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inochisaYixun Lan
inochisa
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Yixun Lan
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riscv: dts: spacemit: Add ethernet device for K3
Add all ethernet device nodes for K3 SoC. Signed-off-by: Inochi Amaoto <inochiama@gmail.com> Reviewed-by: Yixun Lan <dlan@kernel.org> Link: https://lore.kernel.org/r/20260326014617.1011732-1-inochiama@gmail.com Signed-off-by: Yixun Lan <dlan@kernel.org>
1 parent c68360c commit 74657a3

3 files changed

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

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@@ -3,6 +3,7 @@
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* Copyright (c) 2026 SpacemiT (Hangzhou) Technology Co. Ltd
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* Copyright (c) 2026 Guodong Xu <guodong@riscstar.com>
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*/
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#include <dt-bindings/gpio/gpio.h>
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#include "k3.dtsi"
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#include "k3-pinctrl.dtsi"
@@ -12,6 +13,7 @@
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compatible = "spacemit,k3-pico-itx", "spacemit,k3";
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aliases {
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ethernet0 = &eth0;
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serial0 = &uart0;
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};
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@@ -25,6 +27,24 @@
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};
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};
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&eth0 {
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pinctrl-names = "default";
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pinctrl-0 = <&gmac0_rgmii_0_cfg>, <&gmac0_phy_0_cfg>;
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phy-mode = "rgmii-id";
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phy-handle = <&phy0>;
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status = "okay";
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mdio {
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phy0: phy@1 {
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compatible = "ethernet-phy-ieee802.3-c22";
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reg = <1>;
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reset-gpios = <&gpio 0 15 GPIO_ACTIVE_LOW>;
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reset-assert-us = <10000>;
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reset-deassert-us = <10000>;
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};
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};
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};
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&uart0 {
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pinctrl-names = "default";
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pinctrl-0 = <&uart0_0_cfg>;

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

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@@ -11,6 +11,40 @@
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#define K3_GPIO(x) (x / 32) (x % 32)
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&pinctrl {
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gmac0_rgmii_0_cfg: gmac0-rgmii-0-cfg {
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gmac0-rgmii-0-pins {
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pinmux = <K3_PADCONF(0, 1)>, /* gmac0_rxdv */
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<K3_PADCONF(1, 1)>, /* gmac0_rx_d0 */
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<K3_PADCONF(2, 1)>, /* gmac0_rx_d1 */
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<K3_PADCONF(3, 1)>, /* gmac0_rx_clk */
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<K3_PADCONF(4, 1)>, /* gmac0_rx_d2 */
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<K3_PADCONF(5, 1)>, /* gmac0_rx_d3 */
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<K3_PADCONF(6, 1)>, /* gmac0_tx_d0 */
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<K3_PADCONF(7, 1)>, /* gmac0_tx_d1 */
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<K3_PADCONF(8, 1)>, /* gmac0_tx_clk */
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<K3_PADCONF(9, 1)>, /* gmac0_tx_d2 */
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<K3_PADCONF(10, 1)>, /* gmac0_tx_d3 */
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<K3_PADCONF(11, 1)>, /* gmac0_tx_en */
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<K3_PADCONF(12, 1)>, /* gmac0_mdc */
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<K3_PADCONF(13, 1)>; /* gmac0_mdio */
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bias-disable;
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drive-strength = <25>;
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power-source = <1800>;
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};
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};
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gmac0_phy_0_cfg: gmac0-phy-0-cfg {
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gmac0-phy-0-pins {
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pinmux = <K3_PADCONF(14, 1)>; /* gmac0_int */
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bias-disable;
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drive-strength = <25>;
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power-source = <1800>;
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};
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};
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/omit-if-no-ref/
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uart0_0_cfg: uart0-0-cfg {
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uart0-0-pins {

