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 #include <cpu_func.h>
   8 #include <init.h>
   9
  10 #include <asm/arch/clock.h>
  11 #include <asm/arch/imx8-pins.h>
  12 #include <asm/arch/iomux.h>
  13 #include <asm/arch/sci/sci.h>
  14 #include <asm/arch/sys_proto.h>
  15 #include <asm/gpio.h>
  16 #include <asm/io.h>
  17 #include <env.h>
  18 #include <errno.h>
  19 #include <linux/libfdt.h>
  20
  21 #include "../common/tdx-cfg-block.h"
  22
  23 DECLARE_GLOBAL_DATA_PTR;
  24
  25 #define UART_PAD_CTRL   ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \
  26                          (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
  27                          (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
  28                          (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
  29
  30 static iomux_cfg_t uart1_pads[] = {
  31         SC_P_UART1_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  32         SC_P_UART1_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  33 };
  34
  35 static void setup_iomux_uart(void)
  36 {
  37         imx8_iomux_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
  38 }
  39
  40 int board_early_init_f(void)
  41 {
  42         sc_pm_clock_rate_t rate = SC_80MHZ;
  43         sc_err_t err = 0;
  44
  45         /* Set UART1 clock root to 80 MHz and enable it */
  46         err = sc_pm_setup_uart(SC_R_UART_1, rate);
  47         if (err != SC_ERR_NONE)
  48                 return 0;
  49
  50         setup_iomux_uart();
  51
  52         return 0;
  53 }
  54
  55 #if CONFIG_IS_ENABLED(DM_GPIO)
  56 static void board_gpio_init(void)
  57 {
  58         /* TODO */
  59 }
  60 #else
  61 static inline void board_gpio_init(void) {}
  62 #endif
  63
  64 #if IS_ENABLED(CONFIG_FEC_MXC)
  65 #include <miiphy.h>
  66
  67 int board_phy_config(struct phy_device *phydev)
  68 {
  69         if (phydev->drv->config)
  70                 phydev->drv->config(phydev);
  71
  72         return 0;
  73 }
  74 #endif
  75
  76 int checkboard(void)
  77 {
  78         puts("Model: Toradex Apalis iMX8\n");
  79
  80         build_info();
  81         print_bootinfo();
  82
  83         return 0;
  84 }
  85
  86 int board_init(void)
  87 {
  88         board_gpio_init();
  89
  90         return 0;
  91 }
  92
  93 /*
  94  * Board specific reset that is system reset.
  95  */
  96 void reset_cpu(ulong addr)
  97 {
  98         /* TODO */
  99 }
 100
 101 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
 102 int ft_board_setup(void *blob, struct bd_info *bd)
 103 {
 104         return ft_common_board_setup(blob, bd);
 105 }
 106 #endif
 107
 108 int board_mmc_get_env_dev(int devno)
 109 {
 110         return devno;
 111 }
 112
 113 int board_late_init(void)
 114 {
 115 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 116 /* TODO move to common */
 117         env_set("board_name", "Apalis iMX8QM");
 118         env_set("board_rev", "v1.0");
 119 #endif
 120
 121         return 0;
 122 }