arch/arm/mach-omap2/omap5/sdram.c - u-boot-mtk - Git at Google

 // SPDX-License-Identifier: GPL-2.0+
 /*
  * Timing and Organization details of the ddr device parts used in OMAP5
  * EVM
  *
  * (C) Copyright 2010
  * Texas Instruments, <www.ti.com>
  *
  * Aneesh V <aneesh@ti.com>
  * Sricharan R <r.sricharan@ti.com>
  */

 #include <asm/emif.h>
 #include <asm/arch/sys_proto.h>

 /*
  * This file provides details of the LPDDR2 SDRAM parts used on OMAP5
  * EVM. Since the parts used and geometry are identical for
  * evm for a given OMAP5 revision, this information is kept
  * here instead of being in board directory. However the key functions
  * exported are weakly linked so that they can be over-ridden in the board
  * directory if there is a OMAP5 board in the future that uses a different
  * memory device or geometry.
  *
  * For any new board with different memory devices over-ride one or more
  * of the following functions as per the CONFIG flags you intend to enable:
  * - emif_get_reg_dump()
  * - emif_get_dmm_regs()
  * - emif_get_device_details()
  * - emif_get_device_timings()
  */

 #ifdef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS
 const struct emif_regs emif_regs_532_mhz_2cs = {
 	.sdram_config_init		= 0x80800EBA,
 	.sdram_config			= 0x808022BA,
 	.ref_ctrl			= 0x0000081A,
 	.sdram_tim1			= 0x772F6873,
 	.sdram_tim2			= 0x304a129a,
 	.sdram_tim3			= 0x02f7e45f,
 	.read_idle_ctrl			= 0x00050000,
 	.zq_config			= 0x000b3215,
 	.temp_alert_config		= 0x08000a05,
 	.emif_ddr_phy_ctlr_1_init	= 0x0E28420d,
 	.emif_ddr_phy_ctlr_1		= 0x0E28420d,
 	.emif_ddr_ext_phy_ctrl_1	= 0x04020080,
 	.emif_ddr_ext_phy_ctrl_2	= 0x28C518A3,
 	.emif_ddr_ext_phy_ctrl_3	= 0x518A3146,
 	.emif_ddr_ext_phy_ctrl_4	= 0x0014628C,
 	.emif_ddr_ext_phy_ctrl_5	= 0x04010040
 };

 const struct emif_regs emif_regs_532_mhz_2cs_es2 = {
 	.sdram_config_init		= 0x80800EBA,
 	.sdram_config			= 0x808022BA,
 	.ref_ctrl			= 0x0000081A,
 	.sdram_tim1			= 0x772F6873,
 	.sdram_tim2			= 0x304a129a,
 	.sdram_tim3			= 0x02f7e45f,
 	.read_idle_ctrl			= 0x00050000,
 	.zq_config			= 0x100b3215,
 	.temp_alert_config		= 0x08000a05,
 	.emif_ddr_phy_ctlr_1_init	= 0x0E30400d,
 	.emif_ddr_phy_ctlr_1		= 0x0E30400d,
 	.emif_ddr_ext_phy_ctrl_1	= 0x04020080,
 	.emif_ddr_ext_phy_ctrl_2	= 0x28C518A3,
 	.emif_ddr_ext_phy_ctrl_3	= 0x518A3146,
 	.emif_ddr_ext_phy_ctrl_4	= 0x0014628C,
 	.emif_ddr_ext_phy_ctrl_5	= 0xC330CC33,
 };

 const struct emif_regs emif_regs_266_mhz_2cs = {
 	.sdram_config_init		= 0x80800EBA,
 	.sdram_config			= 0x808022BA,
 	.ref_ctrl			= 0x0000040D,
 	.sdram_tim1			= 0x2A86B419,
 	.sdram_tim2			= 0x1025094A,
 	.sdram_tim3			= 0x026BA22F,
 	.read_idle_ctrl			= 0x00050000,
 	.zq_config			= 0x000b3215,
 	.temp_alert_config		= 0x08000a05,
 	.emif_ddr_phy_ctlr_1_init	= 0x0E28420d,
 	.emif_ddr_phy_ctlr_1		= 0x0E28420d,
 	.emif_ddr_ext_phy_ctrl_1	= 0x04020080,
 	.emif_ddr_ext_phy_ctrl_2	= 0x0A414829,
 	.emif_ddr_ext_phy_ctrl_3	= 0x14829052,
 	.emif_ddr_ext_phy_ctrl_4	= 0x000520A4,
 	.emif_ddr_ext_phy_ctrl_5	= 0x04010040
 };

 const struct emif_regs emif_regs_ddr3_532_mhz_1cs = {
 	.sdram_config_init		= 0x61851B32,
 	.sdram_config			= 0x61851B32,
 	.sdram_config2			= 0x0,
 	.ref_ctrl			= 0x00001035,
 	.sdram_tim1			= 0xCCCF36B3,
 	.sdram_tim2			= 0x308F7FDA,
 	.sdram_tim3			= 0x027F88A8,
 	.read_idle_ctrl			= 0x00050000,
 	.zq_config			= 0x0007190B,
 	.temp_alert_config		= 0x00000000,
 	.emif_ddr_phy_ctlr_1_init	= 0x0020420A,
 	.emif_ddr_phy_ctlr_1		= 0x0024420A,
 	.emif_ddr_ext_phy_ctrl_1	= 0x04040100,
 	.emif_ddr_ext_phy_ctrl_2	= 0x00000000,
 	.emif_ddr_ext_phy_ctrl_3	= 0x00000000,
 	.emif_ddr_ext_phy_ctrl_4	= 0x00000000,
 	.emif_ddr_ext_phy_ctrl_5	= 0x04010040,
 	.emif_rd_wr_lvl_rmp_win		= 0x00000000,
 	.emif_rd_wr_lvl_rmp_ctl		= 0x80000000,
 	.emif_rd_wr_lvl_ctl		= 0x00000000,
 	.emif_rd_wr_exec_thresh		= 0x00000305
 };

 const struct emif_regs emif_regs_ddr3_532_mhz_1cs_es2 = {
 	.sdram_config_init              = 0x61851B32,
 	.sdram_config                   = 0x61851B32,
 	.sdram_config2			= 0x0,
 	.ref_ctrl                       = 0x00001035,
 	.sdram_tim1                     = 0xCCCF36B3,
 	.sdram_tim2                     = 0x308F7FDA,
 	.sdram_tim3                     = 0x027F88A8,
 	.read_idle_ctrl                 = 0x00050000,
 	.zq_config                      = 0x1007190B,
 	.temp_alert_config              = 0x00000000,
 	.emif_ddr_phy_ctlr_1_init       = 0x0030400A,
 	.emif_ddr_phy_ctlr_1            = 0x0034400A,
 	.emif_ddr_ext_phy_ctrl_1        = 0x04040100,
 	.emif_ddr_ext_phy_ctrl_2        = 0x00000000,
 	.emif_ddr_ext_phy_ctrl_3        = 0x00000000,
 	.emif_ddr_ext_phy_ctrl_4        = 0x00000000,
 	.emif_ddr_ext_phy_ctrl_5        = 0x4350D435,
 	.emif_rd_wr_lvl_rmp_win         = 0x00000000,
 	.emif_rd_wr_lvl_rmp_ctl         = 0x80000000,
 	.emif_rd_wr_lvl_ctl             = 0x00000000,
 	.emif_rd_wr_exec_thresh         = 0x40000305
 };

