE(eth_resources),
  139. };
  140. void __init at91_add_device_eth(struct at91_eth_data *data)
  141. {
  142. if (!data)
  143. return;
  144. if (data->phy_irq_pin) {
  145. at91_set_gpio_input(data->phy_irq_pin, 0);
  146. at91_set_deglitch(data->phy_irq_pin, 1);
  147. }
  148. /* Pins used for MII and RMII */
  149. at91_set_A_periph(AT91_PIN_PE21, 0); /* ETXCK_EREFCK */
  150. at91_set_B_periph(AT91_PIN_PC25, 0); /* ERXDV */
  151. at91_set_A_periph(AT91_PIN_PE25, 0); /* ERX0 */
  152. at91_set_A_periph(AT91_PIN_PE26, 0); /* ERX1 */
  153. at91_set_A_periph(AT91_PIN_PE27, 0); /* ERXER */
  154. at91_set_A_periph(AT91_PIN_PE28, 0); /* ETXEN */
  155. at91_set_A_periph(AT91_PIN_PE23, 0); /* ETX0 */
  156. at91_set_A_periph(AT91_PIN_PE24, 0); /* ETX1 */
  157. at91_set_A_periph(AT91_PIN_PE30, 0); /* EMDIO */
  158. at91_set_A_periph(AT91_PIN_PE29, 0); /* EMDC */
  159. if (!data->is_rmii) {
  160. at91_set_A_periph(AT91_PIN_PE22, 0); /* ECRS */
  161. at91_set_B_periph(AT91_PIN_PC26, 0); /* ECOL */
  162. at91_set_B_periph(AT91_PIN_PC22, 0); /* ERX2 */
  163. at91_set_B_periph(AT91_PIN_PC23, 0); /* ERX3 */
  164. at91_set_B_periph(AT91_PIN_PC27, 0); /* ERXCK */
  165. at91_set_B_periph(AT91_PIN_PC20, 0); /* ETX2 */
  166. at91_set_B_periph(AT91_PIN_PC21, 0); /* ETX3 */
  167. at91_set_B_periph(AT91_PIN_PC24, 0); /* ETXER */
  168. }
  169. eth_data = *data;
  170. platform_device_register(&at91sam9263_eth_device);
  171. }
  172. #else
  173. void __init at91_add_device_eth(struct at91_eth_data *data) {}
  174. #endif
  175. /* --------------------------------------------------------------------
  176. * MMC / SD
  177. * -------------------------------------------------------------------- */
  178. #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
  179. static u64 mmc_dmamask = DMA_BIT_MASK(32);
  180. static struct at91_mmc_data mmc0_data, mmc1_data;
  181. static struct resource mmc0_resources[] = {
  182. [0] = {
  183. .start = AT91SAM9263_BASE_MCI0,
  184. .end = AT91SAM9263_BASE_MCI0 + SZ_16K - 1,
  185. .flags = IORESOURCE_MEM,
  186. },
  187. [1] = {
  188. .start = AT91SAM9263_ID_MCI0,
  189. .end = AT91SAM9263_ID_MCI0,
  190. .flags = IORESOURCE_IRQ,
  191. },
  192. };
  193. static struct platform_device at91sam9263_mmc0_device = {
  194. .name = "at91_mci",
  195. .id = 0,
  196. .dev = {
  197. .dma_mask = &mmc_dmamask,
  198. .coherent_dma_mask = DMA_BIT_MASK(32),
  199. .platform_data = &mmc0_data,
  200. },
  201. .resource = mmc0_resources,
  202. .num_resources = ARRAY_SIZE(mmc0_resources),
  203. };
  204. static struct resource mmc1_resources[] = {
  205. [0] = {
  206. .start = AT91SAM9263_BASE_MCI1,
  207. .end = AT91SAM9263_BASE_MCI1 + SZ_16K - 1,
  208. .flags = IORESOURCE_MEM,
  209. },
  210. [1] = {
  211. .start = AT91SAM9263_ID_MCI1,
  212. .end = AT91SAM9263_ID_MCI1,
  213. .flags = IORESOURCE_IRQ,
  214. },
  215. };
  216. static struct platform_device at91sam9263_mmc1_device = {
  217. .name = "at91_mci",
  218. .id = 1,
  219. .dev = {
  220. .dma_mask = &mmc_dmamask,
  221. .coherent_dma_mask = DMA_BIT_MASK(32),
  222. .platform_data = &mmc1_data,
  223. },
  224. .resource = mmc1_resources,
  225. .num_resources = ARRAY_SIZE(mmc1_resources),
  226. };
  227. void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
  228. {
  229. if (!data)
  230. return;
  231. /* input/irq */
  232. if (data->det_pin) {
  233. at91_set_gpio_input(data->det_pin, 1);
  234. at91_set_deglitch(data->det_pin, 1);
  235. }
  236. if (data->wp_pin)
  237. at91_set_gpio_input(data->wp_pin, 1);
  238. if (data->vcc_pin)
  239. at91_set_gpio_output(data->vcc_pin, 0);
  240. if (mmc_id == 0) { /* MCI0 */
  241. /* CLK */
  242. at91_set_A_periph(AT91_PIN_PA12, 0);
  243. if (data->slot_b) {
  244. /* CMD */
  245. at91_set_A_periph(AT91_PIN_PA16, 1);
  246. /* DAT0, maybe DAT1..DAT3 */
  247. at91_set_A_periph(AT91_PIN_PA17, 1);
  248. if (data->wire4) {
  249. at91_set_A_periph(AT91_PIN_PA18, 1);
  250. at91_set_A_periph(AT91_PIN_PA19, 1);
  251. at91_set_A_periph(AT91_PIN_PA20, 1);
  252. }
  253. } else {
  254. /* CMD */
  255. at91_set_A_periph(AT91_PIN_PA1, 1);
  256. /* DAT0, maybe DAT1..DAT3 */
  257. at91_set_A_periph(AT91_PIN_PA0, 1);
  258. if (data->wire4) {
  259. at91_set_A_periph(AT91_PIN_PA3, 1);
  260. at91_set_A_periph(AT91_PIN_PA4, 1);
  261. at91_set_A_periph(AT91_PIN_PA5, 1);
  262. }
  263. }
  264. mmc0_data = *data;
  265. platform_device_register(&at91sam9263_mmc0_device);
  266. } else { /* MCI1 */
  267. /* CLK */
  268. at91_set_A_periph(AT91_PIN_PA6, 0);
  269. if (data->slot_b) {
  270. /* CMD */
  271. at91_set_A_periph(AT91_PIN_PA21, 1);
  272. /* DAT0, maybe DAT1..DAT3 */
  273. at91_set_A_periph(AT91_PIN_PA22, 1);
  274. if (data->wire4) {
  275. at91_set_A_periph(AT91_PIN_PA23, 1);
  276. at91_set_A_periph(AT91_PIN_PA24, 1);
  277. at91_set_A_periph(AT91_PIN_PA25, 1);
  278. }
  279. } else {
  280. /* CMD */
  281. at91_set_A_periph(AT91_PIN_PA7, 1);
  282. /* DAT0, maybe DAT1..DAT3 */
  283. at91_set_A_periph(AT91_PIN_PA8, 1);
  284. if (data->wire4) {
  285. at91_set_A_periph(AT91_PIN_PA9, 1);
  286. at91_set_A_periph(AT91_PIN_PA10, 1);
  287. at91_set_A_periph(AT91_PIN_PA11, 1);
  288. }
  289. }
  290. mmc1_data = *data;
  291. platform_device_register(&at91sam9263_mmc1_device);
  292. }
  293. }
  294. #else
  295. void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
