novena.c 4.4 KB

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