From: Anton Vorontsov <avorontsov@ru.mvista.com>
To: Wang Jian <lark@linux.net.cn>
Cc: linuxppc-dev@ozlabs.org, Jeff Borlin <jborlin@aclaratech.com>
Subject: Re: Compact Flash on 8349mITX
Date: Fri, 10 Oct 2008 16:03:49 +0400 [thread overview]
Message-ID: <20081010120349.GA13431@oksana.dev.rtsoft.ru> (raw)
In-Reply-To: <48EEBA79.9000902@linux.net.cn>
On Fri, Oct 10, 2008 at 10:14:17AM +0800, Wang Jian wrote:
> How 8349mITX's compact flash is wired?
FYI, the schematics are openly available.
http://www.freescale.com/files/32bit/hardware_tools/schematics/MPC8349EMITXESCH.pdf?WT_TYPE=Schematics&WT_VENDOR=FREESCALE&WT_FILE_FORMAT=pdf&WT_ASSET=Downloads
> If it is wired using 8 bit data bus line,
> without another patch, data transfer can't be done.
It is wired that way:
LBD[7:0] D[0:7]
LBD[15:8] D[8:15]
LBA[30..28] A[0..2]
I.e. 16 bits for data.
> Looking at logs Sam Sparks provided (without irq):
>
> ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
>
> it seems data transfer failed.
Well, w/o IRQs everything is OK. I think it's just a bogus message
after the interrupt issues.
Thanks,
--
Anton Vorontsov
email: cbouatmailru@gmail.com
irc://irc.freenode.net/bd2
next prev parent reply other threads:[~2008-10-10 12:03 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <6011A7C9CD0EE74792C3ED2A835560861FA9C0@mail.twacs.com>
2008-07-31 14:24 ` Compact Flash on 8349mITX Sparks, Sam
2008-10-09 15:52 ` Jeff Borlin
2008-10-09 16:28 ` Timur Tabi
2008-10-09 17:00 ` Jeff Borlin
2008-10-09 17:28 ` Timur Tabi
2008-10-09 18:05 ` Jeff Borlin
2008-10-09 17:23 ` Anton Vorontsov
2008-10-10 2:14 ` Wang Jian
2008-10-10 12:03 ` Anton Vorontsov [this message]
2008-10-10 3:27 ` Jeff Borlin
2008-10-10 7:26 ` Wang Jian
2008-10-10 11:40 ` Anton Vorontsov
2008-10-10 11:47 ` Anton Vorontsov
2008-07-31 13:14 Sparks, Sam
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