[PATCH v3 02/11] dt-bindings: remoteproc: mediatek: Support MT8195 dual-core SCP

Peng Fan peng.fan at nxp.com
Wed Sep 28 02:37:25 PDT 2022


> Subject: Re: [PATCH v3 02/11] dt-bindings: remoteproc: mediatek: Support
> MT8195 dual-core SCP
> 
> On Wed, 2022-09-28 at 15:01 +0800, Peng Fan wrote:
> >
> > On 9/27/2022 10:55 AM, Tinghan Shen wrote:
> > > The MT8195 SCP is a dual-core RISC-V MCU. Extend the yaml file to
> > > describe the 2nd core as a subnode of the boot core.
> > >
> > > The configuration register is shared by MT8195 SCP core 0 and core
> > > 1. The core 1 can retrieve the information of configuration
> > > registers from parent node.
> >
> > I think the commit message would not convince people you put scp 1 as
> > subnode of scp 0.
> >
> > Regards,
> > Peng.
> >
> Hi Peng,
> 
> Thanks for your review. I should give the most reasonable explanation for
> why SCP 1 is a subnode.
> 
> Adding SCP 1 as a subnode helps to assure finish probing SCP 1 before
> starting SCP 0 by using of_platform_populate. It's because that I want to
> probe SCP 1 as a remoteproc subdevice of SCP 0.
> such that when SCP 0 crashed, SCP 0 can reboot SCP 1.

Binding is for describing hardware..

Regards,
Peng.

> 
> Regards,
> TingHan
> 
> 
> 
> 



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