board-stamp9g20.c 7.0 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319
  1. /*
  2. * Copyright (C) 2010 Christian Glindkamp <christian.glindkamp@taskit.de>
  3. * taskit GmbH
  4. *
  5. * This program is free software; you can redistribute it and/or modify
  6. * it under the terms of the GNU General Public License as published by
  7. * the Free Software Foundation; either version 2 of the License, or
  8. * (at your option) any later version.
  9. *
  10. * This program is distributed in the hope that it will be useful,
  11. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13. * GNU General Public License for more details.
  14. *
  15. * You should have received a copy of the GNU General Public License
  16. * along with this program; if not, write to the Free Software
  17. * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  18. */
  19. #include <linux/mm.h>
  20. #include <linux/platform_device.h>
  21. #include <linux/gpio.h>
  22. #include <linux/w1-gpio.h>
  23. #include <asm/mach-types.h>
  24. #include <asm/mach/arch.h>
  25. #include <mach/board.h>
  26. #include <mach/at91sam9_smc.h>
  27. #include "sam9_smc.h"
  28. #include "generic.h"
  29. void __init stamp9g20_init_early(void)
  30. {
  31. /* Initialize processor: 18.432 MHz crystal */
  32. at91_initialize(18432000);
  33. /* DGBU on ttyS0. (Rx & Tx only) */
  34. at91_register_uart(0, 0, 0);
  35. /* set serial console to ttyS0 (ie, DBGU) */
  36. at91_set_serial_console(0);
  37. }
  38. static void __init stamp9g20evb_init_early(void)
  39. {
  40. stamp9g20_init_early();
  41. /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
  42. at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
  43. | ATMEL_UART_DTR | ATMEL_UART_DSR
  44. | ATMEL_UART_DCD | ATMEL_UART_RI);
  45. }
  46. static void __init portuxg20_init_early(void)
  47. {
  48. stamp9g20_init_early();
  49. /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
  50. at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
  51. | ATMEL_UART_DTR | ATMEL_UART_DSR
  52. | ATMEL_UART_DCD | ATMEL_UART_RI);
  53. /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) */
  54. at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
  55. /* USART2 on ttyS3. (Rx, Tx, CTS, RTS) */
  56. at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS | ATMEL_UART_RTS);
  57. /* USART4 on ttyS5. (Rx, Tx only) */
  58. at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
  59. /* USART5 on ttyS6. (Rx, Tx only) */
  60. at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
  61. }
  62. /*
  63. * NAND flash
  64. */
  65. static struct atmel_nand_data __initdata nand_data = {
  66. .ale = 21,
  67. .cle = 22,
  68. .rdy_pin = AT91_PIN_PC13,
  69. .enable_pin = AT91_PIN_PC14,
  70. .bus_width_16 = 0,
  71. .det_pin = -EINVAL,
  72. .ecc_mode = NAND_ECC_SOFT,
  73. };
  74. static struct sam9_smc_config __initdata nand_smc_config = {
  75. .ncs_read_setup = 0,
  76. .nrd_setup = 2,
  77. .ncs_write_setup = 0,
  78. .nwe_setup = 2,
  79. .ncs_read_pulse = 4,
  80. .nrd_pulse = 4,
  81. .ncs_write_pulse = 4,
  82. .nwe_pulse = 4,
  83. .read_cycle = 7,
  84. .write_cycle = 7,
  85. .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
  86. .tdf_cycles = 3,
  87. };
  88. static void __init add_device_nand(void)
  89. {
  90. /* configure chip-select 3 (NAND) */
  91. sam9_smc_configure(0, 3, &nand_smc_config);
  92. at91_add_device_nand(&nand_data);
  93. }
  94. /*
  95. * MCI (SD/MMC)
  96. * det_pin, wp_pin and vcc_pin are not connected
  97. */
  98. #if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
  99. static struct mci_platform_data __initdata mmc_data = {
  100. .slot[0] = {
  101. .bus_width = 4,
  102. .detect_pin = -1,
  103. .wp_pin = -1,
  104. },
  105. };
  106. #else
  107. static struct at91_mmc_data __initdata mmc_data = {
  108. .slot_b = 0,
  109. .wire4 = 1,
  110. .det_pin = -EINVAL,
  111. .wp_pin = -EINVAL,
  112. .vcc_pin = -EINVAL,
  113. };
  114. #endif
  115. /*
  116. * USB Host port
  117. */
  118. static struct at91_usbh_data __initdata usbh_data = {
  119. .ports = 2,
  120. .vbus_pin = {-EINVAL, -EINVAL},
  121. .overcurrent_pin= {-EINVAL, -EINVAL},
  122. };
  123. /*
  124. * USB Device port
