[U-Boot] [PATCH 2/6] ARM: tegra: Disable SPL and non-cached memory on 64-bit

[Tom Rini]

On Fri, Mar 20, 2015 at 10:26:12AM -0600, Stephen Warren wrote:
> On 03/20/2015 06:24 AM, Thierry Reding wrote:
> >From: Thierry Reding <treding at nvidia.com>
> >
> >For 64-bit ARM SoCs we rely on non-U-Boot code to bring up the CPU in
> >AArch64 mode so that we don't need the SPL. Non-cached memory is not
> >implemented (yet) for 64-bit ARM.
> 
> >diff --git a/include/configs/tegra-common.h b/include/configs/tegra-common.h
> 
> >+#ifndef CONFIG_ARM64
> >  #ifndef CONFIG_SPL_BUILD
> >  #define CONFIG_USE_ARCH_MEMCPY
> >  #endif
> >+#endif
> 
> We don't need SPL, but that stanza used to enable ARCH_MEMCPY
> *except* for SPL. I would expect we still want ARCH_MEMCPY on ARM64,
> where presumably ifndef CONFIG_SPL_BUILD will always be true?

First we need arch memcpy/memset for aarch64 copied over (and maybe
update the 32bit one and get everyone using them).

-- 
Tom
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