[LinuxBIOS] Read SPD issue

Feng, Libo Libo.Feng at amd.com
Tue Aug 14 11:56:50 CEST 2007

Generally, I2C mux has some external pins to set its address. In my Tyan S3992, the address is 0x71, so the function activate_spd_rom is called before accessing SPD.

Best Regards

??? Feng Libo @ AMD  Ext: 20906
Mobile Phone: 13683249071
Office Phone: 0086-010-62801406

-----Original Message-----
From: linuxbios-bounces at linuxbios.org [mailto:linuxbios-bounces at linuxbios.org] On Behalf Of Joseph Smith
Sent: Monday, August 13, 2007 2:09 AM
To: Stefan Reinauer
Cc: Corey Osgood; linuxbios at linuxbios.org
Subject: Re: [LinuxBIOS] Read SPD issue

Quoting Stefan Reinauer <stepan at coresystems.de>:

> * Joseph Smith <joe at smittys.pointclark.net> [070812 19:49]:
>> SPD would show up at 0x50 or 0x51 right? It doesn't appear there is 
>> SPD on the on-board memory.I only show items at 0x2d (sensor) and 
>> 0x69 (clock chip).
> Are these devices (sensor, clock chip) identified? Any chance there is 
> an i2c mux somewhere?
Not sure, what is the typical address for a i2c mux? I can probe for it. The only other device i think there is, is the on-board tv-out chip, and I think that is at 0x88. How come lm-sensors default is to only probe between address range 0x03-0x77?

Thanks - Joe

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