board/toradex/apalis-imx8/apalis-imx8.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright 2019 Toradex
   4  */
   5
   6 #include <common.h>
   7
   8 #include <asm/arch/clock.h>
   9 #include <asm/arch/imx8-pins.h>
  10 #include <asm/arch/iomux.h>
  11 #include <asm/arch/sci/sci.h>
  12 #include <asm/arch/sys_proto.h>
  13 #include <asm/gpio.h>
  14 #include <asm/io.h>
  15 #include <environment.h>
  16 #include <errno.h>
  17 #include <linux/libfdt.h>
  18
  19 #include "../common/tdx-cfg-block.h"
  20
  21 DECLARE_GLOBAL_DATA_PTR;
  22
  23 #define UART_PAD_CTRL   ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \
  24                          (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
  25                          (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
  26                          (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
  27
  28 static iomux_cfg_t uart1_pads[] = {
  29         SC_P_UART1_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  30         SC_P_UART1_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  31 };
  32
  33 static void setup_iomux_uart(void)
  34 {
  35         imx8_iomux_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
  36 }
  37
  38 int board_early_init_f(void)
  39 {
  40         sc_pm_clock_rate_t rate = SC_80MHZ;
  41         sc_err_t err = 0;
  42
  43         /* Set UART1 clock root to 80 MHz and enable it */
  44         err = sc_pm_setup_uart(SC_R_UART_1, rate);
  45         if (err != SC_ERR_NONE)
  46                 return 0;
  47
  48         setup_iomux_uart();
  49
  50         return 0;
  51 }
  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
  62 #if IS_ENABLED(CONFIG_FEC_MXC)
  63 #include <miiphy.h>
  64
  65 int board_phy_config(struct phy_device *phydev)
  66 {
  67         if (phydev->drv->config)
  68                 phydev->drv->config(phydev);
  69
  70         return 0;
  71 }
  72 #endif
  73
  74 int checkboard(void)
  75 {
  76         puts("Model: Toradex Apalis iMX8\n");
  77
  78         build_info();
  79         print_bootinfo();
  80
  81         return 0;
  82 }
  83
  84 int board_init(void)
  85 {
  86         board_gpio_init();
  87
  88         return 0;
  89 }
  90
  91 void detail_board_ddr_info(void)
  92 {
  93         puts("\nDDR    ");
  94 }
  95
  96 /*
  97  * Board specific reset that is system reset.
  98  */
  99 void reset_cpu(ulong addr)
 100 {
 101         /* TODO */
 102 }
 103
 104 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
 105 int ft_board_setup(void *blob, bd_t *bd)
 106 {
 107         return ft_common_board_setup(blob, bd);
 108 }
 109 #endif
 110
 111 int board_mmc_get_env_dev(int devno)
 112 {
 113         return devno;
 114 }
 115
 116 int board_late_init(void)
 117 {
 118 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 119 /* TODO move to common */
 120         env_set("board_name", "Apalis iMX8QM");
 121         env_set("board_rev", "v1.0");
 122 #endif
 123
 124         return 0;
 125 }