Marc,

I'm going to implement something similar to what you've suggested, but like this:

iprobe <chip>[.1, .2]...

instead of

iprobe[.1, .2] <chip> ...

This 2-controller support will be conditionally compiled if CONFIG_I2C_2_CTRLS is defined.  I should have some code to share this afternoon.

regards,
Ben

On Fri, 2006-05-12 at 12:37 -0700, Howard, Marc wrote: 
> On May 12, 2006, at 9:36 AM, Ben Warren wrote:
> 
> > Hello,
> >
> > The CPU I'm using (MPC8349) has two hardware I2C interfaces, and  
> > I'd like to access the second one in U-boot.  Implementing this  
> > looks easy to me, but I don't want to reinvent the wheel if it's  
> > already been done elsewhere.  Has anyone done this?  If not, I'll  
> > follow up with a proposal.
> 
> Depending on what you want to do, you can cheat and just change the  
> pointer to the 2nd interface.  If you want something more full  
> featured up to the command level then I think some discussion would  
> be required on how the commands should work for specifying which  
> controller to use.
> 
> - kumar

OK, just as a suggestion how about an optional suffix on all the I2C
commands. Ex:

iprobe.2 -- discover valid I2C interfaces on controller #2.

imw.0 (or just imw) -- memory write to address on controller #0 (or the
only controller in most cases).

Seems like it wouldn't break anything to specify the controller this
way.

Marc W. Howard


-------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid0709&bid&3057&dat1642
_______________________________________________
U-Boot-Users mailing list
U-Boot-Users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/u-boot-users