  296. #endif
  297. /* --------------------------------------------------------------------
  298. * Compact Flash (PCMCIA or IDE)
  299. * -------------------------------------------------------------------- */
  300. #if defined(CONFIG_AT91_CF) || defined(CONFIG_AT91_CF_MODULE) || \
  301. defined(CONFIG_BLK_DEV_IDE_AT91) || defined(CONFIG_BLK_DEV_IDE_AT91_MODULE)
  302. static struct at91_cf_data cf0_data;
  303. static struct resource cf0_resources[] = {
  304. [0] = {
  305. .start = AT91_CHIPSELECT_4,
  306. .end = AT91_CHIPSELECT_4 + SZ_256M - 1,
  307. .flags = IORESOURCE_MEM | IORESOURCE_MEM_8AND16BIT,
  308. }
  309. };
  310. static struct platform_device cf0_device = {
  311. .id = 0,
  312. .dev = {
  313. .platform_data = &cf0_data,
  314. },
  315. .resource = cf0_resources,
  316. .num_resources = ARRAY_SIZE(cf0_resources),
  317. };
  318. static struct at91_cf_data cf1_data;
  319. static struct resource cf1_resources[] = {
  320. [0] = {
  321. .start = AT91_CHIPSELECT_5,
  322. .end = AT91_CHIPSELECT_5 + SZ_256M - 1,
  323. .flags = IORESOURCE_MEM | IORESOURCE_MEM_8AND16BIT,
  324. }
  325. };
  326. static struct platform_device cf1_device = {
  327. .id = 1,
  328. .dev = {
  329. .platform_data = &cf1_data,
  330. },
  331. .resource = cf1_resources,
  332. .num_resources = ARRAY_SIZE(cf1_resources),
  333. };
  334. void __init at91_add_device_cf(struct at91_cf_data *data)
  335. {
  336. unsigned long ebi0_csa;
  337. struct platform_device *pdev;
  338. if (!data)
  339. return;
  340. /*
  341. * assign CS4 or CS5 to SMC with Compact Flash logic support,
  342. * we assume SMC timings are configured by board code,
  343. * except True IDE where timings are controlled by driver
  344. */
  345. ebi0_csa = at91_sys_read(AT91_MATRIX_EBI0CSA);
  346. switch (data->chipselect) {
  347. case 4:
  348. at91_set_A_periph(AT91_PIN_PD6, 0); /* EBI0_NCS4/CFCS0 */
  349. ebi0_csa |= AT91_MATRIX_EBI0_CS4A_SMC_CF1;
  350. cf0_data = *data;
  351. pdev = &cf0_device;
  352. break;
  353. case 5:
  354. at91_set_A_periph(AT91_PIN_PD7, 0); /* EBI0_NCS5/CFCS1 */
  355. ebi0_csa |= AT91_MATRIX_EBI0_CS5A_SMC_CF2;
  356. cf1_data = *data;
  357. pdev = &cf1_device;
  358. break;
  359. default:
  360. printk(KERN_ERR "AT91 CF: bad chip-select requested (%u)\n",
  361. data->chipselect);
  362. return;
  363. }
  364. at91_sys_write(AT91_MATRIX_EBI0CSA, ebi0_csa);
  365. if (data->det_pin) {
  366. at91_set_gpio_input(data->det_pin, 1);
  367. at91_set_deglitch(data->det_pin, 1);
  368. }
  369. if (data->irq_pin) {
  370. at91_set_gpio_input(data->irq_pin, 1);
  371. at91_set_deglitch(data->irq_pin, 1);
  372. }
  373. if (data->vcc_pin)
  374. /* initially off */
  375. at91_set_gpio_output(data->vcc_pin, 0);
  376. /* enable EBI controlled pins */
  377. at91_set_A_periph(AT91_PIN_PD5, 1); /* NWAIT */
  378. at91_set_A_periph(AT91_PIN_PD8, 0); /* CFCE1 */
  379. at91_set_A_periph(AT91_PIN_PD9, 0); /* CFCE2 */
  380. at91_set_A_periph(AT91_PIN_PD14, 0); /* CFNRW */
  381. pdev->name = (data->flags & AT91_CF_TRUE_IDE) ? "at91_ide" : "at91_cf";
  382. platform_device_register(pdev);
  383. }
  384. #else
  385. void __init at91_add_device_cf(struct at91_cf_data *data) {}
  386. #endif
  387. /* --------------------------------------------------------------------
  388. * NAND / SmartMedia
  389. * -------------------------------------------------------------------- */
  390. #if defined(CONFIG_MTD_NAND_ATMEL) || defined(CONFIG_MTD_NAND_ATMEL_MODULE)
  391. static struct atmel_nand_data nand_data;
  392. #define NAND_BASE AT91_CHIPSELECT_3
  393. static struct resource nand_resources[] = {
  394. [0] = {
  395. .start = NAND_BASE,
  396. .end = NAND_BASE + SZ_256M - 1,
  397. .flags = IORESOURCE_MEM,
  398. },
  399. [1] = {
  400. .start = AT91_BASE_SYS + AT91_ECC0,
  401. .end = AT91_BASE_SYS + AT91_ECC0 + SZ_512 - 1,
  402. .flags = IORESOURCE_MEM,
  403. }
  404. };
  405. static struct platform_device at91sam9263_nand_device = {
  406. .name = "atmel_nand",
  407. .id = -1,
  408. .dev = {
  409. .platform_data = &nand_data,
  410. },
  411. .resource = nand_resources,
  412. .num_resources = ARRAY_SIZE(nand_resources),
  413. };
  414. void __init at91_add_device_nand(struct atmel_nand_data *data)
  415. {
  416. unsigned long csa;
  417. if (!data)
  418. return;
  419. csa = at91_sys_read(AT91_MATRIX_EBI0CSA);
  420. at91_sys_write(AT91_MATRIX_EBI0CSA, csa | AT91_MATRIX_EBI0_CS3A_SMC_SMARTMEDIA);
  421. /* enable pin */
  422. if (data->enable_pin)
  423. at91_set_gpio_output(data->enable_pin, 1);
  424. /* ready/busy pin */
  425. if (data->rdy_pin)
  426. at91_set_gpio_input(data->rdy_pin, 1);
  427. /* card detect pin */
  428. if (data->det_pin)
  429. at91_set_gpio_input(data->det_pin, 1);
  430. nand_data = *data;
  431. platform_device_register(&at91sam9263_nand_device);
  432. }
  433. #else
  434. void __init at91_add_device_nand(struct atmel_nand_data *data) {}
  435. #endif
  436. /* --------------------------------------------------------------------
  437. * TWI (i2c)
  438. * -------------------------------------------------------------------- */
  439. /*
  440. * Prefer the GPIO code since the TWI controller isn't robust
  441. * (gets overruns and underruns under load) and can only issue
  442. * repeated STARTs in one scenario (the driver doesn't yet handle them).
