[PATCH v4 2/2] serial: mxc: Speed-up character transmission

[sbabic at denx.de]

> Instead of waiting for empty FIFO condition before writing a
> character, wait for non-full FIFO condition.
> This helps in saving several tens of milliseconds during boot
> (depending verbosity).
> Signed-off-by: Loic Poulain <loic.poulain at linaro.org>
> Tested-by: Lothar Waßmann <LW at KARO-electronics.de>
> Acked-by: Pali Rohár <pali at kernel.org>
> Reviewed-by: Fabio Estevam <festevam at denx.de>
> Tested-by: Fabio Estevam <festevam at denx.de>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

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