823 ports access question

Wolfgang Denk wd at denx.de
Tue Aug 29 01:26:04 EST 2000

In message <Pine.LNX.3.96.1000828071718.5707A-100000 at wopr.nrl.navy.mil> you wrote:
> Sorry to write another simplistic question; hopefully
> there is a simplistic answer as well:

There is :-)

> PPC ports.  For example, the Bright Star
> ipEngine I have has LEDs connected to the LCD ports
> from the PowerPC.  I'm looking for the right
> sequence to actually write to these ports and
> get these LEDs to turn on and off.
> I've looked in 8xx_immap.h and I start to see
> what I need to make this work (im_lcd), but I'm missing
> the bigger picture.  Anyone have any example
> code for anything like this?

See the tqm_led demo driver code under

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
"Do we define evil as the absence of goodness? It seems only  logical
that shit happens--we discover this by the process of elimination."
                                                        -- Larry Wall

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