[U-Boot] [PATCH v2 13/16] I2C: adding new "i2c bus" Command to the I2C Subsystem.

Ben Warren biggerbadderben at gmail.com
Thu Oct 16 19:06:02 CEST 2008


Hi Heiko,

Heiko Schocher wrote:
> Hello Ben,
>
> Ben Warren wrote:
>   
>> Heiko Schocher wrote:
>>     
>>> With this Command it is possible to add new I2C Busses,
>>> which are behind 1 .. n I2C Muxes. Details see README.
>>>   
>>>       
>> While this is pretty cool, I'm curious what circumstances lead to
>> needing to add I2C buses at run-time via command line.  Presumably you
>> have a real business need for this in a bootloader?
>>     
>
> Yes. This boardmanufacturer has a lot of hardwareversions with
> different I2C bus wirings, but has for example always one EEProm
> with configdata. Now, he can use one u-boot image for all this
> boards and has just to define in the environment, in which way
> he can reach this EEprom.
>
> bye
> Heiko
>   
Interesting.  Thank you.

regards,
Ben


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