board: toradex: add Toradex SMARC iMX8MP

Add support for the Toradex SMARC iMX8MP.

Link: https://www.toradex.com/computer-on-modules/smarc-arm-family/nxp-imx-8m-plus
Link: https://www.toradex.com/products/carrier-board/smarc-development-board-kit
Signed-off-by: Vitor Soares <vitor.soares@toradex.com>

arch/arm/dts/imx8mp-toradex-smarc-dev-u-boot.dtsi

@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/* Copyright (C) 2024 Toradex */
+
+#include "imx8mp-u-boot.dtsi"
+
+/ {
+	sysinfo {
+		compatible = "toradex,sysinfo";
+	};
+};
+
+&gpio1 {
+	bootph-pre-ram;
+};
+
+&gpio2 {
+	bt_uart_gpio {
+		gpio-hog;
+		gpios = <9 GPIO_ACTIVE_HIGH>;
+		input;
+		line-name = "BT_UART_RXD_GPIO";
+	};
+};
+
+&gpio3 {
+	wifi_en_gpio {
+		gpio-hog;
+		gpios = <14 GPIO_ACTIVE_HIGH>;
+		output-high;
+		line-name = "CTRL_EN_WIFI";
+	};
+};
+
+&gpio5 {
+	bootph-pre-ram;
+};
+
+&i2c1 {
+	bootph-pre-ram;
+};
+
+&pca9450 {
+	bootph-pre-ram;
+
+	regulators {
+		bootph-pre-ram;
+	};
+};
+
+&pinctrl_i2c1 {
+	bootph-pre-ram;
+};
+
+&pinctrl_i2c1_gpio {
+	bootph-pre-ram;
+};
+
+&pinctrl_pmic {
+	bootph-pre-ram;
+};
+
+&pinctrl_uart4 {
+	bootph-pre-ram;
+};
+
+&uart3 {
+	status = "disabled";
+};
+
+&uart4 {
+	bootph-pre-ram;
+};
+
+&usdhc1 {
+	status = "disabled";
+};
+
+&usdhc3 {
+	bootph-pre-ram;
+};

