st-nci-spi.txt

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    1 * STMicroelectronics SAS. ST NCI NFC Controller
    2 
    3 Required properties:
    4 - compatible: Should be "st,st21nfcb-spi"
    5 - spi-max-frequency: Maximum SPI frequency (<= 4000000).
    6 - interrupts: GPIO interrupt to which the chip is connected
    7 - reset-gpios: Output GPIO pin used to reset the ST21NFCB
    8 
    9 Optional SoC Specific Properties:
   10 - pinctrl-names: Contains only one value - "default".
   11 - pintctrl-0: Specifies the pin control groups used for this controller.
   12 - ese-present: Specifies that an ese is physically connected to the nfc
   13 controller.
   14 - uicc-present: Specifies that the uicc swp signal can be physically
   15 connected to the nfc controller.
   16 
   17 Example (for ARM-based BeagleBoard xM with ST21NFCB on SPI4):
   18 
   19 &mcspi4 {
   20 
   21 
   22         st21nfcb: st21nfcb@0 {
   23 
   24                 compatible = "st,st21nfcb-spi";
   25 
   26                 clock-frequency = <4000000>;
   27 
   28                 interrupt-parent = <&gpio5>;
   29                 interrupts = <2 IRQ_TYPE_EDGE_RISING>;
   30 
   31                 reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
   32 
   33                 ese-present;
   34                 uicc-present;
   35         };
   36 };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/net/nfc/st-nci-spi.txt

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/net/nfc/st-nci-spi.txt