85 lines
1.9 KiB
Plaintext
85 lines
1.9 KiB
Plaintext
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* Marvell International Ltd. NCI NFC Controller
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Required properties:
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- compatible: Should be:
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- "marvell,nfc-uart" or "mrvl,nfc-uart" for UART devices
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- "marvell,nfc-i2c" for I2C devices
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- "marvell,nfc-spi" for SPI devices
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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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- reset-n-io: Output GPIO pin used to reset the chip (active low).
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- hci-muxed: Specifies that the chip is muxing NCI over HCI frames.
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Optional UART-based chip specific properties:
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- flow-control: Specifies that the chip is using RTS/CTS.
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- break-control: Specifies that the chip needs specific break management.
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Optional I2C-based chip specific properties:
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- i2c-int-falling: Specifies that the chip read event shall be trigged on
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falling edge.
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- i2c-int-rising: Specifies that the chip read event shall be trigged on
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rising edge.
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Example (for ARM-based BeagleBoard Black with 88W8887 on UART5):
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&uart5 {
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nfcmrvluart: nfcmrvluart@5 {
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compatible = "marvell,nfc-uart";
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reset-n-io = <&gpio3 16 0>;
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hci-muxed;
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flow-control;
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}
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};
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Example (for ARM-based BeagleBoard Black with 88W8887 on I2C1):
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&i2c1 {
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clock-frequency = <400000>;
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nfcmrvli2c0: i2c@1 {
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compatible = "marvell,nfc-i2c";
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reg = <0x8>;
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/* I2C INT configuration */
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interrupt-parent = <&gpio3>;
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interrupts = <21 0>;
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/* I2C INT trigger configuration */
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i2c-int-rising;
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/* Reset IO */
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reset-n-io = <&gpio3 19 0>;
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};
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};
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Example (for ARM-based BeagleBoard Black on SPI0):
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&spi0 {
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mrvlnfcspi0: spi@0 {
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compatible = "marvell,nfc-spi";
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reg = <0>;
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/* SPI Bus configuration */
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spi-max-frequency = <3000000>;
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spi-cpha;
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spi-cpol;
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/* SPI INT configuration */
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interrupt-parent = <&gpio1>;
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interrupts = <17 0>;
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/* Reset IO */
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reset-n-io = <&gpio3 19 0>;
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};
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};
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