ARCMSR_INBOUND_MESG0_START_BGRB
writel(ARCMSR_INBOUND_MESG0_START_BGRB, ®->inbound_msgaddr0);
writel(ARCMSR_INBOUND_MESG0_START_BGRB, &phbcmu->inbound_msgaddr0);
writel(ARCMSR_INBOUND_MESG0_START_BGRB, pmu->inbound_msgaddr0);
writel(ARCMSR_INBOUND_MESG0_START_BGRB, &pmu->inbound_msgaddr0);