RE: Hdama + etherboot problems

[Craig C. Forney]

Stefan,

Thanks for your help!  Comments and patch for raminit.c for Opteron
follows.

Craig
> -----Original Message-----
> From: Stefan Reinauer [mailto:[e-mail]] 
> Sent: Wednesday, October 08, 2003 3:53 AM
> To: Craig C Forney
> Cc: [e-mail]; [e-mail]
> Subject: Re: Hdama + etherboot problems
> Craig C Forney  [031008 09:45]:
> > I'm compiling everything on a stock SuSE 8.2 Professional
>
> release with
> > the stock compilers on an Intel-based laptop (I ran into problems 
> > earlier trying to make the Linuxbios native on the Arima board, as 
> > there are some in-line assembly code issues that still need to be 
> > resolved).
>
> Compiling natively is possible by adding the following 2 
> lines to the target Config.lb:
>
> uses CC
> option CC="gcc -m32"

Thanks!!  That hadn't occurred to me, but makes sense.
> > I've been able to create a linuxbios.rom using the latest code from 
> > sourceforge (earlier today).  I changed raminit.c to accommodate 
> > 200Mhz registered memory (this case is missing in
>
> raminit.c), as this
> > is the memory that I have.
>
> Can you provide a patch? This sounds like a must-have in the 
> freebios2 tree.

I've never created a patch, but I think this works ... I verified the
rdpreamble value in the AMD docs.

---Begin patch
*** raminit.c.orig	Fri Oct 10 00:42:25 2003
--- raminit.c	Fri Oct 10 00:42:36 2003
***************
*** 2063,2068 ****
--- 2063,2072 ----
    		/* 166Mhz, 7.5ns */
    		rdpreamble = ((7 << 1)+1);
    	}
+ 		else if (divisor == ((5 << 1)+0)) {
+ 			/* 200Mhz, 7ns */
+ 			rdpreamble = ((7 << 1)+1);
+ 		}
    }
    else {
    	int slots;
---End patch
> > I programmed a FLASH part with linuxbios.rom and turned on the 
> > machine. It goes through what looks like reasonable startup stuff, 
> > finds the etherboot payload, loads it, and tries to run it.
>
> It then
> > appears to go back and reboot before anything interesting
>
> is reported
> > happening in etherboot, and then repeats this cycle forever.
>
> Did you change the etherboot config file to build for 
> LinuxBIOS? src/arch/i386/config

This was my problem ... Things are much better now!!!  Thanks!!!
> > I don't like the looks of the irq_routing_table checksum error, but 
> > I'm not sure if it is a problem or not, at this point.
>
> No, etherboot does not need the pirq table iirc.
>
> Stefan