LXR uboot/board/advantech/imx8qm_rom7720_a1/imx8qm_rom7720

   1// SPDX-License-Identifier:     GPL-2.0+
   2/*
   3 * Copyright 2017-2018 NXP
   4 * Copyright (C) 2019 Oliver Graute <oliver.graute@kococonnector.com>
   5 */
   6
   7#include <common.h>
   8#include <cpu_func.h>
   9#include <env.h>
  10#include <errno.h>
  11#include <init.h>
  12#include <linux/delay.h>
  13#include <linux/libfdt.h>
  14#include <asm/io.h>
  15#include <asm/gpio.h>
  16#include <asm/arch/clock.h>
  17#include <asm/arch/sci/sci.h>
  18#include <asm/arch/imx8-pins.h>
  19#include <asm/arch/iomux.h>
  20#include <asm/arch/sys_proto.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 uart0_pads[] = {
  30        SC_P_UART0_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  31        SC_P_UART0_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  32};
  33
  34static void setup_iomux_uart(void)
  35{
  36        imx8_iomux_setup_multiple_pads(uart0_pads, ARRAY_SIZE(uart0_pads));
  37}
  38
  39int board_early_init_f(void)
  40{
  41        sc_pm_clock_rate_t rate = SC_80MHZ;
  42        int ret;
  43
  44        /* Set UART0 clock root to 80 MHz */
  45        ret = sc_pm_setup_uart(SC_R_UART_0, rate);
  46        if (ret)
  47                return ret;
  48
  49        setup_iomux_uart();
  50
  51        /* This is needed to because Kernel do not Power Up DC_0 */
  52        sc_pm_set_resource_power_mode(-1, SC_R_DC_0, SC_PM_PW_MODE_ON);
  53        sc_pm_set_resource_power_mode(-1, SC_R_GPIO_5, SC_PM_PW_MODE_ON);
  54
  55        return 0;
  56}
  57
  58#if IS_ENABLED(CONFIG_FEC_MXC)
  59#include <miiphy.h>
  60
  61int board_phy_config(struct phy_device *phydev)
  62{
  63#ifdef CONFIG_FEC_ENABLE_MAX7322
  64        u8 value;
  65
  66        /* This is needed to drive the pads to 1.8V instead of 1.5V */
  67        i2c_set_bus_num(CONFIG_MAX7322_I2C_BUS);
  68
  69        if (!i2c_probe(CONFIG_MAX7322_I2C_ADDR)) {
  70                /* Write 0x1 to enable O0 output, this device has no addr */
  71                /* hence addr length is 0 */
  72                value = 0x1;
  73                if (dm_i2c_write(CONFIG_MAX7322_I2C_ADDR, 0, 0, &value, 1))
  74                        printf("MAX7322 write failed\n");
  75        } else {
  76                printf("MAX7322 Not found\n");
  77        }
  78        mdelay(1);
  79#endif
  80
  81        phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
  82        phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);
  83
  84        phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x00);
  85        phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x82ee);
  86        phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
  87        phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);
  88
  89        if (phydev->drv->config)
  90                phydev->drv->config(phydev);
  91
  92        return 0;
  93}
  94#endif
  95
  96int checkboard(void)
  97{
  98        puts("Board: ROM-7720-A1 4GB\n");
  99
 100        build_info();
 101        print_bootinfo();
 102
 103        return 0;
 104}
 105
 106int board_init(void)
 107{
 108        /* Power up base board */
 109        sc_pm_set_resource_power_mode(-1, SC_R_BOARD_R1, SC_PM_PW_MODE_ON);
 110
 111        return 0;
 112}
 113
 114/*
 115 * Board specific reset that is system reset.
 116 */
 117void reset_cpu(ulong addr)
 118{
 119        /* TODO */
 120}
 121
 122int board_mmc_get_env_dev(int devno)
 123{
 124        return devno;
 125}
 126
 127int board_late_init(void)
 128{
 129#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 130        env_set("board_name", "ROM-7720-A1");
 131        env_set("board_rev", "iMX8QM");
 132#endif
 133
 134        env_set("sec_boot", "no");
 135#ifdef CONFIG_AHAB_BOOT
 136        env_set("sec_boot", "yes");
 137#endif
 138
 139        return 0;
 140}
 141