 const struct dmm_lisa_map_regs lisa_map_4G_x_2_x_2 = {
 	.dmm_lisa_map_0 = 0x0,
 	.dmm_lisa_map_1 = 0x0,
 	.dmm_lisa_map_2 = 0x80740300,
 	.dmm_lisa_map_3 = 0xFF020100,
 	.is_ma_present	= 0x1
 };

 static void emif_get_reg_dump_sdp(u32 emif_nr, const struct emif_regs **regs)
 {
 	switch (omap_revision()) {
 	case OMAP5430_ES1_0:
 		*regs = &emif_regs_532_mhz_2cs;
 		break;
 	case OMAP5432_ES1_0:
 		*regs = &emif_regs_ddr3_532_mhz_1cs;
 		break;
 	case OMAP5430_ES2_0:
 		*regs = &emif_regs_532_mhz_2cs_es2;
 		break;
 	case OMAP5432_ES2_0:
 	default:
 		*regs = &emif_regs_ddr3_532_mhz_1cs_es2;
 		break;
 	}
 }

 void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs)
 	__attribute__((weak, alias("emif_get_reg_dump_sdp")));

 static void emif_get_dmm_regs_sdp(const struct dmm_lisa_map_regs
 						**dmm_lisa_regs)
 {
 	switch (omap_revision()) {
 	case OMAP5430_ES1_0:
 	case OMAP5430_ES2_0:
 	case OMAP5432_ES1_0:
 	case OMAP5432_ES2_0:
 	default:
 		*dmm_lisa_regs = &lisa_map_4G_x_2_x_2;
 		break;
 	}

 }

 void emif_get_dmm_regs(const struct dmm_lisa_map_regs **dmm_lisa_regs)
 	__attribute__((weak, alias("emif_get_dmm_regs_sdp")));
 #else

 static const struct lpddr2_device_details dev_4G_S4_details = {
 	.type		= LPDDR2_TYPE_S4,
 	.density	= LPDDR2_DENSITY_4Gb,
 	.io_width	= LPDDR2_IO_WIDTH_32,
 	.manufacturer	= LPDDR2_MANUFACTURER_SAMSUNG
 };

 static void emif_get_device_details_sdp(u32 emif_nr,
 		struct lpddr2_device_details *cs0_device_details,
 		struct lpddr2_device_details *cs1_device_details)
 {
 	/* EMIF1 & EMIF2 have identical configuration */
 	*cs0_device_details = dev_4G_S4_details;
 	*cs1_device_details = dev_4G_S4_details;
 }

 void emif_get_device_details(u32 emif_nr,
 		struct lpddr2_device_details *cs0_device_details,
 		struct lpddr2_device_details *cs1_device_details)
 	__attribute__((weak, alias("emif_get_device_details_sdp")));

 #endif /* CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS */

 const u32 ext_phy_ctrl_const_base[] = {
 	0x01004010,
 	0x00001004,
 	0x04010040,
 	0x01004010,
 	0x00001004,
 	0x00000000,
 	0x00000000,
 	0x00000000,
 	0x80080080,
 	0x00800800,
 	0x08102040,
 	0x00000001,
 	0x540A8150,
 	0xA81502a0,
 	0x002A0540,
 	0x00000000,
 	0x00000000,
 	0x00000000,
 	0x00000077,
 	0x0
 };

 const u32 ddr3_ext_phy_ctrl_const_base_es1[] = {
 	0x01004010,
 	0x00001004,
 	0x04010040,
 	0x01004010,
 	0x00001004,
 	0x00000000,
 	0x00000000,
 	0x00000000,
 	0x80080080,
 	0x00800800,
 	0x08102040,
 	0x00000002,
 	0x0,
 	0x0,
 	0x0,
 	0x00000000,
 	0x00000000,
 	0x00000000,
 	0x00000057,
 	0x0
 };

 const u32 ddr3_ext_phy_ctrl_const_base_es2[] = {
 	0x50D4350D,
 	0x00000D43,
 	0x04010040,
 	0x01004010,
 	0x00001004,
 	0x00000000,
 	0x00000000,
 	0x00000000,
 	0x80080080,
 	0x00800800,
 	0x08102040,
 	0x00000002,
 	0x00000000,
 	0x00000000,
 	0x00000000,
 	0x00000000,
 	0x00000000,
 	0x00000000,
 	0x00000057,
 	0x0
 };

 /* Ext phy ctrl 1-35 regs */
 const u32
 dra_ddr3_ext_phy_ctrl_const_base_es1_emif1[] = {
 	0x10040100,
 	0x00910091,
 	0x00950095,
 	0x009B009B,
 	0x009E009E,
 	0x00980098,
 	0x00340034,
 	0x00350035,
 	0x00340034,
 	0x00310031,
 	0x00340034,
 	0x007F007F,
 	0x007F007F,
 	0x007F007F,
 	0x007F007F,
 	0x007F007F,
 	0x00480048,
 	0x004A004A,
 	0x00520052,
 	0x00550055,
 	0x00500050,
 	0x00000000,
 	0x00600020,
 	0x40011080,
 	0x08102040,
 	0x0,
 	0x0,
 	0x0,
 	0x0,
 	0x0,
 	0x0,
 	0x0,
 	0x0,
 	0x0,
 	0x0
 };

 /* Ext phy ctrl 1-35 regs */
 const u32
 dra_ddr3_ext_phy_ctrl_const_base_es1_emif2[] = {
 	0x10040100,
 	0x00910091,
 	0x00950095,
 	0x009B009B,
 	0x009E009E,
 	0x00980098,
 	0x00330033,
 	0x00330033,
 	0x002F002F,
 	0x00320032,
 	0x00310031,
 	0x007F007F,
 	0x007F007F,
 	0x007F007F,
 	0x007F007F,
 	0x007F007F,
 	0x00520052,
 	0x00520052,
 	0x00470047,
 	0x00490049,
 	0x00500050,
 	0x00000000,
 	0x00600020,
 	0x40011080,
 	0x08102040,
 	0x0,
 	0x0,
 	0x0,
 	0x0,
 	0x0,
 	0x0,
 	0x0,
 	0x0,
 	0x0,
 	0x0
 };

