mtd: nand: add tango NFC dt bindings doc

[Linux-MTD Mailing List]

Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=c3d03de3962163855d2007b8c2243b9bf005bec7
Commit:     c3d03de3962163855d2007b8c2243b9bf005bec7
Parent:     8bd8fbd8bccf6e32198000792ee8d1e9189f441f
Author:     Marc Gonzalez <marc_gonzalez at sigmadesigns.com>
AuthorDate: Tue Oct 25 15:15:50 2016 +0200
Committer:  Boris Brezillon <boris.brezillon at free-electrons.com>
CommitDate: Mon Nov 7 14:48:39 2016 +0100

    mtd: nand: add tango NFC dt bindings doc
    
    Add the tango NAND Flash Controller dt bindings documentation.
    
    Signed-off-by: Marc Gonzalez <marc_gonzalez at sigmadesigns.com>
    Acked-by: Rob Herring <robh at kernel.org>
    Signed-off-by: Boris Brezillon <boris.brezillon at free-electrons.com>
---
 .../devicetree/bindings/mtd/tango-nand.txt         | 38 ++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/Documentation/devicetree/bindings/mtd/tango-nand.txt b/Documentation/devicetree/bindings/mtd/tango-nand.txt
new file mode 100644
index 0000000..ad5a02f
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/tango-nand.txt
@@ -0,0 +1,38 @@
+Sigma Designs Tango4 NAND Flash Controller (NFC)
+
+Required properties:
+
+- compatible: "sigma,smp8758-nand"
+- reg: address/size of nfc_reg, nfc_mem, and pbus_reg
+- dmas: reference to the DMA channel used by the controller
+- dma-names: "nfc_sbox"
+- clocks: reference to the system clock
+- #address-cells: <1>
+- #size-cells: <0>
+
+Children nodes represent the available NAND chips.
+See Documentation/devicetree/bindings/mtd/nand.txt for generic bindings.
+
+Example:
+
+	nandc: nand-controller at 2c000 {
+		compatible = "sigma,smp8758-nand";
+		reg = <0x2c000 0x30 0x2d000 0x800 0x20000 0x1000>;
+		dmas = <&dma0 3>;
+		dma-names = "nfc_sbox";
+		clocks = <&clkgen SYS_CLK>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		nand at 0 {
+			reg = <0>; /* CS0 */
+			nand-ecc-strength = <14>;
+			nand-ecc-step-size = <1024>;
+		};
+
+		nand at 1 {
+			reg = <1>; /* CS1 */
+			nand-ecc-strength = <14>;
+			nand-ecc-step-size = <1024>;
+		};
+	};