diff --git a/board/ti/am335x/board.c b/board/ti/am335x/board.c
index f4b972b..2e230f4 100644
--- a/board/ti/am335x/board.c
+++ b/board/ti/am335x/board.c
@@ -251,7 +251,8 @@
 	.sdram_tim2 = MT41J128MJT125_EMIF_TIM2,
 	.sdram_tim3 = MT41J128MJT125_EMIF_TIM3,
 	.zq_config = MT41J128MJT125_ZQ_CFG,
-	.emif_ddr_phy_ctlr_1 = MT41J128MJT125_EMIF_READ_LATENCY,
+	.emif_ddr_phy_ctlr_1 = MT41J128MJT125_EMIF_READ_LATENCY |
+				PHY_EN_DYN_PWRDN,
 };
 
 static struct emif_regs ddr3_evm_emif_reg_data = {
@@ -261,7 +262,8 @@
 	.sdram_tim2 = MT41J512M8RH125_EMIF_TIM2,
 	.sdram_tim3 = MT41J512M8RH125_EMIF_TIM3,
 	.zq_config = MT41J512M8RH125_ZQ_CFG,
-	.emif_ddr_phy_ctlr_1 = MT41J512M8RH125_EMIF_READ_LATENCY,
+	.emif_ddr_phy_ctlr_1 = MT41J512M8RH125_EMIF_READ_LATENCY |
+				PHY_EN_DYN_PWRDN,
 };
 #endif