[PATCH V2 7/8] ARM: dts: stm32: Add Ethernet support on stm32h7 SOC and activate it for eval and disco boards

From: Christophe Roullier
Date: Fri Feb 22 2019 - 03:29:13 EST


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@xxxxxx>
---
arch/arm/boot/dts/stm32h743-pinctrl.dtsi | 15 +++++++++++++++
arch/arm/boot/dts/stm32h743.dtsi | 19 +++++++++++++++++++
arch/arm/boot/dts/stm32h743i-disco.dts | 17 +++++++++++++++++
arch/arm/boot/dts/stm32h743i-eval.dts | 17 +++++++++++++++++
4 files changed, 68 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..f6384af 100644
--- a/arch/arm/boot/dts/stm32h743.dtsi
+++ b/arch/arm/boot/dts/stm32h743.dtsi
@@ -511,6 +511,25 @@
status = "disabled";
};
};
+
+ syscfg: system-config@58000400 {
+ compatible = "syscon";
+ reg = <0x58000400 0x400>;
+ };
+
+ 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",
+ "syscfg-clk";
+ clocks = <&rcc ETH1MAC_CK>, <&rcc ETH1TX_CK>, <&rcc ETH1RX_CK>, <&rcc SYSCFG_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..26ddd52 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 = "okay";
+ pinctrl-0 = <&ethernet_rmii>;
+ pinctrl-names = "default";
+ phy-mode = "rmii";
+ phy-handle = <&phy1>;
+
+ 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..c1c1cc1 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 = "okay";
+ pinctrl-0 = <&ethernet_rmii>;
+ pinctrl-names = "default";
+ phy-mode = "rmii";
+ phy-handle = <&phy1>;
+
+ 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