/*
 * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * Neither the name of ARM nor the names of its contributors may be used
 * to endorse or promote products derived from this software without specific
 * prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <string.h>
#include <stdint.h>
#include <dram.h>
#include "dram_spec_timing.h"

static const uint8_t ddr3_cl_cwl[][7] = {
	/*
	 * speed 0~330 331 ~ 400 401 ~ 533 534~666 667~800 801~933 934~1066
	 * tCK>3 2.5~3 1.875~2.5 1.5~1.875 1.25~1.5 1.07~1.25 0.938~1.07
	 * cl<<4, cwl  cl<<4, cwl  cl<<4, cwl
	 */
	/* DDR3_800D (5-5-5) */
	{((5 << 4) | 5), ((5 << 4) | 5), 0, 0, 0, 0, 0},
	/* DDR3_800E (6-6-6) */
	{((5 << 4) | 5), ((6 << 4) | 5), 0, 0, 0, 0, 0},
	/* DDR3_1066E (6-6-6) */
	{((5 << 4) | 5), ((5 << 4) | 5), ((6 << 4) | 6), 0, 0, 0, 0},
	/* DDR3_1066F (7-7-7) */
	{((5 << 4) | 5), ((6 << 4) | 5), ((7 << 4) | 6), 0, 0, 0, 0},
	/* DDR3_1066G (8-8-8) */
	{((5 << 4) | 5), ((6 << 4) | 5), ((8 << 4) | 6), 0, 0, 0, 0},
	/* DDR3_1333F (7-7-7) */
	{((5 << 4) | 5), ((5 << 4) | 5), ((6 << 4) | 6), ((7 << 4) | 7),
	 0, 0, 0},
	/* DDR3_1333G (8-8-8) */
	{((5 << 4) | 5), ((5 << 4) | 5), ((7 << 4) | 6), ((8 << 4) | 7),
	 0, 0, 0},
	/* DDR3_1333H (9-9-9) */
	{((5 << 4) | 5), ((6 << 4) | 5), ((8 << 4) | 6), ((9 << 4) | 7),
	 0, 0, 0},
	/* DDR3_1333J (10-10-10) */
	{((5 << 4) | 5), ((6 << 4) | 5), ((8 << 4) | 6), ((10 << 4) | 7),
	 0, 0, 0},
	/* DDR3_1600G (8-8-8) */
	{((5 << 4) | 5), ((5 << 4) | 5), ((6 << 4) | 6), ((7 << 4) | 7),
	 ((8 << 4) | 8), 0, 0},
	/* DDR3_1600H (9-9-9) */
	{((5 << 4) | 5), ((5 << 4) | 5), ((6 << 4) | 6), ((8 << 4) | 7),
	 ((9 << 4) | 8), 0, 0},
	/* DDR3_1600J (10-10-10) */
	{((5 << 4) | 5), ((5 << 4) | 5), ((7 << 4) | 6), ((9 << 4) | 7),
	 ((10 << 4) | 8), 0, 0},
	/* DDR3_1600K (11-11-11) */
	{((5 << 4) | 5), ((6 << 4) | 5), ((8 << 4) | 6), ((10 << 4) | 7),
	 ((11 << 4) | 8), 0, 0},
	/* DDR3_1866J (10-10-10) */
	{((5 << 4) | 5), ((5 << 4) | 5), ((6 << 4) | 6), ((8 << 4) | 7),
	 ((9 << 4) | 8), ((11 << 4) | 9), 0},
	/* DDR3_1866K (11-11-11) */
	{((5 << 4) | 5), ((5 << 4) | 5), ((7 << 4) | 6), ((8 << 4) | 7),
	 ((10 << 4) | 8), ((11 << 4) | 9), 0},
	/* DDR3_1866L (12-12-12) */
	{((6 << 4) | 5), ((6 << 4) | 5), ((7 << 4) | 6), ((9 << 4) | 7),
	 ((11 << 4) | 8), ((12 << 4) | 9), 0},
	/* DDR3_1866M (13-13-13) */
	{((6 << 4) | 5), ((6 << 4) | 5), ((8 << 4) | 6), ((10 << 4) | 7),
	 ((11 << 4) | 8), ((13 << 4) | 9), 0},
	/* DDR3_2133K (11-11-11) */
	{((5 << 4) | 5), ((5 << 4) | 5), ((6 << 4) | 6), ((7 << 4) | 7),
	 ((9 << 4) | 8), ((10 << 4) | 9), ((11 << 4) | 10)},
	/* DDR3_2133L (12-12-12) */
	{((5 << 4) | 5), ((5 << 4) | 5), ((6 << 4) | 6), ((8 << 4) | 7),
	 ((9 << 4) | 8), ((11 << 4) | 9), ((12 << 4) | 10)},
	/* DDR3_2133M (13-13-13) */
	{((5 << 4) | 5), ((5 << 4) | 5), ((7 << 4) | 6), ((9 << 4) | 7),
	 ((10 << 4) | 8), ((12 << 4) | 9), ((13 << 4) | 10)},
	/* DDR3_2133N (14-14-14) */
	{((6 << 4) | 5), ((6 << 4) | 5), ((7 << 4) | 6), ((9 << 4) | 7),
	 ((11 << 4) | 8), ((13 << 4) | 9), ((14 << 4) | 10)},
	/* DDR3_DEFAULT */
	{((6 << 4) | 5), ((6 << 4) | 5), ((8 << 4) | 6), ((10 << 4) | 7),
	 ((11 << 4) | 8), ((13 << 4) | 9), ((14 << 4) | 10)}
};

static const uint16_t ddr3_trc_tfaw[] = {
	/* tRC      tFAW */
	((50 << 8) | 50),	/* DDR3_800D (5-5-5) */
	((53 << 8) | 50),	/* DDR3_800E (6-6-6) */

	((49 << 8) | 50),	/* DDR3_1066E (6-6-6) */
	((51 << 8) | 50),	/* DDR3_1066F (7-7-7) */
	((53 << 8) | 50),	/* DDR3_1066G (8-8-8) */

	((47 << 8) | 45),	/* DDR3_1333F (7-7-7) */
	((48 << 8) | 45),	/* DDR3_1333G (8-8-8) */
	((50 << 8) | 45),	/* DDR3_1333H (9-9-9) */
	((51 << 8) | 45),	/* DDR3_1333J (10-10-10) */

	((45 << 8) | 40),	/* DDR3_1600G (8-8-8) */
	((47 << 8) | 40),	/* DDR3_1600H (9-9-9)*/
	((48 << 8) | 40),	/* DDR3_1600J (10-10-10) */
	((49 << 8) | 40),	/* DDR3_1600K (11-11-11) */

	((45 << 8) | 35),	/* DDR3_1866J (10-10-10) */
	((46 << 8) | 35),	/* DDR3_1866K (11-11-11) */
	((47 << 8) | 35),	/* DDR3_1866L (12-12-12) */
	((48 << 8) | 35),	/* DDR3_1866M (13-13-13) */

	((44 << 8) | 35),	/* DDR3_2133K (11-11-11) */
	((45 << 8) | 35),	/* DDR3_2133L (12-12-12) */
	((46 << 8) | 35),	/* DDR3_2133M (13-13-13) */
	((47 << 8) | 35),	/* DDR3_2133N (14-14-14) */

	((53 << 8) | 50)	/* DDR3_DEFAULT */
};

static uint32_t get_max_speed_rate(struct timing_related_config *timing_config)
{
	if (timing_config->ch_cnt > 1)
		return max(timing_config->dram_info[0].speed_rate,
					timing_config->dram_info[1].speed_rate);
	else
		return timing_config->dram_info[0].speed_rate;
}

static uint32_t
get_max_die_capability(struct timing_related_config *timing_config)
{
	uint32_t die_cap = 0;
	uint32_t cs, ch;

	for (ch = 0; ch < timing_config->ch_cnt; ch++) {
		for (cs = 0; cs < timing_config->dram_info[ch].cs_cnt; cs++) {
			die_cap = max(die_cap,
				      timing_config->
				      dram_info[ch].per_die_capability[cs]);
		}
	}
	return die_cap;
}

