[Letux-kernel] Strange problem with non-LPAE letux-4.20-rc kernels on 4GB Pyra only

Andreas Kemnade andreas at kemnade.info
Fri Dec 7 12:09:33 CET 2018


On Fri, 7 Dec 2018 09:22:12 +0100
"H. Nikolaus Schaller" <hns at goldelico.com> wrote:

[...]
> This pin has a 100k pullup to 1.8V and 800mV is a typical symptom that
> the gpio pin does have a pull-down enabled and not a pull-up or internal
> pull disabled..
> 
And this 800mV has probably a big tolerance, so depending on the phase of the
moon or something like that, it might work or not.
I had the sd card disappearing here once. I just thought it was an adapter
problem but it is probably just the voltage level at that pin.

Regards,
Andreas
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