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 <init.h>
  7. #include <asm/arch/clock.h>
  8. #include <asm/arch/imx8-pins.h>
  9. #include <asm/arch/iomux.h>
  10. #include <asm/arch/sci/sci.h>
  11. #include <asm/arch/sys_proto.h>
  12. #include <asm/gpio.h>
  13. #include <asm/io.h>
  14. #include <env.h>
  15. #include <errno.h>
  16. #include <linux/libfdt.h>
  17. #include "../common/tdx-cfg-block.h"
  18. DECLARE_GLOBAL_DATA_PTR;
  19. #define UART_PAD_CTRL ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \
  20. (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
  21. (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
  22. (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
  23. static iomux_cfg_t uart3_pads[] = {
  24. SC_P_FLEXCAN2_RX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL),
  25. SC_P_FLEXCAN2_TX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL),
  26. /* Transceiver FORCEOFF# signal, mux to use pull-up */
  27. SC_P_QSPI0B_DQS | MUX_MODE_ALT(4) | MUX_PAD_CTRL(UART_PAD_CTRL),
  28. };
  29. static void setup_iomux_uart(void)
  30. {
  31. imx8_iomux_setup_multiple_pads(uart3_pads, ARRAY_SIZE(uart3_pads));
  32. }
  33. int board_early_init_f(void)
  34. {
  35. sc_pm_clock_rate_t rate;
  36. sc_err_t err = 0;
  37. /*
  38. * This works around that having only UART3 up the baudrate is 1.2M
  39. * instead of 115.2k. Set UART0 clock root to 80 MHz
  40. */
  41. rate = 80000000;
  42. err = sc_pm_set_clock_rate(-1, SC_R_UART_0, SC_PM_CLK_PER, &rate);
  43. if (err != SC_ERR_NONE)
  44. return 0;
  45. /* Set UART3 clock root to 80 MHz and enable it */
  46. rate = SC_80MHZ;
  47. err = sc_pm_setup_uart(SC_R_UART_3, rate);
  48. if (err != SC_ERR_NONE)
  49. return 0;
  50. setup_iomux_uart();
  51. return 0;
  52. }
  53. #if IS_ENABLED(CONFIG_DM_GPIO)
  54. static void board_gpio_init(void)
  55. {
  56. /* TODO */
  57. }
  58. #else
  59. static inline void board_gpio_init(void) {}
  60. #endif
  61. #if IS_ENABLED(CONFIG_FEC_MXC)
  62. #include <miiphy.h>
  63. int board_phy_config(struct phy_device *phydev)
  64. {
  65. if (phydev->drv->config)
  66. phydev->drv->config(phydev);
  67. return 0;
  68. }
  69. #endif
  70. int checkboard(void)
  71. {
  72. puts("Model: Toradex Colibri iMX8X\n");
  73. build_info();
  74. print_bootinfo();
  75. return 0;
  76. }
  77. int board_init(void)
  78. {
  79. board_gpio_init();
  80. return 0;
  81. }
  82. void detail_board_ddr_info(void)
  83. {
  84. puts("\nDDR ");
  85. }
  86. /*
  87. * Board specific reset that is system reset.
  88. */
  89. void reset_cpu(ulong addr)
  90. {
  91. /* TODO */
  92. }
  93. #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
  94. int ft_board_setup(void *blob, bd_t *bd)
  95. {
  96. return ft_common_board_setup(blob, bd);
  97. }
  98. #endif
  99. int board_mmc_get_env_dev(int devno)
  100. {
  101. return devno;
  102. }
  103. int board_late_init(void)
  104. {
  105. #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
  106. /* TODO move to common */
  107. env_set("board_name", "Colibri iMX8QXP");
  108. env_set("board_rev", "v1.0");
  109. #endif
  110. return 0;
  111. }