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authorIcenowy Zheng <icenowy@aosc.xyz>2017-03-25 17:50:14 +0300
committerMaxime Ripard <maxime.ripard@free-electrons.com>2017-03-27 14:45:32 +0300
commit72897fa31fcf6222a11c6ebb0bcca25628bb1f7c (patch)
tree129c841ec45489213ec88a6b7656b83f56df2401 /arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts
parent2e77b3afdde9c0ea514d3dec47633b5ef3c04b7c (diff)
downloadlinux-72897fa31fcf6222a11c6ebb0bcca25628bb1f7c.tar.xz
ARM: sun8i: h2+: enable USB OTG for Orange Pi Zero board
Orange Pi Zero board features a USB OTG port, which has a ID pin, and can be used to power up the board. However, even if the board is powered via +5V pin in GPIO/expansion headers, the VBUS in the OTG port cannot be powered up, thus it's impossible to use it in host mode with simple OTG cables. Add support for it in peripheral mode. If someone really want to use it in host mode, the mode of PHY can be switch via sysfs, then use a powered USB OTG cable or powered USB HUB to power up external USB devices. Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Diffstat (limited to 'arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts')
-rw-r--r--arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts20
1 files changed, 19 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts
index b7ca916d871d..e94f196b5931 100644
--- a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts
+++ b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts
@@ -96,6 +96,10 @@
};
};
+&ehci0 {
+ status = "okay";
+};
+
&ehci1 {
status = "okay";
};
@@ -132,6 +136,10 @@
bias-pull-up;
};
+&ohci0 {
+ status = "okay";
+};
+
&ohci1 {
status = "okay";
};
@@ -154,7 +162,17 @@
status = "disabled";
};
+&usb_otg {
+ dr_mode = "peripheral";
+ status = "okay";
+};
+
&usbphy {
- /* USB VBUS is always on */
+ /*
+ * USB Type-A port VBUS is always on. However, MicroUSB VBUS can only
+ * power up the board; when it's used as OTG port, this VBUS is
+ * always off even if the board is powered via GPIO pins.
+ */
status = "okay";
+ usb0_id_det-gpios = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
};