Enable PCIe Host controller channel 0 on R-Car S4-8 Spider board.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
---
.../boot/dts/renesas/r8a779f0-spider-cpu.dtsi | 39 +++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi b/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi
index 4a876d47f59b..b1d0f7c4fd6b 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"
/ {
@@ -49,6 +50,28 @@ &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";
@@ -85,10 +108,21 @@ &mmc0 {
status = "okay";
};
+&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";
@@ -100,6 +134,11 @@ mmc_pins: mmc {
power-source = <1800>;
};
+ pcie0_pins: pcie0 {
+ groups = "pcie0_clkreq_n";
+ function = "pcie";
+ };
+
scif0_pins: scif0 {
groups = "scif0_data", "scif0_ctrl";
function = "scif0";
--
2.25.1
