add support for imx8mn-ddr4-evk

meta-lmp-base/recipes-bsp/u-boot/u-boot-fio_2021.04.bb

@@ -1,5 +1,5 @@
 require u-boot-fio-common.inc
 
-SRCREV = "a376f0f8012fd026a01a73f2e9b31f060924c20b"
+SRCREV = "d5976b6253dcae875fb42fbef68e1d05e7de5141"
 SRCBRANCH = "2021.04+imx_5.10.35-2.0.0-fio"
 LIC_FILES_CHKSUM = "file://Licenses/README;md5=5a7450c57ffe5ae63fd732446b988025"

meta-lmp-base/recipes-kernel/linux/kmeta-linux-lmp-5.10.y.inc

@@ -1,4 +1,4 @@
 KERNEL_META_REPO ?= "git://github.com/foundriesio/lmp-kernel-cache.git"
 KERNEL_META_REPO_PROTOCOL ?= "https"
 KERNEL_META_BRANCH ?= "linux-v5.10.y"
-KERNEL_META_COMMIT ?= "cf3fa2a9cd915d4536da813b19f2e5481c5809c9"
+KERNEL_META_COMMIT ?= "ec9e983bd2db7e87f853a09060a8c13898e21c01"

meta-lmp-base/recipes-kernel/linux/kmeta-linux-lmp-5.15.y.inc

@@ -1,4 +1,4 @@
 KERNEL_META_REPO ?= "git://github.com/foundriesio/lmp-kernel-cache.git"
 KERNEL_META_REPO_PROTOCOL ?= "https"
 KERNEL_META_BRANCH ?= "linux-v5.15.y"
-KERNEL_META_COMMIT ?= "8203249516013fc2fd292da5d204d802808868c0"
+KERNEL_META_COMMIT ?= "0d5ce625850b47b72ac5fff68922f25e77202eca"

meta-lmp-bsp/conf/machine/include/lmp-machine-custom.inc

@@ -403,6 +403,36 @@ WKS_FILE:sota:imx8mp-lpddr4-evk-ebbr ?= "efidisk-sota.wks.in"
 # imx8mp comes with an AzureWave CM276MA PCIe Card
 MACHINE_FEATURES:append:imx8mp-lpddr4-evk = " nxp89xx mxm-mwifiex-load"
 
+# iMX8MN
+UBOOT_SIGN_ENABLE:sota:mx8mn-generic-bsp = "1"
+IMX_DEFAULT_BOOTLOADER:mx8mn-generic-bsp ?= "u-boot-fio"
+UBOOT_DTB_LOADADDRESS:mx8mn-generic-bsp = "0x43000000"
+PREFERRED_PROVIDER_virtual/trusted-firmware-a:mx8mn-generic-bsp ?= "imx-atf"
+EXTRA_IMAGEDEPENDS:append:mx8mn-generic-bsp = "virtual/trusted-firmware-a"
+UBOOT_CLASSES:mx8mn-generic-bsp = "uboot-fitimage"
+ATF_BINARY:mx8mn-generic-bsp = "arm-trusted-firmware.bin"
+UBOOT_CONFIG:mx8mn-generic-bsp = ""
+LMP_BOOT_FIRMWARE_FILES:mx8mn-generic-bsp = "imx-boot u-boot.itb"
+IMAGE_BOOT_FILES:mx8mn-generic-bsp = "imx-boot u-boot.itb ${KERNEL_IMAGETYPE} ${@make_dtb_boot_files(d)} boot.scr uEnv.txt"
+IMAGE_BOOT_FILES:sota:mx8mn-generic-bsp = "boot.itb"
+WKS_FILE_DEPENDS:append:mx8mn-generic-bsp = " u-boot-default-script imx-boot"
+PREFERRED_PROVIDER_u-boot-default-script:mx8mn-generic-bsp = "u-boot-base-scr"
+PREFERRED_PROVIDER_u-boot-default-script:sota:mx8mn-generic-bsp = "u-boot-ostree-scr-fit"
+KERNEL_IMAGETYPE:sota:mx8mn-generic-bsp = "fitImage"
+KERNEL_CLASSES:sota:mx8mn-generic-bsp = " kernel-lmp-fitimage "
+## iMX8: Use latest NXP BSP downstream kernel
+PREFERRED_PROVIDER_virtual/kernel:mx8mn-generic-bsp ?= "linux-lmp-fslc-imx"
+MACHINE_FIRMWARE:mx8mn-generic-bsp = "linux-firmware-imx-sdma-imx7d"
+WKS_FILE:sota:mx8mn-generic-bsp = "sdimage-imx8-spl-sota.wks.in"
+IMXBOOT_TARGETS:mx8mn-generic-bsp = "flash_evk_spl_ddr4"
+# iMX8MN DDR4 EVK
+KMACHINE:imx8mn-ddr4-evk = "imx8mn-evk"
+OSTREE_KERNEL_ARGS:imx8mn-ddr4-evk ?= "console=tty1 console=ttymxc1,115200 earlycon=ec_imx6q,0x30890000,115200 root=/dev/mmcblk2p2 rootfstype=ext4"
+SOTA_CLIENT_FEATURES:append:imx8mn-ddr4-evk = " ubootenv"
+UBOOT_MACHINE:imx8mn-ddr4-evk = "imx8mn_ddr4_evk_config"
+BOOTSCR_LOAD_ADDR:imx8mn-ddr4-evk = "0x44800000"
+MACHINE_EXTRA_RRECOMMENDS:append:imx8mn-ddr4-evk = " bluetooth-attach-conf"
+
 # STM32MP1
 PREFERRED_PROVIDER_virtual/kernel:stm32mp1common ?= "linux-lmp"
 PREFERRED_PROVIDER_virtual/bootloader:stm32mp1common = "u-boot-fio"

meta-lmp-bsp/conf/machine/include/lmp-mfgtool-machine-custom.inc

@@ -60,6 +60,14 @@ IMAGE_BOOT_FILES:mx8mm-nxp-bsp  = "imx-boot u-boot.itb boot.itb"
 KERNEL_IMAGETYPE:mx8mm-generic-bsp = "fitImage"
 KERNEL_CLASSES:mx8mm-generic-bsp = " kernel-lmp-fitimage "
 
+# iMX8MN
+UBOOT_SIGN_ENABLE:mx8mn-generic-bsp = "1"
+IMX_DEFAULT_BOOTLOADER:mx8mn-generic-bsp ?= "u-boot-fio-mfgtool"
+PREFERRED_PROVIDER_u-boot-default-script:mx8mn-generic-bsp = "u-boot-ostree-scr"
+IMAGE_BOOT_FILES:mx8mn-nxp-bsp  = "imx-boot u-boot.itb boot.itb"
+KERNEL_IMAGETYPE:mx8mn-generic-bsp = "fitImage"
+KERNEL_CLASSES:mx8mn-generic-bsp = " kernel-lmp-fitimage "
+
 # Apalis-iMX6
 UBOOT_SIGN_ENABLE:apalis-imx6 = "1"
 PREFERRED_PROVIDER_virtual/kernel:apalis-imx6 = "linux-lmp-dev-mfgtool"

meta-lmp-bsp/dynamic-layers/freescale-layer/recipes-bsp/imx-atf/imx-atf/0001-plat-imx8mn-implement-system_reset2.patch

@@ -0,0 +1,27 @@
+From 159a2308a6d6f59bd1c91b3952c57b1bb83bc090 Mon Sep 17 00:00:00 2001
+From: Michael Scott <[email protected]>
+Date: Sun, 27 Mar 2022 20:58:20 -0700
+Subject: [PATCH 1/2] plat: imx8mn: implement system_reset2
+
+This allows for the setup of PSCI RESET2 function
+
+Signed-off-by: Michael Scott <[email protected]>
+---
+ plat/imx/imx8m/imx8mn/imx8mn_psci.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/plat/imx/imx8m/imx8mn/imx8mn_psci.c b/plat/imx/imx8m/imx8mn/imx8mn_psci.c
+index b8fc171ef..291b7aabf 100644
+--- a/plat/imx/imx8m/imx8mn/imx8mn_psci.c
++++ b/plat/imx/imx8m/imx8mn/imx8mn_psci.c
+@@ -27,6 +27,7 @@ static const plat_psci_ops_t imx_plat_psci_ops = {
+ 	.pwr_domain_pwr_down_wfi = imx_pwr_domain_pwr_down_wfi,
+ 	.get_sys_suspend_power_state = imx_get_sys_suspend_power_state,
+ 	.system_reset = imx_system_reset,
++	.system_reset2 = imx_system_reset2,
+ 	.system_off = imx_system_off,
+ };
+
+-- 
+2.37.1
+

