Path to custom CubeMX DTS files ignored when building kernel/u-boot/tf-a

[AMurr.2282]

I am getting the following error when trying to build tf-a, u-boot, or the linux kernel (the following is when trying to bitbake tf-a-stm32mp):

make: *** No rule to make target 'fdts/stm32mp153a-raichu-cubemx-mx.dts', needed by 'build-openstlinuxtkrt-stm32mp1-raichu-cubemx/tmp-glibc/work/stm32mp1_raichu_cubemx-ostl-linux-gnueabi/tf-a-stm32mp/2.2.r1-r0/build/trusted/fdts/stm32mp153a-raichu-cubemx-mx.dtb'. Stop.

It seems that the variable CUBEMX_PROJECT is being ignored in my machine conf file, because it is searching in the tf-a source folder for my DTS files. How do I tell yocto to use the DTS files in my layer's "mx" folder?

Here's the directory listing of my layer:

meta-raichu
├── conf
│   ├── layer.conf
│   └── machine
│       └── stm32mp1-raichu-cubemx.conf
├── mx
│   └── raichu-cubemx
│       ├── CA7
│       │   └── DeviceTree
│       │       └── raichu-cubemx
│       │           ├── kernel
│       │           │   └── stm32mp153a-raichu-cubemx-mx.dts
│       │           ├── tf-a
│       │           │   ├── stm32mp153a-raichu-cubemx-mx.dts
│       │           │   └── stm32mp15-mx.dtsi
│       │           └── u-boot
│       │               ├── stm32mp153a-raichu-cubemx-mx.dts
│       │               ├── stm32mp153a-raichu-cubemx-mx-u-boot.dtsi
│       │               ├── stm32mp15-mx.dtsi
│       │               └── stm32mp15-mx.h
└── recipes-tkrt
    └── images
        └── tkrt-image-raichu.bb

Here is my conf/layer.conf file:

# 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-raichu"
BBFILE_PATTERN_meta-raichu = "^${LAYERDIR}/"
BBFILE_PRIORITY_meta-raichu = "7"
 
LAYERDEPENDS_meta-raichu = "core"
LAYERSERIES_COMPAT_meta-raichu = "dunfell"

And here is my conf/machine/stm32mp1-raichu-cubemx.conf file:

#@TYPE: Machine
#@NAME: stm32mp1-mx
#@DESCRIPTION: Configuration for STM32CubeMX generated project
#@NEEDED_BSPLAYERS: layers/meta-openembedded/meta-oe layers/meta-openembedded/meta-python
 
###########################################################################
#
# Default machine configuration sections
#
###########################################################################
 
require conf/machine/include/st-machine-common-stm32mp.inc
require conf/machine/include/st-machine-providers-stm32mp.inc
 
# Define specific common machine name
MACHINEOVERRIDES .= ":stm32mpcommonmx"
 
# =========================================================================
# Chip architecture
# =========================================================================
DEFAULTTUNE = "cortexa7thf-neon-vfpv4"
include conf/machine/include/tune-cortexa7.inc
 
# =========================================================================
# 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
# =========================================================================
# Set specific subdir path by components for each device tree file location
# within CUBEMX_PROJECT project folder
CUBEMX_DTB_PATH_TFA     = "tf-a"
CUBEMX_DTB_PATH_TFA_SB  = "tf-a"
CUBEMX_DTB_PATH_UBOOT   = "u-boot"
CUBEMX_DTB_PATH_LINUX   = "kernel"
CUBEMX_DTB_PATH_OPTEEOS = "optee-os"
 
###########################################################################
#
# User machine customization sections
#
###########################################################################
 
# Boot Scheme
# =========================================================================
BOOTSCHEME_LABELS += "trusted"
#BOOTSCHEME_LABELS += "optee"
# WORKAROUND to generate U-BOOT SPL for DDR Tuning tools usage
UBOOT_CONFIG += "basic"
 
 
# 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 = "stm32mp157c-my-demo"
#CUBEMX_PROJECT = "mx/STM32MP157C-EV1/my-demo/DeviceTree/my-demo"
CUBEMX_DTB = "stm32mp153a-raichu-cubemx-mx"
CUBEMX_PROJECT = "mx/raichu-cubemx/CA7/DeviceTree/raichu-cubemx/"
 

[Olivier GALLIEN]

Hi @AMurr.2282​ 

As a first verification/hint, did you follow recommendation on page https://wiki.st.com/stm32mpu/wiki/How_to_compile_the_device_tree_with_the_Distribution_Package

Else can you cross check ?

Thanks

Olivier

[AMurr.2282 · Accepted solution]

It was a silly mistake. The class wasn't being included because meta-st-stm32mp-addons layer wasn't included in my BBLAYERS variable.