diff options
| author | Venu Byravarasu <vbyravarasu@nvidia.com> | 2013-01-16 03:30:19 +0000 |
|---|---|---|
| committer | Stephen Warren <swarren@nvidia.com> | 2013-01-28 11:20:05 -0700 |
| commit | e374b65c9b15c17685925e45a3f8e97c80a75e5e (patch) | |
| tree | 5c18eefccc847b2af0ee37e8aa52f4463811d54a | |
| parent | 5e18150a7b4139e15e1ed7d7c938dd91f7f12354 (diff) | |
ARM: tegra: add DT nodes for Tegra USB PHY
Add DT nodes for Tegra USB PHY along with related documentation.
Also added a phandle property to controller DT node, for referring
to connected PHY instance.
Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
| -rw-r--r-- | Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt | 1 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/usb/nvidia,tegra20-usb-phy.txt | 14 | ||||
| -rw-r--r-- | arch/arm/boot/dts/tegra20.dtsi | 22 |
3 files changed, 37 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt b/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt index 6ea765ad3dad..34c952883276 100644 --- a/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt +++ b/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt @@ -11,6 +11,7 @@ Required properties : - phy_type : Should be one of "ulpi" or "utmi". - nvidia,vbus-gpio : If present, specifies a gpio that needs to be activated for the bus to be powered. + - nvidia,phy : phandle of the PHY instance, the controller is connected to. Required properties for phy_type == ulpi: - nvidia,phy-reset-gpio : The GPIO used to reset the PHY. diff --git a/Documentation/devicetree/bindings/usb/nvidia,tegra20-usb-phy.txt b/Documentation/devicetree/bindings/usb/nvidia,tegra20-usb-phy.txt new file mode 100644 index 000000000000..84a4c12943af --- /dev/null +++ b/Documentation/devicetree/bindings/usb/nvidia,tegra20-usb-phy.txt @@ -0,0 +1,14 @@ +Tegra SOC USB PHY + +The device node for Tegra SOC USB PHY: + +Required properties : + - compatible : Should be "nvidia,tegra20-usb-phy". + - reg : Address and length of the register set for the USB PHY interface. + - phy_type : Should be one of "ulpi" or "utmi". + +Optional properties: + - nvidia,has-legacy-mode : boolean indicates whether this controller can + operate in legacy mode (as APX 2500 / 2600). In legacy mode some + registers are accessed through the APB_MISC base address instead of + the USB controller.
\ No newline at end of file diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi index 88cf8332e3f7..3d7ab220ae49 100644 --- a/arch/arm/boot/dts/tegra20.dtsi +++ b/arch/arm/boot/dts/tegra20.dtsi @@ -400,6 +400,25 @@ #size-cells = <0>; }; + phy1: usb-phy@c5000400 { + compatible = "nvidia,tegra20-usb-phy"; + reg = <0xc5000400 0x3c00>; + phy_type = "utmi"; + nvidia,has-legacy-mode; + }; + + phy2: usb-phy@c5004400 { + compatible = "nvidia,tegra20-usb-phy"; + reg = <0xc5004400 0x3c00>; + phy_type = "ulpi"; + }; + + phy3: usb-phy@c5008400 { + compatible = "nvidia,tegra20-usb-phy"; + reg = <0xc5008400 0x3C00>; + phy_type = "utmi"; + }; + usb@c5000000 { compatible = "nvidia,tegra20-ehci", "usb-ehci"; reg = <0xc5000000 0x4000>; @@ -408,6 +427,7 @@ nvidia,has-legacy-mode; clocks = <&tegra_car 22>; nvidia,needs-double-reset; + nvidia,phy = <&phy1>; status = "disabled"; }; @@ -417,6 +437,7 @@ interrupts = <0 21 0x04>; phy_type = "ulpi"; clocks = <&tegra_car 58>; + nvidia,phy = <&phy2>; status = "disabled"; }; @@ -426,6 +447,7 @@ interrupts = <0 97 0x04>; phy_type = "utmi"; clocks = <&tegra_car 59>; + nvidia,phy = <&phy3>; status = "disabled"; }; |