[U-Boot] [PATCH 2/4] Exynos5420: Remove code for enabling read leveling

[Akshay Saraswat]

Hi Simon,

>Hi Akshay,
>
>On 21 May 2014 23:33, Akshay Saraswat <akshay.s at samsung.com> wrote:
>> This patch intends to remove all code which enables hardware read
>> leveling. All characterization environments may not cope up with
>> h/w read leveling enabled, hence,  we need to disable this.
>> Also, disabling h/w read leveling improves the MIF LVcc value
>> (LVcc value is the value at which DDR will fail to work properly).
>> Improving LVcc means we have enough voltage margin for MIF.
>> When h/w leveling is enabled, we have almost zero volatge margin.
>>
>> Signed-off-by: Alim Akhtar <alim.akhtar at samsung.com>
>> Signed-off-by: Akshay Saraswat <akshay.s at samsung.com>
>
>Acked-by: Simon Glass <sjg at chromium.org>
>
>Does this mean that the read_leveling_enable structure member is not used?
>

Yes, we don't use read_leveling_enable structure member anymore but I think it's
good to keep it because if we update this file in future for next version of SoCs,
we may need it.

>
>Regards,
>Simon
>

Regards,
Akshay Saraswat