[U-Boot] cmd: Add command for calculating binary operations

[Tom Rini]

On Wed, Mar 28, 2018 at 02:39:18PM +0200, Mario Six wrote:

> This patch adds a command that enables the calculation of bit operations
> (AND, OR, XOR) on binary data from the command line. Memory locations as
> well as the contents of environment variables are eligible as sources
> and destination of the binary data used in the operations.
> 
> The possible applications are manifold: Setting specific bits in
> registers using the regular read-OR-write pattern, masking out bits in
> bit values, implementation of simple OTP encryption using the XOR
> operation, etc.
> 
> Signed-off-by: Mario Six <mario.six at gdsys.cc>

Applied to u-boot/master, thanks!

-- 
Tom
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