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-govindr...@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"
--
2.17.1
