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

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Message-ID: <cbeb1b6b-1b02-7665-0f1f-847ab8de69e3@cogentembedded.com>
Date:   Wed, 21 Feb 2018 18:48:59 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:     jacopo mondi <jacopo@...ndi.org>
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

Hello!

On 02/21/2018 01:07 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?

   Yes, unless Simon would fix it while merging...

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

MBR, Sergei