board-omap3beagle.c 15 KB

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  1. /*
  2. * linux/arch/arm/mach-omap2/board-omap3beagle.c
  3. *
  4. * Copyright (C) 2008 Texas Instruments
  5. *
  6. * Modified from mach-omap2/board-3430sdp.c
  7. *
  8. * Initial code: Syed Mohammed Khasim
  9. *
  10. * This program is free software; you can redistribute it and/or modify
  11. * it under the terms of the GNU General Public License version 2 as
  12. * published by the Free Software Foundation.
  13. */
  14. #include <linux/kernel.h>
  15. #include <linux/init.h>
  16. #include <linux/platform_device.h>
  17. #include <linux/delay.h>
  18. #include <linux/err.h>
  19. #include <linux/clk.h>
  20. #include <linux/io.h>
  21. #include <linux/leds.h>
  22. #include <linux/gpio.h>
  23. #include <linux/input.h>
  24. #include <linux/gpio_keys.h>
  25. #include <linux/opp.h>
  26. #include <linux/mtd/mtd.h>
  27. #include <linux/mtd/partitions.h>
  28. #include <linux/mtd/nand.h>
  29. #include <linux/mmc/host.h>
  30. #include <linux/regulator/machine.h>
  31. #include <linux/i2c/twl.h>
  32. #include <mach/hardware.h>
  33. #include <asm/mach-types.h>
  34. #include <asm/mach/arch.h>
  35. #include <asm/mach/map.h>
  36. #include <asm/mach/flash.h>
  37. #include <plat/board.h>
  38. #include <plat/common.h>
  39. #include <plat/display.h>
  40. #include <plat/panel-generic-dpi.h>
  41. #include <plat/gpmc.h>
  42. #include <plat/nand.h>
  43. #include <plat/usb.h>
  44. #include <plat/omap_device.h>
  45. #include "mux.h"
  46. #include "hsmmc.h"
  47. #include "timer-gp.h"
  48. #include "pm.h"
  49. #include "common-board-devices.h"
  50. #define NAND_BLOCK_SIZE SZ_128K
  51. /*
  52. * OMAP3 Beagle revision
  53. * Run time detection of Beagle revision is done by reading GPIO.
  54. * GPIO ID -
  55. * AXBX = GPIO173, GPIO172, GPIO171: 1 1 1
  56. * C1_3 = GPIO173, GPIO172, GPIO171: 1 1 0
  57. * C4 = GPIO173, GPIO172, GPIO171: 1 0 1
  58. * XM = GPIO173, GPIO172, GPIO171: 0 0 0
  59. */
  60. enum {
  61. OMAP3BEAGLE_BOARD_UNKN = 0,
  62. OMAP3BEAGLE_BOARD_AXBX,
  63. OMAP3BEAGLE_BOARD_C1_3,
  64. OMAP3BEAGLE_BOARD_C4,
  65. OMAP3BEAGLE_BOARD_XM,
  66. };
  67. static u8 omap3_beagle_version;
  68. static u8 omap3_beagle_get_rev(void)
  69. {
  70. return omap3_beagle_version;
  71. }
  72. static struct gpio omap3_beagle_rev_gpios[] __initdata = {
  73. { 171, GPIOF_IN, "rev_id_0" },
  74. { 172, GPIOF_IN, "rev_id_1" },
  75. { 173, GPIOF_IN, "rev_id_2" },
  76. };
  77. static void __init omap3_beagle_init_rev(void)
  78. {
  79. int ret;
  80. u16 beagle_rev = 0;
  81. omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP);
  82. omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP);
  83. omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP);
  84. ret = gpio_request_array(omap3_beagle_rev_gpios,
  85. ARRAY_SIZE(omap3_beagle_rev_gpios));
  86. if (ret < 0) {
  87. printk(KERN_ERR "Unable to get revision detection GPIO pins\n");
  88. omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
  89. return;
  90. }
  91. beagle_rev = gpio_get_value(171) | (gpio_get_value(172) << 1)
  92. | (gpio_get_value(173) << 2);
  93. switch (beagle_rev) {
  94. case 7:
  95. printk(KERN_INFO "OMAP3 Beagle Rev: Ax/Bx\n");
  96. omap3_beagle_version = OMAP3BEAGLE_BOARD_AXBX;
  97. break;
  98. case 6:
  99. printk(KERN_INFO "OMAP3 Beagle Rev: C1/C2/C3\n");
  100. omap3_beagle_version = OMAP3BEAGLE_BOARD_C1_3;
  101. break;
  102. case 5:
  103. printk(KERN_INFO "OMAP3 Beagle Rev: C4\n");
  104. omap3_beagle_version = OMAP3BEAGLE_BOARD_C4;
  105. break;
  106. case 0:
