Commit 74657a37 authored by Inochi Amaoto's avatar Inochi Amaoto Committed by Yixun Lan
Browse files

riscv: dts: spacemit: Add ethernet device for K3 



Add all ethernet device nodes for K3 SoC.

Signed-off-by: default avatarInochi Amaoto <inochiama@gmail.com>
Reviewed-by: default avatarYixun Lan <dlan@kernel.org>
Link: https://lore.kernel.org/r/20260326014617.1011732-1-inochiama@gmail.com


Signed-off-by: default avatarYixun Lan <dlan@kernel.org>
parent c68360c0

arch/riscv/boot/dts/spacemit/k3-pico-itx.dts

+20 −0
Original line number Diff line number Diff line
@@ -3,6 +3,7 @@ 
 * Copyright (c) 2026 SpacemiT (Hangzhou) Technology Co. Ltd

 * Copyright (c) 2026 Guodong Xu <guodong@riscstar.com>

 */

#include <dt-bindings/gpio/gpio.h>



#include "k3.dtsi"

#include "k3-pinctrl.dtsi"
@@ -12,6 +13,7 @@ / { 
	compatible = "spacemit,k3-pico-itx", "spacemit,k3";



	aliases {

		ethernet0 = &eth0;

		serial0 = &uart0;

	};
@@ -25,6 +27,24 @@ memory@100000000 { 
	};

};



&eth0 {

	pinctrl-names = "default";

	pinctrl-0 = <&gmac0_rgmii_0_cfg>, <&gmac0_phy_0_cfg>;

	phy-mode = "rgmii-id";

	phy-handle = <&phy0>;

	status = "okay";



	mdio {

		phy0: phy@1 {

			compatible = "ethernet-phy-ieee802.3-c22";

			reg = <1>;

			reset-gpios = <&gpio 0 15 GPIO_ACTIVE_LOW>;

			reset-assert-us = <10000>;

			reset-deassert-us = <10000>;

		};

	};

};



&uart0 {

	pinctrl-names = "default";

	pinctrl-0 = <&uart0_0_cfg>;

arch/riscv/boot/dts/spacemit/k3-pinctrl.dtsi

+34 −0
Original line number Diff line number Diff line
@@ -11,6 +11,40 @@ 
#define K3_GPIO(x)	(x / 32) (x % 32)



&pinctrl {

	gmac0_rgmii_0_cfg: gmac0-rgmii-0-cfg {

		gmac0-rgmii-0-pins {

			pinmux = <K3_PADCONF(0, 1)>,	/* gmac0_rxdv */

				 <K3_PADCONF(1, 1)>,	/* gmac0_rx_d0 */

				 <K3_PADCONF(2, 1)>,	/* gmac0_rx_d1 */

				 <K3_PADCONF(3, 1)>,	/* gmac0_rx_clk */

				 <K3_PADCONF(4, 1)>,	/* gmac0_rx_d2 */

				 <K3_PADCONF(5, 1)>,	/* gmac0_rx_d3 */

				 <K3_PADCONF(6, 1)>,	/* gmac0_tx_d0 */

				 <K3_PADCONF(7, 1)>,	/* gmac0_tx_d1 */

				 <K3_PADCONF(8, 1)>,	/* gmac0_tx_clk */

				 <K3_PADCONF(9, 1)>,	/* gmac0_tx_d2 */

				 <K3_PADCONF(10, 1)>,	/* gmac0_tx_d3 */

				 <K3_PADCONF(11, 1)>,	/* gmac0_tx_en */

				 <K3_PADCONF(12, 1)>,	/* gmac0_mdc */

				 <K3_PADCONF(13, 1)>;	/* gmac0_mdio */



			bias-disable;

			drive-strength = <25>;

			power-source = <1800>;

		};



	};



	gmac0_phy_0_cfg: gmac0-phy-0-cfg {

		gmac0-phy-0-pins {

			pinmux = <K3_PADCONF(14, 1)>;   /* gmac0_int */



			bias-disable;

			drive-strength = <25>;

			power-source = <1800>;

		};

	};



	/omit-if-no-ref/

	uart0_0_cfg: uart0-0-cfg {

		uart0-0-pins {

arch/riscv/boot/dts/spacemit/k3.dtsi

+117 −0
Original line number Diff line number Diff line
@@ -438,6 +438,123 @@ soc: soc { 
		dma-noncoherent;

		ranges;



		eth0: ethernet@cac80000 {

			compatible = "spacemit,k3-dwmac", "snps,dwmac-5.40a";

			reg = <0x0 0xcac80000 0x0 0x2000>;

			clocks = <&syscon_apmu CLK_APMU_EMAC0_BUS>,

				 <&syscon_apmu CLK_APMU_EMAC0_1588>,

				 <&syscon_apmu CLK_APMU_EMAC0_RGMII_TX>;

			clock-names = "stmmaceth", "ptp_ref", "tx";

