diff --git a/arch/arm/include/asm/arch-rockchip/sdram.h b/arch/arm/include/asm/arch-rockchip/sdram.h
index f3933f3..01fc353 100644
--- a/arch/arm/include/asm/arch-rockchip/sdram.h
+++ b/arch/arm/include/asm/arch-rockchip/sdram.h
@@ -15,34 +15,6 @@
 	UNUSED = 0xFF
 };
 
-struct sdram_cap_info {
-	unsigned int rank;
-	/* dram column number, 0 means this channel is invalid */
-	unsigned int col;
-	/* dram bank number, 3:8bank, 2:4bank */
-	unsigned int bk;
-	/* channel buswidth, 2:32bit, 1:16bit, 0:8bit */
-	unsigned int bw;
-	/* die buswidth, 2:32bit, 1:16bit, 0:8bit */
-	unsigned int dbw;
-	/*
-	 * row_3_4 = 1: 6Gb or 12Gb die
-	 * row_3_4 = 0: normal die, power of 2
-	 */
-	unsigned int row_3_4;
-	unsigned int cs0_row;
-	unsigned int cs1_row;
-	unsigned int ddrconfig;
-};
-
-struct sdram_base_params {
-	unsigned int ddr_freq;
-	unsigned int dramtype;
-	unsigned int num_channels;
-	unsigned int stride;
-	unsigned int odt;
-};
-
 /*
  * sys_reg bitfield struct
  * [31]		row_3_4_ch1
@@ -124,24 +96,4 @@
 /* Called by U-Boot board_init_r for Rockchip SoCs */
 int dram_init(void);
 
-#if !defined(CONFIG_RAM_ROCKCHIP_DEBUG)
-inline void sdram_print_dram_type(unsigned char dramtype)
-{
-}
-
-inline void sdram_print_ddr_info(struct sdram_cap_info *cap_info,
-				 struct sdram_base_params *base)
-{
-}
-
-inline void sdram_print_stride(unsigned int stride)
-{
-}
-#else
-void sdram_print_dram_type(unsigned char dramtype);
-void sdram_print_ddr_info(struct sdram_cap_info *cap_info,
-			  struct sdram_base_params *base);
-void sdram_print_stride(unsigned int stride);
-#endif /* CONFIG_RAM_ROCKCHIP_DEBUG */
-
 #endif
diff --git a/arch/arm/include/asm/arch-rockchip/sdram_common.h b/arch/arm/include/asm/arch-rockchip/sdram_common.h
new file mode 100644
index 0000000..8d771ce
--- /dev/null
+++ b/arch/arm/include/asm/arch-rockchip/sdram_common.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier:     GPL-2.0+ */
+/*
+ * Copyright (C) 2018 Rockchip Electronics Co., Ltd
+ */
+
+#ifndef _ASM_ARCH_SDRAM_COMMON_H
+#define _ASM_ARCH_SDRAM_COMMON_H
+
+struct sdram_cap_info {
+	unsigned int rank;
+	/* dram column number, 0 means this channel is invalid */
+	unsigned int col;
+	/* dram bank number, 3:8bank, 2:4bank */
+	unsigned int bk;
+	/* channel buswidth, 2:32bit, 1:16bit, 0:8bit */
+	unsigned int bw;
+	/* die buswidth, 2:32bit, 1:16bit, 0:8bit */
+	unsigned int dbw;
+	/*
+	 * row_3_4 = 1: 6Gb or 12Gb die
+	 * row_3_4 = 0: normal die, power of 2
+	 */
+	unsigned int row_3_4;
+	unsigned int cs0_row;
+	unsigned int cs1_row;
+	unsigned int cs0_high16bit_row;
+	unsigned int cs1_high16bit_row;
+	unsigned int ddrconfig;
+};
+
+struct sdram_base_params {
+	unsigned int ddr_freq;
+	unsigned int dramtype;
+	unsigned int num_channels;
+	unsigned int stride;
+	unsigned int odt;
+};
+
+#if !defined(CONFIG_RAM_ROCKCHIP_DEBUG)
+inline void sdram_print_dram_type(unsigned char dramtype)
+{
+}
+
+inline void sdram_print_ddr_info(struct sdram_cap_info *cap_info,
+				 struct sdram_base_params *base)
+{
+}
+
+inline void sdram_print_stride(unsigned int stride)
+{
+}
+#else
+void sdram_print_dram_type(unsigned char dramtype);
+void sdram_print_ddr_info(struct sdram_cap_info *cap_info,
+			  struct sdram_base_params *base);
+void sdram_print_stride(unsigned int stride);
+#endif /* CONFIG_RAM_ROCKCHIP_DEBUG */
+
+#endif
diff --git a/arch/arm/include/asm/arch-rockchip/sdram_rk3328.h b/arch/arm/include/asm/arch-rockchip/sdram_rk3328.h
index 11411ea..c747b46 100644
--- a/arch/arm/include/asm/arch-rockchip/sdram_rk3328.h
+++ b/arch/arm/include/asm/arch-rockchip/sdram_rk3328.h
@@ -6,6 +6,7 @@
 
 #ifndef _ASM_ARCH_SDRAM_RK3328_H
 #define _ASM_ARCH_SDRAM_RK3328_H
+#include <asm/arch-rockchip/sdram_common.h>
 
 #define SR_IDLE		93
 #define PD_IDLE		13
diff --git a/arch/arm/include/asm/arch-rockchip/sdram_rk3399.h b/arch/arm/include/asm/arch-rockchip/sdram_rk3399.h
index dc65ae7..485bb3d 100644
--- a/arch/arm/include/asm/arch-rockchip/sdram_rk3399.h
+++ b/arch/arm/include/asm/arch-rockchip/sdram_rk3399.h
@@ -5,6 +5,7 @@
 
 #ifndef _ASM_ARCH_SDRAM_RK3399_H
 #define _ASM_ARCH_SDRAM_RK3399_H
+#include <asm/arch-rockchip/sdram_common.h>
 
 struct rk3399_ddr_pctl_regs {
 	u32 denali_ctl[332];