linux-kernel - [PATCH V3 6/6] ARM: dts: stm32: Add Ethernet support on stm32h7 SOC and activate it for eval and disco boards

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Message-ID: <1551774568-11732-7-git-send-email-christophe.roullier@st.com>
Date:   Tue, 5 Mar 2019 09:29:28 +0100
From:   Christophe Roullier <christophe.roullier@...com>
To:     <robh@...nel.org>, <davem@...emloft.net>, <joabreu@...opsys.com>,
        <mark.rutland@....com>, <mcoquelin.stm32@...il.com>,
        <alexandre.torgue@...com>, <peppe.cavallaro@...com>
CC:     <linux-stm32@...md-mailman.stormreply.com>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <netdev@...r.kernel.org>,
        <christophe.roullier@...com>, <andrew@...n.ch>
Subject: [PATCH V3 6/6] 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@...com>
---
 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 24be8e6..980b276 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 cbdd69c..e103b29 100644
--- a/arch/arm/boot/dts/stm32h743.dtsi
+++ b/arch/arm/boot/dts/stm32h743.dtsi
@@ -511,6 +511,19 @@
 				status = "disabled";
 			};
 		};
+
+		mac: ethernet@...28000 {
+			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 45e088c..83ef63d 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 3f8e0c4..383c5bb 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";
-- 
2.7.4