omap4: make omap4 code common for future reuse

Much of omap4 soc support code can be reused for omap5.
Move them to the omap-common directory to facilitate
this.

Signed-off-by: sricharan <r.sricharan@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>

6 files changed, 2724 insertions, 0 deletions

diff --git a/arch/arm/cpu/armv7/omap-common/Makefile b/arch/arm/cpu/armv7/omap-common/Makefile
index 1dee81f..ea2545d 100644
--- a/arch/arm/cpu/armv7/omap-common/Makefile
+++ b/arch/arm/cpu/armv7/omap-common/Makefile
@@ -33,6 +33,13 @@ ifdef CONFIG_OMAP
 COBJS	+= gpio.o
 endif
 
+ifdef CONFIG_OMAP44XX
+COBJS	+= hwinit-common.o
+COBJS	+= clocks-common.o
+COBJS	+= emif-common.o
+SOBJS	+= lowlevel_init.o
+endif
+
 ifdef CONFIG_SPL_BUILD
 COBJS	+= spl.o
 ifdef CONFIG_SPL_NAND_SUPPORT
@@ -43,6 +50,12 @@ COBJS	+= spl_mmc.o
 endif
 endif
 
+ifndef CONFIG_SPL_BUILD
+ifdef CONFIG_OMAP44XX
+COBJS	+= mem-common.o
+endif
+endif
+
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
 
diff --git a/arch/arm/cpu/armv7/omap-common/clocks-common.c b/arch/arm/cpu/armv7/omap-common/clocks-common.c
new file mode 100644
index 0000000..095ba39
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap-common/clocks-common.c
@@ -0,0 +1,941 @@
+/*
+ *
+ * Clock initialization for OMAP4
+ *
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ *
+ * Aneesh V <aneesh@ti.com>
+ *
+ * Based on previous work by:
+ *	Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *	Rajendra Nayak <rnayak@ti.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+#include <asm/omap_common.h>
+#include <asm/gpio.h>
+#include <asm/arch/clocks.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/utils.h>
+#include <asm/omap_gpio.h>
+
+#ifndef CONFIG_SPL_BUILD
+/*
+ * printing to console doesn't work unless
+ * this code is executed from SPL
+ */
+#define printf(fmt, args...)
+#define puts(s)
+#endif
+
+#define abs(x) (((x) < 0) ? ((x)*-1) : (x))
+
+struct omap4_prcm_regs *const prcm = (struct omap4_prcm_regs *)0x4A004100;
+
+static const u32 sys_clk_array[8] = {
+	12000000,	       /* 12 MHz */
+	13000000,	       /* 13 MHz */
+	16800000,	       /* 16.8 MHz */
+	19200000,	       /* 19.2 MHz */
+	26000000,	       /* 26 MHz */
+	27000000,	       /* 27 MHz */
+	38400000,	       /* 38.4 MHz */
+};
+
+/*
+ * The M & N values in the following tables are created using the
+ * following tool:
+ * tools/omap/clocks_get_m_n.c
+ * Please use this tool for creating the table for any new frequency.
+ */
+
+/* dpll locked at 1840 MHz MPU clk at 920 MHz(OPP Turbo 4460) - DCC OFF */
+static const struct dpll_params mpu_dpll_params_1840mhz[NUM_SYS_CLKS] = {
+	{230, 2, 1, -1, -1, -1, -1, -1},	/* 12 MHz   */
+	{920, 12, 1, -1, -1, -1, -1, -1},	/* 13 MHz   */
+	{219, 3, 1, -1, -1, -1, -1, -1},	/* 16.8 MHz */
+	{575, 11, 1, -1, -1, -1, -1, -1},	/* 19.2 MHz */
+	{460, 12, 1, -1, -1, -1, -1, -1},	/* 26 MHz   */
+	{920, 26, 1, -1, -1, -1, -1, -1},	/* 27 MHz   */
+	{575, 23, 1, -1, -1, -1, -1, -1}	/* 38.4 MHz */
+};
+
+/* dpll locked at 1584 MHz - MPU clk at 792 MHz(OPP Turbo 4430) */
+static const struct dpll_params mpu_dpll_params_1584mhz[NUM_SYS_CLKS] = {
+	{66, 0, 1, -1, -1, -1, -1, -1},		/* 12 MHz   */
+	{792, 12, 1, -1, -1, -1, -1, -1},	/* 13 MHz   */
+	{330, 6, 1, -1, -1, -1, -1, -1},	/* 16.8 MHz */
+	{165, 3, 1, -1, -1, -1, -1, -1},	/* 19.2 MHz */
+	{396, 12, 1, -1, -1, -1, -1, -1},	/* 26 MHz   */
+	{88, 2, 1, -1, -1, -1, -1, -1},		/* 27 MHz   */
+	{165, 7, 1, -1, -1, -1, -1, -1}		/* 38.4 MHz */
+};
+
+/* dpll locked at 1200 MHz - MPU clk at 600 MHz */
+static const struct dpll_params mpu_dpll_params_1200mhz[NUM_SYS_CLKS] = {
+	{50, 0, 1, -1, -1, -1, -1, -1},		/* 12 MHz   */
+	{600, 12, 1, -1, -1, -1, -1, -1},	/* 13 MHz   */
+	{250, 6, 1, -1, -1, -1, -1, -1},	/* 16.8 MHz */
+	{125, 3, 1, -1, -1, -1, -1, -1},	/* 19.2 MHz */
+	{300, 12, 1, -1, -1, -1, -1, -1},	/* 26 MHz   */
+	{200, 8, 1, -1, -1, -1, -1, -1},	/* 27 MHz   */
+	{125, 7, 1, -1, -1, -1, -1, -1}		/* 38.4 MHz */
+};
+
+static const struct dpll_params core_dpll_params_1600mhz[NUM_SYS_CLKS] = {
+	{200, 2, 1, 5, 8, 4, 6, 5},	/* 12 MHz   */
+	{800, 12, 1, 5, 8, 4, 6, 5},	/* 13 MHz   */
+	{619, 12, 1, 5, 8, 4, 6, 5},	/* 16.8 MHz */
+	{125, 2, 1, 5, 8, 4, 6, 5},	/* 19.2 MHz */
+	{400, 12, 1, 5, 8, 4, 6, 5},	/* 26 MHz   */
+	{800, 26, 1, 5, 8, 4, 6, 5},	/* 27 MHz   */
+	{125, 5, 1, 5, 8, 4, 6, 5}	/* 38.4 MHz */
+};
+
+static const struct dpll_params core_dpll_params_es1_1524mhz[NUM_SYS_CLKS] = {
+	{127, 1, 1, 5, 8, 4, 6, 5},	/* 12 MHz   */
+	{762, 12, 1, 5, 8, 4, 6, 5},	/* 13 MHz   */
+	{635, 13, 1, 5, 8, 4, 6, 5},	/* 16.8 MHz */
+	{635, 15, 1, 5, 8, 4, 6, 5},	/* 19.2 MHz */
+	{381, 12, 1, 5, 8, 4, 6, 5},	/* 26 MHz   */
+	{254, 8, 1, 5, 8, 4, 6, 5},	/* 27 MHz   */
+	{496, 24, 1, 5, 8, 4, 6, 5}	/* 38.4 MHz */
+};
+
+static const struct dpll_params
+		core_dpll_params_es2_1600mhz_ddr200mhz[NUM_SYS_CLKS] = {
+	{200, 2, 2, 5, 8, 4, 6, 5},	/* 12 MHz   */
+	{800, 12, 2, 5, 8, 4, 6, 5},	/* 13 MHz   */
+	{619, 12, 2, 5, 8, 4, 6, 5},	/* 16.8 MHz */
+	{125, 2, 2, 5, 8, 4, 6, 5},	/* 19.2 MHz */
+	{400, 12, 2, 5, 8, 4, 6, 5},	/* 26 MHz   */
+	{800, 26, 2, 5, 8, 4, 6, 5},	/* 27 MHz   */
+	{125, 5, 2, 5, 8, 4, 6, 5}	/* 38.4 MHz */
