devicetree: add device tree bindings for cc2520 driver

DT bindings for cc2520 radio driver

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 29 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/net/ieee802154/cc2520.txt b/Documentation/devicetree/bindings/net/ieee802154/cc2520.txt
new file mode 100644
index 000000000000..0071883c08d8
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/ieee802154/cc2520.txt
@@ -0,0 +1,29 @@
+*CC2520 IEEE 802.15.4 Compatible Radio*
+
+Required properties:
+        - compatible:           should be "ti,cc2520"
+        - spi-max-frequency:    maximal bus speed (8000000), should be set to 4000000 depends
+                                sync or async operation mode
+        - reg:                  the chipselect index
+        - pinctrl-0:            pin control group to be used for this controller.
+        - pinctrl-names:        must contain a "default" entry.
+        - fifo-gpio:            GPIO spec for the FIFO pin
+        - fifop-gpio:           GPIO spec for the FIFOP pin
+        - sfd-gpio:             GPIO spec for the SFD pin
+        - cca-gpio:             GPIO spec for the CCA pin
+        - vreg-gpio:            GPIO spec for the VREG pin
+        - reset-gpio:           GPIO spec for the RESET pin
+Example:
+        cc2520@0 {
+                compatible = "ti,cc2520";
+                reg = <0>;
+                spi-max-frequency = <4000000>;
+                pinctrl-names = "default";
+                pinctrl-0 = <&cc2520_cape_pins>;
+                fifo-gpio = <&gpio1 18 0>;
+                fifop-gpio = <&gpio1 19 0>;
+                sfd-gpio = <&gpio1 13 0>;
+                cca-gpio = <&gpio1 16 0>;
+                vreg-gpio = <&gpio0 31 0>;
+                reset-gpio = <&gpio1 12 0>;
+        };