Commit 1581a732 authored by Markus Schneider-Pargmann (TI.com)'s avatar Markus Schneider-Pargmann (TI.com) Committed by Vignesh Raghavendra
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arm64: dts: ti: k3-am62p5-sk: Set wakeup-source system-states 



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: default avatarMarkus Schneider-Pargmann (TI.com) <msp@baylibre.com>
Link: https://patch.msgid.link/20251103-topic-am62-dt-partialio-v6-15-v5-6-b8d9ff5f2742@baylibre.com


Signed-off-by: default avatarVignesh Raghavendra <vigneshr@ti.com>
parent afb919a6

arch/arm64/boot/dts/ti/k3-am62p5-sk.dts

+69 −0
Original line number Diff line number Diff line
@@ -716,12 +716,52 @@ AM62PX_MCU_IOPAD(0x028, PIN_OUTPUT, 0) /* (D7) WKUP_UART0_TXD */ 
		>;

		bootph-all;

	};



	mcu_mcan0_tx_pins_default: mcu-mcan0-tx-default-pins {

		pinctrl-single,pins = <

			AM62PX_MCU_IOPAD(0x034, PIN_OUTPUT, 0) /* (D6) MCU_MCAN0_TX */

		>;

	};



	mcu_mcan0_rx_pins_default: mcu-mcan0-rx-default-pins {

		pinctrl-single,pins = <

			AM62PX_MCU_IOPAD(0x038, PIN_INPUT, 0) /* (B3) MCU_MCAN0_RX */

		>;

	};



	mcu_mcan0_rx_pins_wakeup: mcu-mcan0-rx-wakeup-pins {

		pinctrl-single,pins = <

			AM62PX_MCU_IOPAD(0x038, PIN_INPUT | PIN_WKUP_EN, 0) /* (B3) MCU_MCAN0_RX */

		>;

	};



	mcu_mcan1_tx_pins_default: mcu-mcan1-tx-default-pins {

		pinctrl-single,pins = <

			AM62PX_MCU_IOPAD(0x03c, PIN_OUTPUT, 0) /* (E5) MCU_MCAN1_TX */

		>;

	};



	mcu_mcan1_rx_pins_default: mcu-mcan1-rx-default-pins {

		pinctrl-single,pins = <

			AM62PX_MCU_IOPAD(0x040, PIN_INPUT, 0) /* (D4) MCU_MCAN1_RX */

		>;

	};



	mcu_mcan1_rx_pins_wakeup: mcu-mcan1-rx-wakeup-pins {

		pinctrl-single,pins = <

			AM62PX_MCU_IOPAD(0x040, PIN_INPUT | PIN_WKUP_EN, 0) /* (D4) MCU_MCAN1_RX */

		>;

	};

};



&wkup_uart0 {

	/* WKUP UART0 is used by DM firmware */

	pinctrl-names = "default";

	pinctrl-0 = <&wkup_uart0_pins_default>;

	wakeup-source = <&system_io_ddr>,

			<&system_deep_sleep>,

			<&system_mcu_only>,

			<&system_standby>;

	status = "reserved";

	bootph-all;

};
@@ -763,4 +803,33 @@ &epwm1 { 
	status = "okay";

};



&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-am62p-ti-ipc-firmware.dtsi"