[U-Boot-Users] DC21124x (PCI)ethernet problem on Sandpoint8245

[Eren Gurses]

Excuse me for my previous "(no subject)" e-mail, it was due to the timeout
of our proxy. I forgot to copy paste my Subject, sorry for disturbance...
Here is my problem again:



Hello,
I am new to u-boot, but have experience with high-level programming on
Linux desktop. But this is my first time to deal with device drivers and
flash programming kind of issues. Please forgive my possible naive
questions concerning to low level hardware and kernel concepts...

We have sandpoint board with mpc8245 CPU. Our goal is to plug-in and run
an ethernet card on the PCI bus(specifically Digital DC2114x ethernet,
surely it is supported in u-boot).

I have been debugging the u-boot for a while, and I concluded that it may
be due to interrupt problems(but I may be totally wrong). And when I saw
that interrupt routines in cpu/824x/interrupt.c is not implemented yet, I
thought that "Yeahh, I found the problem". Then I saw Mr. Denk's following
mail, then I confused about the situation.

Does u-boot communicate with any hardware on PCI bus without using
interrupts. Is this the common way for u-boot (I mean u-boot ports for
different architectures, especially comparing with prort for the mpc824x
arch.).

By the way, I have to say that leds on the ethernet card did never blink
under u-boot. (Obviously it is running/blinking on some other Linux PC's).
Does it mean smoething...

I am completely stucked at this point. Any kind of help is very appreciated.
Thanks in advance...

--Eren


 In message <001201c362f9$aaf09c60$240110ac at jsbae> you wrote:
 >
 > i use mpc824x and U-Boot ..
 > is there someone who used external interrupt to the mpc824x platform??
 > how can i setting EPIC for use external interrupt.

 U-Boot has little (or no) need for interrupts at  all.  What  exactly
 are you trying to do?

 Best regards,

 Wolfgang Denk

-- 
Eren Gurses
Researcher, Bilkent University
Web   : http://www.eee.metu.edu.tr/~gurses
Phone : +90-312-2902457 / 139