LXR uboot/board/toradex/apalis-imx8x/apalis-imx8x.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright 2020 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/global_data.h>
  16#include <asm/gpio.h>
  17#include <asm/io.h>
  18#include <env.h>
  19#include <errno.h>
  20#include <linux/libfdt.h>
  21
  22#include "../common/tdx-cfg-block.h"
  23
  24DECLARE_GLOBAL_DATA_PTR;
  25
  26#define UART_PAD_CTRL   ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \
  27                         (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
  28                         (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
  29                         (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
  30
  31static iomux_cfg_t uart1_pads[] = {
  32        SC_P_UART1_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  33        SC_P_UART1_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  34};
  35
  36static void setup_iomux_uart(void)
  37{
  38        imx8_iomux_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
  39}
  40
  41void board_mem_get_layout(u64 *phys_sdram_1_start,
  42                          u64 *phys_sdram_1_size,
  43                          u64 *phys_sdram_2_start,
  44                          u64 *phys_sdram_2_size)
  45{
  46        u32 is_dualx = 0, val = 0;
  47        sc_err_t scierr = sc_misc_otp_fuse_read(-1, 6, &val);
  48
  49        if (scierr == SC_ERR_NONE) {
  50                /* DX has two A35 cores disabled */
  51                is_dualx = (val & 0xf) != 0x0;
  52        }
  53
  54        *phys_sdram_1_start = PHYS_SDRAM_1;
  55        if (is_dualx)
  56                /* Our DX based SKUs only have 1 GB RAM */
  57                *phys_sdram_1_size = SZ_1G;
  58        else
  59                *phys_sdram_1_size = PHYS_SDRAM_1_SIZE;
  60        *phys_sdram_2_start = PHYS_SDRAM_2;
  61        *phys_sdram_2_size = PHYS_SDRAM_2_SIZE;
  62}
  63
  64int board_early_init_f(void)
  65{
  66        sc_pm_clock_rate_t rate;
  67        sc_err_t err = 0;
  68
  69        /*
  70         * This works around that having only UART3 up the baudrate is 1.2M
  71         * instead of 115.2k. Set UART0 clock root to 80 MHz
  72         */
  73        rate = 80000000;
  74        err = sc_pm_set_clock_rate(-1, SC_R_UART_0, SC_PM_CLK_PER, &rate);
  75        if (err != SC_ERR_NONE)
  76                return 0;
  77
  78        /* Set UART3 clock root to 80 MHz and enable it */
  79        rate = SC_80MHZ;
  80        err = sc_pm_setup_uart(SC_R_UART_1, rate);
  81        if (err != SC_ERR_NONE)
  82                return 0;
  83
  84        setup_iomux_uart();
  85
  86        return 0;
  87}
  88
  89#if IS_ENABLED(CONFIG_DM_GPIO)
  90static void board_gpio_init(void)
  91{
  92        /* TODO */
  93}
  94#else
  95static inline void board_gpio_init(void) {}
  96#endif
  97
  98#if IS_ENABLED(CONFIG_FEC_MXC)
  99#include <miiphy.h>
 100
 101int board_phy_config(struct phy_device *phydev)
 102{
 103        if (phydev->drv->config)
 104                phydev->drv->config(phydev);
 105
 106        return 0;
 107}
 108#endif
 109
 110int checkboard(void)
 111{
 112        puts("Model: Toradex Apalis iMX8X\n");
 113
 114        build_info();
 115        print_bootinfo();
 116
 117        return 0;
 118}
 119
 120int board_init(void)
 121{
 122        board_gpio_init();
 123
 124        return 0;
 125}
 126
 127/*
 128 * Board specific reset that is system reset.
 129 */
 130void reset_cpu(void)
 131{
 132        /* TODO */
 133}
 134
 135#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
 136int ft_board_setup(void *blob, struct bd_info *bd)
 137{
 138        return ft_common_board_setup(blob, bd);
 139}
 140#endif
 141
 142int board_mmc_get_env_dev(int devno)
 143{
 144        return devno;
 145}
 146
 147int board_late_init(void)
 148{
 149#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 150/* TODO move to common */
 151        env_set("board_name", "Apalis iMX8X");
 152#endif
 153
 154        return 0;
 155}
 156