On 17:51-20230713, huaqian.li@xxxxxxxxxxx wrote: > From: Li Hua Qian <huaqian.li@xxxxxxxxxxx> I guess I should be explicit about this: Lets keep this dts patch as "DONOTMERGE" in subject line for driver subsystem maintainer (I don't want a repeat of cpufreq maintainers picking up dts and associated warnings that are now pending fixes), resubmit at next rc1 and I can queue up the dts once the maintainers pick up the driver and bindings. Ref: https://lore.kernel.org/all/20230714084725.27847-1-krzysztof.kozlowski@xxxxxxxxxx/ > > 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> > --- > 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 e26bd988e522..4bb20d493651 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 0x1000>; > + no-map; > + }; > }; > > leds { > @@ -718,3 +724,7 @@ &mcu_r5fss0_core1 { > <&mcu_r5fss0_core1_memory_region>; > mboxes = <&mailbox0_cluster1>, <&mbox_mcu_r5fss0_core1>; > }; > + > +&mcu_rti1 { > + memory-region = <&wdt_reset_memory_region>; > +}; > -- > 2.34.1 > -- Regards, Nishanth Menon Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D
