All of lore.kernel.org
 help / color / mirror / Atom feed
From: wolfking <wolfking2000@msn.com>
To: linuxppc-dev@ozlabs.org
Subject: Re: can't access PCIe card under sbc8548
Date: Thu, 30 May 2013 00:32:37 -0700 (PDT)	[thread overview]
Message-ID: <1369899157331-71783.post@n7.nabble.com> (raw)
In-Reply-To: <51A6EA1D.7080100@windriver.com>

(continued)
  I traced the 8139too.c when it uses pci_iomap, the pci_iomap called the 
ioport_map. The difference between 8139 and my PCIe card lies in the
"port" value :
void __iomem *ioport_map(unsigned long port, unsigned int len)
{
	return (void __iomem *) (port + _IO_BASE);
}
  in 8139too.c, the "port" value is 0x1000; for my PCIe card, the "port"
value
is 0xfefff000. And the value is got from pci_resource_start. So you see, the 
8139 case doesn't overflow, my PICe overflows when _IO_BASE's value is 
0xfd7fd000.



--
View this message in context: http://linuxppc.10917.n7.nabble.com/can-t-access-PCIe-card-under-sbc8548-tp71775p71783.html
Sent from the linuxppc-dev mailing list archive at Nabble.com.

  parent reply	other threads:[~2013-05-30  7:32 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-30  3:42 can't access PCIe card under sbc8548 wolfking
2013-05-30  5:56 ` tiejun.chen
2013-05-30  7:19   ` wolfking
2013-05-30  8:47     ` tiejun.chen
2013-05-30  9:15       ` wolfking
2013-05-30  9:30         ` tiejun.chen
2013-05-30  7:32   ` wolfking [this message]
2013-05-30 10:42     ` tiejun.chen
2013-05-30 12:49       ` wolfking
2013-05-30 16:24         ` Scott Wood
2013-05-31  1:34           ` tiejun.chen
2013-05-31  2:27             ` wolfking
2013-05-31 10:00           ` Benjamin Herrenschmidt
2013-05-30 10:02 ` wolfking
2013-05-30 10:08   ` tiejun.chen
2013-05-30 12:45     ` wolfking
2013-05-30 16:29 ` Scott Wood
2013-05-31  0:40   ` wolfking
2013-05-31 10:01     ` Benjamin Herrenschmidt
2013-05-31 12:46       ` wolfking
2013-06-08  7:00         ` wolfking

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=1369899157331-71783.post@n7.nabble.com \
    --to=wolfking2000@msn.com \
    --cc=linuxppc-dev@ozlabs.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.