Commit e374b65c authored by Venu Byravarasu's avatar Venu Byravarasu Committed by Stephen Warren
Browse files

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: default avatarVenu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: default avatarStephen Warren <swarren@nvidia.com>
parent 5e18150a
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+1 −0
Original line number Diff line number Diff line
@@ -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.
+14 −0
Original line number Diff line number Diff line
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.
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+22 −0
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@@ -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";
	};