The CANUART pins of mcu_mcan0, mcu_mcan1, mcu_uart0 and wkup_uart0 are
powered during Partial-IO and I/O Only + DDR and are capable of waking
up the system in these states. Specify the states in which these units
can do a wakeup on this board.

Note that the UARTs are not capable of wakeup in Partial-IO because of
of a UART mux on the board not being powered during Partial-IO.

Add pincontrol definitions for mcu_mcan0 and mcu_mcan1 for wakeup from
Partial-IO. Add these as wakeup pinctrl entries for both devices.

Signed-off-by: Kendall Willis <k-willis@ti.com>
---
This patch is based on a similar commit afb919a6b36b ("arm64: dts: ti:
k3-am62a7-sk: Set wakeup-source system-states") Markus made for the AM62A
SoC.
---
 arch/arm64/boot/dts/ti/k3-am62d2-evm.dts | 69 ++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
index a5d5dc0a7bec8c3a5dfa63e984ae398af3ede7c0..1ee851a646c053b5d6706f885c68058f4c4374b6 100644
--- a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts
@@ -199,6 +199,42 @@ led-0 {
 &mcu_pmx0 {
 	status = "okay";
 
+	mcu_mcan0_tx_pins_default: mcu-mcan0-tx-default-pins {
+		pinctrl-single,pins = <
+			AM62DX_MCU_IOPAD(0x0034, PIN_OUTPUT, 0) /* (C7) MCU_MCAN0_TX */
+		>;
+	};
+
+	mcu_mcan0_rx_pins_default: mcu-mcan0-rx-default-pins {
+		pinctrl-single,pins = <
+			AM62DX_MCU_IOPAD(0x0038, PIN_INPUT, 0) /* (E8) MCU_MCAN0_RX */
+		>;
+	};
+
+	mcu_mcan0_rx_pins_wakeup: mcu-mcan0-rx-wakeup-pins {
+		pinctrl-single,pins = <
+			AM62DX_MCU_IOPAD(0x0038, PIN_INPUT | PIN_WKUP_EN, 0) /* (E8) MCU_MCAN0_RX */
+		>;
+	};
+
+	mcu_mcan1_tx_pins_default: mcu-mcan1-tx-default-pins {
+		pinctrl-single,pins = <
+			AM62DX_MCU_IOPAD(0x003c, PIN_OUTPUT, 0) /* (D7) MCU_MCAN1_TX */
+		>;
+	};
+
+	mcu_mcan1_rx_pins_default: mcu-mcan1-rx-default-pins {
+		pinctrl-single,pins = <
+			AM62DX_MCU_IOPAD(0x0040, PIN_INPUT, 0) /* (B9) MCU_MCAN1_RX */
+		>;
+	};
+
+	mcu_mcan1_rx_pins_wakeup: mcu-mcan1-rx-wakeup-pins {
+		pinctrl-single,pins = <
+			AM62DX_MCU_IOPAD(0x040, PIN_INPUT | PIN_WKUP_EN, 0) /* (B9) MCU_MCAN1_RX */
+		>;
+	};
+
 	pmic_irq_pins_default: pmic-irq-default-pins {
 		pinctrl-single,pins = <
 			AM62DX_IOPAD(0x01f4, PIN_INPUT, 7) /* (F17) EXTINTn.GPIO1_31 */
@@ -228,6 +264,10 @@ AM62DX_MCU_IOPAD(0x0050, PIN_INPUT, 0) /* (E13) WKUP_I2C0_SDA */
 &wkup_uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&wkup_uart0_pins_default>;
+	wakeup-source = <&system_io_ddr>,
+			<&system_deep_sleep>,
+			<&system_mcu_only>,
+			<&system_standby>;
 	bootph-all;
 	status = "reserved";
 };
@@ -737,4 +777,33 @@ &c7x_0 {
 	firmware-name = "am62d-c71_0-fw";
 };
 
+&mcu_mcan0 {
+	pinctrl-names = "default", "wakeup";
+	pinctrl-0 = <&mcu_mcan0_tx_pins_default>, <&mcu_mcan0_rx_pins_default>;
+	pinctrl-1 = <&mcu_mcan0_tx_pins_default>, <&mcu_mcan0_rx_pins_wakeup>;
+	wakeup-source = <&system_partial_io>,
+			<&system_io_ddr>,
+			<&system_deep_sleep>,
+			<&system_mcu_only>,
+			<&system_standby>;
+};
+
+&mcu_mcan1 {
+	pinctrl-names = "default", "wakeup";
+	pinctrl-0 = <&mcu_mcan1_tx_pins_default>, <&mcu_mcan1_rx_pins_default>;
+	pinctrl-1 = <&mcu_mcan1_tx_pins_default>, <&mcu_mcan1_rx_pins_wakeup>;
+	wakeup-source = <&system_partial_io>,
+			<&system_io_ddr>,
+			<&system_deep_sleep>,
+			<&system_mcu_only>,
+			<&system_standby>;
+};
+
+&mcu_uart0 {
+	wakeup-source = <&system_io_ddr>,
+			<&system_deep_sleep>,
+			<&system_mcu_only>,
+			<&system_standby>;
+};
+
 #include "k3-am62a-ti-ipc-firmware.dtsi"

---
base-commit: af98e93c5c39e6d0b87b42f0a32dd3066f795718
change-id: 20260212-am62d-can-wkup-dts-a45edbb5361e

Best regards,
-- 
Kendall Willis <k-willis@ti.com>

Hi Kendall Willis,

On Thu, 12 Feb 2026 14:07:16 -0600, Kendall Willis wrote:
> The CANUART pins of mcu_mcan0, mcu_mcan1, mcu_uart0 and wkup_uart0 are
> powered during Partial-IO and I/O Only + DDR and are capable of waking
> up the system in these states. Specify the states in which these units
> can do a wakeup on this board.
> 
> Note that the UARTs are not capable of wakeup in Partial-IO because of
> of a UART mux on the board not being powered during Partial-IO.
> 
> [...]

I have applied the following to branch ti-k3-dts-next on [1].
Thank you!

[1/1] arm64: dts: ti: k3-am62d2-evm: Set wakeup-source system-states
      commit: d170388d5c80d3812811b02fe0ce13a5f90796d0

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent up the chain during
the next merge window (or sooner if it is a relevant bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux.git
--
Vignesh

On Feb 12, 2026 at 14:07:16 -0600, Kendall Willis wrote:
> The CANUART pins of mcu_mcan0, mcu_mcan1, mcu_uart0 and wkup_uart0 are
> powered during Partial-IO and I/O Only + DDR and are capable of waking
> up the system in these states. Specify the states in which these units
> can do a wakeup on this board.
> 
> Note that the UARTs are not capable of wakeup in Partial-IO because of
> of a UART mux on the board not being powered during Partial-IO.
> 
> Add pincontrol definitions for mcu_mcan0 and mcu_mcan1 for wakeup from
> Partial-IO. Add these as wakeup pinctrl entries for both devices.
> 
> Signed-off-by: Kendall Willis <k-willis@ti.com>
> ---
> This patch is based on a similar commit afb919a6b36b ("arm64: dts: ti:
> k3-am62a7-sk: Set wakeup-source system-states") Markus made for the AM62A
> SoC.

Reviewed-by: Dhruva Gole <d-gole@ti.com>



-- 
Best regards,
Dhruva Gole
Texas Instruments Incorporated