Can I clarify/sanity check this one please?

 

As of the January (or thereabouts) timeframe, u-boot has been patched so
that it now checks the SD card first then eMMC? (Evidence would strongly
suggest this is the case J ), irrespective of boot-switch .

 

i.e. we've got something like this  (obviously assumes a recently flashed
board)

 

Power => eMMC MLO => eMMC u-boot

If (sdcard)

   Load image+dtb  from sd/boot

Else

      Load image+dtb  from emmc/boot

 

Which leads me to 1 other point: presumably u-boot is still set to look for
/boot on the 2nd partition which is why we are still all formatting SD cards
with a little bit of FAT32?

 

Cheers!

 

Ref:
https://github.com/eewiki/u-boot-patches/blob/master/v2015.01/0001-am335x_ev
m-uEnv.txt-bootz-n-fixes.patch and others.

 

 

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