  443. */
  444. #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
  445. static struct i2c_gpio_platform_data pdata = {
  446. .sda_pin = AT91_PIN_PB4,
  447. .sda_is_open_drain = 1,
  448. .scl_pin = AT91_PIN_PB5,
  449. .scl_is_open_drain = 1,
  450. .udelay = 2, /* ~100 kHz */
  451. };
  452. static struct platform_device at91sam9263_twi_device = {
  453. .name = "i2c-gpio",
  454. .id = -1,
  455. .dev.platform_data = &pdata,
  456. };
  457. void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
  458. {
  459. at91_set_GPIO_periph(AT91_PIN_PB4, 1); /* TWD (SDA) */
  460. at91_set_multi_drive(AT91_PIN_PB4, 1);
  461. at91_set_GPIO_periph(AT91_PIN_PB5, 1); /* TWCK (SCL) */
  462. at91_set_multi_drive(AT91_PIN_PB5, 1);
  463. i2c_register_board_info(0, devices, nr_devices);
  464. platform_device_register(&at91sam9263_twi_device);
  465. }
  466. #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
  467. static struct resource twi_resources[] = {
  468. [0] = {
  469. .start = AT91SAM9263_BASE_TWI,
  470. .end = AT91SAM9263_BASE_TWI + SZ_16K - 1,
  471. .flags = IORESOURCE_MEM,
  472. },
  473. [1] = {
  474. .start = AT91SAM9263_ID_TWI,
  475. .end = AT91SAM9263_ID_TWI,
  476. .flags = IORESOURCE_IRQ,
  477. },
  478. };
  479. static struct platform_device at91sam9263_twi_device = {
  480. .name = "at91_i2c",
  481. .id = -1,
  482. .resource = twi_resources,
  483. .num_resources = ARRAY_SIZE(twi_resources),
  484. };
  485. void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
  486. {
  487. /* pins used for TWI interface */
  488. at91_set_A_periph(AT91_PIN_PB4, 0); /* TWD */
  489. at91_set_multi_drive(AT91_PIN_PB4, 1);
  490. at91_set_A_periph(AT91_PIN_PB5, 0); /* TWCK */
  491. at91_set_multi_drive(AT91_PIN_PB5, 1);
  492. i2c_register_board_info(0, devices, nr_devices);
  493. platform_device_register(&at91sam9263_twi_device);
  494. }
  495. #else
  496. void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
  497. #endif
  498. /* --------------------------------------------------------------------
  499. * SPI
  500. * -------------------------------------------------------------------- */
  501. #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
  502. static u64 spi_dmamask = DMA_BIT_MASK(32);
  503. static struct resource spi0_resources[] = {
  504. [0] = {
  505. .start = AT91SAM9263_BASE_SPI0,
  506. .end = AT91SAM9263_BASE_SPI0 + SZ_16K - 1,
  507. .flags = IORESOURCE_MEM,
  508. },
  509. [1] = {
  510. .start = AT91SAM9263_ID_SPI0,
  511. .end = AT91SAM9263_ID_SPI0,
  512. .flags = IORESOURCE_IRQ,
  513. },
  514. };
  515. static struct platform_device at91sam9263_spi0_device = {
  516. .name = "atmel_spi",
  517. .id = 0,
  518. .dev = {
  519. .dma_mask = &spi_dmamask,
  520. .coherent_dma_mask = DMA_BIT_MASK(32),
  521. },
  522. .resource = spi0_resources,
  523. .num_resources = ARRAY_SIZE(spi0_resources),
  524. };
  525. static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA5, AT91_PIN_PA3, AT91_PIN_PA4, AT91_PIN_PB11 };
  526. static struct resource spi1_resources[] = {
  527. [0] = {
  528. .start = AT91SAM9263_BASE_SPI1,
  529. .end = AT91SAM9263_BASE_SPI1 + SZ_16K - 1,
  530. .flags = IORESOURCE_MEM,
  531. },
  532. [1] = {
  533. .start = AT91SAM9263_ID_SPI1,
  534. .end = AT91SAM9263_ID_SPI1,
  535. .flags = IORESOURCE_IRQ,
  536. },
  537. };
  538. static struct platform_device at91sam9263_spi1_device = {
  539. .name = "atmel_spi",
  540. .id = 1,
  541. .dev = {
  542. .dma_mask = &spi_dmamask,
  543. .coherent_dma_mask = DMA_BIT_MASK(32),
  544. },
  545. .resource = spi1_resources,
  546. .num_resources = ARRAY_SIZE(spi1_resources),
  547. };
  548. static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB15, AT91_PIN_PB16, AT91_PIN_PB17, AT91_PIN_PB18 };
  549. void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
  550. {
  551. int i;
  552. unsigned long cs_pin;
  553. short enable_spi0 = 0;
  554. short enable_spi1 = 0;
  555. /* Choose SPI chip-selects */
  556. for (i = 0; i < nr_devices; i++) {
  557. if (devices[i].controller_data)
  558. cs_pin = (unsigned long) devices[i].controller_data;
  559. else if (devices[i].bus_num == 0)
  560. cs_pin = spi0_standard_cs[devices[i].chip_select];
  561. else
  562. cs_pin = spi1_standard_cs[devices[i].chip_select];
  563. if (devices[i].bus_num == 0)
  564. enable_spi0 = 1;
  565. else
  566. enable_spi1 = 1;
  567. /* enable chip-select pin */
  568. at91_set_gpio_output(cs_pin, 1);
  569. /* pass chip-select pin to driver */
  570. devices[i].controller_data = (void *) cs_pin;
  571. }
  572. spi_register_board_info(devices, nr_devices);
  573. /* Configure SPI bus(es) */
