ThomasP,
On Tue, Jun 03, 2014 at 02:38:19PM -0700, gregkh@xxxxxxxxxxxxxxxxxxx wrote:
>
> The patch below does not apply to the 3.10-stable tree.
> If someone wants it applied there, or to any other stable or longterm
> tree, then please email the backport, including the original git commit
> id to <stable@xxxxxxxxxxxxxxx>.
>
> thanks,
>
> greg k-h
>
> ------------------ original commit in Linus's tree ------------------
>
> From 1a88f809ccb5db1509a7514b187c00b3a995fc82 Mon Sep 17 00:00:00 2001
> From: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
> Date: Mon, 14 Apr 2014 17:29:19 +0200
> Subject: [PATCH] ARM: mvebu: fix NOR bus-width in Armada XP GP Device Tree
>
> 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@xxxxxxxxxxxxxxxxxx>
> Link: https://lkml.kernel.org/r/1397489361-5833-3-git-send-email-thomas.petazzoni@xxxxxxxxxxxxxxxxxx
> Fixes: da8d1b383568 ('ARM: mvebu: Add support for NOR flash device on Armada XP-GP board')
> Cc: stable@xxxxxxxxxxxxxxx # v3.10+
> Acked-by: Ezequiel Garcia <ezequiel.garcia@xxxxxxxxxxxxxxxxxx>
> Acked-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>
> Signed-off-by: Jason Cooper <jason@xxxxxxxxxxxxxx>
>
> diff --git a/arch/arm/boot/dts/armada-xp-gp.dts b/arch/arm/boot/dts/armada-xp-gp.dts
> index 61bda687f782..3a359fdd19cc 100644
> --- a/arch/arm/boot/dts/armada-xp-gp.dts
> +++ b/arch/arm/boot/dts/armada-xp-gp.dts
> @@ -59,7 +59,7 @@
> /* Device Bus parameters are required */
>
> /* Read parameters */
> - devbus,bus-width = <8>;
> + devbus,bus-width = <16>;
iirc, we did some dts node reshuffling after v3.10. Mind taking a look
and see if we can get this applied?
thx,
Jason.
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