colibri-imx8x.c 2.6 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 uart3_pads[] = {
  23. SC_P_FLEXCAN2_RX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL),
  24. SC_P_FLEXCAN2_TX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL),
  25. /* Transceiver FORCEOFF# signal, mux to use pull-up */
  26. SC_P_QSPI0B_DQS | MUX_MODE_ALT(4) | MUX_PAD_CTRL(UART_PAD_CTRL),
  27. };
  28. static void setup_iomux_uart(void)
  29. {
  30. imx8_iomux_setup_multiple_pads(uart3_pads, ARRAY_SIZE(uart3_pads));
  31. }
  32. int board_early_init_f(void)
  33. {
  34. sc_pm_clock_rate_t rate;
  35. sc_err_t err = 0;
  36. /*
  37. * This works around that having only UART3 up the baudrate is 1.2M
  38. * instead of 115.2k. Set UART0 clock root to 80 MHz
  39. */
  40. rate = 80000000;
  41. err = sc_pm_set_clock_rate(-1, SC_R_UART_0, SC_PM_CLK_PER, &rate);
  42. if (err != SC_ERR_NONE)
  43. return 0;
  44. /* Set UART3 clock root to 80 MHz and enable it */
  45. rate = SC_80MHZ;
  46. err = sc_pm_setup_uart(SC_R_UART_3, rate);
  47. if (err != SC_ERR_NONE)
  48. return 0;
  49. setup_iomux_uart();
  50. return 0;
  51. }
  52. #if IS_ENABLED(CONFIG_DM_GPIO)
  53. static void board_gpio_init(void)
  54. {
  55. /* TODO */
  56. }
  57. #else
  58. static inline void board_gpio_init(void) {}
  59. #endif
  60. #if IS_ENABLED(CONFIG_FEC_MXC)
  61. #include <miiphy.h>
  62. int board_phy_config(struct phy_device *phydev)
  63. {
  64. if (phydev->drv->config)
  65. phydev->drv->config(phydev);
  66. return 0;
  67. }
  68. #endif
  69. int checkboard(void)
  70. {
  71. puts("Model: Toradex Colibri iMX8X\n");
  72. build_info();
  73. print_bootinfo();
  74. return 0;
  75. }
  76. int board_init(void)
  77. {
  78. board_gpio_init();
  79. return 0;
  80. }
  81. void detail_board_ddr_info(void)
  82. {
  83. puts("\nDDR ");
  84. }
  85. /*
  86. * Board specific reset that is system reset.
  87. */
  88. void reset_cpu(ulong addr)
  89. {
  90. /* TODO */
  91. }
  92. #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
  93. int ft_board_setup(void *blob, bd_t *bd)
  94. {
  95. return ft_common_board_setup(blob, bd);
  96. }
  97. #endif
  98. int board_mmc_get_env_dev(int devno)
  99. {
  100. return devno;
  101. }
  102. int board_late_init(void)
  103. {
  104. #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
  105. /* TODO move to common */
  106. env_set("board_name", "Colibri iMX8QXP");
  107. env_set("board_rev", "v1.0");
  108. #endif
  109. return 0;
  110. }