+};
+
+static const struct dpll_params per_dpll_params_1536mhz[NUM_SYS_CLKS] = {
+	{64, 0, 8, 6, 12, 9, 4, 5},	/* 12 MHz   */
+	{768, 12, 8, 6, 12, 9, 4, 5},	/* 13 MHz   */
+	{320, 6, 8, 6, 12, 9, 4, 5},	/* 16.8 MHz */
+	{40, 0, 8, 6, 12, 9, 4, 5},	/* 19.2 MHz */
+	{384, 12, 8, 6, 12, 9, 4, 5},	/* 26 MHz   */
+	{256, 8, 8, 6, 12, 9, 4, 5},	/* 27 MHz   */
+	{20, 0, 8, 6, 12, 9, 4, 5}	/* 38.4 MHz */
+};
+
+static const struct dpll_params iva_dpll_params_1862mhz[NUM_SYS_CLKS] = {
+	{931, 11, -1, -1, 4, 7, -1, -1},	/* 12 MHz   */
+	{931, 12, -1, -1, 4, 7, -1, -1},	/* 13 MHz   */
+	{665, 11, -1, -1, 4, 7, -1, -1},	/* 16.8 MHz */
+	{727, 14, -1, -1, 4, 7, -1, -1},	/* 19.2 MHz */
+	{931, 25, -1, -1, 4, 7, -1, -1},	/* 26 MHz   */
+	{931, 26, -1, -1, 4, 7, -1, -1},	/* 27 MHz   */
+	{412, 16, -1, -1, 4, 7, -1, -1}		/* 38.4 MHz */
+};
+
+/* ABE M & N values with sys_clk as source */
+static const struct dpll_params
+		abe_dpll_params_sysclk_196608khz[NUM_SYS_CLKS] = {
+	{49, 5, 1, 1, -1, -1, -1, -1},	/* 12 MHz   */
+	{68, 8, 1, 1, -1, -1, -1, -1},	/* 13 MHz   */
+	{35, 5, 1, 1, -1, -1, -1, -1},	/* 16.8 MHz */
+	{46, 8, 1, 1, -1, -1, -1, -1},	/* 19.2 MHz */
+	{34, 8, 1, 1, -1, -1, -1, -1},	/* 26 MHz   */
+	{29, 7, 1, 1, -1, -1, -1, -1},	/* 27 MHz   */
+	{64, 24, 1, 1, -1, -1, -1, -1}	/* 38.4 MHz */
+};
+
+/* ABE M & N values with 32K clock as source */
+static const struct dpll_params abe_dpll_params_32k_196608khz = {
+	750, 0, 1, 1, -1, -1, -1, -1
+};
+
+
+static const struct dpll_params usb_dpll_params_1920mhz[NUM_SYS_CLKS] = {
+	{80, 0, 2, -1, -1, -1, -1, -1},		/* 12 MHz   */
+	{960, 12, 2, -1, -1, -1, -1, -1},	/* 13 MHz   */
+	{400, 6, 2, -1, -1, -1, -1, -1},	/* 16.8 MHz */
+	{50, 0, 2, -1, -1, -1, -1, -1},		/* 19.2 MHz */
+	{480, 12, 2, -1, -1, -1, -1, -1},	/* 26 MHz   */
+	{320, 8, 2, -1, -1, -1, -1, -1},	/* 27 MHz   */
+	{25, 0, 2, -1, -1, -1, -1, -1}		/* 38.4 MHz */
+};
+
+static inline u32 __get_sys_clk_index(void)
+{
+	u32 ind;
+	/*
+	 * For ES1 the ROM code calibration of sys clock is not reliable
+	 * due to hw issue. So, use hard-coded value. If this value is not
+	 * correct for any board over-ride this function in board file
+	 * From ES2.0 onwards you will get this information from
+	 * CM_SYS_CLKSEL
+	 */
+	if (omap_revision() == OMAP4430_ES1_0)
+		ind = OMAP_SYS_CLK_IND_38_4_MHZ;
+	else {
+		/* SYS_CLKSEL - 1 to match the dpll param array indices */
+		ind = (readl(&prcm->cm_sys_clksel) &
+			CM_SYS_CLKSEL_SYS_CLKSEL_MASK) - 1;
+	}
+	return ind;
+}
+
+u32 get_sys_clk_index(void)
+	__attribute__ ((weak, alias("__get_sys_clk_index")));
+
+u32 get_sys_clk_freq(void)
+{
+	u8 index = get_sys_clk_index();
+	return sys_clk_array[index];
+}
+
+static inline void do_bypass_dpll(u32 *const base)
+{
+	struct dpll_regs *dpll_regs = (struct dpll_regs *)base;
+
+	clrsetbits_le32(&dpll_regs->cm_clkmode_dpll,
+			CM_CLKMODE_DPLL_DPLL_EN_MASK,
+			DPLL_EN_FAST_RELOCK_BYPASS <<
+			CM_CLKMODE_DPLL_EN_SHIFT);
+}
+
+static inline void wait_for_bypass(u32 *const base)
+{
+	struct dpll_regs *const dpll_regs = (struct dpll_regs *)base;
+
+	if (!wait_on_value(ST_DPLL_CLK_MASK, 0, &dpll_regs->cm_idlest_dpll,
+				LDELAY)) {
+		printf("Bypassing DPLL failed %p\n", base);
+	}
+}
+
+static inline void do_lock_dpll(u32 *const base)
+{
+	struct dpll_regs *const dpll_regs = (struct dpll_regs *)base;
+
+	clrsetbits_le32(&dpll_regs->cm_clkmode_dpll,
+		      CM_CLKMODE_DPLL_DPLL_EN_MASK,
+		      DPLL_EN_LOCK << CM_CLKMODE_DPLL_EN_SHIFT);
+}
+
+static inline void wait_for_lock(u32 *const base)
+{
+	struct dpll_regs *const dpll_regs = (struct dpll_regs *)base;
+
+	if (!wait_on_value(ST_DPLL_CLK_MASK, ST_DPLL_CLK_MASK,
+		&dpll_regs->cm_idlest_dpll, LDELAY)) {
+		printf("DPLL locking failed for %p\n", base);
+		hang();
+	}
+}
+
+static void do_setup_dpll(u32 *const base, const struct dpll_params *params,
+				u8 lock)
+{
+	u32 temp;
+	struct dpll_regs *const dpll_regs = (struct dpll_regs *)base;
+
+	bypass_dpll(base);
+
+	/* Set M & N */
+	temp = readl(&dpll_regs->cm_clksel_dpll);
+
+	temp &= ~CM_CLKSEL_DPLL_M_MASK;
+	temp |= (params->m << CM_CLKSEL_DPLL_M_SHIFT) & CM_CLKSEL_DPLL_M_MASK;
+
+	temp &= ~CM_CLKSEL_DPLL_N_MASK;
+	temp |= (params->n << CM_CLKSEL_DPLL_N_SHIFT) & CM_CLKSEL_DPLL_N_MASK;
+
+	writel(temp, &dpll_regs->cm_clksel_dpll);
+
+	/* Lock */
+	if (lock)
+		do_lock_dpll(base);
+
+	/* Setup post-dividers */
+	if (params->m2 >= 0)
+		writel(params->m2, &dpll_regs->cm_div_m2_dpll);
+	if (params->m3 >= 0)
+		writel(params->m3, &dpll_regs->cm_div_m3_dpll);
+	if (params->m4 >= 0)
+		writel(params->m4, &dpll_regs->cm_div_m4_dpll);
+	if (params->m5 >= 0)
+		writel(params->m5, &dpll_regs->cm_div_m5_dpll);
+	if (params->m6 >= 0)
+		writel(params->m6, &dpll_regs->cm_div_m6_dpll);
+	if (params->m7 >= 0)
+		writel(params->m7, &dpll_regs->cm_div_m7_dpll);
+
+	/* Wait till the DPLL locks */
+	if (lock)
+		wait_for_lock(base);
+}
+
+const struct dpll_params *get_core_dpll_params(void)
+{
+	u32 sysclk_ind = get_sys_clk_index();
+
+	switch (omap_revision()) {
+	case OMAP4430_ES1_0:
+		return &core_dpll_params_es1_1524mhz[sysclk_ind];
+	case OMAP4430_ES2_0:
+	case OMAP4430_SILICON_ID_INVALID:
+		 /* safest */
