SCSI_EXECUTE_PHASE
nsp32_write2(base, SCSI_EXECUTE_PHASE, 0);
auto_stat = nsp32_read2(base, SCSI_EXECUTE_PHASE);
nsp32_write2(base, SCSI_EXECUTE_PHASE, 0);
nsp32_read2(base, SCSI_EXECUTE_PHASE);
printk("execph=0x%x, ", nsp32_read2(base, SCSI_EXECUTE_PHASE));