Hi Kukjin,

On 15 May 2012 10:01, Inderpal Singh <inderpal.si...@linaro.org> wrote:
> Hi Kukjin,
>
> On 14 May 2012 19:13, Kukjin Kim <kgene....@samsung.com> wrote:
>> On 05/14/12 17:42, Inderpal Singh wrote:
>>>
>>> Hi Kukjin,
>>>
>>> On 14 May 2012 13:45, Kukjin Kim<kgene....@samsung.com>  wrote:
>>>>
>>>> Inderpal Singh wrote:
>>>>>
>>>>>
>>>>> Upon wake-up, clear the sleep mode set in INFORM1 register.
>>>>>
>>>> Is this for wake-up or _really_ software reset? And is this available on
>>>> all
>>>> of EXYNOS4 SoCs?
>>>
>>>
>>> This is for soft reboot hang after one cycle of suspend/resume is
>>> complete.
>>> And yes this is applicable for all exynos SOCs.
>>>
>> Hi,
>>
>> As I know, we don't need it for all of EXYNOS SoCs but let me check about
>> the situation you said with hardware engineer tomorrow. If any updates, let
>> you know.
>>
>

Any updates on this ?
As i mentioned below, Its applicable for Origen, Pegasus and 5250 as well.

> The issue happens because u-boot checks INFROM1 register to know if
> its wake-up from sleep. Hence if INFORM1 is not cleared, the soft
> reboot after one suspend/resume cycle will be understood by u-boot as
> wake-up from sleep, so it will try to resume and will hang up.
>
> I have faced this issue on Origen, Pegasus SMDK and 5250 SMDK.
>
> Thanks,
> Inder
>
>>
>> Thanks.
>>
>> Best regards,
>> Kgene.
>> --
>> Kukjin Kim <kgene....@samsung.com>, Senior Engineer,
>> SW Solution Development Team, Samsung Electronics Co., Ltd.

With Regards,
Inder
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