/* tRSTL, 100ns */
#define DDR3_TRSTL		(100)
/* trsth, 500us */
#define DDR3_TRSTH		(500000)
/* trefi, 7.8us */
#define DDR3_TREFI_7_8_US	(7800)
/* tWR, 15ns */
#define DDR3_TWR		(15)
/* tRTP, max(4 tCK,7.5ns) */
#define DDR3_TRTP		(7)
/* tRRD = max(4nCK, 10ns) */
#define DDR3_TRRD		(10)
/* tCK */
#define DDR3_TCCD		(4)
/*tWTR, max(4 tCK,7.5ns)*/
#define DDR3_TWTR		(7)
/* tCK */
#define DDR3_TRTW		(0)
/* tRAS, 37.5ns(400MHz) 37.5ns(533MHz) */
#define DDR3_TRAS		(37)
/* ns */
#define DDR3_TRFC_512MBIT	(90)
/* ns */
#define DDR3_TRFC_1GBIT		(110)
/* ns */
#define DDR3_TRFC_2GBIT		(160)
/* ns */
#define DDR3_TRFC_4GBIT		(300)
/* ns */
#define DDR3_TRFC_8GBIT		(350)

/*pd and sr*/
#define DDR3_TXP		(7) /* tXP, max(3 tCK, 7.5ns)( < 933MHz) */
#define DDR3_TXPDLL		(24) /* tXPDLL, max(10 tCK, 24ns) */
#define DDR3_TDLLK		(512) /* tXSR, tDLLK=512 tCK */
#define DDR3_TCKE_400MHZ	(7) /* tCKE, max(3 tCK,7.5ns)(400MHz) */
#define DDR3_TCKE_533MHZ	(6) /* tCKE, max(3 tCK,5.625ns)(533MHz) */
#define DDR3_TCKSRE		(10) /* tCKSRX, max(5 tCK, 10ns) */

/*mode register timing*/
#define DDR3_TMOD		(15) /* tMOD, max(12 tCK,15ns) */
#define DDR3_TMRD		(4) /* tMRD, 4 tCK */

/* ZQ */
#define DDR3_TZQINIT		(640) /* tZQinit, max(512 tCK, 640ns) */
#define DDR3_TZQCS		(80) /* tZQCS, max(64 tCK, 80ns) */
#define DDR3_TZQOPER		(320) /* tZQoper, max(256 tCK, 320ns) */

/* Write leveling */
#define DDR3_TWLMRD		(40) /* tCK */
#define DDR3_TWLO		(9) /* max 7.5ns */
#define DDR3_TWLDQSEN		(25) /* tCK */

/*
 * Description: depend on input parameter "timing_config",
 *		and calculate all ddr3
 *		spec timing to "pdram_timing"
 * parameters:
 *   input: timing_config
 *   output: pdram_timing
 */
static void ddr3_get_parameter(struct timing_related_config *timing_config,
			       struct dram_timing_t *pdram_timing)
{
	uint32_t nmhz = timing_config->freq;
	uint32_t ddr_speed_bin = get_max_speed_rate(timing_config);
	uint32_t ddr_capability_per_die = get_max_die_capability(timing_config);
	uint32_t tmp;

	memset((void *)pdram_timing, 0, sizeof(struct dram_timing_t));
	pdram_timing->mhz = nmhz;
	pdram_timing->al = 0;
	pdram_timing->bl = timing_config->bl;
	if (nmhz <= 330)
		tmp = 0;
	else if (nmhz <= 400)
		tmp = 1;
	else if (nmhz <= 533)
		tmp = 2;
	else if (nmhz <= 666)
		tmp = 3;
	else if (nmhz <= 800)
		tmp = 4;
	else if (nmhz <= 933)
		tmp = 5;
	else
		tmp = 6;

	/* when dll bypss cl = cwl = 6 */
	if (nmhz < 300) {
		pdram_timing->cl = 6;
		pdram_timing->cwl = 6;
	} else {
		pdram_timing->cl = (ddr3_cl_cwl[ddr_speed_bin][tmp] >> 4) & 0xf;
		pdram_timing->cwl = ddr3_cl_cwl[ddr_speed_bin][tmp] & 0xf;
	}

	switch (timing_config->dramds) {
	case 40:
		tmp = DDR3_DS_40;
		break;
	case 34:
	default:
		tmp = DDR3_DS_34;
		break;
	}

	switch (timing_config->dramodt) {
	case 60:
		pdram_timing->mr[1] = tmp | DDR3_RTT_NOM_60;
		break;
	case 40:
		pdram_timing->mr[1] = tmp | DDR3_RTT_NOM_40;
		break;
	case 120:
		pdram_timing->mr[1] = tmp | DDR3_RTT_NOM_120;
		break;
	case 0:
	default:
		pdram_timing->mr[1] = tmp | DDR3_RTT_NOM_DIS;
		break;
	}

	pdram_timing->mr[2] = DDR3_MR2_CWL(pdram_timing->cwl);
	pdram_timing->mr[3] = 0;

	pdram_timing->trstl = ((DDR3_TRSTL * nmhz + 999) / 1000);
	pdram_timing->trsth = ((DDR3_TRSTH * nmhz + 999) / 1000);
	/* tREFI, average periodic refresh interval, 7.8us */
	pdram_timing->trefi = ((DDR3_TREFI_7_8_US * nmhz + 999) / 1000);
	/* base timing */
	pdram_timing->trcd = pdram_timing->cl;
	pdram_timing->trp = pdram_timing->cl;
	pdram_timing->trppb = pdram_timing->cl;
	tmp = ((DDR3_TWR * nmhz + 999) / 1000);
	pdram_timing->twr = tmp;
	pdram_timing->tdal = tmp + pdram_timing->trp;
	if (tmp < 9) {
		tmp = tmp - 4;
	} else {
		tmp += (tmp & 0x1) ? 1 : 0;
		tmp = tmp >> 1;
	}
	if (pdram_timing->bl == 4)
		pdram_timing->mr[0] = DDR3_BC4
				| DDR3_CL(pdram_timing->cl)
				| DDR3_WR(tmp);
	else
		pdram_timing->mr[0] = DDR3_BL8
				| DDR3_CL(pdram_timing->cl)
				| DDR3_WR(tmp);
	tmp = ((DDR3_TRTP * nmhz + (nmhz >> 1) + 999) / 1000);
	pdram_timing->trtp = max(4, tmp);
	pdram_timing->trc =
		(((ddr3_trc_tfaw[ddr_speed_bin] >> 8) * nmhz + 999) / 1000);
	tmp = ((DDR3_TRRD * nmhz + 999) / 1000);
	pdram_timing->trrd = max(4, tmp);
	pdram_timing->tccd = DDR3_TCCD;
	tmp = ((DDR3_TWTR * nmhz + (nmhz >> 1) + 999) / 1000);
	pdram_timing->twtr = max(4, tmp);
	pdram_timing->trtw = DDR3_TRTW;
	pdram_timing->tras_max = 9 * pdram_timing->trefi;
	pdram_timing->tras_min = ((DDR3_TRAS * nmhz + (nmhz >> 1) + 999)
		/ 1000);
	pdram_timing->tfaw =
		(((ddr3_trc_tfaw[ddr_speed_bin] & 0x0ff) * nmhz + 999)
						/ 1000);
	/* tRFC, 90ns(512Mb),110ns(1Gb),160ns(2Gb),300ns(4Gb),350ns(8Gb) */
	if (ddr_capability_per_die <= 0x4000000)
		tmp = DDR3_TRFC_512MBIT;
	else if (ddr_capability_per_die <= 0x8000000)
		tmp = DDR3_TRFC_1GBIT;
	else if (ddr_capability_per_die <= 0x10000000)
		tmp = DDR3_TRFC_2GBIT;
	else if (ddr_capability_per_die <= 0x20000000)
		tmp = DDR3_TRFC_4GBIT;
	else
		tmp = DDR3_TRFC_8GBIT;
	pdram_timing->trfc = (tmp * nmhz + 999) / 1000;
	pdram_timing->txsnr = max(5, (((tmp + 10) * nmhz + 999) / 1000));
	pdram_timing->tdqsck_max = 0;
	/*pd and sr*/
	pdram_timing->txsr = DDR3_TDLLK;
	tmp = ((DDR3_TXP * nmhz + (nmhz >> 1) + 999) / 1000);
	pdram_timing->txp = max(3, tmp);
	tmp = ((DDR3_TXPDLL * nmhz + 999) / 1000);
	pdram_timing->txpdll = max(10, tmp);
	pdram_timing->tdllk = DDR3_TDLLK;
	if (nmhz >= 533)
		tmp = ((DDR3_TCKE_533MHZ * nmhz + 999) / 1000);
	else
		tmp = ((DDR3_TCKE_400MHZ * nmhz + (nmhz >> 1) + 999) / 1000);
	pdram_timing->tcke = max(3, tmp);
	pdram_timing->tckesr = (pdram_timing->tcke + 1);
	tmp = ((DDR3_TCKSRE * nmhz + 999) / 1000);
	pdram_timing->tcksre = max(5, tmp);
	pdram_timing->tcksrx = max(5, tmp);
	/*mode register timing*/
	tmp = ((DDR3_TMOD * nmhz + 999) / 1000);
	pdram_timing->tmod = max(12, tmp);
	pdram_timing->tmrd = DDR3_TMRD;
	pdram_timing->tmrr = 0;
	/*ODT*/
	pdram_timing->todton = pdram_timing->cwl - 2;
	/*ZQ*/
	tmp = ((DDR3_TZQINIT * nmhz + 999) / 1000);
	pdram_timing->tzqinit = max(512, tmp);
	tmp = ((DDR3_TZQCS * nmhz + 999) / 1000);
	pdram_timing->tzqcs = max(64, tmp);
	tmp = ((DDR3_TZQOPER * nmhz + 999) / 1000);
	pdram_timing->tzqoper = max(256, tmp);
	/* write leveling */
	pdram_timing->twlmrd = DDR3_TWLMRD;
	pdram_timing->twldqsen = DDR3_TWLDQSEN;
	pdram_timing->twlo = ((DDR3_TWLO * nmhz + (nmhz >> 1) + 999) / 1000);
}

