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-rw-r--r--arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
index 76cc970cc4aa..a8f1f8a00b51 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
@@ -235,6 +235,21 @@
pinctrl-names = "default";
};
+&gpio_ao {
+ /*
+ * WARNING: The USB Hub on the Odroid-C2 needs a reset signal
+ * to be turned high in order to be detected by the USB Controller
+ * This signal should be handled by a USB specific power sequence
+ * in order to reset the Hub when USB bus is powered down.
+ */
+ usb-hub {
+ gpio-hog;
+ gpios = <GPIOAO_4 GPIO_ACTIVE_HIGH>;
+ output-high;
+ line-name = "usb-hub-reset";
+ };
+};
+
&usb0_phy {
status = "okay";
phy-supply = <&usb_otg_pwr>;