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    Subject[PATCH v4 1/3] mtd: arasan: Add device tree binding documentation
    Date
    This patch adds the dts binding document for arasan nand flash
    controller.

    Signed-off-by: Punnaiah Choudary Kalluri <punnaia@xilinx.com>
    ---
    Changes in v4:
    - Added num-cs property
    - Added clock support
    Changes in v3:
    - None
    Changes in v2:
    - None
    ---
    .../devicetree/bindings/mtd/arasan_nfc.txt | 34 ++++++++++++++++++++++
    1 file changed, 34 insertions(+)
    create mode 100644 Documentation/devicetree/bindings/mtd/arasan_nfc.txt

    diff --git a/Documentation/devicetree/bindings/mtd/arasan_nfc.txt b/Documentation/devicetree/bindings/mtd/arasan_nfc.txt
    new file mode 100644
    index 0000000..02e1ce3
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/mtd/arasan_nfc.txt
    @@ -0,0 +1,34 @@
    +Arasan Nand Flash Controller with ONFI 3.1 support
    +
    +Required properties:
    +- compatible: Should be "arasan,nfc-v3p10"
    +- reg: Memory map for module access
    +- interrupt-parent: Interrupt controller the interrupt is routed through
    +- interrupts: Should contain the interrupt for the device
    +- clock-name: List of input clocks - "clk_sys", "clk_flash"
    + (See clock bindings for details)
    +- clocks: Clock phandles (see clock bindings for details)
    +
    +Optional properties:
    +- arasan,has-mdma: Enables Dma support
    +- num-cs: Number of chip selects used
    +
    +for nand partition information please refer the below file
    +Documentation/devicetree/bindings/mtd/partition.txt
    +
    +Example:
    + nand0: nand@ff100000 {
    + compatible = "arasan,nfc-v3p10"
    + reg = <0x0 0xff100000 0x1000>;
    + clock-name = "clk_sys", "clk_flash"
    + clocks = <&misc_clk &misc_clk>;
    + interrupt-parent = <&gic>;
    + interrupts = <0 14 4>;
    + arasan,has-mdma;
    + num-cs = <1>;
    + partition@0 {
    + label = "filesystem";
    + reg = <0x0 0x0 0x1000000>;
    + };
    + (...)
    + };
    --
    2.1.2


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