1c66ec88fSEmmanuel Vadot* NXP Semiconductors PN544 NFC Controller 2c66ec88fSEmmanuel Vadot 3c66ec88fSEmmanuel VadotRequired properties: 4c66ec88fSEmmanuel Vadot- compatible: Should be "nxp,pn544-i2c". 5c66ec88fSEmmanuel Vadot- clock-frequency: I²C work frequency. 6c66ec88fSEmmanuel Vadot- reg: address on the bus 7c66ec88fSEmmanuel Vadot- interrupts: GPIO interrupt to which the chip is connected 8c66ec88fSEmmanuel Vadot- enable-gpios: Output GPIO pin used for enabling/disabling the PN544 9c66ec88fSEmmanuel Vadot- firmware-gpios: Output GPIO pin used to enter firmware download mode 10c66ec88fSEmmanuel Vadot 11c66ec88fSEmmanuel VadotOptional SoC Specific Properties: 12c66ec88fSEmmanuel Vadot- pinctrl-names: Contains only one value - "default". 13c66ec88fSEmmanuel Vadot- pintctrl-0: Specifies the pin control groups used for this controller. 14c66ec88fSEmmanuel Vadot 15c66ec88fSEmmanuel VadotExample (for ARM-based BeagleBone with PN544 on I2C2): 16c66ec88fSEmmanuel Vadot 17c66ec88fSEmmanuel Vadot&i2c2 { 18c66ec88fSEmmanuel Vadot 19c66ec88fSEmmanuel Vadot 20c66ec88fSEmmanuel Vadot pn544: pn544@28 { 21c66ec88fSEmmanuel Vadot 22c66ec88fSEmmanuel Vadot compatible = "nxp,pn544-i2c"; 23c66ec88fSEmmanuel Vadot 24c66ec88fSEmmanuel Vadot reg = <0x28>; 25c66ec88fSEmmanuel Vadot clock-frequency = <400000>; 26c66ec88fSEmmanuel Vadot 27c66ec88fSEmmanuel Vadot interrupt-parent = <&gpio1>; 28*6be33864SEmmanuel Vadot interrupts = <17 IRQ_TYPE_LEVEL_HIGH>; 29c66ec88fSEmmanuel Vadot 30c66ec88fSEmmanuel Vadot enable-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>; 31c66ec88fSEmmanuel Vadot firmware-gpios = <&gpio3 19 GPIO_ACTIVE_HIGH>; 32c66ec88fSEmmanuel Vadot }; 33c66ec88fSEmmanuel Vadot}; 34