[U-Boot] [PATCH 4/6] ARM: dts: stm32: Add Ethernet support on stm32mp1

[Christophe Roullier]

This patch add Ethernet support on stm32mp157 eval board

Signed-off-by: Christophe Roullier <christophe.roullier at st.com>
---

 arch/arm/dts/stm32mp157-pinctrl.dtsi | 31 +++++++++++++++++++++++++++++++
 arch/arm/dts/stm32mp157c-ev1.dts     | 21 +++++++++++++++++++++
 arch/arm/dts/stm32mp157c.dtsi        | 35 +++++++++++++++++++++++++++++++++++
 3 files changed, 87 insertions(+)

diff --git a/arch/arm/dts/stm32mp157-pinctrl.dtsi b/arch/arm/dts/stm32mp157-pinctrl.dtsi
index 85da592..66723b0 100644
--- a/arch/arm/dts/stm32mp157-pinctrl.dtsi
+++ b/arch/arm/dts/stm32mp157-pinctrl.dtsi
@@ -157,6 +157,37 @@
 				};
 			};
 
+			ethernet0_rgmii_pins_a: rgmii-0 {
+				pins1 {
+					pinmux = <STM32_PINMUX('G', 5, AF11)>, /* ETH_RGMII_CLK125 */
+						 <STM32_PINMUX('G', 4, AF11)>, /* ETH_RGMII_GTX_CLK */
+						 <STM32_PINMUX('G', 13, AF11)>, /* ETH_RGMII_TXD0 */
+						 <STM32_PINMUX('G', 14, AF11)>, /* ETH_RGMII_TXD1 */
+						 <STM32_PINMUX('C', 2, AF11)>, /* ETH_RGMII_TXD2 */
+						 <STM32_PINMUX('E', 2, AF11)>, /* ETH_RGMII_TXD3 */
+						 <STM32_PINMUX('B', 11, AF11)>, /* ETH_RGMII_TX_CTL */
+						 <STM32_PINMUX('C', 1, AF11)>; /* ETH_MDC */
+					bias-disable;
+					drive-push-pull;
+					slew-rate = <2>;
+				};
+				pins2 {
+					pinmux = <STM32_PINMUX('A', 2, AF11)>; /* ETH_MDIO */
+					bias-disable;
+					drive-push-pull;
+					slew-rate = <0>;
+				};
+				pins3 {
+					pinmux = <STM32_PINMUX('C', 4, AF11)>, /* ETH_RGMII_RXD0 */
+						 <STM32_PINMUX('C', 5, AF11)>, /* ETH_RGMII_RXD1 */
+						 <STM32_PINMUX('B', 0, AF11)>, /* ETH_RGMII_RXD2 */
+						 <STM32_PINMUX('B', 1, AF11)>, /* ETH_RGMII_RXD3 */
+						 <STM32_PINMUX('A', 1, AF11)>, /* ETH_RGMII_RX_CLK */
+						 <STM32_PINMUX('A', 7, AF11)>; /* ETH_RGMII_RX_CTL */
+					bias-disable;
+				};
+			};
+
 			i2c1_pins_a: i2c1-0 {
 				pins {
 					pinmux = <STM32_PINMUX('D', 12, AF5)>, /* I2C1_SCL */
diff --git a/arch/arm/dts/stm32mp157c-ev1.dts b/arch/arm/dts/stm32mp157c-ev1.dts
index 902a42b..bdbf7fb 100644
--- a/arch/arm/dts/stm32mp157c-ev1.dts
+++ b/arch/arm/dts/stm32mp157c-ev1.dts
@@ -11,6 +11,9 @@
 	model = "STMicroelectronics STM32MP157C eval daughter on eval mother";
 	compatible = "st,stm32mp157c-ev1", "st,stm32mp157c-ed1", "st,stm32mp157";
 
+	aliases {
+		ethernet0 = &ethernet0;
+	};
 };
 
 &cec {
@@ -19,6 +22,24 @@
 	status = "okay";
 };
 
+&ethernet0 {
+	status = "okay";
+	pinctrl-0 = <&ethernet0_rgmii_pins_a>;
+	pinctrl-names = "default";
+	phy-mode = "rgmii-id";
+	max-speed = <1000>;
+	phy-handle = <&phy0>;
+
+	mdio0 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "snps,dwmac-mdio";
+		phy0: ethernet-phy at 0 {
+			reg = <0>;
+		};
+	};
+};
+
 &i2c2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c2_pins_a>;
diff --git a/arch/arm/dts/stm32mp157c.dtsi b/arch/arm/dts/stm32mp157c.dtsi
index 37cadfa..1271abf 100644
--- a/arch/arm/dts/stm32mp157c.dtsi
+++ b/arch/arm/dts/stm32mp157c.dtsi
@@ -915,6 +915,41 @@
 			status = "disabled";
 		};
 
+		stmmac_axi_config_0: stmmac-axi-config {
+			snps,wr_osr_lmt = <0x7>;
+			snps,rd_osr_lmt = <0x7>;
+			snps,blen = <0 0 0 0 16 8 4>;
+		};
+
+		ethernet0: ethernet at 5800a000 {
+			compatible = "st,stm32mp1-dwmac", "snps,dwmac-4.20a";
+			reg = <0x5800a000 0x2000>;
+			reg-names = "stmmaceth";
+			interrupts-extended =
+				<&intc GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>,
+				<&exti 70 1>;
+			interrupt-names = "macirq",
+					  "eth_wake_irq",
+					  "stm32_pwr_wakeup";
+			clock-names = "stmmaceth",
+				      "mac-clk-tx",
+				      "mac-clk-rx",
+				      "ethstp";
+			clocks = <&rcc ETHMAC>,
+				 <&rcc ETHTX>,
+				 <&rcc ETHRX>,
+				 <&rcc ETHSTP>;
+			st,syscon = <&syscfg 0x4>;
+			snps,mixed-burst;
+			snps,pbl = <2>;
+			snps,en-tx-lpi-clockgating;
+			snps,axi-config = <&stmmac_axi_config_0>;
+			snps,tso;
+			power-domains = <&pd_core>;
+			status = "disabled";
+		};
+
 		usbh_ohci: usbh-ohci at 5800c000 {
 			compatible = "generic-ohci";
 			reg = <0x5800c000 0x1000>;
-- 
2.7.4