 /* Ext phy ctrl 1-35 regs */
 const u32
 dra_ddr3_ext_phy_ctrl_const_base_666MHz[] = {
 	0x10040100,
 	0x00A400A4,
 	0x00A900A9,
 	0x00B000B0,
 	0x00B000B0,
 	0x00A400A4,
 	0x00390039,
 	0x00320032,
 	0x00320032,
 	0x00320032,
 	0x00440044,
 	0x00550055,
 	0x00550055,
 	0x00550055,
 	0x00550055,
 	0x007F007F,
 	0x004D004D,
 	0x00430043,
 	0x00560056,
 	0x00540054,
 	0x00600060,
 	0x0,
 	0x00600020,
 	0x40010080,
 	0x08102040,
 	0x0,
 	0x0,
 	0x0,
 	0x0,
 	0x0,
 	0x0,
 	0x0,
 	0x0,
 	0x0,
 	0x0
 };

 const u32 dra_ddr3_ext_phy_ctrl_const_base_666MHz_es2[] = {
 	0x04040100,
 	0x006B009F,
 	0x006B00A2,
 	0x006B00A8,
 	0x006B00A8,
 	0x006B00B2,
 	0x002F002F,
 	0x002F002F,
 	0x002F002F,
 	0x002F002F,
 	0x002F002F,
 	0x00600073,
 	0x00600071,
 	0x0060007C,
 	0x0060007E,
 	0x00600084,
 	0x00400053,
 	0x00400051,
 	0x0040005C,
 	0x0040005E,
 	0x00400064,
 	0x00800080,
 	0x00800080,
 	0x40010080,
 	0x08102040,
 	0x005B008F,
 	0x005B0092,
 	0x005B0098,
 	0x005B0098,
 	0x005B00A2,
 	0x00300043,
 	0x00300041,
 	0x0030004C,
 	0x0030004E,
 	0x00300054,
 	0x00000077
 };

 const struct lpddr2_mr_regs mr_regs = {
 	.mr1	= MR1_BL_8_BT_SEQ_WRAP_EN_NWR_8,
 	.mr2	= 0x6,
 	.mr3	= 0x1,
 	.mr10	= MR10_ZQ_ZQINIT,
 	.mr16	= MR16_REF_FULL_ARRAY
 };

 void __weak emif_get_ext_phy_ctrl_const_regs(u32 emif_nr,
 					     const u32 **regs,
 					     u32 *size)
 {
 	switch (omap_revision()) {
 	case OMAP5430_ES1_0:
 	case OMAP5430_ES2_0:
 		*regs = ext_phy_ctrl_const_base;
 		*size = ARRAY_SIZE(ext_phy_ctrl_const_base);
 		break;
 	case OMAP5432_ES1_0:
 		*regs = ddr3_ext_phy_ctrl_const_base_es1;
 		*size = ARRAY_SIZE(ddr3_ext_phy_ctrl_const_base_es1);
 		break;
 	case OMAP5432_ES2_0:
 		*regs = ddr3_ext_phy_ctrl_const_base_es2;
 		*size = ARRAY_SIZE(ddr3_ext_phy_ctrl_const_base_es2);
 		break;
 	case DRA752_ES1_0:
 	case DRA752_ES1_1:
 	case DRA752_ES2_0:
 		if (emif_nr == 1) {
 			*regs = dra_ddr3_ext_phy_ctrl_const_base_es1_emif1;
 			*size =
 			ARRAY_SIZE(dra_ddr3_ext_phy_ctrl_const_base_es1_emif1);
 		} else {
 			*regs = dra_ddr3_ext_phy_ctrl_const_base_es1_emif2;
 			*size =
 			ARRAY_SIZE(dra_ddr3_ext_phy_ctrl_const_base_es1_emif2);
 		}
 		break;
 	case DRA722_ES1_0:
 		*regs = dra_ddr3_ext_phy_ctrl_const_base_666MHz;
 		*size = ARRAY_SIZE(dra_ddr3_ext_phy_ctrl_const_base_666MHz);
 		break;
 	case DRA762_ES1_0:
 	case DRA762_ABZ_ES1_0:
 	case DRA762_ACD_ES1_0:
 	case DRA722_ES2_0:
 	case DRA722_ES2_1:
 		*regs = dra_ddr3_ext_phy_ctrl_const_base_666MHz_es2;
 		*size = ARRAY_SIZE(dra_ddr3_ext_phy_ctrl_const_base_666MHz_es2);
 		break;
 	default:
 		*regs = ddr3_ext_phy_ctrl_const_base_es2;
 		*size = ARRAY_SIZE(ddr3_ext_phy_ctrl_const_base_es2);

 	}
 }

 void get_lpddr2_mr_regs(const struct lpddr2_mr_regs **regs)
 {
 	*regs = &mr_regs;
 }

 static void do_ext_phy_settings_omap5(u32 base, const struct emif_regs *regs)
 {
 	u32 *ext_phy_ctrl_base = 0;
 	u32 *emif_ext_phy_ctrl_base = 0;
 	u32 emif_nr;
 	const u32 *ext_phy_ctrl_const_regs;
 	u32 i = 0;
 	u32 size;

 	emif_nr = (base == EMIF1_BASE) ? 1 : 2;

 	struct emif_reg_struct *emif = (struct emif_reg_struct *)base;

 	ext_phy_ctrl_base = (u32 *) &(regs->emif_ddr_ext_phy_ctrl_1);
 	emif_ext_phy_ctrl_base = (u32 *) &(emif->emif_ddr_ext_phy_ctrl_1);

 	/* Configure external phy control timing registers */
 	for (i = 0; i < EMIF_EXT_PHY_CTRL_TIMING_REG; i++) {
 		writel(*ext_phy_ctrl_base, emif_ext_phy_ctrl_base++);
 		/* Update shadow registers */
 		writel(*ext_phy_ctrl_base++, emif_ext_phy_ctrl_base++);
 	}

