From: Thanh Quan <thanh.quan.xn@xxxxxxxxxxx>
Describe the wiring of the first Ethernet AVB instance to the Micrel
KSZ9031RNXVB PHY.
Signed-off-by: Thanh Quan <thanh.quan.xn@xxxxxxxxxxx>
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
Changes compared to the BSP:
- Split in separate commits for SoC and board support,
- Apply to r8a779h0-gray-hawk-single.dts.
---
.../dts/renesas/r8a779h0-gray-hawk-single.dts | 37 +++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts b/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
index 1bee27b2284d2eee..625e7448bc9fc1ce 100644
--- a/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
+++ b/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
@@ -15,6 +15,7 @@ / {
aliases {
serial0 = &hscif0;
+ ethernet0 = &avb0;
};
chosen {
@@ -34,6 +35,24 @@ memory@480000000 {
};
};
+&avb0 {
+ pinctrl-0 = <&avb0_pins>;
+ pinctrl-names = "default";
+ phy-handle = <&phy0>;
+ tx-internal-delay-ps = <2000>;
+ status = "okay";
+
+ phy0: ethernet-phy@0 {
+ compatible = "ethernet-phy-id0022.1622",
+ "ethernet-phy-ieee802.3-c22";
+ rxc-skew-ps = <1500>;
+ reg = <0>;
+ interrupt-parent = <&gpio7>;
+ interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
+ reset-gpios = <&gpio7 10 GPIO_ACTIVE_LOW>;
+ };
+};
+
&extal_clk {
clock-frequency = <16666666>;
};
@@ -90,6 +109,24 @@ &pfc {
pinctrl-0 = <&scif_clk_pins>;
pinctrl-names = "default";
+ avb0_pins: avb0 {
+ mux {
+ groups = "avb0_link", "avb0_mdio", "avb0_rgmii",
+ "avb0_txcrefclk";
+ function = "avb0";
+ };
+
+ pins_mdio {
+ groups = "avb0_mdio";
+ drive-strength = <21>;
+ };
+
+ pins_mii {
+ groups = "avb0_rgmii";
+ drive-strength = <21>;
+ };
+ };
+
hscif0_pins: hscif0 {
groups = "hscif0_data", "hscif0_ctrl";
function = "hscif0";
--
2.34.1
