From: wolfking <wolfking2000@msn.com>
To: linuxppc-dev@ozlabs.org
Subject: Re: can't access PCIe card under sbc8548
Date: Thu, 30 May 2013 17:40:18 -0700 (PDT) [thread overview]
Message-ID: <1369960818166-71847.post@n7.nabble.com> (raw)
In-Reply-To: <1369931365.14679.7@snotra>
hi, scott:
Thanks for replying!
> In what specific way does it not work?
when I use iowrite8 to write, things seem OK, the codes continue running,
when I use ioread8 to read, the console I use freezes. The console stops
responding.
> Why can't it succeed? Is there nothing mapped at 0xfc7fc000?
My PCIe card's local bus register is at BAR0+0xC7, so the driver should
access 0xfc7fc027 and the following 7 bytes. But When I access the areas:
ioread8 just freezes.
--
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next prev parent reply other threads:[~2013-05-31 0:40 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
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 [this message]
2013-05-31 10:01 ` Benjamin Herrenschmidt
2013-05-31 12:46 ` wolfking
2013-06-08 7:00 ` wolfking
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