meta-lmp-bsp/dynamic-layers/freescale-layer/recipes-bsp/imx-atf/imx-atf/0002-plat-imx8mn-SiP-call-for-secondary-boot.patch

@@ -0,0 +1,43 @@
+From 03437de41f4082961eedc97b8fbda0d2be0d403d Mon Sep 17 00:00:00 2001
+From: Michael Scott <[email protected]>
+Date: Mon, 1 Aug 2022 12:16:20 -0700
+Subject: [PATCH 2/2] plat: imx8mn: SiP call for secondary boot
+
+Signed-off-by: Michael Scott <[email protected]>
+---
+ plat/imx/imx8m/gpc_common.c                  | 2 +-
+ plat/imx/imx8m/imx8mn/include/platform_def.h | 2 ++
+ 2 files changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/plat/imx/imx8m/gpc_common.c b/plat/imx/imx8m/gpc_common.c
+index be1a650c8..7c9725610 100644
+--- a/plat/imx/imx8m/gpc_common.c
++++ b/plat/imx/imx8m/gpc_common.c
+@@ -414,7 +414,7 @@ int imx_src_handler(uint32_t smc_fid, u_register_t x1, u_register_t x2,
+ 		SMC_SET_GP(handle, CTX_GPREG_X1, ret1);
+ 		SMC_SET_GP(handle, CTX_GPREG_X2, ret2);
+ 		break;
+-#if defined(PLAT_imx8mp)
++#if defined(PLAT_imx8mp) || defined(PLAT_imx8mn)
+ 	case IMX_SIP_SRC_SET_SECONDARY_BOOT:
+ 		if (x2)
+ 			mmio_setbits_32(IMX_SRC_BASE + SRC_GPR10_OFFSET,
+diff --git a/plat/imx/imx8m/imx8mn/include/platform_def.h b/plat/imx/imx8m/imx8mn/include/platform_def.h
+index e612214b9..8c52640a6 100644
+--- a/plat/imx/imx8m/imx8mn/include/platform_def.h
++++ b/plat/imx/imx8m/imx8mn/include/platform_def.h
+@@ -119,9 +119,11 @@
+ #define SRC_M4RCR			U(0xc)
+ #define SRC_OTG1PHY_SCR			U(0x20)
+ #define SRC_GPR1_OFFSET			U(0x74)
++#define SRC_GPR10_OFFSET		U(0x98)
+
+ #define SRC_SCR_M4_ENABLE_MASK		BIT(3)
+ #define SRC_SCR_M4C_NON_SCLR_RST_MASK  	BIT(0)
++#define SRC_GPR10_PERSIST_SECONDARY_BOOT	BIT(30)
+
+ #define SNVS_LPCR			U(0x38)
+ #define SNVS_LPCR_SRTC_ENV		BIT(0)
+-- 
+2.37.1
+

meta-lmp-bsp/dynamic-layers/freescale-layer/recipes-bsp/imx-atf/imx-atf_%.bbappend

@@ -13,6 +13,8 @@ SRC_URI:append = " \
     file://0001-plat-imx8mp-implement-system_reset2.patch \
     file://0004-plat-imx8mq-SiP-call-for-secondary-boot.patch \
     file://0001-plat-imx8mp-SiP-call-for-secondary-boot.patch \
+    file://0001-plat-imx8mn-implement-system_reset2.patch \
+    file://0002-plat-imx8mn-SiP-call-for-secondary-boot.patch \
 "
 
