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.
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 e0f6775b9878..16c5eb7f53b1 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;
};
chosen {
@@ -43,3 +44,7 @@ memory@800000000 {
&serial0 {
status = "okay";
};
+
+&serial2 {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi
index 63056ddc7ef7..844ed7bd0451 100644
--- a/arch/arm64/boot/dts/apple/t8103.dtsi
+++ b/arch/arm64/boot/dts/apple/t8103.dtsi
@@ -126,6 +126,18 @@ 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 = <&clkref>, <&clkref>;
+ 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