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

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@@ -438,6 +438,123 @@
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dma-noncoherent;
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ranges;
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eth0: ethernet@cac80000 {
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compatible = "spacemit,k3-dwmac", "snps,dwmac-5.40a";
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reg = <0x0 0xcac80000 0x0 0x2000>;
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clocks = <&syscon_apmu CLK_APMU_EMAC0_BUS>,
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<&syscon_apmu CLK_APMU_EMAC0_1588>,
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<&syscon_apmu CLK_APMU_EMAC0_RGMII_TX>;
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clock-names = "stmmaceth", "ptp_ref", "tx";
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interrupts = <131 IRQ_TYPE_LEVEL_HIGH>,
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<276 IRQ_TYPE_LEVEL_HIGH>;
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interrupt-names = "macirq", "eth_wake_irq";
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resets = <&syscon_apmu RESET_APMU_EMAC0>;
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reset-names = "stmmaceth";
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rx-fifo-depth = <8192>;
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tx-fifo-depth = <8192>;
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snps,multicast-filter-bins = <64>;
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snps,perfect-filter-entries = <32>;
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snps,aal;
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snps,tso;
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snps,txpbl = <8>;
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snps,rxpbl = <8>;
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snps,force_sf_dma_mode;
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snps,axi-config = <&gmac0_axi_setup>;
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spacemit,apmu = <&syscon_apmu 0x3e4 0x3e8>;
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status = "disabled";
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mdio {
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compatible = "snps,dwmac-mdio";
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#address-cells = <1>;
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#size-cells = <0>;
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};
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gmac0_axi_setup: stmmac-axi-config {
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snps,wr_osr_lmt = <0xf>;
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snps,rd_osr_lmt = <0xf>;
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/* max axi burst len is 256 */
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snps,blen = <256 128 64 32 16 0 0>;
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};
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};
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eth1: ethernet@cac82000 {
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compatible = "spacemit,k3-dwmac", "snps,dwmac-5.40a";
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reg = <0x0 0xcac82000 0x0 0x2000>;
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clocks = <&syscon_apmu CLK_APMU_EMAC1_BUS>,
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<&syscon_apmu CLK_APMU_EMAC1_1588>,
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<&syscon_apmu CLK_APMU_EMAC1_RGMII_TX>;
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clock-names = "stmmaceth", "ptp_ref", "tx";
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interrupts = <133 IRQ_TYPE_LEVEL_HIGH>,
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<277 IRQ_TYPE_LEVEL_HIGH>;
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interrupt-names = "macirq", "eth_wake_irq";
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resets = <&syscon_apmu RESET_APMU_EMAC1>;
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reset-names = "stmmaceth";
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rx-fifo-depth = <8192>;
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tx-fifo-depth = <8192>;
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snps,multicast-filter-bins = <64>;
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snps,perfect-filter-entries = <32>;
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snps,aal;
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snps,tso;
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snps,txpbl = <8>;
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snps,rxpbl = <8>;
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snps,force_sf_dma_mode;
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snps,axi-config = <&gmac1_axi_setup>;
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spacemit,apmu = <&syscon_apmu 0x3ec 0x3f0>;
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status = "disabled";
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mdio {
506+
compatible = "snps,dwmac-mdio";
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#address-cells = <1>;
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#size-cells = <0>;
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};
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511+
gmac1_axi_setup: stmmac-axi-config {
512+
snps,wr_osr_lmt = <0xf>;
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snps,rd_osr_lmt = <0xf>;
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/* max axi burst len is 256 */
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snps,blen = <256 128 64 32 16 0 0>;
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};
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};
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eth2: ethernet@cac8e000 {
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compatible = "spacemit,k3-dwmac", "snps,dwmac-5.40a";
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reg = <0x0 0xcac8e000 0x0 0x2000>;
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clocks = <&syscon_apmu CLK_APMU_EMAC2_BUS>,
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<&syscon_apmu CLK_APMU_EMAC2_1588>,
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<&syscon_apmu CLK_APMU_EMAC2_RGMII_TX>;
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clock-names = "stmmaceth", "ptp_ref", "tx";
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interrupts = <130 IRQ_TYPE_LEVEL_HIGH>,
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<278 IRQ_TYPE_LEVEL_HIGH>;
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interrupt-names = "macirq", "eth_wake_irq";
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resets = <&syscon_apmu RESET_APMU_EMAC2>;
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reset-names = "stmmaceth";
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rx-fifo-depth = <4096>;
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tx-fifo-depth = <4096>;
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snps,multicast-filter-bins = <64>;
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snps,perfect-filter-entries = <32>;
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snps,aal;
536+
snps,tso;
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snps,txpbl = <8>;
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snps,rxpbl = <8>;
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snps,force_sf_dma_mode;
540+
snps,axi-config = <&gmac2_axi_setup>;
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spacemit,apmu = <&syscon_apmu 0x248 0x24c>;
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status = "disabled";
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544+
mdio {
545+
compatible = "snps,dwmac-mdio";
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#address-cells = <1>;
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#size-cells = <0>;
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};
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gmac2_axi_setup: stmmac-axi-config {
551+
snps,wr_osr_lmt = <0xf>;
552+
snps,rd_osr_lmt = <0xf>;
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/* max axi burst len is 256 */
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snps,blen = <256 128 64 32 16 0 0>;
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};
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};
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syscon_apbc: system-controller@d4015000 {
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compatible = "spacemit,k3-syscon-apbc";
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reg = <0x0 0xd4015000 0x0 0x1000>;

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