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Date:   Fri, 9 Dec 2022 09:28:06 +0800
From:   yanhong wang <yanhong.wang@...rfivetech.com>
To:     Conor Dooley <conor@...nel.org>
CC:     <linux-riscv@...ts.infradead.org>, <netdev@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        "Jakub Kicinski" <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Emil Renner Berthing <kernel@...il.dk>,
        Richard Cochran <richardcochran@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Peter Geis <pgwipeout@...il.com>
Subject: Re: [PATCH v1 7/7] riscv: dts: starfive: visionfive-v2: Add phy
 delay_chain configuration



On 2022/12/2 3:30, Conor Dooley wrote:
> On Thu, Dec 01, 2022 at 05:49:08PM +0000, Conor Dooley wrote:
>> On Thu, Dec 01, 2022 at 05:02:42PM +0800, Yanhong Wang wrote:
>> > riscv: dts: starfive: visionfive-v2: Add phy delay_chain configuration
>> > 
>> > Add phy delay_chain configuration to support motorcomm phy driver for
>> > StarFive VisionFive 2 board.
> 
> nit: please re-word this commit next time around to actually say what
> you're doing here. I didn't notice it initially, but this patch is doing
> a lot more than adding `delay_chain` configuration. To my dwmac unaware
> brain, there's nothing hits for that term outside of the changelog :(
> 

I will re-word the commit message and add another dt-binding to describe the details that such as "rxc_dly_en","tx_inverted_10" etc.

> Thanks,
> Conor.
> 
>> > 
>> > Signed-off-by: Yanhong Wang <yanhong.wang@...rfivetech.com>
>> > ---
>> >  .../jh7110-starfive-visionfive-v2.dts         | 46 +++++++++++++++++++
>> >  1 file changed, 46 insertions(+)
>> > 
>> > diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-v2.dts b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-v2.dts
>> > index c8946cf3a268..2868ef4c74ef 100644
>> > --- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-v2.dts
>> > +++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-v2.dts
>> > @@ -15,6 +15,8 @@
>> >  
>> >  	aliases {
>> >  		serial0 = &uart0;
>> > +		ethernet0=&gmac0;
>> > +		ethernet1=&gmac1;
>> 
>> Please match the whitespace usage of the existing entry.
>> 
>> >  	};
>> >  
>> >  	chosen {
>> > @@ -114,3 +116,47 @@
>> >  	pinctrl-0 = <&uart0_pins>;
>> >  	status = "okay";
>> >  };
>> > +
>> > +&gmac0 {
>> > +	status = "okay";
>> > +	#address-cells = <1>;
>> > +	#size-cells = <0>;
>> > +	phy-handle = <&phy0>;
>> > +	status = "okay";
>> > +	mdio0 {
>> 
>> A line of whitespace before the child nodes too please :)
>> 
>> > +		#address-cells = <1>;
>> > +		#size-cells = <0>;
>> > +		compatible = "snps,dwmac-mdio";
>> > +		phy0: ethernet-phy@0 {
>> > +			reg = <0>;
>> > +			rxc_dly_en = <1>;
>> > +			tx_delay_sel_fe = <5>;
>> > +			tx_delay_sel = <0xa>;
>> > +			tx_inverted_10 = <0x1>;
>> > +			tx_inverted_100 = <0x1>;
>> > +			tx_inverted_1000 = <0x1>;
>> > +		};
>> > +	};
>> > +};
>> > +
>> > +&gmac1 {
>> > +	status = "okay";
>> > +	#address-cells = <1>;
>> > +	#size-cells = <0>;
>> > +	phy-handle = <&phy1>;
>> > +	status = "okay";
>> > +	mdio1 {
>> > +		#address-cells = <1>;
>> > +		#size-cells = <0>;
>> > +		compatible = "snps,dwmac-mdio";
>> > +		phy1: ethernet-phy@1 {
>> > +			reg = <1>;
>> > +			tx_delay_sel_fe = <5>;
>> > +			tx_delay_sel = <0>;
>> > +			rxc_dly_en = <0>;
>> > +			tx_inverted_10 = <0x1>;
>> > +			tx_inverted_100 = <0x1>;
>> > +			tx_inverted_1000 = <0x0>;
>> > +		};
>> > +	};
>> > +};
>> > -- 
>> > 2.17.1
>> > 

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