A_MC3_INT_ENABLE
t1_write_reg_4(adapter, A_MC3_INT_ENABLE, cause);
t1_write_reg_4(adapter, A_MC3_INT_ENABLE, MC3_INTR_MASK);
t1_write_reg_4(mc3->adapter, A_MC3_INT_ENABLE, MC3_INTR_MASK);
t1_write_reg_4(mc3->adapter, A_MC3_INT_ENABLE, 0);
old_en = t1_read_reg_4(mc3->adapter, A_MC3_INT_ENABLE);
t1_write_reg_4(mc3->adapter, A_MC3_INT_ENABLE,
t1_write_reg_4(mc3->adapter, A_MC3_INT_ENABLE, old_en);