U-Boot on SPI flash - discussion

[Arwen]

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Therefore, we agree having an SPI boot requires the SPI to look for a bootable SD to have that same recovery procedure.  So moving forward, since disabling or overriding the SPI is difficult, the SPI writing procedure should also "read after write" to make sure it was written correctly.

Yes, the SPI boot should look for a bootable SD card first.

And yes, we probably should check the program that writes the SPI, and see if it does a "read after write" verification step. If not, we can probably do so ourselves in a wrapper script.

I've not yet received my eMMC order for my ROCKPro64. Whence it arrives I can start fumbling through some of the details. It has easier SPI recovery, which is one of the first things I need to setup. Then I can look at various SPI U-Boot features.