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#include <asm/global_data.h>
  10
  11#include <asm/arch/clock.h>
  12#include <asm/arch/imx8-pins.h>
  13#include <asm/arch/iomux.h>
  14#include <asm/arch/sci/sci.h>
  15#include <asm/arch/sys_proto.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 uart3_pads[] = {
  32        SC_P_FLEXCAN2_RX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL),
  33        SC_P_FLEXCAN2_TX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL),
  34        /* Transceiver FORCEOFF# signal, mux to use pull-up */
  35        SC_P_QSPI0B_DQS | MUX_MODE_ALT(4) | MUX_PAD_CTRL(UART_PAD_CTRL),
  36};
  37
  38static void setup_iomux_uart(void)
  39{
  40        imx8_iomux_setup_multiple_pads(uart3_pads, ARRAY_SIZE(uart3_pads));
  41}
  42
  43void board_mem_get_layout(u64 *phys_sdram_1_start,
  44                          u64 *phys_sdram_1_size,
  45                          u64 *phys_sdram_2_start,
  46                          u64 *phys_sdram_2_size)
  47{
  48        u32 is_dualx = 0, val = 0;
  49        sc_err_t scierr = sc_misc_otp_fuse_read(-1, 6, &val);
  50
  51        if (scierr == SC_ERR_NONE) {
  52                /* DX has two A35 cores disabled */
  53                is_dualx = (val & 0xf) != 0x0;
  54        }
  55
  56        *phys_sdram_1_start = PHYS_SDRAM_1;
  57        if (is_dualx)
  58                /* Our DX based SKUs only have 1 GB RAM */
  59                *phys_sdram_1_size = SZ_1G;
  60        else
  61                *phys_sdram_1_size = PHYS_SDRAM_1_SIZE;
  62        *phys_sdram_2_start = PHYS_SDRAM_2;
  63        *phys_sdram_2_size = PHYS_SDRAM_2_SIZE;
  64}
  65
  66int board_early_init_f(void)
  67{
  68        sc_pm_clock_rate_t rate;
  69        sc_err_t err = 0;
  70
  71        /*
  72         * This works around that having only UART3 up the baudrate is 1.2M
  73         * instead of 115.2k. Set UART0 clock root to 80 MHz
  74         */
  75        rate = 80000000;
  76        err = sc_pm_set_clock_rate(-1, SC_R_UART_0, SC_PM_CLK_PER, &rate);
  77        if (err != SC_ERR_NONE)
  78                return 0;
  79
  80        /* Set UART3 clock root to 80 MHz and enable it */
  81        rate = SC_80MHZ;
  82        err = sc_pm_setup_uart(SC_R_UART_3, rate);
  83        if (err != SC_ERR_NONE)
  84                return 0;
  85
  86        setup_iomux_uart();
  87
  88        return 0;
  89}
  90
  91#if IS_ENABLED(CONFIG_DM_GPIO)
  92static void board_gpio_init(void)
  93{
  94        /* TODO */
  95}
  96#else
  97static inline void board_gpio_init(void) {}
  98#endif
  99
 100#if IS_ENABLED(CONFIG_FEC_MXC)
 101#include <miiphy.h>
 102
 103int board_phy_config(struct phy_device *phydev)
 104{
 105        if (phydev->drv->config)
 106                phydev->drv->config(phydev);
 107
 108        return 0;
 109}
 110#endif
 111
 112int checkboard(void)
 113{
 114        puts("Model: Toradex Colibri iMX8X\n");
 115
 116        build_info();
 117        print_bootinfo();
 118
 119        return 0;
 120}
 121
 122int board_init(void)
 123{
 124        board_gpio_init();
 125
 126        return 0;
 127}
 128
 129/*
 130 * Board specific reset that is system reset.
 131 */
 132void reset_cpu(void)
 133{
 134        /* TODO */
 135}
 136
 137#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
 138int ft_board_setup(void *blob, struct bd_info *bd)
 139{
 140        return ft_common_board_setup(blob, bd);
 141}
 142#endif
 143
 144int board_mmc_get_env_dev(int devno)
 145{
 146        return devno;
 147}
 148
 149int board_late_init(void)
 150{
 151#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 152/* TODO move to common */
 153        env_set("board_name", "Colibri iMX8QXP");
 154        env_set("board_rev", "v1.0");
 155#endif
 156
 157        return 0;
 158}
 159