diff options
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/net/nfc')
| -rw-r--r-- | kernel/Documentation/devicetree/bindings/net/nfc/nfcmrvl.txt | 86 | ||||
| -rw-r--r-- | kernel/Documentation/devicetree/bindings/net/nfc/s3fwrn5.txt | 27 | ||||
| -rw-r--r-- | kernel/Documentation/devicetree/bindings/net/nfc/st-nci-i2c.txt (renamed from kernel/Documentation/devicetree/bindings/net/nfc/st21nfcb.txt) | 11 | ||||
| -rw-r--r-- | kernel/Documentation/devicetree/bindings/net/nfc/st-nci-spi.txt | 38 | ||||
| -rw-r--r-- | kernel/Documentation/devicetree/bindings/net/nfc/trf7970a.txt | 4 |
5 files changed, 164 insertions, 2 deletions
diff --git a/kernel/Documentation/devicetree/bindings/net/nfc/nfcmrvl.txt b/kernel/Documentation/devicetree/bindings/net/nfc/nfcmrvl.txt new file mode 100644 index 000000000..76df91738 --- /dev/null +++ b/kernel/Documentation/devicetree/bindings/net/nfc/nfcmrvl.txt @@ -0,0 +1,86 @@ +* Marvell International Ltd. NCI NFC Controller + +Required properties: +- 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". +- pintctrl-0: Specifies the pin control groups used for this controller. +- reset-n-io: Output GPIO pin used to reset the chip (active low). +- hci-muxed: Specifies that the chip is muxing NCI over HCI frames. + +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 = "marvell,nfc-uart"; + + reset-n-io = <&gpio3 16 0>; + + hci-muxed; + 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/kernel/Documentation/devicetree/bindings/net/nfc/s3fwrn5.txt b/kernel/Documentation/devicetree/bindings/net/nfc/s3fwrn5.txt new file mode 100644 index 000000000..fb1e75fac --- /dev/null +++ b/kernel/Documentation/devicetree/bindings/net/nfc/s3fwrn5.txt @@ -0,0 +1,27 @@ +* Samsung S3FWRN5 NCI NFC Controller + +Required properties: +- compatible: Should be "samsung,s3fwrn5-i2c". +- reg: address on the bus +- interrupt-parent: phandle for the interrupt gpio controller +- interrupts: GPIO interrupt to which the chip is connected +- s3fwrn5,en-gpios: Output GPIO pin used for enabling/disabling the chip +- s3fwrn5,fw-gpios: Output GPIO pin used to enter firmware mode and + sleep/wakeup control + +Example: + +&hsi2c_4 { + status = "okay"; + s3fwrn5@27 { + compatible = "samsung,s3fwrn5-i2c"; + + reg = <0x27>; + + interrupt-parent = <&gpa1>; + interrupts = <3 0 0>; + + s3fwrn5,en-gpios = <&gpf1 4 0>; + s3fwrn5,fw-gpios = <&gpj0 2 0>; + }; +}; diff --git a/kernel/Documentation/devicetree/bindings/net/nfc/st21nfcb.txt b/kernel/Documentation/devicetree/bindings/net/nfc/st-nci-i2c.txt index bb237072d..263732e88 100644 --- a/kernel/Documentation/devicetree/bindings/net/nfc/st21nfcb.txt +++ b/kernel/Documentation/devicetree/bindings/net/nfc/st-nci-i2c.txt @@ -1,7 +1,7 @@ -* STMicroelectronics SAS. ST21NFCB NFC Controller +* STMicroelectronics SAS. ST NCI NFC Controller Required properties: -- compatible: Should be "st,st21nfcb-i2c". +- compatible: Should be "st,st21nfcb-i2c" or "st,st21nfcc-i2c". - clock-frequency: I²C work frequency. - reg: address on the bus - interrupt-parent: phandle for the interrupt gpio controller @@ -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/kernel/Documentation/devicetree/bindings/net/nfc/st-nci-spi.txt b/kernel/Documentation/devicetree/bindings/net/nfc/st-nci-spi.txt new file mode 100644 index 000000000..711ca85a3 --- /dev/null +++ b/kernel/Documentation/devicetree/bindings/net/nfc/st-nci-spi.txt @@ -0,0 +1,38 @@ +* STMicroelectronics SAS. ST NCI NFC Controller + +Required properties: +- compatible: Should be "st,st21nfcb-spi" +- 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 + +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 { + + status = "okay"; + + 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; + }; +}; diff --git a/kernel/Documentation/devicetree/bindings/net/nfc/trf7970a.txt b/kernel/Documentation/devicetree/bindings/net/nfc/trf7970a.txt index 7c89ca290..32b35a07a 100644 --- a/kernel/Documentation/devicetree/bindings/net/nfc/trf7970a.txt +++ b/kernel/Documentation/devicetree/bindings/net/nfc/trf7970a.txt @@ -18,6 +18,9 @@ Optional SoC Specific Properties: "IRQ Status Read" erratum. - en2-rf-quirk: Specify that the trf7970a being used has the "EN2 RF" erratum. +- t5t-rmb-extra-byte-quirk: Specify that the trf7970a has the erratum + where an extra byte is returned by Read Multiple Block commands issued + to Type 5 tags. Example (for ARM-based BeagleBone with TRF7970A on SPI1): @@ -39,6 +42,7 @@ Example (for ARM-based BeagleBone with TRF7970A on SPI1): autosuspend-delay = <30000>; irq-status-read-quirk; en2-rf-quirk; + t5t-rmb-extra-byte-quirk; status = "okay"; }; }; |