From: Abdelghani Ouchabane <abdelghani@ezono.com>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Subject: Re: PCIe can not rescan for new PCIe device ( FPGA board )
Date: Fri, 14 Oct 2011 11:27:01 +0200 [thread overview]
Message-ID: <4E980065.3090509@ezono.com> (raw)
In-Reply-To: <CAErSpo5Q22-VtNd23-rmCUsJdQmN7VdmSAM806-_Po7=KK9Y0g@mail.gmail.com>
> Thanks for the details.
>
> If I understand correctly:
>
> A - fails (card not present at power-on, added later)
> B - works (card always present)
> C - works (card present at power-on, later removed and re-added,
> requires manual rescan)
>
> I see this note in section 9.4.8 (BIOS setup) of the conga-BAF User's Guide:
>
> Note: Unless the hotplug support for this port is enabled as well,
> an unpopulated
> port will still be disabled if no PCI Express device is connected.
>
> If you don't have hotplug enabled in the BIOS setup, it sounds like it
> might result in the behavior you're seeing. Do you have that enabled?
>
> Bjorn
Hallo Bjorn & Kenji,
the hot-plug was enabled, but today I have received a new BIOS from
Congatec which solves the problem.
Among the fix is:
_BBRAR009 to BBRAR110:_
2. Enabled PCIExpress / ExpressCard basic hotplug support. Enabled event
handling support.
Now after the manual rescan my FPGA board gets detect correctly and I
can access its registers in the correct way.
Many thanks for all your supports.
My best regards,
Ghani
prev parent reply other threads:[~2011-10-14 9:27 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-07 7:16 PCIe can not rescan for new PCIe device ( FPGA board ) Abdelghani Ouchabane
2011-10-07 15:37 ` Bjorn Helgaas
2011-10-07 16:22 ` Abdelghani Ouchabane
2011-10-07 16:36 ` Bjorn Helgaas
2011-10-11 1:39 ` Kenji Kaneshige
2011-10-11 8:11 ` Abdelghani Ouchabane
2011-10-12 6:36 ` Kenji Kaneshige
2011-10-12 8:35 ` Abdelghani Ouchabane
2011-10-13 12:50 ` Kenji Kaneshige
2011-10-14 9:40 ` Abdelghani Ouchabane
2011-10-24 5:00 ` Kenji Kaneshige
2011-10-24 9:20 ` Abdelghani Ouchabane
2011-10-11 8:10 ` Abdelghani Ouchabane
2011-10-11 15:22 ` Bjorn Helgaas
[not found] ` <4E954251.5020801@ezono.com>
2011-10-12 8:03 ` Abdelghani Ouchabane
2011-10-12 15:58 ` Bjorn Helgaas
2011-10-14 9:27 ` Abdelghani Ouchabane [this message]
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