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From: lsorense@csclub.uwaterloo.ca (Lennart Sorensen)
To: Jean Delvare <khali@linux-fr.org>
Cc: Jordan Crouse <jordan.crouse@amd.com>,
Haavard Skinnemoen <hskinnemoen@atmel.com>,
David Brownell <david-b@pacbell.net>,
Bryan Wu <bryan.wu@analog.com>,
Andrew Morton <akpm@linux-foundation.org>,
Deepak Saxena <dsaxena@plexity.net>,
linux-kernel@vger.kernel.org,
Christer Weinigel <wingel@nano-system.com>
Subject: Re: Bitbanging i2c bus driver using the GPIO API
Date: Thu, 26 Apr 2007 09:29:06 -0400 [thread overview]
Message-ID: <20070426132905.GP5575@csclub.uwaterloo.ca> (raw)
In-Reply-To: <20070426145634.3ac2b7a3@hyperion.delvare>
On Thu, Apr 26, 2007 at 02:56:34PM +0200, Jean Delvare wrote:
> After digging some more, I finally managed to get my hands back on it:
> http://lists.lm-sensors.org/pipermail/lm-sensors/2006-April/016009.html
> http://lists.lm-sensors.org/pipermail/lm-sensors/2006-May/016053.html
>
> This isn't "randomly hitting ISA ports", this is reading the base I/O
> addresses from LPC configuration space. That's much better than letting
> the user set the addresses using module parameters.
>
> Lennart, can you please provide the output of the following commands on
> your system?
>
> isadump 0x2e 0x2f 5
> isadump 0x2e 0x2f 6
These return all 0xff. For example:
router2:~# isadump 0x2e 0x2f 5
WARNING! Running this program can cause system crashes, data loss and worse!
I will probe address register 0x2e and data register 0x2f.
Probing bank 5 using bank register 0x07.
Continue? [Y/n]
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
10: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
20: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
30: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
40: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
> isadump 0x4e 0x4f 5
> isadump 0x4e 0x4f 6
These return all 0x00
On the Geode LX800 where scx200_acb does work all 4 commands return all
0xff.
--
Len Sorensen
next prev parent reply other threads:[~2007-04-26 13:29 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-14 12:56 [PATCH v3] " Haavard Skinnemoen
2007-04-14 14:34 ` Haavard Skinnemoen
2007-04-14 17:28 ` Jean Delvare
2007-04-18 17:42 ` Lennart Sorensen
2007-04-19 6:54 ` Jean Delvare
2007-04-19 14:27 ` Jordan Crouse
2007-04-19 20:59 ` [PATCH v3] " Lennart Sorensen
2007-04-20 17:49 ` Jean Delvare
2007-04-22 15:41 ` Lennart Sorensen
2007-04-22 23:41 ` Jordan Crouse
2007-04-23 9:42 ` [PATCH v3] " Jean Delvare
2007-04-23 14:47 ` Jordan Crouse
2007-04-26 12:56 ` Jean Delvare
2007-04-26 13:29 ` Lennart Sorensen [this message]
2007-04-26 13:39 ` Jordan Crouse
2007-04-26 14:03 ` Lennart Sorensen
2007-04-27 8:02 ` Jean Delvare
2007-04-27 14:19 ` Lennart Sorensen
2007-04-27 14:49 ` Jordan Crouse
2007-04-27 18:53 ` Lennart Sorensen
2007-05-06 9:24 ` Jean Delvare
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