[coreboot] [patch][v2]:fam10 microcode
Ward Vandewege
ward at gnu.org
Tue Jun 2 23:02:37 CEST 2009
On Tue, Jun 02, 2009 at 02:27:58PM -0600, Marc Jones wrote:
> You are the first to try this on a real system. Nothing is jumping out
> at me in the code. If you can put in some debug checks around there it
> will be helpful to figure out.
Sure. I've sprinkled some debug code and traced the hang to this bit of code
in cpu/amd/model_10xxx/init_cpus.c, void AMD_SetHtPhyRegister:
/* Now get the current phy register data
* LinkPhyDone = 0, LinkPhyWrite = 0 is a read
*/
phyReg |= fam10_htphy_default[entry].htreg;
pci_write_config32(NODE_PCI(node, 4), phyBase, phyReg);
do {
val = pci_read_config32(NODE_PCI(node, 4), phyBase);
} while (!(val & HTPHY_IS_COMPLETE_MASK));
That's an infinite loop on the second CPU, apparently.
I've uploaded the boot log with debug output, as well as my modified
init_cpus.c file with all the debug printing:
http://ward.vandewege.net/coreboot/h8dmr/fam10/h8dmr-n.cap
http://ward.vandewege.net/coreboot/h8dmr/fam10/init_cpus-n.c
Thanks,
Ward.
--
Ward Vandewege <ward at gnu.org>
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