On 17.01.24 07:06, huaqian.li@xxxxxxxxxxx wrote: > From: Li Hua Qian <huaqian.li@xxxxxxxxxxx> > > 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@xxxxxxxxxxx> > --- > The driver and binding have hit the master, which could be found in the > following link. > - watchdog:rit_wdt: Add support for WDIOF_CARDRESET > - dt-bindings: watchdog: ti,rti-wdt: Add support for WDIOF_CARDRESET > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=29057cc5bddc785ea0a11534d7ad2546fa0872d3 > > arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi | 10 ++++++++++ > 1 file changed, 10 insertions(+) > > 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 61a634afaa4f..88321799d468 100644 > --- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi > +++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi > @@ -75,6 +75,12 @@ 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 0x1000>; > + no-map; > + }; > }; > > leds { > @@ -1427,6 +1433,10 @@ &mcu_r5fss0_core1 { > mboxes = <&mailbox0_cluster1>, <&mbox_mcu_r5fss0_core1>; > }; > > +&mcu_rti1 { > + memory-region = <&wdt_reset_memory_region>; > +}; > + > &icssg0_mdio { > status = "okay"; > pinctrl-names = "default"; Is this not forgotten (now that my IOT2050 series was merged)? Thanks, Jan -- Siemens AG, Technology Linux Expert Center
