CB_STATUS_MASK
ddi_get32(iohandle, (uint32_t *)(ioaddr+CB_STATUS_MASK)));
pcic_putcb(pcic, CB_STATUS_MASK, 0x0);
pcic_putcb(pcic, CB_STATUS_MASK, CB_SE_CCDMASK);
ddi_put32(iohandle, (uint32_t *)(ioaddr+CB_STATUS_MASK),
(uint32_t *)(ioaddr+CB_STATUS_MASK)) | CB_SE_CCDMASK);