From 5473f1be53c90252d3323e69e90a29379e608aaa Mon Sep 17 00:00:00 2001
From: Christophe Roullier <christophe.roullier@st.com>
Date: Tue, 5 Mar 2019 09:29:28 +0100
Subject: [PATCH] ARM: dts: stm32: Add Ethernet support on stm32h7 SOC and
 activate it for eval and disco boards

Synopsys GMAC 4.10 is used. And Phy mode for eval and disco is RMII
with PHY SMSC LAN8742

Signed-off-by: Christophe Roullier <christophe.roullier@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/arm/boot/dts/stm32h743-pinctrl.dtsi | 15 +++++++++++++++
 arch/arm/boot/dts/stm32h743.dtsi         | 13 +++++++++++++
 arch/arm/boot/dts/stm32h743i-disco.dts   | 17 +++++++++++++++++
 arch/arm/boot/dts/stm32h743i-eval.dts    | 17 +++++++++++++++++
 4 files changed, 62 insertions(+)

diff --git a/arch/arm/boot/dts/stm32h743-pinctrl.dtsi b/arch/arm/boot/dts/stm32h743-pinctrl.dtsi
index 24be8e63dec88..980b2769caf9c 100644
--- a/arch/arm/boot/dts/stm32h743-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stm32h743-pinctrl.dtsi
@@ -173,6 +173,21 @@
 				};
 			};
 
+			ethernet_rmii: rmii@0 {
+				pins {
+					pinmux = <STM32_PINMUX('G', 11, AF11)>,
+						 <STM32_PINMUX('G', 13, AF11)>,
+						 <STM32_PINMUX('G', 12, AF11)>,
+						 <STM32_PINMUX('C', 4, AF11)>,
+						 <STM32_PINMUX('C', 5, AF11)>,
+						 <STM32_PINMUX('A', 7, AF11)>,
+						 <STM32_PINMUX('C', 1, AF11)>,
+						 <STM32_PINMUX('A', 2, AF11)>,
+						 <STM32_PINMUX('A', 1, AF11)>;
+					slew-rate = <2>;
+				};
+			};
+
 			usart1_pins: usart1@0 {
 				pins1 {
 					pinmux = <STM32_PINMUX('B', 14, AF4)>; /* USART1_TX */
diff --git a/arch/arm/boot/dts/stm32h743.dtsi b/arch/arm/boot/dts/stm32h743.dtsi
index cbdd69ca9e7a6..e103b29969ca4 100644
--- a/arch/arm/boot/dts/stm32h743.dtsi
+++ b/arch/arm/boot/dts/stm32h743.dtsi
@@ -511,6 +511,19 @@
 				status = "disabled";
 			};
 		};
+
+		mac: ethernet@40028000 {
+			compatible = "st,stm32-dwmac", "snps,dwmac-4.10a";
+			reg = <0x40028000 0x8000>;
+			reg-names = "stmmaceth";
+			interrupts = <61>;
+			interrupt-names = "macirq";
+			clock-names = "stmmaceth", "mac-clk-tx", "mac-clk-rx";
+			clocks = <&rcc ETH1MAC_CK>, <&rcc ETH1TX_CK>, <&rcc ETH1RX_CK>;
+			st,syscon = <&syscfg 0x4>;
+			snps,pbl = <8>;
+			status = "disabled";
+		};
 	};
 };
 
diff --git a/arch/arm/boot/dts/stm32h743i-disco.dts b/arch/arm/boot/dts/stm32h743i-disco.dts
index 45e088c55741a..83ef63d515a8f 100644
--- a/arch/arm/boot/dts/stm32h743i-disco.dts
+++ b/arch/arm/boot/dts/stm32h743i-disco.dts
@@ -66,6 +66,23 @@
 	clock-frequency = <25000000>;
 };
 
+&mac {
+	status = "disabled";
+	pinctrl-0	= <&ethernet_rmii>;
+	pinctrl-names	= "default";
+	phy-mode	= "rmii";
+	phy-handle	= <&phy0>;
+
+	mdio0 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "snps,dwmac-mdio";
+		phy0: ethernet-phy@0 {
+			reg = <0>;
+		};
+	};
+};
+
 &usart2 {
 	pinctrl-0 = <&usart2_pins>;
 	pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/stm32h743i-eval.dts b/arch/arm/boot/dts/stm32h743i-eval.dts
index 3f8e0c4a998d0..383c5bb037202 100644
--- a/arch/arm/boot/dts/stm32h743i-eval.dts
+++ b/arch/arm/boot/dts/stm32h743i-eval.dts
@@ -104,6 +104,23 @@
 	status = "okay";
 };
 
+&mac {
+	status = "disabled";
+	pinctrl-0	= <&ethernet_rmii>;
+	pinctrl-names	= "default";
+	phy-mode	= "rmii";
+	phy-handle	= <&phy0>;
+
+	mdio0 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "snps,dwmac-mdio";
+		phy0: ethernet-phy@0 {
+			reg = <0>;
+		};
+	};
+};
+
 &usart1 {
 	pinctrl-0 = <&usart1_pins>;
 	pinctrl-names = "default";
-- 
2.50.1