Installation Debian on emmc: which U-Boot and where?

[vongillus]

Hello,

I bought a rockpro64 2.1 with a 32gb emmc module.

I read different wiki pages and ended up installing U-Boot on the spi.

But even if U-Boot works and I could finish the Debian install on emmc (which I did before installing U-Boot), everytime I boot it seems like it doesn't detect anymore emmc. It's says:

Card did not respond to voltage select! : -110

Ok then I thought it's a wrong version of U-Boot so I installed towboot.

But I get the same error.

Any idea what I am doing wrong there?

Thanks