[U-Boot] [PATCH] ns16550: tegra: Specify debugging serial port at boot.

Doug Anderson dianders at chromium.org
Tue Jan 10 02:26:54 CET 2012


On Fri, Jan 6, 2012 at 2:51 PM, Stephen Warren <swarren at nvidia.com> wrote:
> From: Doug Anderson <dianders at chromium.org>
>
> This works together with a kernel change that looks at the scratchpad
> register to determine which of the many UARTs it should use for early
> printing:
>
> http://www.spinics.net/lists/arm-kernel/msg154633.html
>
> While it is unfortunate to need to pass this information in a second way
> (it's already in the device tree), this does allow the very early boot
> code (decompressing stub and early assembly code) to print to the right
> port.
>
> At the moment, I'm adding this to the UART init function. Alternatively,
> we could add a more complex patch to key off of the 'console' setting.
>
> Signed-off-by: Doug Anderson <dianders at chromium.org>
> [swarren: Limited the change to Tegra platforms]
> Signed-off-by: Stephen Warren <swarren at nvidia.com>

Acked-by: Doug Anderson <dianders at chromium.org>


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