BPI-M2 Ultra github have update eMMC boot code

Banana Pi SBCs design BPI-M2 Ultra / BPI-M2 Berry(A40i)
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BPI-M2 Ultra github have update eMMC boot code .

emmc1.jpg700×933 69.9 KB

code on github

emmc2.jpg700×488 84.3 KB

test BPI-M2 Ultra boot from linux eMMC flash

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Hi there,

I am wondering actually does the R40 chip uses/treats/addresses the eMMC as an uSD (interfacing as SDIO device), or in an actual eMMC way ?

BR, markov85

3

it it an actual eMMC interface.

BPI-M2 Ultra schematic diagram

https://bananapi.gitbooks.io/bpi-m2-ultra-open-source-single-board-computer/content/bpi-m2ultraschematicdiagram.html