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/pwm.h>
  23. #include <linux/leds_pwm.h>
  24. #include <linux/gpio.h>
  25. #include <linux/input.h>
  26. #include <linux/gpio_keys.h>
  27. #include <linux/pm_opp.h>
  28. #include <linux/cpu.h>
  29. #include <linux/mtd/mtd.h>
  30. #include <linux/mtd/partitions.h>
  31. #include <linux/mtd/nand.h>
  32. #include <linux/mmc/host.h>
  33. #include <linux/usb/phy.h>
  34. #include <linux/usb/usb_phy_gen_xceiv.h>
  35. #include <linux/regulator/machine.h>
  36. #include <linux/i2c/twl.h>
  37. #include <asm/mach-types.h>
  38. #include <asm/mach/arch.h>
  39. #include <asm/mach/map.h>
  40. #include <asm/mach/flash.h>
  41. #include <video/omapdss.h>
  42. #include <video/omap-panel-data.h>
  43. #include <linux/platform_data/mtd-nand-omap2.h>
  44. #include "common.h"
  45. #include "omap_device.h"
  46. #include "gpmc.h"
  47. #include "soc.h"
  48. #include "mux.h"
  49. #include "hsmmc.h"
  50. #include "pm.h"
  51. #include "board-flash.h"
  52. #include "common-board-devices.h"
  53. #define NAND_CS 0
  54. static struct pwm_lookup pwm_lookup[] = {
  55. /* LEDB -> PMU_STAT */
  56. PWM_LOOKUP("twl-pwmled", 1, "leds_pwm", "beagleboard::pmu_stat"),
  57. };
  58. static struct led_pwm pwm_leds[] = {
  59. {
  60. .name = "beagleboard::pmu_stat",
  61. .max_brightness = 127,
  62. .pwm_period_ns = 7812500,
  63. },
  64. };
  65. static struct led_pwm_platform_data pwm_data = {
  66. .num_leds = ARRAY_SIZE(pwm_leds),
  67. .leds = pwm_leds,
  68. };
  69. static struct platform_device leds_pwm = {
  70. .name = "leds_pwm",
  71. .id = -1,
  72. .dev = {
  73. .platform_data = &pwm_data,
  74. },
  75. };
  76. /*
  77. * OMAP3 Beagle revision
  78. * Run time detection of Beagle revision is done by reading GPIO.
  79. * GPIO ID -
  80. * AXBX = GPIO173, GPIO172, GPIO171: 1 1 1
  81. * C1_3 = GPIO173, GPIO172, GPIO171: 1 1 0
  82. * C4 = GPIO173, GPIO172, GPIO171: 1 0 1
  83. * XMA/XMB = GPIO173, GPIO172, GPIO171: 0 0 0
  84. * XMC = GPIO173, GPIO172, GPIO171: 0 1 0
  85. */
  86. enum {
  87. OMAP3BEAGLE_BOARD_UNKN = 0,
  88. OMAP3BEAGLE_BOARD_AXBX,
  89. OMAP3BEAGLE_BOARD_C1_3,
  90. OMAP3BEAGLE_BOARD_C4,
  91. OMAP3BEAGLE_BOARD_XM,
  92. OMAP3BEAGLE_BOARD_XMC,
  93. };
  94. static u8 omap3_beagle_version;
  95. /*
  96. * Board-specific configuration
  97. * Defaults to BeagleBoard-xMC
  98. */
  99. static struct {
  100. int mmc1_gpio_wp;
  101. bool usb_pwr_level; /* 0 - Active Low, 1 - Active High */
  102. int dvi_pd_gpio;
  103. int usr_button_gpio;
  104. int mmc_caps;
  105. } beagle_config = {
  106. .mmc1_gpio_wp = -EINVAL,
  107. .usb_pwr_level = 0,
  108. .dvi_pd_gpio = -EINVAL,
  109. .usr_button_gpio = 4,
  110. .mmc_caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
  111. };
  112. static struct gpio omap3_beagle_rev_gpios[] __initdata = {
  113. { 171, GPIOF_IN, "rev_id_0" },
  114. { 172, GPIOF_IN, "rev_id_1" },
  115. { 173, GPIOF_IN, "rev_id_2" },
  116. };
  117. static void __init omap3_beagle_init_rev(void)
  118. {
  119. int ret;
  120. u16 beagle_rev = 0;
  121. omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP);
  122. omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP);
  123. omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP);
  124. ret = gpio_request_array(omap3_beagle_rev_gpios,
  125. ARRAY_SIZE(omap3_beagle_rev_gpios));
  126. if (ret < 0) {
  127. printk(KERN_ERR "Unable to get revision detection GPIO pins\n");
