Android on CM5/ CM5 IO Board with Raspberry Touchdisplay 2

ChrisKChrisK
edited January 17 in Supported devices

Hello Together,

I've CM5 with the CM5 IO board and a Raspberry Touchdisplay 2. So HW is up and running under Raspberry PI OS booting from the eMMC.

I know it is not officially supported on the CM5, but I tried the emteria Android OS Image for Raspi 5. I was able to flash the is with the Raspberry Pi5 Imager.

However it is not booting. Or at least it shows a black screen after showing the uboot boot screen on HDMI0 and always a black screen on the touch display

I guess I need a different device tree file and need to add dtoverlay=vc4-kms-dsi-ili9881-7inch to the config.txt config-overrides.txt.

Has anyone successfully booted android on the cm5 with the cm5 IO board and can point me into the right direction?

Any help is highly appreciated. Thanks

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Comments

  • smiescheksmieschek

    Hi @ChrisK

    Everything sounds about right. Have you tried to exchange the dt-blob.bin on the boot partition with the cm5io one?

    The cm5io is definitely something we would like to support, but didn't have any requests for it, so it's not the highest priority. If you have an interesting use case feel free to reach out to sales@emteria.com

  • ChrisKChrisK

    Thanks for your answer. Could take a look into it again today. From what I understand is, that I don't need a dt-blob.bin file anymore, as long as I don't use the legacy or FKMS display stack. And looking into the written emteria image, there is no dt-blob.bin file.

    The dt-blob.dts has been removed from the current raspberry GitHub repo too.

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