arch/arm/dts/imx8mp-toradex-smarc-dev.dts

@@ -0,0 +1,297 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/* Copyright (C) 2025 Toradex */
+
+/dts-v1/;
+
+#include "imx8mp-toradex-smarc.dtsi"
+
+/ {
+	model = "Toradex SMARC iMX8M Plus on Toradex SMARC Development Board";
+	compatible = "toradex,smarc-imx8mp-dev",
+		     "toradex,smarc-imx8mp",
+		     "fsl,imx8mp";
+
+	hdmi-connector {
+		compatible = "hdmi-connector";
+		label = "J64";
+		type = "a";
+
+		port {
+			native_hdmi_connector_in: endpoint {
+				remote-endpoint = <&hdmi_tx_out>;
+			};
+		};
+	};
+
+	reg_carrier_1p8v: regulator-carrier-1p8v {
+		compatible = "regulator-fixed";
+		regulator-max-microvolt = <1800000>;
+		regulator-min-microvolt = <1800000>;
+		regulator-name = "On-carrier 1V8";
+	};
+
+	sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,bitclock-master = <&codec_dai>;
+		simple-audio-card,format = "i2s";
+		simple-audio-card,frame-master = <&codec_dai>;
+		simple-audio-card,mclk-fs = <256>;
+		simple-audio-card,name = "tdx-smarc-wm8904";
+		simple-audio-card,routing =
+			"Headphone Jack", "HPOUTL",
+			"Headphone Jack", "HPOUTR",
+			"IN2L", "Line In Jack",
+			"IN2R", "Line In Jack",
+			"Microphone Jack", "MICBIAS",
+			"IN1L", "Microphone Jack";
+		simple-audio-card,widgets =
+			"Microphone", "Microphone Jack",
+			"Headphone", "Headphone Jack",
+			"Line", "Line In Jack";
+
+		codec_dai: simple-audio-card,codec {
+			clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_SAI1_MCLK1>;
+			sound-dai = <&wm8904_1a>;
+		};
+
+		simple-audio-card,cpu {
+			sound-dai = <&sai1>;
+		};
+	};
+};
+
+&aud2htx {
+	status = "okay";
+};
+
+/* SMARC SPI0 */
+&ecspi1 {
+	status = "okay";
+};
+
+/* SMARC GBE0 */
+&eqos {
+	status = "okay";
+};
+
+/* SMARC GBE1 */
+&fec {
+	status = "okay";
+};
+
+/* SMARC CAN1 */
+&flexcan1 {
+	status = "okay";
+};
+
+/* SMARC CAN0 */
+&flexcan2 {
+	status = "okay";
+};
+
+&gpio1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gpio7>,
+		    <&pinctrl_gpio8>,
+		    <&pinctrl_gpio9>,
+		    <&pinctrl_gpio10>,
+		    <&pinctrl_gpio11>,
+		    <&pinctrl_gpio12>,
+		    <&pinctrl_gpio13>;
+};
+
+&gpio3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_lvds_dsi_sel>;
+};
+
+&gpio4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gpio4>, <&pinctrl_gpio6>;
+};
+
+&hdmi_pvi {
+	status = "okay";
+};
+
+/* SMARC HDMI */
+&hdmi_tx {
+	status = "okay";
+
+	ports {
+		port@1 {
+			hdmi_tx_out: endpoint {
+				remote-endpoint = <&native_hdmi_connector_in>;
+			};
+		};
+	};
+};
+
+&hdmi_tx_phy {
+	status = "okay";
+};
+
+/* SMARC I2C_LCD */
+&i2c2 {
+	status = "okay";
+
+	i2c-mux@70 {
+		compatible = "nxp,pca9543";
+		reg = <0x70>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		/* I2C on DSI Connector Pins 4/6 */
+		i2c_dsi_0: i2c@0 {
+			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		/* I2C on DSI Connector Pins 52/54 */
+		i2c_dsi_1: i2c@1 {
+			reg = <1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+	};
+};
+
+/* SMARC I2C_CAM0 */
+&i2c3 {
+	status = "okay";
+};
+
+/* SMARC I2C_GP */
+&i2c4 {
+	/* Audio Codec */
+	wm8904_1a: audio-codec@1a {
+		compatible = "wlf,wm8904";
+		reg = <0x1a>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_sai1>, <&pinctrl_sai1_mclk>;
+		#sound-dai-cells = <0>;
+		clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_SAI1_MCLK1>;
+		clock-names = "mclk";
+		AVDD-supply = <&reg_carrier_1p8v>;
+		CPVDD-supply = <&reg_carrier_1p8v>;
+		DBVDD-supply = <&reg_carrier_1p8v>;
+		DCVDD-supply = <&reg_carrier_1p8v>;
+		MICVDD-supply = <&reg_carrier_1p8v>;
+	};
+
+	/* On-Carrier Temperature Sensor */
+	temperature-sensor@4f {
+		compatible = "ti,tmp1075";
+		reg = <0x4f>;
+	};
+
+	/* On-Carrier EEPROM */
+	eeprom@57 {
+		compatible = "st,24c02", "atmel,24c02";
+		reg = <0x57>;
+		pagesize = <16>;
+	};
+};
+
+/* SMARC I2C_CAM1 */
+&i2c5 {
+	status = "okay";
+};
+
+/* SMARC I2C_PM */
+&i2c6 {
+	clock-frequency = <100000>;
+	status = "okay";
+
+	/* Fan controller */
+	fan@18 {
+		compatible = "ti,amc6821";
+		reg = <0x18>;
+	};
+
+	/* Current measurement into module VDD */
+	hwmon@40 {
+		compatible = "ti,ina226";
+		reg = <0x40>;
+		shunt-resistor = <5000>;
+	};
+};
+
+&lcdif3 {
+	status = "okay";
+};
+
+/* SMARC PCIE_A, M2 Key B */
+&pcie {
+	status = "okay";
+};
+
+&pcie_phy {
+	status = "okay";
+};
+
+/* SMARC LCD1_BKLT_PWM */
+&pwm1 {
+	status = "okay";
+};
+
+/* SMARC LCD0_BKLT_PWM */
+&pwm2 {
+	status = "okay";
+};
+
+/* SMARC I2S0 */
+&sai1 {
+	assigned-clocks = <&clk IMX8MP_CLK_SAI1>;
+	assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL1_OUT>;
+	assigned-clock-rates = <24576000>;
+	fsl,sai-mclk-direction-output;
+	status = "okay";
+};
+
+/* SMARC HDMI Audio */
+&sound_hdmi {
+	status = "okay";
+};
+
+/* SMARC SER0, RS485. Optional M.2 KEY E */
+&uart1 {
+	linux,rs485-enabled-at-boot-time;
+	rs485-rts-active-low;
+	rs485-rx-during-tx;
+	status = "okay";
+};
+
+/* SMARC SER2 */
+&uart2 {
+	status = "okay";
+};
+
+/* SMARC SER1, used as the Linux Console */
+&uart4 {
+	status = "okay";
+};
+
+/* SMARC USB0 */
+&usb3_0 {
+	status = "okay";
+};
+
+/* SMARC USB1..4 */
+&usb3_1 {
+	status = "okay";
+};
+
+&usb3_phy0 {
+	status = "okay";
+};
+
+&usb3_phy1 {
+	status = "okay";
+};
+
+/* SMARC SDIO */
+&usdhc2 {
+	status = "okay";
+};

arch/arm/mach-imx/imx8m/Kconfig

@@ -291,6 +291,12 @@ config TARGET_KONTRON_PITX_IMX8M
 	select IMX8MQ
 	select IMX8M_LPDDR4
 