  128. omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
  129. return;
  130. }
  131. beagle_rev = gpio_get_value(171) | (gpio_get_value(172) << 1)
  132. | (gpio_get_value(173) << 2);
  133. gpio_free_array(omap3_beagle_rev_gpios,
  134. ARRAY_SIZE(omap3_beagle_rev_gpios));
  135. switch (beagle_rev) {
  136. case 7:
  137. printk(KERN_INFO "OMAP3 Beagle Rev: Ax/Bx\n");
  138. omap3_beagle_version = OMAP3BEAGLE_BOARD_AXBX;
  139. beagle_config.mmc1_gpio_wp = 29;
  140. beagle_config.dvi_pd_gpio = 170;
  141. beagle_config.usr_button_gpio = 7;
  142. break;
  143. case 6:
  144. printk(KERN_INFO "OMAP3 Beagle Rev: C1/C2/C3\n");
  145. omap3_beagle_version = OMAP3BEAGLE_BOARD_C1_3;
  146. beagle_config.mmc1_gpio_wp = 23;
  147. beagle_config.dvi_pd_gpio = 170;
  148. beagle_config.usr_button_gpio = 7;
  149. break;
  150. case 5:
  151. printk(KERN_INFO "OMAP3 Beagle Rev: C4\n");
  152. omap3_beagle_version = OMAP3BEAGLE_BOARD_C4;
  153. beagle_config.mmc1_gpio_wp = 23;
  154. beagle_config.dvi_pd_gpio = 170;
  155. beagle_config.usr_button_gpio = 7;
  156. break;
  157. case 0:
  158. printk(KERN_INFO "OMAP3 Beagle Rev: xM Ax/Bx\n");
  159. omap3_beagle_version = OMAP3BEAGLE_BOARD_XM;
  160. beagle_config.usb_pwr_level = 1;
  161. beagle_config.mmc_caps &= ~MMC_CAP_8_BIT_DATA;
  162. break;
  163. case 2:
  164. printk(KERN_INFO "OMAP3 Beagle Rev: xM C\n");
  165. omap3_beagle_version = OMAP3BEAGLE_BOARD_XMC;
  166. beagle_config.mmc_caps &= ~MMC_CAP_8_BIT_DATA;
  167. break;
  168. default:
  169. printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd\n", beagle_rev);
  170. omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
  171. }
  172. }
  173. static struct mtd_partition omap3beagle_nand_partitions[] = {
  174. /* All the partition sizes are listed in terms of NAND block size */
  175. {
  176. .name = "X-Loader",
  177. .offset = 0,
  178. .size = 4 * NAND_BLOCK_SIZE,
  179. .mask_flags = MTD_WRITEABLE, /* force read-only */
  180. },
  181. {
  182. .name = "U-Boot",
  183. .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
  184. .size = 15 * NAND_BLOCK_SIZE,
  185. .mask_flags = MTD_WRITEABLE, /* force read-only */
  186. },
  187. {
  188. .name = "U-Boot Env",
  189. .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
  190. .size = 1 * NAND_BLOCK_SIZE,
  191. },
  192. {
  193. .name = "Kernel",
  194. .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
  195. .size = 32 * NAND_BLOCK_SIZE,
  196. },
  197. {
  198. .name = "File System",
  199. .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
  200. .size = MTDPART_SIZ_FULL,
  201. },
  202. };
  203. /* DSS */
  204. static struct connector_dvi_platform_data beagle_dvi_connector_pdata = {
  205. .name = "dvi",
  206. .source = "tfp410.0",
  207. .i2c_bus_num = 3,
  208. };
  209. static struct platform_device beagle_dvi_connector_device = {
  210. .name = "connector-dvi",
  211. .id = 0,
  212. .dev.platform_data = &beagle_dvi_connector_pdata,
  213. };
  214. static struct encoder_tfp410_platform_data beagle_tfp410_pdata = {
  215. .name = "tfp410.0",
  216. .source = "dpi.0",
  217. .data_lines = 24,
  218. .power_down_gpio = -1,
  219. };
  220. static struct platform_device beagle_tfp410_device = {
  221. .name = "tfp410",
  222. .id = 0,
  223. .dev.platform_data = &beagle_tfp410_pdata,
  224. };
  225. static struct connector_atv_platform_data beagle_tv_pdata = {
  226. .name = "tv",
  227. .source = "venc.0",