  574. if (enable_spi0) {
  575. at91_set_B_periph(AT91_PIN_PA0, 0); /* SPI0_MISO */
  576. at91_set_B_periph(AT91_PIN_PA1, 0); /* SPI0_MOSI */
  577. at91_set_B_periph(AT91_PIN_PA2, 0); /* SPI0_SPCK */
  578. platform_device_register(&at91sam9263_spi0_device);
  579. }
  580. if (enable_spi1) {
  581. at91_set_A_periph(AT91_PIN_PB12, 0); /* SPI1_MISO */
  582. at91_set_A_periph(AT91_PIN_PB13, 0); /* SPI1_MOSI */
  583. at91_set_A_periph(AT91_PIN_PB14, 0); /* SPI1_SPCK */
  584. platform_device_register(&at91sam9263_spi1_device);
  585. }
  586. }
  587. #else
  588. void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
  589. #endif
  590. /* --------------------------------------------------------------------
  591. * AC97
  592. * -------------------------------------------------------------------- */
  593. #if defined(CONFIG_SND_ATMEL_AC97C) || defined(CONFIG_SND_ATMEL_AC97C_MODULE)
  594. static u64 ac97_dmamask = DMA_BIT_MASK(32);
  595. static struct ac97c_platform_data ac97_data;
  596. static struct resource ac97_resources[] = {
  597. [0] = {
  598. .start = AT91SAM9263_BASE_AC97C,
  599. .end = AT91SAM9263_BASE_AC97C + SZ_16K - 1,
  600. .flags = IORESOURCE_MEM,
  601. },
  602. [1] = {
  603. .start = AT91SAM9263_ID_AC97C,
  604. .end = AT91SAM9263_ID_AC97C,
  605. .flags = IORESOURCE_IRQ,
  606. },
  607. };
  608. static struct platform_device at91sam9263_ac97_device = {
  609. .name = "atmel_ac97c",
  610. .id = 0,
  611. .dev = {
  612. .dma_mask = &ac97_dmamask,
  613. .coherent_dma_mask = DMA_BIT_MASK(32),
  614. .platform_data = &ac97_data,
  615. },
  616. .resource = ac97_resources,
  617. .num_resources = ARRAY_SIZE(ac97_resources),
  618. };
  619. void __init at91_add_device_ac97(struct ac97c_platform_data *data)
  620. {
  621. if (!data)
  622. return;
  623. at91_set_A_periph(AT91_PIN_PB0, 0); /* AC97FS */
  624. at91_set_A_periph(AT91_PIN_PB1, 0); /* AC97CK */
  625. at91_set_A_periph(AT91_PIN_PB2, 0); /* AC97TX */
  626. at91_set_A_periph(AT91_PIN_PB3, 0); /* AC97RX */
  627. /* reset */
  628. if (data->reset_pin)
  629. at91_set_gpio_output(data->reset_pin, 0);
  630. ac97_data = *data;
  631. platform_device_register(&at91sam9263_ac97_device);
  632. }
  633. #else
  634. void __init at91_add_device_ac97(struct ac97c_platform_data *data) {}
  635. #endif
  636. /* --------------------------------------------------------------------
  637. * CAN Controller
  638. * -------------------------------------------------------------------- */
  639. #if defined(CONFIG_CAN_AT91) || defined(CONFIG_CAN_AT91_MODULE)
  640. static struct resource can_resources[] = {
  641. [0] = {
  642. .start = AT91SAM9263_BASE_CAN,
  643. .end = AT91SAM9263_BASE_CAN + SZ_16K - 1,
  644. .flags = IORESOURCE_MEM,
  645. },
  646. [1] = {
  647. .start = AT91SAM9263_ID_CAN,
  648. .end = AT91SAM9263_ID_CAN,
  649. .flags = IORESOURCE_IRQ,
  650. },
  651. };
  652. static struct platform_device at91sam9263_can_device = {
  653. .name = "at91_can",
  654. .id = -1,
  655. .resource = can_resources,
  656. .num_resources = ARRAY_SIZE(can_resources),
  657. };
  658. void __init at91_add_device_can(struct at91_can_data *data)
  659. {
  660. at91_set_A_periph(AT91_PIN_PA13, 0); /* CANTX */
  661. at91_set_A_periph(AT91_PIN_PA14, 0); /* CANRX */
  662. at91sam9263_can_device.dev.platform_data = data;
  663. platform_device_register(&at91sam9263_can_device);
  664. }
  665. #else
  666. void __init at91_add_device_can(struct at91_can_data *data) {}
  667. #endif
  668. /* --------------------------------------------------------------------
  669. * LCD Controller
  670. * -------------------------------------------------------------------- */
  671. #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
  672. static u64 lcdc_dmamask = DMA_BIT_MASK(32);
  673. static struct atmel_lcdfb_info lcdc_data;
  674. static struct resource lcdc_resources[] = {
  675. [0] = {
  676. .start = AT91SAM9263_LCDC_BASE,
  677. .end = AT91SAM9263_LCDC_BASE + SZ_4K - 1,
  678. .flags = IORESOURCE_MEM,
  679. },
  680. [1] = {
  681. .start = AT91SAM9263_ID_LCDC,
  682. .end = AT91SAM9263_ID_LCDC,
  683. .flags = IORESOURCE_IRQ,
  684. },
  685. };
  686. static struct platform_device at91_lcdc_device = {
  687. .name = "atmel_lcdfb",
  688. .id = 0,
  689. .dev = {
  690. .dma_mask = &lcdc_dmamask,
  691. .coherent_dma_mask = DMA_BIT_MASK(32),
  692. .platform_data = &lcdc_data,
  693. },
  694. .resource = lcdc_resources,
  695. .num_resources = ARRAY_SIZE(lcdc_resources),
  696. };
  697. void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
  698. {
  699. if (!data)
  700. return;