+		return &core_dpll_params_es2_1600mhz_ddr200mhz[sysclk_ind];
+	default:
+		return &core_dpll_params_1600mhz[sysclk_ind];
+	}
+}
+
+u32 omap4_ddr_clk(void)
+{
+	u32 ddr_clk, sys_clk_khz;
+	const struct dpll_params *core_dpll_params;
+
+	sys_clk_khz = get_sys_clk_freq() / 1000;
+
+	core_dpll_params = get_core_dpll_params();
+
+	debug("sys_clk %d\n ", sys_clk_khz * 1000);
+
+	/* Find Core DPLL locked frequency first */
+	ddr_clk = sys_clk_khz * 2 * core_dpll_params->m /
+			(core_dpll_params->n + 1);
+	/*
+	 * DDR frequency is PHY_ROOT_CLK/2
+	 * PHY_ROOT_CLK = Fdpll/2/M2
+	 */
+	ddr_clk = ddr_clk / 4 / core_dpll_params->m2;
+
+	ddr_clk *= 1000;	/* convert to Hz */
+	debug("ddr_clk %d\n ", ddr_clk);
+
+	return ddr_clk;
+}
+
+/*
+ * Lock MPU dpll
+ *
+ * Resulting MPU frequencies:
+ * 4430 ES1.0	: 600 MHz
+ * 4430 ES2.x	: 792 MHz (OPP Turbo)
+ * 4460		: 920 MHz (OPP Turbo) - DCC disabled
+ */
+void configure_mpu_dpll(void)
+{
+	const struct dpll_params *params;
+	struct dpll_regs *mpu_dpll_regs;
+	u32 omap4_rev, sysclk_ind;
+
+	omap4_rev = omap_revision();
+	sysclk_ind = get_sys_clk_index();
+
+	if (omap4_rev == OMAP4430_ES1_0)
+		params = &mpu_dpll_params_1200mhz[sysclk_ind];
+	else if (omap4_rev < OMAP4460_ES1_0)
+		params = &mpu_dpll_params_1584mhz[sysclk_ind];
+	else
+		params = &mpu_dpll_params_1840mhz[sysclk_ind];
+
+	/* DCC and clock divider settings for 4460 */
+	if (omap4_rev >= OMAP4460_ES1_0) {
+		mpu_dpll_regs =
+			(struct dpll_regs *)&prcm->cm_clkmode_dpll_mpu;
+		bypass_dpll(&prcm->cm_clkmode_dpll_mpu);
+		clrbits_le32(&prcm->cm_mpu_mpu_clkctrl,
+			MPU_CLKCTRL_CLKSEL_EMIF_DIV_MODE_MASK);
+		setbits_le32(&prcm->cm_mpu_mpu_clkctrl,
+			MPU_CLKCTRL_CLKSEL_ABE_DIV_MODE_MASK);
+		clrbits_le32(&mpu_dpll_regs->cm_clksel_dpll,
+			CM_CLKSEL_DCC_EN_MASK);
+	}
+
+	do_setup_dpll(&prcm->cm_clkmode_dpll_mpu, params, DPLL_LOCK);
+	debug("MPU DPLL locked\n");
+}
+
+static void setup_dplls(void)
+{
+	u32 sysclk_ind, temp;
+	const struct dpll_params *params;
+	debug("setup_dplls\n");
+
+	sysclk_ind = get_sys_clk_index();
+
+	/* CORE dpll */
+	params = get_core_dpll_params();	/* default - safest */
+	/*
+	 * Do not lock the core DPLL now. Just set it up.
+	 * Core DPLL will be locked after setting up EMIF
+	 * using the FREQ_UPDATE method(freq_update_core())
+	 */
+	do_setup_dpll(&prcm->cm_clkmode_dpll_core, params, DPLL_NO_LOCK);
+	/* Set the ratios for CORE_CLK, L3_CLK, L4_CLK */
+	temp = (CLKSEL_CORE_X2_DIV_1 << CLKSEL_CORE_SHIFT) |
+	    (CLKSEL_L3_CORE_DIV_2 << CLKSEL_L3_SHIFT) |
+	    (CLKSEL_L4_L3_DIV_2 << CLKSEL_L4_SHIFT);
+	writel(temp, &prcm->cm_clksel_core);
+	debug("Core DPLL configured\n");
+
+	/* lock PER dpll */
+	do_setup_dpll(&prcm->cm_clkmode_dpll_per,
+			&per_dpll_params_1536mhz[sysclk_ind], DPLL_LOCK);
+	debug("PER DPLL locked\n");
+
+	/* MPU dpll */
+	configure_mpu_dpll();
+}
+
+static void setup_non_essential_dplls(void)
+{
+	u32 sys_clk_khz, abe_ref_clk;
+	u32 sysclk_ind, sd_div, num, den;
+	const struct dpll_params *params;
+
+	sysclk_ind = get_sys_clk_index();
+	sys_clk_khz = get_sys_clk_freq() / 1000;
+
+	/* IVA */
+	clrsetbits_le32(&prcm->cm_bypclk_dpll_iva,
+		CM_BYPCLK_DPLL_IVA_CLKSEL_MASK, DPLL_IVA_CLKSEL_CORE_X2_DIV_2);
+
+	do_setup_dpll(&prcm->cm_clkmode_dpll_iva,
+			&iva_dpll_params_1862mhz[sysclk_ind], DPLL_LOCK);
+
+	/*
+	 * USB:
+	 * USB dpll is J-type. Need to set DPLL_SD_DIV for jitter correction
+	 * DPLL_SD_DIV = CEILING ([DPLL_MULT/(DPLL_DIV+1)]* CLKINP / 250)
+	 *      - where CLKINP is sys_clk in MHz
+	 * Use CLKINP in KHz and adjust the denominator accordingly so
+	 * that we have enough accuracy and at the same time no overflow
+	 */
+	params = &usb_dpll_params_1920mhz[sysclk_ind];
+	num = params->m * sys_clk_khz;
+	den = (params->n + 1) * 250 * 1000;
+	num += den - 1;
+	sd_div = num / den;
+	clrsetbits_le32(&prcm->cm_clksel_dpll_usb,
+			CM_CLKSEL_DPLL_DPLL_SD_DIV_MASK,
+			sd_div << CM_CLKSEL_DPLL_DPLL_SD_DIV_SHIFT);
+
+	/* Now setup the dpll with the regular function */
+	do_setup_dpll(&prcm->cm_clkmode_dpll_usb, params, DPLL_LOCK);
+
+#ifdef CONFIG_SYS_OMAP4_ABE_SYSCK
+	params = &abe_dpll_params_sysclk_196608khz[sysclk_ind];
+	abe_ref_clk = CM_ABE_PLL_REF_CLKSEL_CLKSEL_SYSCLK;
+#else
+	params = &abe_dpll_params_32k_196608khz;
+	abe_ref_clk = CM_ABE_PLL_REF_CLKSEL_CLKSEL_32KCLK;
+	/*
+	 * We need to enable some additional options to achieve
+	 * 196.608MHz from 32768 Hz
+	 */
+	setbits_le32(&prcm->cm_clkmode_dpll_abe,
+			CM_CLKMODE_DPLL_DRIFTGUARD_EN_MASK|
+			CM_CLKMODE_DPLL_RELOCK_RAMP_EN_MASK|
+			CM_CLKMODE_DPLL_LPMODE_EN_MASK|
+			CM_CLKMODE_DPLL_REGM4XEN_MASK);
+	/* Spend 4 REFCLK cycles at each stage */
+	clrsetbits_le32(&prcm->cm_clkmode_dpll_abe,
+			CM_CLKMODE_DPLL_RAMP_RATE_MASK,
+			1 << CM_CLKMODE_DPLL_RAMP_RATE_SHIFT);
+#endif
+
+	/* Select the right reference clk */
+	clrsetbits_le32(&prcm->cm_abe_pll_ref_clksel,
+			CM_ABE_PLL_REF_CLKSEL_CLKSEL_MASK,
+			abe_ref_clk << CM_ABE_PLL_REF_CLKSEL_CLKSEL_SHIFT);
+	/* Lock the dpll */
+	do_setup_dpll(&prcm->cm_clkmode_dpll_abe, params, DPLL_LOCK);
+}
+
+static void do_scale_tps62361(u32 reg, u32 volt_mv)
+{
+	u32 temp, step;
+
+	step = volt_mv - TPS62361_BASE_VOLT_MV;
+	step /= 10;
