Manual: Howto cross-compile Upstream U-Boot for rock64

[rock7]

Thank you for sharing, the guide looks very promising!

Just one question: Does the u-boot obtained in this process also work from SPI flash or only from microsd? I tried flashing the precompiled uboot from ArchLinuxArm, but it fails with loading the ARM trusted firmware as it seems:

Code:

LoadTrustBL
LoadTrustBL error: -1

I haven't tried it yet with SPI flash, you can follow this guide: https://github.com/ayufan-rock64/linux-b...ash-spi.md

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@rock7 I followed your steps and successfully built everything using the upstream arm-trusted-firmware repository. However, it seems like my u-boot does not recognize sdcards:

Code:

Trying to boot from MMC1
Card did not respond to voltage select!
spl: mmc init failed with error: -95
Trying to boot from MMC2
...

I tried playing around with some of the config options as well as different mainline u-boot versions.
Does booting work for you?

If this problem occurs, just restart. It rarely happens, I don't know why it happens yet.