linux-kernel - [PATCH 2/3] dt-bindings: mtd: add DT binding for s3c2410 flash controller

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Message-Id: <1475711217-974-3-git-send-email-sergio.prado@e-labworks.com>
Date:   Wed,  5 Oct 2016 20:46:56 -0300
From:   Sergio Prado <sergio.prado@...abworks.com>
To:     linux@...linux.org.uk, linux@...tec.co.uk, robh+dt@...nel.org,
        mark.rutland@....com, devicetree@...r.kernel.org, kgene@...nel.org,
        krzk@...nel.org, javier@....samsung.com,
        boris.brezillon@...e-electrons.com, richard@....at,
        dwmw2@...radead.org, computersforpeace@...il.com,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-mtd@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Cc:     Sergio Prado <sergio.prado@...abworks.com>
Subject: [PATCH 2/3] dt-bindings: mtd: add DT binding for s3c2410 flash controller

Adds the device tree bindings description for Samsung S3C2410 and
compatible NAND flash controller.

Signed-off-by: Sergio Prado <sergio.prado@...abworks.com>
---
 .../devicetree/bindings/mtd/samsung-s3c2410.txt    | 57 ++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mtd/samsung-s3c2410.txt

diff --git a/Documentation/devicetree/bindings/mtd/samsung-s3c2410.txt b/Documentation/devicetree/bindings/mtd/samsung-s3c2410.txt
new file mode 100644
index 000000000000..1cc8e84479ed
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/samsung-s3c2410.txt
@@ -0,0 +1,57 @@
+* Samsung S3C2410 and compatible NAND flash controller
+
+Required properties:
+- compatible : The possible values are:
+	"samsung,s3c2410-nand"
+	"samsung,s3c2412-nand"
+	"samsung,s3c2440-nand"
+	"samsung,s3c6400-nand"
+- reg : register's location and length.
+- #address-cells, #size-cells : see nand.txt
+- clocks : phandle to the nand controller clock
+- clock-names : must contain "nand"
+
+Optional child nodes:
+Child nodes representing the available nand chips.
+
+Optional child properties:
+- nand-ecc-mode : see nand.txt
+- nand-on-flash-bbt : see nand.txt
+
+Each child device node may optionally contain a 'partitions' sub-node,
+which further contains sub-nodes describing the flash partition mapping.
+See partition.txt for more detail.
+
+Example:
+
+nand-controller@...00000 {
+	compatible = "samsung,s3c2440-nand";
+	reg = <0x4e000000 0x40>;
+
+	#address-cells = <1>;
+        #size-cells = <0>;
+
+	clocks = <&clocks HCLK_NAND>;
+	clock-names = "nand";
+
+	nand {
+		nand-ecc-mode = "soft";
+		nand-on-flash-bbt;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "u-boot";
+				reg = <0 0x040000>;
+			};
+
+			partition@...00 {
+				label = "kernel";
+				reg = <0x040000 0x500000>;
+			};
+		};
+	};
+};
-- 
1.9.1