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Date:   Fri, 2 Dec 2022 13:53:17 +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 6/7] riscv: dts: starfive: jh7110: Add ethernet device
 node



On 2022/12/2 1:45, Conor Dooley wrote:
> On Thu, Dec 01, 2022 at 05:02:41PM +0800, Yanhong Wang wrote:
>> Add JH7110 ethernet device node to support gmac driver for the JH7110
>> RISC-V SoC.
>> 
>> Signed-off-by: Yanhong Wang <yanhong.wang@...rfivetech.com>
>> ---
>>  arch/riscv/boot/dts/starfive/jh7110.dtsi | 80 ++++++++++++++++++++++++
>>  1 file changed, 80 insertions(+)
>> 
>> diff --git a/arch/riscv/boot/dts/starfive/jh7110.dtsi b/arch/riscv/boot/dts/starfive/jh7110.dtsi
>> index c22e8f1d2640..97ed5418d91f 100644
>> --- a/arch/riscv/boot/dts/starfive/jh7110.dtsi
>> +++ b/arch/riscv/boot/dts/starfive/jh7110.dtsi
>> @@ -433,5 +433,85 @@
>>  			reg-shift = <2>;
>>  			status = "disabled";
>>  		};
>> +
>> +		stmmac_axi_setup: stmmac-axi-config {
>> +			snps,wr_osr_lmt = <4>;
>> +			snps,rd_osr_lmt = <4>;
>> +			snps,blen = <256 128 64 32 0 0 0>;
>> +		};
>> +
>> +		gmac0: ethernet@...30000 {
>> +			compatible = "starfive,dwmac", "snps,dwmac-5.20";
>> +			reg = <0x0 0x16030000 0x0 0x10000>;
>> +			clocks = <&aoncrg JH7110_AONCLK_GMAC0_AXI>,
>> +				 <&aoncrg JH7110_AONCLK_GMAC0_AHB>,
>> +				 <&syscrg JH7110_SYSCLK_GMAC0_PTP>,
>> +				 <&aoncrg JH7110_AONCLK_GMAC0_TX>,
>> +				 <&syscrg JH7110_SYSCLK_GMAC0_GTXC>,
>> +				 <&syscrg JH7110_SYSCLK_GMAC0_GTXCLK>;
>> +			clock-names = "stmmaceth",
>> +					"pclk",
>> +					"ptp_ref",
>> +					"tx",
>> +					"gtxc",
>> +					"gtx";
> 
> Can you sort this into fewer lines please?

Will sort in the next version.

> 
>> +			resets = <&aoncrg JH7110_AONRST_GMAC0_AXI>,
>> +				 <&aoncrg JH7110_AONRST_GMAC0_AHB>;
>> +			reset-names = "stmmaceth", "ahb";
>> +			interrupts = <7>, <6>, <5> ;
> 
> Please also remove the space before the ;

Will remove the space.

> 
>> +			interrupt-names = "macirq", "eth_wake_irq", "eth_lpi";
> 
> The answer is probably "the dw driver needs this" but my OCD really
> hates "macirq" vs "eth_wake_irq"..

The definition of  "macirq" and "eth_wake_irq"  is to reuse stmmac_get_platform_resources() API. 

> 
>> +			phy-mode = "rgmii-id";
>> +			snps,multicast-filter-bins = <64>;
>> +			snps,perfect-filter-entries = <8>;
>> +			rx-fifo-depth = <2048>;
>> +			tx-fifo-depth = <2048>;
>> +			snps,fixed-burst;
>> +			snps,no-pbl-x8;
>> +			snps,force_thresh_dma_mode;
>> +			snps,axi-config = <&stmmac_axi_setup>;
>> +			snps,tso;
>> +			snps,en-tx-lpi-clockgating;
>> +			snps,lpi_en;
>> +			snps,txpbl = <16>;
>> +			snps,rxpbl = <16>;
>> +			status = "disabled";
>> +		};
>> +
>> +		gmac1: ethernet@...40000 {
>> +			compatible = "starfive,dwmac", "snps,dwmac-5.20";
>> +			reg = <0x0 0x16040000 0x0 0x10000>;
>> +			clocks = <&syscrg JH7110_SYSCLK_GMAC1_AXI>,
>> +				 <&syscrg JH7110_SYSCLK_GMAC1_AHB>,
>> +				 <&syscrg JH7110_SYSCLK_GMAC1_PTP>,
>> +				 <&syscrg JH7110_SYSCLK_GMAC1_TX>,
>> +				 <&syscrg JH7110_SYSCLK_GMAC1_GTXC>,
>> +				 <&syscrg JH7110_SYSCLK_GMAC1_GTXCLK>;
>> +			clock-names = "stmmaceth",
>> +					"pclk",
>> +					"ptp_ref",
>> +					"tx",
>> +					"gtxc",
>> +					"gtx";
>> +			resets = <&syscrg JH7110_SYSRST_GMAC1_AXI>,
>> +				 <&syscrg JH7110_SYSRST_GMAC1_AHB>;
>> +			reset-names = "stmmaceth", "ahb";
>> +			interrupts = <78>, <77>, <76> ;
> 
> Same comments for this node.

Will remove the space.

> 
>> +			interrupt-names = "macirq", "eth_wake_irq", "eth_lpi";
>> +			phy-mode = "rgmii-id";
>> +			snps,multicast-filter-bins = <64>;
>> +			snps,perfect-filter-entries = <8>;
>> +			rx-fifo-depth = <2048>;
>> +			tx-fifo-depth = <2048>;
>> +			snps,fixed-burst;
>> +			snps,no-pbl-x8;
>> +			snps,force_thresh_dma_mode;
>> +			snps,axi-config = <&stmmac_axi_setup>;
>> +			snps,tso;
>> +			snps,en-tx-lpi-clockgating;
>> +			snps,lpi_en;
>> +			snps,txpbl = <16>;
>> +			snps,rxpbl = <16>;
>> +			status = "disabled";
>> +		};
>>  	};
>>  };
>> -- 
>> 2.17.1
>> 

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