Add all ethernet device nodes for K3 SoC. Signed-off-by: Inochi Amaoto --- Require the following patch series: 1. Basic DT device patch https://lore.kernel.org/spacemit/20260304-01-dts-uart-full-v1-0-50a0aa53a245@kernel.org 2. Ethernet driver patch https://lore.kernel.org/spacemit/20260316010041.164360-1-inochiama@gmail.com Changed from v5: 1. Fix DT warning cause by stmmac-axi-config. Changed from v4: 1. Fix pinctrl pin name 2. Remove alias for disabled node Changed from v3: 1. Separate the pin as RGMII pin and INT pin. 2. Add comment for pin usage. 3. Rename the ethernet pinctrl node to address it is RGMII node. Changed from v2: 1. keep aliases in alphabetical order. Changed from v1: 1. remove interrupt-parents property 2. add aliases for ethernet node --- arch/riscv/boot/dts/spacemit/k3-pico-itx.dts | 20 ++++ arch/riscv/boot/dts/spacemit/k3-pinctrl.dtsi | 34 ++++++ arch/riscv/boot/dts/spacemit/k3.dtsi | 117 +++++++++++++++++++ 3 files changed, 171 insertions(+) diff --git a/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts b/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts index b098dbd0e7a1..504fe6bd46b2 100644 --- a/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts +++ b/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts @@ -3,6 +3,7 @@ * Copyright (c) 2026 SpacemiT (Hangzhou) Technology Co. Ltd * Copyright (c) 2026 Guodong Xu */ +#include #include "k3.dtsi" #include "k3-pinctrl.dtsi" @@ -12,6 +13,7 @@ / { compatible = "spacemit,k3-pico-itx", "spacemit,k3"; aliases { + ethernet0 = ð0; serial0 = &uart0; }; @@ -25,6 +27,24 @@ memory@100000000 { }; }; +ð0 { + 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>; diff --git a/arch/riscv/boot/dts/spacemit/k3-pinctrl.dtsi b/arch/riscv/boot/dts/spacemit/k3-pinctrl.dtsi index efb0f1572188..a7b5d10c332e 100644 --- a/arch/riscv/boot/dts/spacemit/k3-pinctrl.dtsi +++ b/arch/riscv/boot/dts/spacemit/k3-pinctrl.dtsi @@ -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 = , /* gmac0_rxdv */ + , /* gmac0_rx_d0 */ + , /* gmac0_rx_d1 */ + , /* gmac0_rx_clk */ + , /* gmac0_rx_d2 */ + , /* gmac0_rx_d3 */ + , /* gmac0_tx_d0 */ + , /* gmac0_tx_d1 */ + , /* gmac0_tx_clk */ + , /* gmac0_tx_d2 */ + , /* gmac0_tx_d3 */ + , /* gmac0_tx_en */ + , /* gmac0_mdc */ + ; /* gmac0_mdio */ + + bias-disable; + drive-strength = <25>; + power-source = <1800>; + }; + + }; + + gmac0_phy_0_cfg: gmac0-phy-0-cfg { + gmac0-phy-0-pins { + pinmux = ; /* gmac0_int */ + + bias-disable; + drive-strength = <25>; + power-source = <1800>; + }; + }; + /omit-if-no-ref/ uart0_0_cfg: uart0-0-cfg { uart0-0-pins { diff --git a/arch/riscv/boot/dts/spacemit/k3.dtsi b/arch/riscv/boot/dts/spacemit/k3.dtsi index a3a8ceddabec..5f4818cd5d6d 100644 --- a/arch/riscv/boot/dts/spacemit/k3.dtsi +++ b/arch/riscv/boot/dts/spacemit/k3.dtsi @@ -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>; -- 2.53.0