  701. at91_set_A_periph(AT91_PIN_PC1, 0); /* LCDHSYNC */
  702. at91_set_A_periph(AT91_PIN_PC2, 0); /* LCDDOTCK */
  703. at91_set_A_periph(AT91_PIN_PC3, 0); /* LCDDEN */
  704. at91_set_B_periph(AT91_PIN_PB9, 0); /* LCDCC */
  705. at91_set_A_periph(AT91_PIN_PC6, 0); /* LCDD2 */
  706. at91_set_A_periph(AT91_PIN_PC7, 0); /* LCDD3 */
  707. at91_set_A_periph(AT91_PIN_PC8, 0); /* LCDD4 */
  708. at91_set_A_periph(AT91_PIN_PC9, 0); /* LCDD5 */
  709. at91_set_A_periph(AT91_PIN_PC10, 0); /* LCDD6 */
  710. at91_set_A_periph(AT91_PIN_PC11, 0); /* LCDD7 */
  711. at91_set_A_periph(AT91_PIN_PC14, 0); /* LCDD10 */
  712. at91_set_A_periph(AT91_PIN_PC15, 0); /* LCDD11 */
  713. at91_set_A_periph(AT91_PIN_PC16, 0); /* LCDD12 */
  714. at91_set_B_periph(AT91_PIN_PC12, 0); /* LCDD13 */
  715. at91_set_A_periph(AT91_PIN_PC18, 0); /* LCDD14 */
  716. at91_set_A_periph(AT91_PIN_PC19, 0); /* LCDD15 */
  717. at91_set_A_periph(AT91_PIN_PC22, 0); /* LCDD18 */
  718. at91_set_A_periph(AT91_PIN_PC23, 0); /* LCDD19 */
  719. at91_set_A_periph(AT91_PIN_PC24, 0); /* LCDD20 */
  720. at91_set_B_periph(AT91_PIN_PC17, 0); /* LCDD21 */
  721. at91_set_A_periph(AT91_PIN_PC26, 0); /* LCDD22 */
  722. at91_set_A_periph(AT91_PIN_PC27, 0); /* LCDD23 */
  723. lcdc_data = *data;
  724. platform_device_register(&at91_lcdc_device);
  725. }
  726. #else
  727. void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
  728. #endif
  729. /* --------------------------------------------------------------------
  730. * Image Sensor Interface
  731. * -------------------------------------------------------------------- */
  732. #if defined(CONFIG_VIDEO_AT91_ISI) || defined(CONFIG_VIDEO_AT91_ISI_MODULE)
  733. struct resource isi_resources[] = {
  734. [0] = {
  735. .start = AT91SAM9263_BASE_ISI,
  736. .end = AT91SAM9263_BASE_ISI + SZ_16K - 1,
  737. .flags = IORESOURCE_MEM,
  738. },
  739. [1] = {
  740. .start = AT91SAM9263_ID_ISI,
  741. .end = AT91SAM9263_ID_ISI,
  742. .flags = IORESOURCE_IRQ,
  743. },
  744. };
  745. static struct platform_device at91sam9263_isi_device = {
  746. .name = "at91_isi",
  747. .id = -1,
  748. .resource = isi_resources,
  749. .num_resources = ARRAY_SIZE(isi_resources),
  750. };
  751. void __init at91_add_device_isi(void)
  752. {
  753. at91_set_A_periph(AT91_PIN_PE0, 0); /* ISI_D0 */
  754. at91_set_A_periph(AT91_PIN_PE1, 0); /* ISI_D1 */
  755. at91_set_A_periph(AT91_PIN_PE2, 0); /* ISI_D2 */
  756. at91_set_A_periph(AT91_PIN_PE3, 0); /* ISI_D3 */
  757. at91_set_A_periph(AT91_PIN_PE4, 0); /* ISI_D4 */
  758. at91_set_A_periph(AT91_PIN_PE5, 0); /* ISI_D5 */
  759. at91_set_A_periph(AT91_PIN_PE6, 0); /* ISI_D6 */
  760. at91_set_A_periph(AT91_PIN_PE7, 0); /* ISI_D7 */
  761. at91_set_A_periph(AT91_PIN_PE8, 0); /* ISI_PCK */
  762. at91_set_A_periph(AT91_PIN_PE9, 0); /* ISI_HSYNC */
  763. at91_set_A_periph(AT91_PIN_PE10, 0); /* ISI_VSYNC */
  764. at91_set_B_periph(AT91_PIN_PE11, 0); /* ISI_MCK (PCK3) */
  765. at91_set_B_periph(AT91_PIN_PE12, 0); /* ISI_PD8 */
  766. at91_set_B_periph(AT91_PIN_PE13, 0); /* ISI_PD9 */
  767. at91_set_B_periph(AT91_PIN_PE14, 0); /* ISI_PD10 */
  768. at91_set_B_periph(AT91_PIN_PE15, 0); /* ISI_PD11 */
  769. }
  770. #else
  771. void __init at91_add_device_isi(void) {}
  772. #endif
  773. /* --------------------------------------------------------------------
  774. * Timer/Counter block
  775. * -------------------------------------------------------------------- */
  776. #ifdef CONFIG_ATMEL_TCLIB
  777. static struct resource tcb_resources[] = {
  778. [0] = {
  779. .start = AT91SAM9263_BASE_TCB0,
  780. .end = AT91SAM9263_BASE_TCB0 + SZ_16K - 1,
  781. .flags = IORESOURCE_MEM,
  782. },
  783. [1] = {
  784. .start = AT91SAM9263_ID_TCB,
  785. .end = AT91SAM9263_ID_TCB,
  786. .flags = IORESOURCE_IRQ,
  787. },
  788. };
  789. static struct platform_device at91sam9263_tcb_device = {
  790. .name = "atmel_tcb",
  791. .id = 0,
  792. .resource = tcb_resources,
  793. .num_resources = ARRAY_SIZE(tcb_resources),
  794. };
  795. static void __init at91_add_device_tc(void)
  796. {
  797. platform_device_register(&at91sam9263_tcb_device);
  798. }
  799. #else
  800. static void __init at91_add_device_tc(void) { }
  801. #endif
  802. /* --------------------------------------------------------------------
  803. * RTT
  804. * -------------------------------------------------------------------- */
  805. static struct resource rtt0_resources[] = {
  806. {
  807. .start = AT91_BASE_SYS + AT91_RTT0,
  808. .end = AT91_BASE_SYS + AT91_RTT0 + SZ_16 - 1,
  809. .flags = IORESOURCE_MEM,
  810. }
  811. };
  812. static struct platform_device at91sam9263_rtt0_device = {
