arm: dts: apple: Add watchdog timer node

Add a node for the watchdog timer based on the proposed Linux
device tree bindings.

Remove the old reboot node which was a watchdog timert node in
disguise using a preliminary device tree binding.

Signed-off-by: Sven Peter <sven@svenpeter.dev>
Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Tested-on: Apple M1 Macbook
Tested-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/arm/dts/t8103.dtsi b/arch/arm/dts/t8103.dtsi
index 7d9cb27..03d8436 100644 (file)
--- a/arch/arm/dts/t8103.dtsi
+++ b/arch/arm/dts/t8103.dtsi
@@ -328,6 +328,14 @@
                                     <AIC_IRQ 336 IRQ_TYPE_LEVEL_HIGH>;
                };
 
+               wdt: watchdog@23d2b0000 {
+                       compatible = "apple,t8103-wdt", "apple,wdt";
+                       reg = <0x2 0x3d2b0000 0x0 0x4000>;
+                       clocks = <&clkref>;
+                       interrupt-parent = <&aic>;
+                       interrupts = <AIC_IRQ 338 IRQ_TYPE_LEVEL_HIGH>;
+               };
+
                pinctrl_smc: pinctrl@23e820000 {
                        compatible = "apple,t8103-pinctrl", "apple,pinctrl";
                        reg = <0x2 0x3e820000 0x0 0x4000>;
@@ -529,11 +537,6 @@
                        status = "disabled";
                };
 
-               reboot@23d2b0000 {
-                       compatible = "apple,reboot-v0";
-                       reg = <0x2 0x3d2b0000 0x0 0x4000>;
-               };
-
                spi@23510c000 {
                        compatible = "apple,t8103-spi", "apple,spi";
                        reg = <0x2 0x3510c000 0x0 0x4000>;