 SRC_URI:append:toradex = " \

meta-lmp-bsp/dynamic-layers/freescale-layer/recipes-bsp/imx-mkimage/imx-boot/0001-iMX8M-add-SPL-only-build-for-DDR4.patch

@@ -0,0 +1,41 @@
+From 3819f5aef4438431bcf4f7655c6c49105c271aa7 Mon Sep 17 00:00:00 2001
+From: Michael Scott <[email protected]>
+Date: Tue, 2 Aug 2022 18:21:01 -0700
+Subject: [PATCH] iMX8M: add SPL-only build for DDR4
+
+The flash.bin image therefore becomes the SPL image ready to be
+signed.  This change is specific to DDR4 firmware.
+
+Upstream-Status: Inappropriate [lmp specific]
+
+Signed-off-by: Michael Scott <[email protected]>
+---
+ iMX8M/soc.mak | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/iMX8M/soc.mak b/iMX8M/soc.mak
+index 4d48193..2c20376 100644
+--- a/iMX8M/soc.mak
++++ b/iMX8M/soc.mak
+@@ -112,7 +112,7 @@ ddr4_dmem_2d = ddr4_dmem_2d$(DDR_FW_VERSION).bin
+
+ u-boot-spl-ddr4.bin: u-boot-spl.bin $(ddr4_imem_1d) $(ddr4_dmem_1d) $(ddr4_imem_2d) $(ddr4_dmem_2d)
+ 	@objcopy -I binary -O binary --pad-to 0x8000 --gap-fill=0x0 $(ddr4_imem_1d) ddr4_imem_1d_pad.bin
+-	@objcopy -I binary -O binary --pad-to 0x4000 --gap-fill=0x0 $(ddr4_dmem_1d) ddr4_dmem_1d_pad.bin
++	@objcopy -I binary -O binary --pad-to 0x1000 --gap-fill=0x0 $(ddr4_dmem_1d) ddr4_dmem_1d_pad.bin
+ 	@objcopy -I binary -O binary --pad-to 0x8000 --gap-fill=0x0 $(ddr4_imem_2d) ddr4_imem_2d_pad.bin
+ 	@cat ddr4_imem_1d_pad.bin ddr4_dmem_1d_pad.bin > ddr4_1d_fw.bin
+ 	@cat ddr4_imem_2d_pad.bin $(ddr4_dmem_2d) > ddr4_2d_fw.bin
+@@ -250,6 +250,9 @@ flash_evk_spl: $(MKIMG) u-boot-spl-combine u-boot-spl-ddr.bin
+ 	./mkimage_imx8 -version $(VERSION) -loader u-boot-spl-ddr.bin $(SPL_LOAD_ADDR) -out $(OUTIMG)
+ endif
+
++flash_evk_spl_ddr4: $(MKIMG) u-boot-spl-combine u-boot-spl-ddr4.bin
++	./mkimage_imx8 -version $(VERSION) -loader u-boot-spl-ddr4.bin $(SPL_LOAD_ADDR) -out $(OUTIMG)
++
+ flash_evk_no_hdmi: $(MKIMG) u-boot-spl-ddr.bin u-boot.itb
+ 	./mkimage_imx8 -version $(VERSION) -fit -loader u-boot-spl-ddr.bin $(SPL_LOAD_ADDR) -second_loader u-boot.itb 0x40200000 0x60000 -out $(OUTIMG)
+
+-- 
+2.37.1
+

meta-lmp-bsp/dynamic-layers/freescale-layer/recipes-bsp/imx-mkimage/imx-boot_%.bbappend

@@ -10,6 +10,7 @@ SRC_URI:append:mx8m-nxp-bsp = " \
      file://0003-iMX8M-add-support-for-packing-HDMI-fw-in-SPL-only-bo.patch \
      file://0004-iMX8M-also-create-nohdmi-boot-image.patch \
      file://0001-iMX8M-change-DDR-DMEM-padding.patch \
+     file://0001-iMX8M-add-SPL-only-build-for-DDR4.patch \
 "
 
