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arm: dts: k3-am642-*-evm: Add USB support

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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>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210604163043.12811-7-a-govindraju@ti.com
This commit is contained in:
Aswath Govindraju 2021-06-04 22:00:36 +05:30 committed by Lokesh Vutla
parent cdb738411f
commit 7803a5bda9
2 changed files with 36 additions and 0 deletions
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18
arch/arm/dts/k3-am642-evm.dts
View file

@ -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>;
};

18
arch/arm/dts/k3-am642-r5-evm.dts
View file

@ -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"