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66 lines
2.2 KiB
Diff
66 lines
2.2 KiB
Diff
6 years ago
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From 3699f119ff8da021fe7a1759e98e38ca88fa6766 Mon Sep 17 00:00:00 2001
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From: Hans Ulli Kroll <ulli.kroll@googlemail.com>
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Date: Wed, 8 Feb 2017 21:00:09 +0100
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Subject: [PATCH 27/31] usb: host: add DT bindings for faraday fotg2
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This adds device tree bindings for the Faraday FOTG2
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dual-mode host controller.
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Cc: devicetree@vger.kernel.org
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Signed-off-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
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Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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---
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ChangeLog v1->v3:
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- Change compatible to "faraday,fotg210" as the name of the
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hardware block.
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- Add an elaborate SoC-specific compatible string for the
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Cortina Systems Gemini so that SoC-specific features can
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be enabled.
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- Add cortina,gemini-mini-b to indicate a Gemini PHY with
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a Mini-B adapter connected.
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- Indicated that the Gemini version can handle "wakeup-source".
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- Add optional IP block clock.
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---
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.../devicetree/bindings/usb/faraday,fotg210.txt | 35 ++++++++++++++++++++++
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1 file changed, 35 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/usb/faraday,fotg210.txt
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/usb/faraday,fotg210.txt
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@@ -0,0 +1,35 @@
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+Faraday FOTG Host controller
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+
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+This OTG-capable USB host controller is found in Cortina Systems
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+Gemini and other SoC products.
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+
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+Required properties:
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+- compatible: should be one of:
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+ "faraday,fotg210"
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+ "cortina,gemini-usb", "faraday,fotg210"
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+- reg: should contain one register range i.e. start and length
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+- interrupts: description of the interrupt line
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+
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+Optional properties:
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+- clocks: should contain the IP block clock
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+- clock-names: should be "PCLK" for the IP block clock
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+
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+Required properties for "cortina,gemini-usb" compatible:
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+- syscon: a phandle to the system controller to access PHY registers
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+
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+Optional properties for "cortina,gemini-usb" compatible:
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+- cortina,gemini-mini-b: boolean property that indicates that a Mini-B
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+ OTH connector is in use
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+- wakeup-source: see power/wakeup-source.txt
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+
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+Example for Gemini:
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+
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+usb@68000000 {
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+ compatible = "cortina,gemini-usb", "faraday,fotg210";
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+ reg = <0x68000000 0x1000>;
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+ interrupts = <10 IRQ_TYPE_LEVEL_HIGH>;
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+ clocks = <&cc 12>;
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+ clock-names = "PCLK";
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+ syscon = <&syscon>;
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+ wakeup-source;
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+};
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