 SRC_URI:append:mx8qm-nxp-bsp = " \
@@ -25,7 +26,7 @@ do_compile[depends] = " \
 
 do_compile:prepend:mx8-nxp-bsp() {
     for target in ${IMXBOOT_TARGETS}; do
-        if [ "${target}" = "flash_evk_spl" ]; then
+        if [ "${target}" = "flash_evk_spl" ] || [ "${target}" = "flash_evk_spl_ddr4" ]; then
             # copy u-boot-spl-nodtb instead of u-boot-spl.bin as we need to have
             # spl and its dtb separate (dt-spl.dtb will contain public hash of
             # used to check the signature of u-boot fit-image)
@@ -41,7 +42,7 @@ do_compile:prepend:mx8-nxp-bsp() {
 
 do_compile:append() {
     for target in ${IMXBOOT_TARGETS}; do
-        if [ "${target}" = "flash_evk_spl" ]; then
+        if [ "${target}" = "flash_evk_spl" ] || [ "${target}" = "flash_evk_spl_ddr4" ]; then
             if [ -e "${BOOT_STAGING}/flash.bin-nohdmi" ]; then
                 cp ${BOOT_STAGING}/flash.bin-nohdmi ${S}/${BOOT_CONFIG_MACHINE}-${target}-nohdmi
             fi
@@ -51,7 +52,7 @@ do_compile:append() {
 
 do_install:append() {
     for target in ${IMXBOOT_TARGETS}; do
-        if [ "${target}" = "flash_evk_spl" ]; then
+        if [ "${target}" = "flash_evk_spl" ] || [ "${target}" = "flash_evk_spl_ddr4" ]; then
             if [ -e "${S}/${BOOT_CONFIG_MACHINE}-${target}-nohdmi" ]; then
                 install -m 0644 ${S}/${BOOT_CONFIG_MACHINE}-${target}-nohdmi ${D}/boot/
             fi
@@ -61,7 +62,7 @@ do_install:append() {
 
 do_deploy:append() {
     for target in ${IMXBOOT_TARGETS}; do
-        if [ "${target}" = "flash_evk_spl" ]; then
+        if [ "${target}" = "flash_evk_spl" ] || [ "${target}" = "flash_evk_spl_ddr4" ]; then
             # Also create imx-boot link with the machine name
             if [ ! -e "${DEPLOYDIR}/${BOOT_NAME}-${MACHINE}" ]; then
                 ln -sf ${BOOT_CONFIG_MACHINE}-${target} ${DEPLOYDIR}/${BOOT_NAME}-${MACHINE}

meta-lmp-bsp/recipes-bsp/u-boot/u-boot-base-scr/imx8mn-ddr4-evk/boot.cmd

@@ -0,0 +1,3 @@
+fatload mmc ${emmc_dev}:1 ${loadaddr} /uEnv.txt
+env import -t ${loadaddr} ${filesize}
+run bootcmd

meta-lmp-bsp/recipes-bsp/u-boot/u-boot-base-scr/imx8mn-ddr4-evk/uEnv.txt.in

@@ -0,0 +1,7 @@
+devnum=2
+devtype=mmc
+bootcmd_args=setenv bootargs console=tty1 console=${console} root=/dev/mmcblk2p2 rootfstype=ext4 rootwait rw
+bootcmd_dtb=fatload ${devtype} ${devnum}:1 ${fdt_addr} ${fdt_file}
+bootcmd_load_k=fatload ${devtype} ${devnum}:1 ${loadaddr} ${image}
+bootcmd_run=booti ${loadaddr} - ${fdt_addr}
+bootcmd=run bootcmd_args; run bootcmd_dtb; run bootcmd_load_k; run bootcmd_run

