[U-Boot] [PATCH] serial: add environment control for SERIAL_MULTI

[Joe Hershberger]

Hi Stephen,

On Thu, Oct 25, 2012 at 5:45 PM, Stephen Warren <swarren at wwwdotorg.org> wrote:
> On 10/25/2012 04:36 PM, Joe Hershberger wrote:
>> Hi Allen,
>>
>> On Thu, Oct 25, 2012 at 4:59 PM, Allen Martin <amartin at nvidia.com> wrote:
>>> Add a new special environment variable "serial" that allows selection
>>> of serial device when CONFIG_SERIAL_MULTI is defined.  This replaces
>>> the existing calls to serial_assign() from cmd_nvedit.c and iomux.c
>>> that were not doing anything.
> ...
>> Changes to this directly conflict with the environment callback series
>> I sent out RFC (soon be be a real series).  Can we hold off on this
>> until that happens?
>
> The problem here is that serial output on Tegra simply doesn't work
> (after some point in boot?) without this patch. It seems better to get
> everything working before adding new features doesn't it? Otherwise, if
> the environment callback stuff (or any other change right now) breaks
> something Tegra-specific, there would be no way to identify which change
> broke it.

Fair enough.  However I don't think this patch is the right way to fix it.

-Joe