From: Wolfgang Denk <wd@denx.de>
To: "ZhongJun Zhou" <zjzhou@newrocktech.com>
Cc: Peter Barada <pbarada@mail.wm.sps.mot.com>,
linuxppc-embedded@lists.linuxppc.org
Subject: Re: kernel memory mapping problem
Date: Thu, 07 Aug 2003 23:32:23 +0200 [thread overview]
Message-ID: <20030807213228.A9194C59E4@atlas.denx.de> (raw)
In-Reply-To: Your message of "Thu, 07 Aug 2003 23:49:23 +0800." <20030807154923.56073.qmail@web105.mail.yahoo.com>
In message <20030807154923.56073.qmail@web105.mail.yahoo.com> you wrote:
>
> But my functions are serial running on PPC82xx, its
> means that when I mapped the the address using __pa(
> (void *)tmp) to bd_address, then reading the BD's
> status and control registers, if OK, then return from
Just a stupid question: what are the alignment requirements of a BD,
and which alignment is guaranteed for your tmp buffer?
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd@denx.de
This cultural mystique surrounding the biological function -- you
realize humans are overly preoccupied with the subject.
-- Kelinda the Kelvan, "By Any Other Name", stardate 4658.9
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2003-08-07 21:32 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-05 18:37 debugging IBM405GP with abatron bdi 2000 Steven Blakeslee
2003-08-05 19:12 ` Wolfgang Denk
2003-08-06 14:52 ` MPC8250 MCC driver Adam Kaczynski
2002-02-07 3:21 ` kernel memory mapping problem ZhongJun Zhou
2002-02-07 4:24 ` John Zhou
2003-08-07 13:22 ` load_elf_bin problem dong in kang
2003-08-07 15:01 ` kernel memory mapping problem Peter Barada
2003-08-07 15:49 ` ZhongJun Zhou
2003-08-07 21:32 ` Wolfgang Denk [this message]
2002-02-13 6:32 ` This question may be simple for you, but it doesn't let me sleeping John Zhou
2003-08-28 9:53 ` how to use busybox to make a ramdisk? John Zhou
2003-08-29 16:42 ` Brian Padalino
2003-08-29 14:50 ` Dan Kegel
2003-08-29 14:52 ` Wolfgang Denk
2003-08-08 14:09 ` Does Linux kernel use paging or BAT registers before running the first user-level program "/bin/sh"? dong in kang
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