  125. */
  126. static struct at91_udc_data __initdata portuxg20_udc_data = {
  127. .vbus_pin = AT91_PIN_PC7,
  128. .pullup_pin = -EINVAL, /* pull-up driven by UDC */
  129. };
  130. static struct at91_udc_data __initdata stamp9g20evb_udc_data = {
  131. .vbus_pin = AT91_PIN_PA22,
  132. .pullup_pin = -EINVAL, /* pull-up driven by UDC */
  133. };
  134. /*
  135. * MACB Ethernet device
  136. */
  137. static struct macb_platform_data __initdata macb_data = {
  138. .phy_irq_pin = AT91_PIN_PA28,
  139. .is_rmii = 1,
  140. };
  141. /*
  142. * LEDs
  143. */
  144. static struct gpio_led portuxg20_leds[] = {
  145. {
  146. .name = "LED2",
  147. .gpio = AT91_PIN_PC5,
  148. .default_trigger = "none",
  149. }, {
  150. .name = "LED3",
  151. .gpio = AT91_PIN_PC4,
  152. .default_trigger = "none",
  153. }, {
  154. .name = "LED4",
  155. .gpio = AT91_PIN_PC10,
  156. .default_trigger = "heartbeat",
  157. }
  158. };
  159. static struct gpio_led stamp9g20evb_leds[] = {
  160. {
  161. .name = "D8",
  162. .gpio = AT91_PIN_PB18,
  163. .active_low = 1,
  164. .default_trigger = "none",
  165. }, {
  166. .name = "D9",
  167. .gpio = AT91_PIN_PB19,
  168. .active_low = 1,
  169. .default_trigger = "none",
  170. }, {
  171. .name = "D10",
  172. .gpio = AT91_PIN_PB20,
  173. .active_low = 1,
  174. .default_trigger = "heartbeat",
  175. }
  176. };
  177. /*
  178. * SPI devices
  179. */
  180. static struct spi_board_info portuxg20_spi_devices[] = {
  181. {
  182. .modalias = "spidev",
  183. .chip_select = 0,
  184. .max_speed_hz = 1 * 1000 * 1000,
  185. .bus_num = 0,
  186. }, {
  187. .modalias = "spidev",
  188. .chip_select = 0,
  189. .max_speed_hz = 1 * 1000 * 1000,
  190. .bus_num = 1,
  191. },
  192. };
  193. /*
  194. * Dallas 1-Wire
  195. */
  196. static struct w1_gpio_platform_data w1_gpio_pdata = {
  197. .pin = AT91_PIN_PA29,
  198. .is_open_drain = 1,
  199. };
  200. static struct platform_device w1_device = {
  201. .name = "w1-gpio",
  202. .id = -1,
  203. .dev.platform_data = &w1_gpio_pdata,
  204. };
  205. void add_w1(void)
  206. {
  207. at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
  208. at91_set_multi_drive(w1_gpio_pdata.pin, 1);
  209. platform_device_register(&w1_device);
  210. }
  211. void __init stamp9g20_board_init(void)
  212. {
  213. /* Serial */
  214. at91_add_device_serial();
  215. /* NAND */
  216. add_device_nand();
  217. /* MMC */
  218. #if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
  219. at91_add_device_mci(0, &mmc_data);
  220. #else
  221. at91_add_device_mmc(0, &mmc_data);
  222. #endif
  223. /* W1 */
  224. add_w1();
  225. }
  226. static void __init portuxg20_board_init(void)
  227. {
  228. stamp9g20_board_init();
  229. /* USB Host */
  230. at91_add_device_usbh(&usbh_data);
  231. /* USB Device */
  232. at91_add_device_udc(&portuxg20_udc_data);
  233. /* Ethernet */
  234. at91_add_device_eth(&macb_data);
  235. /* I2C */
  236. at91_add_device_i2c(NULL, 0);
  237. /* SPI */
  238. at91_add_device_spi(portuxg20_spi_devices, ARRAY_SIZE(portuxg20_spi_devices));
  239. /* LEDs */
  240. at91_gpio_leds(portuxg20_leds, ARRAY_SIZE(portuxg20_leds));
  241. }
  242. static void __init stamp9g20evb_board_init(void)
  243. {
  244. stamp9g20_board_init();
  245. /* USB Host */
  246. at91_add_device_usbh(&usbh_data);
  247. /* USB Device */
  248. at91_add_device_udc(&stamp9g20evb_udc_data);
  249. /* Ethernet */
  250. at91_add_device_eth(&macb_data);
  251. /* I2C */
  252. at91_add_device_i2c(NULL, 0);
  253. /* LEDs */
  254. at91_gpio_leds(stamp9g20evb_leds, ARRAY_SIZE(stamp9g20evb_leds));
  255. }
  256. MACHINE_START(PORTUXG20, "taskit PortuxG20")
  257. /* Maintainer: taskit GmbH */
  258. .timer = &at91sam926x_timer,
  259. .map_io = at91_map_io,
  260. .init_early = portuxg20_init_early,
  261. .init_irq = at91_init_irq_default,
  262. .init_machine = portuxg20_board_init,
  263. MACHINE_END
  264. MACHINE_START(STAMP9G20, "taskit Stamp9G20")
  265. /* Maintainer: taskit GmbH */
  266. .timer = &at91sam926x_timer,
  267. .map_io = at91_map_io,
  268. .init_early = stamp9g20evb_init_early,
  269. .init_irq = at91_init_irq_default,
  270. .init_machine = stamp9g20evb_board_init,
  271. MACHINE_END