[U-Boot] Fix for ns16550 driver hanging on OMAP4

[Tom Rini]

On Mon, Nov 10, 2014 at 11:04:10AM -0800, Gregoire Gentil wrote:

> Here is a patch to apply the same fix on OMAP4 boards as on OMAP3, in 
> order to prevent ns16550 hanging during SPL boot,
> 
> Grégoire
> 
> 
> 
> mode before
>           * SPL starts only THRE bit is set. We have to empty the 
> transmitter
>           * before initialization starts.
>           */
> 
> 
> 
> Grégoire
> 
> diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c
> index 8f05191..a1d3781 100644

Applied to u-boot-ti/master after re-wordding commit message, thanks!

-- 
Tom
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