diff --git a/drivers/nxp/ddr/include/ddr.h b/drivers/nxp/ddr/include/ddr.h
new file mode 100644
index 0000000..0ef2870
--- /dev/null
+++ b/drivers/nxp/ddr/include/ddr.h
@@ -0,0 +1,151 @@
+/*
+ * Copyright 2021 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#ifndef DDR_H
+#define DDR_H
+
+#include "ddr_io.h"
+#include "dimm.h"
+#include "immap.h"
+
+#ifndef DDRC_NUM_CS
+#define DDRC_NUM_CS 4
+#endif
+
+/*
+ * This is irrespective of what is the number of DDR controller,
+ * number of DIMM used. This is set to maximum
+ * Max controllers = 2
+ * Max num of DIMM per controlle = 2
+ * MAX NUM CS = 4
+ * Not to be changed.
+ */
+#define MAX_DDRC_NUM	2
+#define MAX_DIMM_NUM	2
+#define MAX_CS_NUM	4
+
+#include "opts.h"
+#include "regs.h"
+#include "utility.h"
+
+#ifdef DDR_DEBUG
+#define debug(...) INFO(__VA_ARGS__)
+#else
+#define debug(...) VERBOSE(__VA_ARGS__)
+#endif
+
+#ifndef DDRC_NUM_DIMM
+#define DDRC_NUM_DIMM 1
+#endif
+
+#define CONFIG_CS_PER_SLOT \
+	(DDRC_NUM_CS / DDRC_NUM_DIMM)
+
+/* Record of register values computed */
+struct ddr_cfg_regs {
+	struct {
+		unsigned int bnds;
+		unsigned int config;
+		unsigned int config_2;
+	} cs[MAX_CS_NUM];
+	unsigned int dec[10];
+	unsigned int timing_cfg[10];
+	unsigned int sdram_cfg[3];
+	unsigned int sdram_mode[16];
+	unsigned int md_cntl;
+	unsigned int interval;
+	unsigned int data_init;
+	unsigned int clk_cntl;
+	unsigned int init_addr;
+	unsigned int init_ext_addr;
+	unsigned int zq_cntl;
+	unsigned int wrlvl_cntl[3];
+	unsigned int ddr_sr_cntr;
+	unsigned int sdram_rcw[6];
+	unsigned int dq_map[4];
+	unsigned int eor;
+	unsigned int cdr[2];
+	unsigned int err_disable;
+	unsigned int err_int_en;
+	unsigned int tx_cfg[4];
+	unsigned int debug[64];
+};
+
+struct ddr_conf {
+	int dimm_in_use[MAX_DIMM_NUM];
+	int cs_in_use;	/* bitmask, bit 0 for cs0, bit 1 for cs1, etc. */
+	int cs_on_dimm[MAX_DIMM_NUM];	/* bitmask */
+	unsigned long long cs_base_addr[MAX_CS_NUM];
+	unsigned long long cs_size[MAX_CS_NUM];
+	unsigned long long base_addr;
+	unsigned long long total_mem;
+};
+
+struct ddr_info {
+	unsigned long clk;
+	unsigned long long mem_base;
+	unsigned int num_ctlrs;
+	unsigned int dimm_on_ctlr;
+	struct dimm_params dimm;
+	struct memctl_opt opt;
+	struct ddr_conf conf;
+	struct ddr_cfg_regs ddr_reg;
+	struct ccsr_ddr *ddr[MAX_DDRC_NUM];
+	uint16_t *phy[MAX_DDRC_NUM];
+	int *spd_addr;
+	unsigned int ip_rev;
+	uintptr_t phy_gen2_fw_img_buf;
+	void *img_loadr;
+	int warm_boot_flag;
+};
+
+struct rc_timing {
+	unsigned int speed_bin;
+	unsigned int clk_adj;
+	unsigned int wrlvl;
+};
+
+struct board_timing {
+	unsigned int rc;
+	struct rc_timing const *p;
+	unsigned int add1;
+	unsigned int add2;
+};
+
+enum warm_boot {
+	DDR_COLD_BOOT = 0,
+	DDR_WARM_BOOT = 1,
+	DDR_WRM_BOOT_NT_SUPPORTED = -1,
+};
+
+int disable_unused_ddrc(struct ddr_info *priv, int mask,
+			uintptr_t nxp_ccn_hn_f0_addr);
+int ddr_board_options(struct ddr_info *priv);
+int compute_ddrc(const unsigned long clk,
+		 const struct memctl_opt *popts,
+		 const struct ddr_conf *conf,
+		 struct ddr_cfg_regs *ddr,
+		 const struct dimm_params *dimm_params,
+		 const unsigned int ip_rev);
+int compute_ddr_phy(struct ddr_info *priv);
+int ddrc_set_regs(const unsigned long clk,
+		  const struct ddr_cfg_regs *regs,
+		  const struct ccsr_ddr *ddr,
+		  int twopass);
+int cal_board_params(struct ddr_info *priv,
+		     const struct board_timing *dimm,
+		     int len);
+/* return bit mask of used DIMM(s) */
+int ddr_get_ddr_params(struct dimm_params *pdimm, struct ddr_conf *conf);
+long long dram_init(struct ddr_info *priv
+#if defined(NXP_HAS_CCN504) || defined(NXP_HAS_CCN508)
+		    , uintptr_t nxp_ccn_hn_f0_addr
+#endif
+		);
+long long board_static_ddr(struct ddr_info *info);
+
+#endif	/* DDR_H */