49 lines
1.3 KiB
Plaintext
49 lines
1.3 KiB
Plaintext
|
* STMicroelectronics : NFC Transceiver ST95HF
|
||
|
|
|
||
|
|
ST NFC Transceiver is required to attach with SPI bus.
|
||
|
|
ST95HF node should be defined in DT as SPI slave device of SPI
|
||
|
|
master with which ST95HF transceiver is physically connected.
|
||
|
|
The properties defined below are required to be the part of DT
|
||
|
|
to include ST95HF transceiver into the platform.
|
||
|
|
|
||
|
|
Required properties:
|
||
|
|
===================
|
||
|
|
- reg: Address of SPI slave "ST95HF transceiver" on SPI master bus.
|
||
|
|
|
||
|
|
- compatible: should be "st,st95hf" for ST95HF NFC transceiver
|
||
|
|
|
||
|
|
- spi-max-frequency: Max. operating SPI frequency for ST95HF
|
||
|
|
transceiver.
|
||
|
|
|
||
|
|
- enable-gpio: GPIO line to enable ST95HF transceiver.
|
||
|
|
|
||
|
|
- interrupt-parent : Standard way to specify the controller to which
|
||
|
|
ST95HF transceiver's interrupt is routed.
|
||
|
|
|
||
|
|
- interrupts : Standard way to define ST95HF transceiver's out
|
||
|
|
interrupt.
|
||
|
|
|
||
|
|
Optional property:
|
||
|
|
=================
|
||
|
|
- st95hfvin-supply : This is an optional property. It contains a
|
||
|
|
phandle to ST95HF transceiver's regulator supply node in DT.
|
||
|
|
|
||
|
|
Example:
|
||
|
|
=======
|
||
|
|
spi@9840000 {
|
||
|
|
reg = <0x9840000 0x110>;
|
||
|
|
#address-cells = <1>;
|
||
|
|
#size-cells = <0>;
|
||
|
|
cs-gpios = <&pio0 4>;
|
||
|
|
|
||
|
|
st95hf@0{
|
||
|
|
reg = <0>;
|
||
|
|
compatible = "st,st95hf";
|
||
|
|
spi-max-frequency = <1000000>;
|
||
|
|
enable-gpio = <&pio4 0>;
|
||
|
|
interrupt-parent = <&pio0>;
|
||
|
|
interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
|
||
|
|
};
|
||
|
|
|
||
|
|
};
|