| * NXP Semiconductors PN532 NFC Controller |
| |
| Required properties: |
| - compatible: Should be |
| - "nxp,pn532" Place a node with this inside the devicetree node of the bus |
| where the NFC chip is connected to. |
| Currently the kernel has phy bindings for uart and i2c. |
| - "nxp,pn532-i2c" (DEPRECATED) only works for the i2c binding. |
| - "nxp,pn533-i2c" (DEPRECATED) only works for the i2c binding. |
| |
| Required properties if connected on i2c: |
| - clock-frequency: I²C work frequency. |
| - reg: for the I²C bus address. This is fixed at 0x24 for the PN532. |
| - interrupts: GPIO interrupt to which the chip is connected |
| |
| 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 PN532 on I2C2): |
| |
| &i2c2 { |
| |
| |
| pn532: nfc@24 { |
| |
| compatible = "nxp,pn532"; |
| |
| reg = <0x24>; |
| clock-frequency = <400000>; |
| |
| interrupt-parent = <&gpio1>; |
| interrupts = <17 IRQ_TYPE_EDGE_FALLING>; |
| |
| }; |
| }; |
| |
| Example (for PN532 connected via uart): |
| |
| uart4: serial@49042000 { |
| compatible = "ti,omap3-uart"; |
| |
| pn532: nfc { |
| compatible = "nxp,pn532"; |
| }; |
| }; |
