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

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
...@@ -11,6 +11,7 @@ Required properties : ...@@ -11,6 +11,7 @@ Required properties :
- phy_type : Should be one of "ulpi" or "utmi". - phy_type : Should be one of "ulpi" or "utmi".
- nvidia,vbus-gpio : If present, specifies a gpio that needs to be - nvidia,vbus-gpio : If present, specifies a gpio that needs to be
activated for the bus to be powered. 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: Required properties for phy_type == ulpi:
- nvidia,phy-reset-gpio : The GPIO used to reset the PHY. - nvidia,phy-reset-gpio : The GPIO used to reset the PHY.
......
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
...@@ -400,6 +400,25 @@ memory-controller@7000f400 { ...@@ -400,6 +400,25 @@ memory-controller@7000f400 {
#size-cells = <0>; #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 { usb@c5000000 {
compatible = "nvidia,tegra20-ehci", "usb-ehci"; compatible = "nvidia,tegra20-ehci", "usb-ehci";
reg = <0xc5000000 0x4000>; reg = <0xc5000000 0x4000>;
...@@ -408,6 +427,7 @@ usb@c5000000 { ...@@ -408,6 +427,7 @@ usb@c5000000 {
nvidia,has-legacy-mode; nvidia,has-legacy-mode;
clocks = <&tegra_car 22>; clocks = <&tegra_car 22>;
nvidia,needs-double-reset; nvidia,needs-double-reset;
nvidia,phy = <&phy1>;
status = "disabled"; status = "disabled";
}; };
...@@ -417,6 +437,7 @@ usb@c5004000 { ...@@ -417,6 +437,7 @@ usb@c5004000 {
interrupts = <0 21 0x04>; interrupts = <0 21 0x04>;
phy_type = "ulpi"; phy_type = "ulpi";
clocks = <&tegra_car 58>; clocks = <&tegra_car 58>;
nvidia,phy = <&phy2>;
status = "disabled"; status = "disabled";
}; };
...@@ -426,6 +447,7 @@ usb@c5008000 { ...@@ -426,6 +447,7 @@ usb@c5008000 {
interrupts = <0 97 0x04>; interrupts = <0 97 0x04>;
phy_type = "utmi"; phy_type = "utmi";
clocks = <&tegra_car 59>; clocks = <&tegra_car 59>;
nvidia,phy = <&phy3>;
status = "disabled"; status = "disabled";
}; };
......
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