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Message-ID: <Y4joSiz0gKvyuecn@spud>
Date:   Thu, 1 Dec 2022 17:45:46 +0000
From:   Conor Dooley <conor@...nel.org>
To:     Yanhong Wang <yanhong.wang@...rfivetech.com>
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 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?

> +			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 ;

> +			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"..

> +			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.

> +			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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