universal.c 8.1 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381
  1. /*
  2. * Copyright (C) 2010 Samsung Electronics
  3. * Minkyu Kang <mk7.kang@samsung.com>
  4. * Kyungmin Park <kyungmin.park@samsung.com>
  5. *
  6. * SPDX-License-Identifier: GPL-2.0+
  7. */
  8. #include <common.h>
  9. #include <spi.h>
  10. #include <lcd.h>
  11. #include <asm/io.h>
  12. #include <asm/gpio.h>
  13. #include <asm/arch/adc.h>
  14. #include <asm/arch/pinmux.h>
  15. #include <asm/arch/watchdog.h>
  16. #include <ld9040.h>
  17. #include <power/pmic.h>
  18. #include <usb.h>
  19. #include <usb/dwc2_udc.h>
  20. #include <asm/arch/cpu.h>
  21. #include <power/max8998_pmic.h>
  22. #include <libtizen.h>
  23. #include <samsung/misc.h>
  24. #include <usb_mass_storage.h>
  25. DECLARE_GLOBAL_DATA_PTR;
  26. unsigned int board_rev;
  27. u32 get_board_rev(void)
  28. {
  29. return board_rev;
  30. }
  31. static int get_hwrev(void)
  32. {
  33. return board_rev & 0xFF;
  34. }
  35. static void init_pmic_lcd(void);
  36. int exynos_power_init(void)
  37. {
  38. int ret;
  39. /*
  40. * For PMIC the I2C bus is named as I2C5, but it is connected
  41. * to logical I2C adapter 0
  42. */
  43. ret = pmic_init(I2C_0);
  44. if (ret)
  45. return ret;
  46. init_pmic_lcd();
  47. return 0;
  48. }
  49. static unsigned short get_adc_value(int channel)
  50. {
  51. struct s5p_adc *adc = (struct s5p_adc *)samsung_get_base_adc();
  52. unsigned short ret = 0;
  53. unsigned int reg;
  54. unsigned int loop = 0;
  55. writel(channel & 0xF, &adc->adcmux);
  56. writel((1 << 14) | (49 << 6), &adc->adccon);
  57. writel(1000 & 0xffff, &adc->adcdly);
  58. writel(readl(&adc->adccon) | (1 << 16), &adc->adccon); /* 12 bit */
  59. udelay(10);
  60. writel(readl(&adc->adccon) | (1 << 0), &adc->adccon); /* Enable */
  61. udelay(10);
  62. do {
  63. udelay(1);
  64. reg = readl(&adc->adccon);
  65. } while (!(reg & (1 << 15)) && (loop++ < 1000));
  66. ret = readl(&adc->adcdat0) & 0xFFF;
  67. return ret;
  68. }
  69. static int adc_power_control(int on)
  70. {
  71. int ret;
  72. struct pmic *p = pmic_get("MAX8998_PMIC");
  73. if (!p)
  74. return -ENODEV;
  75. if (pmic_probe(p))
  76. return -1;
  77. ret = pmic_set_output(p,
  78. MAX8998_REG_ONOFF1,
  79. MAX8998_LDO4, !!on);
  80. return ret;
  81. }
  82. static unsigned int get_hw_revision(void)
  83. {
  84. int hwrev, mode0, mode1;
  85. adc_power_control(1);
  86. mode0 = get_adc_value(1); /* HWREV_MODE0 */
  87. mode1 = get_adc_value(2); /* HWREV_MODE1 */
  88. /*
  89. * XXX Always set the default hwrev as the latest board
  90. * ADC = (voltage) / 3.3 * 4096
  91. */
  92. hwrev = 3;
  93. #define IS_RANGE(x, min, max) ((x) > (min) && (x) < (max))
  94. if (IS_RANGE(mode0, 80, 200) && IS_RANGE(mode1, 80, 200))
  95. hwrev = 0x0; /* 0.01V 0.01V */
  96. if (IS_RANGE(mode0, 750, 1000) && IS_RANGE(mode1, 80, 200))
  97. hwrev = 0x1; /* 610mV 0.01V */
  98. if (IS_RANGE(mode0, 1300, 1700) && IS_RANGE(mode1, 80, 200))
  99. hwrev = 0x2; /* 1.16V 0.01V */
  100. if (IS_RANGE(mode0, 2000, 2400) && IS_RANGE(mode1, 80, 200))
  101. hwrev = 0x3; /* 1.79V 0.01V */
  102. #undef IS_RANGE
  103. debug("mode0: %d, mode1: %d, hwrev 0x%x\n", mode0, mode1, hwrev);
  104. adc_power_control(0);
  105. return hwrev;
  106. }
