On 2008-02-05 11:45, yhlu wrote: > On Feb 5, 2008 7:48 AM, Roman Kononov <[EMAIL PROTECTED]> wrote: >> On 2008-02-05 00:48 yhlu said the following: >> >>> On Feb 4, 2008 9:29 PM, Roman Kononov <[EMAIL PROTECTED]> wrote: >>>> I have difficulty cold-resetting Tyan s2912, which has mcp55. >>>> >>>> The sequence >>>> outb(0x2,0xcf9); >>>> outb(0x6,0xcf9); >>>> is a warm reset. It does not reset the HyperTransport link frequency and >>>> width. >>> how do you know? >>> >>> do you have other co-processor or htx installed? >> I have a co-processor. >> >> The sequence I hope to have: >> >> 1) Power up. Power-on reset. The co-processor takes long time to become >> alive (~500s). By this time the CPU thinks that the HT link is dead. >> 2) CPU issues another reset. >> 3) The CPU re-initializes the HT link and the connection is happy. >> >> With the above sequence, the step 3) is a warm reset, and the CPU does >> not attempt to re-initialize the link. > > that is co-processor problem. > > Please talk the co-processor vendor about that. they have solution for > you problem. otherwise return that to get one from another vendor.
Thanks for the recommendation. Who makes socket F co-processors? Can you tell me how to make the cold reset please? Roman -- coreboot mailing list [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
