From 732079567da4942b7b4929deff8f236926d0b3eb Mon Sep 17 00:00:00 2001 From: WingMan Kwok Date: Mon, 9 Dec 2013 17:25:12 -0500 Subject: [PATCH] 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 Signed-off-by: Santosh Shilimkar --- .../devicetree/bindings/usb/keystone-usb.txt | 42 +++++++++++++++++++ arch/arm/boot/dts/k2hk-evm.dts | 8 ++++ arch/arm/boot/dts/keystone.dtsi | 19 +++++++++ 3 files changed, 69 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/keystone-usb.txt 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 = ; + ranges; + status = "disabled"; + + dwc3@2690000 { + compatible = "synopsys,dwc3"; + reg = <0x2690000 0x70000>; + interrupts = ; + 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 = ; + ranges; + status = "disabled"; + + dwc3@2690000 { + compatible = "synopsys,dwc3"; + reg = <0x2690000 0x70000>; + interrupts = ; + usb-phy = <&usb_phy>, <&usb_phy>; + }; + }; }; }; -- 2.39.5