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