 	/*
 	 * external phy 6-24 registers do not change with
 	 * ddr frequency
 	 */
 	emif_get_ext_phy_ctrl_const_regs(emif_nr,
 					 &ext_phy_ctrl_const_regs, &size);

 	for (i = 0; i < size; i++) {
 		writel(ext_phy_ctrl_const_regs[i],
 		       emif_ext_phy_ctrl_base++);
 		/* Update shadow registers */
 		writel(ext_phy_ctrl_const_regs[i],
 		       emif_ext_phy_ctrl_base++);
 	}
 }

 static void do_ext_phy_settings_dra7(u32 base, const struct emif_regs *regs)
 {
 	struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
 	u32 *emif_ext_phy_ctrl_base = 0;
 	u32 emif_nr;
 	const u32 *ext_phy_ctrl_const_regs;
 	u32 i, hw_leveling, size, phy;

 	emif_nr = (base == EMIF1_BASE) ? 1 : 2;

 	hw_leveling = regs->emif_rd_wr_lvl_rmp_ctl >> EMIF_REG_RDWRLVL_EN_SHIFT;
 	phy = regs->emif_ddr_phy_ctlr_1_init;

 	emif_ext_phy_ctrl_base = (u32 *)&(emif->emif_ddr_ext_phy_ctrl_1);

 	emif_get_ext_phy_ctrl_const_regs(emif_nr,
 					 &ext_phy_ctrl_const_regs, &size);

 	writel(ext_phy_ctrl_const_regs[0], &emif_ext_phy_ctrl_base[0]);
 	writel(ext_phy_ctrl_const_regs[0], &emif_ext_phy_ctrl_base[1]);

 	/*
 	 * Copy the predefined PHY register values
 	 * if leveling is disabled.
 	 */
 	if (phy & EMIF_DDR_PHY_CTRL_1_RDLVLGATE_MASK_MASK)
 		for (i = 1; i < 6; i++) {
 			writel(ext_phy_ctrl_const_regs[i],
 			       &emif_ext_phy_ctrl_base[i * 2]);
 			writel(ext_phy_ctrl_const_regs[i],
 			       &emif_ext_phy_ctrl_base[i * 2 + 1]);
 		}

 	if (phy & EMIF_DDR_PHY_CTRL_1_RDLVL_MASK_MASK)
 		for (i = 6; i < 11; i++) {
 			writel(ext_phy_ctrl_const_regs[i],
 			       &emif_ext_phy_ctrl_base[i * 2]);
 			writel(ext_phy_ctrl_const_regs[i],
 			       &emif_ext_phy_ctrl_base[i * 2 + 1]);
 		}

 	if (phy & EMIF_DDR_PHY_CTRL_1_WRLVL_MASK_MASK)
 		for (i = 11; i < 25; i++) {
 			writel(ext_phy_ctrl_const_regs[i],
 			       &emif_ext_phy_ctrl_base[i * 2]);
 			writel(ext_phy_ctrl_const_regs[i],
 			       &emif_ext_phy_ctrl_base[i * 2 + 1]);
 		}

 	if (hw_leveling) {
 		/*
 		 * Write the init value for HW levling to occur
 		 */
 		for (i = 21; i < 35; i++) {
 			writel(ext_phy_ctrl_const_regs[i],
 			       &emif_ext_phy_ctrl_base[i * 2]);
 			writel(ext_phy_ctrl_const_regs[i],
 			       &emif_ext_phy_ctrl_base[i * 2 + 1]);
 		}
 	}
 }

 void do_ext_phy_settings(u32 base, const struct emif_regs *regs)
 {
 	if (is_omap54xx())
 		do_ext_phy_settings_omap5(base, regs);
 	else
 		do_ext_phy_settings_dra7(base, regs);
 }

 #ifndef CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS
 static const struct lpddr2_ac_timings timings_jedec_532_mhz = {
 	.max_freq	= 532000000,
 	.RL		= 8,
 	.tRPab		= 21,
 	.tRCD		= 18,
 	.tWR		= 15,
 	.tRASmin	= 42,
 	.tRRD		= 10,
 	.tWTRx2		= 15,
 	.tXSR		= 140,
 	.tXPx2		= 15,
 	.tRFCab		= 130,
 	.tRTPx2		= 15,
 	.tCKE		= 3,
 	.tCKESR		= 15,
 	.tZQCS		= 90,
 	.tZQCL		= 360,
 	.tZQINIT	= 1000,
 	.tDQSCKMAXx2	= 11,
 	.tRASmax	= 70,
 	.tFAW		= 50
 };

 static const struct lpddr2_min_tck min_tck = {
 	.tRL		= 3,
 	.tRP_AB		= 3,
 	.tRCD		= 3,
 	.tWR		= 3,
 	.tRAS_MIN	= 3,
 	.tRRD		= 2,
 	.tWTR		= 2,
 	.tXP		= 2,
 	.tRTP		= 2,
 	.tCKE		= 3,
 	.tCKESR		= 3,
 	.tFAW		= 8
 };

 static const struct lpddr2_ac_timings *ac_timings[MAX_NUM_SPEEDBINS] = {
 	&timings_jedec_532_mhz
 };

 static const struct lpddr2_device_timings dev_4G_S4_timings = {
 	.ac_timings	= ac_timings,
 	.min_tck	= &min_tck,
 };

 /*
  * List of status registers to be controlled back to control registers
  * after initial leveling
  * readreg, writereg
  */
 const struct read_write_regs omap5_bug_00339_regs[] = {
 	{ 8,  5 },
 	{ 9,  6 },
 	{ 10, 7 },
 	{ 14, 8 },
 	{ 15, 9 },
 	{ 16, 10 },
 	{ 11, 2 },
 	{ 12, 3 },
 	{ 13, 4 },
 	{ 17, 11 },
 	{ 18, 12 },
 	{ 19, 13 },
 };

 const struct read_write_regs dra_bug_00339_regs[] = {
 	{ 7,  7 },
 	{ 8,  8 },
 	{ 9,  9 },
 	{ 10, 10 },
 	{ 11, 11 },
 	{ 12, 2 },
 	{ 13, 3 },
 	{ 14, 4 },
 	{ 15, 5 },
 	{ 16, 6 },
 	{ 17, 12 },
 	{ 18, 13 },
 	{ 19, 14 },
 	{ 20, 15 },
 	{ 21, 16 },
 	{ 22, 17 },
 	{ 23, 18 },
 	{ 24, 19 },
 	{ 25, 20 },
 	{ 26, 21}
 };

 const struct read_write_regs *get_bug_regs(u32 *iterations)
 {
 	const struct read_write_regs *bug_00339_regs_ptr = NULL;

 	switch (omap_revision()) {
 	case OMAP5430_ES1_0:
 	case OMAP5430_ES2_0:
 	case OMAP5432_ES1_0:
 	case OMAP5432_ES2_0:
 		bug_00339_regs_ptr = omap5_bug_00339_regs;
 		*iterations = sizeof(omap5_bug_00339_regs)/
 			     sizeof(omap5_bug_00339_regs[0]);
 		break;
 	case DRA762_ABZ_ES1_0:
 	case DRA762_ACD_ES1_0:
 	case DRA762_ES1_0:
 	case DRA752_ES1_0:
 	case DRA752_ES1_1:
 	case DRA752_ES2_0:
 	case DRA722_ES1_0:
 	case DRA722_ES2_0:
 	case DRA722_ES2_1:
 		bug_00339_regs_ptr = dra_bug_00339_regs;
 		*iterations = sizeof(dra_bug_00339_regs)/
 			     sizeof(dra_bug_00339_regs[0]);
 		break;
 	default:
 		printf("\n Error: UnKnown SOC");
 	}

 	return bug_00339_regs_ptr;
 }

 void emif_get_device_timings_sdp(u32 emif_nr,
 		const struct lpddr2_device_timings **cs0_device_timings,
 		const struct lpddr2_device_timings **cs1_device_timings)
 {
 	/* Identical devices on EMIF1 & EMIF2 */
 	*cs0_device_timings = &dev_4G_S4_timings;
 	*cs1_device_timings = &dev_4G_S4_timings;
 }

 void emif_get_device_timings(u32 emif_nr,
 		const struct lpddr2_device_timings **cs0_device_timings,
 		const struct lpddr2_device_timings **cs1_device_timings)
 	__attribute__((weak, alias("emif_get_device_timings_sdp")));

