[PATCH v3] ARC: [plat-hsdk]: Add reset controller node to manage ethernet reset

Eugeniy Paltsev Eugeniy.Paltsev at synopsys.com
Thu Oct 5 06:26:25 PDT 2017


On Thu, 2017-10-05 at 06:04 -0700, Vineet Gupta wrote:
> Hi Eugeniy,
> 
> On 09/22/2017 09:49 AM, Eugeniy Paltsev wrote:
> > DW ethernet controller on HSDK hangs sometimes after SW reset, so
> > add reset node to make possible to reset DW ethernet controller HW.
> > 
> > Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev at synopsys.com>
> > ---
> > Changes v2 -> v3:
> >    * Remove v1 suffix as we finaly got rid of v1 suffix in reset
> >      driver and docs.
> >    * Rename reset node to "reset-controller" for consistency with
> >      the other bindings.
> > 
> > Changes v1 -> v2:
> >    * Enable HSDK reset driver in hsdk_defconfig
> 
> Revisiting this given that changes to driver have been merged upstream: we 
> currently carry a reset workaround for axs+ethernet, i.e. your patch
> 
>      ARC: [plat-axs103] Add temporary quirk to reset ethernet IP
> 
> But there's nothing similar for HSDK. IOW, we don't need to revert anything foro 
> hsdk, after this gets applied ?

That’s correct. We don't need to revert anything for hsdk.
We only need to apply this patch.

> -Vineet
-- 
 Eugeniy Paltsev


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