diff --git a/arch/risc-v/src/mpfs/hardware/mpfs_sgmii.h b/arch/risc-v/src/mpfs/hardware/mpfs_sgmii.h
index aacfabb2153..65959492bee 100644
--- a/arch/risc-v/src/mpfs/hardware/mpfs_sgmii.h
+++ b/arch/risc-v/src/mpfs/hardware/mpfs_sgmii.h
@@ -601,6 +601,7 @@
 #define MPFS_CFG_DDR_SGMII_PHY_RPC20          (MPFS_CFG_DDR_SGMII_PHY_BASE + MPFS_CFG_DDR_SGMII_PHY_RPC20_OFFSET)
 #define MPFS_CFG_DDR_SGMII_PHY_RPC145         (MPFS_CFG_DDR_SGMII_PHY_BASE + MPFS_CFG_DDR_SGMII_PHY_RPC145_OFFSET)
 #define MPFS_CFG_DDR_SGMII_PHY_RPC147         (MPFS_CFG_DDR_SGMII_PHY_BASE + MPFS_CFG_DDR_SGMII_PHY_RPC147_OFFSET)
+#define MPFS_CFG_DDR_SGMII_PHY_RPC156         (MPFS_CFG_DDR_SGMII_PHY_BASE + MPFS_CFG_DDR_SGMII_PHY_RPC156_OFFSET)
 #define MPFS_CFG_DDR_SGMII_PHY_RPC166         (MPFS_CFG_DDR_SGMII_PHY_BASE + MPFS_CFG_DDR_SGMII_PHY_RPC166_OFFSET)
 #define MPFS_CFG_DDR_SGMII_PHY_RPC168         (MPFS_CFG_DDR_SGMII_PHY_BASE + MPFS_CFG_DDR_SGMII_PHY_RPC168_OFFSET)
 #define MPFS_CFG_DDR_SGMII_PHY_RPC220         (MPFS_CFG_DDR_SGMII_PHY_BASE + MPFS_CFG_DDR_SGMII_PHY_RPC220_OFFSET)
diff --git a/arch/risc-v/src/mpfs/mpfs_ddr.c b/arch/risc-v/src/mpfs/mpfs_ddr.c
index 87121de1b6a..873af8bcdae 100644
--- a/arch/risc-v/src/mpfs/mpfs_ddr.c
+++ b/arch/risc-v/src/mpfs/mpfs_ddr.c
@@ -582,6 +582,8 @@ static void mpfs_set_ddr_rpc_regs(struct mpfs_ddr_priv_s *priv)
 
 #endif
 
+  putreg32(LIBERO_SETTING_RPC_156_VALUE, MPFS_CFG_DDR_SGMII_PHY_RPC156);
+
   putreg32(0x2, MPFS_CFG_DDR_SGMII_PHY_RPC27);
   putreg32(0, MPFS_CFG_DDR_SGMII_PHY_RPC203);
 
diff --git a/boards/risc-v/mpfs/icicle/include/board_liberodefs.h b/boards/risc-v/mpfs/icicle/include/board_liberodefs.h
index 63259b7454d..badac2bdf41 100644
--- a/boards/risc-v/mpfs/icicle/include/board_liberodefs.h
+++ b/boards/risc-v/mpfs/icicle/include/board_liberodefs.h
@@ -82,6 +82,7 @@
 #define LIBERO_SETTING_RPC_ODT_DQS           0x00000006
 #define LIBERO_SETTING_RPC_ODT_ADDCMD        0x00000002
 #define LIBERO_SETTING_RPC_ODT_CLK           0x00000002
+#define LIBERO_SETTING_RPC_156_VALUE         0x00000001
 #define LIBERO_SETTING_RPC_EN_ADDCMD0_OVRT9  0x00000f00
 #define LIBERO_SETTING_RPC_EN_ADDCMD1_OVRT10 0x00000fff
 #define LIBERO_SETTING_RPC_EN_ADDCMD2_OVRT11 0x00000fe6
diff --git a/boards/risc-v/mpfs/m100pfsevp/include/board_liberodefs.h b/boards/risc-v/mpfs/m100pfsevp/include/board_liberodefs.h
index ec80a467a30..edab61a8e23 100644
--- a/boards/risc-v/mpfs/m100pfsevp/include/board_liberodefs.h
+++ b/boards/risc-v/mpfs/m100pfsevp/include/board_liberodefs.h
@@ -80,6 +80,7 @@
 #define LIBERO_SETTING_RPC_ODT_DQS           0x00000006
 #define LIBERO_SETTING_RPC_ODT_ADDCMD        0x00000006
 #define LIBERO_SETTING_RPC_ODT_CLK           0x00000006
+#define LIBERO_SETTING_RPC_156_VALUE         0x00000001
 #define LIBERO_SETTING_RPC_EN_ADDCMD0_OVRT9  0x00000000
 #define LIBERO_SETTING_RPC_EN_ADDCMD1_OVRT10 0x00000003
 #define LIBERO_SETTING_RPC_EN_ADDCMD2_OVRT11 0x00000dc4