Added device tree support for TI's Keystone USB PHY driver and updated the
Documentation with device tree binding information.
Cc: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
Signed-off-by: WingMan Kwok <w-kwok2@xxxxxx>
---
.../devicetree/bindings/usb/keystone-phy.txt | 19 +++++++++++++++++++
arch/arm/boot/dts/keystone.dtsi | 7 +++++++
2 files changed, 26 insertions(+)
create mode 100644 Documentation/devicetree/bindings/usb/keystone-phy.txt
diff --git a/Documentation/devicetree/bindings/usb/keystone-phy.txt b/Documentation/devicetree/bindings/usb/keystone-phy.txt
new file mode 100644
index 0000000..300830d
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/keystone-phy.txt
@@ -0,0 +1,19 @@
+TI Keystone USB PHY
+
+Required properties:
+ - compatible: should be "ti,keystone-usbphy".
+ - #address-cells, #size-cells : should be '1' if the device has sub-nodes
+ with 'reg' property.
+ - reg : Address and length of the usb phy control register set.
+
+The main purpose of this PHY driver is to enable the USB PHY reference clock
+gate on the Keystone SOC for both the USB2 and USB3 PHY. Otherwise it is just
+an NOP PHY driver. Hence this node is referenced as both the usb2 and usb3
+phy node in the USB Glue layer driver node.
+
+usb_phy: usb_phy@2620738 {
+ compatible = "ti,keystone-usbphy";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x2620738 32>;
+};
diff --git a/arch/arm/boot/dts/keystone.dtsi b/arch/arm/boot/dts/keystone.dtsi
index f6d6d9e..d497d9e 100644
--- a/arch/arm/boot/dts/keystone.dtsi
+++ b/arch/arm/boot/dts/keystone.dtsi
@@ -181,5 +181,12 @@
interrupts = <GIC_SPI 300 IRQ_TYPE_EDGE_RISING>;
clocks = <&clkspi>;
};
+
+ usb_phy: usb_phy@2620738 {
+ compatible = "ti,keystone-usbphy";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x2620738 32>;
+ };
};
};
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