  107. static void check_hw_revision(void)
  108. {
  109. int hwrev;
  110. hwrev = get_hw_revision();
  111. board_rev |= hwrev;
  112. }
  113. #ifdef CONFIG_USB_GADGET
  114. static int s5pc210_phy_control(int on)
  115. {
  116. int ret = 0;
  117. struct pmic *p = pmic_get("MAX8998_PMIC");
  118. if (!p)
  119. return -ENODEV;
  120. if (pmic_probe(p))
  121. return -1;
  122. if (on) {
  123. ret |= pmic_set_output(p,
  124. MAX8998_REG_BUCK_ACTIVE_DISCHARGE3,
  125. MAX8998_SAFEOUT1, LDO_ON);
  126. ret |= pmic_set_output(p, MAX8998_REG_ONOFF1,
  127. MAX8998_LDO3, LDO_ON);
  128. ret |= pmic_set_output(p, MAX8998_REG_ONOFF2,
  129. MAX8998_LDO8, LDO_ON);
  130. } else {
  131. ret |= pmic_set_output(p, MAX8998_REG_ONOFF2,
  132. MAX8998_LDO8, LDO_OFF);
  133. ret |= pmic_set_output(p, MAX8998_REG_ONOFF1,
  134. MAX8998_LDO3, LDO_OFF);
  135. ret |= pmic_set_output(p,
  136. MAX8998_REG_BUCK_ACTIVE_DISCHARGE3,
  137. MAX8998_SAFEOUT1, LDO_OFF);
  138. }
  139. if (ret) {
  140. puts("MAX8998 LDO setting error!\n");
  141. return -1;
  142. }
  143. return 0;
  144. }
  145. struct dwc2_plat_otg_data s5pc210_otg_data = {
  146. .phy_control = s5pc210_phy_control,
  147. .regs_phy = EXYNOS4_USBPHY_BASE,
  148. .regs_otg = EXYNOS4_USBOTG_BASE,
  149. .usb_phy_ctrl = EXYNOS4_USBPHY_CONTROL,
  150. .usb_flags = PHY0_SLEEP,
  151. };
  152. #endif
  153. int board_usb_init(int index, enum usb_init_type init)
  154. {
  155. debug("USB_udc_probe\n");
  156. return dwc2_udc_probe(&s5pc210_otg_data);
  157. }
  158. int exynos_early_init_f(void)
  159. {
  160. wdt_stop();
  161. return 0;
  162. }
  163. static void init_pmic_lcd(void)
  164. {
  165. unsigned char val;
  166. int ret = 0;
  167. struct pmic *p = pmic_get("MAX8998_PMIC");
  168. if (!p)
  169. return;
  170. if (pmic_probe(p))
  171. return;
  172. /* LDO7 1.8V */
  173. val = 0x02; /* (1800 - 1600) / 100; */
  174. ret |= pmic_reg_write(p, MAX8998_REG_LDO7, val);
  175. /* LDO17 3.0V */
  176. val = 0xe; /* (3000 - 1600) / 100; */
  177. ret |= pmic_reg_write(p, MAX8998_REG_LDO17, val);
  178. /* Disable unneeded regulators */
  179. /*
  180. * ONOFF1
  181. * Buck1 ON, Buck2 OFF, Buck3 ON, Buck4 ON
  182. * LDO2 ON, LDO3 OFF, LDO4 OFF, LDO5 ON
  183. */
  184. val = 0xB9;
  185. ret |= pmic_reg_write(p, MAX8998_REG_ONOFF1, val);
  186. /* ONOFF2
  187. * LDO6 OFF, LDO7 ON, LDO8 OFF, LDO9 ON,
  188. * LDO10 OFF, LDO11 OFF, LDO12 OFF, LDO13 OFF
  189. */
  190. val = 0x50;
  191. ret |= pmic_reg_write(p, MAX8998_REG_ONOFF2, val);
  192. /* ONOFF3
  193. * LDO14 OFF, LDO15 OFF, LGO16 OFF, LDO17 OFF
  194. * EPWRHOLD OFF, EBATTMON OFF, ELBCNFG2 OFF, ELBCNFG1 OFF
  195. */
  196. val = 0x00;
  197. ret |= pmic_reg_write(p, MAX8998_REG_ONOFF3, val);
  198. if (ret)
  199. puts("LCD pmic initialisation error!\n");
  200. }
  201. void exynos_cfg_lcd_gpio(void)
  202. {
  203. unsigned int i, f3_end = 4;
  204. for (i = 0; i < 8; i++) {
  205. /* set GPF0,1,2[0:7] for RGB Interface and Data lines (32bit) */
  206. gpio_cfg_pin(EXYNOS4_GPIO_F00 + i, S5P_GPIO_FUNC(2));
  207. gpio_cfg_pin(EXYNOS4_GPIO_F10 + i, S5P_GPIO_FUNC(2));
  208. gpio_cfg_pin(EXYNOS4_GPIO_F20 + i, S5P_GPIO_FUNC(2));
  209. /* pull-up/down disable */
  210. gpio_set_pull(EXYNOS4_GPIO_F00 + i, S5P_GPIO_PULL_NONE);