 #endif /* CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS */
	// SPDX-License-Identifier: GPL-2.0+
	/*
	* Timing and Organization details of the ddr device parts used in OMAP5
	* EVM
	*
	* (C) Copyright 2010
	* Texas Instruments, <www.ti.com>
	*
	* Aneesh V <aneesh@ti.com>
	* Sricharan R <r.sricharan@ti.com>
	*/

	#include <asm/emif.h>
	#include <asm/arch/sys_proto.h>

	/*
	* This file provides details of the LPDDR2 SDRAM parts used on OMAP5
	* EVM. Since the parts used and geometry are identical for
	* evm for a given OMAP5 revision, this information is kept
	* here instead of being in board directory. However the key functions
	* exported are weakly linked so that they can be over-ridden in the board
	* directory if there is a OMAP5 board in the future that uses a different
	* memory device or geometry.
	*
	* For any new board with different memory devices over-ride one or more
	* of the following functions as per the CONFIG flags you intend to enable:
	* - emif_get_reg_dump()
	* - emif_get_dmm_regs()
	* - emif_get_device_details()
	* - emif_get_device_timings()
	*/

	#ifdef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS
	const struct emif_regs emif_regs_532_mhz_2cs = {
	.sdram_config_init = 0x80800EBA,
	.sdram_config = 0x808022BA,
	.ref_ctrl = 0x0000081A,
	.sdram_tim1 = 0x772F6873,
	.sdram_tim2 = 0x304a129a,
	.sdram_tim3 = 0x02f7e45f,
	.read_idle_ctrl = 0x00050000,
	.zq_config = 0x000b3215,
	.temp_alert_config = 0x08000a05,
	.emif_ddr_phy_ctlr_1_init = 0x0E28420d,
	.emif_ddr_phy_ctlr_1 = 0x0E28420d,
	.emif_ddr_ext_phy_ctrl_1 = 0x04020080,
	.emif_ddr_ext_phy_ctrl_2 = 0x28C518A3,
	.emif_ddr_ext_phy_ctrl_3 = 0x518A3146,
	.emif_ddr_ext_phy_ctrl_4 = 0x0014628C,
	.emif_ddr_ext_phy_ctrl_5 = 0x04010040
	};

	const struct emif_regs emif_regs_532_mhz_2cs_es2 = {
	.sdram_config_init = 0x80800EBA,
	.sdram_config = 0x808022BA,
	.ref_ctrl = 0x0000081A,
	.sdram_tim1 = 0x772F6873,
	.sdram_tim2 = 0x304a129a,
	.sdram_tim3 = 0x02f7e45f,
	.read_idle_ctrl = 0x00050000,
	.zq_config = 0x100b3215,
	.temp_alert_config = 0x08000a05,
	.emif_ddr_phy_ctlr_1_init = 0x0E30400d,
	.emif_ddr_phy_ctlr_1 = 0x0E30400d,
	.emif_ddr_ext_phy_ctrl_1 = 0x04020080,
	.emif_ddr_ext_phy_ctrl_2 = 0x28C518A3,
	.emif_ddr_ext_phy_ctrl_3 = 0x518A3146,
	.emif_ddr_ext_phy_ctrl_4 = 0x0014628C,
	.emif_ddr_ext_phy_ctrl_5 = 0xC330CC33,
	};

	const struct emif_regs emif_regs_266_mhz_2cs = {
	.sdram_config_init = 0x80800EBA,
	.sdram_config = 0x808022BA,
	.ref_ctrl = 0x0000040D,
	.sdram_tim1 = 0x2A86B419,
	.sdram_tim2 = 0x1025094A,
	.sdram_tim3 = 0x026BA22F,
	.read_idle_ctrl = 0x00050000,
	.zq_config = 0x000b3215,
	.temp_alert_config = 0x08000a05,
	.emif_ddr_phy_ctlr_1_init = 0x0E28420d,
	.emif_ddr_phy_ctlr_1 = 0x0E28420d,
	.emif_ddr_ext_phy_ctrl_1 = 0x04020080,
	.emif_ddr_ext_phy_ctrl_2 = 0x0A414829,
	.emif_ddr_ext_phy_ctrl_3 = 0x14829052,
	.emif_ddr_ext_phy_ctrl_4 = 0x000520A4,
	.emif_ddr_ext_phy_ctrl_5 = 0x04010040
	};

	const struct emif_regs emif_regs_ddr3_532_mhz_1cs = {
	.sdram_config_init = 0x61851B32,
	.sdram_config = 0x61851B32,
	.sdram_config2 = 0x0,
	.ref_ctrl = 0x00001035,
	.sdram_tim1 = 0xCCCF36B3,
	.sdram_tim2 = 0x308F7FDA,
	.sdram_tim3 = 0x027F88A8,
	.read_idle_ctrl = 0x00050000,
	.zq_config = 0x0007190B,
	.temp_alert_config = 0x00000000,
	.emif_ddr_phy_ctlr_1_init = 0x0020420A,
	.emif_ddr_phy_ctlr_1 = 0x0024420A,
	.emif_ddr_ext_phy_ctrl_1 = 0x04040100,
	.emif_ddr_ext_phy_ctrl_2 = 0x00000000,
	.emif_ddr_ext_phy_ctrl_3 = 0x00000000,
	.emif_ddr_ext_phy_ctrl_4 = 0x00000000,
	.emif_ddr_ext_phy_ctrl_5 = 0x04010040,
	.emif_rd_wr_lvl_rmp_win = 0x00000000,
	.emif_rd_wr_lvl_rmp_ctl = 0x80000000,
	.emif_rd_wr_lvl_ctl = 0x00000000,
	.emif_rd_wr_exec_thresh = 0x00000305
	};