+
+	/*
+	 * Select SET1 in TPS62361:
+	 * VSEL1 is grounded on board. So the following selects
+	 * VSEL1 = 0 and VSEL0 = 1
+	 */
+	gpio_direction_output(TPS62361_VSEL0_GPIO, 0);
+	gpio_set_value(TPS62361_VSEL0_GPIO, 1);
+
+	temp = TPS62361_I2C_SLAVE_ADDR |
+	    (reg << PRM_VC_VAL_BYPASS_REGADDR_SHIFT) |
+	    (step << PRM_VC_VAL_BYPASS_DATA_SHIFT) |
+	    PRM_VC_VAL_BYPASS_VALID_BIT;
+	debug("do_scale_tps62361: volt - %d step - 0x%x\n", volt_mv, step);
+
+	writel(temp, &prcm->prm_vc_val_bypass);
+	if (!wait_on_value(PRM_VC_VAL_BYPASS_VALID_BIT, 0,
+				&prcm->prm_vc_val_bypass, LDELAY)) {
+		puts("Scaling voltage failed for vdd_mpu from TPS\n");
+	}
+}
+
+static void do_scale_vcore(u32 vcore_reg, u32 volt_mv)
+{
+	u32 temp, offset_code;
+	u32 step = 12660; /* 12.66 mV represented in uV */
+	u32 offset = volt_mv;
+
+	/* convert to uV for better accuracy in the calculations */
+	offset *= 1000;
+
+	if (omap_revision() == OMAP4430_ES1_0)
+		offset -= PHOENIX_SMPS_BASE_VOLT_STD_MODE_UV;
+	else
+		offset -= PHOENIX_SMPS_BASE_VOLT_STD_MODE_WITH_OFFSET_UV;
+
+	offset_code = (offset + step - 1) / step;
+	/* The code starts at 1 not 0 */
+	offset_code++;
+
+	debug("do_scale_vcore: volt - %d offset_code - 0x%x\n", volt_mv,
+		offset_code);
+
+	temp = SMPS_I2C_SLAVE_ADDR |
+	    (vcore_reg << PRM_VC_VAL_BYPASS_REGADDR_SHIFT) |
+	    (offset_code << PRM_VC_VAL_BYPASS_DATA_SHIFT) |
+	    PRM_VC_VAL_BYPASS_VALID_BIT;
+	writel(temp, &prcm->prm_vc_val_bypass);
+	if (!wait_on_value(PRM_VC_VAL_BYPASS_VALID_BIT, 0,
+				&prcm->prm_vc_val_bypass, LDELAY)) {
+		printf("Scaling voltage failed for 0x%x\n", vcore_reg);
+	}
+}
+
+/*
+ * Setup the voltages for vdd_mpu, vdd_core, and vdd_iva
+ * We set the maximum voltages allowed here because Smart-Reflex is not
+ * enabled in bootloader. Voltage initialization in the kernel will set
+ * these to the nominal values after enabling Smart-Reflex
+ */
+static void scale_vcores(void)
+{
+	u32 volt, sys_clk_khz, cycles_hi, cycles_low, temp, omap4_rev;
+
+	sys_clk_khz = get_sys_clk_freq() / 1000;
+
+	/*
+	 * Setup the dedicated I2C controller for Voltage Control
+	 * I2C clk - high period 40% low period 60%
+	 */
+	cycles_hi = sys_clk_khz * 4 / PRM_VC_I2C_CHANNEL_FREQ_KHZ / 10;
+	cycles_low = sys_clk_khz * 6 / PRM_VC_I2C_CHANNEL_FREQ_KHZ / 10;
+	/* values to be set in register - less by 5 & 7 respectively */
+	cycles_hi -= 5;
+	cycles_low -= 7;
+	temp = (cycles_hi << PRM_VC_CFG_I2C_CLK_SCLH_SHIFT) |
+	       (cycles_low << PRM_VC_CFG_I2C_CLK_SCLL_SHIFT);
+	writel(temp, &prcm->prm_vc_cfg_i2c_clk);
+
+	/* Disable high speed mode and all advanced features */
+	writel(0x0, &prcm->prm_vc_cfg_i2c_mode);
+
+	omap4_rev = omap_revision();
+	/* TPS - supplies vdd_mpu on 4460 */
+	if (omap4_rev >= OMAP4460_ES1_0) {
+		volt = 1430;
+		do_scale_tps62361(TPS62361_REG_ADDR_SET1, volt);
+	}
+
+	/*
+	 * VCORE 1
+	 *
+	 * 4430 : supplies vdd_mpu
+	 * Setting a high voltage for Nitro mode as smart reflex is not enabled.
+	 * We use the maximum possible value in the AVS range because the next
+	 * higher voltage in the discrete range (code >= 0b111010) is way too
+	 * high
+	 *
+	 * 4460 : supplies vdd_core
+	 */
+	if (omap4_rev < OMAP4460_ES1_0) {
+		volt = 1417;
+		do_scale_vcore(SMPS_REG_ADDR_VCORE1, volt);
+	} else {
+		volt = 1200;
+		do_scale_vcore(SMPS_REG_ADDR_VCORE1, volt);
+	}
+
+	/* VCORE 2 - supplies vdd_iva */
+	volt = 1200;
+	do_scale_vcore(SMPS_REG_ADDR_VCORE2, volt);
+
+	/*
+	 * VCORE 3
+	 * 4430 : supplies vdd_core
+	 * 4460 : not connected
+	 */
+	if (omap4_rev < OMAP4460_ES1_0) {
+		volt = 1200;
+		do_scale_vcore(SMPS_REG_ADDR_VCORE3, volt);
+	}
+}
+
+static inline void enable_clock_domain(u32 *const clkctrl_reg, u32 enable_mode)
+{
+	clrsetbits_le32(clkctrl_reg, CD_CLKCTRL_CLKTRCTRL_MASK,
+			enable_mode << CD_CLKCTRL_CLKTRCTRL_SHIFT);
+	debug("Enable clock domain - %p\n", clkctrl_reg);
+}
+
+static inline void wait_for_clk_enable(u32 *clkctrl_addr)
+{
+	u32 clkctrl, idlest = MODULE_CLKCTRL_IDLEST_DISABLED;
+	u32 bound = LDELAY;
+
+	while ((idlest == MODULE_CLKCTRL_IDLEST_DISABLED) ||
+		(idlest == MODULE_CLKCTRL_IDLEST_TRANSITIONING)) {
+
+		clkctrl = readl(clkctrl_addr);
+		idlest = (clkctrl & MODULE_CLKCTRL_IDLEST_MASK) >>
+			 MODULE_CLKCTRL_IDLEST_SHIFT;
+		if (--bound == 0) {
+			printf("Clock enable failed for 0x%p idlest 0x%x\n",
+				clkctrl_addr, clkctrl);
+			return;
+		}
+	}
+}
+
+static inline void enable_clock_module(u32 *const clkctrl_addr, u32 enable_mode,
+				u32 wait_for_enable)
+{
+	clrsetbits_le32(clkctrl_addr, MODULE_CLKCTRL_MODULEMODE_MASK,
+			enable_mode << MODULE_CLKCTRL_MODULEMODE_SHIFT);
+	debug("Enable clock module - %p\n", clkctrl_addr);
+	if (wait_for_enable)
+		wait_for_clk_enable(clkctrl_addr);
+}
+
+/*
+ * Enable essential clock domains, modules and
+ * do some additional special settings needed
+ */
+static void enable_basic_clocks(void)
+{
+	u32 i, max = 100, wait_for_enable = 1;
+	u32 *const clk_domains_essential[] = {
+		&prcm->cm_l4per_clkstctrl,
+		&prcm->cm_l3init_clkstctrl,
+		&prcm->cm_memif_clkstctrl,
+		&prcm->cm_l4cfg_clkstctrl,
+		0
+	};
+
+	u32 *const clk_modules_hw_auto_essential[] = {
+		&prcm->cm_wkup_gpio1_clkctrl,
