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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 depends6 sync or async operation mode7 - reg: the chipselect index8 - 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 pin11 - fifop-gpio: GPIO spec for the FIFOP pin12 - sfd-gpio: GPIO spec for the SFD pin13 - cca-gpio: GPIO spec for the CCA pin14 - vreg-gpio: GPIO spec for the VREG pin15 - reset-gpio: GPIO spec for the RESET pin16Optional properties:17 - amplified: include if the CC2520 is connected to a CC2591 amplifier18 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