1* NXP Semiconductors PN532 NFC Controller 2 3Required properties: 4- compatible: Should be "nxp,pn532-i2c" or "nxp,pn533-i2c". 5- clock-frequency: I²C work frequency. 6- reg: address on the bus 7- interrupts: GPIO interrupt to which the chip is connected 8 9Optional SoC Specific Properties: 10- pinctrl-names: Contains only one value - "default". 11- pintctrl-0: Specifies the pin control groups used for this controller. 12 13Example (for ARM-based BeagleBone with PN532 on I2C2): 14 15&i2c2 { 16 17 18 pn532: pn532@24 { 19 20 compatible = "nxp,pn532-i2c"; 21 22 reg = <0x24>; 23 clock-frequency = <400000>; 24 25 interrupt-parent = <&gpio1>; 26 interrupts = <17 IRQ_TYPE_EDGE_FALLING>; 27 28 }; 29}; 30