+		&prcm->cm_l4per_gpio2_clkctrl,
+		&prcm->cm_l4per_gpio3_clkctrl,
+		&prcm->cm_l4per_gpio4_clkctrl,
+		&prcm->cm_l4per_gpio5_clkctrl,
+		&prcm->cm_l4per_gpio6_clkctrl,
+		&prcm->cm_memif_emif_1_clkctrl,
+		&prcm->cm_memif_emif_2_clkctrl,
+		&prcm->cm_l3init_hsusbotg_clkctrl,
+		&prcm->cm_l3init_usbphy_clkctrl,
+		&prcm->cm_l4cfg_l4_cfg_clkctrl,
+		0
+	};
+
+	u32 *const clk_modules_explicit_en_essential[] = {
+		&prcm->cm_l4per_gptimer2_clkctrl,
+		&prcm->cm_l3init_hsmmc1_clkctrl,
+		&prcm->cm_l3init_hsmmc2_clkctrl,
+		&prcm->cm_l4per_mcspi1_clkctrl,
+		&prcm->cm_wkup_gptimer1_clkctrl,
+		&prcm->cm_l4per_i2c1_clkctrl,
+		&prcm->cm_l4per_i2c2_clkctrl,
+		&prcm->cm_l4per_i2c3_clkctrl,
+		&prcm->cm_l4per_i2c4_clkctrl,
+		&prcm->cm_wkup_wdtimer2_clkctrl,
+		&prcm->cm_l4per_uart3_clkctrl,
+		0
+	};
+
+	/* Enable optional additional functional clock for GPIO4 */
+	setbits_le32(&prcm->cm_l4per_gpio4_clkctrl,
+			GPIO4_CLKCTRL_OPTFCLKEN_MASK);
+
+	/* Enable 96 MHz clock for MMC1 & MMC2 */
+	setbits_le32(&prcm->cm_l3init_hsmmc1_clkctrl,
+			HSMMC_CLKCTRL_CLKSEL_MASK);
+	setbits_le32(&prcm->cm_l3init_hsmmc2_clkctrl,
+			HSMMC_CLKCTRL_CLKSEL_MASK);
+
+	/* Select 32KHz clock as the source of GPTIMER1 */
+	setbits_le32(&prcm->cm_wkup_gptimer1_clkctrl,
+			GPTIMER1_CLKCTRL_CLKSEL_MASK);
+
+	/* Enable optional 48M functional clock for USB  PHY */
+	setbits_le32(&prcm->cm_l3init_usbphy_clkctrl,
+			USBPHY_CLKCTRL_OPTFCLKEN_PHY_48M_MASK);
+
+	/* Put the clock domains in SW_WKUP mode */
+	for (i = 0; (i < max) && clk_domains_essential[i]; i++) {
+		enable_clock_domain(clk_domains_essential[i],
+				    CD_CLKCTRL_CLKTRCTRL_SW_WKUP);
+	}
+
+	/* Clock modules that need to be put in HW_AUTO */
+	for (i = 0; (i < max) && clk_modules_hw_auto_essential[i]; i++) {
+		enable_clock_module(clk_modules_hw_auto_essential[i],
+				    MODULE_CLKCTRL_MODULEMODE_HW_AUTO,
+				    wait_for_enable);
+	};
+
+	/* Clock modules that need to be put in SW_EXPLICIT_EN mode */
+	for (i = 0; (i < max) && clk_modules_explicit_en_essential[i]; i++) {
+		enable_clock_module(clk_modules_explicit_en_essential[i],
+				    MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN,
+				    wait_for_enable);
+	};
+
+	/* Put the clock domains in HW_AUTO mode now */
+	for (i = 0; (i < max) && clk_domains_essential[i]; i++) {
+		enable_clock_domain(clk_domains_essential[i],
+				    CD_CLKCTRL_CLKTRCTRL_HW_AUTO);
+	}
+}
+
+/*
+ * Enable non-essential clock domains, modules and
+ * do some additional special settings needed
+ */
+static void enable_non_essential_clocks(void)
+{
+	u32 i, max = 100, wait_for_enable = 0;
+	u32 *const clk_domains_non_essential[] = {
+		&prcm->cm_mpu_m3_clkstctrl,
+		&prcm->cm_ivahd_clkstctrl,
+		&prcm->cm_dsp_clkstctrl,
+		&prcm->cm_dss_clkstctrl,
+		&prcm->cm_sgx_clkstctrl,
+		&prcm->cm1_abe_clkstctrl,
+		&prcm->cm_c2c_clkstctrl,
+		&prcm->cm_cam_clkstctrl,
+		&prcm->cm_dss_clkstctrl,
+		&prcm->cm_sdma_clkstctrl,
+		0
+	};
+
+	u32 *const clk_modules_hw_auto_non_essential[] = {
+		&prcm->cm_mpu_m3_mpu_m3_clkctrl,
+		&prcm->cm_ivahd_ivahd_clkctrl,
+		&prcm->cm_ivahd_sl2_clkctrl,
+		&prcm->cm_dsp_dsp_clkctrl,
+		&prcm->cm_l3_2_gpmc_clkctrl,
+		&prcm->cm_l3instr_l3_3_clkctrl,
+		&prcm->cm_l3instr_l3_instr_clkctrl,
+		&prcm->cm_l3instr_intrconn_wp1_clkctrl,
+		&prcm->cm_l3init_hsi_clkctrl,
+		&prcm->cm_l3init_hsusbtll_clkctrl,
+		0
+	};
+
+	u32 *const clk_modules_explicit_en_non_essential[] = {
+		&prcm->cm1_abe_aess_clkctrl,
+		&prcm->cm1_abe_pdm_clkctrl,
+		&prcm->cm1_abe_dmic_clkctrl,
+		&prcm->cm1_abe_mcasp_clkctrl,
+		&prcm->cm1_abe_mcbsp1_clkctrl,
+		&prcm->cm1_abe_mcbsp2_clkctrl,
+		&prcm->cm1_abe_mcbsp3_clkctrl,
+		&prcm->cm1_abe_slimbus_clkctrl,
+		&prcm->cm1_abe_timer5_clkctrl,
+		&prcm->cm1_abe_timer6_clkctrl,
+		&prcm->cm1_abe_timer7_clkctrl,
+		&prcm->cm1_abe_timer8_clkctrl,
+		&prcm->cm1_abe_wdt3_clkctrl,
+		&prcm->cm_l4per_gptimer9_clkctrl,
+		&prcm->cm_l4per_gptimer10_clkctrl,
+		&prcm->cm_l4per_gptimer11_clkctrl,
+		&prcm->cm_l4per_gptimer3_clkctrl,
+		&prcm->cm_l4per_gptimer4_clkctrl,
+		&prcm->cm_l4per_hdq1w_clkctrl,
+		&prcm->cm_l4per_mcbsp4_clkctrl,
+		&prcm->cm_l4per_mcspi2_clkctrl,
+		&prcm->cm_l4per_mcspi3_clkctrl,
+		&prcm->cm_l4per_mcspi4_clkctrl,
+		&prcm->cm_l4per_mmcsd3_clkctrl,
+		&prcm->cm_l4per_mmcsd4_clkctrl,
+		&prcm->cm_l4per_mmcsd5_clkctrl,
+		&prcm->cm_l4per_uart1_clkctrl,
+		&prcm->cm_l4per_uart2_clkctrl,
+		&prcm->cm_l4per_uart4_clkctrl,
+		&prcm->cm_wkup_keyboard_clkctrl,
+		&prcm->cm_wkup_wdtimer2_clkctrl,
+		&prcm->cm_cam_iss_clkctrl,
+		&prcm->cm_cam_fdif_clkctrl,
+		&prcm->cm_dss_dss_clkctrl,
+		&prcm->cm_sgx_sgx_clkctrl,
+		&prcm->cm_l3init_hsusbhost_clkctrl,
+		&prcm->cm_l3init_fsusb_clkctrl,
+		0
+	};
+
+	/* Enable optional functional clock for ISS */
+	setbits_le32(&prcm->cm_cam_iss_clkctrl, ISS_CLKCTRL_OPTFCLKEN_MASK);
+
+	/* Enable all optional functional clocks of DSS */
+	setbits_le32(&prcm->cm_dss_dss_clkctrl, DSS_CLKCTRL_OPTFCLKEN_MASK);
+
+
+	/* Put the clock domains in SW_WKUP mode */
+	for (i = 0; (i < max) && clk_domains_non_essential[i]; i++) {
+		enable_clock_domain(clk_domains_non_essential[i],
+				    CD_CLKCTRL_CLKTRCTRL_SW_WKUP);
+	}
+
