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SubjectRe: [v3 2/2] ARM: tegra: Skip scu_enable(scu_base) if not Cortex A9
Stephen,

On Thursday 24 January 2013 10:34 AM, Stephen Warren wrote:
> On 01/23/2013 01:58 AM, Santosh Shilimkar wrote:
>> On Tuesday 22 January 2013 10:34 PM, Olof Johansson wrote:
>>> On Tue, Jan 22, 2013 at 8:57 AM, Stephen Warren
>>> <swarren@wwwdotorg.org> wrote:
>>>> On 01/21/2013 11:07 PM, Santosh Shilimkar wrote:
>>>>> On Tuesday 22 January 2013 11:22 AM, Hiroshi Doyu wrote:
>>>>>> Skip scu_enable(scu_base) if CPU is not Cortex A9 with SCU.
>>>>>>
>>>>>> Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
>>>>>> ---
>>>>> Looks fine. I will also update OMAP code with the new
>>>>> interface. Thanks.
>>>>
>>>> OK, so patch 1/2 at least needs to get into a stable arm-soc branch
>>>> then. Unless there are violent objections, I'll forward patch 1/2 to
>>>> arm-soc and request it be added into a branch so that Tegra and OMAP can
>>>> both merge it into their branches as a dependency. I guess patch 2/2
>>>> could also be included; I don't think it has any complex dependencies
>>>> that'd prevent that, and would help to show how patch 1/2 gets used.
>>>>
>>>> Hiroshi, is this series the only dependency you need for your Tegra114
>>>> series? So, I could merge your Tegra114 series once this series is
>>>> applied?
>>>
>>> For something like this, it might make more sense for us to just apply
>>> the patches for OMAP on top, i.e. we'll pull the short branch from
>>> you, and then we can just apply patches (with maintainer acks) on top,
>>> instead of doing a bunch of single-patch pulls.
>>
>> In case you decide to apply patches, you can use patch in the end
>> of the email for OMAP. Attached the same in case mailer damages it.
>>
>> Btw, I noticed the build error with patch 1/1. Since I wasn't using
>> the first interface in OMAP code, I just bypassed it for testing.
>> I might be missing some dependent patch which added
>> read_cpuid_part_number().
>
> Thanks for the OMAP patch. I have pushed a couple of temporary and
> non-stable branches to:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra.git
>
> Branch scu-base-rework contains just the SCU base address patches. After
> the few things listed below, I'll rename this branch and send a pull
> request to arm-soc.
>
> 1) Olof asked that Russell Ack or otherwise OK Hiroshi's latest versions
> of the following two patches since he commented on previous versions:
>
> ARM: tegra: Skip scu_enable(scu_base) if not Cortex A9
> ARM: Add API to detect SCU base address from CP15
>
> 2) Lorenzo's last comment on "ARM: tegra: Use DT /cpu node to detect
> number of CPU core" was:
>
> Please add missing punctuation, reword the commit log to make it clearer.
>
> ... so that patch needs a reworded commit log.
>
> 3) This branch needs testing on both Tegra30 and OMAP (I'm away from the
> office at the moment and can only test on Tegra20 here),
>
Tested 'scu-base-rework' branch on OMAP and it works just fine. I
noticed that the OMAP patch subject got line wrapped. Can you
please fix that before sending pull request ?
Thanks for picking up the patch.

Regards,
Santosh



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