How to Create u-boot-spl.stm32 by OpenSTLinux4.1 Distribution Package

[jasonj2]

HI,

I am working on a custom STM32MP151AAC3 board, and working on OpenSTLinux 4.10 distribution package.

Now I can connect to the board through UART4(PB2 and PG11) by STM32CubeProgrammer, and I want to tune the DDR3 to verify the design. I need the u-boot-spl.stm32 binary file.

Firstly, I create a custom layers for the custom board following the instruction from https://wiki.stmicroelectronics.cn/stm32mpu-ecosystem-v4/wiki/How_to_compile_the_device_tree_with_the_Distribution_Package , and I can built the system image successfully. But I cannot find u-boot-spl.stm32 or u-boot.stm32 in the **/deploy/images/customboard/u-boot directory.

Then I find a wiki page said that “The ouput file u-boot.stm32' is only generated for stm32mp15_trusted_defconfig with CONFIG_STM32MP15x_STM32IMAGE; it is not more used for ecosystem release ≥ v4.0.0”. So, I adjust the machine.conf and append "UBOOT_CONFIG[trusted] = "stm32mp15_trusted_defconfig,,u-boot.dtb", still cannot get the u-boot stm32image.

I have attached the custom layer conf files. It would be very helpful if someone can give me some advice. Thanks in advance.

Regards.

layer.conf

# We have a conf and classes directory, add to BBPATH
BBPATH .= ":${LAYERDIR}"

# We have recipes-* directories, add to BBFILES
BBFILES += "${LAYERDIR}/recipes-*/*/*.bb \
            ${LAYERDIR}/recipes-*/*/*.bbappend"

BBFILE_COLLECTIONS += "meta-customboard-layer"
BBFILE_PATTERN_meta-customboard-layer = "^${LAYERDIR}/"
BBFILE_PRIORITY_meta-customboard-layer = "7"

LAYERDEPENDS_meta-customboard-layer = "core"
#LAYERSERIES_COMPAT_meta-customboard-layer = "kirkstone"



EULA_FILE_ST:stm32mp1customboard = "${LAYERDIR}/conf/eula/${MACHINE}"
EULA_FILE_ST_MD5SUM:stm32mp1customboard = "8b505090fb679839cefbcc784afe8ce9"

#Inform bitbake for adding another location to search for licenses
LICENSE_PATH += "${LAYERDIR}/files/licenses"

# Set a variable to get the STM32MP MX BSP location
STM32MP_customboard_BASE = "${LAYERDIR}"

# This should only be incremented on significant changes that may
# cause compatibility issues with other layers
LAYERVERSION_meta-customboard-layer = "1"

LAYERDEPENDS_meta-customboard-layer = "stm-st-stm32mp-mx"

# OpenEmbedded compatibility information
# This should only be incremented on significant changes that will
# cause compatibility issues with other layers
LAYERVERSION_meta-customboard-layer = "1"
LAYERSERIES_COMPAT_meta-customboard-layer = "kirkstone"

stm32mp1-customboard.conf

#@TYPE: Machine
#@NAME: stm32mp1-customboard
#@DESCRIPTION: Configuration for STM32CubeMX generated project
#@NEEDED_BSPLAYERS: layers/meta-openembedded/meta-oe layers/meta-openembedded/meta-python layers/meta-st/meta-st-stm32mp-addons

###########################################################################
#
# Default machine configuration sections
#
###########################################################################

include conf/machine/include/st-machine-common-stm32mp.inc
include conf/machine/include/st-machine-providers-stm32mp.inc

# Define specific common machine name
MACHINEOVERRIDES .= ":stm32mpcommonmx:stm32mp15commonmx"
MACHINEOVERRIDES .= ":stm32mp1common:stm32mp15common"
MACHINEOVERRIDES .= ":stm32mp1customboard"

# =========================================================================
# Chip architecture
# =========================================================================
DEFAULTTUNE = "cortexa7thf-neon-vfpv4"
include conf/machine/include/arm/armv7a/tune-cortexa7.inc

# =========================================================================
# boot scheme
# =========================================================================
# BOOTSCHEME_LABELS ?=

# =========================================================================
# boot device
# =========================================================================
BOOTDEVICE_LABELS ?= "emmc"

# =========================================================================
# Machine settings
# =========================================================================
STM32MP_DEVICETREE = "${CUBEMX_DTB}"

# =========================================================================
# Machine features (default for stm32mp1 like)
# =========================================================================
MACHINE_FEATURES += "splashscreen"
MACHINE_FEATURES += "watchdog"
MACHINE_FEATURES += "${@'gpu' if d.getVar('ACCEPT_EULA_'+d.getVar('MACHINE')) == '1' else ''}"
MACHINE_FEATURES += "m4copro"

