From 625137da44d260fa690fe73130a4bffaa41ee950 Mon Sep 17 00:00:00 2001
From: Ryder Lee <ryder.lee@mediatek.com>
Date: Thu, 22 Aug 2019 12:26:51 +0200
Subject: [PATCH] arm: dts: add PCIe controller for MT7623 SoC

This adds PCIe and its PHY nodes for MT7623.

Tested-by: Frank Wunderlich <frank-w@public-files.de>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
---
 arch/arm/dts/mt7623.dtsi                 | 128 +++++++++++++++++++++++
 arch/arm/dts/mt7623n-bananapi-bpi-r2.dts |  29 +++++
 2 files changed, 157 insertions(+)

diff --git a/arch/arm/dts/mt7623.dtsi b/arch/arm/dts/mt7623.dtsi
index 64079c61bf..3a868ea2ee 100644
--- a/arch/arm/dts/mt7623.dtsi
+++ b/arch/arm/dts/mt7623.dtsi
@@ -9,6 +9,7 @@
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/phy/phy.h>
 #include <dt-bindings/power/mt7623-power.h>
 #include <dt-bindings/reset/mtk-reset.h>
 #include "skeleton.dtsi"
@@ -255,6 +256,133 @@
 		#reset-cells = <1>;
 	};
 
+	pcie: pcie@1a140000 {
+		compatible = "mediatek,mt7623-pcie";
+		device_type = "pci";
+		reg = <0x1a140000 0x1000>, /* PCIe shared registers */
+		      <0x1a142000 0x1000>, /* Port0 registers */
+		      <0x1a143000 0x1000>, /* Port1 registers */
+		      <0x1a144000 0x1000>; /* Port2 registers */
+		reg-names = "subsys", "port0", "port1", "port2";
+		#address-cells = <3>;
+		#size-cells = <2>;
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0xf800 0 0 0>;
+		interrupt-map = <0x0000 0 0 0 &sysirq GIC_SPI 193 IRQ_TYPE_LEVEL_LOW>,
+				<0x0800 0 0 0 &sysirq GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>,
+				<0x1000 0 0 0 &sysirq GIC_SPI 195 IRQ_TYPE_LEVEL_LOW>;
+		clocks = <&topckgen CLK_TOP_ETHIF_SEL>,
+			 <&hifsys CLK_HIFSYS_PCIE0>,
+			 <&hifsys CLK_HIFSYS_PCIE1>,
+			 <&hifsys CLK_HIFSYS_PCIE2>;
+		clock-names = "free_ck", "sys_ck0", "sys_ck1", "sys_ck2";
+		resets = <&hifsys HIFSYS_PCIE0_RST>,
+			 <&hifsys HIFSYS_PCIE1_RST>,
+			 <&hifsys HIFSYS_PCIE2_RST>;
+		reset-names = "pcie-rst0", "pcie-rst1", "pcie-rst2";
+		phys = <&pcie0_port PHY_TYPE_PCIE>,
+		       <&pcie1_port PHY_TYPE_PCIE>,
+		       <&u3port1 PHY_TYPE_PCIE>;
+		phy-names = "pcie-phy0", "pcie-phy1", "pcie-phy2";
+		power-domains = <&scpsys MT7623_POWER_DOMAIN_HIF>;
+		bus-range = <0x00 0xff>;
+		status = "disabled";
+		ranges = <0x81000000 0 0x1a160000 0x1a160000 0 0x00010000
+			  0x83000000 0 0x60000000 0x60000000 0 0x10000000>;
+
+		pcie@0,0 {
+			reg = <0x0000 0 0 0 0>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+			#interrupt-cells = <1>;
+			interrupt-map-mask = <0 0 0 0>;
+			interrupt-map = <0 0 0 0 &sysirq GIC_SPI 193 IRQ_TYPE_LEVEL_LOW>;
+			ranges;
+			status = "disabled";
+		};
+
+		pcie@1,0 {
+			reg = <0x0800 0 0 0 0>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+			#interrupt-cells = <1>;
+			interrupt-map-mask = <0 0 0 0>;
+			interrupt-map = <0 0 0 0 &sysirq GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>;
+			ranges;
+			status = "disabled";
+		};
+
+		pcie@2,0 {
+			reg = <0x1000 0 0 0 0>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+			#interrupt-cells = <1>;
+			interrupt-map-mask = <0 0 0 0>;
+			interrupt-map = <0 0 0 0 &sysirq GIC_SPI 195 IRQ_TYPE_LEVEL_LOW>;
+			ranges;
+			status = "disabled";
+		};
+	};
+
+	pcie0_phy: pcie-phy@1a149000 {
+		compatible = "mediatek,generic-tphy-v1";
+		reg = <0x1a149000 0x0700>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+		status = "disabled";
+
+		pcie0_port: pcie-phy@1a149900 {
+			reg = <0x1a149900 0x0700>;
+			clocks = <&clk26m>;
+			clock-names = "ref";
+			#phy-cells = <1>;
+			status = "okay";
+		};
+	};
+
+	pcie1_phy: pcie-phy@1a14a000 {
+		compatible = "mediatek,generic-tphy-v1";
+		reg = <0x1a14a000 0x0700>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+		status = "disabled";
+
+		pcie1_port: pcie-phy@1a14a900 {
+			reg = <0x1a14a900 0x0700>;
+			clocks = <&clk26m>;
+			clock-names = "ref";
+			#phy-cells = <1>;
+			status = "okay";
+		};
+	};
+
+	u3phy2: usb-phy@1a244000 {
+		compatible = "mediatek,generic-tphy-v1";
+		reg = <0x1a244000 0x0700>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+		status = "disabled";
+
+		u2port1: usb-phy@1a244800 {
+			reg = <0x1a244800 0x0100>;
+			clocks = <&topckgen CLK_TOP_USB_PHY48M>;
+			clock-names = "ref";
+			#phy-cells = <1>;
+			status = "okay";
+		};
+
+		u3port1: usb-phy@1a244900 {
+			reg = <0x1a244900 0x0700>;
+			clocks = <&clk26m>;
+			clock-names = "ref";
+			#phy-cells = <1>;
+			status = "okay";
+		};
+	};
+
 	ethsys: syscon@1b000000 {
 		compatible = "mediatek,mt7623-ethsys", "syscon";
 		reg = <0x1b000000 0x1000>;
diff --git a/arch/arm/dts/mt7623n-bananapi-bpi-r2.dts b/arch/arm/dts/mt7623n-bananapi-bpi-r2.dts
index 51628bb639..b0c86219b6 100644
--- a/arch/arm/dts/mt7623n-bananapi-bpi-r2.dts
+++ b/arch/arm/dts/mt7623n-bananapi-bpi-r2.dts
@@ -172,6 +172,13 @@
 		};
 	};
 
+	pcie_default: pcie-default {
+		mux {
+			function = "pcie";
+			groups =  "pcie0_0_perst", "pcie1_0_perst";
+		};
+	};
+
 	uart0_pins_a: uart0-default {
 		mux {
 			function = "uart";
@@ -201,6 +208,28 @@
 	};
 };
 
+&pcie {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie_default>;
+	status = "okay";
+
+	pcie@0,0 {
+		status = "okay";
+	};
+
+	pcie@1,0 {
+		status = "okay";
+	};
+};
+
+&pcie0_phy {
+	status = "okay";
+};
+
+&pcie1_phy {
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_pins_a>;