[U-Boot] [PATCH] arm: lib: memcpy: Do not copy to same address

Albert ARIBAUD
2011-08-12T08:49:48Z

On 23/05/2011 11:06, Matthias Weisser wrote:
> In some cases (e.g. bootm with a elf payload which is already at the right
> position) there is a in place copy of data to the same address. Catching this
> saves some ms while booting.
>
> Signed-off-by: Matthias Weisser<weisserm@arcor.de>
> ---
> arch/arm/lib/memcpy.S | 3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/lib/memcpy.S b/arch/arm/lib/memcpy.S
> index 3b5aeec..f655256 100644
> --- a/arch/arm/lib/memcpy.S
> +++ b/arch/arm/lib/memcpy.S
> @@ -60,6 +60,9 @@
> .globl memcpy
> memcpy:
>
> + cmp r0, r1
> + moveq pc, lr
> +
> enter r4, lr
>
> subs r2, r2, #4

Applied to u-boot-arm/master, thanks.

Amicalement,
--
Albert.