Re: for all k8 builders

YhLu  writes:
> Eric,
>
> Please check the northbridge.c attached.
>
> It seems you should  modify the e0 before you do the
> hypertransport_scan_chain. Otherwise you can not access the buses.

Unless I am mistaken that is what f1_write_config32 is doing...
config_reg is one of 0xe0, 0xe4, 0xe8, or 0xec

I think the only differences I am seeing are in, amdk8_scan_root_bus
and I just unconditionally zero 0xe0 - 0xec where you handle it conditionally

Eric
> YH.
>             config_busses &= 0x000fc88;
>             config_busses |=
>                     (3 << 0) |  /* rw enable, no device compare */
>                     (( nodeid & 7) << 4) |
>                     (( link & 3 ) << 8) |
>                     ((dev->link[link].secondary) << 16) |
>                     ((dev->link[link].subordinate) << 24);
>             f1_write_config32(config_reg, config_busses);
> #if 1
>                 printk_debug("Hyper transport scan link: %d max: %d\n",
> link, max);
> #endif
>                 /* Now we can scan all of the subordinate busses i.e. the
> chain on the hypertranport link */
>                 max = hypertransport_scan_chain(&dev->link[link], max);