bsh: imx6ulz_smm_m2: Add imx6ulz BSH SMM M2 boards

Introduce BSH SystemMaster (SMM) M2 board family, which consists of:
imx6ulz SMM M2 and imx6ulz SMM M2 PRO boards.

Add support for imx6ulz BSH SMM M2 board:

- 128 MiB DDR3 RAM
- 256MiB Nand
- USBOTG1 peripheral - fastboot.

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>

arch/arm/dts/Makefile

@@ -895,6 +895,7 @@ dtb-$(CONFIG_MX6ULL) += \
 	imx6ull-phytec-segin-ff-rdk-emmc.dtb \
 	imx6ull-dart-6ul.dtb \
 	imx6ull-somlabs-visionsom.dtb \
+	imx6ulz-bsh-smm-m2.dtb \
 	imx6ulz-14x14-evk.dtb
 
 dtb-$(CONFIG_ARCH_MX6) += \

arch/arm/dts/imx6ulz-bsh-smm-m2-u-boot.dtsi

@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2022 BSH Hausgeraete GmbH
+ *
+ * Author: Michael Trimarchi <michael@amarulasolutions.com>
+ */
+
+&{/soc} {
+	u-boot,dm-pre-reloc;
+};
+
+&aips2 {
+	u-boot,dm-pre-reloc;
+};
+
+&iomuxc {
+	u-boot,dm-pre-reloc;
+};
+
+&iomuxc_snvs {
+	u-boot,dm-pre-reloc;
+};
+
+&uart4 {
+	u-boot,dm-pre-reloc;
+};
+
+&pinctrl_uart4 {
+	u-boot,dm-pre-reloc;
+};
+
+&gpmi {
+	u-boot,dm-spl;
+	u-boot,dm-pre-reloc;
+};