  228. .connector_type = OMAP_DSS_VENC_TYPE_SVIDEO,
  229. .invert_polarity = false,
  230. };
  231. static struct platform_device beagle_tv_connector_device = {
  232. .name = "connector-analog-tv",
  233. .id = 0,
  234. .dev.platform_data = &beagle_tv_pdata,
  235. };
  236. static struct omap_dss_board_info beagle_dss_data = {
  237. .default_display_name = "dvi",
  238. };
  239. #include "sdram-micron-mt46h32m32lf-6.h"
  240. static struct omap2_hsmmc_info mmc[] = {
  241. {
  242. .mmc = 1,
  243. .caps = MMC_CAP_4_BIT_DATA,
  244. .gpio_wp = -EINVAL,
  245. .deferred = true,
  246. },
  247. {} /* Terminator */
  248. };
  249. static struct regulator_consumer_supply beagle_vmmc1_supply[] = {
  250. REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
  251. };
  252. static struct regulator_consumer_supply beagle_vsim_supply[] = {
  253. REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
  254. };
  255. static struct gpio_led gpio_leds[];
  256. static struct usbhs_phy_data phy_data[] = {
  257. {
  258. .port = 2,
  259. .reset_gpio = 147,
  260. .vcc_gpio = -1, /* updated in beagle_twl_gpio_setup */
  261. .vcc_polarity = 1, /* updated in beagle_twl_gpio_setup */
  262. },
  263. };
  264. static int beagle_twl_gpio_setup(struct device *dev,
  265. unsigned gpio, unsigned ngpio)
  266. {
  267. int r;
  268. mmc[0].gpio_wp = beagle_config.mmc1_gpio_wp;
  269. /* gpio + 0 is "mmc0_cd" (input/IRQ) */
  270. mmc[0].gpio_cd = gpio + 0;
  271. omap_hsmmc_late_init(mmc);
  272. /*
  273. * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
  274. * high / others active low)
  275. * DVI reset GPIO is different between beagle revisions
  276. */
  277. /* Valid for all -xM revisions */
  278. if (cpu_is_omap3630()) {
  279. /*
  280. * gpio + 1 on Xm controls the TFP410's enable line (active low)
  281. * gpio + 2 control varies depending on the board rev as below:
  282. * P7/P8 revisions(prototype): Camera EN
  283. * A2+ revisions (production): LDO (DVI, serial, led blocks)
  284. */
  285. r = gpio_request_one(gpio + 1, GPIOF_OUT_INIT_LOW,
  286. "nDVI_PWR_EN");
  287. if (r)
  288. pr_err("%s: unable to configure nDVI_PWR_EN\n",
  289. __func__);
  290. beagle_config.dvi_pd_gpio = gpio + 2;
  291. } else {
  292. /*
  293. * REVISIT: need ehci-omap hooks for external VBUS
  294. * power switch and overcurrent detect
  295. */
  296. if (gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC"))
  297. pr_err("%s: unable to configure EHCI_nOC\n", __func__);
  298. }
  299. beagle_tfp410_pdata.power_down_gpio = beagle_config.dvi_pd_gpio;
  300. platform_device_register(&beagle_tfp410_device);
  301. platform_device_register(&beagle_dvi_connector_device);
  302. platform_device_register(&beagle_tv_connector_device);
  303. /* TWL4030_GPIO_MAX i.e. LED_GPO controls HS USB Port 2 power */
  304. phy_data[0].vcc_gpio = gpio + TWL4030_GPIO_MAX;
  305. phy_data[0].vcc_polarity = beagle_config.usb_pwr_level;
  306. usbhs_init_phys(phy_data, ARRAY_SIZE(phy_data));
  307. return 0;
  308. }
  309. static struct twl4030_gpio_platform_data beagle_gpio_data = {
  310. .use_leds = true,
  311. .pullups = BIT(1),
  312. .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
  313. | BIT(15) | BIT(16) | BIT(17),
  314. .setup = beagle_twl_gpio_setup,
  315. };
  316. /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
  317. static struct regulator_init_data beagle_vmmc1 = {
  318. .constraints = {
  319. .min_uV = 1850000,
  320. .max_uV = 3150000,
