From 4ddf7f23ca54c29d4eb766ea031abe697f05178e Mon Sep 17 00:00:00 2001
From: Shawn Lin <shawn.lin@rock-chips.com>
Date: Fri, 13 Nov 2020 19:53:09 +0800
Subject: [PATCH] arm64: dts: rockchip: Add PCIe20 and PCIe30 bifurcation node

Change-Id: Ie59f6b0b46bef80c4c14fa2d9564e324dd3b8e6b
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
---
 .../dts/rockchip/rk3568-evb6-ddr3-v10.dtsi    | 50 +++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3568-evb6-ddr3-v10.dtsi b/arch/arm64/boot/dts/rockchip/rk3568-evb6-ddr3-v10.dtsi
index 0109a4423272..2023441a5dbf 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-evb6-ddr3-v10.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3568-evb6-ddr3-v10.dtsi
@@ -12,6 +12,17 @@
 	model = "Rockchip RK3568 EVB6 DDR3 V10 Board";
 	compatible = "rockchip,rk3568-evb6-ddr3-v10", "rockchip,rk3568";
 
+	pcie20_3v3: gpio-regulator {
+		compatible = "regulator-gpio";
+		regulator-name = "pcie20_3v3";
+		regulator-min-microvolt = <0100000>;
+		regulator-max-microvolt = <3300000>;
+		gpios = <&gpio0 RK_PD4 GPIO_ACTIVE_HIGH>;
+		gpios-states = <0x1>;
+		states = <0100000 0x0
+			  3300000 0x1>;
+	};
+
 	pcie30_avdd0v9: pcie30-avdd0v9 {
 		compatible = "regulator-fixed";
 		regulator-name = "pcie30_avdd0v9";
@@ -32,6 +43,17 @@
 		vin-supply = <&vcc3v3_sys>;
 	};
 
+	pcie30_3v3: gpio-regulator {
+		compatible = "regulator-gpio";
+		regulator-name = "pcie30_3v3";
+		regulator-min-microvolt = <0100000>;
+		regulator-max-microvolt = <3300000>;
+		gpios = <&gpio0 RK_PD4 GPIO_ACTIVE_HIGH>;
+		gpios-states = <0x1>;
+		states = <0100000 0x0
+			  3300000 0x1>;
+	};
+
 	rk_headset: rk-headset {
 		compatible = "rockchip_headset";
 		headset_gpio = <&gpio3 RK_PC2 GPIO_ACTIVE_LOW>;
@@ -50,6 +72,10 @@
 	};
 };
 
+&combphy2_psq {
+	status = "disabled";
+};
+
 /*
  * mipi_dphy0 needs to be enabled
  * when dsi0 is enabled
@@ -106,6 +132,30 @@
 	status = "disabled";
 };
 
+&pcie30phy {
+	status = "disabled";
+};
+
+&pcie2x1 {
+	reset-gpios = <&gpio1 RK_PB2 GPIO_ACTIVE_HIGH>;
+	vpcie3v3-supply = <&pcie20_3v3>;
+	status = "disabled";
+};
+
+&pcie3x1 {
+	rockchip,bifurcation;
+	reset-gpios = <&gpio3 RK_PA1 GPIO_ACTIVE_HIGH>;
+	vpcie3v3-supply = <&pcie30_3v3>;
+	status = "disabled";
+};
+
+&pcie3x2 {
+	rockchip,bifurcation;
+	reset-gpios = <&gpio2 RK_PD6 GPIO_ACTIVE_HIGH>;
+	vpcie3v3-supply = <&pcie30_3v3>;
+	status = "disabled";
+};
+
 &pinctrl {
 	headphone {
 		hp_det: hp-det {