[U-Boot] [U-Boot, v2, 2/2] bcm283x_pl011: Flush RX queue after setting baud rate

[Tom Rini]

On Wed, Mar 07, 2018 at 10:08:25PM +0100, Alexander Graf wrote:

> After the UART was initialized, we may still have bogus data in the
> RX queue if it was enabled with incorrect pin muxing before.
> 
> So let's flush the RX queue whenever we initialize baud rates.
> 
> This fixes a regression with the dynamic pinmuxing code when enable_uart=1
> is not set in config.txt on Raspberry Pis that use pl011 for serial.
> 
> Fixes: caf2233b28 ("bcm283x: Add pinctrl driver")
> Reported-by: Göran Lundberg <goran at lundberg.email>
> Reported-by: Peter Robinson <pbrobinson at gmail.com>
> Signed-off-by: Alexander Graf <agraf at suse.de>
> Tested-by: Peter Robinson <pbrobinson at gmail.com>
> Tested-by: Tuomas Tynkkynen <tuomas at tuxera.com>

Applied to u-boot/master, thanks!

-- 
Tom
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