On 8/14/25 5:23 PM, Patrice CHOTARD wrote:


On 8/14/25 15:37, Marek Vasut wrote:
On 8/14/25 2:09 PM, Patrice Chotard wrote:
Initially, only one STM32MP25 based board was available, the
stm32mp257f-ev1 board which was set by default in stm32mp25_defconfig.

Since commit 79f3e77133bd ("Subtree merge tag 'v6.16-dts' of dts repo [1] into 
dts/upstream")
we inherited of a second MP25 based board which is the stm32mp257f-dk board.

Enable OF_UPSTREAM_BUILD_VENDOR and set OF_UPSTREAM_VENDOR to allow all
STMicroelectronics DT compilation.
If I build stm32mp25_defconfig , I can run the result on both EV1 and DK now ?


With this patch yes

It seems only the EV1 DT is built into the binary, so why compile all DTs ?

By default yes, only EV1 DT is built. that's why OF_UPSTREAM_BUILD_VENDOR is 
needed to
allow all other st/*.dtb to be built.


$ grep TREE configs/stm32mp25_defconfig
CONFIG_DEFAULT_DEVICE_TREE="st/stm32mp257f-ev1"


Currently if you try to build U-Boot for stm32mp257f-dk board using the 
following commands:

make stm32mp25_defconfig
make DEVICE_TREE=st/stm32mp257f-dk

Please introduce defconfig for each board instead of this hackage .

Look at this example on how to use #include in defconfig files, it even supports multiple levels of config structure for deduplication purposes:

$  git grep include configs/imx*dh*
configs/imx6_dhcom_drc02_defconfig:#include <configs/dh_imx6.config>
configs/imx6_dhcom_pdk2_defconfig:#include <configs/dh_imx6.config>
configs/imx6_dhcom_picoitx_defconfig:#include <configs/dh_imx6.config>
configs/imx8mp_dhcom_drc02_defconfig:#include <configs/imx8mp_dhsom.config>
configs/imx8mp_dhcom_pdk2_defconfig:#include <configs/imx8mp_dhsom.config>
configs/imx8mp_dhcom_pdk3_defconfig:#include <configs/imx8mp_dhsom.config>
configs/imx8mp_dhcom_picoitx_defconfig:#include <configs/imx8mp_dhsom.config>
configs/imx8mp_dhsom.config:#include <configs/imx_dhsom.config>
configs/imx_dhsom.config:#include <configs/dhsom.config>

--
Best regards,
Marek Vasut

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