From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Warren <swarren@wwwdotorg.org>
Date: Fri, 20 Mar 2015 10:26:12 -0600
Subject: [U-Boot] [PATCH 2/6] ARM: tegra: Disable SPL and non-cached
 memory on 64-bit
In-Reply-To: <1426854262-1248-2-git-send-email-thierry.reding@gmail.com>
References: <1426854262-1248-1-git-send-email-thierry.reding@gmail.com>
 <1426854262-1248-2-git-send-email-thierry.reding@gmail.com>
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On 03/20/2015 06:24 AM, Thierry Reding wrote:
> From: Thierry Reding <treding@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?