| From | Kamal Mostafa <> | Subject | [PATCH 3.13 080/212] ARM: mvebu: fix NOR bus-width in Armada XP DB Device Tree | Date | Tue, 17 Jun 2014 14:42:54 -0700 |
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3.13.11.4 -stable review patch. If anyone has any objections, please let me know.
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From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
commit f3aec8f3f05025e7b450102dae0759375346706e 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 DB 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 b484ff42df475c5087d614c4d477273e1906bcb9 ('ARM: mvebu: Add support for NOR flash device on Armada XP-DB board') which was merged in v3.11.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Link: https://lkml.kernel.org/r/1397489361-5833-4-git-send-email-thomas.petazzoni@free-electrons.com Fixes: b484ff42df47 ('ARM: mvebu: Add support for NOR flash device on Armada XP-DB board') Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- arch/arm/boot/dts/armada-xp-db.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/armada-xp-db.dts b/arch/arm/boot/dts/armada-xp-db.dts index bcf6d79..8c2fe44 100644 --- a/arch/arm/boot/dts/armada-xp-db.dts +++ b/arch/arm/boot/dts/armada-xp-db.dts @@ -40,7 +40,7 @@ /* 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>; -- 1.9.1
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