i.MX ProcessorsのトピックRe: IMX8M | modify Yocto device tree

IMX8M | modify Yocto device tree

shai_b — Thu, 19 May 2022 15:29:28 GMT

Dear team,

My customer would like to find the location of the imx8m device tree source (DTS) in order to modify a few parameters.

1. Could you please advise where the source code of these files are located?

2. What is the best way to compile only the device tree and add the complied file (DTB) into u-boot?

Wating for your kind feedback, many thanks.

KR,

Shai

Re: IMX8M | modify Yocto device tree

Zhiming_Liu — Mon, 23 May 2022 02:40:03 GMT

Please use devtool in yocto to modify source code.

https://wiki.koansoftware.com/index.php/Using_devtool_to_modify_recipes_in_Yocto

Re: IMX8M | modify Yocto device tree

karl1688 — Wed, 13 Jul 2022 04:41:05 GMT

Use "bitbake linux-imx -c devshell" open a new terminal, the path for example

<local build folder>/tmp/work-shared/imx8mp-lpddr4-evk/kernel-source

Change dts file in <local build folder>/tmp/work/imx8mp_lpddr4_evk-poky-linux/linux-imx/5.15.32+gitAUTOINC+fa6c316859-r0/git/arch/arm64/boot/dts/freescale/

Then do "make dtbs" in new terminal, the new dtb general in <local build folder>/tmp/work/imx8mp_lpddr4_evk-poky-linux/linux-imx/5.15.32+gitAUTOINC+fa6c316859-r0/build/arch/arm64/boot/dts/freescale/