[PATCH v4 3/3] arm64: allwinner: a64: bananapi-m64: add usb otg

[Jagan Teki]

Add usb otg support for bananapi-m64 board,
- USB-ID connected with PH9
- USB-DRVVBUS controlled by N_VBUSEN pin from PMIC

Signed-off-by: Jagan Teki <ja...@amarulasolutions.com>
---
Changes for v4:
- rebase on master
- tested otg host mode.
Changes for v3:
- Move the position of reg_drivevbus as per binding documentation.
Changes for v2:
- add drvvbus regulator
- add N_VBUSEN pin

 .../boot/dts/allwinner/sun50i-a64-bananapi-m64.dts  | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts 
b/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts
index a697567..26e8534 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts
@@ -86,6 +86,10 @@
        };
 };
 
+&ehci0 {
+       status = "okay";
+};
+
 &ehci1 {
        status = "okay";
 };
@@ -156,6 +160,10 @@
        status = "okay";
 };
 
+&ohci0 {
+       status = "okay";
+};
+
 &ohci1 {
        status = "okay";
 };
@@ -168,6 +176,7 @@
                reg = <0x3a3>;
                interrupt-parent = <&r_intc>;
                interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+               x-powers,drive-vbus-en; /* set N_VBUSEN as output pin */
        };
 };
 
@@ -283,6 +292,11 @@
        regulator-name = "vcc-rtc";
 };
 
+&reg_drivevbus {
+       regulator-name = "usb0-vbus";
+       status = "okay";
+};
+
 &uart0 {
        pinctrl-names = "default";
        pinctrl-0 = <&uart0_pins_a>;
@@ -295,6 +309,13 @@
        status = "okay";
 };
 
+&usb_otg {
+       dr_mode = "otg";
+       status = "okay";
+};
+
 &usbphy {
+       usb0_id_det-gpios = <&pio 7 9 GPIO_ACTIVE_HIGH>; /* PH9 */
+       usb0_vbus-supply = <&reg_drivevbus>;
        status = "okay";
 };
-- 
2.7.4