arch/arm/dts/imx6ulz-bsh-smm-m2.dts

@@ -0,0 +1,146 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2021 BSH Hausgeraete GmbH
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/input/input.h>
+#include "imx6ulz.dtsi"
+
+/ {
+	model = "BSH SMM M2";
+	compatible = "bsh,imx6ulz-bsh-smm-m2", "fsl,imx6ull", "fsl,imx6ulz";
+
+	chosen {
+		stdout-path = &uart4;
+	};
+
+	usdhc2_pwrseq: usdhc2-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		reset-gpios = <&gpio2 21 GPIO_ACTIVE_LOW>;
+	};
+};
+
+&gpmi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gpmi_nand>;
+	nand-on-flash-bbt;
+	status = "okay";
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart3>;
+	uart-has-rtscts;
+	status = "okay";
+
+	bluetooth {
+		compatible = "brcm,bcm4330-bt";
+		max-speed = <3000000>;
+		shutdown-gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>;
+		device-wakeup-gpios = <&gpio2 17 GPIO_ACTIVE_HIGH>;
+		host-wakeup-gpios = <&gpio2 13 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart4>;
+	status = "okay";
+};
+
+&usbotg1 {
+	dr_mode = "peripheral";
+	srp-disable;
+	hnp-disable;
+	adp-disable;
+	status = "okay";
+};
+
+&usbphy1 {
+	fsl,tx-d-cal = <106>;
+};
+
+&usdhc2 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wlan>;
+	bus-width = <4>;
+	no-1-8-v;
+	non-removable;
+	cap-power-off-card;
+	keep-power-in-suspend;
+	cap-sdio-irq;
+	mmc-pwrseq = <&usdhc2_pwrseq>;
+	status = "okay";
+
+	brcmf: wifi@1 {
+		reg = <1>;
+		compatible = "brcm,bcm4329-fmac";
+		interrupt-parent = <&gpio1>;
+		interrupts = <18 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "host-wake";
+	};
+};
+
+&wdog1 {
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl_gpmi_nand: gpmi-nand {
+		fsl,pins = <
+			MX6UL_PAD_NAND_CLE__RAWNAND_CLE		0xb0b1
+			MX6UL_PAD_NAND_ALE__RAWNAND_ALE		0xb0b1
+			MX6UL_PAD_NAND_WP_B__RAWNAND_WP_B	0xb0b1
+			MX6UL_PAD_NAND_READY_B__RAWNAND_READY_B	0xb000
+			MX6UL_PAD_NAND_CE0_B__RAWNAND_CE0_B	0xb0b1
+			MX6UL_PAD_NAND_RE_B__RAWNAND_RE_B	0xb0b1
+			MX6UL_PAD_NAND_WE_B__RAWNAND_WE_B	0xb0b1
+			MX6UL_PAD_NAND_DATA00__RAWNAND_DATA00	0xb0b1
+			MX6UL_PAD_NAND_DATA01__RAWNAND_DATA01	0xb0b1
+			MX6UL_PAD_NAND_DATA02__RAWNAND_DATA02	0xb0b1
+			MX6UL_PAD_NAND_DATA03__RAWNAND_DATA03	0xb0b1
+			MX6UL_PAD_NAND_DATA04__RAWNAND_DATA04	0xb0b1
+			MX6UL_PAD_NAND_DATA05__RAWNAND_DATA05	0xb0b1
+			MX6UL_PAD_NAND_DATA06__RAWNAND_DATA06	0xb0b1
+			MX6UL_PAD_NAND_DATA07__RAWNAND_DATA07	0xb0b1
+		>;
+	};
+
+	pinctrl_uart3: uart3grp {
+		fsl,pins = <
+			MX6UL_PAD_UART3_TX_DATA__UART3_DCE_TX	0x1b0b1
+			MX6UL_PAD_UART3_RX_DATA__UART3_DCE_RX	0x1b099
+			MX6UL_PAD_UART3_RTS_B__UART3_DCE_RTS	0x1b0b1
+			MX6UL_PAD_UART3_CTS_B__UART3_DCE_CTS	0x1b099
+			MX6UL_PAD_GPIO1_IO01__GPIO1_IO01	0x79		/* BT_REG_ON */
+			MX6UL_PAD_SD1_CLK__GPIO2_IO17		0x100b1		/* BT_DEV_WAKE out */
+			MX6UL_PAD_ENET2_TX_EN__GPIO2_IO13	0x1b0b0		/* BT_HOST_WAKE in */
+		>;
+	};
+
+	pinctrl_uart4: uart4grp {
+		fsl,pins = <
+			MX6UL_PAD_UART4_TX_DATA__UART4_DCE_TX	0x1b0b1
+			MX6UL_PAD_UART4_RX_DATA__UART4_DCE_RX	0x1b0b1
+		>;
+	};
+
+	pinctrl_wlan: wlangrp {
+		fsl,pins = <
+			MX6UL_PAD_CSI_HSYNC__USDHC2_CMD		0x17059
+			MX6UL_PAD_CSI_VSYNC__USDHC2_CLK		0x10059
+			MX6UL_PAD_CSI_DATA00__USDHC2_DATA0	0x17059
+			MX6UL_PAD_CSI_DATA01__USDHC2_DATA1	0x17059
+			MX6UL_PAD_CSI_DATA02__USDHC2_DATA2	0x17059
+			MX6UL_PAD_CSI_DATA03__USDHC2_DATA3	0x17059
+			MX6UL_PAD_SD1_DATA3__GPIO2_IO21		0x79		/* WL_REG_ON */
+			MX6UL_PAD_UART2_CTS_B__GPIO1_IO22	0x100b1		/* WL_DEV_WAKE - WiFi_GPIO_4 - WiFi FW UART */
+			MX6UL_PAD_UART1_CTS_B__GPIO1_IO18	0x1b0b1		/* WL_HOST_WAKE - WIFI_GPIO_0 - OOB IRQ */
+			MX6UL_PAD_ENET1_RX_EN__OSC32K_32K_OUT	0x4001b031	/* OSC 32Khz wifi clk in */
+		>;
+	};
+};

arch/arm/mach-imx/mx6/Kconfig

@@ -466,6 +466,17 @@ config TARGET_MX6ULL_14X14_EVK
 	select DM_THERMAL
 	imply CMD_DM
 