  107. printk(KERN_INFO "OMAP3 Beagle Rev: xM\n");
  108. omap3_beagle_version = OMAP3BEAGLE_BOARD_XM;
  109. break;
  110. default:
  111. printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd\n", beagle_rev);
  112. omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
  113. }
  114. }
  115. static struct mtd_partition omap3beagle_nand_partitions[] = {
  116. /* All the partition sizes are listed in terms of NAND block size */
  117. {
  118. .name = "X-Loader",
  119. .offset = 0,
  120. .size = 4 * NAND_BLOCK_SIZE,
  121. .mask_flags = MTD_WRITEABLE, /* force read-only */
  122. },
  123. {
  124. .name = "U-Boot",
  125. .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
  126. .size = 15 * NAND_BLOCK_SIZE,
  127. .mask_flags = MTD_WRITEABLE, /* force read-only */
  128. },
  129. {
  130. .name = "U-Boot Env",
  131. .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
  132. .size = 1 * NAND_BLOCK_SIZE,
  133. },
  134. {
  135. .name = "Kernel",
  136. .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
  137. .size = 32 * NAND_BLOCK_SIZE,
  138. },
  139. {
  140. .name = "File System",
  141. .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
  142. .size = MTDPART_SIZ_FULL,
  143. },
  144. };
  145. /* DSS */
  146. static int beagle_enable_dvi(struct omap_dss_device *dssdev)
  147. {
  148. if (gpio_is_valid(dssdev->reset_gpio))
  149. gpio_set_value(dssdev->reset_gpio, 1);
  150. return 0;
  151. }
  152. static void beagle_disable_dvi(struct omap_dss_device *dssdev)
  153. {
  154. if (gpio_is_valid(dssdev->reset_gpio))
  155. gpio_set_value(dssdev->reset_gpio, 0);
  156. }
  157. static struct panel_generic_dpi_data dvi_panel = {
  158. .name = "generic",
  159. .platform_enable = beagle_enable_dvi,
  160. .platform_disable = beagle_disable_dvi,
  161. };
  162. static struct omap_dss_device beagle_dvi_device = {
  163. .type = OMAP_DISPLAY_TYPE_DPI,
  164. .name = "dvi",
  165. .driver_name = "generic_dpi_panel",
  166. .data = &dvi_panel,
  167. .phy.dpi.data_lines = 24,
  168. .reset_gpio = -EINVAL,
  169. };
  170. static struct omap_dss_device beagle_tv_device = {
  171. .name = "tv",
  172. .driver_name = "venc",
  173. .type = OMAP_DISPLAY_TYPE_VENC,
  174. .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
  175. };
  176. static struct omap_dss_device *beagle_dss_devices[] = {
  177. &beagle_dvi_device,
  178. &beagle_tv_device,
  179. };
  180. static struct omap_dss_board_info beagle_dss_data = {
  181. .num_devices = ARRAY_SIZE(beagle_dss_devices),
  182. .devices = beagle_dss_devices,
  183. .default_device = &beagle_dvi_device,
  184. };
  185. static struct regulator_consumer_supply beagle_vdac_supply =
  186. REGULATOR_SUPPLY("vdda_dac", "omapdss_venc");
  187. static struct regulator_consumer_supply beagle_vdvi_supplies[] = {
  188. REGULATOR_SUPPLY("vdds_dsi", "omapdss"),
  189. REGULATOR_SUPPLY("vdds_dsi", "omapdss_dsi1"),
  190. };
  191. static void __init beagle_display_init(void)
  192. {
  193. int r;
  194. r = gpio_request_one(beagle_dvi_device.reset_gpio, GPIOF_OUT_INIT_LOW,
  195. "DVI reset");
  196. if (r < 0)
  197. printk(KERN_ERR "Unable to get DVI reset GPIO\n");
  198. }
  199. #include "sdram-micron-mt46h32m32lf-6.h"
  200. static struct omap2_hsmmc_info mmc[] = {
  201. {
  202. .mmc = 1,
  203. .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
  204. .gpio_wp = 29,
  205. },
  206. {} /* Terminator */
  207. };
  208. static struct regulator_consumer_supply beagle_vmmc1_supply = {
  209. .supply = "vmmc",
  210. };
  211. static struct regulator_consumer_supply beagle_vsim_supply = {
