Re: [PATCH 2/2] ARM: dts: owl-s500-roseapplepi: Add ethernet support

Manivannan Sadhasivam
2021-06-11T06:39:50Z

On Fri, Jun 11, 2021 at 09:31:47AM +0300, Cristian Ciocaltea wrote:
> On Fri, Jun 11, 2021 at 11:26:06AM +0530, Manivannan Sadhasivam wrote:
> > On Fri, Jun 11, 2021 at 12:09:22AM +0300, Cristian Ciocaltea wrote:
> > > Add pinctrl configuration for enabling the Ethernet MAC on RoseapplePi
> > > SBC. Additionally, provide the necessary properties for the generic S500
> > > ethernet node in order to setup PHY and MDIO.
> > >
> > > Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
> > > ---
> > > arch/arm/boot/dts/owl-s500-roseapplepi.dts | 56 ++++++++++++++++++++++
> > > 1 file changed, 56 insertions(+)
> > >
> > > diff --git a/arch/arm/boot/dts/owl-s500-roseapplepi.dts b/arch/arm/boot/dts/owl-s500-roseapplepi.dts
> > > index b8c5db2344aa..bffabc7eaa50 100644
> > > --- a/arch/arm/boot/dts/owl-s500-roseapplepi.dts
> > > +++ b/arch/arm/boot/dts/owl-s500-roseapplepi.dts

[...]

> > > + mdio {
> > > + #address-cells = <1>;
> > > + #size-cells = <0>;
> > > +
> > > + reset-gpios = <&pinctrl 88 GPIO_ACTIVE_LOW>; /* GPIOC24 */
> > > + reset-delay-us = <10000>;
> > > + reset-post-delay-us = <150000>;
> >
> > reset-* properties belong to "ethernet-phy" node. Also, while adding new nodes
> > please run the dtbs_check and try to address the warnings.
>
> The properties are those described in Documentation/devicetree/bindings/net/mdio.yaml

Do you mean the reset properties are applicable for all PHYs in this SoC?

> The dtbs_check doesn't report any issues in my case, usually this
> happens when dtschema is not updated to the latest version. I always
> run the following command after rebasing to a new kernel version:
>
> pip3 install --upgrade dtschema
>

That's good!

Thanks,
Mani

> Thanks for the review,
> Cristi
>
> > Thanks,
> > Mani
> >
> > > +
> > > + eth_phy: ethernet-phy@3 {
> > > + reg = <0x3>;
> > > + max-speed = <100>;
> > > + interrupt-parent = <&sirq>;
> > > + interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
> > > + };
> > > + };
> > > +};
> > > +
> > > &twd_timer {
> > > status = "okay";
> > > };
> > > --
> > > 2.32.0
> > >