1*CC2520 IEEE 802.15.4 Compatible Radio* 2 3Required properties: 4 - compatible: should be "ti,cc2520" 5 - spi-max-frequency: maximal bus speed (8000000), should be set to 4000000 depends 6 sync or async operation mode 7 - reg: the chipselect index 8 - pinctrl-0: pin control group to be used for this controller. 9 - pinctrl-names: must contain a "default" entry. 10 - fifo-gpio: GPIO spec for the FIFO pin 11 - fifop-gpio: GPIO spec for the FIFOP pin 12 - sfd-gpio: GPIO spec for the SFD pin 13 - cca-gpio: GPIO spec for the CCA pin 14 - vreg-gpio: GPIO spec for the VREG pin 15 - reset-gpio: GPIO spec for the RESET pin 16Optional properties: 17 - amplified: include if the CC2520 is connected to a CC2591 amplifier 18 19Example: 20 cc2520@0 { 21 compatible = "ti,cc2520"; 22 reg = <0>; 23 spi-max-frequency = <4000000>; 24 amplified; 25 pinctrl-names = "default"; 26 pinctrl-0 = <&cc2520_cape_pins>; 27 fifo-gpio = <&gpio1 18 0>; 28 fifop-gpio = <&gpio1 19 0>; 29 sfd-gpio = <&gpio1 13 0>; 30 cca-gpio = <&gpio1 16 0>; 31 vreg-gpio = <&gpio0 31 0>; 32 reset-gpio = <&gpio1 12 0>; 33 }; 34