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Date:	Thu, 12 Jun 2014 16:22:08 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>,
	Gregory CLEMENT <gregory.clement@...e-electrons.com>,
	Jason Cooper <jason@...edaemon.net>
Subject: [PATCH 3.10 04/18] ARM: mvebu: fix NOR bus-width in Armada XP OpenBlocks AX3 Device Tree

3.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>

commit 6e20bae8a39c40d4e03698e4160bad2d2629062b upstream.

The mvebu-devbus driver had a serious bug, which lead to a 8 bits bus
width declared in the Device Tree being considered as a 16 bits bus
width when configuring the hardware.

This bug in mvebu-devbus driver was compensated by a symetric mistake
in the Armada XP OpenBlocks AX3 Device Tree: a 8 bits bus width was
declared, even though the hardware actually has a 16 bits bus width
connection with the NOR flash.

Now that we have fixed the mvebu-devbus driver to behave according to
its Device Tree binding, this commit fixes the problematic Device Tree
files as well.

This bug was introduced in commit
a7d4f81821f7eec3175f8e23dd6949c71ab2da43 ('ARM: mvebu: Add support for
NOR flash device on Openblocks AX3 board') which was merged in v3.10.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Link: https://lkml.kernel.org/r/1397489361-5833-5-git-send-email-thomas.petazzoni@free-electrons.com
Fixes: a7d4f81821f7 ('ARM: mvebu: Add support for NOR flash device on Openblocks AX3 board')
Cc: stable@...r.kernel.org # v3.10+
Acked-by: Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@...e-electrons.com>
Signed-off-by: Jason Cooper <jason@...edaemon.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>


---
 arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
+++ b/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
@@ -152,7 +152,7 @@
 				/* Device Bus parameters are required */
 
 				/* Read parameters */
-				devbus,bus-width    = <8>;
+				devbus,bus-width    = <16>;
 				devbus,turn-off-ps  = <60000>;
 				devbus,badr-skew-ps = <0>;
 				devbus,acc-first-ps = <124000>;


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