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Current Path: /usr/src/sys/contrib/device-tree/Bindings/net/nfc

usr / src / sys / contrib / device-tree / Bindings / net / nfc /

📁 ..
📄 nfcmrvl.txt(1.85 KB)
📄 nxp-nci.txt(898 B)
📄 pn532.txt(1.2 KB)
📄 pn544.txt(874 B)
📄 s3fwrn5.txt(578 B)
📄 st-nci-i2c.txt(1004 B)
📄 st-nci-spi.txt(961 B)
📄 st21nfca.txt(940 B)
📄 st95hf.txt(1.17 KB)
📄 trf7970a.txt(1.44 KB)

Editing: pn532.txt

* 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";
        };
};

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Editing: pn532.txt

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