[PATCH 3/3] arm64: boot: dts: ti: k3-am62l3-evm: enable WKUP UART wakeup from LPM

Bryan Brattlof bb at ti.com
Mon Jan 5 06:01:28 PST 2026


On December 30, 2025 thus sayeth Kendall Willis:
> Change the status of the wkup_uart0_interconnect node to enabled. The
> target-module node sets the UART SYSC and SYSS registers to allow wakeup
> from WKUP UART in DeepSleep low power mode.
> 
> Signed-off-by: Kendall Willis <k-willis at ti.com>
> ---
>  arch/arm64/boot/dts/ti/k3-am62l3-evm.dts | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts b/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts
> index cae04cce337366b50928d39b0c888550b14e43d3..02b1a1c76b2ee05d49cd69d199a6aacdb1973fa0 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts
> @@ -359,3 +359,7 @@ &usb1 {
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&usb1_default_pins>;
>  };
> +
> +&wkup_uart0_interconnect {
> +	status = "okay";
> +};

Does the UART need to be enabled as well?

~Bryan



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