[U-Boot] [U-Boot, v3, 07/15] serial_bcm283x_mu: Fail loading if not muxed

[Tom Rini]

On Thu, Jan 25, 2018 at 12:05:48PM +0100, Alexander Graf wrote:

> The bcm283x mini-uart is only really usable as U-Boot serial output
> when it is muxed to the UART pins of the RPi pin header.
> 
> So fail probing in case it is not muxed correctly, as in that case
> firmware did not initialize it properly either.
> 
> Signed-off-by: Alexander Graf <agraf at suse.de>

Applied to u-boot/master, thanks!

-- 
Tom
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