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SPI on rock s0


grixm

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Hi guys, I got a SPIdev overlay to work on the rock S0, figured I'd just share it here for the record, since I could have used this info myself (I spent days trying to figure it out since I had no experience with device trees or whatnot).

 

Basically, download the attached .dts file, then run

sudo armbian-add-overlay rk3308-spi2-spidev.dts

I also edited /boot/armbianEnv.txt and added this line, but I'm unsure if that's actually necessary?

param_spidev_spi_bus=2

 

This worked on Armbian 24.5.1 Noble, creating /dev/spidev2.0. You can verify that it works using this tool: https://github.com/rm-hull/spidev-test

The dts file is based on this one from radxa, however changed to "fragment@" syntax like other armbian overlays: https://github.com/radxa-pkg/radxa-overlays/blob/main/arch/arm64/boot/dts/rockchip/overlays/rk3308-spi2-spidev.dts

Maybe this will also work on Rock Pi S, but haven't tested.

 

 

rk3308-spi2-spidev.dts

Edited by grixm
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