	const struct emif_regs emif_regs_ddr3_532_mhz_1cs_es2 = {
	.sdram_config_init = 0x61851B32,
	.sdram_config = 0x61851B32,
	.sdram_config2 = 0x0,
	.ref_ctrl = 0x00001035,
	.sdram_tim1 = 0xCCCF36B3,
	.sdram_tim2 = 0x308F7FDA,
	.sdram_tim3 = 0x027F88A8,
	.read_idle_ctrl = 0x00050000,
	.zq_config = 0x1007190B,
	.temp_alert_config = 0x00000000,
	.emif_ddr_phy_ctlr_1_init = 0x0030400A,
	.emif_ddr_phy_ctlr_1 = 0x0034400A,
	.emif_ddr_ext_phy_ctrl_1 = 0x04040100,
	.emif_ddr_ext_phy_ctrl_2 = 0x00000000,
	.emif_ddr_ext_phy_ctrl_3 = 0x00000000,
	.emif_ddr_ext_phy_ctrl_4 = 0x00000000,
	.emif_ddr_ext_phy_ctrl_5 = 0x4350D435,
	.emif_rd_wr_lvl_rmp_win = 0x00000000,
	.emif_rd_wr_lvl_rmp_ctl = 0x80000000,
	.emif_rd_wr_lvl_ctl = 0x00000000,
	.emif_rd_wr_exec_thresh = 0x40000305
	};

	const struct dmm_lisa_map_regs lisa_map_4G_x_2_x_2 = {
	.dmm_lisa_map_0 = 0x0,
	.dmm_lisa_map_1 = 0x0,
	.dmm_lisa_map_2 = 0x80740300,
	.dmm_lisa_map_3 = 0xFF020100,
	.is_ma_present = 0x1
	};

	static void emif_get_reg_dump_sdp(u32 emif_nr, const struct emif_regs **regs)
	{
	switch (omap_revision()) {
	case OMAP5430_ES1_0:
	*regs = &emif_regs_532_mhz_2cs;
	break;
	case OMAP5432_ES1_0:
	*regs = &emif_regs_ddr3_532_mhz_1cs;
	break;
	case OMAP5430_ES2_0:
	*regs = &emif_regs_532_mhz_2cs_es2;
	break;
	case OMAP5432_ES2_0:
	default:
	*regs = &emif_regs_ddr3_532_mhz_1cs_es2;
	break;
	}
	}

	void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs)
	__attribute__((weak, alias("emif_get_reg_dump_sdp")));

	static void emif_get_dmm_regs_sdp(const struct dmm_lisa_map_regs
	**dmm_lisa_regs)
	{
	switch (omap_revision()) {
	case OMAP5430_ES1_0:
	case OMAP5430_ES2_0:
	case OMAP5432_ES1_0:
	case OMAP5432_ES2_0:
	default:
	*dmm_lisa_regs = &lisa_map_4G_x_2_x_2;
	break;
	}

	}

	void emif_get_dmm_regs(const struct dmm_lisa_map_regs **dmm_lisa_regs)
	__attribute__((weak, alias("emif_get_dmm_regs_sdp")));
	#else

	static const struct lpddr2_device_details dev_4G_S4_details = {
	.type = LPDDR2_TYPE_S4,
	.density = LPDDR2_DENSITY_4Gb,
	.io_width = LPDDR2_IO_WIDTH_32,
	.manufacturer = LPDDR2_MANUFACTURER_SAMSUNG
	};

	static void emif_get_device_details_sdp(u32 emif_nr,
	struct lpddr2_device_details *cs0_device_details,
	struct lpddr2_device_details *cs1_device_details)
	{
	/* EMIF1 & EMIF2 have identical configuration */
	*cs0_device_details = dev_4G_S4_details;
	*cs1_device_details = dev_4G_S4_details;
	}

	void emif_get_device_details(u32 emif_nr,
	struct lpddr2_device_details *cs0_device_details,
	struct lpddr2_device_details *cs1_device_details)
	__attribute__((weak, alias("emif_get_device_details_sdp")));

	#endif /* CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS */

	const u32 ext_phy_ctrl_const_base[] = {
	0x01004010,
	0x00001004,
	0x04010040,
	0x01004010,
	0x00001004,
	0x00000000,
	0x00000000,
	0x00000000,
	0x80080080,
	0x00800800,
	0x08102040,
	0x00000001,
	0x540A8150,
	0xA81502a0,
	0x002A0540,
	0x00000000,
	0x00000000,
	0x00000000,
	0x00000077,
	0x0
	};

	const u32 ddr3_ext_phy_ctrl_const_base_es1[] = {
	0x01004010,
	0x00001004,
	0x04010040,
	0x01004010,
	0x00001004,
	0x00000000,
	0x00000000,
	0x00000000,
	0x80080080,
	0x00800800,
	0x08102040,
	0x00000002,
	0x0,
	0x0,
	0x0,
	0x00000000,
	0x00000000,
	0x00000000,
	0x00000057,
	0x0
	};

	const u32 ddr3_ext_phy_ctrl_const_base_es2[] = {
	0x50D4350D,
	0x00000D43,
	0x04010040,
	0x01004010,
	0x00001004,
	0x00000000,
	0x00000000,
	0x00000000,
	0x80080080,
	0x00800800,
	0x08102040,
	0x00000002,
	0x00000000,
	0x00000000,
	0x00000000,
	0x00000000,
	0x00000000,
	0x00000000,
	0x00000057,
	0x0
	};

	/* Ext phy ctrl 1-35 regs */
	const u32
	dra_ddr3_ext_phy_ctrl_const_base_es1_emif1[] = {
	0x10040100,
	0x00910091,
	0x00950095,
	0x009B009B,
	0x009E009E,
	0x00980098,
	0x00340034,
	0x00350035,
	0x00340034,
	0x00310031,
	0x00340034,
	0x007F007F,
	0x007F007F,
	0x007F007F,
	0x007F007F,
	0x007F007F,
	0x00480048,
	0x004A004A,
	0x00520052,
	0x00550055,
	0x00500050,
	0x00000000,
	0x00600020,
	0x40011080,
	0x08102040,
	0x0,
	0x0,
	0x0,
	0x0,
	0x0,
	0x0,
	0x0,
	0x0,
	0x0,
	0x0
	};

	/* Ext phy ctrl 1-35 regs */
	const u32
	dra_ddr3_ext_phy_ctrl_const_base_es1_emif2[] = {
	0x10040100,
	0x00910091,
	0x00950095,
	0x009B009B,
	0x009E009E,
	0x00980098,
	0x00330033,
	0x00330033,
	0x002F002F,
	0x00320032,
	0x00310031,
	0x007F007F,
	0x007F007F,
	0x007F007F,
	0x007F007F,
	0x007F007F,
	0x00520052,
	0x00520052,
	0x00470047,
	0x00490049,
	0x00500050,
	0x00000000,
	0x00600020,
	0x40011080,
	0x08102040,
	0x0,
	0x0,
	0x0,
	0x0,
	0x0,
	0x0,
	0x0,
	0x0,
	0x0,
	0x0
	};