+config TARGET_TORADEX_SMARC_IMX8MP
+	bool "Support Toradex SMARC iMX8M Plus module"
+	select IMX8MP
+	select SUPPORT_SPL
+	select IMX8M_LPDDR4
+
 config TARGET_VERDIN_IMX8MM
 	bool "Support Toradex Verdin iMX8M Mini module"
 	select IMX8MM
@@ -410,6 +416,7 @@ source "board/purism/librem5/Kconfig"
 source "board/ronetix/imx8mq-cm/Kconfig"
 source "board/technexion/pico-imx8mq/Kconfig"
 source "board/variscite/imx8mn_var_som/Kconfig"
+source "board/toradex/smarc-imx8mp/Kconfig"
 source "board/toradex/verdin-imx8mm/Kconfig"
 source "board/toradex/verdin-imx8mp/Kconfig"
 

board/toradex/common/tdx-cfg-block.c

@@ -165,6 +165,7 @@ const struct toradex_som toradex_modules[] = {
 	{ APALIS_IMX8QP_1300MHZ,                 "Apalis iMX8QP 2GB",                    TARGET_IS_ENABLED(APALIS_IMX8)     },
 	{ APALIS_IMX8QM_8GB_WIFI_BT_IT_1300MHZ,  "Apalis iMX8QM 8GB WB IT",              TARGET_IS_ENABLED(APALIS_IMX8)     },
 	{ SMARC_IMX95_HEXA_8GB_WB_IT,            "SMARC iMX95 Hexa 8GB WB IT",           TARGET_IS_ENABLED(TORADEX_SMARC_IMX95)  },
+	{ SMARC_IMX8MPQ_4GB_WB_IT,               "SMARC iMX8M Plus Quad 4GB WB IT",      TARGET_IS_ENABLED(TORADEX_SMARC_IMX8MP) },
 };
 
 struct pid4list {

board/toradex/common/tdx-cfg-block.h

@@ -123,6 +123,7 @@ enum {
 	APALIS_IMX8QP_1300MHZ,
 	APALIS_IMX8QM_8GB_WIFI_BT_IT_1300MHZ, /* 95 */
 	SMARC_IMX95_HEXA_8GB_WB_IT,
+	SMARC_IMX8MPQ_4GB_WB_IT,
 };
 
 enum {

board/toradex/smarc-imx8mp/Kconfig

@@ -0,0 +1,39 @@
+if TARGET_TORADEX_SMARC_IMX8MP
+
+config IMX_CONFIG
+	default "board/toradex/smarc-imx8mp/imximage.cfg"
+
+config SYS_BOARD
+	default "smarc-imx8mp"
+
+config SYS_CONFIG_NAME
+	default "toradex-smarc-imx8mp"
+
+config SYS_VENDOR
+	default "toradex"
+
+config TDX_CFG_BLOCK
+	default y
+
+config TDX_CFG_BLOCK_2ND_ETHADDR
+	default y
+
+config TDX_CFG_BLOCK_DEV
+	default "0"
+
+# Toradex config block in eMMC, at the end of 1st "boot sector"
+config TDX_CFG_BLOCK_OFFSET
+	default "-512"
+
+config TDX_CFG_BLOCK_PART
+	default "1"
+
+config TDX_HAVE_EEPROM_EXTRA
+	default y
+
+config TDX_HAVE_MMC
+	default y
+
+source "board/toradex/common/Kconfig"
+
+endif

board/toradex/smarc-imx8mp/MAINTAINERS

@@ -0,0 +1,10 @@
+Toradex Smarc iMX8M Plus
+F:	arch/arm/dts/imx8mp-toradex-smarc-dev-u-boot.dtsi
+F:	board/toradex/smarc-imx8mp/
+F:	board/toradex/common/
+F:	configs/toradex-smarc-imx8mp_defconfig
+F:	doc/board/toradex/toradex-smarc-imx8mp.rst
+F:	include/configs/toradex-smarc-imx8mp.h
+M:	Francesco Dolcini <francesco.dolcini@toradex.com>
+S:	Maintained
+W:	https://www.toradex.com/computer-on-modules/smarc-arm-family/nxp-imx-8m-plus

board/toradex/smarc-imx8mp/Makefile

@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (C) 2024 Toradex
+
+obj-y += smarc-imx8mp.o
+
+ifdef CONFIG_SPL_BUILD
+obj-y += spl.o
+obj-$(CONFIG_IMX8M_LPDDR4) += lpddr4_timing.o
+endif

board/toradex/smarc-imx8mp/imximage.cfg

@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* Copyright (C) 2024 Toradex */
+
+ROM_VERSION	v2
+BOOT_FROM	emmc_fastboot
+LOADER		u-boot-spl-ddr.bin	0x920000