  211. gpio_set_pull(EXYNOS4_GPIO_F10 + i, S5P_GPIO_PULL_NONE);
  212. gpio_set_pull(EXYNOS4_GPIO_F20 + i, S5P_GPIO_PULL_NONE);
  213. /* drive strength to max (24bit) */
  214. gpio_set_drv(EXYNOS4_GPIO_F00 + i, S5P_GPIO_DRV_4X);
  215. gpio_set_rate(EXYNOS4_GPIO_F00 + i, S5P_GPIO_DRV_SLOW);
  216. gpio_set_drv(EXYNOS4_GPIO_F10 + i, S5P_GPIO_DRV_4X);
  217. gpio_set_rate(EXYNOS4_GPIO_F10 + i, S5P_GPIO_DRV_SLOW);
  218. gpio_set_drv(EXYNOS4_GPIO_F20 + i, S5P_GPIO_DRV_4X);
  219. gpio_set_rate(EXYNOS4_GPIO_F00 + i, S5P_GPIO_DRV_SLOW);
  220. }
  221. for (i = EXYNOS4_GPIO_F30; i < (EXYNOS4_GPIO_F30 + f3_end); i++) {
  222. /* set GPF3[0:3] for RGB Interface and Data lines (32bit) */
  223. gpio_cfg_pin(i, S5P_GPIO_FUNC(2));
  224. /* pull-up/down disable */
  225. gpio_set_pull(i, S5P_GPIO_PULL_NONE);
  226. /* drive strength to max (24bit) */
  227. gpio_set_drv(i, S5P_GPIO_DRV_4X);
  228. gpio_set_rate(i, S5P_GPIO_DRV_SLOW);
  229. }
  230. /* gpio pad configuration for LCD reset. */
  231. gpio_request(EXYNOS4_GPIO_Y45, "lcd_reset");
  232. gpio_cfg_pin(EXYNOS4_GPIO_Y45, S5P_GPIO_OUTPUT);
  233. }
  234. int mipi_power(void)
  235. {
  236. return 0;
  237. }
  238. void exynos_reset_lcd(void)
  239. {
  240. gpio_set_value(EXYNOS4_GPIO_Y45, 1);
  241. udelay(10000);
  242. gpio_set_value(EXYNOS4_GPIO_Y45, 0);
  243. udelay(10000);
  244. gpio_set_value(EXYNOS4_GPIO_Y45, 1);
  245. udelay(100);
  246. }
  247. void exynos_lcd_power_on(void)
  248. {
  249. struct pmic *p = pmic_get("MAX8998_PMIC");
  250. if (!p)
  251. return;
  252. if (pmic_probe(p))
  253. return;
  254. pmic_set_output(p, MAX8998_REG_ONOFF3, MAX8998_LDO17, LDO_ON);
  255. pmic_set_output(p, MAX8998_REG_ONOFF2, MAX8998_LDO7, LDO_ON);
  256. }
  257. void exynos_cfg_ldo(void)
  258. {
  259. ld9040_cfg_ldo();
  260. }
  261. void exynos_enable_ldo(unsigned int onoff)
  262. {
  263. ld9040_enable_ldo(onoff);
  264. }
  265. int exynos_init(void)
  266. {
  267. char buf[16];
  268. gd->bd->bi_arch_number = MACH_TYPE_UNIVERSAL_C210;
  269. switch (get_hwrev()) {
  270. case 0:
  271. /*
  272. * Set the low to enable LDO_EN
  273. * But when you use the test board for eMMC booting
  274. * you should set it HIGH since it removes the inverter
  275. */
  276. /* MASSMEMORY_EN: XMDMDATA_6: GPE3[6] */
  277. gpio_request(EXYNOS4_GPIO_E36, "ldo_en");
  278. gpio_direction_output(EXYNOS4_GPIO_E36, 0);
  279. break;
  280. default:
  281. /*
  282. * Default reset state is High and there's no inverter
  283. * But set it as HIGH to ensure
  284. */
  285. /* MASSMEMORY_EN: XMDMADDR_3: GPE1[3] */
  286. gpio_request(EXYNOS4_GPIO_E13, "massmemory_en");
  287. gpio_direction_output(EXYNOS4_GPIO_E13, 1);
  288. break;
  289. }
  290. /* Request soft I2C gpios */
  291. strcpy(buf, "soft_i2c_scl");
  292. gpio_request(CONFIG_SOFT_I2C_GPIO_SCL, buf);
  293. strcpy(buf, "soft_i2c_sda");
  294. gpio_request(CONFIG_SOFT_I2C_GPIO_SDA, buf);
  295. check_hw_revision();
  296. printf("HW Revision:\t0x%x\n", board_rev);
  297. return 0;
  298. }
  299. void exynos_lcd_misc_init(vidinfo_t *vid)
  300. {
  301. #ifdef CONFIG_TIZEN
  302. get_tizen_logo_info(vid);
  303. #endif
  304. /* for LD9040. */
  305. vid->pclk_name = 1; /* MPLL */
  306. vid->sclk_div = 1;
  307. setenv("lcdinfo", "lcd=ld9040");
  308. }