+config TARGET_MX6ULZ_SMM_M2
+	bool "Support imx6ulz_smm_m2"
+	depends on MX6ULL
+	select DM
+	select DM_GPIO
+	select DM_I2C
+	select DM_SERIAL
+	select DM_MTD
+	select DM_THERMAL
+	select SUPPORT_SPL
+
 config TARGET_MYS_6ULX
 	bool "MYiR MYS-6ULX"
 	depends on MX6ULL
@@ -680,6 +691,7 @@ source "board/ge/b1x5v2/Kconfig"
 source "board/aristainetos/Kconfig"
 source "board/armadeus/opos6uldev/Kconfig"
 source "board/boundary/nitrogen6x/Kconfig"
+source "board/bsh/imx6ulz_smm_m2/Kconfig"
 source "board/bticino/mamoj/Kconfig"
 source "board/compulab/cm_fx6/Kconfig"
 source "board/dhelectronics/dh_imx6/Kconfig"

board/bsh/imx6ulz_smm_m2/Kconfig

@@ -0,0 +1,12 @@
+if TARGET_MX6ULZ_SMM_M2
+
+config SYS_BOARD
+	default "imx6ulz_smm_m2"
+
+config SYS_VENDOR
+	default "bsh"
+
+config SYS_CONFIG_NAME
+	default "imx6ulz_smm_m2"
+
+endif

board/bsh/imx6ulz_smm_m2/MAINTAINERS

@@ -0,0 +1,6 @@
+MX6ULZ_SMM_M2 BOARD
+M:	Michael Trimarchi <michael@amarulasolutions.com>
+S:	Maintained
+F:	board/bsh/mx6ulz_smm_m2/
+F:	include/configs/imx6ulz_smm_m2.h
+F:	configs/imx6ulz_smm_m2_defconfig

board/bsh/imx6ulz_smm_m2/Makefile

@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
+# (C) Copyright 2021 Amarula Solutions B.V.
+
+obj-y  := imx6ulz_smm_m2.o
+obj-$(CONFIG_SPL_BUILD) += spl.o
+

board/bsh/imx6ulz_smm_m2/README

@@ -0,0 +1,67 @@
+How to Update U-Boot on imx6ulz_smm_m2 board
+--------------------------------------------
+
+Required software on the host PC:
+
+- UUU: https://github.com/NXPmicro/mfgtools
+
+Build U-Boot for m2:
+
+$ make mrproper
+$ make imx6ulz_smm_m2_defconfig
+$ make
+
+This generates the SPL and u-boot-dtb.img binaries.
+
+1. Loading U-Boot via USB Serial Download Protocol
+
+Copy SPL and u-boot-dtb.img to the uuu folder.
+
+Load the U-Boot via USB:
+
+$ sudo uuu -v -b nand_script.lst u-boot-with-spl.imx
+
+where nand_script.lst contains the following:
+
+uuu_version 1.2.39
+
+# @_flash.bin            | bootloader
+# @_image   [_flash.bin] | image burn to nand, default is the same as bootloader
+
+# This command will be run when i.MX6/7 i.MX8MM, i.MX8MQ
+SDP: boot -f _flash.bin
+
+# This command will be run when ROM support stream mode
+# i.MX8QXP, i.MX8QM
+SDPS: boot -f _flash.bin
+
+# These commands will be run when use SPL and will be skipped if no spl
+# SDPU will be deprecated. please use SDPV instead of SDPU
+# {
+SDPU: delay 1000
+SDPU: write -f _flash.bin -offset 0x57c00
+SDPU: jump
+# }
+
+# These commands will be run when use SPL and will be skipped if no spl
+# if (SPL support SDPV)
+# {
+SDPV: delay 1000
+SDPV: write -f _flash.bin -offset 0x11000
+SDPV: jump
+# }
+
+FB: ucmd setenv fastboot_buffer ${loadaddr}
+FB: download -f _image
+FB: ucmd if test ! -n "$fastboot_bytes"; then setenv fastboot_bytes $filesize; else true; fi
+# Burn image to nandfit partition if needed
+FB: ucmd if env exists nandfit_part; then nand erase.part nandfit; nand write ${fastboot_buffer} nandfit ${fastboot_bytes}; else true; fi;
+FB: ucmd nandbcb init ${fastboot_buffer} nandboot ${fastboot_bytes}
+FB: Done
+
+Then U-Boot starts and its messages appear in the console program.
+
+Use the default environment variables:
+
+=> env default -f -a
+=> saveenv

