[U-Boot] [PATCH] mmc: sunxi: Only update timing mode bit when enabling new timing mode

[Jagan Teki]

On Thu, Aug 31, 2017 at 7:34 PM, Maxime Ripard
<maxime.ripard at free-electrons.com> wrote:
> On Thu, Aug 31, 2017 at 09:57:48PM +0800, Chen-Yu Tsai wrote:
>> When enabling the new mmc timing mode, we inadvertently clear all the
>> remaining bits in the new timing mode register. The bits cleared
>> include a default phase delay on the output clock. The BSP kernel
>> states that the default values are supposed to be used. Clearing them
>> results in decreased performance or transfer errors on some boards.
>>
>> Fixes: de9b1771c3b6 ("mmc: sunxi: Support new mode")
>> Signed-off-by: Chen-Yu Tsai <wens at csie.org>
>
> Acked-by: Maxime Ripard <maxime.ripard at free-electrons.com>

Reviewed-by: Jagan Teki <jagan at openedev.com>

thanks!
-- 
Jagan Teki
Free Software Engineer | www.openedev.com
U-Boot, Linux | Upstream Maintainer
Hyderabad, India.