meta-lmp-bsp/recipes-bsp/u-boot/u-boot-fio-mfgtool/imx8mn-ddr4-evk/lmp.cfg

@@ -0,0 +1,114 @@
+CONFIG_SPL_DM=y
+CONFIG_SPL_FIT=y
+# CONFIG_SPL_FIT_SIGNATURE is not set
+# CONFIG_SPL_FIT_SIGNATURE_STRICT is not set
+# CONFIG_SPL_MD5_SUPPORT is not set
+# CONFIG_SPL_SHA1_SUPPORT is not set
+CONFIG_SPL_LOAD_FIT=y
+# CONFIG_SPL_FIT_IMAGE_TINY is not set
+# CONFIG_SPL_BOOTROM_SUPPORT is not set
+CONFIG_SPL_OF_CONTROL=y
+CONFIG_SPL_CRYPTO_SUPPORT=y
+CONFIG_SPL_HASH_SUPPORT=y
+CONFIG_SPL_SHA256_SUPPORT=y
+CONFIG_SPL_USB_HOST_SUPPORT=y
+CONFIG_SPL_USB_GADGET=y
+CONFIG_SPL_USB_SDP_SUPPORT=y
+CONFIG_SPL_RSA=y
+CONFIG_RSA=y
+CONFIG_HASH=y
+CONFIG_SPL_ATF=y
+CONFIG_SDP_LOADADDR=0x40400000
+CONFIG_SPL_SYS_MALLOC_F_LEN=0x12000
+# CONFIG_SPL_LEGACY_IMAGE_SUPPORT is not set
+# CONFIG_SPL_EFI_PARTITION is not set
+# CONFIG_SPL_DM_USB is not set
+# CONFIG_SPL_PARTITION_UUIDS is not set
+# CONFIG_SPL_DOS_PARTITION is not set
+# CONFIG_SPL_MXC_OCOTP is not set
+# CONFIG_SPL_DM_MMC is not set
+# CONFIG_SPL_MMC_SUPPORT is not set
+# CONFIG_SPL_BLK is not set
+CONFIG_OF_LIBFDT_OVERLAY=y
+CONFIG_FIT=y
+CONFIG_FIT_SIGNATURE=y
+CONFIG_FIT_SIGNATURE_STRICT=y
+CONFIG_FIT_VERBOSE=y
+# CONFIG_LEGACY_IMAGE_FORMAT is not set
+CONFIG_IMX_HAB=y
+# CONFIG_SPL_IMX_HAB is not set
+CONFIG_PARTITION_UUIDS=y
+CONFIG_TEE=y
+CONFIG_OPTEE=y
+CONFIG_FIOVB=y
+CONFIG_CMD_FIOVB=y
+CONFIG_CMD_XIMG=y
+CONFIG_CMD_SECONDARY_BOOT=y
+CONFIG_SUPPORT_EMMC_RPMB=y
+CONFIG_USB=y
+CONFIG_DM_USB=y
+CONFIG_USB_FUNCTION_FASTBOOT=y
+CONFIG_USB_GADGET_MASS_STORAGE=y
+CONFIG_USB_GADGET_MANUFACTURER="FSL"
+CONFIG_USB_GADGET_VENDOR_NUM=0x0525
+CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
+CONFIG_FASTBOOT_FLASH=y
+CONFIG_FASTBOOT_UUU_SUPPORT=y
+CONFIG_FASTBOOT_BUF_ADDR=0x42800000
+CONFIG_FASTBOOT_BUF_SIZE=0x40000000
+CONFIG_FSL_FASTBOOT_BOOTLOADER2=y
+CONFIG_FSL_FASTBOOT_BOOTLOADER2_OFFSET=0x300
+CONFIG_SECONDARY_BOOT_SECTOR_OFFSET=0x1000
+CONFIG_FSL_FASTBOOT_BOOTLOADER_SECONDARY=y
+CONFIG_BOOTDELAY=-2
+CONFIG_USE_BOOTCOMMAND=y
+CONFIG_BOOTCOMMAND="reset"
+CONFIG_ENV_IS_NOWHERE=y
+CONFIG_IMX_WATCHDOG=y
+CONFIG_SPL_HW_WATCHDOG=y
+# CONFIG_ENV_IS_IN_MMC is not set
+# CONFIG_ENV_IS_IN_SPI_FLASH is not set
+# CONFIG_ANDROID_BOOT_IMAGE is not set
+# CONFIG_CMD_DEKBLOB is not set
+# CONFIG_NET is not set
+# CONFIG_CMD_NET is not set
+# CONFIG_CMD_DHCP is not set
+# CONFIG_CMD_BOOTP is not set
+# CONFIG_CMD_TFTPBOOT is not set
+# CONFIG_CMD_NFS is not set
+# CONFIG_CMD_SYSBOOT is not set
+# CONFIG_CMD_BDI is not set
+# CONFIG_CMD_BMODE is not set
+# CONFIG_CMD_PXE is not set
+# CONFIG_CMD_SATA is not set
+# CONFIG_CMD_USB_MASS_STORAGE is not set
+# CONFIG_CMD_BOOTD is not set
+# CONFIG_CMD_BOOTZ is not set
+# CONFIG_CMD_SAVEENV is not set
+# CONFIG_CMD_EXPORTENV is not set
+# CONFIG_CMD_IMPORTENV is not set
+# CONFIG_CMD_EDITENV is not set
+# CONFIG_EFI_LOADER is not set
+# CONFIG_SATA is not set
+# CONFIG_DWC_AHSATA is not set
+# CONFIG_DM_SCSI is not set
+# CONFIG_USB_STORAGE is not set
+# CONFIG_USB_KEYBOARD is not set
+# CONFIG_USB_HOST_ETHER is not set
+# CONFIG_BOOTM_NETBSD is not set
+# CONFIG_BOOTM_PLAN9 is not set
+# CONFIG_BOOTM_RTEMS is not set
+# CONFIG_BOOTM_VXWORKS is not set
+# CONFIG_DISTRO_DEFAULTS is not set
+# CONFIG_CMD_ELF is not set
+# CONFIG_CMD_IMI is not set
+# CONFIG_CMD_LOADB is not set
+# CONFIG_CMD_LOADS is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_DM_VIDEO is not set
+# CONFIG_VIDEO_BRIDGE is not set
+# CONFIG_VIDEO_SEC_MIPI_DSI is not set
+# CONFIG_VIDEO_IMX_SEC_DSI is not set
+# CONFIG_VIDEO_LINK is not set
+# CONFIG_SHA_HW_ACCEL is not set
+# CONFIG_CMD_DFU is not set

