From: Michael Lawnick <ml.lawnick-Mmb7MZpHnFY@public.gmane.org>
To: Jean Delvare <khali-PUYAD+kWke1g9hUCZPvPmw@public.gmane.org>
Cc: Michael Fuckner <michael-iWcS09LKDTLR7s880joybQ@public.gmane.org>,
linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: Decode dimms on dual socket machines
Date: Thu, 14 Apr 2011 13:42:19 +0200 [thread overview]
Message-ID: <4DA6DD9B.40208@gmx.de> (raw)
In-Reply-To: <20110413103952.68bdb6fa-R0o5gVi9kd7kN2dkZ6Wm7A@public.gmane.org>
Jean Delvare said the following:
> On Wed, 13 Apr 2011 08:13:54 +0200, Michael Lawnick wrote:
>> I would expect a
>> #> echo "<deviceName> 0x70" > /sys/bus/i2c/devices/i2c-0/new_device
>> to span new buses, their numbers taken by random, even without platform
>> data (not tried by myself yet, but will have to do it soon).
>
> Hmm, you're right, my memory that we has made platform data mandatory
> was wrong, sorry.
>
>> The challenge will be to detect which of the 8 supported devices (
>> pca_9540, pca_9542, pca_9543, pca_9544, pca_9545, pca_9546, pca_9547,
>> pca_9548) is actually to be used.
>
> In Michael's case it is irrelevant anyway, as the information he found
> meanwhile clearly indicates that bus multiplexing is achieved by GPIOs
> (most certainly on the ICH10) and not an PCA954x chip. The chip at 0x70
> is probably the Intel 5500 IOH.
>
Well, if he implements a multiplexer code for it, he is done :-)
--
KR
Michael
prev parent reply other threads:[~2011-04-14 11:42 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-12 10:10 Decode dimms on dual socket machines Michael Fuckner
[not found] ` <4DA4250A.3060907-iWcS09LKDTLR7s880joybQ@public.gmane.org>
2011-04-12 11:26 ` Jean Delvare
[not found] ` <20110412132611.045ace21-R0o5gVi9kd7kN2dkZ6Wm7A@public.gmane.org>
2011-04-12 12:52 ` Michael Fuckner
[not found] ` <4DA44B05.906-iWcS09LKDTLR7s880joybQ@public.gmane.org>
2011-04-12 13:53 ` Jean Delvare
[not found] ` <20110412155345.4644e51c-R0o5gVi9kd7kN2dkZ6Wm7A@public.gmane.org>
2011-04-13 6:13 ` Michael Lawnick
[not found] ` <4DA53F22.5020105-Mmb7MZpHnFY@public.gmane.org>
2011-04-13 8:39 ` Jean Delvare
[not found] ` <20110413103952.68bdb6fa-R0o5gVi9kd7kN2dkZ6Wm7A@public.gmane.org>
2011-04-13 10:06 ` Michael Fuckner
[not found] ` <4DA575C3.1050100-iWcS09LKDTLR7s880joybQ@public.gmane.org>
2011-04-13 11:45 ` Jean Delvare
2011-04-19 12:24 ` Jean Delvare
2011-04-14 11:42 ` Michael Lawnick [this message]
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