linux-kernel - Re: [PATCH v2 19/19] ARM64: dts: r8a77965: Add EtherAVB device node

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Date:   Wed, 21 Feb 2018 11:07:16 +0100
From:   jacopo mondi <jacopo@...ndi.org>
To:     Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Cc:     Jacopo Mondi <jacopo+renesas@...ndi.org>, geert@...ux-m68k.org,
        horms@...ge.net.au, magnus.damm@...il.com, robh+dt@...nel.org,
        mark.rutland@....com, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-renesas-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 19/19] ARM64: dts: r8a77965: Add EtherAVB device node

Hi Sergei,

On Tue, Feb 20, 2018 at 06:30:56PM +0300, Sergei Shtylyov wrote:
> On 02/20/2018 06:12 PM, Jacopo Mondi wrote:
>
> > Populate the ethernet@...00000 device node to enable Ethernet interface
> > for R-Car M3-N (r8a77965) SoC.
> >
> > Signed-off-by: Jacopo Mondi <jacopo+renesas@...ndi.org>
> > Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
> >
> > ---
> > v1 -> v2:
> > - Replace ALWAYS_ON power area identifier with numeric constant
> > ---
> >  arch/arm64/boot/dts/renesas/r8a77965.dtsi | 43 ++++++++++++++++++++++++++++++-
> >  1 file changed, 42 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/arm64/boot/dts/renesas/r8a77965.dtsi b/arch/arm64/boot/dts/renesas/r8a77965.dtsi
> > index 55f05f7..c249895 100644
> > --- a/arch/arm64/boot/dts/renesas/r8a77965.dtsi
> > +++ b/arch/arm64/boot/dts/renesas/r8a77965.dtsi
> > @@ -520,7 +520,48 @@
> >  		};
> >
> >  		avb: ethernet@...00000 {
> > -			/* placeholder */
> > +			compatible = "renesas,etheravb-r8a77965",
> > +				     "renesas,etheravb-rcar-gen3";
> > +			reg = <0 0xe6800000 0 0x800>, <0 0xe6a00000 0 0x10000>;
> > +			interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>,
> > +				     <GIC_SPI 63 IRQ_TYPE_LEVEL_HIGH>;
> > +			interrupt-names = "ch0", "ch1", "ch2", "ch3",
> > +					  "ch4", "ch5", "ch6", "ch7",
> > +					  "ch8", "ch9", "ch10", "ch11",
> > +					  "ch12", "ch13", "ch14", "ch15",
> > +					  "ch16", "ch17", "ch18", "ch19",
> > +					  "ch20", "ch21", "ch22", "ch23",
> > +					  "ch24";
> > +			clocks = <&cpg CPG_MOD 812>;
> > +			power-domains = <&sysc 32>;
> > +			resets = <&cpg 812>;
> > +			phy-mode = "rgmii-txid";
>
>    Why not just "rgmii"? TX delay is a board specific detail, no?
>

I admit I took this one straight from r8a7796 dtsi.
Would you like to me resend and change this?

Thanks
   j

> > +			#address-cells = <1>;
> > +			#size-cells = <0>;
> > +			status = "disabled";
> >  		};
> >
> >  		csi20: csi2@...80000 {
> >
>
> MBR, Sergei