[PATCH v2 4/5] arm64: dts: renesas: falcon: Add Ethernet-AVB0 support

[Wolfram Sang]

Signed-off-by: Wolfram Sang <wsa+rene...@sang-engineering.com>
---
Change since v1:

* removed avb1-5 which couldn't be tested
* added alias for avb0 so firmware can add MAC address
* added custom tx-internal-delay-ps
* dropped '_tx' suffix from 'pins_mii' config
* moved entries to Falcon CPU dtsi

 .../boot/dts/renesas/r8a779a0-falcon-cpu.dtsi | 35 +++++++++++++++++++
 .../boot/dts/renesas/r8a779a0-falcon.dts      |  1 +
 2 files changed, 36 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a779a0-falcon-cpu.dtsi 
b/arch/arm64/boot/dts/renesas/r8a779a0-falcon-cpu.dtsi
index 6dcd4683b071..f96b03f39787 100644
--- a/arch/arm64/boot/dts/renesas/r8a779a0-falcon-cpu.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779a0-falcon-cpu.dtsi
@@ -5,6 +5,7 @@
  * Copyright (C) 2020 Renesas Electronics Corp.
  */
 
+#include <dt-bindings/gpio/gpio.h>
 #include "r8a779a0.dtsi"
 
 / {
@@ -33,6 +34,22 @@ memory@700000000 {
        };
 };
 
+&avb0 {
+       pinctrl-0 = <&avb0_pins>;
+       pinctrl-names = "default";
+       phy-handle = <&phy0>;
+       tx-internal-delay-ps = <2000>;
+       status = "okay";
+
+       phy0: ethernet-phy@0 {
+               rxc-skew-ps = <1500>;
+               reg = <0>;
+               interrupt-parent = <&gpio4>;
+               interrupts = <16 IRQ_TYPE_LEVEL_LOW>;
+               reset-gpios = <&gpio4 15 GPIO_ACTIVE_LOW>;
+       };
+};
+
 &extal_clk {
        clock-frequency = <16666666>;
 };
@@ -98,6 +115,24 @@ &i2c6 {
 };
 
 &pfc {
+       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>;
+               };
+
+       };
+
        i2c0_pins: i2c0 {
                groups = "i2c0";
                function = "i2c0";
diff --git a/arch/arm64/boot/dts/renesas/r8a779a0-falcon.dts 
b/arch/arm64/boot/dts/renesas/r8a779a0-falcon.dts
index fb9978ea18f4..5617b81dd7dc 100644
--- a/arch/arm64/boot/dts/renesas/r8a779a0-falcon.dts
+++ b/arch/arm64/boot/dts/renesas/r8a779a0-falcon.dts
@@ -13,6 +13,7 @@ / {
        compatible = "renesas,falcon-breakout", "renesas,falcon-cpu", 
"renesas,r8a779a0";
 
        aliases {
+               ethernet0 = &avb0;
                serial0 = &scif0;
        };
 
-- 
2.29.2