From: Wolfgang Denk <wd@denx.de>
To: None Atall <linux_meis@yahoo.com>
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: Re: [Linux-ATM-General] Re: ATM driver for 8260 (linux 2.4.x)
Date: Tue, 29 Jan 2002 16:55:06 +0100 [thread overview]
Message-ID: <20020129155511.670E1109D5@denx.denx.de> (raw)
In-Reply-To: Your message of "Tue, 29 Jan 2002 06:23:21 PST." <20020129142321.38639.qmail@web9706.mail.yahoo.com>
In message <20020129142321.38639.qmail@web9706.mail.yahoo.com> you wrote:
>
> For some reason the interrupt handler reads old
> values, although the CPM puts new data. (I checked it
Sounds like a cache problem...
> using JTAG). It seems
> like the old data are kept on buffers and are not
> refreshed. Unfortunetely i did what Hofrat saied,
> but it doesn't work. Is there a function for forcing
> refresh? flush_tlb or flush_dcache perhaps?
flush_dcache_range().
> > > Also, in the original driver Alex used the
> > > mm_alloc_uncached_pages function, but i have
> > replased
> > > it with kmalloc(size, GFP_KERNEL). Is it correct?
Hint! Hint!
Hope this helps,
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd@denx.de
As far as we know, our computer has never had an undetected error.
-- Weisert
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2002-01-29 15:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200201291247.g0TClwl07353@hofr.at>
2002-01-29 14:23 ` [Linux-ATM-General] Re: ATM driver for 8260 (linux 2.4.x) None Atall
2002-01-29 15:55 ` Wolfgang Denk [this message]
2002-01-29 16:30 ` None Atall
2002-01-30 11:39 ` ATM driver for 8260 (linux 2.4.x) working! None Atall
2002-01-24 16:07 ATM driver for 8260 (linux 2.4.x) None Atall
2002-01-29 4:03 ` [Linux-ATM-General] " James Campbell
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