imx8mp-olimex.dts: Olimex iMX8MP-SOM-EVB-IND

[leon-anavi]

Add device tree for Olimex i.MX8MP SoM iMX8MP-SOM-4GB-IND and the evaluation board iMX8MP-SOM-EVB-IND.

Based on imx8mp-evk.dts with similar changes on top of it as for kernel lf-5.10.y-1.0.0 provided by Olimex in their buildroot repository:
OLIMEX/buildroot-imx@fcf7064

This patch is based on commit 6cdcd71 from branch 6.6-1.0.x-imx. I have performed very basic testing with core-image-base (with Yocto/OE release Scarthgap) on Olimex i.MX8MP SoM iMX8MP-SOM-4GB-IND and the evaluation board iMX8MP-SOM-EVB-IND.

[otavio]

I believe that you forgot to add that to the makefile.

[leon-anavi]

I believe that you forgot to add that to the makefile.

@otavio, yes, you are right. I modified the Makefile and force pushed the patch.

In general I built the kernel and dtb without issues as part of my Yocto/OE environment with this patch and I have the dtb listed in KERNEL_DEVICETREE:append:use-nxp-bsp. Because of this I forgot to initially modify the Makefile. After adding it, here are the steps that I used to test the Makefile and the dtb:

• Install toolchain:

cd ~
wget -O arm-gnu-toolchain-12.3.rel1-x86_64-aarch64-none-linux-gnu.tar.xz "https://developer.arm.com/-/media/Files/downloads/gnu/12.3.rel1/binrel/arm-gnu-toolchain-12.3.rel1-x86_64-aarch64-none-linux-gnu.tar.xz?rev=cf8baa0ef2e54e9286f0409cdda4f66c&hash=4E1BA6BFC2C09EA04DBD36C393C9DD3A"
tar xvf arm-gnu-toolchain-12.3.rel1-x86_64-aarch64-none-linux-gnu.tar.xz
ln -s arm-gnu-toolchain-12.3.rel1-x86_64-aarch64-none-linux-gnu gcc-linaro

• Export environment variables:

export ARCH=arm64
export DTC_FLAGS="-@"
export PATH=~/gcc-linaro/bin/:$PATH
export CROSS_COMPILE=aarch64-none-linux-gnu-

• Download the source and build the device tree:

git clone -b 6.6-2.1.x-imx-imx8mp-olimex [email protected]:leon-anavi/linux-fslc.git
cd linux-fslc
make imx_v8_defconfig
make dtbs

As a result imx8mp-olimex.dtb is generated along with the rest of the device trees:

$ ls -l arch/arm64/boot/dts/freescale/imx8mp-olimex.dtb
-rw-r--r-- 1 leon leon 75987 Nov  6 16:40 arch/arm64/boot/dts/freescale/imx8mp-olimex.dtb

Best regards, Leon

[otavio]

Please now prepare the pull request to prompt the revision in the repository.

[leon-anavi]

Please now prepare the pull request to prompt the revision in the repository.

OK, thank you! I opened the pull request for branch Scarthgap in meta-freescale: Freescale/meta-freescale#2022