[PATCH 1/2] ARM: mvebu: second PCIe unit of Armada XP mv78230 is only x1 capable

[thomas.petazzoni@free-electrons.com (Thomas Petazzoni)]

Dear Arnaud Ebalard,

On Tue, 05 Nov 2013 21:45:48 +0100, Arnaud Ebalard wrote:
> Various Marvell datasheets advertise second PCIe unit of mv78230
> flavour of Armada XP as x4/quad x1 capable. This second unit is in
> fact only x1 capable. This patch fixes current mv78230 .dtsi to
> reflect that, i.e. makes 1.0 the second interface (instead of 2.0
> at the moment). This was successfully tested on a mv78230-based
> ReadyNAS 2120 platform with a x1 device (FL1009 XHCI controller)
> connected to this second interface.
> 
> Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
> ---
>  arch/arm/boot/dts/armada-xp-mv78230.dtsi | 24 ++++++++++++------------
>  1 file changed, 12 insertions(+), 12 deletions(-)

Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

This is actually a bug fix, and the problem exists since commit
9d8f44f02d4a5f6e7b8d138ea8f8c6e30ae6e1a3, and therefore in 3.10, 3.11
and 3.12.

However, while the PCIe DT stuff was merged in 3.10, the actual driver
itself was only merged in 3.11, so in 3.10, there is no chance to hit
the bug.

Therefore, having this fix pushed to the stable 3.11.x and 3.12.x trees
would be good.

Thanks Arnaud for following up on this!

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com