+	/* Clock modules that need to be put in HW_AUTO */
+	for (i = 0; (i < max) && clk_modules_hw_auto_non_essential[i]; i++) {
+		enable_clock_module(clk_modules_hw_auto_non_essential[i],
+				    MODULE_CLKCTRL_MODULEMODE_HW_AUTO,
+				    wait_for_enable);
+	};
+
+	/* Clock modules that need to be put in SW_EXPLICIT_EN mode */
+	for (i = 0; (i < max) && clk_modules_explicit_en_non_essential[i];
+	     i++) {
+		enable_clock_module(clk_modules_explicit_en_non_essential[i],
+				    MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN,
+				    wait_for_enable);
+	};
+
+	/* Put the clock domains in HW_AUTO mode now */
+	for (i = 0; (i < max) && clk_domains_non_essential[i]; i++) {
+		enable_clock_domain(clk_domains_non_essential[i],
+				    CD_CLKCTRL_CLKTRCTRL_HW_AUTO);
+	}
+
+	/* Put camera module in no sleep mode */
+	clrsetbits_le32(&prcm->cm_cam_clkstctrl, MODULE_CLKCTRL_MODULEMODE_MASK,
+			CD_CLKCTRL_CLKTRCTRL_NO_SLEEP <<
+			MODULE_CLKCTRL_MODULEMODE_SHIFT);
+}
+
+
+void freq_update_core(void)
+{
+	u32 freq_config1 = 0;
+	const struct dpll_params *core_dpll_params;
+
+	core_dpll_params = get_core_dpll_params();
+	/* Put EMIF clock domain in sw wakeup mode */
+	enable_clock_domain(&prcm->cm_memif_clkstctrl,
+				CD_CLKCTRL_CLKTRCTRL_SW_WKUP);
+	wait_for_clk_enable(&prcm->cm_memif_emif_1_clkctrl);
+	wait_for_clk_enable(&prcm->cm_memif_emif_2_clkctrl);
+
+	freq_config1 = SHADOW_FREQ_CONFIG1_FREQ_UPDATE_MASK |
+	    SHADOW_FREQ_CONFIG1_DLL_RESET_MASK;
+
+	freq_config1 |= (DPLL_EN_LOCK << SHADOW_FREQ_CONFIG1_DPLL_EN_SHIFT) &
+				SHADOW_FREQ_CONFIG1_DPLL_EN_MASK;
+
+	freq_config1 |= (core_dpll_params->m2 <<
+			SHADOW_FREQ_CONFIG1_M2_DIV_SHIFT) &
+			SHADOW_FREQ_CONFIG1_M2_DIV_MASK;
+
+	writel(freq_config1, &prcm->cm_shadow_freq_config1);
+	if (!wait_on_value(SHADOW_FREQ_CONFIG1_FREQ_UPDATE_MASK, 0,
+				&prcm->cm_shadow_freq_config1, LDELAY)) {
+		puts("FREQ UPDATE procedure failed!!");
+		hang();
+	}
+
+	/* Put EMIF clock domain back in hw auto mode */
+	enable_clock_domain(&prcm->cm_memif_clkstctrl,
+				CD_CLKCTRL_CLKTRCTRL_HW_AUTO);
+	wait_for_clk_enable(&prcm->cm_memif_emif_1_clkctrl);
+	wait_for_clk_enable(&prcm->cm_memif_emif_2_clkctrl);
+}
+
+void bypass_dpll(u32 *const base)
+{
+	do_bypass_dpll(base);
+	wait_for_bypass(base);
+}
+
+void lock_dpll(u32 *const base)
+{
+	do_lock_dpll(base);
+	wait_for_lock(base);
+}
+
+void setup_clocks_for_console(void)
+{
+	/* Do not add any spl_debug prints in this function */
+	clrsetbits_le32(&prcm->cm_l4per_clkstctrl, CD_CLKCTRL_CLKTRCTRL_MASK,
+			CD_CLKCTRL_CLKTRCTRL_SW_WKUP <<
+			CD_CLKCTRL_CLKTRCTRL_SHIFT);
+
+	/* Enable all UARTs - console will be on one of them */
+	clrsetbits_le32(&prcm->cm_l4per_uart1_clkctrl,
+			MODULE_CLKCTRL_MODULEMODE_MASK,
+			MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN <<
+			MODULE_CLKCTRL_MODULEMODE_SHIFT);
+
+	clrsetbits_le32(&prcm->cm_l4per_uart2_clkctrl,
+			MODULE_CLKCTRL_MODULEMODE_MASK,
+			MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN <<
+			MODULE_CLKCTRL_MODULEMODE_SHIFT);
+
+	clrsetbits_le32(&prcm->cm_l4per_uart3_clkctrl,
+			MODULE_CLKCTRL_MODULEMODE_MASK,
+			MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN <<
+			MODULE_CLKCTRL_MODULEMODE_SHIFT);
+
+	clrsetbits_le32(&prcm->cm_l4per_uart3_clkctrl,
+			MODULE_CLKCTRL_MODULEMODE_MASK,
+			MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN <<
+			MODULE_CLKCTRL_MODULEMODE_SHIFT);
+
+	clrsetbits_le32(&prcm->cm_l4per_clkstctrl, CD_CLKCTRL_CLKTRCTRL_MASK,
+			CD_CLKCTRL_CLKTRCTRL_HW_AUTO <<
+			CD_CLKCTRL_CLKTRCTRL_SHIFT);
+}
+
+void prcm_init(void)
+{
+	switch (omap4_hw_init_context()) {
+	case OMAP_INIT_CONTEXT_SPL:
+	case OMAP_INIT_CONTEXT_UBOOT_FROM_NOR:
+	case OMAP_INIT_CONTEXT_UBOOT_AFTER_CH:
+		enable_basic_clocks();
+		scale_vcores();
+		setup_dplls();
+		setup_non_essential_dplls();
+		enable_non_essential_clocks();
+		break;
+	default:
+		break;
+	}
+}
diff --git a/arch/arm/cpu/armv7/omap-common/emif-common.c b/arch/arm/cpu/armv7/omap-common/emif-common.c
new file mode 100644
index 0000000..94c8bed
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap-common/emif-common.c
@@ -0,0 +1,1254 @@
+/*
+ * EMIF programming
+ *
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ *
+ * Aneesh V <aneesh@ti.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/arch/emif.h>
+#include <asm/arch/clocks.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/omap_common.h>
+#include <asm/utils.h>
+
+static inline u32 emif_num(u32 base)
+{
+	if (base == OMAP44XX_EMIF1)
+		return 1;
+	else if (base == OMAP44XX_EMIF2)
+		return 2;
+	else
+		return 0;
+}
+
+static inline u32 get_mr(u32 base, u32 cs, u32 mr_addr)
+{
+	u32 mr;
+	struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
+
+	mr_addr |= cs << OMAP44XX_REG_CS_SHIFT;
+	writel(mr_addr, &emif->emif_lpddr2_mode_reg_cfg);
+	if (omap_revision() == OMAP4430_ES2_0)
+		mr = readl(&emif->emif_lpddr2_mode_reg_data_es2);
+	else
+		mr = readl(&emif->emif_lpddr2_mode_reg_data);
+	debug("get_mr: EMIF%d cs %d mr %08x val 0x%x\n", emif_num(base),
+	      cs, mr_addr, mr);
+	return mr;
+}
+
+static inline void set_mr(u32 base, u32 cs, u32 mr_addr, u32 mr_val)
+{
+	struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