#define LPDDR2_TINIT1		(100) /* ns */
#define LPDDR2_TINIT2		(5) /* tCK */
#define LPDDR2_TINIT3		(200000) /* 200us */
#define LPDDR2_TINIT4		(1000) /* 1us */
#define LPDDR2_TINIT5		(10000) /* 10us */
#define LPDDR2_TRSTL		(0) /* tCK */
#define LPDDR2_TRSTH		(500000) /* 500us */
#define LPDDR2_TREFI_3_9_US	(3900) /* 3.9us */
#define LPDDR2_TREFI_7_8_US	(7800) /* 7.8us */

/* base timing */
#define LPDDR2_TRCD		(24) /* tRCD,15ns(Fast)18ns(Typ)24ns(Slow) */
#define LPDDR2_TRP_PB		(18) /* tRPpb,15ns(Fast)18ns(Typ)24ns(Slow) */
#define LPDDR2_TRP_AB_8_BANK	(21) /* tRPab,18ns(Fast)21ns(Typ)27ns(Slow) */
#define LPDDR2_TWR		(15) /* tWR, max(3tCK,15ns) */
#define LPDDR2_TRTP		(7) /* tRTP, max(2tCK, 7.5ns) */
#define LPDDR2_TRRD		(10) /* tRRD, max(2tCK,10ns) */
#define LPDDR2_TCCD		(2) /* tCK */
#define LPDDR2_TWTR_GREAT_200MHZ	(7) /* ns */
#define LPDDR2_TWTR_LITTLE_200MHZ	(10) /* ns */
#define LPDDR2_TRTW		(0) /* tCK */
#define LPDDR2_TRAS_MAX		(70000) /* 70us */
#define LPDDR2_TRAS		(42) /* tRAS, max(3tCK,42ns) */
#define LPDDR2_TFAW_GREAT_200MHZ	(50) /* max(8tCK,50ns) */
#define LPDDR2_TFAW_LITTLE_200MHZ	(60) /* max(8tCK,60ns) */
#define LPDDR2_TRFC_8GBIT	(210) /* ns */
#define LPDDR2_TRFC_4GBIT	(130) /* ns */
#define LPDDR2_TDQSCK_MIN	(2) /* tDQSCKmin, 2.5ns */
#define LPDDR2_TDQSCK_MAX	(5) /* tDQSCKmax, 5.5ns */

/*pd and sr*/
#define LPDDR2_TXP		(7) /* tXP, max(2tCK,7.5ns) */
#define LPDDR2_TXPDLL		(0)
#define LPDDR2_TDLLK		(0) /* tCK */
#define LPDDR2_TCKE		(3) /* tCK */
#define LPDDR2_TCKESR		(15) /* tCKESR, max(3tCK,15ns) */
#define LPDDR2_TCKSRE		(1) /* tCK */
#define LPDDR2_TCKSRX		(2) /* tCK */

/*mode register timing*/
#define LPDDR2_TMOD		(0)
#define LPDDR2_TMRD		(5) /* tMRD, (=tMRW), 5 tCK */
#define LPDDR2_TMRR		(2) /* tCK */

/*ZQ*/
#define LPDDR2_TZQINIT		(1000) /* ns */
#define LPDDR2_TZQCS		(90) /* tZQCS, max(6tCK,90ns) */
#define LPDDR2_TZQCL		(360) /* tZQCL, max(6tCK,360ns) */
#define LPDDR2_TZQRESET		(50) /* ZQreset, max(3tCK,50ns) */

/*
 * Description: depend on input parameter "timing_config",
 *		and calculate all lpddr2
 *		spec timing to "pdram_timing"
 * parameters:
 *   input: timing_config
 *   output: pdram_timing
 */
static void lpddr2_get_parameter(struct timing_related_config *timing_config,
				 struct dram_timing_t *pdram_timing)
{
	uint32_t nmhz = timing_config->freq;
	uint32_t ddr_capability_per_die = get_max_die_capability(timing_config);
	uint32_t tmp, trp_tmp, trppb_tmp, tras_tmp, twr_tmp, bl_tmp;

	memset((void *)pdram_timing, 0, sizeof(struct dram_timing_t));
	pdram_timing->mhz = nmhz;
	pdram_timing->al = 0;
	pdram_timing->bl = timing_config->bl;

	/*	   1066 933 800 667 533 400 333
	 * RL,	 8	 7	 6	 5	 4	 3	 3
	 * WL,	 4	 4	 3	 2	 2	 1	 1
	 */
	if (nmhz <= 266) {
		pdram_timing->cl = 4;
		pdram_timing->cwl = 2;
		pdram_timing->mr[2] = LPDDR2_RL4_WL2;
	} else if (nmhz <= 333) {
		pdram_timing->cl = 5;
		pdram_timing->cwl = 2;
		pdram_timing->mr[2] = LPDDR2_RL5_WL2;
	} else if (nmhz <= 400) {
		pdram_timing->cl = 6;
		pdram_timing->cwl = 3;
		pdram_timing->mr[2] = LPDDR2_RL6_WL3;
	} else if (nmhz <= 466) {
		pdram_timing->cl = 7;
		pdram_timing->cwl = 4;
		pdram_timing->mr[2] = LPDDR2_RL7_WL4;
	} else {
		pdram_timing->cl = 8;
		pdram_timing->cwl = 4;
		pdram_timing->mr[2] = LPDDR2_RL8_WL4;
	}
	switch (timing_config->dramds) {
	case 120:
		pdram_timing->mr[3] = LPDDR2_DS_120;
		break;
	case 80:
		pdram_timing->mr[3] = LPDDR2_DS_80;
		break;
	case 60:
		pdram_timing->mr[3] = LPDDR2_DS_60;
		break;
	case 48:
		pdram_timing->mr[3] = LPDDR2_DS_48;
		break;
	case 40:
		pdram_timing->mr[3] = LPDDR2_DS_40;
		break;
	case 34:
	default:
		pdram_timing->mr[3] = LPDDR2_DS_34;
		break;
	}
	pdram_timing->mr[0] = 0;

