board-am3517evm.c 9.8 KB

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  1. /*
  2. * linux/arch/arm/mach-omap2/board-am3517evm.c
  3. *
  4. * Copyright (C) 2009 Texas Instruments Incorporated
  5. * Author: Ranjith Lohithakshan <ranjithl@ti.com>
  6. *
  7. * Based on mach-omap2/board-omap3evm.c
  8. *
  9. * This program is free software; you can redistribute it and/or modify it
  10. * under the terms of the GNU General Public License as published by the
  11. * Free Software Foundation version 2.
  12. *
  13. * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
  14. * whether express or implied; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16. * General Public License for more details.
  17. */
  18. #include <linux/kernel.h>
  19. #include <linux/init.h>
  20. #include <linux/clk.h>
  21. #include <linux/platform_device.h>
  22. #include <linux/gpio.h>
  23. #include <linux/i2c/pca953x.h>
  24. #include <linux/can/platform/ti_hecc.h>
  25. #include <linux/davinci_emac.h>
  26. #include <linux/mmc/host.h>
  27. #include <linux/platform_data/gpio-omap.h>
  28. #include "am35xx.h"
  29. #include <asm/mach-types.h>
  30. #include <asm/mach/arch.h>
  31. #include <asm/mach/map.h>
  32. #include "common.h"
  33. #include <plat/usb.h>
  34. #include <video/omapdss.h>
  35. #include <video/omap-panel-generic-dpi.h>
  36. #include <video/omap-panel-tfp410.h>
  37. #include "am35xx-emac.h"
  38. #include "mux.h"
  39. #include "control.h"
  40. #include "hsmmc.h"
  41. #define LCD_PANEL_PWR 176
  42. #define LCD_PANEL_BKLIGHT_PWR 182
  43. #define LCD_PANEL_PWM 181
  44. static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo[] = {
  45. {
  46. I2C_BOARD_INFO("s35390a", 0x30),
  47. },
  48. };
  49. /*
  50. * RTC - S35390A
  51. */
  52. #define GPIO_RTCS35390A_IRQ 55
  53. static void __init am3517_evm_rtc_init(void)
  54. {
  55. int r;
  56. omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
  57. r = gpio_request_one(GPIO_RTCS35390A_IRQ, GPIOF_IN, "rtcs35390a-irq");
  58. if (r < 0) {
  59. printk(KERN_WARNING "failed to request GPIO#%d\n",
  60. GPIO_RTCS35390A_IRQ);
  61. return;
  62. }
  63. am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
  64. }
  65. /*
  66. * I2C GPIO Expander - TCA6416
  67. */
  68. /* Mounted on Base-Board */
  69. static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
  70. .gpio_base = OMAP_MAX_GPIO_LINES,
  71. };
  72. static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = {
  73. {
  74. I2C_BOARD_INFO("tlv320aic23", 0x1A),
  75. },
  76. {
  77. I2C_BOARD_INFO("tca6416", 0x21),
  78. .platform_data = &am3517evm_gpio_expander_info_0,
  79. },
  80. };
  81. /* Mounted on UI Card */
  82. static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
  83. .gpio_base = OMAP_MAX_GPIO_LINES + 16,
  84. };
  85. static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
  86. .gpio_base = OMAP_MAX_GPIO_LINES + 32,
  87. };
  88. static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo[] = {
  89. {
  90. I2C_BOARD_INFO("tca6416", 0x20),
  91. .platform_data = &am3517evm_ui_gpio_expander_info_1,
  92. },
  93. {
  94. I2C_BOARD_INFO("tca6416", 0x21),
  95. .platform_data = &am3517evm_ui_gpio_expander_info_2,
  96. },
  97. };
  98. static int __init am3517_evm_i2c_init(void)
  99. {
  100. omap_register_i2c_bus(1, 400, NULL, 0);
  101. omap_register_i2c_bus(2, 400, am3517evm_i2c2_boardinfo,
  102. ARRAY_SIZE(am3517evm_i2c2_boardinfo));
  103. omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo,
  104. ARRAY_SIZE(am3517evm_i2c3_boardinfo));
  105. return 0;
  106. }
  107. static int lcd_enabled;
  108. static int dvi_enabled;
  109. #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
