Re: [PATCH v8 10/13] dt-bindings: mips: cpu: Add property for broken HCI information

From: Aleksandar Rikalo
Date: Tue Oct 29 2024 - 08:22:32 EST


On Tue, Oct 29, 2024 at 8:03 AM Krzysztof Kozlowski <krzk@xxxxxxxxxx> wrote:

> > diff --git a/Documentation/devicetree/bindings/mips/cpus.yaml b/Documentation/devicetree/bindings/mips/cpus.yaml
> > index a85137add668..57e93c07ab1b 100644
> > --- a/Documentation/devicetree/bindings/mips/cpus.yaml
> > +++ b/Documentation/devicetree/bindings/mips/cpus.yaml
> > @@ -47,6 +47,12 @@ properties:
> > clocks:
> > maxItems: 1
> >
> > + cm3-l2-config-hci-broken:
>
> Are these names - cm3, l2, hci - obvious and known in MIPS? HCI usually
> means something else - see drivers/bluetooth/ and drivers/nfc/

I would say yes. At least the name "CM3" (Coherence Manager 3) is
common knowledge.
L2 HCI (L2 Hardware Cache Initialization) is a feature of CM3 that is
non-functional on some systems.

> Is this property applicable for all MIPS vendors? There is no vendor
> prefix here, so this is generic for this architecture, right?

I'm honestly not sure if this is something that only one vendor will use.
Theoretically, there could be more. Perhaps Gregory CLEMENT can give a
more precise answer.

Best Regards,
Aleksandar