linux-kernel - [PATCH v3 2/2] mtd: hisilicon: add device tree binding documentation

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Message-Id: <1414493629-12570-3-git-send-email-wangzhou.bry@gmail.com>
Date:	Tue, 28 Oct 2014 18:53:49 +0800
From:	Zhou Wang <wangzhou.bry@...il.com>
To:	David Woodhouse <dwmw2@...radead.org>,
	Brian Norris <computersforpeace@...il.com>,
	linux-mtd@...ts.infradead.org, devicetree@...r.kernel.org
Cc:	mark.rutland@....com, pawel.moll@....com,
	ijc+devicetree@...lion.org.uk, robh+dt@...nel.org,
	galak@...eaurora.org, caizhiyong@...wei.com,
	haojian.zhuang@...il.com, xuwei5@...ilicon.com,
	wangzhou1@...ilicon.com, linux-kernel@...r.kernel.org,
	Zhou Wang <wangzhou.bry@...il.com>
Subject: [PATCH v3 2/2] mtd: hisilicon: add device tree binding documentation

Signed-off-by: Zhou Wang <wangzhou.bry@...il.com>
---
 .../devicetree/bindings/mtd/hisi504-nand.txt       |   40 ++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mtd/hisi504-nand.txt

diff --git a/Documentation/devicetree/bindings/mtd/hisi504-nand.txt b/Documentation/devicetree/bindings/mtd/hisi504-nand.txt
new file mode 100644
index 0000000..c8b3988
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/hisi504-nand.txt
@@ -0,0 +1,40 @@
+Hisilicon Hip04 Soc NAND controller DT binding
+
+Required properties:
+- compatible:          Should be "hisilicon,504-nfc".
+- reg:                 The first contains base physical address and size of
+                       NAND controller's registers. The second contains base
+                       physical address and size of NAND controller's buffer.
+- interrupts:          Interrupt number for nfc.
+- nand-bus-width:      See nand.txt.
+- nand-ecc-mode:       See nand.txt.
+- hisi,nand-ecc-bits:  ECC bits type support.
+                 <0>:  none ecc
+                 <1>:  Can correct 1bit per 512byte.
+                 <6>:  Can correct 16bits per 1K byte.
+- #address-cells:      partition address, should be set 1.
+- #size-cells:         partition size, should be set 1.
+
+Flash chip may optionally contain additional sub-nodes describing partitions of
+the address space. See partition.txt for more detail.
+
+Example:
+
+	nand: nand@...0000 {
+		compatible = "hisilicon,504-nfc";
+		reg = <0x4020000 0x10000>, <0x5000000 0x1000>;
+		interrupts = <0 379 4>;
+		nand-bus-width = <8>;
+		nand-ecc-mode = "hw";
+		hisi,nand-ecc-bits = <1>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		partition@0 {
+			label = "nand_text";
+			reg = <0x00000000 0x00400000>;
+		};
+
+		...
+
+	};
-- 
1.7.9.5

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