	pdram_timing->tinit1 = (LPDDR2_TINIT1 * nmhz + 999) / 1000;
	pdram_timing->tinit2 = LPDDR2_TINIT2;
	pdram_timing->tinit3 = (LPDDR2_TINIT3 * nmhz + 999) / 1000;
	pdram_timing->tinit4 = (LPDDR2_TINIT4 * nmhz + 999) / 1000;
	pdram_timing->tinit5 = (LPDDR2_TINIT5 * nmhz + 999) / 1000;
	pdram_timing->trstl = LPDDR2_TRSTL;
	pdram_timing->trsth = (LPDDR2_TRSTH * nmhz + 999) / 1000;
	/*
	 * tREFI, average periodic refresh interval,
	 * 15.6us(<256Mb) 7.8us(256Mb-1Gb) 3.9us(2Gb-8Gb)
	 */
	if (ddr_capability_per_die >= 0x10000000)
		pdram_timing->trefi = (LPDDR2_TREFI_3_9_US * nmhz + 999)
							/ 1000;
	else
		pdram_timing->trefi = (LPDDR2_TREFI_7_8_US * nmhz + 999)
							/ 1000;
	/* base timing */
	tmp = ((LPDDR2_TRCD * nmhz + 999) / 1000);
	pdram_timing->trcd = max(3, tmp);
	/*
	 * tRPpb, max(3tCK, 15ns(Fast) 18ns(Typ) 24ns(Slow),
	 */
	trppb_tmp = ((LPDDR2_TRP_PB * nmhz + 999) / 1000);
	trppb_tmp = max(3, trppb_tmp);
	pdram_timing->trppb = trppb_tmp;
	/*
	 * tRPab, max(3tCK, 4-bank:15ns(Fast) 18ns(Typ) 24ns(Slow),
	 *	8-bank:18ns(Fast) 21ns(Typ) 27ns(Slow))
	 */
	trp_tmp = ((LPDDR2_TRP_AB_8_BANK * nmhz + 999) / 1000);
	trp_tmp = max(3, trp_tmp);
	pdram_timing->trp = trp_tmp;
	twr_tmp = ((LPDDR2_TWR * nmhz + 999) / 1000);
	twr_tmp = max(3, twr_tmp);
	pdram_timing->twr = twr_tmp;
	bl_tmp = (pdram_timing->bl == 16) ? LPDDR2_BL16 :
			((pdram_timing->bl == 8) ? LPDDR2_BL8 : LPDDR2_BL4);
	pdram_timing->mr[1] = bl_tmp | LPDDR2_N_WR(twr_tmp);
	tmp = ((LPDDR2_TRTP * nmhz + (nmhz >> 1) + 999) / 1000);
	pdram_timing->trtp = max(2, tmp);
	tras_tmp = ((LPDDR2_TRAS * nmhz + 999) / 1000);
	tras_tmp = max(3, tras_tmp);
	pdram_timing->tras_min = tras_tmp;
	pdram_timing->tras_max = ((LPDDR2_TRAS_MAX * nmhz + 999) / 1000);
	pdram_timing->trc = (tras_tmp + trp_tmp);
	tmp = ((LPDDR2_TRRD * nmhz + 999) / 1000);
	pdram_timing->trrd = max(2, tmp);
	pdram_timing->tccd = LPDDR2_TCCD;
	/* tWTR, max(2tCK, 7.5ns(533-266MHz)  10ns(200-166MHz)) */
	if (nmhz > 200)
		tmp = ((LPDDR2_TWTR_GREAT_200MHZ * nmhz + (nmhz >> 1) +
			  999) / 1000);
	else
		tmp = ((LPDDR2_TWTR_LITTLE_200MHZ * nmhz + 999) / 1000);
	pdram_timing->twtr = max(2, tmp);
	pdram_timing->trtw = LPDDR2_TRTW;
	if (nmhz <= 200)
		pdram_timing->tfaw = (LPDDR2_TFAW_LITTLE_200MHZ * nmhz + 999)
							/ 1000;
	else
		pdram_timing->tfaw = (LPDDR2_TFAW_GREAT_200MHZ * nmhz + 999)
							/ 1000;
	/* tRFC, 90ns(<=512Mb) 130ns(1Gb-4Gb) 210ns(8Gb) */
	if (ddr_capability_per_die >= 0x40000000) {
		pdram_timing->trfc =
			(LPDDR2_TRFC_8GBIT * nmhz + 999) / 1000;
		tmp = (((LPDDR2_TRFC_8GBIT + 10) * nmhz + 999) / 1000);
	} else {
		pdram_timing->trfc =
			(LPDDR2_TRFC_4GBIT * nmhz + 999) / 1000;
		tmp = (((LPDDR2_TRFC_4GBIT + 10) * nmhz + 999) / 1000);
	}
	if (tmp < 2)
		tmp = 2;
	pdram_timing->txsr = tmp;
	pdram_timing->txsnr = tmp;
	/* tdqsck use rounded down */
	pdram_timing->tdqsck = ((LPDDR2_TDQSCK_MIN * nmhz + (nmhz >> 1))
					/ 1000);
	pdram_timing->tdqsck_max =
			((LPDDR2_TDQSCK_MAX * nmhz + (nmhz >> 1) + 999)
					/ 1000);
	/* pd and sr */
	tmp = ((LPDDR2_TXP * nmhz + (nmhz >> 1) + 999) / 1000);
	pdram_timing->txp = max(2, tmp);
	pdram_timing->txpdll = LPDDR2_TXPDLL;
	pdram_timing->tdllk = LPDDR2_TDLLK;
	pdram_timing->tcke = LPDDR2_TCKE;
	tmp = ((LPDDR2_TCKESR * nmhz + 999) / 1000);
	pdram_timing->tckesr = max(3, tmp);
	pdram_timing->tcksre = LPDDR2_TCKSRE;
	pdram_timing->tcksrx = LPDDR2_TCKSRX;
	/* mode register timing */
	pdram_timing->tmod = LPDDR2_TMOD;
	pdram_timing->tmrd = LPDDR2_TMRD;
	pdram_timing->tmrr = LPDDR2_TMRR;
	/* ZQ */
	pdram_timing->tzqinit = (LPDDR2_TZQINIT * nmhz + 999) / 1000;
	tmp = ((LPDDR2_TZQCS * nmhz + 999) / 1000);
	pdram_timing->tzqcs = max(6, tmp);
	tmp = ((LPDDR2_TZQCL * nmhz + 999) / 1000);
	pdram_timing->tzqoper = max(6, tmp);
	tmp = ((LPDDR2_TZQRESET * nmhz + 999) / 1000);
	pdram_timing->tzqreset = max(3, tmp);
}

#define LPDDR3_TINIT1		(100) /* ns */
#define LPDDR3_TINIT2		(5) /* tCK */
#define LPDDR3_TINIT3		(200000) /* 200us */
#define LPDDR3_TINIT4		(1000) /* 1us */
#define LPDDR3_TINIT5		(10000) /* 10us */
#define LPDDR3_TRSTL		(0)
#define LPDDR3_TRSTH		(0) /* 500us */
#define LPDDR3_TREFI_3_9_US	(3900) /* 3.9us */

/* base timging */
#define LPDDR3_TRCD	(18) /* tRCD,15ns(Fast)18ns(Typ)24ns(Slow) */
#define LPDDR3_TRP_PB	(18) /* tRPpb, 15ns(Fast) 18ns(Typ) 24ns(Slow) */
#define LPDDR3_TRP_AB	(21) /* tRPab, 18ns(Fast) 21ns(Typ) 27ns(Slow) */
#define LPDDR3_TWR	(15) /* tWR, max(4tCK,15ns) */
#define LPDDR3_TRTP	(7) /* tRTP, max(4tCK, 7.5ns) */
#define LPDDR3_TRRD	(10) /* tRRD, max(2tCK,10ns) */
#define LPDDR3_TCCD	(4) /* tCK */
#define LPDDR3_TWTR	(7) /* tWTR, max(4tCK, 7.5ns) */
#define LPDDR3_TRTW	(0) /* tCK register min valid value */
#define LPDDR3_TRAS_MAX	(70000) /* 70us */
#define LPDDR3_TRAS	(42) /* tRAS, max(3tCK,42ns) */
#define LPDDR3_TFAW	(50) /* tFAW,max(8tCK, 50ns) */
#define LPDDR3_TRFC_8GBIT	(210) /* tRFC, 130ns(4Gb) 210ns(>4Gb) */
#define LPDDR3_TRFC_4GBIT	(130) /* ns */
#define LPDDR3_TDQSCK_MIN	(2) /* tDQSCKmin,2.5ns */
#define LPDDR3_TDQSCK_MAX	(5) /* tDQSCKmax,5.5ns */

/* pd and sr */
#define LPDDR3_TXP	(7) /* tXP, max(3tCK,7.5ns) */
#define LPDDR3_TXPDLL	(0)
#define LPDDR3_TCKE	(7) /* tCKE, (max 7.5ns,3 tCK) */
#define LPDDR3_TCKESR	(15) /* tCKESR, max(3tCK,15ns) */
#define LPDDR3_TCKSRE	(2) /* tCKSRE=tCPDED, 2 tCK */
#define LPDDR3_TCKSRX	(2) /* tCKSRX, 2 tCK */

/* mode register timing */
#define LPDDR3_TMOD	(0)
#define LPDDR3_TMRD	(14) /* tMRD, (=tMRW), max(14ns, 10 tCK) */
#define LPDDR3_TMRR	(4) /* tMRR, 4 tCK */
#define LPDDR3_TMRRI	LPDDR3_TRCD