  321. .valid_modes_mask = REGULATOR_MODE_NORMAL
  322. | REGULATOR_MODE_STANDBY,
  323. .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
  324. | REGULATOR_CHANGE_MODE
  325. | REGULATOR_CHANGE_STATUS,
  326. },
  327. .num_consumer_supplies = ARRAY_SIZE(beagle_vmmc1_supply),
  328. .consumer_supplies = beagle_vmmc1_supply,
  329. };
  330. /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
  331. static struct regulator_init_data beagle_vsim = {
  332. .constraints = {
  333. .min_uV = 1800000,
  334. .max_uV = 3000000,
  335. .valid_modes_mask = REGULATOR_MODE_NORMAL
  336. | REGULATOR_MODE_STANDBY,
  337. .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
  338. | REGULATOR_CHANGE_MODE
  339. | REGULATOR_CHANGE_STATUS,
  340. },
  341. .num_consumer_supplies = ARRAY_SIZE(beagle_vsim_supply),
  342. .consumer_supplies = beagle_vsim_supply,
  343. };
  344. static struct twl4030_platform_data beagle_twldata = {
  345. /* platform_data for children goes here */
  346. .gpio = &beagle_gpio_data,
  347. .vmmc1 = &beagle_vmmc1,
  348. .vsim = &beagle_vsim,
  349. };
  350. static struct i2c_board_info __initdata beagle_i2c_eeprom[] = {
  351. {
  352. I2C_BOARD_INFO("eeprom", 0x50),
  353. },
  354. };
  355. static int __init omap3_beagle_i2c_init(void)
  356. {
  357. omap3_pmic_get_config(&beagle_twldata,
  358. TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_MADC |
  359. TWL_COMMON_PDATA_AUDIO,
  360. TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
  361. beagle_twldata.vpll2->constraints.name = "VDVI";
  362. omap3_pmic_init("twl4030", &beagle_twldata);
  363. /* Bus 3 is attached to the DVI port where devices like the pico DLP
  364. * projector don't work reliably with 400kHz */
  365. omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom));
  366. return 0;
  367. }
  368. static struct gpio_led gpio_leds[] = {
  369. {
  370. .name = "beagleboard::usr0",
  371. .default_trigger = "heartbeat",
  372. .gpio = 150,
  373. },
  374. {
  375. .name = "beagleboard::usr1",
  376. .default_trigger = "mmc0",
  377. .gpio = 149,
  378. },
  379. };
  380. static struct gpio_led_platform_data gpio_led_info = {
  381. .leds = gpio_leds,
  382. .num_leds = ARRAY_SIZE(gpio_leds),
  383. };
  384. static struct platform_device leds_gpio = {
  385. .name = "leds-gpio",
  386. .id = -1,
  387. .dev = {
  388. .platform_data = &gpio_led_info,
  389. },
  390. };
  391. static struct gpio_keys_button gpio_buttons[] = {
  392. {
  393. .code = BTN_EXTRA,
  394. /* Dynamically assigned depending on board */
  395. .gpio = -EINVAL,
  396. .desc = "user",
  397. .wakeup = 1,
  398. },
  399. };
  400. static struct gpio_keys_platform_data gpio_key_info = {
  401. .buttons = gpio_buttons,
  402. .nbuttons = ARRAY_SIZE(gpio_buttons),
  403. };
  404. static struct platform_device keys_gpio = {
  405. .name = "gpio-keys",
  406. .id = -1,
  407. .dev = {
  408. .platform_data = &gpio_key_info,
  409. },
  410. };
  411. static struct platform_device madc_hwmon = {
  412. .name = "twl4030_madc_hwmon",
  413. .id = -1,
  414. };
  415. static struct platform_device *omap3_beagle_devices[] __initdata = {
  416. &leds_gpio,
  417. &keys_gpio,
  418. &madc_hwmon,
  419. &leds_pwm,
  420. };
  421. static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
  422. .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
  423. };
  424. #ifdef CONFIG_OMAP_MUX
  425. static struct omap_board_mux board_mux[] __initdata = {