  813. .name = "at91_rtt",
  814. .id = 0,
  815. .resource = rtt0_resources,
  816. .num_resources = ARRAY_SIZE(rtt0_resources),
  817. };
  818. static struct resource rtt1_resources[] = {
  819. {
  820. .start = AT91_BASE_SYS + AT91_RTT1,
  821. .end = AT91_BASE_SYS + AT91_RTT1 + SZ_16 - 1,
  822. .flags = IORESOURCE_MEM,
  823. }
  824. };
  825. static struct platform_device at91sam9263_rtt1_device = {
  826. .name = "at91_rtt",
  827. .id = 1,
  828. .resource = rtt1_resources,
  829. .num_resources = ARRAY_SIZE(rtt1_resources),
  830. };
  831. static void __init at91_add_device_rtt(void)
  832. {
  833. platform_device_register(&at91sam9263_rtt0_device);
  834. platform_device_register(&at91sam9263_rtt1_device);
  835. }
  836. /* --------------------------------------------------------------------
  837. * Watchdog
  838. * -------------------------------------------------------------------- */
  839. #if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
  840. static struct platform_device at91sam9263_wdt_device = {
  841. .name = "at91_wdt",
  842. .id = -1,
  843. .num_resources = 0,
  844. };
  845. static void __init at91_add_device_watchdog(void)
  846. {
  847. platform_device_register(&at91sam9263_wdt_device);
  848. }
  849. #else
  850. static void __init at91_add_device_watchdog(void) {}
  851. #endif
  852. /* --------------------------------------------------------------------
  853. * PWM
  854. * --------------------------------------------------------------------*/
  855. #if defined(CONFIG_ATMEL_PWM)
  856. static u32 pwm_mask;
  857. static struct resource pwm_resources[] = {
  858. [0] = {
  859. .start = AT91SAM9263_BASE_PWMC,
  860. .end = AT91SAM9263_BASE_PWMC + SZ_16K - 1,
  861. .flags = IORESOURCE_MEM,
  862. },
  863. [1] = {
  864. .start = AT91SAM9263_ID_PWMC,
  865. .end = AT91SAM9263_ID_PWMC,
  866. .flags = IORESOURCE_IRQ,
  867. },
  868. };
  869. static struct platform_device at91sam9263_pwm0_device = {
  870. .name = "atmel_pwm",
  871. .id = -1,
  872. .dev = {
  873. .platform_data = &pwm_mask,
  874. },
  875. .resource = pwm_resources,
  876. .num_resources = ARRAY_SIZE(pwm_resources),
  877. };
  878. void __init at91_add_device_pwm(u32 mask)
  879. {
  880. if (mask & (1 << AT91_PWM0))
  881. at91_set_B_periph(AT91_PIN_PB7, 1); /* enable PWM0 */
  882. if (mask & (1 << AT91_PWM1))
  883. at91_set_B_periph(AT91_PIN_PB8, 1); /* enable PWM1 */
  884. if (mask & (1 << AT91_PWM2))
  885. at91_set_B_periph(AT91_PIN_PC29, 1); /* enable PWM2 */
  886. if (mask & (1 << AT91_PWM3))
  887. at91_set_B_periph(AT91_PIN_PB29, 1); /* enable PWM3 */
  888. pwm_mask = mask;
  889. platform_device_register(&at91sam9263_pwm0_device);
  890. }
  891. #else
  892. void __init at91_add_device_pwm(u32 mask) {}
  893. #endif
  894. /* --------------------------------------------------------------------
  895. * SSC -- Synchronous Serial Controller
  896. * -------------------------------------------------------------------- */
  897. #if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
  898. static u64 ssc0_dmamask = DMA_BIT_MASK(32);
  899. static struct resource ssc0_resources[] = {
  900. [0] = {
  901. .start = AT91SAM9263_BASE_SSC0,
  902. .end = AT91SAM9263_BASE_SSC0 + SZ_16K - 1,
  903. .flags = IORESOURCE_MEM,
  904. },
  905. [1] = {
  906. .start = AT91SAM9263_ID_SSC0,
  907. .end = AT91SAM9263_ID_SSC0,
  908. .flags = IORESOURCE_IRQ,
  909. },
  910. };
  911. static struct platform_device at91sam9263_ssc0_device = {
  912. .name = "ssc",
  913. .id = 0,
  914. .dev = {
  915. .dma_mask = &ssc0_dmamask,
  916. .coherent_dma_mask = DMA_BIT_MASK(32),
  917. },
  918. .resource = ssc0_resources,
  919. .num_resources = ARRAY_SIZE(ssc0_resources),
  920. };
  921. static inline void configure_ssc0_pins(unsigned pins)
  922. {
  923. if (pins & ATMEL_SSC_TF)
  924. at91_set_B_periph(AT91_PIN_PB0, 1);
  925. if (pins & ATMEL_SSC_TK)
  926. at91_set_B_periph(AT91_PIN_PB1, 1);
  927. if (pins & ATMEL_SSC_TD)
  928. at91_set_B_periph(AT91_PIN_PB2, 1);
  929. if (pins & ATMEL_SSC_RD)
  930. at91_set_B_periph(AT91_PIN_PB3, 1);
  931. if (pins & ATMEL_SSC_RK)
  932. at91_set_B_periph(AT91_PIN_PB4, 1);
  933. if (pins & ATMEL_SSC_RF)
  934. at91_set_B_periph(AT91_PIN_PB5, 1);
  935. }
  936. static u64 ssc1_dmamask = DMA_BIT_MASK(32);
  937. static struct resource ssc1_resources[] = {
  938. [0] = {
  939. .start = AT91SAM9263_BASE_SSC1,
  940. .end = AT91SAM9263_BASE_SSC1 + SZ_16K - 1,
  941. .flags = IORESOURCE_MEM,
  942. },
  943. [1] = {
  944. .start = AT91SAM9263_ID_SSC1,
  945. .end = AT91SAM9263_ID_SSC1,
  946. .flags = IORESOURCE_IRQ,
  947. },
