AM64 EVM board has a micro USB 2.0 AB connector and the USB0_VBUS is connected with a resistor divider in between. USB0_DRVVBUS pin is muxed between USB0_DRVVBUS and GPIO1_79 signals.
Add the corresponding properties and set the pinmux mode for USB subsystem in the evm dts file.
Signed-off-by: Aswath Govindraju a-govindraju@ti.com --- arch/arm/dts/k3-am642-evm.dts | 18 ++++++++++++++++++ arch/arm/dts/k3-am642-r5-evm.dts | 18 ++++++++++++++++++ 2 files changed, 36 insertions(+)
diff --git a/arch/arm/dts/k3-am642-evm.dts b/arch/arm/dts/k3-am642-evm.dts index dc3482bea433..3a505d22c635 100644 --- a/arch/arm/dts/k3-am642-evm.dts +++ b/arch/arm/dts/k3-am642-evm.dts @@ -201,6 +201,12 @@ AM64X_IOPAD(0x0144, PIN_OUTPUT, 4) /* (Y11) PRG1_PRU1_GPO15.RGMII2_TX_CTL */ >; }; + + main_usb0_pins_default: main-usb0-pins-default { + pinctrl-single,pins = < + AM64X_IOPAD(0x02a8, PIN_OUTPUT, 0) /* (E19) USB0_DRVVBUS */ + >; + }; };
&main_uart0 { @@ -337,3 +343,15 @@ ti,driver-strength-ohm = <50>; disable-wp; }; + +&usbss0 { + ti,vbus-divider; + ti,usb2-only; +}; + +&usb0 { + dr_mode = "otg"; + maximum-speed = "high-speed"; + pinctrl-names = "default"; + pinctrl-0 = <&main_usb0_pins_default>; +}; diff --git a/arch/arm/dts/k3-am642-r5-evm.dts b/arch/arm/dts/k3-am642-r5-evm.dts index 1fbf6d2c23a5..cc48fd4cb607 100644 --- a/arch/arm/dts/k3-am642-r5-evm.dts +++ b/arch/arm/dts/k3-am642-r5-evm.dts @@ -141,6 +141,12 @@ AM64X_IOPAD(0x0030, PIN_OUTPUT_PULLUP, 7) /* (L18) OSPI0_CSN1.GPIO0_12 */ >; }; + + main_usb0_pins_default: main-usb0-pins-default { + pinctrl-single,pins = < + AM64X_IOPAD(0x02a8, PIN_OUTPUT, 0) /* (E19) USB0_DRVVBUS */ + >; + }; };
&dmsc { @@ -201,4 +207,16 @@ /delete-property/ power-domains; };
+&usbss0 { + ti,vbus-divider; + ti,usb2-only; +}; + +&usb0 { + dr_mode = "otg"; + maximum-speed = "high-speed"; + pinctrl-names = "default"; + pinctrl-0 = <&main_usb0_pins_default>; +}; + #include "k3-am642-evm-u-boot.dtsi"