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;
  41         sc_err_t err = 0;
  42
  43         /* Power up UART1 */
  44         err = sc_pm_set_resource_power_mode(-1, SC_R_UART_1, SC_PM_PW_MODE_ON);
  45         if (err != SC_ERR_NONE)
  46                 return 0;
  47
  48         /* Set UART3 clock root to 80 MHz */
  49         rate = 80000000;
  50         err = sc_pm_set_clock_rate(-1, SC_R_UART_1, SC_PM_CLK_PER, &rate);
  51         if (err != SC_ERR_NONE)
  52                 return 0;
  53
  54         /* Enable UART1 clock root */
  55         err = sc_pm_clock_enable(-1, SC_R_UART_1, SC_PM_CLK_PER, true, false);
  56         if (err != SC_ERR_NONE)
  57                 return 0;
  58
  59         setup_iomux_uart();
  60
  61         return 0;
  62 }
  63
  64 #if IS_ENABLED(CONFIG_DM_GPIO)
  65 static void board_gpio_init(void)
  66 {
  67         /* TODO */
  68 }
  69 #else
  70 static inline void board_gpio_init(void) {}
  71 #endif
  72
  73 #if IS_ENABLED(CONFIG_FEC_MXC)
  74 #include <miiphy.h>
  75
  76 int board_phy_config(struct phy_device *phydev)
  77 {
  78         if (phydev->drv->config)
  79                 phydev->drv->config(phydev);
  80
  81         return 0;
  82 }
  83 #endif
  84
  85 void build_info(void)
  86 {
  87         u32 sc_build = 0, sc_commit = 0;
  88
  89         /* Get SCFW build and commit id */
  90         sc_misc_build_info(-1, &sc_build, &sc_commit);
  91         if (!sc_build) {
  92                 printf("SCFW does not support build info\n");
  93                 sc_commit = 0; /* Display 0 if build info not supported */
  94         }
  95         printf("Build: SCFW %x\n", sc_commit);
  96 }
  97
  98 int checkboard(void)
  99 {
 100         puts("Model: Toradex Apalis iMX8\n");
 101
 102         build_info();
 103         print_bootinfo();
 104
 105         return 0;
 106 }
 107
 108 int board_init(void)
 109 {
 110         board_gpio_init();
 111
 112         return 0;
 113 }
 114
 115 void detail_board_ddr_info(void)
 116 {
 117         puts("\nDDR    ");
 118 }
 119
 120 /*
 121  * Board specific reset that is system reset.
 122  */
 123 void reset_cpu(ulong addr)
 124 {
 125         /* TODO */
 126 }
 127
 128 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
 129 int ft_board_setup(void *blob, bd_t *bd)
 130 {
 131         return ft_common_board_setup(blob, bd);
 132 }
 133 #endif
 134
 135 int board_mmc_get_env_dev(int devno)
 136 {
 137         return devno;
 138 }
 139
 140 int board_late_init(void)
 141 {
 142 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 143 /* TODO move to common */
 144         env_set("board_name", "Apalis iMX8QM");
 145         env_set("board_rev", "v1.0");
 146 #endif
 147
 148         return 0;
 149 }