board/toradex/smarc-imx8mp/lpddr4_timing.h

@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* Copyright (C) 2024 Toradex */
+
+#ifndef __LPDDR4_TIMING_H__
+#define __LPDDR4_TIMING_H__
+
+void lpddr4_single_rank_training_patch(void);
+
+#endif /* __LPDDR4_TIMING_H__ */

board/toradex/smarc-imx8mp/smarc-imx8mp.c

@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* Copyright (C) 2024 Toradex */
+
+#include <init.h>
+#include <asm/global_data.h>
+#include <asm-generic/gpio.h>
+#include <linux/errno.h>
+
+#include "../common/tdx-cfg-block.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_init(void)
+{
+	return 0;
+}
+
+int board_phys_sdram_size(phys_size_t *size)
+{
+	if (!size)
+		return -EINVAL;
+
+	*size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE + PHYS_SDRAM_2_SIZE);
+
+	return 0;
+}
+
+#if IS_ENABLED(CONFIG_OF_LIBFDT) && IS_ENABLED(CONFIG_OF_BOARD_SETUP)
+static bool board_has_wifi(void)
+{
+	struct gpio_desc *desc;
+
+	if (!gpio_hog_lookup_name("BT_UART_RXD_GPIO", &desc))
+		return !!dm_gpio_get_value(desc);
+
+	return true;
+}
+
+/*
+ * Module variants with a Wi-Fi/Bluetooth module use UART3 for Bluetooth,
+ * those without use UART3 as the SMARC SER3 UART.
+ * Test for a Wi-Fi module and if none found reassign UART3 interface to
+ * the SMARC SER3 pins.
+ */
+static void ft_board_assign_uart(void *blob)
+{
+	const char *uart_path = "/soc@0/bus@30800000/spba-bus@30800000/serial@30880000";
+	const char *pinctrl_path = "/soc@0/bus@30000000/pinctrl@30330000/uart3grp";
+	int pinctrl_offset;
+	int uart_offset;
+	int bt_offset;
+	u32 phandle;
+
+	if (board_has_wifi())
+		return;
+
+	uart_offset = fdt_path_offset(blob, uart_path);
+	if (uart_offset < 0)
+		return;
+
+	fdt_delprop(blob, uart_offset, "uart-has-rtscts");
+	bt_offset = fdt_subnode_offset(blob, uart_offset, "bluetooth");
+	if (bt_offset < 0)
+		return;
+
+	fdt_del_node(blob, bt_offset);
+
+	pinctrl_offset = fdt_path_offset(blob, pinctrl_path);
+	if (pinctrl_offset < 0)
+		return;
+
+	phandle = fdt_get_phandle(blob, pinctrl_offset);
+	if (phandle < 0)
+		return;
+
+	fdt_setprop_u32(blob, uart_offset, "pinctrl-0", phandle);
+}
+
+int ft_board_setup(void *blob, struct bd_info *bd)
+{
+	ft_board_assign_uart(blob);
+
+	return ft_common_board_setup(blob, bd);
+}
+#endif

board/toradex/smarc-imx8mp/smarc-imx8mp.env

@@ -0,0 +1,20 @@
+boot_script_dhcp=boot.scr
+boot_targets=mmc1 mmc0 dhcp
+console=ttymxc1
+fdt_addr_r=0x50200000
+fdt_board=dev
+initrd_addr=0x43800000
+initrd_high=0xffffffffffffffff
+kernel_addr_r=CONFIG_SYS_LOAD_ADDR
+kernel_comp_addr_r=0x40200000
+kernel_comp_size=0x08000000
+ramdisk_addr_r=0x50300000
+scriptaddr=0x50280000
+
+update_uboot=
+		askenv confirm Did you load flash.bin (y/N)?;
+		if test $confirm = y; then
+			setexpr blkcnt ${filesize} + 0x1ff && setexpr blkcnt
+			${blkcnt} / 0x200; mmc dev 0 1; mmc write ${loadaddr} 0x0
+			${blkcnt};
+		fi

