| * NXP Semiconductors PN544 NFC Controller |
| |
| Required properties: |
| - compatible: Should be "nxp,pn544-i2c". |
| - clock-frequency: I²C work frequency. |
| - reg: address on the bus |
| - interrupts: GPIO interrupt to which the chip is connected |
| - enable-gpios: Output GPIO pin used for enabling/disabling the PN544 |
| - firmware-gpios: Output GPIO pin used to enter firmware download mode |
| |
| Optional SoC Specific Properties: |
| - pinctrl-names: Contains only one value - "default". |
| - pintctrl-0: Specifies the pin control groups used for this controller. |
| |
| Example (for ARM-based BeagleBone with PN544 on I2C2): |
| |
| &i2c2 { |
| |
| |
| pn544: pn544@28 { |
| |
| compatible = "nxp,pn544-i2c"; |
| |
| reg = <0x28>; |
| clock-frequency = <400000>; |
| |
| interrupt-parent = <&gpio1>; |
| interrupts = <17 GPIO_ACTIVE_HIGH>; |
| |
| enable-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>; |
| firmware-gpios = <&gpio3 19 GPIO_ACTIVE_HIGH>; |
| }; |
| }; |