  212. .supply = "vmmc_aux",
  213. };
  214. static struct gpio_led gpio_leds[];
  215. static int beagle_twl_gpio_setup(struct device *dev,
  216. unsigned gpio, unsigned ngpio)
  217. {
  218. int r, usb_pwr_level;
  219. if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
  220. mmc[0].gpio_wp = -EINVAL;
  221. } else if ((omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C1_3) ||
  222. (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C4)) {
  223. omap_mux_init_gpio(23, OMAP_PIN_INPUT);
  224. mmc[0].gpio_wp = 23;
  225. } else {
  226. omap_mux_init_gpio(29, OMAP_PIN_INPUT);
  227. }
  228. /* gpio + 0 is "mmc0_cd" (input/IRQ) */
  229. mmc[0].gpio_cd = gpio + 0;
  230. omap2_hsmmc_init(mmc);
  231. /* link regulators to MMC adapters */
  232. beagle_vmmc1_supply.dev = mmc[0].dev;
  233. beagle_vsim_supply.dev = mmc[0].dev;
  234. /*
  235. * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
  236. * high / others active low)
  237. * DVI reset GPIO is different between beagle revisions
  238. */
  239. if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
  240. usb_pwr_level = GPIOF_OUT_INIT_HIGH;
  241. beagle_dvi_device.reset_gpio = 129;
  242. /*
  243. * gpio + 1 on Xm controls the TFP410's enable line (active low)
  244. * gpio + 2 control varies depending on the board rev as below:
  245. * P7/P8 revisions(prototype): Camera EN
  246. * A2+ revisions (production): LDO (DVI, serial, led blocks)
  247. */
  248. r = gpio_request_one(gpio + 1, GPIOF_OUT_INIT_LOW,
  249. "nDVI_PWR_EN");
  250. if (r)
  251. pr_err("%s: unable to configure nDVI_PWR_EN\n",
  252. __func__);
  253. r = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH,
  254. "DVI_LDO_EN");
  255. if (r)
  256. pr_err("%s: unable to configure DVI_LDO_EN\n",
  257. __func__);
  258. } else {
  259. usb_pwr_level = GPIOF_OUT_INIT_LOW;
  260. beagle_dvi_device.reset_gpio = 170;
  261. /*
  262. * REVISIT: need ehci-omap hooks for external VBUS
  263. * power switch and overcurrent detect
  264. */
  265. if (gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC"))
  266. pr_err("%s: unable to configure EHCI_nOC\n", __func__);
  267. }
  268. gpio_request_one(gpio + TWL4030_GPIO_MAX, usb_pwr_level, "nEN_USB_PWR");
  269. /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
  270. gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
  271. return 0;
  272. }
  273. static struct twl4030_gpio_platform_data beagle_gpio_data = {
  274. .gpio_base = OMAP_MAX_GPIO_LINES,
  275. .irq_base = TWL4030_GPIO_IRQ_BASE,
  276. .irq_end = TWL4030_GPIO_IRQ_END,
  277. .use_leds = true,
  278. .pullups = BIT(1),
  279. .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
  280. | BIT(15) | BIT(16) | BIT(17),
  281. .setup = beagle_twl_gpio_setup,
  282. };
  283. /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
  284. static struct regulator_init_data beagle_vmmc1 = {
  285. .constraints = {
  286. .min_uV = 1850000,
  287. .max_uV = 3150000,
  288. .valid_modes_mask = REGULATOR_MODE_NORMAL
  289. | REGULATOR_MODE_STANDBY,
  290. .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
  291. | REGULATOR_CHANGE_MODE
  292. | REGULATOR_CHANGE_STATUS,
  293. },
  294. .num_consumer_supplies = 1,
  295. .consumer_supplies = &beagle_vmmc1_supply,
  296. };
  297. /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
  298. static struct regulator_init_data beagle_vsim = {
  299. .constraints = {
  300. .min_uV = 1800000,
  301. .max_uV = 3000000,
  302. .valid_modes_mask = REGULATOR_MODE_NORMAL
  303. | REGULATOR_MODE_STANDBY,
  304. .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
  305. | REGULATOR_CHANGE_MODE
