[U-Boot] [U-Boot,v4,1/5] lib: Add wait_for_bit

[Tom Rini]

On Sat, Jan 23, 2016 at 11:54:29AM +0100, Mateusz Kulikowski wrote:

> Add function to poll register waiting for specific bit(s).
> Similar functions are implemented in few drivers - they are almost
> identical and can be generalized.
> Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski at gmail.com>
> Reviewed-by: Tom Rini <trini at konsulko.com>

Applied to u-boot/master, thanks!

-- 
Tom
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