/* ODT */
#define LPDDR3_TODTON	(3) /* 3.5ns */

/* ZQ */
#define LPDDR3_TZQINIT	(1000) /* 1us */
#define LPDDR3_TZQCS	(90) /* tZQCS, 90ns */
#define LPDDR3_TZQCL	(360) /* 360ns */
#define LPDDR3_TZQRESET	(50) /* ZQreset, max(3tCK,50ns) */
/* write leveling */
#define LPDDR3_TWLMRD	(40) /* ns */
#define LPDDR3_TWLO	(20) /* ns */
#define LPDDR3_TWLDQSEN	(25) /* ns */
/* CA training */
#define LPDDR3_TCACKEL	(10) /* tCK */
#define LPDDR3_TCAENT	(10) /* tCK */
#define LPDDR3_TCAMRD	(20) /* tCK */
#define LPDDR3_TCACKEH	(10) /* tCK */
#define LPDDR3_TCAEXT	(10) /* tCK */
#define LPDDR3_TADR	(20) /* ns */
#define LPDDR3_TMRZ	(3) /* ns */

/*
 * Description: depend on input parameter "timing_config",
 *		and calculate all lpddr3
 *		spec timing to "pdram_timing"
 * parameters:
 *   input: timing_config
 *   output: pdram_timing
 */
static void lpddr3_get_parameter(struct timing_related_config *timing_config,
				 struct dram_timing_t *pdram_timing)
{
	uint32_t nmhz = timing_config->freq;
	uint32_t ddr_capability_per_die = get_max_die_capability(timing_config);
	uint32_t tmp, trp_tmp, trppb_tmp, tras_tmp, twr_tmp, bl_tmp;

	memset((void *)pdram_timing, 0, sizeof(struct dram_timing_t));
	pdram_timing->mhz = nmhz;
	pdram_timing->al = 0;
	pdram_timing->bl = timing_config->bl;

	/*
	 * Only support Write Latency Set A here
	 *     1066 933 800 733 667 600 533 400 166
	 * RL, 16   14  12  11  10  9   8   6   3
	 * WL, 8    8   6   6   6   5   4   3   1
	 */
	if (nmhz <= 400) {
		pdram_timing->cl = 6;
		pdram_timing->cwl = 3;
		pdram_timing->mr[2] = LPDDR3_RL6_WL3;
	} else if (nmhz <= 533) {
		pdram_timing->cl = 8;
		pdram_timing->cwl = 4;
		pdram_timing->mr[2] = LPDDR3_RL8_WL4;
	} else if (nmhz <= 600) {
		pdram_timing->cl = 9;
		pdram_timing->cwl = 5;
		pdram_timing->mr[2] = LPDDR3_RL9_WL5;
	} else if (nmhz <= 667) {
		pdram_timing->cl = 10;
		pdram_timing->cwl = 6;
		pdram_timing->mr[2] = LPDDR3_RL10_WL6;
	} else if (nmhz <= 733) {
		pdram_timing->cl = 11;
		pdram_timing->cwl = 6;
		pdram_timing->mr[2] = LPDDR3_RL11_WL6;
	} else if (nmhz <= 800) {
		pdram_timing->cl = 12;
		pdram_timing->cwl = 6;
		pdram_timing->mr[2] = LPDDR3_RL12_WL6;
	} else if (nmhz <= 933) {
		pdram_timing->cl = 14;
		pdram_timing->cwl = 8;
		pdram_timing->mr[2] = LPDDR3_RL14_WL8;
	} else {
		pdram_timing->cl = 16;
		pdram_timing->cwl = 8;
		pdram_timing->mr[2] = LPDDR3_RL16_WL8;
	}
	switch (timing_config->dramds) {
	case 80:
		pdram_timing->mr[3] = LPDDR3_DS_80;
		break;
	case 60:
		pdram_timing->mr[3] = LPDDR3_DS_60;
		break;
	case 48:
		pdram_timing->mr[3] = LPDDR3_DS_48;
		break;
	case 40:
		pdram_timing->mr[3] = LPDDR3_DS_40;
		break;
	case 3440:
		pdram_timing->mr[3] = LPDDR3_DS_34D_40U;
		break;
	case 4048:
		pdram_timing->mr[3] = LPDDR3_DS_40D_48U;
		break;
	case 3448:
		pdram_timing->mr[3] = LPDDR3_DS_34D_48U;
		break;
	case 34:
	default:
		pdram_timing->mr[3] = LPDDR3_DS_34;
		break;
	}
	pdram_timing->mr[0] = 0;
	switch (timing_config->dramodt) {
	case 60:
		pdram_timing->mr11 = LPDDR3_ODT_60;
		break;
	case 120:
		pdram_timing->mr11 = LPDDR3_ODT_120;
		break;
	case 240:
	default:
		pdram_timing->mr11 = LPDDR3_ODT_240;
		break;
	}

	pdram_timing->tinit1 = (LPDDR3_TINIT1 * nmhz + 999) / 1000;
	pdram_timing->tinit2 = LPDDR3_TINIT2;
	pdram_timing->tinit3 = (LPDDR3_TINIT3 * nmhz + 999) / 1000;
	pdram_timing->tinit4 = (LPDDR3_TINIT4 * nmhz + 999) / 1000;
	pdram_timing->tinit5 = (LPDDR3_TINIT5 * nmhz + 999) / 1000;
	pdram_timing->trstl = LPDDR3_TRSTL;
	pdram_timing->trsth = (LPDDR3_TRSTH * nmhz + 999) / 1000;
	/* tREFI, average periodic refresh interval, 3.9us(4Gb-16Gb) */
	pdram_timing->trefi = (LPDDR3_TREFI_3_9_US * nmhz + 999) / 1000;
	/* base timing */
	tmp = ((LPDDR3_TRCD * nmhz + 999) / 1000);
	pdram_timing->trcd = max(3, tmp);
	trppb_tmp = ((LPDDR3_TRP_PB * nmhz + 999) / 1000);
	trppb_tmp = max(3, trppb_tmp);
	pdram_timing->trppb = trppb_tmp;
	trp_tmp = ((LPDDR3_TRP_AB * nmhz + 999) / 1000);
	trp_tmp = max(3, trp_tmp);
	pdram_timing->trp = trp_tmp;
	twr_tmp = ((LPDDR3_TWR * nmhz + 999) / 1000);
	twr_tmp = max(4, twr_tmp);
	pdram_timing->twr = twr_tmp;
	if (twr_tmp <= 6)
		twr_tmp = 6;
	else if (twr_tmp <= 8)
		twr_tmp = 8;
	else if (twr_tmp <= 12)
		twr_tmp = twr_tmp;
	else if (twr_tmp <= 14)
		twr_tmp = 14;
	else
		twr_tmp = 16;
	if (twr_tmp > 9)
		pdram_timing->mr[2] |= (1 << 4); /*enable nWR > 9*/
	twr_tmp = (twr_tmp > 9) ? (twr_tmp - 10) : (twr_tmp - 2);
	bl_tmp = LPDDR3_BL8;
	pdram_timing->mr[1] = bl_tmp | LPDDR3_N_WR(twr_tmp);
	tmp = ((LPDDR3_TRTP * nmhz + (nmhz >> 1) + 999) / 1000);
	pdram_timing->trtp = max(4, tmp);
	tras_tmp = ((LPDDR3_TRAS * nmhz + 999) / 1000);
	tras_tmp = max(3, tras_tmp);
	pdram_timing->tras_min = tras_tmp;
	pdram_timing->trc = (tras_tmp + trp_tmp);
	tmp = ((LPDDR3_TRRD * nmhz + 999) / 1000);
	pdram_timing->trrd = max(2, tmp);
	pdram_timing->tccd = LPDDR3_TCCD;
	tmp = ((LPDDR3_TWTR * nmhz + (nmhz >> 1) + 999) / 1000);
	pdram_timing->twtr = max(4, tmp);
	pdram_timing->trtw =  ((LPDDR3_TRTW * nmhz + 999) / 1000);
	pdram_timing->tras_max = ((LPDDR3_TRAS_MAX * nmhz + 999) / 1000);
	tmp = (LPDDR3_TFAW * nmhz + 999) / 1000;
	pdram_timing->tfaw = max(8, tmp);
	if (ddr_capability_per_die > 0x20000000) {
		pdram_timing->trfc =
			(LPDDR3_TRFC_8GBIT * nmhz + 999) / 1000;
		tmp = (((LPDDR3_TRFC_8GBIT + 10) * nmhz + 999) / 1000);
	} else {
		pdram_timing->trfc =
			(LPDDR3_TRFC_4GBIT * nmhz + 999) / 1000;
		tmp = (((LPDDR3_TRFC_4GBIT + 10) * nmhz + 999) / 1000);
	}
	pdram_timing->txsr = max(2, tmp);
	pdram_timing->txsnr = max(2, tmp);
	/* tdqsck use rounded down */
	pdram_timing->tdqsck =
			((LPDDR3_TDQSCK_MIN * nmhz + (nmhz >> 1))
					/ 1000);
	pdram_timing->tdqsck_max =
			((LPDDR3_TDQSCK_MAX * nmhz + (nmhz >> 1) + 999)
					/ 1000);
	/*pd and sr*/
	tmp = ((LPDDR3_TXP * nmhz + (nmhz >> 1) + 999) / 1000);
	pdram_timing->txp = max(3, tmp);
	pdram_timing->txpdll = LPDDR3_TXPDLL;
	tmp = ((LPDDR3_TCKE * nmhz + (nmhz >> 1) + 999) / 1000);
	pdram_timing->tcke = max(3, tmp);
	tmp = ((LPDDR3_TCKESR * nmhz + 999) / 1000);
	pdram_timing->tckesr = max(3, tmp);
	pdram_timing->tcksre = LPDDR3_TCKSRE;
	pdram_timing->tcksrx = LPDDR3_TCKSRX;
	/*mode register timing*/
	pdram_timing->tmod = LPDDR3_TMOD;
	tmp = ((LPDDR3_TMRD * nmhz + 999) / 1000);
	pdram_timing->tmrd = max(10, tmp);
	pdram_timing->tmrr = LPDDR3_TMRR;
	tmp = ((LPDDR3_TRCD * nmhz + 999) / 1000);
	pdram_timing->tmrri = max(3, tmp);
	/* ODT */
	pdram_timing->todton = (LPDDR3_TODTON * nmhz + (nmhz >> 1) + 999)
				/ 1000;
	/* ZQ */
	pdram_timing->tzqinit = (LPDDR3_TZQINIT * nmhz + 999) / 1000;
	pdram_timing->tzqcs =
		((LPDDR3_TZQCS * nmhz + 999) / 1000);
	pdram_timing->tzqoper =
		((LPDDR3_TZQCL * nmhz + 999) / 1000);
	tmp = ((LPDDR3_TZQRESET * nmhz + 999) / 1000);
	pdram_timing->tzqreset = max(3, tmp);
	/* write leveling */
	pdram_timing->twlmrd = (LPDDR3_TWLMRD * nmhz + 999) / 1000;
	pdram_timing->twlo = (LPDDR3_TWLO * nmhz + 999) / 1000;
	pdram_timing->twldqsen = (LPDDR3_TWLDQSEN * nmhz + 999) / 1000;
	/* CA training */
	pdram_timing->tcackel = LPDDR3_TCACKEL;
	pdram_timing->tcaent = LPDDR3_TCAENT;
	pdram_timing->tcamrd = LPDDR3_TCAMRD;
	pdram_timing->tcackeh = LPDDR3_TCACKEH;
	pdram_timing->tcaext = LPDDR3_TCAEXT;
	pdram_timing->tadr = (LPDDR3_TADR * nmhz + 999) / 1000;
	pdram_timing->tmrz = (LPDDR3_TMRZ * nmhz + 999) / 1000;
	pdram_timing->tcacd = pdram_timing->tadr + 2;
}