  306. | REGULATOR_CHANGE_STATUS,
  307. },
  308. .num_consumer_supplies = 1,
  309. .consumer_supplies = &beagle_vsim_supply,
  310. };
  311. /* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
  312. static struct regulator_init_data beagle_vdac = {
  313. .constraints = {
  314. .min_uV = 1800000,
  315. .max_uV = 1800000,
  316. .valid_modes_mask = REGULATOR_MODE_NORMAL
  317. | REGULATOR_MODE_STANDBY,
  318. .valid_ops_mask = REGULATOR_CHANGE_MODE
  319. | REGULATOR_CHANGE_STATUS,
  320. },
  321. .num_consumer_supplies = 1,
  322. .consumer_supplies = &beagle_vdac_supply,
  323. };
  324. /* VPLL2 for digital video outputs */
  325. static struct regulator_init_data beagle_vpll2 = {
  326. .constraints = {
  327. .name = "VDVI",
  328. .min_uV = 1800000,
  329. .max_uV = 1800000,
  330. .valid_modes_mask = REGULATOR_MODE_NORMAL
  331. | REGULATOR_MODE_STANDBY,
  332. .valid_ops_mask = REGULATOR_CHANGE_MODE
  333. | REGULATOR_CHANGE_STATUS,
  334. },
  335. .num_consumer_supplies = ARRAY_SIZE(beagle_vdvi_supplies),
  336. .consumer_supplies = beagle_vdvi_supplies,
  337. };
  338. static struct twl4030_usb_data beagle_usb_data = {
  339. .usb_mode = T2_USB_MODE_ULPI,
  340. };
  341. static struct twl4030_codec_audio_data beagle_audio_data;
  342. static struct twl4030_codec_data beagle_codec_data = {
  343. .audio_mclk = 26000000,
  344. .audio = &beagle_audio_data,
  345. };
  346. static struct twl4030_platform_data beagle_twldata = {
  347. .irq_base = TWL4030_IRQ_BASE,
  348. .irq_end = TWL4030_IRQ_END,
  349. /* platform_data for children goes here */
  350. .usb = &beagle_usb_data,
  351. .gpio = &beagle_gpio_data,
  352. .codec = &beagle_codec_data,
  353. .vmmc1 = &beagle_vmmc1,
  354. .vsim = &beagle_vsim,
  355. .vdac = &beagle_vdac,
  356. .vpll2 = &beagle_vpll2,
  357. };
  358. static struct i2c_board_info __initdata beagle_i2c_eeprom[] = {
  359. {
  360. I2C_BOARD_INFO("eeprom", 0x50),
  361. },
  362. };
  363. static int __init omap3_beagle_i2c_init(void)
  364. {
  365. omap3_pmic_init("twl4030", &beagle_twldata);
  366. /* Bus 3 is attached to the DVI port where devices like the pico DLP
  367. * projector don't work reliably with 400kHz */
  368. omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom));
  369. return 0;
  370. }
  371. static struct gpio_led gpio_leds[] = {
  372. {
  373. .name = "beagleboard::usr0",
  374. .default_trigger = "heartbeat",
  375. .gpio = 150,
  376. },
  377. {
  378. .name = "beagleboard::usr1",
  379. .default_trigger = "mmc0",
  380. .gpio = 149,
  381. },
  382. {
  383. .name = "beagleboard::pmu_stat",
  384. .gpio = -EINVAL, /* gets replaced */
  385. .active_low = true,
  386. },
  387. };
  388. static struct gpio_led_platform_data gpio_led_info = {
  389. .leds = gpio_leds,
  390. .num_leds = ARRAY_SIZE(gpio_leds),
  391. };
  392. static struct platform_device leds_gpio = {
  393. .name = "leds-gpio",
  394. .id = -1,
  395. .dev = {
  396. .platform_data = &gpio_led_info,
  397. },
  398. };
  399. static struct gpio_keys_button gpio_buttons[] = {
  400. {
  401. .code = BTN_EXTRA,
  402. .gpio = 7,
  403. .desc = "user",
  404. .wakeup = 1,
  405. },
  406. };
  407. static struct gpio_keys_platform_data gpio_key_info = {
  408. .buttons = gpio_buttons,
  409. .nbuttons = ARRAY_SIZE(gpio_buttons),
  410. };
  411. static struct platform_device keys_gpio = {
  412. .name = "gpio-keys",
  413. .id = -1,
  414. .dev = {
  415. .platform_data = &gpio_key_info,
  416. },
  417. };
  418. static void __init omap3_beagle_init_early(void)
  419. {
  420. omap2_init_common_infrastructure();
