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Re: Install on Orange Pi Plus eMMC work but no reboot

On Fri, 2016-10-07 at 01:44 +0200, Jean-Christian de Rivaz wrote:
> Le 07. 10. 16 à 00:30, Karsten Merker a écrit :
> > So the boot order might not be problematic on the Orange Pi Plus, but
> > it can definitely be problematic on A64-based systems and it might
> > possibly be problematic on other H3-based boards.
> Did you realize that SD card and eMMC uses both exactly the same 
> signaling and controller on all processors, not only on the Allwinner
> family ?

This is not true.  There are many signalling modes for SD and eMMC, few
of which work for both of them.  As a result there are some controllers
that only support one or the other (e.g. in R-Car SoCs).

> If a board designer is stupid enough to connect the eMMC 
> instead of the SD card on the controller looked first by the on chip 
> ROM, then it's not an argument to not support all the others boards that 
> did it the right way.

I can agree with that.

> Stupid boards need stupid recovery procedure anyway, regardless of the 
> operating system. This is not a Debian problem. Or least Debian should 
> not try to officially support broken boards. 

Just as all software is buggy, all hardware is buggy.  So yes, we
should try to support broken boards, so far as we can.


Ben Hutchings
Every program is either trivial or else contains at least one bug

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