+
+	mr_addr |= cs << OMAP44XX_REG_CS_SHIFT;
+	writel(mr_addr, &emif->emif_lpddr2_mode_reg_cfg);
+	writel(mr_val, &emif->emif_lpddr2_mode_reg_data);
+}
+
+void emif_reset_phy(u32 base)
+{
+	struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
+	u32 iodft;
+
+	iodft = readl(&emif->emif_iodft_tlgc);
+	iodft |= OMAP44XX_REG_RESET_PHY_MASK;
+	writel(iodft, &emif->emif_iodft_tlgc);
+}
+
+static void do_lpddr2_init(u32 base, u32 cs)
+{
+	u32 mr_addr;
+
+	/* Wait till device auto initialization is complete */
+	while (get_mr(base, cs, LPDDR2_MR0) & LPDDR2_MR0_DAI_MASK)
+		;
+	set_mr(base, cs, LPDDR2_MR10, MR10_ZQ_ZQINIT);
+	/*
+	 * tZQINIT = 1 us
+	 * Enough loops assuming a maximum of 2GHz
+	 */
+	sdelay(2000);
+	set_mr(base, cs, LPDDR2_MR1, MR1_BL_8_BT_SEQ_WRAP_EN_NWR_3);
+	set_mr(base, cs, LPDDR2_MR16, MR16_REF_FULL_ARRAY);
+	/*
+	 * Enable refresh along with writing MR2
+	 * Encoding of RL in MR2 is (RL - 2)
+	 */
+	mr_addr = LPDDR2_MR2 | OMAP44XX_REG_REFRESH_EN_MASK;
+	set_mr(base, cs, mr_addr, RL_FINAL - 2);
+}
+
+static void lpddr2_init(u32 base, const struct emif_regs *regs)
+{
+	struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
+
+	/* Not NVM */
+	clrbits_le32(&emif->emif_lpddr2_nvm_config, OMAP44XX_REG_CS1NVMEN_MASK);
+
+	/*
+	 * Keep REG_INITREF_DIS = 1 to prevent re-initialization of SDRAM
+	 * when EMIF_SDRAM_CONFIG register is written
+	 */
+	setbits_le32(&emif->emif_sdram_ref_ctrl, OMAP44XX_REG_INITREF_DIS_MASK);
+
+	/*
+	 * Set the SDRAM_CONFIG and PHY_CTRL for the
+	 * un-locked frequency & default RL
+	 */
+	writel(regs->sdram_config_init, &emif->emif_sdram_config);
+	writel(regs->emif_ddr_phy_ctlr_1_init, &emif->emif_ddr_phy_ctrl_1);
+
+	do_lpddr2_init(base, CS0);
+	if (regs->sdram_config & OMAP44XX_REG_EBANK_MASK)
+		do_lpddr2_init(base, CS1);
+
+	writel(regs->sdram_config, &emif->emif_sdram_config);
+	writel(regs->emif_ddr_phy_ctlr_1, &emif->emif_ddr_phy_ctrl_1);
+
+	/* Enable refresh now */
+	clrbits_le32(&emif->emif_sdram_ref_ctrl, OMAP44XX_REG_INITREF_DIS_MASK);
+
+}
+
+static void emif_update_timings(u32 base, const struct emif_regs *regs)
+{
+	struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
+
+	writel(regs->ref_ctrl, &emif->emif_sdram_ref_ctrl_shdw);
+	writel(regs->sdram_tim1, &emif->emif_sdram_tim_1_shdw);
+	writel(regs->sdram_tim2, &emif->emif_sdram_tim_2_shdw);
+	writel(regs->sdram_tim3, &emif->emif_sdram_tim_3_shdw);
+	if (omap_revision() == OMAP4430_ES1_0) {
+		/* ES1 bug EMIF should be in force idle during freq_update */
+		writel(0, &emif->emif_pwr_mgmt_ctrl);
+	} else {
+		writel(EMIF_PWR_MGMT_CTRL, &emif->emif_pwr_mgmt_ctrl);
+		writel(EMIF_PWR_MGMT_CTRL_SHDW, &emif->emif_pwr_mgmt_ctrl_shdw);
+	}
+	writel(regs->read_idle_ctrl, &emif->emif_read_idlectrl_shdw);
+	writel(regs->zq_config, &emif->emif_zq_config);
+	writel(regs->temp_alert_config, &emif->emif_temp_alert_config);
+	writel(regs->emif_ddr_phy_ctlr_1, &emif->emif_ddr_phy_ctrl_1_shdw);
+
+	if (omap_revision() >= OMAP4460_ES1_0) {
+		writel(EMIF_L3_CONFIG_VAL_SYS_10_MPU_3_LL_0,
+			&emif->emif_l3_config);
+	} else {
+		writel(EMIF_L3_CONFIG_VAL_SYS_10_LL_0,
+			&emif->emif_l3_config);
+	}
+}
+
+#ifndef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS
+#define print_timing_reg(reg) debug(#reg" - 0x%08x\n", (reg))
+
+static u32 *const T_num = (u32 *)OMAP4_SRAM_SCRATCH_EMIF_T_NUM;
+static u32 *const T_den = (u32 *)OMAP4_SRAM_SCRATCH_EMIF_T_DEN;
+static u32 *const emif_sizes = (u32 *)OMAP4_SRAM_SCRATCH_EMIF_SIZE;
+
+/*
+ * Organization and refresh requirements for LPDDR2 devices of different
+ * types and densities. Derived from JESD209-2 section 2.4
+ */
+const struct lpddr2_addressing addressing_table[] = {
+	/* Banks tREFIx10     rowx32,rowx16      colx32,colx16	density */
+	{BANKS4, T_REFI_15_6, {ROW_12, ROW_12}, {COL_7, COL_8} },/*64M */
+	{BANKS4, T_REFI_15_6, {ROW_12, ROW_12}, {COL_8, COL_9} },/*128M */
+	{BANKS4, T_REFI_7_8, {ROW_13, ROW_13}, {COL_8, COL_9} },/*256M */
+	{BANKS4, T_REFI_7_8, {ROW_13, ROW_13}, {COL_9, COL_10} },/*512M */
+	{BANKS8, T_REFI_7_8, {ROW_13, ROW_13}, {COL_9, COL_10} },/*1GS4 */
+	{BANKS8, T_REFI_3_9, {ROW_14, ROW_14}, {COL_9, COL_10} },/*2GS4 */
+	{BANKS8, T_REFI_3_9, {ROW_14, ROW_14}, {COL_10, COL_11} },/*4G */
+	{BANKS8, T_REFI_3_9, {ROW_15, ROW_15}, {COL_10, COL_11} },/*8G */
+	{BANKS4, T_REFI_7_8, {ROW_14, ROW_14}, {COL_9, COL_10} },/*1GS2 */
+	{BANKS4, T_REFI_3_9, {ROW_15, ROW_15}, {COL_9, COL_10} },/*2GS2 */
+};
+
+static const u32 lpddr2_density_2_size_in_mbytes[] = {
+	8,			/* 64Mb */
+	16,			/* 128Mb */
+	32,			/* 256Mb */
+	64,			/* 512Mb */
+	128,			/* 1Gb   */
+	256,			/* 2Gb   */
+	512,			/* 4Gb   */
+	1024,			/* 8Gb   */
+	2048,			/* 16Gb  */
+	4096			/* 32Gb  */
+};
+
+/*
+ * Calculate the period of DDR clock from frequency value and set the
+ * denominator and numerator in global variables for easy access later
+ */
+static void set_ddr_clk_period(u32 freq)
+{
+	/*
+	 * period = 1/freq
+	 * period_in_ns = 10^9/freq
+	 */
+	*T_num = 1000000000;
+	*T_den = freq;
+	cancel_out(T_num, T_den, 200);
+
+}
+
+/*
+ * Convert time in nano seconds to number of cycles of DDR clock
+ */
+static inline u32 ns_2_cycles(u32 ns)