  948. };
  949. static struct platform_device at91sam9263_ssc1_device = {
  950. .name = "ssc",
  951. .id = 1,
  952. .dev = {
  953. .dma_mask = &ssc1_dmamask,
  954. .coherent_dma_mask = DMA_BIT_MASK(32),
  955. },
  956. .resource = ssc1_resources,
  957. .num_resources = ARRAY_SIZE(ssc1_resources),
  958. };
  959. static inline void configure_ssc1_pins(unsigned pins)
  960. {
  961. if (pins & ATMEL_SSC_TF)
  962. at91_set_A_periph(AT91_PIN_PB6, 1);
  963. if (pins & ATMEL_SSC_TK)
  964. at91_set_A_periph(AT91_PIN_PB7, 1);
  965. if (pins & ATMEL_SSC_TD)
  966. at91_set_A_periph(AT91_PIN_PB8, 1);
  967. if (pins & ATMEL_SSC_RD)
  968. at91_set_A_periph(AT91_PIN_PB9, 1);
  969. if (pins & ATMEL_SSC_RK)
  970. at91_set_A_periph(AT91_PIN_PB10, 1);
  971. if (pins & ATMEL_SSC_RF)
  972. at91_set_A_periph(AT91_PIN_PB11, 1);
  973. }
  974. /*
  975. * SSC controllers are accessed through library code, instead of any
  976. * kind of all-singing/all-dancing driver. For example one could be
  977. * used by a particular I2S audio codec's driver, while another one
  978. * on the same system might be used by a custom data capture driver.
  979. */
  980. void __init at91_add_device_ssc(unsigned id, unsigned pins)
  981. {
  982. struct platform_device *pdev;
  983. /*
  984. * NOTE: caller is responsible for passing information matching
  985. * "pins" to whatever will be using each particular controller.
  986. */
  987. switch (id) {
  988. case AT91SAM9263_ID_SSC0:
  989. pdev = &at91sam9263_ssc0_device;
  990. configure_ssc0_pins(pins);
  991. break;
  992. case AT91SAM9263_ID_SSC1:
  993. pdev = &at91sam9263_ssc1_device;
  994. configure_ssc1_pins(pins);
  995. break;
  996. default:
  997. return;
  998. }
  999. platform_device_register(pdev);
  1000. }
  1001. #else
  1002. void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
  1003. #endif
  1004. /* --------------------------------------------------------------------
  1005. * UART
  1006. * -------------------------------------------------------------------- */
  1007. #if defined(CONFIG_SERIAL_ATMEL)
  1008. static struct resource dbgu_resources[] = {
  1009. [0] = {
  1010. .start = AT91_VA_BASE_SYS + AT91_DBGU,
  1011. .end = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
  1012. .flags = IORESOURCE_MEM,
  1013. },
  1014. [1] = {
  1015. .start = AT91_ID_SYS,
  1016. .end = AT91_ID_SYS,
  1017. .flags = IORESOURCE_IRQ,
  1018. },
  1019. };
  1020. static struct atmel_uart_data dbgu_data = {
  1021. .use_dma_tx = 0,
  1022. .use_dma_rx = 0, /* DBGU not capable of receive DMA */
  1023. .regs = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
  1024. };
  1025. static u64 dbgu_dmamask = DMA_BIT_MASK(32);
  1026. static struct platform_device at91sam9263_dbgu_device = {
  1027. .name = "atmel_usart",
  1028. .id = 0,
  1029. .dev = {
  1030. .dma_mask = &dbgu_dmamask,
  1031. .coherent_dma_mask = DMA_BIT_MASK(32),
  1032. .platform_data = &dbgu_data,
  1033. },
  1034. .resource = dbgu_resources,
  1035. .num_resources = ARRAY_SIZE(dbgu_resources),
  1036. };
  1037. static inline void configure_dbgu_pins(void)
  1038. {
  1039. at91_set_A_periph(AT91_PIN_PC30, 0); /* DRXD */
  1040. at91_set_A_periph(AT91_PIN_PC31, 1); /* DTXD */
  1041. }
  1042. static struct resource uart0_resources[] = {
  1043. [0] = {
  1044. .start = AT91SAM9263_BASE_US0,
  1045. .end = AT91SAM9263_BASE_US0 + SZ_16K - 1,
  1046. .flags = IORESOURCE_MEM,
  1047. },
  1048. [1] = {
  1049. .start = AT91SAM9263_ID_US0,
  1050. .end = AT91SAM9263_ID_US0,
  1051. .flags = IORESOURCE_IRQ,
  1052. },
  1053. };
  1054. static struct atmel_uart_data uart0_data = {
  1055. .use_dma_tx = 1,
  1056. .use_dma_rx = 1,
  1057. };
  1058. static u64 uart0_dmamask = DMA_BIT_MASK(32);
  1059. static struct platform_device at91sam9263_uart0_device = {
  1060. .name = "atmel_usart",
  1061. .id = 1,
  1062. .dev = {
  1063. .dma_mask = &uart0_dmamask,
  1064. .coherent_dma_mask = DMA_BIT_MASK(32),
  1065. .platform_data = &uart0_data,
  1066. },
  1067. .resource = uart0_resources,
  1068. .num_resources = ARRAY_SIZE(uart0_resources),
  1069. };
  1070. static inline void configure_usart0_pins(unsigned pins)
  1071. {
  1072. at91_set_A_periph(AT91_PIN_PA26, 1); /* TXD0 */
  1073. at91_set_A_periph(AT91_PIN_PA27, 0); /* RXD0 */
  1074. if (pins & ATMEL_UART_RTS)
  1075. at91_set_A_periph(AT91_PIN_PA28, 0); /* RTS0 */
  1076. if (pins & ATMEL_UART_CTS)
  1077. at91_set_A_periph(AT91_PIN_PA29, 0); /* CTS0 */
  1078. }
  1079. static struct resource uart1_resources[] = {
  1080. [0] = {
  1081. .start = AT91SAM9263_BASE_US1,
  1082. .end = AT91SAM9263_BASE_US1 + SZ_16K - 1,
