linux-kernel - [RFC PATCH v2 07/14] of: mtd: add documentation for the ONFI NAND timing mode property

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Message-Id: <1391006064-28890-8-git-send-email-b.brezillon.dev@gmail.com>
Date:	Wed, 29 Jan 2014 15:34:17 +0100
From:	Boris BREZILLON <b.brezillon.dev@...il.com>
To:	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Rob Landley <rob@...dley.net>,
	Russell King <linux@....linux.org.uk>,
	David Woodhouse <dwmw2@...radead.org>,
	Grant Likely <grant.likely@...aro.org>,
	Brian Norris <computersforpeace@...il.com>,
	Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
	Arnd Bergmann <arnd@...db.de>
Cc:	Boris BREZILLON <b.brezillon.dev@...il.com>,
	devicetree@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-mtd@...ts.infradead.org, dev@...ux-sunxi.org
Subject: [RFC PATCH v2 07/14] of: mtd: add documentation for the ONFI NAND timing mode property

Add documentation for the ONFI NAND timing mode property.

Signed-off-by: Boris BREZILLON <b.brezillon.dev@...il.com>
---
 Documentation/devicetree/bindings/mtd/nand.txt |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/mtd/nand.txt b/Documentation/devicetree/bindings/mtd/nand.txt
index 0c962296..75e46f3 100644
--- a/Documentation/devicetree/bindings/mtd/nand.txt
+++ b/Documentation/devicetree/bindings/mtd/nand.txt
@@ -8,3 +8,8 @@
   E.g. : nand-ecc-level = <4 512>; /* 4 bits / 512 bytes */
 - nand-bus-width : 8 or 16 bus width if not present 8
 - nand-on-flash-bbt: boolean to enable on flash bbt option if not present false
+- onfi,nand-timing-mode: an integer encoding the ONFI timing mode of the NAND
+  chip. This is only used when the chip does not support the ONFI standard.
+  Choose the closest mode fulfilling the NAND chip timings.
+  For a full description of the different timing modes see this document:
+  www.onfi.org/~/media/ONFI/specs/onfi_3_1_spec.pdf‎
-- 
1.7.9.5

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