Add documentation how devicetree can be used to configure ath9k based
devices.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
---
.../devicetree/bindings/net/wireless/ath,ath9k.txt | 40 ++++++++++++++++++++++
1 file changed, 40 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/wireless/ath,ath9k.txt
diff --git a/Documentation/devicetree/bindings/net/wireless/ath,ath9k.txt b/Documentation/devicetree/bindings/net/wireless/ath,ath9k.txt
new file mode 100644
index 0000000..d6f5471
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/wireless/ath,ath9k.txt
@@ -0,0 +1,40 @@
+* Atheros ath9k wireless devices
+
+This node provides properties for configuring the ath9k wireless device. The
+node is expected to be specified as a child node of the PCI controller to
+which the wireless chip is connected.
+
+Required properties:
+- compatible: Should be "ath,ath9k"
+
+Optional properties:
+- reg: Address and length of the register set for the device.
+- ath,gpio-mask: The GPIO mask
+- ath,gpio-val: The GPIO value
+- ath,led-pin: The GPIO number to which the LED is connected
+- ath,led-active-high: The LED is active when the GPIO is HIGH
+- ath,clk-25mhz: Defines that at 25MHz clock is used
+- ath,eeprom-name: The name of the file which contains the EEPROM data (which
+ will be loaded via request_firmware)
+- ath,check-eeprom-endianness: Allow checking the EEPROM endianness and
+ swapping of the EEPROM data if required
+- ath,disable-2ghz: Disables the 2.4GHz band, even if enabled in the EEPROM
+- ath,disable-5ghz: Disables the 5GHz band, even if enabled in the EEPROM
+
+In this example, the node is defined as child node of the PCI controller.
+
+pci {
+ pcie@0 {
+ reg = <0 0 0 0 0>;
+ #interrupt-cells = <1>;
+ #size-cells = <2>;
+ #address-cells = <3>;
+ device_type = "pci";
+
+ ath9k@0,0 {
+ reg = <0 0 0 0 0>;
+ device_type = "pci";
+ ath,disable-5ghz;
+ };
+ };
+};
--
2.9.0
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