diff options
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/bus/bcma.txt | 32 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/net/nfc/st21nfcb.txt | 2 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/net/nfc/trf7970a.txt | 8 |
3 files changed, 41 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/bus/bcma.txt b/Documentation/devicetree/bindings/bus/bcma.txt new file mode 100644 index 000000000000..62a48348ac15 --- /dev/null +++ b/Documentation/devicetree/bindings/bus/bcma.txt @@ -0,0 +1,32 @@ +Driver for ARM AXI Bus with Broadcom Plugins (bcma) + +Required properties: + +- compatible : brcm,bus-axi + +- reg : iomem address range of chipcommon core + +The cores on the AXI bus are automatically detected by bcma with the +memory ranges they are using and they get registered afterwards. + +The top-level axi bus may contain children representing attached cores +(devices). This is needed since some hardware details can't be auto +detected (e.g. IRQ numbers). Also some of the cores may be responsible +for extra things, e.g. ChipCommon providing access to the GPIO chip. + +Example: + + axi@18000000 { + compatible = "brcm,bus-axi"; + reg = <0x18000000 0x1000>; + ranges = <0x00000000 0x18000000 0x00100000>; + #address-cells = <1>; + #size-cells = <1>; + + chipcommon { + reg = <0x00000000 0x1000>; + + gpio-controller; + #gpio-cells = <2>; + }; + }; diff --git a/Documentation/devicetree/bindings/net/nfc/st21nfcb.txt b/Documentation/devicetree/bindings/net/nfc/st21nfcb.txt index 3b58ae480344..9005608cbbd1 100644 --- a/Documentation/devicetree/bindings/net/nfc/st21nfcb.txt +++ b/Documentation/devicetree/bindings/net/nfc/st21nfcb.txt @@ -26,7 +26,7 @@ Example (for ARM-based BeagleBoard xM with ST21NFCB on I2C2): clock-frequency = <400000>; interrupt-parent = <&gpio5>; - interrupts = <2 IRQ_TYPE_LEVEL_LOW>; + interrupts = <2 IRQ_TYPE_LEVEL_HIGH>; reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>; }; diff --git a/Documentation/devicetree/bindings/net/nfc/trf7970a.txt b/Documentation/devicetree/bindings/net/nfc/trf7970a.txt index 1e436133685f..7c89ca290ced 100644 --- a/Documentation/devicetree/bindings/net/nfc/trf7970a.txt +++ b/Documentation/devicetree/bindings/net/nfc/trf7970a.txt @@ -13,6 +13,11 @@ Optional SoC Specific Properties: - pinctrl-names: Contains only one value - "default". - pintctrl-0: Specifies the pin control groups used for this controller. - autosuspend-delay: Specify autosuspend delay in milliseconds. +- vin-voltage-override: Specify voltage of VIN pin in microvolts. +- irq-status-read-quirk: Specify that the trf7970a being used has the + "IRQ Status Read" erratum. +- en2-rf-quirk: Specify that the trf7970a being used has the "EN2 RF" + erratum. Example (for ARM-based BeagleBone with TRF7970A on SPI1): @@ -30,7 +35,10 @@ Example (for ARM-based BeagleBone with TRF7970A on SPI1): ti,enable-gpios = <&gpio2 2 GPIO_ACTIVE_LOW>, <&gpio2 5 GPIO_ACTIVE_LOW>; vin-supply = <&ldo3_reg>; + vin-voltage-override = <5000000>; autosuspend-delay = <30000>; + irq-status-read-quirk; + en2-rf-quirk; status = "okay"; }; }; |