board/toradex/smarc-imx8mp/spl.c

@@ -0,0 +1,130 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* Copyright (C) 2024 Toradex */
+
+#include <hang.h>
+#include <init.h>
+#include <log.h>
+#include <spl.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/ddr.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/global_data.h>
+#include <asm/mach-imx/boot_mode.h>
+#include <dm/device.h>
+#include <power/pmic.h>
+#include <power/pca9450.h>
+
+#include "lpddr4_timing.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int spl_board_boot_device(enum boot_device boot_dev_spl)
+{
+	return BOOT_DEVICE_BOOTROM;
+}
+
+void spl_dram_init(void)
+{
+	/*
+	 * Try configuring for dual rank memory falling back to single rank
+	 */
+	if (!ddr_init(&dram_timing)) {
+		puts("DDR configured as dual rank\n");
+		return;
+	}
+
+	lpddr4_single_rank_training_patch();
+	if (!ddr_init(&dram_timing)) {
+		puts("DDR configured as single rank\n");
+		return;
+	}
+	puts("DDR configuration failed\n");
+}
+
+void spl_board_init(void)
+{
+	arch_misc_init();
+
+	/*
+	 * Set GIC clock to 500Mhz for OD VDD_SOC. Kernel driver does
+	 * not allow to change it. Should set the clock after PMIC
+	 * setting done. Default is 400Mhz (system_pll1_800m with div = 2)
+	 * set by ROM for ND VDD_SOC
+	 */
+	clock_enable(CCGR_GIC, 0);
+	clock_set_target_val(GIC_CLK_ROOT, CLK_ROOT_ON | CLK_ROOT_SOURCE_SEL(5));
+	clock_enable(CCGR_GIC, 1);
+
+	puts("Normal Boot\n");
+}
+
+int power_init_board(void)
+{
+	struct udevice *dev;
+	int ret;
+
+	ret = pmic_get("pmic@25", &dev);
+	if (ret == -ENODEV) {
+		puts("No pmic@25\n");
+		return 0;
+	}
+	if (ret < 0)
+		return ret;
+
+	/* BUCKxOUT_DVS0/1 control BUCK123 output */
+	pmic_reg_write(dev, PCA9450_BUCK123_DVS, 0x29);
+
+	/*
+	 * Increase VDD_SOC to typical value 0.95V before first
+	 * DRAM access, set DVS1 to 0.85V for suspend.
+	 * Enable DVS control through PMIC_STBY_REQ and
+	 * set B1_ENMODE=1 (ON by PMIC_ON_REQ=H)
+	 */
+	if (IS_ENABLED(CONFIG_IMX8M_VDD_SOC_850MV))
+		/* set DVS0 to 0.85v for special case */
+		pmic_reg_write(dev, PCA9450_BUCK1OUT_DVS0, 0x14);
+	else
+		pmic_reg_write(dev, PCA9450_BUCK1OUT_DVS0, 0x1c);
+
+	pmic_reg_write(dev, PCA9450_BUCK1OUT_DVS1, 0x14);
+	pmic_reg_write(dev, PCA9450_BUCK1CTRL, 0x59);
+
+	/*
+	 * Kernel uses OD/OD freq for SOC.
+	 * To avoid timing risk from SOC to ARM,increase VDD_ARM to OD
+	 * voltage 0.95V.
+	 */
+	pmic_reg_write(dev, PCA9450_BUCK2OUT_DVS0, 0x1c);
+
+	/* set LDO4 and CONFIG2 to enable the I2C level translator */
+	pmic_reg_write(dev, PCA9450_LDO4CTRL, 0x59);
+	pmic_reg_write(dev, PCA9450_CONFIG2, 0x1);
+
+	return 0;
+}
+
+/* Do not use BSS area in this phase */
+void board_init_f(ulong dummy)
+{
+	int ret;
+
+	arch_cpu_init();
+
+	init_uart_clk(3);
+
+	ret = spl_early_init();
+	if (ret) {
+		debug("spl_init() failed: %d\n", ret);
+		hang();
+	}
+
+	preloader_console_init();
+
+	enable_tzc380();
+
+	/* PMIC initialization */
+	power_init_board();
+
+	/* DDR initialization */
+	spl_dram_init();
+}

