[PATCH] smccc: fix sign bit expansion

[Tom Rini]

On Tue, Jan 05, 2021 at 08:03:11PM +0000, Volodymyr Babchuk wrote:

> Signed ARM_SMCCC_FAST_CALL value is shifted to 31'st bit. Then, it is expanded
> to 64 bit value, which results in 1s in higher 32 bits.
> 
> This causes corrupted values in 64-bit SMC IDs and issues in buggy handlers of
> 32-bit calls.
> 
> We need to make ARM_SMCCC_FAST_CALL unsigned long, so it would work properly
> on 32 bit architectures.
> 
> Signed-off-by: Volodymyr Babchuk <volodymyr_babchuk at epam.com>
> Reviewed-by: Jens Wiklander <jens.wiklander at linaro.org>

Applied to u-boot/master, thanks!

-- 
Tom
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