  421. omap2_init_common_devices(mt46h32m32lf6_sdrc_params,
  422. mt46h32m32lf6_sdrc_params);
  423. }
  424. static void __init omap3_beagle_init_irq(void)
  425. {
  426. omap_init_irq();
  427. #ifdef CONFIG_OMAP_32K_TIMER
  428. omap2_gp_clockevent_set_gptimer(12);
  429. #endif
  430. }
  431. static struct platform_device *omap3_beagle_devices[] __initdata = {
  432. &leds_gpio,
  433. &keys_gpio,
  434. };
  435. static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
  436. .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
  437. .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
  438. .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
  439. .phy_reset = true,
  440. .reset_gpio_port[0] = -EINVAL,
  441. .reset_gpio_port[1] = 147,
  442. .reset_gpio_port[2] = -EINVAL
  443. };
  444. #ifdef CONFIG_OMAP_MUX
  445. static struct omap_board_mux board_mux[] __initdata = {
  446. { .reg_offset = OMAP_MUX_TERMINATOR },
  447. };
  448. #endif
  449. static void __init beagle_opp_init(void)
  450. {
  451. int r = 0;
  452. /* Initialize the omap3 opp table */
  453. if (omap3_opp_init()) {
  454. pr_err("%s: opp default init failed\n", __func__);
  455. return;
  456. }
  457. /* Custom OPP enabled for XM */
  458. if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
  459. struct omap_hwmod *mh = omap_hwmod_lookup("mpu");
  460. struct omap_hwmod *dh = omap_hwmod_lookup("iva");
  461. struct device *dev;
  462. if (!mh || !dh) {
  463. pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
  464. __func__, mh, dh);
  465. return;
  466. }
  467. /* Enable MPU 1GHz and lower opps */
  468. dev = &mh->od->pdev.dev;
  469. r = opp_enable(dev, 800000000);
  470. /* TODO: MPU 1GHz needs SR and ABB */
  471. /* Enable IVA 800MHz and lower opps */
  472. dev = &dh->od->pdev.dev;
  473. r |= opp_enable(dev, 660000000);
  474. /* TODO: DSP 800MHz needs SR and ABB */
  475. if (r) {
  476. pr_err("%s: failed to enable higher opp %d\n",
  477. __func__, r);
  478. /*
  479. * Cleanup - disable the higher freqs - we dont care
  480. * about the results
  481. */
  482. dev = &mh->od->pdev.dev;
  483. opp_disable(dev, 800000000);
  484. dev = &dh->od->pdev.dev;
  485. opp_disable(dev, 660000000);
  486. }
  487. }
  488. return;
  489. }
  490. static void __init omap3_beagle_init(void)
  491. {
  492. omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
  493. omap3_beagle_init_rev();
  494. omap3_beagle_i2c_init();
  495. platform_add_devices(omap3_beagle_devices,
  496. ARRAY_SIZE(omap3_beagle_devices));
  497. omap_display_init(&beagle_dss_data);
  498. omap_serial_init();
  499. omap_mux_init_gpio(170, OMAP_PIN_INPUT);
  500. /* REVISIT leave DVI powered down until it's needed ... */
  501. gpio_request_one(170, GPIOF_OUT_INIT_HIGH, "DVI_nPD");
  502. usb_musb_init(NULL);
  503. usbhs_init(&usbhs_bdata);
  504. omap_nand_flash_init(NAND_BUSWIDTH_16, omap3beagle_nand_partitions,
  505. ARRAY_SIZE(omap3beagle_nand_partitions));
  506. /* Ensure SDRC pins are mux'd for self-refresh */
  507. omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
  508. omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
  509. beagle_display_init();
  510. beagle_opp_init();
  511. }
  512. MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
  513. /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
  514. .boot_params = 0x80000100,
  515. .reserve = omap_reserve,
  516. .map_io = omap3_map_io,
  517. .init_early = omap3_beagle_init_early,
  518. .init_irq = omap3_beagle_init_irq,
  519. .init_machine = omap3_beagle_init,
  520. .timer = &omap_timer,
  521. MACHINE_END