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dt-bindings: phy: Add Amlogic G12A USB2 PHY Bindings

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Add the Amlogic G12A Family USB2 OTG PHY Bindings

The PHY can work in host or peripheral modes depending on it's position.
Configuration of the mode is part of the USBCTRL registers which are
outside of the PHY registers.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Neil Armstrong 2019-03-25 10:39:36 +01:00 committed by Kishon Vijay Abraham I
parent 4dcddbb38b
commit 7609db4e84
1 changed files with 22 additions and 0 deletions
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Documentation/devicetree/bindings/phy/meson-g12a-usb2-phy.txt Normal file
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* Amlogic G12A USB2 PHY binding
Required properties:
- compatible: Should be "amlogic,meson-g12a-usb2-phy"
- reg: The base address and length of the registers
- #phys-cells: must be 0 (see phy-bindings.txt in this directory)
- clocks: a phandle to the clock of this PHY
- clock-names: must be "xtal"
- resets: a phandle to the reset line of this PHY
- reset-names: must be "phy"
- phy-supply: see phy-bindings.txt in this directory
Example:
usb2_phy0: phy@36000 {
compatible = "amlogic,g12a-usb2-phy";
reg = <0x0 0x36000 0x0 0x2000>;
clocks = <&xtal>;
clock-names = "xtal";
resets = <&reset RESET_USB_PHY21>;
reset-names = "phy";
#phy-cells = <0>;
};