diff mbox series

[v3,13/13] arm64: dts: renesas: r8a779f0: spider: Enable PCIe Host ch0

Message ID 20220701085420.870306-14-yoshihiro.shimoda.uh@renesas.com
State New
Headers show
Series treewide: PCI: renesas: Add R-Car Gen4 PCIe support | expand

Commit Message

Yoshihiro Shimoda July 1, 2022, 8:54 a.m. UTC 
Enable PCIe Host controller channel 0 on R-Car S4-8 Spider board.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
---
 .../boot/dts/renesas/r8a779f0-spider-cpu.dtsi | 39 +++++++++++++++++++
 1 file changed, 39 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi b/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi
index 81d178e69527..34db1b902af8 100644
--- a/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi
@@ -5,6 +5,7 @@ 
  * Copyright (C) 2021 Renesas Electronics Corp.
  */
 
+#include <dt-bindings/gpio/gpio.h>
 #include "r8a779f0.dtsi"
 
 / {
@@ -31,6 +32,28 @@  &extalr_clk {
 	clock-frequency = <32768>;
 };
 
+&i2c0 {
+	pinctrl-0 = <&i2c0_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+	clock-frequency = <400000>;
+
+	gpio_exp_20: gpio@20 {
+		compatible = "ti,tca9554";
+		reg = <0x20>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		pcie-perst-hog {
+			gpio-hog;
+			gpios = <0 GPIO_ACTIVE_HIGH>;
+			output-high;
+			line-name = "PCIE_PERSTn";
+		};
+	};
+};
+
 &i2c4 {
 	pinctrl-0 = <&i2c4_pins>;
 	pinctrl-names = "default";
@@ -46,15 +69,31 @@  eeprom@50 {
 	};
 };
 
+&pciec0 {
+	pinctrl-0 = <&pcie0_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
 &pfc {
 	pinctrl-0 = <&scif_clk_pins>;
 	pinctrl-names = "default";
 
+	i2c0_pins: i2c0 {
+		groups = "i2c0";
+		function = "i2c0";
+	};
+
 	i2c4_pins: i2c4 {
 		groups = "i2c4";
 		function = "i2c4";
 	};
 
+	pcie0_pins: pcie0 {
+		groups = "pcie0_clkreq_n";
+		function = "pcie";
+	};
+
 	scif3_pins: scif3 {
 		groups = "scif3_data", "scif3_ctrl";
 		function = "scif3";