#define LPDDR4_TINIT1	(200000) /* 200us */
#define LPDDR4_TINIT2	(10) /* 10ns */
#define LPDDR4_TINIT3	(2000000) /* 2ms */
#define LPDDR4_TINIT4	(5) /* tCK */
#define LPDDR4_TINIT5	(2000) /* 2us */
#define LPDDR4_TRSTL		LPDDR4_TINIT1
#define LPDDR4_TRSTH		LPDDR4_TINIT3
#define LPDDR4_TREFI_3_9_US	(3900) /* 3.9us */

/* base timging */
#define LPDDR4_TRCD	(18) /* tRCD, max(18ns,4tCK) */
#define LPDDR4_TRP_PB	(18) /* tRPpb, max(18ns, 4tCK) */
#define LPDDR4_TRP_AB	(21) /* tRPab, max(21ns, 4tCK) */
#define LPDDR4_TRRD	(10) /* tRRD, max(4tCK,10ns) */
#define LPDDR4_TCCD_BL16	(8) /* tCK */
#define LPDDR4_TCCD_BL32	(16) /* tCK */
#define LPDDR4_TWTR	(10) /* tWTR, max(8tCK, 10ns) */
#define LPDDR4_TRTW	(0) /* tCK register min valid value */
#define LPDDR4_TRAS_MAX (70000) /* 70us */
#define LPDDR4_TRAS	(42) /* tRAS, max(3tCK,42ns) */
#define LPDDR4_TFAW	(40) /* tFAW,min 40ns) */
#define LPDDR4_TRFC_12GBIT	(280) /* tRFC, 280ns(>=12Gb) */
#define LPDDR4_TRFC_6GBIT	(180) /* 6Gb/8Gb 180ns */
#define LPDDR4_TRFC_4GBIT	(130) /* 4Gb 130ns */
#define LPDDR4_TDQSCK_MIN	(1) /* tDQSCKmin,1.5ns */
#define LPDDR4_TDQSCK_MAX	(3) /* tDQSCKmax,3.5ns */
#define LPDDR4_TPPD		(4) /* tCK */

/* pd and sr */
#define LPDDR4_TXP	(7) /* tXP, max(5tCK,7.5ns) */
#define LPDDR4_TCKE	(7) /* tCKE, max(7.5ns,4 tCK) */
#define LPDDR4_TESCKE	(1) /* tESCKE, max(1.75ns, 3tCK) */
#define LPDDR4_TSR	(15) /* tSR, max(15ns, 3tCK) */
#define LPDDR4_TCMDCKE	(1) /* max(1.75ns, 3tCK) */
#define LPDDR4_TCSCKE	(1) /* 1.75ns */
#define LPDDR4_TCKELCS	(5) /* max(5ns, 5tCK) */
#define LPDDR4_TCSCKEH	(1) /* 1.75ns */
#define LPDDR4_TCKEHCS	(7) /* max(7.5ns, 5tCK) */
#define LPDDR4_TMRWCKEL	(14) /* max(14ns, 10tCK) */
#define LPDDR4_TCKELCMD	(7) /* max(7.5ns, 3tCK) */
#define LPDDR4_TCKEHCMD	(7) /* max(7.5ns, 3tCK) */
#define LPDDR4_TCKELPD	(7) /* max(7.5ns, 3tCK) */
#define LPDDR4_TCKCKEL	(7) /* max(7.5ns, 3tCK) */

/* mode register timing */
#define LPDDR4_TMRD	(14) /* tMRD, (=tMRW), max(14ns, 10 tCK) */
#define LPDDR4_TMRR	(8) /* tMRR, 8 tCK */

/* ODT */
#define LPDDR4_TODTON	(3) /* 3.5ns */

/* ZQ */
#define LPDDR4_TZQCAL	(1000) /* 1us */
#define LPDDR4_TZQLAT	(30) /* tZQLAT, max(30ns,8tCK) */
#define LPDDR4_TZQRESET (50) /* ZQreset, max(3tCK,50ns) */
#define LPDDR4_TZQCKE	(1) /* tZQCKE, max(1.75ns, 3tCK) */

/* write leveling */
#define LPDDR4_TWLMRD	(40) /* tCK */
#define LPDDR4_TWLO	(20) /* ns */
#define LPDDR4_TWLDQSEN (20) /* tCK */

/* CA training */
#define LPDDR4_TCAENT	(250) /* ns */
#define LPDDR4_TADR	(20) /* ns */
#define LPDDR4_TMRZ	(1) /* 1.5ns */
#define LPDDR4_TVREF_LONG	(250) /* ns */
#define LPDDR4_TVREF_SHORT	(100) /* ns */

/* VRCG */
#define LPDDR4_TVRCG_ENABLE	(200) /* ns */
#define LPDDR4_TVRCG_DISABLE	(100) /* ns */

/* FSP */
#define LPDDR4_TFC_LONG		(250) /* ns */
#define LPDDR4_TCKFSPE		(7) /* max(7.5ns, 4tCK) */
#define LPDDR4_TCKFSPX		(7) /* max(7.5ns, 4tCK) */

/*
 * Description: depend on input parameter "timing_config",
 *              and calculate all lpddr4
 *              spec timing to "pdram_timing"
 * parameters:
 *   input: timing_config
 *   output: pdram_timing
 */
static void lpddr4_get_parameter(struct timing_related_config *timing_config,
				 struct dram_timing_t *pdram_timing)
{
	uint32_t nmhz = timing_config->freq;
	uint32_t ddr_capability_per_die = get_max_die_capability(timing_config);
	uint32_t tmp, trp_tmp, trppb_tmp, tras_tmp;

	memset((void *)pdram_timing, 0, sizeof(struct dram_timing_t));
	pdram_timing->mhz = nmhz;
	pdram_timing->al = 0;
	pdram_timing->bl = timing_config->bl;

