novena.c 4.4 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232
  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Novena board support
  4. *
  5. * Copyright (C) 2014 Marek Vasut <marex@denx.de>
  6. */
  7. #include <common.h>
  8. #include <dm.h>
  9. #include <dm/device-internal.h>
  10. #include <ahci.h>
  11. #include <env.h>
  12. #include <linux/errno.h>
  13. #include <asm/gpio.h>
  14. #include <asm/io.h>
  15. #include <asm/arch/clock.h>
  16. #include <asm/arch/crm_regs.h>
  17. #include <asm/arch/imx-regs.h>
  18. #include <asm/arch/iomux.h>
  19. #include <asm/arch/mxc_hdmi.h>
  20. #include <asm/arch/sys_proto.h>
  21. #include <asm/mach-imx/boot_mode.h>
  22. #include <asm/mach-imx/iomux-v3.h>
  23. #include <asm/mach-imx/mxc_i2c.h>
  24. #include <asm/mach-imx/sata.h>
  25. #include <asm/mach-imx/video.h>
  26. #include <dwc_ahsata.h>
  27. #include <environment.h>
  28. #include <fsl_esdhc_imx.h>
  29. #include <i2c.h>
  30. #include <input.h>
  31. #include <ipu_pixfmt.h>
  32. #include <linux/fb.h>
  33. #include <linux/input.h>
  34. #include <malloc.h>
  35. #include <micrel.h>
  36. #include <miiphy.h>
  37. #include <mmc.h>
  38. #include <netdev.h>
  39. #include <power/pmic.h>
  40. #include <power/pfuze100_pmic.h>
  41. #include <stdio_dev.h>
  42. #include <video_console.h>
  43. #include "novena.h"
  44. DECLARE_GLOBAL_DATA_PTR;
  45. /*
  46. * GPIO button
  47. */
  48. #ifdef CONFIG_KEYBOARD
  49. static struct input_config button_input;
  50. static int novena_gpio_button_read_keys(struct input_config *input)
  51. {
  52. int key = KEY_ENTER;
  53. if (gpio_get_value(NOVENA_BUTTON_GPIO))
  54. return 0;
  55. input_send_keycodes(&button_input, &key, 1);
  56. return 1;
  57. }
  58. static int novena_gpio_button_getc(struct stdio_dev *dev)
  59. {
  60. return input_getc(&button_input);
  61. }
  62. static int novena_gpio_button_tstc(struct stdio_dev *dev)
  63. {
  64. return input_tstc(&button_input);
  65. }
  66. static int novena_gpio_button_init(struct stdio_dev *dev)
  67. {
  68. gpio_direction_input(NOVENA_BUTTON_GPIO);
  69. input_set_delays(&button_input, 250, 250);
  70. return 0;
  71. }
  72. int drv_keyboard_init(void)
  73. {
  74. int error;
  75. struct stdio_dev dev = {
  76. .name = "button",
  77. .flags = DEV_FLAGS_INPUT,
  78. .start = novena_gpio_button_init,
  79. .getc = novena_gpio_button_getc,
  80. .tstc = novena_gpio_button_tstc,
  81. };
  82. gpio_request(NOVENA_BUTTON_GPIO, "button");
  83. error = input_init(&button_input, 0);
  84. if (error) {
  85. debug("%s: Cannot set up input\n", __func__);
  86. return -1;
  87. }
  88. input_add_tables(&button_input, false);
  89. button_input.read_keys = novena_gpio_button_read_keys;
  90. error = input_stdio_register(&dev);
  91. if (error)
  92. return error;
  93. return 0;
  94. }
  95. #endif
  96. int board_early_init_f(void)
  97. {
  98. #if defined(CONFIG_VIDEO_IPUV3)
  99. setup_display_clock();
  100. #endif
  101. return 0;
  102. }
  103. int board_init(void)
  104. {
  105. /* address of boot parameters */
  106. gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
  107. return 0;
  108. }
  109. int board_late_init(void)
  110. {
  111. #if defined(CONFIG_VIDEO_IPUV3)
  112. struct udevice *con;
  113. char buf[DISPLAY_OPTIONS_BANNER_LENGTH];
  114. int ret;
  115. setup_display_lvds();
  116. ret = uclass_get_device(UCLASS_VIDEO_CONSOLE, 0, &con);
  117. if (ret)
  118. return ret;
  119. display_options_get_banner(false, buf, sizeof(buf));
  120. vidconsole_position_cursor(con, 0, 0);
  121. vidconsole_put_string(con, buf);
  122. #endif
  123. return 0;
  124. }
  125. int checkboard(void)
  126. {
  127. puts("Board: Novena 4x\n");
  128. return 0;
  129. }
  130. int dram_init(void)
  131. {
  132. gd->ram_size = imx_ddr_size();
  133. return 0;
  134. }
  135. /* setup board specific PMIC */
  136. int power_init_board(void)
  137. {
  138. struct pmic *p;
  139. u32 reg;
  140. int ret;
  141. power_pfuze100_init(1);
  142. p = pmic_get("PFUZE100");
  143. if (!p)
  144. return -EINVAL;
  145. ret = pmic_probe(p);
  146. if (ret)
  147. return ret;
  148. pmic_reg_read(p, PFUZE100_DEVICEID, &reg);
  149. printf("PMIC: PFUZE100 ID=0x%02x\n", reg);
  150. /* Set SWBST to 5.0V and enable (for USB) */
  151. pmic_reg_read(p, PFUZE100_SWBSTCON1, &reg);
  152. reg &= ~(SWBST_MODE_MASK | SWBST_VOL_MASK);
  153. reg |= (SWBST_5_00V | (SWBST_MODE_AUTO << SWBST_MODE_SHIFT));
  154. pmic_reg_write(p, PFUZE100_SWBSTCON1, reg);
  155. return 0;
  156. }
  157. /* EEPROM configuration data */
  158. struct novena_eeprom_data {
  159. uint8_t signature[6];
  160. uint8_t version;
  161. uint8_t reserved;
  162. uint32_t serial;
  163. uint8_t mac[6];
  164. uint16_t features;
  165. };
  166. int misc_init_r(void)
  167. {
  168. struct novena_eeprom_data data;
  169. uchar *datap = (uchar *)&data;
  170. const char *signature = "Novena";
  171. int ret;
  172. /* If 'ethaddr' is already set, do nothing. */
  173. if (env_get("ethaddr"))
  174. return 0;
  175. /* EEPROM is at bus 2. */
  176. ret = i2c_set_bus_num(2);
  177. if (ret) {
  178. puts("Cannot select EEPROM I2C bus.\n");
  179. return 0;
  180. }
  181. /* EEPROM is at address 0x56. */
  182. ret = eeprom_read(0x56, 0, datap, sizeof(data));
  183. if (ret) {
  184. puts("Cannot read I2C EEPROM.\n");
  185. return 0;
  186. }
  187. /* Check EEPROM signature. */
  188. if (memcmp(data.signature, signature, 6)) {
  189. puts("Invalid I2C EEPROM signature.\n");
  190. return 0;
  191. }
  192. /* Set ethernet address from EEPROM. */
  193. eth_env_set_enetaddr("ethaddr", data.mac);
  194. return ret;
  195. }