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

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright 2019 Toradex
   4 */
   5
   6#include <common.h>
   7#include <init.h>
   8
   9#include <asm/arch/clock.h>
  10#include <asm/arch/imx8-pins.h>
  11#include <asm/arch/iomux.h>
  12#include <asm/arch/sci/sci.h>
  13#include <asm/arch/sys_proto.h>
  14#include <asm/gpio.h>
  15#include <asm/io.h>
  16#include <env.h>
  17#include <errno.h>
  18#include <linux/libfdt.h>
  19
  20#include "../common/tdx-cfg-block.h"
  21
  22DECLARE_GLOBAL_DATA_PTR;
  23
  24#define UART_PAD_CTRL   ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \
  25                         (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
  26                         (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
  27                         (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
  28
  29static iomux_cfg_t uart3_pads[] = {
  30        SC_P_FLEXCAN2_RX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL),
  31        SC_P_FLEXCAN2_TX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL),
  32        /* Transceiver FORCEOFF# signal, mux to use pull-up */
  33        SC_P_QSPI0B_DQS | MUX_MODE_ALT(4) | MUX_PAD_CTRL(UART_PAD_CTRL),
  34};
  35
  36static void setup_iomux_uart(void)
  37{
  38        imx8_iomux_setup_multiple_pads(uart3_pads, ARRAY_SIZE(uart3_pads));
  39}
  40
  41int board_early_init_f(void)
  42{
  43        sc_pm_clock_rate_t rate;
  44        sc_err_t err = 0;
  45
  46        /*
  47         * This works around that having only UART3 up the baudrate is 1.2M
  48         * instead of 115.2k. Set UART0 clock root to 80 MHz
  49         */
  50        rate = 80000000;
  51        err = sc_pm_set_clock_rate(-1, SC_R_UART_0, SC_PM_CLK_PER, &rate);
  52        if (err != SC_ERR_NONE)
  53                return 0;
  54
  55        /* Set UART3 clock root to 80 MHz and enable it */
  56        rate = SC_80MHZ;
  57        err = sc_pm_setup_uart(SC_R_UART_3, rate);
  58        if (err != SC_ERR_NONE)
  59                return 0;
  60
  61        setup_iomux_uart();
  62
  63        return 0;
  64}
  65
  66#if IS_ENABLED(CONFIG_DM_GPIO)
  67static void board_gpio_init(void)
  68{
  69        /* TODO */
  70}
  71#else
  72static inline void board_gpio_init(void) {}
  73#endif
  74
  75#if IS_ENABLED(CONFIG_FEC_MXC)
  76#include <miiphy.h>
  77
  78int board_phy_config(struct phy_device *phydev)
  79{
  80        if (phydev->drv->config)
  81                phydev->drv->config(phydev);
  82
  83        return 0;
  84}
  85#endif
  86
  87int checkboard(void)
  88{
  89        puts("Model: Toradex Colibri iMX8X\n");
  90
  91        build_info();
  92        print_bootinfo();
  93
  94        return 0;
  95}
  96
  97int board_init(void)
  98{
  99        board_gpio_init();
 100
 101        return 0;
 102}
 103
 104void detail_board_ddr_info(void)
 105{
 106        puts("\nDDR    ");
 107}
 108
 109/*
 110 * Board specific reset that is system reset.
 111 */
 112void reset_cpu(ulong addr)
 113{
 114        /* TODO */
 115}
 116
 117#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
 118int ft_board_setup(void *blob, bd_t *bd)
 119{
 120        return ft_common_board_setup(blob, bd);
 121}
 122#endif
 123
 124int board_mmc_get_env_dev(int devno)
 125{
 126        return devno;
 127}
 128
 129int board_late_init(void)
 130{
 131#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 132/* TODO move to common */
 133        env_set("board_name", "Colibri iMX8QXP");
 134        env_set("board_rev", "v1.0");
 135#endif
 136
 137        return 0;
 138}
 139