MC_CTL_REG_SCRUBADDR_LO
mc_pcicfg_get32_nohdl(mc, MC_FUNC_MISCCTL, MC_CTL_REG_SCRUBADDR_LO);
mc_pcicfg_put32_nohdl(mc, MC_FUNC_MISCCTL, MC_CTL_REG_SCRUBADDR_LO,