[U-Boot] [PATCH] imx: mx25: Remove SION bit in all pin-mux

[Michael Nazzareno Trimarchi]

Hi Fabio

On Wed, Jan 24, 2018 at 5:38 PM, Fabio Estevam <festevam at gmail.com> wrote:
> Hi Michael,
>
> [Removed usb list as this is off-topic for them]
>
> On Wed, Jan 24, 2018 at 2:31 PM, Michael Nazzareno Trimarchi
> <michael at amarulasolutions.com> wrote:
>
>> Can you check where SION bit is mandatory for mx25? I have on IMX51
>> some PINMUX where sion is enabled.
>> I can clean up a bit the patch to just minimize the change. We have for example:
>
> I think it depends on the pin function per board design, no?
>

I don't have a pdk and it's difficult to find them so I need to check. Anyway
some revision of the firmware on this pendrive are working but the latest one
is not working. I have a lot of pen drives and all of them are fully working.

> Benoît brings a good point: what is the exact pin that causes the USB
> failure on your case?

I have tested only with uart and already it does not let it work
properly. So I can try
to limit in my boot case but I don't think that having SION bit
pre-defined it's valid
at all. We have a limited number of pin mux with SION enable on any nxp
architecture right now for every architecture.

* Benoit * can you test them? I will provide a better changeset let
sdcard and some ethernet pin
in the right configuation (even ethernet was working without SION enable)

>
> Let's try to understand the exact pin that is causing the problem on your board.
>

I will check it out. This was an initial patch proposal

> Thanks



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| Michael Nazzareno Trimarchi                     Amarula Solutions BV |
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