board/bsh/imx6ulz_smm_m2/imx6ulz_smm_m2.c

@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ *
+ * Copyright (C) 2021 BSH Hausgeraete GmbH
+ */
+
+#include <init.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/arch/mx6-pins.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/mach-imx/boot_mode.h>
+#include <asm/global_data.h>
+#include <asm/gpio.h>
+#include <common.h>
+#include <env.h>
+#include <linux/sizes.h>
+
+static void setup_gpmi_nand(void)
+{
+	setup_gpmi_io_clk((MXC_CCM_CS2CDR_ENFC_CLK_PODF(0) |
+			   MXC_CCM_CS2CDR_ENFC_CLK_PRED(3) |
+			   MXC_CCM_CS2CDR_ENFC_CLK_SEL(3)));
+};
+
+int dram_init(void)
+{
+	gd->ram_size = imx_ddr_size();
+
+	return 0;
+}
+
+int board_init(void)
+{
+	/* Address of boot parameters */
+	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+	setup_gpmi_nand();
+
+	return 0;
+}
+
+int board_late_init(void)
+{
+	if (is_boot_from_usb()) {
+		env_set("bootcmd", "run bootcmd_mfg");
+		env_set("bootdelay", "0");
+	}
+
+	return 0;
+}

board/bsh/imx6ulz_smm_m2/spl.c

@@ -0,0 +1,130 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <common.h>
+#include <cpu_func.h>
+#include <hang.h>
+#include <init.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/arch/mx6ull_pins.h>
+#include <asm/arch/mx6-pins.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/gpio.h>
+#include <asm/mach-imx/iomux-v3.h>
+#include <asm/mach-imx/boot_mode.h>
+#include <linux/libfdt.h>
+#include <spl.h>
+#include <asm/arch/mx6-ddr.h>
+
+#define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
+		       PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
+		       PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
+
+static const iomux_v3_cfg_t uart4_pads[] = {
+	MX6_PAD_UART4_TX_DATA__UART4_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
+	MX6_PAD_UART4_RX_DATA__UART4_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+static void setup_iomux_uart(void)
+{
+	imx_iomux_v3_setup_multiple_pads(uart4_pads, ARRAY_SIZE(uart4_pads));
+}
+
+static struct mx6ul_iomux_grp_regs mx6_grp_ioregs = {
+	.grp_addds		= 0x00000028,
+	.grp_ddrmode_ctl	= 0x00020000,
+	.grp_b0ds		= 0x00000028,
+	.grp_ctlds		= 0x00000028,
+	.grp_b1ds		= 0x00000028,
+	.grp_ddrpke		= 0x00000000,
+	.grp_ddrmode		= 0x00020000,
+	.grp_ddr_type		= 0x000c0000,
+};
+
+static struct mx6ul_iomux_ddr_regs mx6_ddr_ioregs = {
+	.dram_dqm0		= 0x00000028,
+	.dram_dqm1		= 0x00000028,
+	.dram_ras		= 0x00000028,
+	.dram_cas		= 0x00000028,
+	.dram_odt0		= 0x00000028,
+	.dram_odt1		= 0x00000028,
+	.dram_sdba2		= 0x00000000,
+	.dram_sdclk_0		= 0x00000028,
+	.dram_sdqs0		= 0x00000028,
+	.dram_sdqs1		= 0x00000028,
+	.dram_reset		= 0x000c0028,
+};
+
+static struct mx6_mmdc_calibration mx6_mmcd_calib = {
+	.p0_mpwldectrl0		= 0x00000000,
+	.p0_mpwldectrl1		= 0x00100010,
+	.p0_mpdgctrl0		= 0x414c014c,
+	.p0_mpdgctrl1		= 0x00000000,
+	.p0_mprddlctl		= 0x40403a42,
+	.p0_mpwrdlctl		= 0x4040342e,
+};
+
+static struct mx6_ddr_sysinfo ddr_sysinfo = {
+	.dsize			= 0,
+	.cs1_mirror		= 0,
+	.cs_density		= 32,
+	.ncs			= 1,
+	.bi_on			= 1,
+	.rtt_nom		= 1,
+	.rtt_wr			= 0,
+	.ralat			= 5,
+	.walat			= 1,
+	.mif3_mode		= 3,
+	.rst_to_cke		= 0x23,	/* 33 cycles (JEDEC value for DDR3) - total of 500 us */
+	.sde_to_rst		= 0x10,	/* 14 cycles (JEDEC value for DDR3) - total of 200 us */
+	.refsel			= 1,
+	.refr			= 3,
+};
+
+static struct mx6_ddr3_cfg mem_ddr = {
+	.mem_speed		= 1333,
+	.density		= 2,
+	.width			= 16,
+	.banks			= 8,
+	.rowaddr		= 13,
+	.coladdr		= 10,
+	.pagesz			= 2,
+	.trcd			= 1350,
+	.trcmin			= 4950,
+	.trasmin		= 3600,
+};
+
+static void ccgr_init(void)
+{
+	struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
+
+	writel(0xFFFFFFFF, &ccm->CCGR0);
+	writel(0xFFFFFFFF, &ccm->CCGR1);
+	writel(0xFFFFFFFF, &ccm->CCGR2);
+	writel(0xFFFFFFFF, &ccm->CCGR3);
+	writel(0xFFFFFFFF, &ccm->CCGR4);
+	writel(0xFFFFFFFF, &ccm->CCGR5);
+	writel(0xFFFFFFFF, &ccm->CCGR6);
+}
+
+static void imx6ul_spl_dram_cfg(void)
+{
+	mx6ul_dram_iocfg(mem_ddr.width, &mx6_ddr_ioregs, &mx6_grp_ioregs);
+	mx6_dram_cfg(&ddr_sysinfo, &mx6_mmcd_calib, &mem_ddr);
+}
+
+void board_init_f(ulong dummy)
+{
+	ccgr_init();
+	arch_cpu_init();
+	timer_init();
+	setup_iomux_uart();
+	preloader_console_init();
+	imx6ul_spl_dram_cfg();
+}
+
+void reset_cpu(void)
+{
+}

