| From | Jiri Slaby <> | Subject | [PATCH 3.12 072/146] ARM: mvebu: fix NOR bus-width in Armada XP GP Device Tree | Date | Mon, 9 Jun 2014 10:50:07 +0200 |
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From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
3.12-stable review patch. If anyone has any objections, please let me know.
===============
commit 1a88f809ccb5db1509a7514b187c00b3a995fc82 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 GP 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 da8d1b38356853c37116f9afa29f15648d7fb159 ('ARM: mvebu: Add support for NOR flash device on Armada XP-GP board') which was merged in v3.10.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Link: https://lkml.kernel.org/r/1397489361-5833-3-git-send-email-thomas.petazzoni@free-electrons.com Fixes: da8d1b383568 ('ARM: mvebu: Add support for NOR flash device on Armada XP-GP 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: Jiri Slaby <jslaby@suse.cz> --- arch/arm/boot/dts/armada-xp-gp.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/armada-xp-gp.dts b/arch/arm/boot/dts/armada-xp-gp.dts index 2298e4a910e2..e325e62909f9 100644 --- a/arch/arm/boot/dts/armada-xp-gp.dts +++ b/arch/arm/boot/dts/armada-xp-gp.dts @@ -49,7 +49,7 @@ /* 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>; -- 1.9.3
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