[LinuxBIOS] question about via chipset v-link and ram init

Corey Osgood corey.osgood at gmail.com
Mon Dec 10 03:19:58 CET 2007

aaron lwe wrote:
> Dear all,
> the via v-link bus is for data communication between northbridge and
> sourthbridge,
> if I just want to make dram work, do I need to configure the v-link bus?
> thanks.

No, vlink can be handled before or after ram init, and it isn't even
necessary, if no config is done it will default to the slowest operating
mode (newer chipsets may bootstrap to higher modes, depending on
motherboard design). However, you do have to program the CPU bus
registers and all the various dram config registers before ram init.
Getting these settings right may be a real pain, depending on what
chipset you're dealing with.


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