configs/imx6ulz_smm_m2_defconfig

@@ -0,0 +1,80 @@
+CONFIG_ARM=y
+CONFIG_ARCH_MX6=y
+CONFIG_SYS_TEXT_BASE=0x87800000
+CONFIG_SYS_MALLOC_LEN=0x1000000
+CONFIG_SYS_MALLOC_F_LEN=0x18000
+CONFIG_SPL_GPIO=y
+CONFIG_SPL_LIBCOMMON_SUPPORT=y
+CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_ENV_SIZE=0x20000
+CONFIG_ENV_OFFSET=0x400000
+CONFIG_MX6ULL=y
+CONFIG_TARGET_MX6ULZ_SMM_M2=y
+CONFIG_DEFAULT_DEVICE_TREE="imx6ulz-bsh-smm-m2"
+CONFIG_SPL_TEXT_BASE=0x00908000
+CONFIG_SPL_SERIAL=y
+CONFIG_SPL=y
+CONFIG_DISTRO_DEFAULTS=y
+CONFIG_FIT=y
+CONFIG_FIT_SIGNATURE=y
+CONFIG_FIT_VERBOSE=y
+CONFIG_LEGACY_IMAGE_FORMAT=y
+CONFIG_BOOTDELAY=3
+CONFIG_BOARD_LATE_INIT=y
+CONFIG_SPL_BSS_START_ADDR=0x84100000
+CONFIG_SYS_SPL_MALLOC=y
+CONFIG_SPL_DMA=y
+CONFIG_SPL_MTD_SUPPORT=y
+CONFIG_SPL_NAND_SUPPORT=y
+CONFIG_SPL_USB_HOST=y
+CONFIG_SPL_USB_GADGET=y
+CONFIG_SPL_USB_SDP_SUPPORT=y
+CONFIG_SPL_WATCHDOG=y
+CONFIG_CMD_DM=y
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_USB_SDP=y
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_MTDPARTS=y
+CONFIG_MTDIDS_DEFAULT="nand0=gpmi-nand"
+CONFIG_MTDPARTS_DEFAULT="mtdparts=gpmi-nand:4m(nandboot),1m(env),8m(kernel),1m(nanddtb),-(rootfs)"
+CONFIG_CMD_UBI=y
+# CONFIG_ISO_PARTITION is not set
+CONFIG_OF_CONTROL=y
+CONFIG_ENV_OVERWRITE=y
+CONFIG_ENV_IS_IN_NAND=y
+CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+# CONFIG_NET is not set
+CONFIG_BOUNCE_BUFFER=y
+CONFIG_USB_FUNCTION_FASTBOOT=y
+CONFIG_FASTBOOT_BUF_ADDR=0x82000000
+CONFIG_FASTBOOT_FLASH=y
+CONFIG_FASTBOOT_UUU_SUPPORT=y
+CONFIG_FASTBOOT_FLASH_NAND=y
+CONFIG_SYS_I2C_MXC=y
+# CONFIG_MMC is not set
+CONFIG_MTD=y
+CONFIG_MTD_RAW_NAND=y
+CONFIG_SYS_NAND_USE_FLASH_BBT=y
+CONFIG_NAND_MXS=y
+CONFIG_NAND_MXS_DT=y
+CONFIG_SYS_NAND_ONFI_DETECTION=y
+CONFIG_SYS_NAND_U_BOOT_LOCATIONS=y
+CONFIG_SYS_NAND_U_BOOT_OFFS=0x111400
+CONFIG_SYS_NAND_U_BOOT_OFFS_REDUND=0x291400
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_IMX6=y
+CONFIG_DM_PMIC=y
+CONFIG_DM_REGULATOR=y
+CONFIG_DM_REGULATOR_FIXED=y
+CONFIG_MXC_UART=y
+CONFIG_IMX_THERMAL=y
+CONFIG_USB=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_MANUFACTURER="BSH"
+CONFIG_USB_GADGET_VENDOR_NUM=0x0525
+CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
+CONFIG_CI_UDC=y
+CONFIG_SDP_LOADADDR=0x877fffc0

