[U-Boot-Users] (no subject)

Mark Rakes
2004-10-07T19:25:56Z

I've used e1000, dp83815, and dp83820 PCI cards on the Sandpoint
with an mpc8245. All 3 of those drivers are polling based, and need
no interrupts.

hth,
-mark

On Oct 7, 2004, at 9:55 AM, Eren Gurses wrote:

>
> 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 something informative (except that it doesn't work)...
>
> I am completely stucked at this point. Any kind of help is very
> appreciated.
> Thanks in advance...
>
> --Eren
>
>
> In message <001201c362f9$aaf09c60$240110ac@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
>
>
>
>
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