[PATCH v2 1/2] ARM: imx: enable smp for i.MX7D

Zhi Li lznuaa at gmail.com
Wed May 27 07:30:48 PDT 2015


On Wed, May 27, 2015 at 6:54 AM, Shawn Guo <shawn.guo at linaro.org> wrote:
> On Tue, May 26, 2015 at 10:01:00AM -0500, Zhi Li wrote:
>> what's name do you prefer?
>
> If we have to create a new driver, I prefer to name it after imx7.
>
>> Totally difference.
>>
>> http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/tree/arch/arm/mach-imx/gpcv2.c?h=imx_3.14.28_7d_alpha&id=a34e259cc0a4e86ccb993c947991d2823d81eb14
>>
>> Only simular part is that GPC irq mask, which only bit possition and
>> register offfset change.
>
> So at least GPC needs to be initialized as stacked IRQ domain.  Please
> check out commit b923ff6af0d5 (ARM: imx6: convert GPC to stacked
> domains) for how it should be done.

Yes!. Shenwei is working this.

Stacked IRQ is mainly for suspend/resume.
Plan move to irqchip. Register define also changed.

ARM power ON/OFF should be like regulator. but I have not any other
platform use regulator interface to control
ARM core power.

>
> Shawn



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