mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-12 22:26:16 +09:00
3d60366500
This commit adds initial support for the Toradex Apalis iMX8QM 4GB WB IT V1.0B module. Unlike the V1.0A early access samples exclusively booting from SD card, they are now strapped to boot from eFuses which are factory fused to properly boot from their on-module eMMC. U-Boot supports either booting from the on-module eMMC or may be used for recovery purpose using the universal update utility (uuu) aka mfgtools 3.0. Functionality wise the following is known to be working: - eMMC, 8-bit and 4-bit MMC/SD card slots - Gigabit Ethernet - GPIOs - I2C Unfortunately, there is no USB functionality for the i.MX 8QM as of yet. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Reviewed-by: Max Krummenacher <max.krummenacher@toradex.com>
150 lines
2.7 KiB
C
150 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2019 Toradex
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*/
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#include <common.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/imx8-pins.h>
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#include <asm/arch/iomux.h>
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#include <asm/arch/sci/sci.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/gpio.h>
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#include <asm/io.h>
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#include <environment.h>
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#include <errno.h>
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#include <linux/libfdt.h>
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#include "../common/tdx-cfg-block.h"
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DECLARE_GLOBAL_DATA_PTR;
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#define UART_PAD_CTRL ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \
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(SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
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(SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
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(SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
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static iomux_cfg_t uart1_pads[] = {
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SC_P_UART1_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
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SC_P_UART1_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
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};
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static void setup_iomux_uart(void)
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{
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imx8_iomux_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
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}
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int board_early_init_f(void)
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{
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sc_pm_clock_rate_t rate;
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sc_err_t err = 0;
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/* Power up UART1 */
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err = sc_pm_set_resource_power_mode(-1, SC_R_UART_1, SC_PM_PW_MODE_ON);
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if (err != SC_ERR_NONE)
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return 0;
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/* Set UART3 clock root to 80 MHz */
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rate = 80000000;
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err = sc_pm_set_clock_rate(-1, SC_R_UART_1, SC_PM_CLK_PER, &rate);
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if (err != SC_ERR_NONE)
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return 0;
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/* Enable UART1 clock root */
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err = sc_pm_clock_enable(-1, SC_R_UART_1, SC_PM_CLK_PER, true, false);
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if (err != SC_ERR_NONE)
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return 0;
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setup_iomux_uart();
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return 0;
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}
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#if IS_ENABLED(CONFIG_DM_GPIO)
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static void board_gpio_init(void)
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{
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/* TODO */
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}
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#else
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static inline void board_gpio_init(void) {}
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#endif
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#if IS_ENABLED(CONFIG_FEC_MXC)
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#include <miiphy.h>
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int board_phy_config(struct phy_device *phydev)
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{
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if (phydev->drv->config)
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phydev->drv->config(phydev);
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return 0;
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}
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#endif
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void build_info(void)
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{
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u32 sc_build = 0, sc_commit = 0;
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/* Get SCFW build and commit id */
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sc_misc_build_info(-1, &sc_build, &sc_commit);
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if (!sc_build) {
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printf("SCFW does not support build info\n");
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sc_commit = 0; /* Display 0 if build info not supported */
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}
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printf("Build: SCFW %x\n", sc_commit);
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}
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int checkboard(void)
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{
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puts("Model: Toradex Apalis iMX8\n");
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build_info();
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print_bootinfo();
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return 0;
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}
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int board_init(void)
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{
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board_gpio_init();
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return 0;
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}
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void detail_board_ddr_info(void)
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{
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puts("\nDDR ");
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}
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/*
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* Board specific reset that is system reset.
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*/
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void reset_cpu(ulong addr)
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{
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/* TODO */
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}
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#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
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int ft_board_setup(void *blob, bd_t *bd)
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{
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return ft_common_board_setup(blob, bd);
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}
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#endif
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int board_mmc_get_env_dev(int devno)
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{
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return devno;
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}
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int board_late_init(void)
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{
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#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
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/* TODO move to common */
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env_set("board_name", "Apalis iMX8QM");
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env_set("board_rev", "v1.0");
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#endif
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return 0;
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}
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