apalis-imx8.c 2.1 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright 2019 Toradex
  4. */
  5. #include <common.h>
  6. #include <asm/arch/clock.h>
  7. #include <asm/arch/imx8-pins.h>
  8. #include <asm/arch/iomux.h>
  9. #include <asm/arch/sci/sci.h>
  10. #include <asm/arch/sys_proto.h>
  11. #include <asm/gpio.h>
  12. #include <asm/io.h>
  13. #include <env.h>
  14. #include <errno.h>
  15. #include <linux/libfdt.h>
  16. #include "../common/tdx-cfg-block.h"
  17. DECLARE_GLOBAL_DATA_PTR;
  18. #define UART_PAD_CTRL ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \
  19. (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
  20. (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
  21. (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
  22. static iomux_cfg_t uart1_pads[] = {
  23. SC_P_UART1_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  24. SC_P_UART1_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  25. };
  26. static void setup_iomux_uart(void)
  27. {
  28. imx8_iomux_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
  29. }
  30. int board_early_init_f(void)
  31. {
  32. sc_pm_clock_rate_t rate = SC_80MHZ;
  33. sc_err_t err = 0;
  34. /* Set UART1 clock root to 80 MHz and enable it */
  35. err = sc_pm_setup_uart(SC_R_UART_1, rate);
  36. if (err != SC_ERR_NONE)
  37. return 0;
  38. setup_iomux_uart();
  39. return 0;
  40. }
  41. #if IS_ENABLED(CONFIG_DM_GPIO)
  42. static void board_gpio_init(void)
  43. {
  44. /* TODO */
  45. }
  46. #else
  47. static inline void board_gpio_init(void) {}
  48. #endif
  49. #if IS_ENABLED(CONFIG_FEC_MXC)
  50. #include <miiphy.h>
  51. int board_phy_config(struct phy_device *phydev)
  52. {
  53. if (phydev->drv->config)
  54. phydev->drv->config(phydev);
  55. return 0;
  56. }
  57. #endif
  58. int checkboard(void)
  59. {
  60. puts("Model: Toradex Apalis iMX8\n");
  61. build_info();
  62. print_bootinfo();
  63. return 0;
  64. }
  65. int board_init(void)
  66. {
  67. board_gpio_init();
  68. return 0;
  69. }
  70. void detail_board_ddr_info(void)
  71. {
  72. puts("\nDDR ");
  73. }
  74. /*
  75. * Board specific reset that is system reset.
  76. */
  77. void reset_cpu(ulong addr)
  78. {
  79. /* TODO */
  80. }
  81. #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
  82. int ft_board_setup(void *blob, bd_t *bd)
  83. {
  84. return ft_common_board_setup(blob, bd);
  85. }
  86. #endif
  87. int board_mmc_get_env_dev(int devno)
  88. {
  89. return devno;
  90. }
  91. int board_late_init(void)
  92. {
  93. #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
  94. /* TODO move to common */
  95. env_set("board_name", "Apalis iMX8QM");
  96. env_set("board_rev", "v1.0");
  97. #endif
  98. return 0;
  99. }