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authorWingMan Kwok <w-kwok2@ti.com>2013-12-09 23:25:12 +0100
committerSantosh Shilimkar <santosh.shilimkar@ti.com>2013-12-13 02:29:17 +0100
commit732079567da4942b7b4929deff8f236926d0b3eb (patch)
tree023c4d6e45bee4c191a3f995c655e4678fef42cd
parentARM: dts: keystone: Add usb phy devicetree bindings (diff)
downloadlinux-732079567da4942b7b4929deff8f236926d0b3eb.tar.xz
linux-732079567da4942b7b4929deff8f236926d0b3eb.zip
ARM: dts: keystone: Add usb devicetree bindings
Added device tree support for TI's Keystone USB driver and updated the Documentation with device tree binding information. Signed-off-by: WingMan Kwok <w-kwok2@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
-rw-r--r--Documentation/devicetree/bindings/usb/keystone-usb.txt42
-rw-r--r--arch/arm/boot/dts/k2hk-evm.dts8
-rw-r--r--arch/arm/boot/dts/keystone.dtsi19
3 files changed, 69 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/keystone-usb.txt b/Documentation/devicetree/bindings/usb/keystone-usb.txt
new file mode 100644
index 000000000000..60527d335b58
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/keystone-usb.txt
@@ -0,0 +1,42 @@
+TI Keystone Soc USB Controller
+
+DWC3 GLUE
+
+Required properties:
+ - compatible: should be "ti,keystone-dwc3".
+ - #address-cells, #size-cells : should be '1' if the device has sub-nodes
+ with 'reg' property.
+ - reg : Address and length of the register set for the USB subsystem on
+ the SOC.
+ - interrupts : The irq number of this device that is used to interrupt the
+ MPU.
+ - ranges: allows valid 1:1 translation between child's address space and
+ parent's address space.
+ - clocks: Clock IDs array as required by the controller.
+ - clock-names: names of clocks correseponding to IDs in the clock property.
+
+Sub-nodes:
+The dwc3 core should be added as subnode to Keystone DWC3 glue.
+- dwc3 :
+ The binding details of dwc3 can be found in:
+ Documentation/devicetree/bindings/usb/dwc3.txt
+
+Example:
+ usb: usb@2680000 {
+ compatible = "ti,keystone-dwc3";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x2680000 0x10000>;
+ clocks = <&clkusb>;
+ clock-names = "usb";
+ interrupts = <GIC_SPI 393 IRQ_TYPE_EDGE_RISING>;
+ ranges;
+ status = "disabled";
+
+ dwc3@2690000 {
+ compatible = "synopsys,dwc3";
+ reg = <0x2690000 0x70000>;
+ interrupts = <GIC_SPI 393 IRQ_TYPE_EDGE_RISING>;
+ usb-phy = <&usb_phy>, <&usb_phy>;
+ };
+ };
diff --git a/arch/arm/boot/dts/k2hk-evm.dts b/arch/arm/boot/dts/k2hk-evm.dts
index 15b3a95f5e3a..eaefdfef65c3 100644
--- a/arch/arm/boot/dts/k2hk-evm.dts
+++ b/arch/arm/boot/dts/k2hk-evm.dts
@@ -53,3 +53,11 @@
};
};
};
+
+&usb_phy {
+ status = "okay";
+};
+
+&usb {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/keystone.dtsi b/arch/arm/boot/dts/keystone.dtsi
index 276bea999ef4..b4202907a27b 100644
--- a/arch/arm/boot/dts/keystone.dtsi
+++ b/arch/arm/boot/dts/keystone.dtsi
@@ -189,5 +189,24 @@
reg = <0x2620738 32>;
status = "disabled";
};
+
+ usb: usb@2680000 {
+ compatible = "ti,keystone-dwc3";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0x2680000 0x10000>;
+ clocks = <&clkusb>;
+ clock-names = "usb";
+ interrupts = <GIC_SPI 393 IRQ_TYPE_EDGE_RISING>;
+ ranges;
+ status = "disabled";
+
+ dwc3@2690000 {
+ compatible = "synopsys,dwc3";
+ reg = <0x2690000 0x70000>;
+ interrupts = <GIC_SPI 393 IRQ_TYPE_EDGE_RISING>;
+ usb-phy = <&usb_phy>, <&usb_phy>;
+ };
+ };
};
};