40 lines
1.0 KiB
Plaintext
40 lines
1.0 KiB
Plaintext
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* STMicroelectronics SAS. ST NCI NFC Controller
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Required properties:
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- compatible: Should be "st,st21nfcb-i2c" or "st,st21nfcc-i2c".
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- clock-frequency: I²C work frequency.
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- reg: address on the bus
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- interrupt-parent: phandle for the interrupt gpio controller
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- interrupts: GPIO interrupt to which the chip is connected
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- reset-gpios: Output GPIO pin used to reset the ST21NFCB
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Optional SoC Specific Properties:
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- pinctrl-names: Contains only one value - "default".
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- pintctrl-0: Specifies the pin control groups used for this controller.
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- ese-present: Specifies that an ese is physically connected to the nfc
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controller.
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- uicc-present: Specifies that the uicc swp signal can be physically
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connected to the nfc controller.
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Example (for ARM-based BeagleBoard xM with ST21NFCB on I2C2):
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&i2c2 {
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st21nfcb: st21nfcb@8 {
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compatible = "st,st21nfcb-i2c";
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reg = <0x08>;
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clock-frequency = <400000>;
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interrupt-parent = <&gpio5>;
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interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
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reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
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ese-present;
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uicc-present;
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};
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};
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