Device Tree for i.MX8M Plus LPDDR4 EVK

[Jimmychea]

For the i.MX8M Plus LPDDR4 EVK will only using imx8mp-evk.dts ONLY or imx8mp-evk.dts + below .dts files ?

imx8mp-lpddr4-evk.conf

KERNEL_DEVICETREE:append:use-nxp-bsp = " \
freescale/imx8mp-ab2.dtb \
freescale/imx8mp-evk-basler.dtb \
freescale/imx8mp-evk-basler-ov2775.dtb \
freescale/imx8mp-evk-basler-ov5640.dtb \
freescale/imx8mp-evk-dual-basler.dtb \
freescale/imx8mp-evk-dual-ov2775.dtb \
freescale/imx8mp-evk-ecspi-slave.dtb \
freescale/imx8mp-evk-flexcan2.dtb \
freescale/imx8mp-evk-hifiberry-dacplus.dtb \
freescale/imx8mp-evk-inmate.dtb \
freescale/imx8mp-evk-iqaudio-dacplus.dtb \
freescale/imx8mp-evk-iqaudio-dacpro.dtb \
freescale/imx8mp-evk-it6263-lvds-dual-channel.dtb \
freescale/imx8mp-evk-jdi-wuxga-lvds-panel.dtb \
freescale/imx8mp-evk-ndm.dtb \
freescale/imx8mp-evk-ov2775.dtb \
freescale/imx8mp-evk-ov2775-ov5640.dtb \
freescale/imx8mp-evk-pcie-ep.dtb \
freescale/imx8mp-evk-rm67191.dtb \
freescale/imx8mp-evk-rm67199.dtb \
freescale/imx8mp-evk-root.dtb \
freescale/imx8mp-evk-rpmsg.dtb \
freescale/imx8mp-evk-sof-wm8960.dtb \
freescale/imx8mp-evk-spdif-lb.dtb \
freescale/imx8mp-evk-usdhc1-m2.dtb \
"

[Dhruvit · Accepted solution]

Hi @Jimmychea,

I hope you are doing well.

The device tree file can be determined by a u-boot environment variable fdtfile.
imx8mp-evk.dts is the base device tree file for i.MX8MP EVK,

For Example:

setenv fdtfile "imx8mp-evk.dtb"

Other device tree files are used for specific use cases and they use imx8mp-evk.dts as a base.

For example, imx8mp-evk-basler-ov5640.dtb can be set as fdtfile in u-boot cmd if the basler camera is used
imx8mp-evk-basler-ov5640.dts contains #include "imx8mp-evk.dts".

The same goes for other device tree files.

Thanks & Regards,

Dhruvit Vasavada