	/* Ext phy ctrl 1-35 regs */
	const u32
	dra_ddr3_ext_phy_ctrl_const_base_666MHz[] = {
	0x10040100,
	0x00A400A4,
	0x00A900A9,
	0x00B000B0,
	0x00B000B0,
	0x00A400A4,
	0x00390039,
	0x00320032,
	0x00320032,
	0x00320032,
	0x00440044,
	0x00550055,
	0x00550055,
	0x00550055,
	0x00550055,
	0x007F007F,
	0x004D004D,
	0x00430043,
	0x00560056,
	0x00540054,
	0x00600060,
	0x0,
	0x00600020,
	0x40010080,
	0x08102040,
	0x0,
	0x0,
	0x0,
	0x0,
	0x0,
	0x0,
	0x0,
	0x0,
	0x0,
	0x0
	};

	const u32 dra_ddr3_ext_phy_ctrl_const_base_666MHz_es2[] = {
	0x04040100,
	0x006B009F,
	0x006B00A2,
	0x006B00A8,
	0x006B00A8,
	0x006B00B2,
	0x002F002F,
	0x002F002F,
	0x002F002F,
	0x002F002F,
	0x002F002F,
	0x00600073,
	0x00600071,
	0x0060007C,
	0x0060007E,
	0x00600084,
	0x00400053,
	0x00400051,
	0x0040005C,
	0x0040005E,
	0x00400064,
	0x00800080,
	0x00800080,
	0x40010080,
	0x08102040,
	0x005B008F,
	0x005B0092,
	0x005B0098,
	0x005B0098,
	0x005B00A2,
	0x00300043,
	0x00300041,
	0x0030004C,
	0x0030004E,
	0x00300054,
	0x00000077
	};

	const struct lpddr2_mr_regs mr_regs = {
	.mr1 = MR1_BL_8_BT_SEQ_WRAP_EN_NWR_8,
	.mr2 = 0x6,
	.mr3 = 0x1,
	.mr10 = MR10_ZQ_ZQINIT,
	.mr16 = MR16_REF_FULL_ARRAY
	};

	void __weak emif_get_ext_phy_ctrl_const_regs(u32 emif_nr,
	const u32 **regs,
	u32 *size)
	{
	switch (omap_revision()) {
	case OMAP5430_ES1_0:
	case OMAP5430_ES2_0:
	*regs = ext_phy_ctrl_const_base;
	*size = ARRAY_SIZE(ext_phy_ctrl_const_base);
	break;
	case OMAP5432_ES1_0:
	*regs = ddr3_ext_phy_ctrl_const_base_es1;
	*size = ARRAY_SIZE(ddr3_ext_phy_ctrl_const_base_es1);
	break;
	case OMAP5432_ES2_0:
	*regs = ddr3_ext_phy_ctrl_const_base_es2;
	*size = ARRAY_SIZE(ddr3_ext_phy_ctrl_const_base_es2);
	break;
	case DRA752_ES1_0:
	case DRA752_ES1_1:
	case DRA752_ES2_0:
	if (emif_nr == 1) {
	*regs = dra_ddr3_ext_phy_ctrl_const_base_es1_emif1;
	*size =
	ARRAY_SIZE(dra_ddr3_ext_phy_ctrl_const_base_es1_emif1);
	} else {
	*regs = dra_ddr3_ext_phy_ctrl_const_base_es1_emif2;
	*size =
	ARRAY_SIZE(dra_ddr3_ext_phy_ctrl_const_base_es1_emif2);
	}
	break;
	case DRA722_ES1_0:
	*regs = dra_ddr3_ext_phy_ctrl_const_base_666MHz;
	*size = ARRAY_SIZE(dra_ddr3_ext_phy_ctrl_const_base_666MHz);
	break;
	case DRA762_ES1_0:
	case DRA762_ABZ_ES1_0:
	case DRA762_ACD_ES1_0:
	case DRA722_ES2_0:
	case DRA722_ES2_1:
	*regs = dra_ddr3_ext_phy_ctrl_const_base_666MHz_es2;
	*size = ARRAY_SIZE(dra_ddr3_ext_phy_ctrl_const_base_666MHz_es2);
	break;
	default:
	*regs = ddr3_ext_phy_ctrl_const_base_es2;
	*size = ARRAY_SIZE(ddr3_ext_phy_ctrl_const_base_es2);

	}
	}

	void get_lpddr2_mr_regs(const struct lpddr2_mr_regs **regs)
	{
	*regs = &mr_regs;
	}

	static void do_ext_phy_settings_omap5(u32 base, const struct emif_regs *regs)
	{
	u32 *ext_phy_ctrl_base = 0;
	u32 *emif_ext_phy_ctrl_base = 0;
	u32 emif_nr;
	const u32 *ext_phy_ctrl_const_regs;
	u32 i = 0;
	u32 size;

	emif_nr = (base == EMIF1_BASE) ? 1 : 2;

	struct emif_reg_struct emif = (struct emif_reg_struct )base;

	ext_phy_ctrl_base = (u32 *) &(regs->emif_ddr_ext_phy_ctrl_1);
	emif_ext_phy_ctrl_base = (u32 *) &(emif->emif_ddr_ext_phy_ctrl_1);

	/* Configure external phy control timing registers */
	for (i = 0; i < EMIF_EXT_PHY_CTRL_TIMING_REG; i++) {
	writel(*ext_phy_ctrl_base, emif_ext_phy_ctrl_base++);
	/* Update shadow registers */
	writel(*ext_phy_ctrl_base++, emif_ext_phy_ctrl_base++);
	}

	/*
	* external phy 6-24 registers do not change with
	* ddr frequency
	*/
	emif_get_ext_phy_ctrl_const_regs(emif_nr,
	&ext_phy_ctrl_const_regs, &size);

	for (i = 0; i < size; i++) {
	writel(ext_phy_ctrl_const_regs[i],
	emif_ext_phy_ctrl_base++);
	/* Update shadow registers */
	writel(ext_phy_ctrl_const_regs[i],
	emif_ext_phy_ctrl_base++);
	}
	}

	static void do_ext_phy_settings_dra7(u32 base, const struct emif_regs *regs)
	{
	struct emif_reg_struct emif = (struct emif_reg_struct )base;
	u32 *emif_ext_phy_ctrl_base = 0;
	u32 emif_nr;
	const u32 *ext_phy_ctrl_const_regs;
	u32 i, hw_leveling, size, phy;

	emif_nr = (base == EMIF1_BASE) ? 1 : 2;

	hw_leveling = regs->emif_rd_wr_lvl_rmp_ctl >> EMIF_REG_RDWRLVL_EN_SHIFT;
	phy = regs->emif_ddr_phy_ctlr_1_init;

	emif_ext_phy_ctrl_base = (u32 *)&(emif->emif_ddr_ext_phy_ctrl_1);

	emif_get_ext_phy_ctrl_const_regs(emif_nr,
	&ext_phy_ctrl_const_regs, &size);

	writel(ext_phy_ctrl_const_regs[0], &emif_ext_phy_ctrl_base[0]);
	writel(ext_phy_ctrl_const_regs[0], &emif_ext_phy_ctrl_base[1]);

