Add a binding document for the USB2.0 PHY found on the IMG Pistachio SoC.
Signed-off-by: Andrew Bresticker <abrestic@xxxxxxxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Pawel Moll <pawel.moll@xxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Ian Campbell <ijc+devicetree@xxxxxxxxxxxxxx>
Cc: Kumar Gala <galak@xxxxxxxxxxxxxx>
---
.../devicetree/bindings/phy/pistachio-usb-phy.txt | 29 ++++++++++++++++++++++
include/dt-bindings/phy/phy-pistachio-usb.h | 16 ++++++++++++
2 files changed, 45 insertions(+)
create mode 100644 Documentation/devicetree/bindings/phy/pistachio-usb-phy.txt
create mode 100644 include/dt-bindings/phy/phy-pistachio-usb.h
diff --git a/Documentation/devicetree/bindings/phy/pistachio-usb-phy.txt b/Documentation/devicetree/bindings/phy/pistachio-usb-phy.txt
new file mode 100644
index 0000000..afbc7e2
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/pistachio-usb-phy.txt
@@ -0,0 +1,29 @@
+IMG Pistachio USB PHY
+=====================
+
+Required properties:
+--------------------
+ - compatible: Must be "img,pistachio-usb-phy".
+ - #phy-cells: Must be 0. See ./phy-bindings.txt for details.
+ - clocks: Must contain an entry for each entry in clock-names.
+ See ../clock/clock-bindings.txt for details.
+ - clock-names: Must include "usb_phy".
+ - img,cr-top: Must constain a phandle to the CR_TOP syscon node.
+ - img,refclk: Indicates the reference clock source for the USB PHY.
+ See <dt-bindings/phy/phy-pistachio-usb.h> for a list of valid values.
+
+Optional properties:
+--------------------
+ - phy-supply: USB VBUS supply. Must supply 5.0V.
+
+Example:
+--------
+usb_phy: usb-phy {
+ compatible = "img,pistachio-usb-phy";
+ clocks = <&clk_core CLK_USB_PHY>;
+ clock-names = "usb_phy";
+ phy-supply = <&usb_vbus>;
+ img,refclk = <REFCLK_CLK_CORE>;
+ img,cr-top = <&cr_top>;
+ #phy-cells = <0>;
+};
diff --git a/include/dt-bindings/phy/phy-pistachio-usb.h b/include/dt-bindings/phy/phy-pistachio-usb.h
new file mode 100644
index 0000000..d1877aa
--- /dev/null
+++ b/include/dt-bindings/phy/phy-pistachio-usb.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2015 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#ifndef _DT_BINDINGS_PHY_PISTACHIO
+#define _DT_BINDINGS_PHY_PISTACHIO
+
+#define REFCLK_XO_CRYSTAL 0x0
+#define REFCLK_X0_EXT_CLK 0x1
+#define REFCLK_CLK_CORE 0x2
+
+#endif /* _DT_BINDINGS_PHY_PISTACHIO */
--
2.2.0.rc0.207.ga3a616c
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