@@ -232,3 +232,63 @@ &tlv320aic3106 {
&gpmc0 {
ranges = <0 0 0x00 0x51000000 0x01000000>; /* CS0 space. Min partition = 16MB */
};
+
+&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_deep_sleep>,
+ <&system_mcu_only>,
+ <&system_standby>;
+ status = "okay";
+};
+
+&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_deep_sleep>,
+ <&system_mcu_only>,
+ <&system_standby>;
+ status = "okay";
+};
+
+&mcu_pmx0 {
+ mcu_mcan0_tx_pins_default: mcu-mcan0-tx-default-pins {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x034, PIN_OUTPUT, 0) /* (D6) MCU_MCAN0_TX */
+ >;
+ };
+
+ mcu_mcan0_rx_pins_default: mcu-mcan0-rx-default-pins {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x038, PIN_INPUT, 0) /* (B3) MCU_MCAN0_RX */
+ >;
+ };
+
+ mcu_mcan0_rx_pins_wakeup: mcu-mcan0-rx-wakeup-pins {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x038, PIN_INPUT | WKUP_EN, 0) /* (B3) MCU_MCAN0_RX */
+ >;
+ };
+
+ mcu_mcan1_tx_pins_default: mcu-mcan1-tx-default-pins {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x03c, PIN_OUTPUT, 0) /* (E5) MCU_MCAN1_TX */
+ >;
+ };
+
+ mcu_mcan1_rx_pins_default: mcu-mcan1-rx-default-pins {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x040, PIN_INPUT, 0) /* (D4) MCU_MCAN1_RX */
+ >;
+ };
+
+ mcu_mcan1_rx_pins_wakeup: mcu-mcan1-rx-wakeup-pins {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x040, PIN_INPUT | WKUP_EN, 0) /* (D4) MCU_MCAN1_RX */
+ >;
+ };
+};
The CANUART pins of mcu_mcan0, mcu_mcan1, mcu_uart0 and wkup_uart0 are powered during Partial-IO and IO+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. As IO+DDR is not supported on am62, the UARTs are not added in this patch. 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: Markus Schneider-Pargmann <msp@baylibre.com> --- arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts | 60 ++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+)