configs/toradex-smarc-imx8mp_defconfig

@@ -0,0 +1,184 @@
+CONFIG_ARM=y
+CONFIG_ARCH_IMX8M=y
+CONFIG_TEXT_BASE=0x40200000
+CONFIG_SPL_GPIO=y
+CONFIG_SPL_LIBCOMMON_SUPPORT=y
+CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_NR_DRAM_BANKS=2
+CONFIG_ENV_SIZE=0x2000
+CONFIG_ENV_OFFSET=0xFFFFDE00
+CONFIG_DM_GPIO=y
+CONFIG_DEFAULT_DEVICE_TREE="imx8mp-toradex-smarc-dev"
+CONFIG_SPL_TEXT_BASE=0x920000
+CONFIG_TARGET_TORADEX_SMARC_IMX8MP=y
+CONFIG_OF_LIBFDT_OVERLAY=y
+CONFIG_DM_RESET=y
+CONFIG_SYS_MONITOR_LEN=524288
+CONFIG_SPL_MMC=y
+CONFIG_SPL_SERIAL=y
+CONFIG_SPL_DRIVERS_MISC=y
+CONFIG_SPL_STACK=0x960000
+CONFIG_SPL_SYS_MALLOC_F_LEN=0x4000
+CONFIG_SPL_HAS_BSS_LINKER_SECTION=y
+CONFIG_SPL_BSS_START_ADDR=0x98fc00
+CONFIG_SPL_BSS_MAX_SIZE=0x400
+CONFIG_SPL=y
+CONFIG_IMX_BOOTAUX=y
+CONFIG_SPL_IMX_ROMAPI_LOADADDR=0x48000000
+CONFIG_SYS_LOAD_ADDR=0x48200000
+CONFIG_PCI=y
+CONFIG_SYS_MEMTEST_START=0x40000000
+CONFIG_SYS_MEMTEST_END=0x80000000
+CONFIG_REMAKE_ELF=y
+CONFIG_FIT=y
+CONFIG_FIT_EXTERNAL_OFFSET=0x3000
+CONFIG_FIT_VERBOSE=y
+CONFIG_SPL_LOAD_FIT=y
+CONFIG_BOOTSTD_FULL=y
+# CONFIG_BOOTSTD_BOOTCOMMAND is not set
+CONFIG_BOOTDELAY=1
+CONFIG_OF_SYSTEM_SETUP=y
+CONFIG_BOOTCOMMAND="bootflow scan -b"
+CONFIG_USE_PREBOOT=y
+CONFIG_PREBOOT="test -n ${fdtfile} || setenv fdtfile imx8mp-toradex-smarc-dev.dtb"
+CONFIG_SYS_CBSIZE=2048
+CONFIG_SYS_PBSIZE=2081
+CONFIG_LOG=y
+# CONFIG_DISPLAY_BOARDINFO is not set
+CONFIG_DISPLAY_BOARDINFO_LATE=y
+CONFIG_ARCH_MISC_INIT=y
+CONFIG_SPL_MAX_SIZE=0x26000
+CONFIG_SPL_BOARD_INIT=y
+CONFIG_SPL_BOOTROM_SUPPORT=y
+CONFIG_SPL_SYS_MALLOC_SIMPLE=y
+# CONFIG_SPL_SHARES_INIT_SP_ADDR is not set
+CONFIG_SPL_SYS_MALLOC=y
+CONFIG_SPL_HAS_CUSTOM_MALLOC_START=y
+CONFIG_SPL_CUSTOM_SYS_MALLOC_ADDR=0x42200000
+CONFIG_SPL_SYS_MALLOC_SIZE=0x80000
+CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR=y
+CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0x300
+CONFIG_SPL_I2C=y
+CONFIG_SPL_POWER=y
+CONFIG_SPL_WATCHDOG=y
+CONFIG_SYS_PROMPT="SMARC iMX8MP # "
+# CONFIG_BOOTM_NETBSD is not set
+CONFIG_CMD_ASKENV=y
+# CONFIG_CMD_EXPORTENV is not set
+CONFIG_CRC32_VERIFY=y
+CONFIG_CMD_MD5SUM=y
+CONFIG_MD5SUM_VERIFY=y
+CONFIG_CMD_MEMTEST=y
+CONFIG_CMD_CLK=y
+CONFIG_CMD_FUSE=y
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_PCI=y
+CONFIG_CMD_READ=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_USB_MASS_STORAGE=y
+CONFIG_CMD_BOOTCOUNT=y
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_TIME=y
+CONFIG_CMD_SYSBOOT=y
+CONFIG_CMD_UUID=y
+CONFIG_CMD_REGULATOR=y
