riscv: dts: th1520: Describe GMACs and enable them on Lichee Pi 4A

TH1520 SoC ships two MAC controllers based on Designware Ethernet IP
that are capable of Gigabit operation. Describe them in SoC devicetree
and enable them for Lichee Pi 4A.

Signed-off-by: Yao Zi <[email protected]>
Acked-by: Leo Yu-Chi Liang <[email protected]>

2 files changed, 161 insertions, 0 deletions

diff --git a/arch/riscv/dts/th1520-lichee-module-4a.dtsi b/arch/riscv/dts/th1520-lichee-module-4a.dtsi
index 9b255f8243c..eecd3e9832a 100644
--- a/arch/riscv/dts/th1520-lichee-module-4a.dtsi
+++ b/arch/riscv/dts/th1520-lichee-module-4a.dtsi
@@ -11,6 +11,11 @@
 	model = "Sipeed Lichee Module 4A";
 	compatible = "sipeed,lichee-module-4a", "thead,th1520";
 
+	aliases {
+		ethernet0 = &gmac0;
+		ethernet1 = &gmac1;
+	};
+
 	memory@0 {
 		device_type = "memory";
 		reg = <0x0 0x00000000 0x2 0x00000000>;
@@ -38,6 +43,120 @@
 	status = "okay";
 };
 
+&gmac0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&gmac0_pins>, <&mdio0_pins>;
+	phy-handle = <&phy0>;
+	phy-mode = "rgmii-id";
+	status = "okay";
+};
+
+&gmac1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&gmac1_pins>;
+	phy-handle = <&phy1>;
+	phy-mode = "rgmii-id";
+	status = "okay";
+};
+
+&mdio0 {
+	phy0: ethernet-phy@1 {
+		reg = <1>;
+	};
+
+	phy1: ethernet-phy@2 {
+		reg = <2>;
+	};
+};
+
+&padctrl0_apsys {
+	gmac0_pins: gmac0-0 {
+		tx-pins {
+			pins = "GMAC0_TX_CLK",
+			       "GMAC0_TXEN",
+			       "GMAC0_TXD0",
+			       "GMAC0_TXD1",
+			       "GMAC0_TXD2",
+			       "GMAC0_TXD3";
+			function = "gmac0";
+			bias-disable;
+			drive-strength = <25>;
+			input-disable;
+			input-schmitt-disable;
+			slew-rate = <0>;
+		};
+
+		rx-pins {
+			pins = "GMAC0_RX_CLK",
+			       "GMAC0_RXDV",
+			       "GMAC0_RXD0",
+			       "GMAC0_RXD1",
+			       "GMAC0_RXD2",
+			       "GMAC0_RXD3";
+			function = "gmac0";
+			bias-disable;
+			drive-strength = <1>;
+			input-enable;
+			input-schmitt-disable;
+			slew-rate = <0>;
+		};
+	};
+
+	gmac1_pins: gmac1-0 {
+		tx-pins {
+			pins = "GPIO2_18", /* GMAC1_TX_CLK */
+			       "GPIO2_20", /* GMAC1_TXEN */
+			       "GPIO2_21", /* GMAC1_TXD0 */
+			       "GPIO2_22", /* GMAC1_TXD1 */
+			       "GPIO2_23", /* GMAC1_TXD2 */
+			       "GPIO2_24"; /* GMAC1_TXD3 */
+			function = "gmac1";
+			bias-disable;
+			drive-strength = <25>;
+			input-disable;
+			input-schmitt-disable;
+			slew-rate = <0>;
+		};
+
+		rx-pins {
+			pins = "GPIO2_19", /* GMAC1_RX_CLK */
+			       "GPIO2_25", /* GMAC1_RXDV */
+			       "GPIO2_30", /* GMAC1_RXD0 */
+			       "GPIO2_31", /* GMAC1_RXD1 */
+			       "GPIO3_0",  /* GMAC1_RXD2 */
+			       "GPIO3_1";  /* GMAC1_RXD3 */
+			function = "gmac1";
+			bias-disable;
+			drive-strength = <1>;
+			input-enable;
+			input-schmitt-disable;
+			slew-rate = <0>;
+		};
+	};
+
+	mdio0_pins: mdio0-0 {
+		mdc-pins {
+			pins = "GMAC0_MDC";
+			function = "gmac0";
+			bias-disable;
+			drive-strength = <13>;
+			input-disable;
+			input-schmitt-disable;
+			slew-rate = <0>;
+		};
+
+		mdio-pins {
+			pins = "GMAC0_MDIO";
+			function = "gmac0";
+			bias-disable;
+			drive-strength = <13>;
+			input-enable;
+			input-schmitt-enable;
+			slew-rate = <0>;
+		};
+	};
+};
+
 &sdio0 {
 	bus-width = <4>;
 	max-frequency = <198000000>;
diff --git a/arch/riscv/dts/th1520.dtsi b/arch/riscv/dts/th1520.dtsi
index 8306eda5521..c46925a132a 100644
--- a/arch/riscv/dts/th1520.dtsi
+++ b/arch/riscv/dts/th1520.dtsi
@@ -177,6 +177,48 @@
 			status = "disabled";
 		};
 
+		gmac1: ethernet@ffe7060000 {
+			compatible = "thead,th1520-gmac", "snps,dwmac-3.70a";
+			reg = <0xff 0xe7060000 0x0 0x2000>, <0xff 0xec004000 0x0 0x1000>;
+			reg-names = "dwmac", "apb";
+			interrupts = <67 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "macirq";
+			clocks = <&clk CLK_GMAC_AXI>, <&clk CLK_GMAC1>;
+			clock-names = "stmmaceth", "pclk";
+			snps,pbl = <32>;
+			snps,fixed-burst;
+			snps,multicast-filter-bins = <64>;
+			snps,perfect-filter-entries = <32>;
+			status = "disabled";
+
+			mdio1: mdio {
+				compatible = "snps,dwmac-mdio";
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+		};
+
+		gmac0: ethernet@ffe7070000 {
+			compatible = "thead,th1520-gmac", "snps,dwmac-3.70a";
+			reg = <0xff 0xe7070000 0x0 0x2000>, <0xff 0xec003000 0x0 0x1000>;
+			reg-names = "dwmac", "apb";
+			interrupts = <66 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "macirq";
+			clocks = <&clk CLK_GMAC_AXI>, <&clk CLK_GMAC0>;
+			clock-names = "stmmaceth", "pclk";
+			snps,pbl = <32>;
+			snps,fixed-burst;
+			snps,multicast-filter-bins = <64>;
+			snps,perfect-filter-entries = <32>;
+			status = "disabled";
+
+			mdio0: mdio {
+				compatible = "snps,dwmac-mdio";
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+		};
+
 		emmc: mmc@ffe7080000 {
 			compatible = "thead,th1520-dwcmshc";
 			reg = <0xff 0xe7080000 0x0 0x10000>;