From 349699235dc0487911710aa482cd9c2eed0dabbd Mon Sep 17 00:00:00 2001 From: Li Hua Qian Date: Tue, 29 Aug 2023 11:46:21 +0800 Subject: [PATCH] Watchdog: Support WDIOF_CARDRESET on TI AM65x platform To have the WDIOF_CARDRESET support for the TI AM65x platform watchdog, this patch reserves some memories, which indicate if the current boot due to a watchdog reset. Signed-off-by: Li Hua Qian --- arch/arm/dts/k3-am65-iot2050-common.dtsi | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm/dts/k3-am65-iot2050-common.dtsi b/arch/arm/dts/k3-am65-iot2050-common.dtsi index 65da226847..b6135b849f 100644 --- a/arch/arm/dts/k3-am65-iot2050-common.dtsi +++ b/arch/arm/dts/k3-am65-iot2050-common.dtsi @@ -64,6 +64,12 @@ 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 { @@ -720,6 +726,11 @@ mboxes = <&mailbox0_cluster1 &mbox_mcu_r5fss0_core1>; }; +&mcu_rti1 { + memory-region = <&wdt_reset_memory_region>; + +}; + &icssg0_mdio { status = "disabled"; }; -- 2.39.5