[Buildroot] Custom DTS declaration

Christopher Hunt huntchr at gmail.com
Sun Apr 14 07:40:14 UTC 2024


Hi there,

I’m somewhat confused about the device-tree that I can view from the Linux CLI vs what I’m supplying to buildroot.

If I look at /proc/device-tree/model then I see "Microchip SAMA5D27 WLSOM1 EK”. However, my board/cuprous/gw/linux/dts/at91-sama5d27_wlsom1_cuprous_gw.dts declares, "Microchip SAMA5D27 WLSOM1 Cuprous Gateway”. I’m declaring the use of that DTS via configs/microchip_sama5d27_wlsom1_cuprous_gw_defconfig with:

	BR2_LINUX_KERNEL_INTREE_DTS_NAME="at91-sama5d27_wlsom1_cuprous_gw”
	BR2_LINUX_KERNEL_CUSTOM_DTS_PATH="board/cuprous/gw/linux/dts/at91-sama5d27_wlsom1_cuprous_gw.dts"

Uboot is configured to use its own DTS with the name of "Microchip SAMA5D27 WLSOM1 EK”, so it could be that, or it could just be that I’ve not declared my custom Linux DTS correctly.

Anything obvious?

Full repo here: https://github.com/cuprous-au/buildroot/tree/2022.05.x

Thanks for any help.

Cheers,
-C
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