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84 lines
1.9 KiB
84 lines
1.9 KiB
* 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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