	/*
	* Copy the predefined PHY register values
	* if leveling is disabled.
	*/
	if (phy & EMIF_DDR_PHY_CTRL_1_RDLVLGATE_MASK_MASK)
	for (i = 1; i < 6; i++) {
	writel(ext_phy_ctrl_const_regs[i],
	&emif_ext_phy_ctrl_base[i * 2]);
	writel(ext_phy_ctrl_const_regs[i],
	&emif_ext_phy_ctrl_base[i * 2 + 1]);
	}

	if (phy & EMIF_DDR_PHY_CTRL_1_RDLVL_MASK_MASK)
	for (i = 6; i < 11; i++) {
	writel(ext_phy_ctrl_const_regs[i],
	&emif_ext_phy_ctrl_base[i * 2]);
	writel(ext_phy_ctrl_const_regs[i],
	&emif_ext_phy_ctrl_base[i * 2 + 1]);
	}

	if (phy & EMIF_DDR_PHY_CTRL_1_WRLVL_MASK_MASK)
	for (i = 11; i < 25; i++) {
	writel(ext_phy_ctrl_const_regs[i],
	&emif_ext_phy_ctrl_base[i * 2]);
	writel(ext_phy_ctrl_const_regs[i],
	&emif_ext_phy_ctrl_base[i * 2 + 1]);
	}

	if (hw_leveling) {
	/*
	* Write the init value for HW levling to occur
	*/
	for (i = 21; i < 35; i++) {
	writel(ext_phy_ctrl_const_regs[i],
	&emif_ext_phy_ctrl_base[i * 2]);
	writel(ext_phy_ctrl_const_regs[i],
	&emif_ext_phy_ctrl_base[i * 2 + 1]);
	}
	}
	}

	void do_ext_phy_settings(u32 base, const struct emif_regs *regs)
	{
	if (is_omap54xx())
	do_ext_phy_settings_omap5(base, regs);
	else
	do_ext_phy_settings_dra7(base, regs);
	}

	#ifndef CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS
	static const struct lpddr2_ac_timings timings_jedec_532_mhz = {
	.max_freq = 532000000,
	.RL = 8,
	.tRPab = 21,
	.tRCD = 18,
	.tWR = 15,
	.tRASmin = 42,
	.tRRD = 10,
	.tWTRx2 = 15,
	.tXSR = 140,
	.tXPx2 = 15,
	.tRFCab = 130,
	.tRTPx2 = 15,
	.tCKE = 3,
	.tCKESR = 15,
	.tZQCS = 90,
	.tZQCL = 360,
	.tZQINIT = 1000,
	.tDQSCKMAXx2 = 11,
	.tRASmax = 70,
	.tFAW = 50
	};

	static const struct lpddr2_min_tck min_tck = {
	.tRL = 3,
	.tRP_AB = 3,
	.tRCD = 3,
	.tWR = 3,
	.tRAS_MIN = 3,
	.tRRD = 2,
	.tWTR = 2,
	.tXP = 2,
	.tRTP = 2,
	.tCKE = 3,
	.tCKESR = 3,
	.tFAW = 8
	};

	static const struct lpddr2_ac_timings *ac_timings[MAX_NUM_SPEEDBINS] = {
	&timings_jedec_532_mhz
	};

	static const struct lpddr2_device_timings dev_4G_S4_timings = {
	.ac_timings = ac_timings,
	.min_tck = &min_tck,
	};

	/*
	* List of status registers to be controlled back to control registers
	* after initial leveling
	* readreg, writereg
	*/
	const struct read_write_regs omap5_bug_00339_regs[] = {
	{ 8, 5 },
	{ 9, 6 },
	{ 10, 7 },
	{ 14, 8 },
	{ 15, 9 },
	{ 16, 10 },
	{ 11, 2 },
	{ 12, 3 },
	{ 13, 4 },
	{ 17, 11 },
	{ 18, 12 },
	{ 19, 13 },
	};

	const struct read_write_regs dra_bug_00339_regs[] = {
	{ 7, 7 },
	{ 8, 8 },
	{ 9, 9 },
	{ 10, 10 },
	{ 11, 11 },
	{ 12, 2 },
	{ 13, 3 },
	{ 14, 4 },
	{ 15, 5 },
	{ 16, 6 },
	{ 17, 12 },
	{ 18, 13 },
	{ 19, 14 },
	{ 20, 15 },
	{ 21, 16 },
	{ 22, 17 },
	{ 23, 18 },
	{ 24, 19 },
	{ 25, 20 },
	{ 26, 21}
	};

	const struct read_write_regs get_bug_regs(u32 iterations)
	{
	const struct read_write_regs *bug_00339_regs_ptr = NULL;

	switch (omap_revision()) {
	case OMAP5430_ES1_0:
	case OMAP5430_ES2_0:
	case OMAP5432_ES1_0:
	case OMAP5432_ES2_0:
	bug_00339_regs_ptr = omap5_bug_00339_regs;
	*iterations = sizeof(omap5_bug_00339_regs)/
	sizeof(omap5_bug_00339_regs[0]);
	break;
	case DRA762_ABZ_ES1_0:
	case DRA762_ACD_ES1_0:
	case DRA762_ES1_0:
	case DRA752_ES1_0:
	case DRA752_ES1_1:
	case DRA752_ES2_0:
	case DRA722_ES1_0:
	case DRA722_ES2_0:
	case DRA722_ES2_1:
	bug_00339_regs_ptr = dra_bug_00339_regs;
	*iterations = sizeof(dra_bug_00339_regs)/
	sizeof(dra_bug_00339_regs[0]);
	break;
	default:
	printf("\n Error: UnKnown SOC");
	}

	return bug_00339_regs_ptr;
	}

	void emif_get_device_timings_sdp(u32 emif_nr,
	const struct lpddr2_device_timings **cs0_device_timings,
	const struct lpddr2_device_timings **cs1_device_timings)
	{
	/* Identical devices on EMIF1 & EMIF2 */
	*cs0_device_timings = &dev_4G_S4_timings;
	*cs1_device_timings = &dev_4G_S4_timings;
	}

	void emif_get_device_timings(u32 emif_nr,
	const struct lpddr2_device_timings **cs0_device_timings,
	const struct lpddr2_device_timings **cs1_device_timings)
	__attribute__((weak, alias("emif_get_device_timings_sdp")));

	#endif /* CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS */