From: Marco Stornelli <marco.stornelli@coritel•it>
To: LinuxPPC-Embedded <linuxppc-embedded@ozlabs•org>
Subject: MPC8641D PCI-Express problem
Date: Tue, 25 Mar 2008 09:02:35 +0100 [thread overview]
Message-ID: <47E8B19B.10705@coritel.it> (raw)
Hi,
do you remember my problem with the pci-express? I have an mpc8641d_hpcn
(rev. 2.0) board connected via pci-express with the Xilinx ML555
evaluation board. I'm using the 2.6.24 kernel. I'm observing this
strange behavior:
1) I turn on the board and I stop the U-boot
2) I load the FPGA microcode
3) I start the system
4) I load the driver module and I read a version register in the FPGA
5) The system crashes with a "machine check exception: transfer error
ack signal"
6) reboot
7) same procedure (without load the FPGA again)
8) now I can read the registers!
If I repeat the procedure again it doesn't work anymore. I think it's a
problem with pci-express controller. Have you got any suggestions?
Thanks.
Marco
next reply other threads:[~2008-03-25 8:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-25 8:02 Marco Stornelli [this message]
2008-03-25 12:55 ` MPC8641D PCI-Express problem Kumar Gala
2008-03-25 13:03 ` Marco Stornelli
2008-03-25 21:28 ` I Need to Reset a PPC405EP PCI Bridge From a Kernel Driver Without Reboot Darcy Watkins
2008-03-27 12:52 ` MPC8641D PCI-Express problem Kumar Gala
2008-03-28 15:15 ` marco.stornelli
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=47E8B19B.10705@coritel.it \
--to=marco.stornelli@coritel$(echo .)it \
--cc=linuxppc-embedded@ozlabs$(echo .)org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox