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

[Minkyu Kang]

On 14/01/14 16:02, Lukasz 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>
> ---
>  include/configs/trats.h  |    1 +
>  include/configs/trats2.h |    1 +
>  2 files changed, 2 insertions(+)
> 

Acked-by: Minkyu Kang <mk7.kang at samsung.com>

Thanks,
Minkyu Kang.