diff options
Diffstat (limited to 'dts/Bindings/net/nfc')
| -rw-r--r-- | dts/Bindings/net/nfc/nfcmrvl.txt | 61 | ||||
| -rw-r--r-- | dts/Bindings/net/nfc/st-nci-i2c.txt | 7 | ||||
| -rw-r--r-- | dts/Bindings/net/nfc/st-nci-spi.txt | 9 |
3 files changed, 74 insertions, 3 deletions
diff --git a/dts/Bindings/net/nfc/nfcmrvl.txt b/dts/Bindings/net/nfc/nfcmrvl.txt index 7c4a0cc370..76df917382 100644 --- a/dts/Bindings/net/nfc/nfcmrvl.txt +++ b/dts/Bindings/net/nfc/nfcmrvl.txt @@ -1,7 +1,10 @@ * Marvell International Ltd. NCI NFC Controller Required properties: -- compatible: Should be "mrvl,nfc-uart". +- compatible: Should be: + - "marvell,nfc-uart" or "mrvl,nfc-uart" for UART devices + - "marvell,nfc-i2c" for I2C devices + - "marvell,nfc-spi" for SPI devices Optional SoC specific properties: - pinctrl-names: Contains only one value - "default". @@ -13,13 +16,19 @@ Optional UART-based chip specific properties: - flow-control: Specifies that the chip is using RTS/CTS. - break-control: Specifies that the chip needs specific break management. +Optional I2C-based chip specific properties: +- i2c-int-falling: Specifies that the chip read event shall be trigged on + falling edge. +- i2c-int-rising: Specifies that the chip read event shall be trigged on + rising edge. + Example (for ARM-based BeagleBoard Black with 88W8887 on UART5): &uart5 { status = "okay"; nfcmrvluart: nfcmrvluart@5 { - compatible = "mrvl,nfc-uart"; + compatible = "marvell,nfc-uart"; reset-n-io = <&gpio3 16 0>; @@ -27,3 +36,51 @@ Example (for ARM-based BeagleBoard Black with 88W8887 on UART5): flow-control; } }; + + +Example (for ARM-based BeagleBoard Black with 88W8887 on I2C1): + +&i2c1 { + status = "okay"; + clock-frequency = <400000>; + + nfcmrvli2c0: i2c@1 { + compatible = "marvell,nfc-i2c"; + + reg = <0x8>; + + /* I2C INT configuration */ + interrupt-parent = <&gpio3>; + interrupts = <21 0>; + + /* I2C INT trigger configuration */ + i2c-int-rising; + + /* Reset IO */ + reset-n-io = <&gpio3 19 0>; + }; +}; + + +Example (for ARM-based BeagleBoard Black on SPI0): + +&spi0 { + + mrvlnfcspi0: spi@0 { + compatible = "marvell,nfc-spi"; + + reg = <0>; + + /* SPI Bus configuration */ + spi-max-frequency = <3000000>; + spi-cpha; + spi-cpol; + + /* SPI INT configuration */ + interrupt-parent = <&gpio1>; + interrupts = <17 0>; + + /* Reset IO */ + reset-n-io = <&gpio3 19 0>; + }; +}; diff --git a/dts/Bindings/net/nfc/st-nci-i2c.txt b/dts/Bindings/net/nfc/st-nci-i2c.txt index d707588ed7..263732e887 100644 --- a/dts/Bindings/net/nfc/st-nci-i2c.txt +++ b/dts/Bindings/net/nfc/st-nci-i2c.txt @@ -11,6 +11,10 @@ Required properties: 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 I2C2): @@ -29,5 +33,8 @@ Example (for ARM-based BeagleBoard xM with ST21NFCB on I2C2): interrupts = <2 IRQ_TYPE_LEVEL_HIGH>; reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>; + + ese-present; + uicc-present; }; }; diff --git a/dts/Bindings/net/nfc/st-nci-spi.txt b/dts/Bindings/net/nfc/st-nci-spi.txt index 525681b6dc..711ca85a36 100644 --- a/dts/Bindings/net/nfc/st-nci-spi.txt +++ b/dts/Bindings/net/nfc/st-nci-spi.txt @@ -2,7 +2,7 @@ Required properties: - compatible: Should be "st,st21nfcb-spi" -- spi-max-frequency: Maximum SPI frequency (<= 10000000). +- spi-max-frequency: Maximum SPI frequency (<= 4000000). - interrupt-parent: phandle for the interrupt gpio controller - interrupts: GPIO interrupt to which the chip is connected - reset-gpios: Output GPIO pin used to reset the ST21NFCB @@ -10,6 +10,10 @@ Required properties: 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): @@ -27,5 +31,8 @@ Example (for ARM-based BeagleBoard xM with ST21NFCB on SPI4): interrupts = <2 IRQ_TYPE_EDGE_RISING>; reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>; + + ese-present; + uicc-present; }; }; |