r8153_power_cut_en(tp, false);
        r8153_u1u2en(tp, true);
 
-       ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL, ALDPS_SPDWN_RATIO);
-       ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2, EEE_SPDWN_RATIO);
-       ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3,
-                      PKT_AVAIL_SPDWN_EN | SUSPEND_SPDWN_EN |
-                      U1U2_SPDWN_EN | L1_SPDWN_EN);
-       ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4,
-                      PWRSAVE_SPDWN_EN | RXDV_SPDWN_EN | TX10MIDLE_EN |
-                      TP100_SPDWN_EN | TP500_SPDWN_EN | TP1000_SPDWN_EN |
-                      EEE_SPDWN_EN);
+       /* MAC clock speed down */
+       ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL, 0);
+       ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL2, 0);
+       ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL3, 0);
+       ocp_write_word(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL4, 0);
 
        r8153_enable_eee(tp);
        r8153_aldps_en(tp, true);