  110. defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
  111. static struct gpio am3517_evm_dss_gpios[] __initdata = {
  112. /* GPIO 182 = LCD Backlight Power */
  113. { LCD_PANEL_BKLIGHT_PWR, GPIOF_OUT_INIT_HIGH, "lcd_backlight_pwr" },
  114. /* GPIO 181 = LCD Panel PWM */
  115. { LCD_PANEL_PWM, GPIOF_OUT_INIT_HIGH, "lcd bl enable" },
  116. /* GPIO 176 = LCD Panel Power enable pin */
  117. { LCD_PANEL_PWR, GPIOF_OUT_INIT_HIGH, "dvi enable" },
  118. };
  119. static void __init am3517_evm_display_init(void)
  120. {
  121. int r;
  122. omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
  123. omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
  124. omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
  125. r = gpio_request_array(am3517_evm_dss_gpios,
  126. ARRAY_SIZE(am3517_evm_dss_gpios));
  127. if (r) {
  128. printk(KERN_ERR "failed to get DSS panel control GPIOs\n");
  129. return;
  130. }
  131. printk(KERN_INFO "Display initialized successfully\n");
  132. }
  133. #else
  134. static void __init am3517_evm_display_init(void) {}
  135. #endif
  136. static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
  137. {
  138. if (dvi_enabled) {
  139. printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
  140. return -EINVAL;
  141. }
  142. gpio_set_value(LCD_PANEL_PWR, 1);
  143. lcd_enabled = 1;
  144. return 0;
  145. }
  146. static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
  147. {
  148. gpio_set_value(LCD_PANEL_PWR, 0);
  149. lcd_enabled = 0;
  150. }
  151. static struct panel_generic_dpi_data lcd_panel = {
  152. .name = "sharp_lq",
  153. .platform_enable = am3517_evm_panel_enable_lcd,
  154. .platform_disable = am3517_evm_panel_disable_lcd,
  155. };
  156. static struct omap_dss_device am3517_evm_lcd_device = {
  157. .type = OMAP_DISPLAY_TYPE_DPI,
  158. .name = "lcd",
  159. .driver_name = "generic_dpi_panel",
  160. .data = &lcd_panel,
  161. .phy.dpi.data_lines = 16,
  162. };
  163. static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
  164. {
  165. return 0;
  166. }
  167. static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
  168. {
  169. }
  170. static struct omap_dss_device am3517_evm_tv_device = {
  171. .type = OMAP_DISPLAY_TYPE_VENC,
  172. .name = "tv",
  173. .driver_name = "venc",
  174. .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
  175. .platform_enable = am3517_evm_panel_enable_tv,
  176. .platform_disable = am3517_evm_panel_disable_tv,
  177. };
  178. static struct tfp410_platform_data dvi_panel = {
  179. .power_down_gpio = -1,
  180. };
  181. static struct omap_dss_device am3517_evm_dvi_device = {
  182. .type = OMAP_DISPLAY_TYPE_DPI,
  183. .name = "dvi",
  184. .driver_name = "tfp410",
  185. .data = &dvi_panel,
  186. .phy.dpi.data_lines = 24,
  187. };
  188. static struct omap_dss_device *am3517_evm_dss_devices[] = {
  189. &am3517_evm_lcd_device,
  190. &am3517_evm_tv_device,
  191. &am3517_evm_dvi_device,
  192. };
  193. static struct omap_dss_board_info am3517_evm_dss_data = {
  194. .num_devices = ARRAY_SIZE(am3517_evm_dss_devices),
  195. .devices = am3517_evm_dss_devices,
  196. .default_device = &am3517_evm_lcd_device,
  197. };
  198. /*
  199. * Board initialization
  200. */
  201. static struct omap_musb_board_data musb_board_data = {
  202. .interface_type = MUSB_INTERFACE_ULPI,
  203. .mode = MUSB_OTG,
  204. .power = 500,
  205. .set_phy_power = am35x_musb_phy_power,
  206. .clear_irq = am35x_musb_clear_irq,
  207. .set_mode = am35x_set_mode,
  208. .reset = am35x_musb_reset,
  209. };
  210. static __init void am3517_evm_musb_init(void)
  211. {
  212. u32 devconf2;
  213. /*
  214. * Set up USB clock/mode in the DEVCONF2 register.
