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Date: Thu, 14 Dec 2017 13:19:05 +0530 From: Naga Sureshkumar Relli <naga.sureshkumar.relli@...inx.com> To: <boris.brezillon@...e-electrons.com>, <richard@....at>, <computersforpeace@...il.com>, <marek.vasut@...il.com>, <cyrille.pitchen@...ev4u.fr> CC: <dwmw2@...radead.org>, <linux-mtd@...ts.infradead.org>, <linux-kernel@...r.kernel.org>, <michals@...inx.com>, <punnaia@...inx.com>, <nagasuresh12@...il.com> Subject: [PATCH v8 1/2] mtd: arasan: Add device tree binding documentation This patch adds the dts binding document for arasan nand flash controller. Signed-off-by: Naga Sureshkumar Relli <nagasure@...inx.com> Signed-off-by: Punnaiah Choudary Kalluri <punnaia@...inx.com> --- Changes in v8: - Updated compatible and clock-names as per Boris comments Changes in v7: - Corrected the acronyms those should be in caps changes in v6: - Removed num-cs property - Separated nandchip from nand controller changes in v5: - None Changes in v4: - Added num-cs property - Added clock support Changes in v3: - None Changes in v2: - None --- .../devicetree/bindings/mtd/arasan_nand.txt | 38 ++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/arasan_nand.txt diff --git a/Documentation/devicetree/bindings/mtd/arasan_nand.txt b/Documentation/devicetree/bindings/mtd/arasan_nand.txt new file mode 100644 index 000000000000..1a870153a909 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/arasan_nand.txt @@ -0,0 +1,38 @@ +Arasan NAND Flash Controller with ONFI 3.1 support + +Required properties: +- compatible: Should be "xlnx,zynqmp-nand" or "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 - "sys", "flash" + (See clock bindings for details) +- clocks: Clock phandles (see clock bindings for details) + +Optional properties: +- arasan,has-mdma: Enables DMA support + +For NAND partition information please refer the below file +Documentation/devicetree/bindings/mtd/partition.txt + +Example: + nand0: nand@...00000 { + compatible = "xlnx,zynqmp-nand", "arasan,nfc-v3p10" + reg = <0x0 0xff100000 0x1000>; + clock-name = "sys", "flash" + clocks = <&misc_clk &misc_clk>; + interrupt-parent = <&gic>; + interrupts = <0 14 4>; + arasan,has-mdma; + #address-cells = <1>; + #size-cells = <0> + + nand@0 { + reg = <0> + partition@0 { + label = "filesystem"; + reg = <0x0 0x0 0x1000000>; + }; + (...) + }; + }; -- 2.13.0
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