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

[Christophe Roullier]

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.roull...@st.com>
---
 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..0f738d0 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";
+               phy1: ethernet-phy@1 {
+                       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..44997ba 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";
+               phy1: ethernet-phy@1 {
+                       reg = <0>;
+               };
+       };
+};
+
 &usart1 {
        pinctrl-0 = <&usart1_pins>;
        pinctrl-names = "default";
-- 
2.7.4