K7SEM support broken in freebios?

[Thomas Wehrspann]

Hello,

is seems that the support for the ecs k7sem got broken.
When i use the current CVS copiling is no problem, but when i boot
linuxbios stops before the mtrr stuff with "Enabling cache...".

I followed the procedure in the howto and used the serial console (no debug).

The CVS version from 2003-04-01 works, the one from 2003-05-01 works not.

Thomas

[ron minnich]

On Sun, 27 Jul 2003, Thomas Wehrspann wrote:
> When i use the current CVS copiling is no problem, but when i boot
> linuxbios stops before the mtrr stuff with "Enabling cache...".

yes, this is the reason we have not frozen the tree. I am hoping somebody 
can fix the K7sem :-(

ron

[Andrew Ip]

Hi,
> yes, this is the reason we have not frozen the tree. I am hoping somebody 
> can fix the K7sem :-(

Could it be the ecc problem?

-Andrew

[ron minnich]

On Mon, 28 Jul 2003, Andrew Ip wrote:
> > yes, this is the reason we have not frozen the tree. I am hoping somebody 
> > can fix the K7sem :-(
>
> Could it be the ecc problem?

I think so. Is there a reasonable fix?

ron

[Andrew Ip]

Hi,
> I think so. Is there a reasonable fix?

It should be in the archive.  IIRC, I just skip the ecc setup.

-Andrew

[Thomas Wehrspann]

Am Montag, 28. Juli 2003 16:57 schrieb ron minnich:
> On Mon, 28 Jul 2003, Andrew Ip wrote:
> > > yes, this is the reason we have not frozen the tree. I am hoping
> > > somebody can fix the K7sem :-(
> >
> > Could it be the ecc problem?
>
> I think so. Is there a reasonable fix?
>
> ron

With the following patch the k7sem can boot with the current CVS.
But I don't know if it breaks anything else, or if it's important.

Thomas

diff -ur freebios.orig/src/cpu/k7/cpufixup.c freebios/src/cpu/k7/cpufixup.c
--- freebios.orig/src/cpu/k7/cpufixup.c Sat Aug  2 15:53:01 2003
+++ freebios/src/cpu/k7/cpufixup.c      Sat Aug  2 15:45:25 2003
@@ -51,7 +51,7 @@
        rdmsr(SYSCFG_MSR, lo, hi);
        printk_spew("SYSCFG was 0x%x:0x%x\n", hi, lo);
        lo |= SYSCFG_MSR_MtrrVarDramEn;
-       lo |= SYSCFG_MSR_SysEccEn;
+       //lo |= SYSCFG_MSR_SysEccEn;
        wrmsr(SYSCFG_MSR, lo, hi);
        rdmsr(SYSCFG_MSR, lo, hi);
        printk_spew("SYSCFG IS NOW 0x%x:0x%x\n", hi, lo);

[Thomas Wehrspann]

On Saturday 09 August 2003 19:20, Alex Scarbro wrote:
> Thankyou for the patch, just about to apply it, but realised i don't know 
> what to apply it to.  I'm not familiar with how you guys name the freebios 
> tree.  Ie on the first line it refers to freebios.orig/src/cpu/k7/ then 
> freebios/src/cpu/k7 - do i need two copies of the freebios source tree? (one 
> CVS-downloaded tree left "untouched" and one copy of that tree with the 
> patch applied.  Perhaps it would be worth a little documentation on this 
> subject?

just change to your freebios directory and
"patch -p1 < /path/to/patch.diff".
> Also, i'm planning to compile on the 2.4.7 Kernel (as per the K7SEM howto),  
> Is there now a more preferred kernel version?

There are patches for 2.4.17 and/or 2.4.19. Look in your source tree (see 
howto)
> And finally, what distro of linux do you guys use for your compilation?  I 
> tried Suse 8.1, but that failed.  Now i'm unsing an aged Redhat 7.2.  Can i 
> use the new Suse 8.2 instead.  Thought id ask first rather than try it only 
> to fail.....again :-)

SuSE 8.0 works fine for me.

Thomas