  215. */
  216. devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
  217. /* USB2.0 PHY reference clock is 13 MHz */
  218. devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
  219. devconf2 |= CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
  220. | CONF2_DATPOL;
  221. omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
  222. usb_musb_init(&musb_board_data);
  223. }
  224. static __init void am3517_evm_mcbsp1_init(void)
  225. {
  226. u32 devconf0;
  227. /* McBSP1 CLKR/FSR signal to be connected to CLKX/FSX pin */
  228. devconf0 = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
  229. devconf0 |= OMAP2_MCBSP1_CLKR_MASK | OMAP2_MCBSP1_FSR_MASK;
  230. omap_ctrl_writel(devconf0, OMAP2_CONTROL_DEVCONF0);
  231. }
  232. static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
  233. .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
  234. #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
  235. defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
  236. .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
  237. #else
  238. .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
  239. #endif
  240. .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
  241. .phy_reset = true,
  242. .reset_gpio_port[0] = 57,
  243. .reset_gpio_port[1] = -EINVAL,
  244. .reset_gpio_port[2] = -EINVAL
  245. };
  246. #ifdef CONFIG_OMAP_MUX
  247. static struct omap_board_mux board_mux[] __initdata = {
  248. /* USB OTG DRVVBUS offset = 0x212 */
  249. OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
  250. { .reg_offset = OMAP_MUX_TERMINATOR },
  251. };
  252. #endif
  253. static struct resource am3517_hecc_resources[] = {
  254. {
  255. .start = AM35XX_IPSS_HECC_BASE,
  256. .end = AM35XX_IPSS_HECC_BASE + 0x3FFF,
  257. .flags = IORESOURCE_MEM,
  258. },
  259. {
  260. .start = 24 + OMAP_INTC_START,
  261. .flags = IORESOURCE_IRQ,
  262. },
  263. };
  264. static struct platform_device am3517_hecc_device = {
  265. .name = "ti_hecc",
  266. .id = -1,
  267. .num_resources = ARRAY_SIZE(am3517_hecc_resources),
  268. .resource = am3517_hecc_resources,
  269. };
  270. static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
  271. .scc_hecc_offset = AM35XX_HECC_SCC_HECC_OFFSET,
  272. .scc_ram_offset = AM35XX_HECC_SCC_RAM_OFFSET,
  273. .hecc_ram_offset = AM35XX_HECC_RAM_OFFSET,
  274. .mbx_offset = AM35XX_HECC_MBOX_OFFSET,
  275. .int_line = AM35XX_HECC_INT_LINE,
  276. .version = AM35XX_HECC_VERSION,
  277. };
  278. static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
  279. {
  280. am3517_hecc_device.dev.platform_data = pdata;
  281. platform_device_register(&am3517_hecc_device);
  282. }
  283. static struct omap2_hsmmc_info mmc[] = {
  284. {
  285. .mmc = 1,
  286. .caps = MMC_CAP_4_BIT_DATA,
  287. .gpio_cd = 127,
  288. .gpio_wp = 126,
  289. },
  290. {
  291. .mmc = 2,
  292. .caps = MMC_CAP_4_BIT_DATA,
  293. .gpio_cd = 128,
  294. .gpio_wp = 129,
  295. },
  296. {} /* Terminator */
  297. };
  298. static void __init am3517_evm_init(void)
  299. {
  300. omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
  301. am3517_evm_i2c_init();
  302. omap_display_init(&am3517_evm_dss_data);
  303. omap_serial_init();
  304. omap_sdrc_init(NULL, NULL);
  305. /* Configure GPIO for EHCI port */
  306. omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
  307. usbhs_init(&usbhs_bdata);
  308. am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
  309. /* DSS */
  310. am3517_evm_display_init();
  311. /* RTC - S35390A */
  312. am3517_evm_rtc_init();
  313. i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
  314. ARRAY_SIZE(am3517evm_i2c1_boardinfo));
  315. /*Ethernet*/
  316. am35xx_emac_init(AM35XX_DEFAULT_MDIO_FREQUENCY, 1);
  317. /* MUSB */
  318. am3517_evm_musb_init();
  319. /* McBSP1 */
  320. am3517_evm_mcbsp1_init();
  321. /* MMC init function */
  322. omap_hsmmc_init(mmc);
  323. }
  324. MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
  325. .atag_offset = 0x100,
  326. .reserve = omap_reserve,
  327. .map_io = omap3_map_io,
  328. .init_early = am35xx_init_early,
  329. .init_irq = omap3_init_irq,
  330. .handle_irq = omap3_intc_handle_irq,
  331. .init_machine = am3517_evm_init,
  332. .init_late = am35xx_init_late,
  333. .timer = &omap3_timer,
  334. .restart = omap_prcm_restart,
  335. MACHINE_END