	/*
	 * Only support Write Latency Set A here
	 *      2133 1866 1600 1333 1066 800 533 266
	 *  RL, 36   32   28   24   20   14  10  6
	 *  WL, 18   16   14   12   10   8   6   4
	 * nWR, 40   34   30   24   20   16  10  6
	 * nRTP,16   14   12   10   8    8   8   8
	 */
	tmp = (timing_config->bl == 32) ? 1 : 0;

	/*
	 * we always use WR preamble = 2tCK
	 * RD preamble = Static
	 */
	tmp |= (1 << 2);
	if (nmhz <= 266) {
		pdram_timing->cl = 6;
		pdram_timing->cwl = 4;
		pdram_timing->twr = 6;
		pdram_timing->trtp = 8;
		pdram_timing->mr[2] = LPDDR4_RL6_NRTP8 | LPDDR4_A_WL4;
	} else if (nmhz <= 533) {
		if (timing_config->rdbi) {
			pdram_timing->cl = 12;
			pdram_timing->mr[2] = LPDDR4_RL12_NRTP8 | LPDDR4_A_WL6;
		} else {
			pdram_timing->cl = 10;
			pdram_timing->mr[2] = LPDDR4_RL10_NRTP8 | LPDDR4_A_WL6;
		}
		pdram_timing->cwl = 6;
		pdram_timing->twr = 10;
		pdram_timing->trtp = 8;
		tmp |= (1 << 4);
	} else if (nmhz <= 800) {
		if (timing_config->rdbi) {
			pdram_timing->cl = 16;
			pdram_timing->mr[2] = LPDDR4_RL16_NRTP8 | LPDDR4_A_WL8;
		} else {
			pdram_timing->cl = 14;
			pdram_timing->mr[2] = LPDDR4_RL14_NRTP8 | LPDDR4_A_WL8;
		}
		pdram_timing->cwl = 8;
		pdram_timing->twr = 16;
		pdram_timing->trtp = 8;
		tmp |= (2 << 4);
	} else if (nmhz <= 1066) {
		if (timing_config->rdbi) {
			pdram_timing->cl = 22;
			pdram_timing->mr[2] = LPDDR4_RL22_NRTP8 | LPDDR4_A_WL10;
		} else {
			pdram_timing->cl = 20;
			pdram_timing->mr[2] = LPDDR4_RL20_NRTP8 | LPDDR4_A_WL10;
		}
		pdram_timing->cwl = 10;
		pdram_timing->twr = 20;
		pdram_timing->trtp = 8;
		tmp |= (3 << 4);
	} else if (nmhz <= 1333) {
		if (timing_config->rdbi) {
			pdram_timing->cl = 28;
			pdram_timing->mr[2] = LPDDR4_RL28_NRTP10 |
						LPDDR4_A_WL12;
		} else {
			pdram_timing->cl = 24;
			pdram_timing->mr[2] = LPDDR4_RL24_NRTP10 |
						LPDDR4_A_WL12;
		}
		pdram_timing->cwl = 12;
		pdram_timing->twr = 24;
		pdram_timing->trtp = 10;
		tmp |= (4 << 4);
	} else if (nmhz <= 1600) {
		if (timing_config->rdbi) {
			pdram_timing->cl = 32;
			pdram_timing->mr[2] = LPDDR4_RL32_NRTP12 |
						LPDDR4_A_WL14;
		} else {
			pdram_timing->cl = 28;
			pdram_timing->mr[2] = LPDDR4_RL28_NRTP12 |
						LPDDR4_A_WL14;
		}
		pdram_timing->cwl = 14;
		pdram_timing->twr = 30;
		pdram_timing->trtp = 12;
		tmp |= (5 << 4);
	} else if (nmhz <= 1866) {
		if (timing_config->rdbi) {
			pdram_timing->cl = 36;
			pdram_timing->mr[2] = LPDDR4_RL36_NRTP14 |
						LPDDR4_A_WL16;
		} else {
			pdram_timing->cl = 32;
			pdram_timing->mr[2] = LPDDR4_RL32_NRTP14 |
						LPDDR4_A_WL16;
		}
		pdram_timing->cwl = 16;
		pdram_timing->twr = 34;
		pdram_timing->trtp = 14;
		tmp |= (6 << 4);
	} else {
		if (timing_config->rdbi) {
			pdram_timing->cl = 40;
			pdram_timing->mr[2] = LPDDR4_RL40_NRTP16 |
						LPDDR4_A_WL18;
		} else {
			pdram_timing->cl = 36;
			pdram_timing->mr[2] = LPDDR4_RL36_NRTP16 |
						LPDDR4_A_WL18;
		}
		pdram_timing->cwl = 18;
		pdram_timing->twr = 40;
		pdram_timing->trtp = 16;
		tmp |= (7 << 4);
	}
	pdram_timing->mr[1] = tmp;
	tmp = (timing_config->rdbi ? LPDDR4_DBI_RD_EN : 0) |
	      (timing_config->wdbi ? LPDDR4_DBI_WR_EN : 0);
	switch (timing_config->dramds) {
	case 240:
		pdram_timing->mr[3] = LPDDR4_PDDS_240 | tmp;
		break;
	case 120:
		pdram_timing->mr[3] = LPDDR4_PDDS_120 | tmp;
		break;
	case 80:
		pdram_timing->mr[3] = LPDDR4_PDDS_80 | tmp;
		break;
	case 60:
		pdram_timing->mr[3] = LPDDR4_PDDS_60 | tmp;
		break;
	case 48:
		pdram_timing->mr[3] = LPDDR4_PDDS_48 | tmp;
		break;
	case 40:
	default:
		pdram_timing->mr[3] = LPDDR4_PDDS_40 | tmp;
		break;
	}
	pdram_timing->mr[0] = 0;
	switch (timing_config->dramodt) {
	case 240:
		tmp = LPDDR4_DQODT_240;
		break;
	case 120:
		tmp = LPDDR4_DQODT_120;
		break;
	case 80:
		tmp = LPDDR4_DQODT_80;
		break;
	case 60:
		tmp = LPDDR4_DQODT_60;
		break;
	case 48:
		tmp = LPDDR4_DQODT_48;
		break;
	case 40:
	default:
		tmp = LPDDR4_DQODT_40;
		break;
	}
	switch (timing_config->caodt) {
	case 240:
		pdram_timing->mr11 = LPDDR4_CAODT_240 | tmp;
		break;
	case 120:
		pdram_timing->mr11 = LPDDR4_CAODT_120 | tmp;
		break;
	case 80:
		pdram_timing->mr11 = LPDDR4_CAODT_80 | tmp;
		break;
	case 60:
		pdram_timing->mr11 = LPDDR4_CAODT_60 | tmp;
		break;
	case 48:
		pdram_timing->mr11 = LPDDR4_CAODT_48 | tmp;
		break;
	case 40:
	default:
		pdram_timing->mr11 = LPDDR4_CAODT_40 | tmp;
		break;
	}

