[PATCH v3 11/11] arm64: dts: apple: t8103: Add UART2

From: Hector Martin
Date: Wed Nov 24 2021 - 02:47:16 EST


This UART is connected to the debug port of the WLAN module. It is
mostly useless, but makes for a good test case for runtime-pm without
having to unbind the console from the main system UART.

Reviewed-by: Mark Kettenis <kettenis@xxxxxxxxxxx>
Signed-off-by: Hector Martin <marcan@xxxxxxxxx>
---
arch/arm64/boot/dts/apple/t8103-j274.dts | 5 +++++
arch/arm64/boot/dts/apple/t8103.dtsi | 12 ++++++++++++
2 files changed, 17 insertions(+)

diff --git a/arch/arm64/boot/dts/apple/t8103-j274.dts b/arch/arm64/boot/dts/apple/t8103-j274.dts
index 33a80f9501dc..86ea1b0a6cc8 100644
--- a/arch/arm64/boot/dts/apple/t8103-j274.dts
+++ b/arch/arm64/boot/dts/apple/t8103-j274.dts
@@ -17,6 +17,7 @@ / {

aliases {
serial0 = &serial0;
+ serial2 = &serial2;
ethernet0 = &ethernet0;
};

@@ -45,6 +46,10 @@ &serial0 {
status = "okay";
};

+&serial2 {
+ status = "okay";
+};
+
/*
* Force the bus number assignments so that we can declare some of the
* on-board devices and properties that are populated by the bootloader
diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi
index 0487ac64fca3..26b5d68a5c7b 100644
--- a/arch/arm64/boot/dts/apple/t8103.dtsi
+++ b/arch/arm64/boot/dts/apple/t8103.dtsi
@@ -127,6 +127,18 @@ serial0: serial@235200000 {
status = "disabled";
};

+ serial2: serial@235208000 {
+ compatible = "apple,s5l-uart";
+ reg = <0x2 0x35208000 0x0 0x1000>;
+ reg-io-width = <4>;
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 607 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk24>, <&clk24>;
+ clock-names = "uart", "clk_uart_baud0";
+ power-domains = <&ps_uart2>;
+ status = "disabled";
+ };
+
aic: interrupt-controller@23b100000 {
compatible = "apple,t8103-aic", "apple,aic";
#interrupt-cells = <3>;
--
2.33.0