[U-Boot] [U-Boot, 3/3] config: Update envs for trats and trats2 - Disable L2 cache

[Tom Rini]

On Tue, Jan 14, 2014 at 08:02:26AM +0100, Łukasz Majewski wrote:
> Disable L2 caches for Trats and Trats2 devices.
> 
> It turns out that for data downloading with thordown command L2 cache
> disablement brings a significant speed improvement.
> 
> rootfs - 400 MiB:
> - L2 cache enabled:			2.69 MiB/s
> - L2 cache disabled: 			5.56 MiB/s
> 
> Such improvement is possible due to reduction of the need to invalidate
> redundant data, which resides in L2 cache.
> 
> Since the sent USB request size at once is 512B (L1 - 32 KiB in total) -
> one can be quite confident that it is already available in L1 and L2 can
> be disabled.
> 
> Change-Id: I911ea18075526f7e8295c30dfcf7a658ebc4e53b
> Signed-off-by: Lukasz Majewski <l.majewski at samsung.com>
> Acked-by: Minkyu Kang <mk7.kang at samsung.com>

Applied to u-boot/master, thanks!

-- 
Tom
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