DT binding for the TI DA8xx/OMAP-L1x/AM17xx/AM18xx MUSB driver.
Signed-off-by: Petr Kulhavy <petr@xxxxxxxxx>
---
v1: <initial>
v2:
- using standard properties "dr_mode", "mentor,power", "mentor,num-eps", "mentor,multipoint", "mentor,ram-bits"
- using "ti," prefix instead of "da8xx," for specific property names
- no wildcards in compatibility string
v3:
- added "reg", "interrupts" and "interrupt-names" properties
- wildcards in compatibility string
v4:
- compatibility string set to "ti,da830-musb"
- "mentor,num-eps", "mentor,multipoint", "mentor,ram-bits" properties removed and hardcoded
- "ti,phy20-clkmux-cfg" renamed to "ti,phy20-clkmux-pll" and changed to boolean
- removed "ti,hwmods"
v5:
- "ti,phy20-refclock-frequency" property made mandatory
v6:
- using "ti,usb2-phy-" prefix instead of "ti,phy20-" for the specific properties
v7:
- removed the "mentor,power" property; hard coded to 500mA in the code
v8:
- "ti,usb2-phy-refclock-frequency" renamed to "ti,usb2-phy-refclock-hz" and description amended
- "ti,usb2-phy-clkmux-pll" changed to "ti,usb2-phy-clkmux-refclkin" to reflect the more common case
- USB maximum power modelled via a regulator "vbus-supply"
.../devicetree/bindings/usb/da8xx-usb.txt | 45 ++++++++++++++++++++++
1 file changed, 45 insertions(+)
create mode 100644 Documentation/devicetree/bindings/usb/da8xx-usb.txt
diff --git a/Documentation/devicetree/bindings/usb/da8xx-usb.txt b/Documentation/devicetree/bindings/usb/da8xx-usb.txt
new file mode 100644
index 0000000..a6eda5b
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/da8xx-usb.txt
@@ -0,0 +1,45 @@
+TI DA8xx MUSB
+~~~~~~~~~~~~~
+For DA8xx/OMAP-L1x/AM17xx/AM18xx platforms.
+
+Required properties:
+~~~~~~~~~~~~~~~~~~~~
+ - compatible : Should be set to "ti,da830-musb".
+
+ - reg: Offset and length of the USB controller register set.
+
+ - interrupts: The USB interrupt number.
+
+ - interrupt-names: Should be set to "mc".
+
+ - dr_mode: The USB operation mode. Should be one of "host", "peripheral" or "otg".
+
+ - vbus-supply: Phandle to a regulator providing the USB bus power.
+
+ - ti,usb2-phy-refclock-hz : Integer. Frequency in Hz of the USB 2.0 PHY reference clock,
+ either provided by the internal PLL or an external source.
+ The supported values are: 12MHz, 13MHz, 19.2MHz, 20MHz, 24MHz, 26MHz, 38.4MHz, 40MHz, 48MHz.
+
+
+Optional properties:
+~~~~~~~~~~~~~~~~~~~~
+ - ti,usb2-phy-clkmux-refclkin: Boolean. Defines the USB 2.0 PHY reference clock source.
+ If present the the external USB_REFCLKIN pin is used as a clock source, otherwise
+ the internal PLL is used.
+
+Example:
+
+ usb20: usb@1e00000 {
+ compatible = "ti,da830-musb";
+ reg = <0x00200000 0x10000>;
+ interrupt-parent = <&intc>;
+ interrupts = <58>;
+ interrupt-names = "mc";
+
+ dr_mode = "host";
+ vbus-supply = <&usb_vbus>;
+
+ ti,usb2-phy-refclock-hz = <24000000>;
+
+ status = "okay";
+ };
--
1.9.1
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