# =========================================================================
# Device Storage
# =========================================================================
# Enable the board device storage support with CUBEMX_DTB according to BOOTDEVICE_LABELS
DEVICE_BOARD_ENABLE:NAND    += "${@bb.utils.contains('BOOTDEVICE_LABELS', 'nand-4-256', '${CUBEMX_DTB}', '', d)}"
DEVICE_BOARD_ENABLE:NOR     += "${@bb.utils.contains('BOOTDEVICE_LABELS', 'nor-sdcard' , '${CUBEMX_DTB}', '', d)}"
DEVICE_BOARD_ENABLE:EMMC    += "${@bb.utils.contains('BOOTDEVICE_LABELS', 'emmc', '${CUBEMX_DTB}', '', d)}"
DEVICE_BOARD_ENABLE:SDCARD  += "${@bb.utils.contains('BOOTDEVICE_LABELS', 'sdcard', '${CUBEMX_DTB}', '', d)}"

# =========================================================================
# Flashlayout
# =========================================================================
# Set the FLASHLAYOUT_TYPE_LABELS to CUBEMX_DTB according to BOOTDEVICE_LABELS
FLASHLAYOUT_TYPE_LABELS:emmc        = "${@bb.utils.contains('BOOTDEVICE_LABELS', 'emmc', '${CUBEMX_DTB}', '', d)}"
FLASHLAYOUT_TYPE_LABELS:nand-4-256  = "${@bb.utils.contains('BOOTDEVICE_LABELS', 'nand-4-256', '${CUBEMX_DTB}', '', d)}"
FLASHLAYOUT_TYPE_LABELS:nor-sdcard  = "${@bb.utils.contains('BOOTDEVICE_LABELS', 'nor-sdcard' , '${CUBEMX_DTB}', '', d)}"
FLASHLAYOUT_TYPE_LABELS:sdcard      = "${@bb.utils.contains('BOOTDEVICE_LABELS', 'sdcard', '${CUBEMX_DTB}', '', d)}"

# Specific settings for 'extensible' and 'deleteall' configurations
FLASHLAYOUT_CONFIG_LABELS:deleteall = "cubemx"
FLASHLAYOUT_TYPE_LABELS:deleteall:cubemx = "${CUBEMX_DTB}"
FLASHLAYOUT_TYPE_LABELS:extensible = "${CUBEMX_DTB}"

# =========================================================================
# CubeMX extra config
# =========================================================================
ENABLE_CUBEMX_DTB ?= "1"

###########################################################################
#
# User machine customization sections
#
###########################################################################

# Boot Scheme
# =========================================================================
# BOOTSCHEME_LABELS += "basic"
BOOTSCHEME_LABELS += "trusted"
#BOOTSCHEME_LABELS += "optee"
#
UBOOT_CONFIG += "trusted"
# UBOOT_CONFIG[basic]   = "stm32mp15_basic_defconfig,,u-boot.dtb"
UBOOT_CONFIG[trusted] = "stm32mp15_trusted_defconfig,,u-boot.dtb"
# UBOOT_CONFIG[optee]   = "stm32mp15_trusted_defconfig,,u-boot.dtb"

# Boot Device Choice
# =========================================================================
# Define the boot device supported
#BOOTDEVICE_LABELS += "sdcard"
BOOTDEVICE_LABELS += "emmc"
#BOOTDEVICE_LABELS += "nand-4-256"
#BOOTDEVICE_LABELS += "nor-sdcard"

# Support Feature Choice
# =========================================================================
# Define the features to enable on board
#MACHINE_FEATURES += "bluetooth"
#MACHINE_FEATURES += "wifi"

# Specific firmwares and kernel modules configuration
# =========================================================================
# Set the list of kernel module to be auto-loaded during boot
#KERNEL_MODULE_AUTOLOAD += ""

# Set Bluetooth related package list needed when 'bluetooth' feature is enabled
#BLUETOOTH_LIST += ""

# Set Wifi related package list needed when 'wifi' feature is enabled
#WIFI_LIST += ""

# CubeMX Project Config
# =========================================================================
# Assign CubeMX Board devicetree and project path name
CUBEMX_DTB = "stm32mp151a-customboard-mx"
CUBEMX_PROJECT = "mx/customboard"

# Indicate which STM32MP package are used: 'A', 'C', 'D' or 'F'
CUBEMX_SOC_PACKAGE = "A"

# Indicate the size of DDR available on BOARD: 512 or 1024 (size in MB unit)
CUBEMX_BOARD_DDR_SIZE = "512"

# Indicate if you like to disable the DVFS which are activated by default
#CUBEMX_SOC_DVFS_OFF = "0"

[PatrickF · Accepted solution]

Hi @jasonj2 ,

uBoot is now embedded inside a fip.bin package (https://wiki.st.com/stm32mpu/wiki/STM32MP15_U-Boot#U-Boot_integration_in_FIP).

As there is no more support of uBoot SPL, for DDR tests, you should now use https://wiki.st.com/stm32mpu/wiki/STM32DDRFW-UTIL

Regards

[jasonj2]

The STM32DDRFW-UTIL is what I need.

Thank you very much!

Regards.