mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-27 13:23:44 +09:00
7ce134b7c3
This commit adds initial support for the Toradex Colibri iMX8QXP 2GB 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 and MMC/SD card - Ethernet - GPIOs - I2C Unfortunately, there is no USB functionality for the i.MX 8QXP as of yet. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Reviewed-by: Igor Opaniuk <igor.opaniuk@toradex.com>
161 lines
3.2 KiB
C
161 lines
3.2 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 uart3_pads[] = {
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SC_P_FLEXCAN2_RX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL),
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SC_P_FLEXCAN2_TX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL),
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/* Transceiver FORCEOFF# signal, mux to use pull-up */
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SC_P_QSPI0B_DQS | MUX_MODE_ALT(4) | 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(uart3_pads, ARRAY_SIZE(uart3_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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/*
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* This works around that having only UART3 up the baudrate is 1.2M
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* instead of 115.2k. Set UART0 clock root to 80 MHz
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*/
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rate = 80000000;
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err = sc_pm_set_clock_rate(-1, SC_R_UART_0, SC_PM_CLK_PER, &rate);
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if (err != SC_ERR_NONE)
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return 0;
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/* Power up UART3 */
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err = sc_pm_set_resource_power_mode(-1, SC_R_UART_3, 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_3, 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 UART3 clock root */
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err = sc_pm_clock_enable(-1, SC_R_UART_3, 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 Colibri iMX8X\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", "Colibri iMX8QXP");
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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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