include/configs/imx6ulz_smm_m2.h

@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2021 Amarula Solutions B.V.
+ *
+ */
+#ifndef __IMX6ULZ_SMM_M2_CONFIG_H
+#define __IMX6ULZ_SMM_M2_CONFIG_H
+
+#include "mx6_common.h"
+
+#include <asm/arch/imx-regs.h>
+#include <linux/sizes.h>
+#include <linux/stringify.h>
+
+/* SPL options */
+#include "imx6_spl.h"
+
+#define CONFIG_MXC_UART_BASE		UART4_BASE
+
+#ifndef CONFIG_SPL_BUILD
+
+#define BOOT_TARGET_DEVICES(func) \
+	func(NAND, nand, 0) \
+
+#include <config_distro_bootcmd.h>
+
+#endif /* !CONFIG_SPL_BUILD */
+
+#define MEM_LAYOUT_ENV_SETTINGS \
+	"scriptaddr=" __stringify(CONFIG_SYS_LOAD_ADDR) "\0" \
+	"kernel_addr_r=" __stringify(CONFIG_SYS_LOAD_ADDR) "\0" \
+	"fdt_addr_r=0x81000000\0" \
+	"fdtfile=" CONFIG_DEFAULT_FDT_FILE "\0" \
+	"bootcmd_mfg=echo Running fastboot mode; fastboot usb 0\0" \
+
+#define NANDARGS \
+	"mtdids=" CONFIG_MTDIDS_DEFAULT "\0" \
+	CONFIG_MTDPARTS_DEFAULT "\0" \
+	"nandargs=setenv bootargs " \
+		"${optargs} " \
+		"mtdparts=${mtdparts} " \
+		"root=${nandroot} " \
+		"rootfstype=${nandrootfstype}\0" \
+	"nandroot=ubi0:root rw ubi.mtd=rootfs\0" \
+	"nandrootfstype=ubifs rootwait=1\0" \
+	"nandboot=echo Booting from nand ...; " \
+		"run nandargs; " \
+		"nand read ${fdt_addr_r} nanddtb; " \
+		"nand read ${loadaddr} kernel; " \
+		"bootz ${loadaddr} - ${fdt_addr_r}\0"
+
+#define BOOTENV_DEV_NAND(devtypeu, devtypel, instance) \
+	"bootcmd_" #devtypel #instance "=" \
+	"run nandboot\0"
+
+#define BOOTENV_DEV_NAME_NAND(devtypeu, devtypel, instance) \
+	#devtypel #instance " "
+
+/* Initial environment variables */
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	MEM_LAYOUT_ENV_SETTINGS \
+	NANDARGS \
+	BOOTENV
+
+/* Physical Memory Map */
+#define PHYS_SDRAM			MMDC0_ARB_BASE_ADDR
+#define PHYS_SDRAM_SIZE			SZ_128M
+
+#define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM
+#define CONFIG_SYS_INIT_RAM_ADDR	IRAM_BASE_ADDR
+#define CONFIG_SYS_INIT_RAM_SIZE	IRAM_SIZE
+
+/* NAND */
+#define CONFIG_SYS_MAX_NAND_DEVICE	1
+
+#define CONFIG_SYS_NAND_BASE		0x20000000
+
+#endif