[PATCH v2 2/2] arm64: Update memcpy_{from, to}io() helpers

[Tom Rini]

On Mon, Jul 19, 2021 at 11:21:51AM +0200, Patrick Delaunay wrote:

> From: Patrice Chotard <patrice.chotard at foss.st.com>
> 
> At early U-Boot stage, before relocation, MMU is not yet configured
> and disabled. DDR may not be configured with the correct memory
> attributes (can be configured in MT_DEVICE instead of MT_MEMORY).
> 
> In this case, usage of memcpy_{from, to}io() may leads to synchronous
> abort in AARCH64 in case the normal memory address is not 64Bits aligned.
> 
> To avoid such situation, forbid usage of normal memory cast to (u64 *) in
> case MMU is not enabled.
> 
> Signed-off-by: Patrice Chotard <patrice.chotard at foss.st.com>
> Reviewed-by: Patrick Delaunay <patrick.delaunay at foss.st.com>
> Cc: mark.kettenis at xs4all.nl
> Signed-off-by: Patrick Delaunay <patrick.delaunay at foss.st.com>

Applied to u-boot/master, thanks!

-- 
Tom
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