diff options
Diffstat (limited to 'Documentation/devicetree/bindings')
| -rw-r--r-- | Documentation/devicetree/bindings/misc/ifm-csi.txt | 41 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/powerpc/fsl/ifc.txt | 9 |
2 files changed, 47 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/misc/ifm-csi.txt b/Documentation/devicetree/bindings/misc/ifm-csi.txt new file mode 100644 index 00000000000..5bdfffb0b9f --- /dev/null +++ b/Documentation/devicetree/bindings/misc/ifm-csi.txt @@ -0,0 +1,41 @@ +IFM camera sensor interface on mpc5200 LocalPlus bus + +Required properties: +- compatible: "ifm,o2d-csi" +- reg: specifies sensor chip select number and associated address range +- interrupts: external interrupt line number and interrupt sense mode + of the interrupt line signaling frame valid events +- gpios: three gpio-specifiers for "capture", "reset" and "master enable" + GPIOs (strictly in this order). +- ifm,csi-clk-handle: the phandle to a node in the DT describing the sensor + clock generator. This node is usually a general purpose timer controller. +- ifm,csi-addr-bus-width: address bus width (valid values are 16, 24, 25) +- ifm,csi-data-bus-width: data bus width (valid values are 8 and 16) +- ifm,csi-wait-cycles: sensor bus wait cycles + +Optional properties: +- ifm,csi-byte-swap: if this property is present, the byte swapping on + the bus will be enabled. + +Example: + + csi@3,0 { + compatible = "ifm,o2d-csi"; + reg = <3 0 0x00100000>; /* CS 3, 1 MiB range */ + interrupts = <1 1 2>; /* IRQ1, edge falling */ + + ifm,csi-clk-handle = <&timer7>; + gpios = <&gpio_simple 23 0 /* image_capture */ + &gpio_simple 26 0 /* image_reset */ + &gpio_simple 29 0>; /* image_master_en */ + + ifm,csi-addr-bus-width = <24>; + ifm,csi-data-bus-width = <8>; + ifm,csi-wait-cycles = <0>; + }; + +The base address of the used chip select is specified in the +ranges property of the parent localbus node, for example: + + ranges = <0 0 0xff000000 0x01000000 + 3 0 0xe3000000 0x00100000>; diff --git a/Documentation/devicetree/bindings/powerpc/fsl/ifc.txt b/Documentation/devicetree/bindings/powerpc/fsl/ifc.txt index 939a26d541f..d5e370450ac 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/ifc.txt +++ b/Documentation/devicetree/bindings/powerpc/fsl/ifc.txt @@ -12,9 +12,12 @@ Properties: - #size-cells : Either one or two, depending on how large each chipselect can be. - reg : Offset and length of the register set for the device -- interrupts : IFC has two interrupts. The first one is the "common" - interrupt(CM_EVTER_STAT), and second is the NAND interrupt - (NAND_EVTER_STAT). +- interrupts: IFC may have one or two interrupts. If two interrupt + specifiers are present, the first is the "common" + interrupt (CM_EVTER_STAT), and the second is the NAND + interrupt (NAND_EVTER_STAT). If there is only one, + that interrupt reports both types of event. + - ranges : Each range corresponds to a single chipselect, and covers the entire access window as configured. |