How can I operate HPET on SB600?

Discussion created by Plutus on Jan 8, 2008
HPET Initial on ATI SB600

I want to make HPET work on as a counter via access HPET registers, but I don't know the BASE_ADDRESS of HPET and the address of HPET configer register.

PS: On intel ICH9,I can access HPET according to the ICH9 SPEC description.