			interrupts = <131 IRQ_TYPE_LEVEL_HIGH>,

				     <276 IRQ_TYPE_LEVEL_HIGH>;

			interrupt-names = "macirq", "eth_wake_irq";

			resets = <&syscon_apmu RESET_APMU_EMAC0>;

			reset-names = "stmmaceth";

			rx-fifo-depth = <8192>;

			tx-fifo-depth = <8192>;

			snps,multicast-filter-bins = <64>;

			snps,perfect-filter-entries = <32>;

			snps,aal;

			snps,tso;

			snps,txpbl = <8>;

			snps,rxpbl = <8>;

			snps,force_sf_dma_mode;

			snps,axi-config = <&gmac0_axi_setup>;

			spacemit,apmu = <&syscon_apmu 0x3e4 0x3e8>;

			status = "disabled";



			mdio {

				compatible = "snps,dwmac-mdio";

				#address-cells = <1>;

				#size-cells = <0>;

			};



			gmac0_axi_setup: stmmac-axi-config {

				snps,wr_osr_lmt = <0xf>;

				snps,rd_osr_lmt = <0xf>;

				/* max axi burst len is 256 */

				snps,blen = <256 128 64 32 16 0 0>;

			};

		};



		eth1: ethernet@cac82000 {

			compatible = "spacemit,k3-dwmac", "snps,dwmac-5.40a";

			reg = <0x0 0xcac82000 0x0 0x2000>;

			clocks = <&syscon_apmu CLK_APMU_EMAC1_BUS>,

				 <&syscon_apmu CLK_APMU_EMAC1_1588>,

				 <&syscon_apmu CLK_APMU_EMAC1_RGMII_TX>;

			clock-names = "stmmaceth", "ptp_ref", "tx";

			interrupts = <133 IRQ_TYPE_LEVEL_HIGH>,

				     <277 IRQ_TYPE_LEVEL_HIGH>;

			interrupt-names = "macirq", "eth_wake_irq";

			resets = <&syscon_apmu RESET_APMU_EMAC1>;

			reset-names = "stmmaceth";

			rx-fifo-depth = <8192>;

			tx-fifo-depth = <8192>;

			snps,multicast-filter-bins = <64>;

			snps,perfect-filter-entries = <32>;

			snps,aal;

			snps,tso;

			snps,txpbl = <8>;

			snps,rxpbl = <8>;

			snps,force_sf_dma_mode;

			snps,axi-config = <&gmac1_axi_setup>;

			spacemit,apmu = <&syscon_apmu 0x3ec 0x3f0>;

			status = "disabled";



			mdio {

				compatible = "snps,dwmac-mdio";

				#address-cells = <1>;

				#size-cells = <0>;

			};



			gmac1_axi_setup: stmmac-axi-config {

				snps,wr_osr_lmt = <0xf>;

				snps,rd_osr_lmt = <0xf>;

				/* max axi burst len is 256 */

				snps,blen = <256 128 64 32 16 0 0>;

			};

		};



		eth2: ethernet@cac8e000 {

			compatible = "spacemit,k3-dwmac", "snps,dwmac-5.40a";

			reg = <0x0 0xcac8e000 0x0 0x2000>;

			clocks = <&syscon_apmu CLK_APMU_EMAC2_BUS>,

				 <&syscon_apmu CLK_APMU_EMAC2_1588>,

				 <&syscon_apmu CLK_APMU_EMAC2_RGMII_TX>;

			clock-names = "stmmaceth", "ptp_ref", "tx";

			interrupts = <130 IRQ_TYPE_LEVEL_HIGH>,

				     <278 IRQ_TYPE_LEVEL_HIGH>;

			interrupt-names = "macirq", "eth_wake_irq";

			resets = <&syscon_apmu RESET_APMU_EMAC2>;

			reset-names = "stmmaceth";

			rx-fifo-depth = <4096>;

			tx-fifo-depth = <4096>;

			snps,multicast-filter-bins = <64>;

			snps,perfect-filter-entries = <32>;

			snps,aal;

			snps,tso;

			snps,txpbl = <8>;

			snps,rxpbl = <8>;

			snps,force_sf_dma_mode;

			snps,axi-config = <&gmac2_axi_setup>;

			spacemit,apmu = <&syscon_apmu 0x248 0x24c>;

			status = "disabled";



			mdio {

				compatible = "snps,dwmac-mdio";

				#address-cells = <1>;

				#size-cells = <0>;

			};



			gmac2_axi_setup: stmmac-axi-config {

				snps,wr_osr_lmt = <0xf>;

				snps,rd_osr_lmt = <0xf>;

				/* max axi burst len is 256 */

				snps,blen = <256 128 64 32 16 0 0>;

			};

		};



		syscon_apbc: system-controller@d4015000 {

			compatible = "spacemit,k3-syscon-apbc";

			reg = <0x0 0xd4015000 0x0 0x1000>;