meta-lmp-bsp/recipes-bsp/u-boot/u-boot-fio/imx8mn-ddr4-evk/fw_env.config

@@ -0,0 +1 @@
+/mnt/boot/uboot.env     0x0000          0x4000

meta-lmp-bsp/recipes-bsp/u-boot/u-boot-fio/imx8mn-ddr4-evk/lmp-base.cfg

@@ -0,0 +1,28 @@
+CONFIG_SPL_OF_CONTROL=y
+CONFIG_SPL_FIT=y
+CONFIG_SPL_LOAD_FIT=y
+# CONFIG_SPL_FIT_IMAGE_TINY is not set
+# CONFIG_CMD_DEKBLOB is not set
+# CONFIG_SPL_DM_USB is not set
+CONFIG_OF_LIBFDT_OVERLAY=y
+CONFIG_FIT=y
+CONFIG_FIT_SIGNATURE=y
+CONFIG_FIT_VERBOSE=y
+CONFIG_LEGACY_IMAGE_FORMAT=y
+CONFIG_PARTITION_UUIDS=y
+CONFIG_CMD_XIMG=y
+CONFIG_SUPPORT_EMMC_RPMB=y
+CONFIG_SUPPORT_EMMC_BOOT=y
+# CONFIG_ENV_IS_IN_MMC is not set
+CONFIG_ENV_IS_IN_FAT=y
+CONFIG_ENV_FAT_INTERFACE="mmc"
+CONFIG_ENV_FAT_DEVICE_AND_PART="2:1"
+CONFIG_ENV_SIZE=0x4000
+CONFIG_CMD_IMPORTENV=y
+CONFIG_CMD_EDITENV=y
+CONFIG_CMD_SAVEENV=y
+CONFIG_USE_BOOTCOMMAND=y
+CONFIG_BOOTCOMMAND="fatload mmc ${emmc_dev}:1 ${loadaddr} /boot.scr; source ${loadaddr}; reset"
+CONFIG_SPL_WATCHDOG_SUPPORT=y
+CONFIG_SPL_HW_WATCHDOG=y
+CONFIG_IMX_WATCHDOG=y