linux-kernel - Re: [PATCH net-next v2 05/10] arm64: dts: allwinner: a523: Add GMAC200 ethernet controller

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Message-ID: <5030505.31r3eYUQgx@jernej-laptop>
Date: Wed, 13 Aug 2025 17:26:15 +0200
From: Jernej Škrabec <jernej.skrabec@...il.com>
To: Andrew Lunn <andrew+netdev@...n.ch>,
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
 Jernej Skrabec <jernej@...nel.org>, Samuel Holland <samuel@...lland.org>,
 Chen-Yu Tsai <wens@...nel.org>
Cc: netdev@...r.kernel.org, devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
 linux-kernel@...r.kernel.org, Andre Przywara <andre.przywara@....com>
Subject:
 Re: [PATCH net-next v2 05/10] arm64: dts: allwinner: a523: Add GMAC200
 ethernet controller

Dne sreda, 13. avgust 2025 ob 16:55:35 Srednjeevropski poletni čas je Chen-Yu Tsai napisal(a):
> From: Chen-Yu Tsai <wens@...e.org>
> 
> The A523 SoC family has a second ethernet controller, called the
> GMAC200. It is not exposed on all the SoCs in the family.
> 
> Add a device node for it. All the hardware specific settings are from
> the vendor BSP.
> 
> Signed-off-by: Chen-Yu Tsai <wens@...e.org>

Acked-by: Jernej Skrabec <jernej.skrabec@...il.com>

Best regards,
Jernej

> ---
> 
> Changes since v1:
> - Fixed typo in tx-queues-config
> ---
>  .../arm64/boot/dts/allwinner/sun55i-a523.dtsi | 55 +++++++++++++++++++
>  1 file changed, 55 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
> index 6b6f2296bdff..449bcafbddcd 100644
> --- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
> @@ -180,6 +180,16 @@ rgmii0_pins: rgmii0-pins {
>  				bias-disable;
>  			};
>  
> +			rgmii1_pins: rgmii1-pins {
> +				pins = "PJ0", "PJ1", "PJ2", "PJ3", "PJ4",
> +				       "PJ5", "PJ6", "PJ7", "PJ8", "PJ9",
> +				       "PJ11", "PJ12", "PJ13", "PJ14", "PJ15";
> +				allwinner,pinmux = <5>;
> +				function = "gmac1";
> +				drive-strength = <40>;
> +				bias-disable;
> +			};
> +
>  			uart0_pb_pins: uart0-pb-pins {
>  				pins = "PB9", "PB10";
>  				allwinner,pinmux = <2>;
> @@ -601,6 +611,51 @@ mdio0: mdio {
>  			};
>  		};
>  
> +		gmac1: ethernet@...0000 {
> +			compatible = "allwinner,sun55i-a523-gmac200",
> +				     "snps,dwmac-4.20a";
> +			reg = <0x04510000 0x10000>;
> +			clocks = <&ccu CLK_BUS_EMAC1>, <&ccu CLK_MBUS_EMAC1>;
> +			clock-names = "stmmaceth", "mbus";
> +			resets = <&ccu RST_BUS_EMAC1>;
> +			reset-names = "stmmaceth";
> +			interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
> +			interrupt-names = "macirq";
> +			pinctrl-names = "default";
> +			pinctrl-0 = <&rgmii1_pins>;
> +			power-domains = <&pck600 PD_VO1>;
> +			syscon = <&syscon>;
> +			snps,fixed-burst;
> +			snps,axi-config = <&gmac1_stmmac_axi_setup>;
> +			snps,mtl-rx-config = <&gmac1_mtl_rx_setup>;
> +			snps,mtl-tx-config = <&gmac1_mtl_tx_setup>;
> +			status = "disabled";
> +
> +			mdio1: mdio {
> +				compatible = "snps,dwmac-mdio";
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +			};
> +
> +			gmac1_mtl_rx_setup: rx-queues-config {
> +				snps,rx-queues-to-use = <1>;
> +
> +				queue0 {};
> +			};
> +
> +			gmac1_stmmac_axi_setup: stmmac-axi-config {
> +				snps,wr_osr_lmt = <0xf>;
> +				snps,rd_osr_lmt = <0xf>;
> +				snps,blen = <256 128 64 32 16 8 4>;
> +			};
> +
> +			gmac1_mtl_tx_setup: tx-queues-config {
> +				snps,tx-queues-to-use = <1>;
> +
> +				queue0 {};
> +			};
> +		};
> +
>  		ppu: power-controller@...1400 {
>  			compatible = "allwinner,sun55i-a523-ppu";
>  			reg = <0x07001400 0x400>;
>