+CONFIG_CMD_EXT4_WRITE=y
+# CONFIG_ISO_PARTITION is not set
+# CONFIG_SPL_EFI_PARTITION is not set
+CONFIG_OF_CONTROL=y
+CONFIG_SPL_OF_CONTROL=y
+CONFIG_ENV_OVERWRITE=y
+CONFIG_ENV_IS_IN_MMC=y
+CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+CONFIG_SYS_MMC_ENV_DEV=0
+CONFIG_SYS_MMC_ENV_PART=1
+CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
+CONFIG_USE_ETHPRIME=y
+CONFIG_ETHPRIME="eth0"
+CONFIG_VERSION_VARIABLE=y
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_IP_DEFRAG=y
+CONFIG_TFTP_BLOCKSIZE=4096
+CONFIG_SPL_DM=y
+CONFIG_BOOTCOUNT_LIMIT=y
+CONFIG_BOOTCOUNT_ENV=y
+CONFIG_CLK_COMPOSITE_CCF=y
+CONFIG_CLK_IMX8MP=y
+CONFIG_FSL_CAAM=y
+CONFIG_USB_FUNCTION_FASTBOOT=y
+CONFIG_FASTBOOT_BUF_ADDR=0x44200000
+CONFIG_FASTBOOT_FLASH=y
+CONFIG_FASTBOOT_UUU_SUPPORT=y
+CONFIG_FASTBOOT_FLASH_MMC_DEV=0
+CONFIG_GPIO_HOG=y
+CONFIG_SPL_GPIO_HOG=y
+CONFIG_MXC_GPIO=y
+CONFIG_DM_PCA953X=y
+CONFIG_DM_I2C=y
+CONFIG_LED=y
+CONFIG_LED_GPIO=y
+CONFIG_I2C_EEPROM=y
+CONFIG_SUPPORT_EMMC_BOOT=y
+CONFIG_MMC_IO_VOLTAGE=y
+CONFIG_SPL_MMC_IO_VOLTAGE=y
+CONFIG_MMC_UHS_SUPPORT=y
+CONFIG_SPL_MMC_UHS_SUPPORT=y
+CONFIG_MMC_HS400_ES_SUPPORT=y
+CONFIG_MMC_HS400_SUPPORT=y
+CONFIG_SPL_MMC_HS400_SUPPORT=y
+CONFIG_FSL_USDHC=y
+CONFIG_PHY_ADDR_ENABLE=y
+CONFIG_PHY_TI_DP83867=y
+CONFIG_DM_MDIO=y
+CONFIG_DM_ETH_PHY=y
+CONFIG_DWC_ETH_QOS=y
+CONFIG_DWC_ETH_QOS_IMX=y
+CONFIG_FEC_MXC=y
+CONFIG_RGMII=y
+CONFIG_MII=y
+CONFIG_NVME_PCI=y
+CONFIG_PCIE_DW_IMX=y
+CONFIG_PHY=y
+CONFIG_PHY_IMX8MQ_USB=y
+CONFIG_PHY_IMX8M_PCIE=y
+CONFIG_PINCTRL=y
+CONFIG_SPL_PINCTRL=y
+CONFIG_PINCTRL_IMX8M=y
+CONFIG_POWER_DOMAIN=y
+CONFIG_IMX8M_POWER_DOMAIN=y
+CONFIG_IMX8MP_HSIOMIX_BLKCTRL=y
+CONFIG_DM_PMIC=y
+CONFIG_DM_PMIC_PCA9450=y
+CONFIG_SPL_DM_PMIC_PCA9450=y
+CONFIG_DM_REGULATOR_PCA9450=y
+CONFIG_SPL_DM_REGULATOR_PCA9450=y
+CONFIG_DM_REGULATOR_FIXED=y
+CONFIG_DM_REGULATOR_GPIO=y
+CONFIG_DM_SERIAL=y
+CONFIG_MXC_UART=y
+CONFIG_SYSRESET=y
+CONFIG_SPL_SYSRESET=y
+CONFIG_SYSRESET_PSCI=y
+CONFIG_SYSRESET_WATCHDOG=y
+CONFIG_DM_THERMAL=y
+CONFIG_IMX_TMU=y
+CONFIG_USB=y
+# CONFIG_SPL_DM_USB is not set
+CONFIG_DM_USB_GADGET=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_DWC3=y
+CONFIG_USB_XHCI_DWC3_OF_SIMPLE=y
+CONFIG_USB_EHCI_HCD=y
+# CONFIG_USB_EHCI_MX7 is not set
+CONFIG_USB_DWC3=y
+CONFIG_USB_DWC3_GENERIC=y
+CONFIG_USB_KEYBOARD=y
+CONFIG_USB_HOST_ETHER=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_MANUFACTURER="Toradex"
+CONFIG_USB_GADGET_VENDOR_NUM=0x1b67
+CONFIG_USB_GADGET_PRODUCT_NUM=0x4000
+CONFIG_IMX_WATCHDOG=y
+CONFIG_HEXDUMP=y

