ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK
if (outbound_doorbell & ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK)
} while (outbound_doorbell & (ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK
ARCMSR_HBCMU_IOP2DRV_DATA_WRITE_OK) {