usb: host: add DT bindings for faraday fotg2

This adds device tree bindings for the Faraday FOTG2
dual-mode host controller.

Cc: devicetree@vger.kernel.org
Signed-off-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hans Ulli Kroll 2018-10-11 21:35:20 +02:00 committed by Greg Kroah-Hartman
parent 325b9313ec
commit ef1a2a62cc
1 changed files with 35 additions and 0 deletions

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Faraday FOTG Host controller
This OTG-capable USB host controller is found in Cortina Systems
Gemini and other SoC products.
Required properties:
- compatible: should be one of:
"faraday,fotg210"
"cortina,gemini-usb", "faraday,fotg210"
- reg: should contain one register range i.e. start and length
- interrupts: description of the interrupt line
Optional properties:
- clocks: should contain the IP block clock
- clock-names: should be "PCLK" for the IP block clock
Required properties for "cortina,gemini-usb" compatible:
- syscon: a phandle to the system controller to access PHY registers
Optional properties for "cortina,gemini-usb" compatible:
- cortina,gemini-mini-b: boolean property that indicates that a Mini-B
OTG connector is in use
- wakeup-source: see power/wakeup-source.txt
Example for Gemini:
usb@68000000 {
compatible = "cortina,gemini-usb", "faraday,fotg210";
reg = <0x68000000 0x1000>;
interrupts = <10 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cc 12>;
clock-names = "PCLK";
syscon = <&syscon>;
wakeup-source;
};