| * STMicroelectronics SAS. ST NCI NFC Controller |
| |
| Required properties: |
| - compatible: Should be "st,st21nfcb-spi" |
| - spi-max-frequency: Maximum SPI frequency (<= 4000000). |
| - interrupts: GPIO interrupt to which the chip is connected |
| - reset-gpios: Output GPIO pin used to reset the ST21NFCB |
| |
| Optional SoC Specific Properties: |
| - pinctrl-names: Contains only one value - "default". |
| - pintctrl-0: Specifies the pin control groups used for this controller. |
| - ese-present: Specifies that an ese is physically connected to the nfc |
| controller. |
| - uicc-present: Specifies that the uicc swp signal can be physically |
| connected to the nfc controller. |
| |
| Example (for ARM-based BeagleBoard xM with ST21NFCB on SPI4): |
| |
| &mcspi4 { |
| |
| |
| st21nfcb: st21nfcb@0 { |
| |
| compatible = "st,st21nfcb-spi"; |
| |
| clock-frequency = <4000000>; |
| |
| interrupt-parent = <&gpio5>; |
| interrupts = <2 IRQ_TYPE_EDGE_RISING>; |
| |
| reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>; |
| |
| ese-present; |
| uicc-present; |
| }; |
| }; |
