board: ti: dra76-evm: Add DDR data

dra76-evm has the ddr parts connectedi running at 666MHz:
EMIF1: MT41K512M16HA-125 AIT:A  x 2
EMIF2: MT41K512M8RH-125-AAT:E x 4
Add support for configuring the above DDR parts.

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>

arch/arm/mach-omap2/omap5/hw_data.c

@@ -790,6 +790,7 @@ void get_ioregs(const struct ctrl_ioregs **regs)
 	case DRA752_ES1_0:
 	case DRA752_ES1_1:
 	case DRA752_ES2_0:
+	case DRA762_ES1_0:
 		*regs = &ioregs_dra7xx_es1;
 		break;
 	case DRA722_ES1_0:

arch/arm/mach-omap2/omap5/sdram.c

@@ -480,6 +480,7 @@ void __weak emif_get_ext_phy_ctrl_const_regs(u32 emif_nr,
 		*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 DRA722_ES2_0:
 		*regs = dra_ddr3_ext_phy_ctrl_const_base_666MHz_es2;
 		*size = ARRAY_SIZE(dra_ddr3_ext_phy_ctrl_const_base_666MHz_es2);
@@ -709,6 +710,7 @@ const struct read_write_regs *get_bug_regs(u32 *iterations)
 		*iterations = sizeof(omap5_bug_00339_regs)/
 			     sizeof(omap5_bug_00339_regs[0]);
 		break;
+	case DRA762_ES1_0:
 	case DRA752_ES1_0:
 	case DRA752_ES1_1:
 	case DRA752_ES2_0:

board/ti/dra7xx/evm.c

@@ -210,6 +210,56 @@ const struct emif_regs emif2_ddr3_532_mhz_1cs_2G = {
 	.emif_rd_wr_exec_thresh         = 0x00000305
 };
 
+const struct emif_regs emif_1_regs_ddr3_666_mhz_1cs_dra76 = {
+	.sdram_config_init              = 0x61862B32,
+	.sdram_config                   = 0x61862B32,
+	.sdram_config2			= 0x00000000,
+	.ref_ctrl                       = 0x0000514C,
+	.ref_ctrl_final			= 0x0000144A,
+	.sdram_tim1                     = 0xD113783C,
+	.sdram_tim2                     = 0x30B47FE3,
+	.sdram_tim3                     = 0x409F8AD8,
+	.read_idle_ctrl                 = 0x00050000,
+	.zq_config                      = 0x5007190B,
+	.temp_alert_config              = 0x00000000,
+	.emif_ddr_phy_ctlr_1_init       = 0x0824400D,
+	.emif_ddr_phy_ctlr_1            = 0x0E24400D,
+	.emif_ddr_ext_phy_ctrl_1        = 0x04040100,
+	.emif_ddr_ext_phy_ctrl_2        = 0x006B009F,
+	.emif_ddr_ext_phy_ctrl_3        = 0x006B00A2,
+	.emif_ddr_ext_phy_ctrl_4        = 0x006B00A8,
+	.emif_ddr_ext_phy_ctrl_5        = 0x006B00A8,
+	.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_2_regs_ddr3_666_mhz_1cs_dra76 = {
+	.sdram_config_init              = 0x61862B32,
+	.sdram_config                   = 0x61862B32,
+	.sdram_config2			= 0x00000000,
+	.ref_ctrl                       = 0x0000514C,
+	.ref_ctrl_final			= 0x0000144A,
+	.sdram_tim1                     = 0xD113781C,
+	.sdram_tim2                     = 0x30B47FE3,
+	.sdram_tim3                     = 0x409F8AD8,
+	.read_idle_ctrl                 = 0x00050000,
+	.zq_config                      = 0x5007190B,
+	.temp_alert_config              = 0x00000000,
+	.emif_ddr_phy_ctlr_1_init       = 0x0824400D,
+	.emif_ddr_phy_ctlr_1            = 0x0E24400D,
+	.emif_ddr_ext_phy_ctrl_1        = 0x04040100,
+	.emif_ddr_ext_phy_ctrl_2        = 0x006B009F,
+	.emif_ddr_ext_phy_ctrl_3        = 0x006B00A2,
+	.emif_ddr_ext_phy_ctrl_4        = 0x006B00A8,
+	.emif_ddr_ext_phy_ctrl_5        = 0x006B00A8,
+	.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
+};
+
 void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs)
 {
 	u64 ram_size;
@@ -235,6 +285,12 @@ void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs)
 			break;
 		}
 		break;
+	case DRA762_ES1_0:
+		if (emif_nr == 1)
+			*regs = &emif_1_regs_ddr3_666_mhz_1cs_dra76;
+		else
+			*regs = &emif_2_regs_ddr3_666_mhz_1cs_dra76;
+		break;
 	case DRA722_ES1_0:
 	case DRA722_ES2_0:
 		if (ram_size < CONFIG_MAX_MEM_MAPPED)
@@ -290,6 +346,7 @@ void emif_get_dmm_regs(const struct dmm_lisa_map_regs **dmm_lisa_regs)
 	ram_size = board_ti_get_emif_size();
 
 	switch (omap_revision()) {
+	case DRA762_ES1_0:
 	case DRA752_ES1_0:
 	case DRA752_ES1_1:
 	case DRA752_ES2_0:
@@ -1009,8 +1066,8 @@ static inline void vtt_regulator_enable(void)
 	if (omap_hw_init_context() == OMAP_INIT_CONTEXT_UBOOT_AFTER_SPL)
 		return;
 
-	/* Do not enable VTT for DRA722 */
-	if (is_dra72x())
+	/* Do not enable VTT for DRA722 or DRA76x */
+	if (is_dra72x() || is_dra76x())
 		return;
 
 	/*