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

[Benoît Thébaudeau]

Hi Michael,

On 24/01/2018 at 17:46, Michael Nazzareno Trimarchi wrote:
> 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)

Not sure I can find time for that. Perhaps in a few days.

Best regards,
Benoît