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devicetree: add device tree bindings for cc2520 driver

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DT bindings for cc2520 radio driver

Signed-off-by: Varka Bhadram <varkab@cdac.in>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Varka Bhadram 2014-06-20 17:47:17 +05:30 committed by David S. Miller
parent b5bf62248a
commit 1952e8e0c5
1 changed files with 29 additions and 0 deletions
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29
Documentation/devicetree/bindings/net/ieee802154/cc2520.txt Normal file
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*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>;
};