  1083. .flags = IORESOURCE_MEM,
  1084. },
  1085. [1] = {
  1086. .start = AT91SAM9263_ID_US1,
  1087. .end = AT91SAM9263_ID_US1,
  1088. .flags = IORESOURCE_IRQ,
  1089. },
  1090. };
  1091. static struct atmel_uart_data uart1_data = {
  1092. .use_dma_tx = 1,
  1093. .use_dma_rx = 1,
  1094. };
  1095. static u64 uart1_dmamask = DMA_BIT_MASK(32);
  1096. static struct platform_device at91sam9263_uart1_device = {
  1097. .name = "atmel_usart",
  1098. .id = 2,
  1099. .dev = {
  1100. .dma_mask = &uart1_dmamask,
  1101. .coherent_dma_mask = DMA_BIT_MASK(32),
  1102. .platform_data = &uart1_data,
  1103. },
  1104. .resource = uart1_resources,
  1105. .num_resources = ARRAY_SIZE(uart1_resources),
  1106. };
  1107. static inline void configure_usart1_pins(unsigned pins)
  1108. {
  1109. at91_set_A_periph(AT91_PIN_PD0, 1); /* TXD1 */
  1110. at91_set_A_periph(AT91_PIN_PD1, 0); /* RXD1 */
  1111. if (pins & ATMEL_UART_RTS)
  1112. at91_set_B_periph(AT91_PIN_PD7, 0); /* RTS1 */
  1113. if (pins & ATMEL_UART_CTS)
  1114. at91_set_B_periph(AT91_PIN_PD8, 0); /* CTS1 */
  1115. }
  1116. static struct resource uart2_resources[] = {
  1117. [0] = {
  1118. .start = AT91SAM9263_BASE_US2,
  1119. .end = AT91SAM9263_BASE_US2 + SZ_16K - 1,
  1120. .flags = IORESOURCE_MEM,
  1121. },
  1122. [1] = {
  1123. .start = AT91SAM9263_ID_US2,
  1124. .end = AT91SAM9263_ID_US2,
  1125. .flags = IORESOURCE_IRQ,
  1126. },
  1127. };
  1128. static struct atmel_uart_data uart2_data = {
  1129. .use_dma_tx = 1,
  1130. .use_dma_rx = 1,
  1131. };
  1132. static u64 uart2_dmamask = DMA_BIT_MASK(32);
  1133. static struct platform_device at91sam9263_uart2_device = {
  1134. .name = "atmel_usart",
  1135. .id = 3,
  1136. .dev = {
  1137. .dma_mask = &uart2_dmamask,
  1138. .coherent_dma_mask = DMA_BIT_MASK(32),
  1139. .platform_data = &uart2_data,
  1140. },
  1141. .resource = uart2_resources,
  1142. .num_resources = ARRAY_SIZE(uart2_resources),
  1143. };
  1144. static inline void configure_usart2_pins(unsigned pins)
  1145. {
  1146. at91_set_A_periph(AT91_PIN_PD2, 1); /* TXD2 */
  1147. at91_set_A_periph(AT91_PIN_PD3, 0); /* RXD2 */
  1148. if (pins & ATMEL_UART_RTS)
  1149. at91_set_B_periph(AT91_PIN_PD5, 0); /* RTS2 */
  1150. if (pins & ATMEL_UART_CTS)
  1151. at91_set_B_periph(AT91_PIN_PD6, 0); /* CTS2 */
  1152. }
  1153. static struct platform_device *__initdata at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */
  1154. struct platform_device *atmel_default_console_device; /* the serial console device */
  1155. void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
  1156. {
  1157. struct platform_device *pdev;
  1158. struct atmel_uart_data *pdata;
  1159. switch (id) {
  1160. case 0: /* DBGU */
  1161. pdev = &at91sam9263_dbgu_device;
  1162. configure_dbgu_pins();
  1163. break;
  1164. case AT91SAM9263_ID_US0:
  1165. pdev = &at91sam9263_uart0_device;
  1166. configure_usart0_pins(pins);
  1167. break;
  1168. case AT91SAM9263_ID_US1:
  1169. pdev = &at91sam9263_uart1_device;
  1170. configure_usart1_pins(pins);
  1171. break;
  1172. case AT91SAM9263_ID_US2:
  1173. pdev = &at91sam9263_uart2_device;
  1174. configure_usart2_pins(pins);
  1175. break;
  1176. default:
  1177. return;
  1178. }
  1179. pdata = pdev->dev.platform_data;
  1180. pdata->num = portnr; /* update to mapped ID */
  1181. if (portnr < ATMEL_MAX_UART)
  1182. at91_uarts[portnr] = pdev;
  1183. }
  1184. void __init at91_set_serial_console(unsigned portnr)
  1185. {
  1186. if (portnr < ATMEL_MAX_UART) {
  1187. atmel_default_console_device = at91_uarts[portnr];
  1188. at91sam9263_set_console_clock(at91_uarts[portnr]->id);
  1189. }
  1190. }
  1191. void __init at91_add_device_serial(void)
  1192. {
  1193. int i;
  1194. for (i = 0; i < ATMEL_MAX_UART; i++) {
  1195. if (at91_uarts[i])
  1196. platform_device_register(at91_uarts[i]);
  1197. }
  1198. if (!atmel_default_console_device)
  1199. printk(KERN_INFO "AT91: No default serial console defined.\n");
  1200. }
  1201. #else
  1202. void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
  1203. void __init at91_set_serial_console(unsigned portnr) {}
  1204. void __init at91_add_device_serial(void) {}
  1205. #endif
  1206. /* -------------------------------------------------------------------- */
  1207. /*
  1208. * These devices are always present and don't need any board-specific
  1209. * setup.
  1210. */
  1211. static int __init at91_add_standard_devices(void)
  1212. {
  1213. at91_add_device_rtt();
  1214. at91_add_device_watchdog();
  1215. at91_add_device_tc();
  1216. return 0;
  1217. }
  1218. arch_initcall(at91_add_standard_devices);