doc/board/toradex/index.rst

@@ -9,6 +9,7 @@ Toradex
    apalis-imx8
    colibri_imx7
    colibri-imx8x
+   smarc-imx8mp
    verdin-am62
    verdin-imx8mm
    verdin-imx8mp

doc/board/toradex/smarc-imx8mp.rst

@@ -0,0 +1,116 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+Toradex SMARC iMX8M Plus Module
+===============================
+
+- SoM: https://www.toradex.com/computer-on-modules/smarc-arm-family/nxp-imx-8m-plus
+- Carrier board: https://www.toradex.com/products/carrier-board/smarc-development-board-kit
+
+Quick Start
+-----------
+
+- Build the ARM trusted firmware binary
+- Get the DDR firmware
+- Build U-Boot
+- Flash to eMMC
+- Boot
+
+Get and Build the ARM Trusted Firmware (Trusted Firmware A)
+-----------------------------------------------------------
+
+.. code-block:: bash
+
+    $ echo "Downloading and building TF-A..."
+    $ git clone https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git
+    $ cd trusted-firmware-a
+
+Then build ATF (TF-A):
+
+.. code-block:: bash
+
+    $ export CROSS_COMPILE=aarch64-linux-gnu-
+    $ make PLAT=imx8mp IMX_BOOT_UART_BASE=0x30a60000 bl31
+    $ cp build/imx8mp/release/bl31.bin ../
+
+Get the DDR Firmware
+--------------------
+
+.. code-block:: bash
+
+    $ cd ..
+    $ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-8.10.1.bin
+    $ chmod +x firmware-imx-8.10.1.bin
+    $ ./firmware-imx-8.10.1.bin
+    $ cp firmware-imx-8.10.1/firmware/ddr/synopsys/lpddr4*_202006.bin ./
+
+Build U-Boot
+------------
+
+.. code-block:: bash
+
+    $ export CROSS_COMPILE=aarch64-linux-gnu-
+    $ make toradex-smarc-imx8mp_defconfig
+    $ make
+
+Flash to eMMC
+-------------
+
+.. code-block:: bash
+
+    > tftpboot ${loadaddr} flash.bin
+    > setexpr blkcnt ${filesize} + 0x1ff && setexpr blkcnt ${blkcnt} / 0x200
+    > mmc dev 0 1 && mmc write ${loadaddr} 0x0 ${blkcnt}
+
+As a convenience, instead of the last two commands, one may also use the update
+U-Boot wrapper:
+
+.. code-block:: bash
+
+    > run update_uboot
+
+Boot
+----
+
+ATF, U-Boot proper and u-boot.dtb images are packed into a FIT image,
+which is loaded and parsed by SPL.
+
+Boot sequence is:
+
+* SPL ---> ATF (TF-A) ---> U-Boot proper
+
+Output::
+
+  U-Boot SPL 2025.04-rc5-00023-g34c31be81211 (Apr 04 2025 - 15:36:23 +0100)
+  Training FAILED
+  DDR configured as single rank
+  SEC0:  RNG instantiated
+  Normal Boot
+  Trying to boot from BOOTROM
+  Boot Stage: Primary boot
+  Find img info 0x4802f200, size 1100
+  Need continue download 1024
+  NOTICE:  Do not release JR0 to NS as it can be used by HAB
+  NOTICE:  BL31: v2.11.0(release):v2.11.0-723-gbd298f5c30ac
+  NOTICE:  BL31: Built : 14:18:43, Apr  4 2025
+
+
+  U-Boot 2025.04-rc5-00023-g34c31be81211 (Apr 04 2025 - 15:36:23 +0100)
+
+  CPU:   Freescale i.MX8MP[8] rev1.1 1600 MHz (running at 1200 MHz)
+  CPU:   Industrial temperature grade (-40C to 105C) at 72C
+  Reset cause: POR
+  DRAM:  4 GiB
+  Core:  312 devices, 32 uclasses, devicetree: separate
+  WDT:   Started watchdog@30280000 with servicing every 1000ms (60s timeout)
+  MMC:   FSL_SDHC: 1, FSL_SDHC: 0
+  Loading Environment from MMC... Reading from MMC(0)... OK
+  In:    serial@30a60000
+  Out:   serial@30a60000
+  Err:   serial@30a60000
+  Model: Toradex 0097 SMARC iMX8M Plus Quad 4GB WB IT V1.0A
+  Serial#: 15603364
+  SEC0:  RNG instantiated
+  Net:   Get shared mii bus on ethernet@30be0000
+  eth1: ethernet@30be0000, eth0: ethernet@30bf0000 [PRIME]
+  Hit any key to stop autoboot:  0
+  SMARC iMX8MP #

include/configs/toradex-smarc-imx8mp.h

@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* Copyright (C) 2024 Toradex */
+
+#ifndef __TORADEX_SMARC_IMX8MP_H
+#define __TORADEX_SMARC_IMX8MP_H
+
+#include <asm/arch/imx-regs.h>
+#include <linux/sizes.h>
+
+#define CFG_SYS_UBOOT_BASE	\
+	(QSPI0_AMBA_BASE + CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR * 512)
+
+#ifdef CONFIG_SPL_BUILD
+/* malloc f used before GD_FLG_FULL_MALLOC_INIT set */
+#define CFG_MALLOC_F_ADDR	0x184000
+#endif /* CONFIG_SPL_BUILD */
+
+#define CFG_SYS_INIT_RAM_ADDR	0x40000000
+#define CFG_SYS_INIT_RAM_SIZE	SZ_512K
+
+/* i.MX 8M Plus supports max. 8GB memory in two albeit consecutive banks */
+#define CFG_SYS_SDRAM_BASE	0x40000000
+#define PHYS_SDRAM		0x40000000
+#define PHYS_SDRAM_SIZE		(SZ_2G + SZ_1G)
+#define PHYS_SDRAM_2		0x100000000
+#define PHYS_SDRAM_2_SIZE	(SZ_4G + SZ_1G)
+
+#endif /* __TORADEX_SMARC_IMX8MP_H */