Re: [Etherboot-users] 3c905b bug fix compile error

[Marty C. <md...@et...>]

On Sep 8, 2005, at 11:07 PM, le...@mi... wrote:
> Hello,
>      I have been reading the mail archive and see there is the bug  
> with the
> 3c90x cards so I am trying to compile the etherboot bug fix option
> -DCFG_3C90X_BOOTROM_FIX.

Hello, and thanks very much for your message.

>   I am guessing you put it in the Makefile.main towards
> the bottom like this but not sure
> 3C90XFLAGS=     -DINCLUDE_3C90X -DCFG_3C90X_BOOTROM_FIX

This should work fine.  You could also do:

     CFLAGS+=    -DCFG_3C90X_BOOTROM_FIX

in src/Config  which might be easier to find and comment out after  
you've
made your floppy.  Either way is fine.

> Anyways, If this is correct, when I go to compile I get the  
> following error
>     # make bin/3c90x.zfd0
>     ld  -N -T arch/i386/core/etherboot.lds -o bin/3c90x.dsk.rt bin/ 
> 3c90x.rt.o
>     bin/floppyprefix.exit.o
>     bin/3c90x.rt.o(.text+0x1803): In function `a3c90x_probe':
>     : undefined reference to `a3c90x_internal_WriteEeprom'
>     make: *** [bin/3c90x.dsk.rt] Error 1

This looks like a bug in 3c90x.c.  Here is a patch:

===== patch begins at next line=====
--- 3c90x.c.orig        2005-09-09 06:53:10.000000000 -0400
+++ 3c90x.c     2005-09-09 07:04:17.000000000 -0400
@@ -319,7 +319,7 @@
      }
-#if 0
+#ifdef CFG_3C90X_BOOTROM_FIX | CFG_3C90X_XCVR
/*** a3c90x_internal_WriteEepromWord - write a physical word of
   *** data to the onboard serial eeprom (not the BIOS prom, but the
   *** nvram in the card that stores, among other things, the MAC
@@ -353,9 +353,7 @@
      return 0;
      }
-#endif
-#if 0
/*** a3c90x_internal_WriteEeprom - write data to the serial eeprom,
   *** and re-compute the eeprom checksum.
   ***/
===== patch ends with previous line =====

Part of the code that the BOOTROM_FIX code needed was conditionalized  
out.  I just made sure that the code was turned on if either of two  
compile-time options was defined, since they both need it.

If you copy this patch into a file, say, ~/bootrom-patch.txt", and go  
to the
etherboot-5.4.1/src/drivers/net directory, and do:

     $ patch -p0 < ~/bootrom-patch.txt

it should apply the patch, and you can then do:

     $ make bin/3c90x.zdsk

And you should get the floppy you need to fix configure the ROM  
socket on your 3C905B with the BootROM socket bug.

Then it's a simple matter of:

     $ cat bin/3c90x.zdsk > /dev/fd0

and boot once with the floppy (and no EEPROM in the socket!).  Then  
take out the floppy, put in an EEPROM, and have at it.

> I am using etherboot 5.4.1 any help would be great for I am trying  
> to make my
> own boot rom chips for I have a programmer but so far the cards are  
> not seeing
> the chips I make at all.  I am hoping this bug fix will fix the  
> problem
> thanks
> -Lee

I should also mention that the good folks of LTSP released a pre- 
built floppy image (from an older version of Etherboot) that  
configures 3C905-B ROM sockets.  It is available here:

     http://sourceforge.net/project/showfiles.php? 
group_id=17723&package_id=13619&release_id=32370

It should also reconfigure the card.

I do appreciate your bug report, and would also appreciate it if you  
would be so kind as to test the patch I provided above.  If it works,  
we'll apply it to CVS so the fix will be carried forward.

Thanks again for your help.  Please let us know how things go...

Marty

-- 
     Try: http://rom-o-matic.net/ to make Etherboot images instantly.

    Name: Marty Connor
US Mail: Entity Cyber, Inc.; P.O. Box 391827;
          Cambridge, MA 02139; USA
   Voice: (617) 491-6935; Fax: (617) 491-7046
   Email: md...@et...
     Web: http://www.etherboot.org/