  426. { .reg_offset = OMAP_MUX_TERMINATOR },
  427. };
  428. #endif
  429. static int __init beagle_opp_init(void)
  430. {
  431. int r = 0;
  432. if (!machine_is_omap3_beagle())
  433. return 0;
  434. /* Initialize the omap3 opp table if not already created. */
  435. r = omap3_opp_init();
  436. if (r < 0 && (r != -EEXIST)) {
  437. pr_err("%s: opp default init failed\n", __func__);
  438. return r;
  439. }
  440. /* Custom OPP enabled for all xM versions */
  441. if (cpu_is_omap3630()) {
  442. struct device *mpu_dev, *iva_dev;
  443. mpu_dev = get_cpu_device(0);
  444. iva_dev = omap_device_get_by_hwmod_name("iva");
  445. if (!mpu_dev || IS_ERR(iva_dev)) {
  446. pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
  447. __func__, mpu_dev, iva_dev);
  448. return -ENODEV;
  449. }
  450. /* Enable MPU 1GHz and lower opps */
  451. r = dev_pm_opp_enable(mpu_dev, 800000000);
  452. /* TODO: MPU 1GHz needs SR and ABB */
  453. /* Enable IVA 800MHz and lower opps */
  454. r |= dev_pm_opp_enable(iva_dev, 660000000);
  455. /* TODO: DSP 800MHz needs SR and ABB */
  456. if (r) {
  457. pr_err("%s: failed to enable higher opp %d\n",
  458. __func__, r);
  459. /*
  460. * Cleanup - disable the higher freqs - we dont care
  461. * about the results
  462. */
  463. dev_pm_opp_disable(mpu_dev, 800000000);
  464. dev_pm_opp_disable(iva_dev, 660000000);
  465. }
  466. }
  467. return 0;
  468. }
  469. omap_device_initcall(beagle_opp_init);
  470. static void __init omap3_beagle_init(void)
  471. {
  472. omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
  473. omap3_beagle_init_rev();
  474. if (gpio_is_valid(beagle_config.mmc1_gpio_wp))
  475. omap_mux_init_gpio(beagle_config.mmc1_gpio_wp, OMAP_PIN_INPUT);
  476. mmc[0].caps = beagle_config.mmc_caps;
  477. omap_hsmmc_init(mmc);
  478. omap3_beagle_i2c_init();
  479. gpio_buttons[0].gpio = beagle_config.usr_button_gpio;
  480. platform_add_devices(omap3_beagle_devices,
  481. ARRAY_SIZE(omap3_beagle_devices));
  482. if (gpio_is_valid(beagle_config.dvi_pd_gpio))
  483. omap_mux_init_gpio(beagle_config.dvi_pd_gpio, OMAP_PIN_OUTPUT);
  484. omap_display_init(&beagle_dss_data);
  485. omap_serial_init();
  486. omap_sdrc_init(mt46h32m32lf6_sdrc_params,
  487. mt46h32m32lf6_sdrc_params);
  488. usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
  489. usb_musb_init(NULL);
  490. usbhs_init(&usbhs_bdata);
  491. board_nand_init(omap3beagle_nand_partitions,
  492. ARRAY_SIZE(omap3beagle_nand_partitions), NAND_CS,
  493. NAND_BUSWIDTH_16, NULL);
  494. omap_twl4030_audio_init("omap3beagle", NULL);
  495. /* Ensure msecure is mux'd to be able to set the RTC. */
  496. omap_mux_init_signal("sys_drm_msecure", OMAP_PIN_OFF_OUTPUT_HIGH);
  497. /* Ensure SDRC pins are mux'd for self-refresh */
  498. omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
  499. omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
  500. pwm_add_table(pwm_lookup, ARRAY_SIZE(pwm_lookup));
  501. }
  502. MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
  503. /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
  504. .atag_offset = 0x100,
  505. .reserve = omap_reserve,
  506. .map_io = omap3_map_io,
  507. .init_early = omap3_init_early,
  508. .init_irq = omap3_init_irq,
  509. .handle_irq = omap3_intc_handle_irq,
  510. .init_machine = omap3_beagle_init,
  511. .init_late = omap3_init_late,
  512. .init_time = omap3_secure_sync32k_timer_init,
  513. .restart = omap3xxx_restart,
  514. MACHINE_END