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 <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 uart3_pads[] = {
  31        SC_P_FLEXCAN2_RX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL),
  32        SC_P_FLEXCAN2_TX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL),
  33        /* Transceiver FORCEOFF# signal, mux to use pull-up */
  34        SC_P_QSPI0B_DQS | MUX_MODE_ALT(4) | MUX_PAD_CTRL(UART_PAD_CTRL),
  35};
  36
  37static void setup_iomux_uart(void)
  38{
  39        imx8_iomux_setup_multiple_pads(uart3_pads, ARRAY_SIZE(uart3_pads));
  40}
  41
  42int board_early_init_f(void)
  43{
  44        sc_pm_clock_rate_t rate;
  45        sc_err_t err = 0;
  46
  47        /*
  48         * This works around that having only UART3 up the baudrate is 1.2M
  49         * instead of 115.2k. Set UART0 clock root to 80 MHz
  50         */
  51        rate = 80000000;
  52        err = sc_pm_set_clock_rate(-1, SC_R_UART_0, SC_PM_CLK_PER, &rate);
  53        if (err != SC_ERR_NONE)
  54                return 0;
  55
  56        /* Set UART3 clock root to 80 MHz and enable it */
  57        rate = SC_80MHZ;
  58        err = sc_pm_setup_uart(SC_R_UART_3, rate);
  59        if (err != SC_ERR_NONE)
  60                return 0;
  61
  62        setup_iomux_uart();
  63
  64        return 0;
  65}
  66
  67#if IS_ENABLED(CONFIG_DM_GPIO)
  68static void board_gpio_init(void)
  69{
  70        /* TODO */
  71}
  72#else
  73static inline void board_gpio_init(void) {}
  74#endif
  75
  76#if IS_ENABLED(CONFIG_FEC_MXC)
  77#include <miiphy.h>
  78
  79int board_phy_config(struct phy_device *phydev)
  80{
  81        if (phydev->drv->config)
  82                phydev->drv->config(phydev);
  83
  84        return 0;
  85}
  86#endif
  87
  88int checkboard(void)
  89{
  90        puts("Model: Toradex Colibri iMX8X\n");
  91
  92        build_info();
  93        print_bootinfo();
  94
  95        return 0;
  96}
  97
  98int board_init(void)
  99{
 100        board_gpio_init();
 101
 102        return 0;
 103}
 104
 105/*
 106 * Board specific reset that is system reset.
 107 */
 108void reset_cpu(ulong addr)
 109{
 110        /* TODO */
 111}
 112
 113#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
 114int ft_board_setup(void *blob, struct bd_info *bd)
 115{
 116        return ft_common_board_setup(blob, bd);
 117}
 118#endif
 119
 120int board_mmc_get_env_dev(int devno)
 121{
 122        return devno;
 123}
 124
 125int board_late_init(void)
 126{
 127#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 128/* TODO move to common */
 129        env_set("board_name", "Colibri iMX8QXP");
 130        env_set("board_rev", "v1.0");
 131#endif
 132
 133        return 0;
 134}
 135