	pdram_timing->tinit1 = (LPDDR4_TINIT1 * nmhz + 999) / 1000;
	pdram_timing->tinit2 = (LPDDR4_TINIT2 * nmhz + 999) / 1000;
	pdram_timing->tinit3 = (LPDDR4_TINIT3 * nmhz + 999) / 1000;
	pdram_timing->tinit4 = (LPDDR4_TINIT4 * nmhz + 999) / 1000;
	pdram_timing->tinit5 = (LPDDR4_TINIT5 * nmhz + 999) / 1000;
	pdram_timing->trstl = (LPDDR4_TRSTL * nmhz + 999) / 1000;
	pdram_timing->trsth = (LPDDR4_TRSTH * nmhz + 999) / 1000;
	/* tREFI, average periodic refresh interval, 3.9us(4Gb-16Gb) */
	pdram_timing->trefi = (LPDDR4_TREFI_3_9_US * nmhz + 999) / 1000;
	/* base timing */
	tmp = ((LPDDR4_TRCD * nmhz + 999) / 1000);
	pdram_timing->trcd = max(4, tmp);
	trppb_tmp = ((LPDDR4_TRP_PB * nmhz + 999) / 1000);
	trppb_tmp = max(4, trppb_tmp);
	pdram_timing->trppb = trppb_tmp;
	trp_tmp = ((LPDDR4_TRP_AB * nmhz + 999) / 1000);
	trp_tmp = max(4, trp_tmp);
	pdram_timing->trp = trp_tmp;
	tras_tmp = ((LPDDR4_TRAS * nmhz + 999) / 1000);
	tras_tmp = max(3, tras_tmp);
	pdram_timing->tras_min = tras_tmp;
	pdram_timing->trc = (tras_tmp + trp_tmp);
	tmp = ((LPDDR4_TRRD * nmhz + 999) / 1000);
	pdram_timing->trrd = max(4, tmp);
	if (timing_config->bl == 32)
		pdram_timing->tccd = LPDDR4_TCCD_BL16;
	else
		pdram_timing->tccd = LPDDR4_TCCD_BL32;
	pdram_timing->tccdmw = 4 * pdram_timing->tccd;
	tmp = ((LPDDR4_TWTR * nmhz + 999) / 1000);
	pdram_timing->twtr = max(8, tmp);
	pdram_timing->trtw =  ((LPDDR4_TRTW * nmhz + 999) / 1000);
	pdram_timing->tras_max = ((LPDDR4_TRAS_MAX * nmhz + 999) / 1000);
	pdram_timing->tfaw = (LPDDR4_TFAW * nmhz + 999) / 1000;
	if (ddr_capability_per_die > 0x60000000) {
		/* >= 12Gb */
		pdram_timing->trfc =
			(LPDDR4_TRFC_12GBIT * nmhz + 999) / 1000;
		tmp = (((LPDDR4_TRFC_12GBIT + 7) * nmhz + (nmhz >> 1) +
				999) / 1000);
	} else if (ddr_capability_per_die > 0x30000000) {
		pdram_timing->trfc =
			(LPDDR4_TRFC_6GBIT * nmhz + 999) / 1000;
		tmp = (((LPDDR4_TRFC_6GBIT + 7) * nmhz + (nmhz >> 1) +
				999) / 1000);
	} else {
		pdram_timing->trfc =
			(LPDDR4_TRFC_4GBIT * nmhz + 999) / 1000;
		tmp = (((LPDDR4_TRFC_4GBIT + 7) * nmhz + (nmhz >> 1) +
				999) / 1000);
	}
	pdram_timing->txsr = max(2, tmp);
	pdram_timing->txsnr = max(2, tmp);
	/* tdqsck use rounded down */
	pdram_timing->tdqsck =  ((LPDDR4_TDQSCK_MIN * nmhz +
				(nmhz >> 1)) / 1000);
	pdram_timing->tdqsck_max =  ((LPDDR4_TDQSCK_MAX * nmhz +
				(nmhz >> 1) + 999) / 1000);
	pdram_timing->tppd = LPDDR4_TPPD;
	/* pd and sr */
	tmp = ((LPDDR4_TXP * nmhz + (nmhz >> 1) + 999) / 1000);
	pdram_timing->txp = max(5, tmp);
	tmp = ((LPDDR4_TCKE * nmhz + (nmhz >> 1) + 999) / 1000);
	pdram_timing->tcke = max(4, tmp);
	tmp = ((LPDDR4_TESCKE * nmhz +
		((nmhz * 3) / 4) +
		999) / 1000);
	pdram_timing->tescke = max(3, tmp);
	tmp = ((LPDDR4_TSR * nmhz + 999) / 1000);
	pdram_timing->tsr = max(3, tmp);
	tmp = ((LPDDR4_TCMDCKE * nmhz +
		((nmhz * 3) / 4) +
		999) / 1000);
	pdram_timing->tcmdcke = max(3, tmp);
	pdram_timing->tcscke = ((LPDDR4_TCSCKE * nmhz +
		((nmhz * 3) / 4) +
		999) / 1000);
	tmp = ((LPDDR4_TCKELCS * nmhz + 999) / 1000);
	pdram_timing->tckelcs = max(5, tmp);
	pdram_timing->tcsckeh = ((LPDDR4_TCSCKEH * nmhz +
		((nmhz * 3) / 4) +
		999) / 1000);
	tmp = ((LPDDR4_TCKEHCS * nmhz +
		(nmhz >> 1) + 999) / 1000);
	pdram_timing->tckehcs = max(5, tmp);
	tmp = ((LPDDR4_TMRWCKEL * nmhz + 999) / 1000);
	pdram_timing->tmrwckel = max(10, tmp);
	tmp = ((LPDDR4_TCKELCMD * nmhz + (nmhz >> 1) +
		999) / 1000);
	pdram_timing->tckelcmd = max(3, tmp);
	tmp = ((LPDDR4_TCKEHCMD * nmhz + (nmhz >> 1) +
		999) / 1000);
	pdram_timing->tckehcmd = max(3, tmp);
	tmp = ((LPDDR4_TCKELPD * nmhz + (nmhz >> 1) +
		999) / 1000);
	pdram_timing->tckelpd = max(3, tmp);
	tmp = ((LPDDR4_TCKCKEL * nmhz + (nmhz >> 1) +
		999) / 1000);
	pdram_timing->tckckel = max(3, tmp);
	/* mode register timing */
	tmp = ((LPDDR4_TMRD * nmhz + 999) / 1000);
	pdram_timing->tmrd = max(10, tmp);
	pdram_timing->tmrr = LPDDR4_TMRR;
	pdram_timing->tmrri = pdram_timing->trcd + 3;
	/* ODT */
	pdram_timing->todton = (LPDDR4_TODTON * nmhz + (nmhz >> 1) + 999)
				/ 1000;
	/* ZQ */
	pdram_timing->tzqcal = (LPDDR4_TZQCAL * nmhz + 999) / 1000;
	tmp = ((LPDDR4_TZQLAT * nmhz + 999) / 1000);
	pdram_timing->tzqlat = max(8, tmp);
	tmp = ((LPDDR4_TZQRESET * nmhz + 999) / 1000);
	pdram_timing->tzqreset = max(3, tmp);
	tmp = ((LPDDR4_TZQCKE * nmhz +
		((nmhz * 3) / 4) +
		999) / 1000);
	pdram_timing->tzqcke = max(3, tmp);
	/* write leveling */
	pdram_timing->twlmrd = LPDDR4_TWLMRD;
	pdram_timing->twlo = (LPDDR4_TWLO * nmhz + 999) / 1000;
	pdram_timing->twldqsen = LPDDR4_TWLDQSEN;
	/* CA training */
	pdram_timing->tcaent = (LPDDR4_TCAENT * nmhz + 999) / 1000;
	pdram_timing->tadr = (LPDDR4_TADR * nmhz + 999) / 1000;
	pdram_timing->tmrz = (LPDDR4_TMRZ * nmhz + (nmhz >> 1) + 999) / 1000;
	pdram_timing->tvref_long = (LPDDR4_TVREF_LONG * nmhz + 999) / 1000;
	pdram_timing->tvref_short = (LPDDR4_TVREF_SHORT * nmhz + 999) / 1000;
	/* VRCG */
	pdram_timing->tvrcg_enable = (LPDDR4_TVRCG_ENABLE * nmhz +
					999) / 1000;
	pdram_timing->tvrcg_disable = (LPDDR4_TVRCG_DISABLE * nmhz +
					999) / 1000;
	/* FSP */
	pdram_timing->tfc_long = (LPDDR4_TFC_LONG * nmhz + 999) / 1000;
	tmp = (LPDDR4_TCKFSPE * nmhz + (nmhz >> 1) + 999) / 1000;
	pdram_timing->tckfspe = max(4, tmp);
	tmp = (LPDDR4_TCKFSPX * nmhz + (nmhz >> 1) + 999) / 1000;
	pdram_timing->tckfspx = max(4, tmp);
}

/*
 * Description: depend on input parameter "timing_config",
 *              and calculate correspond "dram_type"
 *              spec timing to "pdram_timing"
 * parameters:
 *   input: timing_config
 *   output: pdram_timing
 * NOTE: MR ODT is set, need to disable by controller
 */
void dram_get_parameter(struct timing_related_config *timing_config,
			struct dram_timing_t *pdram_timing)
{
	switch (timing_config->dram_type) {
	case DDR3:
		ddr3_get_parameter(timing_config, pdram_timing);
		break;
	case LPDDR2:
		lpddr2_get_parameter(timing_config, pdram_timing);
		break;
	case LPDDR3:
		lpddr3_get_parameter(timing_config, pdram_timing);
		break;
	case LPDDR4:
		lpddr4_get_parameter(timing_config, pdram_timing);
		break;
	}
}
