A_MC4_CFG
u32 val = t1_read_reg_4(adapter, A_MC4_CFG);
t1_write_reg_4(adapter, A_MC4_CFG, val | F_READY | F_MC4_SLOW);
val = t1_read_reg_4(adapter, A_MC4_CFG);
t1_write_reg_4(adapter, A_MC4_CFG, val | F_READY);
val = t1_read_reg_4(adapter, A_MC4_CFG); /* flush */
u32 mc4_cfg = t1_read_reg_4(adapter, A_MC4_CFG);
val = t1_read_reg_4(adapter, A_MC4_CFG);
t1_write_reg_4(adapter, A_MC4_CFG, val | F_POWER_UP);
val = t1_read_reg_4(adapter, A_MC4_CFG); /* flush */