diff mbox series

[v2,2/3] arm64: dts: ti: Add reserved memory for watchdog

Message ID 20230711091713.1113010-3-huaqian.li@siemens.com
State Superseded
Headers show
Series Add support for WDIOF_CARDRESET on TI AM65x | expand

Commit Message

Li, Hua Qian July 11, 2023, 9:17 a.m. UTC 
From: Li Hua Qian <huaqian.li@siemens.com>

This patch adds a reserved memory for the TI AM65X platform watchdog to
reserve the specific info, triggering the watchdog reset in last boot,
to know if the board reboot is due to a watchdog reset.

Signed-off-by: Li Hua Qian <huaqian.li@siemens.com>
---
 arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
index e26bd988e522..77380e52a334 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
@@ -63,6 +63,12 @@  rtos_ipc_memory_region: ipc-memories@a2000000 {
 			alignment = <0x1000>;
 			no-map;
 		};
+
+		/* To reserve the power-on(PON) reason for watchdog reset */
+		wdt_reset_memory_region: wdt-memory@a2200000 {
+			reg = <0x00 0xa2200000 0x00 0x00001000>;
+			no-map;
+		};
 	};
 
 	leds {
@@ -718,3 +724,8 @@  &mcu_r5fss0_core1 {
 			<&mcu_r5fss0_core1_memory_region>;
 	mboxes = <&mailbox0_cluster1>, <&mbox_mcu_r5fss0_core1>;
 };
+
+&mcu_rti1 {
+	reg = <0x0 0x40610000 0x0 0x100>,
+	      <0x0 0xa2200000 0x0 0x1000>;
+};