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https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1474441/am67-am67-evm-watchdog-can-t-reboot-how-to-test-the-am67-s-watchdog
工具与软件：
大家好！
我在 AM67 EVM 中使用了 am67 SDK 10.0.1、当我测试看门狗时、它无法重新启动、如何在 AM67 EVM SDK 中测试看门狗重新启动？
谢谢
您好！
看门狗支持仍不是当前 SDK 的一部分。 这将采用11.0 SDK。
此致、
基尔西
嗨、Keerthy、
您是否有适用于 SDK 10.x 的此补丁？
您好！ 在 Linux 存储库中、您需要以下 diff：
diff --git a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi index f8915d7a9..aac9a82fe 100644 --- a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi @@ -960,7 +960,7 @@ clocks = <&k3_clks 125 0>; power-domains = <&k3_pds 125 TI_SCI_PD_EXCLUSIVE>; assigned-clocks = <&k3_clks 125 0>; - assigned-clock-parents = <&k3_clks 125 2>; + assigned-clock-parents = <&k3_clks 125 4>; }; main_rti1: watchdog@e010000 { @@ -969,7 +969,7 @@ clocks = <&k3_clks 126 0>; power-domains = <&k3_pds 126 TI_SCI_PD_EXCLUSIVE>; assigned-clocks = <&k3_clks 126 0>; - assigned-clock-parents = <&k3_clks 126 2>; + assigned-clock-parents = <&k3_clks 126 4>; }; main_rti2: watchdog@e020000 { @@ -978,7 +978,7 @@ clocks = <&k3_clks 127 0>; power-domains = <&k3_pds 127 TI_SCI_PD_EXCLUSIVE>; assigned-clocks = <&k3_clks 127 0>; - assigned-clock-parents = <&k3_clks 127 2>; + assigned-clock-parents = <&k3_clks 127 4>; }; main_rti3: watchdog@e030000 { @@ -987,7 +987,7 @@ clocks = <&k3_clks 128 0>; power-domains = <&k3_pds 128 TI_SCI_PD_EXCLUSIVE>; assigned-clocks = <&k3_clks 128 0>; - assigned-clock-parents = <&k3_clks 128 2>; + assigned-clock-parents = <&k3_clks 128 4>; }; main_rti15: watchdog@e0f0000 { @@ -996,7 +996,7 @@ clocks = <&k3_clks 130 0>; power-domains = <&k3_pds 130 TI_SCI_PD_EXCLUSIVE>; assigned-clocks = <&k3_clks 130 0>; - assigned-clock-parents = <&k3_clks 130 2>; + assigned-clock-parents = <&k3_clks 130 4>; }; epwm0: pwm@23000000 { diff --git a/arch/arm64/boot/dts/ti/k3-am62p-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-mcu.dtsi index b03abf321..cb0fac93a 100644 --- a/arch/arm64/boot/dts/ti/k3-am62p-mcu.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62p-mcu.dtsi @@ -167,7 +167,7 @@ clocks = <&k3_clks 131 0>; power-domains = <&k3_pds 131 TI_SCI_PD_EXCLUSIVE>; assigned-clocks = <&k3_clks 131 0>; - assigned-clock-parents = <&k3_clks 131 2>; + assigned-clock-parents = <&k3_clks 131 4>; /* Tightly coupled to M4F */ status = "reserved"; };
对于 U-Boot 存储库、您需要应用以下补丁：
e2e.ti.com/.../j722s_2D00_wdt.tar
此致、 基尔西
嗨 Keerthy、
这个补丁是好的,非常感谢!
/dev/watchdog0/1/2 //3/4之间的区别是什么？ 可以使用哪一个？ 或者可以全部使用？
它们是在器件树中启用的看门狗的实例。 可以使用其中任何一个。