+{
+	return ((ns * (*T_den)) + (*T_num) - 1) / (*T_num);
+}
+
+/*
+ * ns_2_cycles with the difference that the time passed is 2 times the actual
+ * value(to avoid fractions). The cycles returned is for the original value of
+ * the timing parameter
+ */
+static inline u32 ns_x2_2_cycles(u32 ns)
+{
+	return ((ns * (*T_den)) + (*T_num) * 2 - 1) / ((*T_num) * 2);
+}
+
+/*
+ * Find addressing table index based on the device's type(S2 or S4) and
+ * density
+ */
+s8 addressing_table_index(u8 type, u8 density, u8 width)
+{
+	u8 index;
+	if ((density > LPDDR2_DENSITY_8Gb) || (width == LPDDR2_IO_WIDTH_8))
+		return -1;
+
+	/*
+	 * Look at the way ADDR_TABLE_INDEX* values have been defined
+	 * in emif.h compared to LPDDR2_DENSITY_* values
+	 * The table is layed out in the increasing order of density
+	 * (ignoring type). The exceptions 1GS2 and 2GS2 have been placed
+	 * at the end
+	 */
+	if ((type == LPDDR2_TYPE_S2) && (density == LPDDR2_DENSITY_1Gb))
+		index = ADDR_TABLE_INDEX1GS2;
+	else if ((type == LPDDR2_TYPE_S2) && (density == LPDDR2_DENSITY_2Gb))
+		index = ADDR_TABLE_INDEX2GS2;
+	else
+		index = density;
+
+	debug("emif: addressing table index %d\n", index);
+
+	return index;
+}
+
+/*
+ * Find the the right timing table from the array of timing
+ * tables of the device using DDR clock frequency
+ */
+static const struct lpddr2_ac_timings *get_timings_table(const struct
+			lpddr2_ac_timings const *const *device_timings,
+			u32 freq)
+{
+	u32 i, temp, freq_nearest;
+	const struct lpddr2_ac_timings *timings = 0;
+
+	emif_assert(freq <= MAX_LPDDR2_FREQ);
+	emif_assert(device_timings);
+
+	/*
+	 * Start with the maximum allowed frequency - that is always safe
+	 */
+	freq_nearest = MAX_LPDDR2_FREQ;
+	/*
+	 * Find the timings table that has the max frequency value:
+	 *   i.  Above or equal to the DDR frequency - safe
+	 *   ii. The lowest that satisfies condition (i) - optimal
+	 */
+	for (i = 0; (i < MAX_NUM_SPEEDBINS) && device_timings[i]; i++) {
+		temp = device_timings[i]->max_freq;
+		if ((temp >= freq) && (temp <= freq_nearest)) {
+			freq_nearest = temp;
+			timings = device_timings[i];
+		}
+	}
+	debug("emif: timings table: %d\n", freq_nearest);
+	return timings;
+}
+
+/*
+ * Finds the value of emif_sdram_config_reg
+ * All parameters are programmed based on the device on CS0.
+ * If there is a device on CS1, it will be same as that on CS0 or
+ * it will be NVM. We don't support NVM yet.
+ * If cs1_device pointer is NULL it is assumed that there is no device
+ * on CS1
+ */
+static u32 get_sdram_config_reg(const struct lpddr2_device_details *cs0_device,
+				const struct lpddr2_device_details *cs1_device,
+				const struct lpddr2_addressing *addressing,
+				u8 RL)
+{
+	u32 config_reg = 0;
+
+	config_reg |=  (cs0_device->type + 4) << OMAP44XX_REG_SDRAM_TYPE_SHIFT;
+	config_reg |=  EMIF_INTERLEAVING_POLICY_MAX_INTERLEAVING <<
+			OMAP44XX_REG_IBANK_POS_SHIFT;
+
+	config_reg |= cs0_device->io_width << OMAP44XX_REG_NARROW_MODE_SHIFT;
+
+	config_reg |= RL << OMAP44XX_REG_CL_SHIFT;
+
+	config_reg |= addressing->row_sz[cs0_device->io_width] <<
+			OMAP44XX_REG_ROWSIZE_SHIFT;
+
+	config_reg |= addressing->num_banks << OMAP44XX_REG_IBANK_SHIFT;
+
+	config_reg |= (cs1_device ? EBANK_CS1_EN : EBANK_CS1_DIS) <<
+			OMAP44XX_REG_EBANK_SHIFT;
+
+	config_reg |= addressing->col_sz[cs0_device->io_width] <<
+			OMAP44XX_REG_PAGESIZE_SHIFT;
+
+	return config_reg;
+}
+
+static u32 get_sdram_ref_ctrl(u32 freq,
+			      const struct lpddr2_addressing *addressing)
+{
+	u32 ref_ctrl = 0, val = 0, freq_khz;
+	freq_khz = freq / 1000;
+	/*
+	 * refresh rate to be set is 'tREFI * freq in MHz
+	 * division by 10000 to account for khz and x10 in t_REFI_us_x10
+	 */
+	val = addressing->t_REFI_us_x10 * freq_khz / 10000;
+	ref_ctrl |= val << OMAP44XX_REG_REFRESH_RATE_SHIFT;
+
+	return ref_ctrl;
+}
+
+static u32 get_sdram_tim_1_reg(const struct lpddr2_ac_timings *timings,
+			       const struct lpddr2_min_tck *min_tck,
+			       const struct lpddr2_addressing *addressing)
+{
+	u32 tim1 = 0, val = 0;
+	val = max(min_tck->tWTR, ns_x2_2_cycles(timings->tWTRx2)) - 1;
+	tim1 |= val << OMAP44XX_REG_T_WTR_SHIFT;
+
+	if (addressing->num_banks == BANKS8)
+		val = (timings->tFAW * (*T_den) + 4 * (*T_num) - 1) /
+							(4 * (*T_num)) - 1;
+	else
+		val = max(min_tck->tRRD, ns_2_cycles(timings->tRRD)) - 1;
+
+	tim1 |= val << OMAP44XX_REG_T_RRD_SHIFT;
+
+	val = ns_2_cycles(timings->tRASmin + timings->tRPab) - 1;
+	tim1 |= val << OMAP44XX_REG_T_RC_SHIFT;
+
+	val = max(min_tck->tRAS_MIN, ns_2_cycles(timings->tRASmin)) - 1;
+	tim1 |= val << OMAP44XX_REG_T_RAS_SHIFT;
+
+	val = max(min_tck->tWR, ns_2_cycles(timings->tWR)) - 1;
+	tim1 |= val << OMAP44XX_REG_T_WR_SHIFT;
+
+	val = max(min_tck->tRCD, ns_2_cycles(timings->tRCD)) - 1;
+	tim1 |= val << OMAP44XX_REG_T_RCD_SHIFT;
+
+	val = max(min_tck->tRP_AB, ns_2_cycles(timings->tRPab)) - 1;
+	tim1 |= val << OMAP44XX_REG_T_RP_SHIFT;
+
+	return tim1;
+}
+
+static u32 get_sdram_tim_2_reg(const struct lpddr2_ac_timings *timings,
+			       const struct lpddr2_min_tck *min_tck)
+{
+	u32 tim2 = 0, val = 0;
+	val = max(min_tck->tCKE, timings->tCKE) - 1;
+	tim2 |= val << OMAP44XX_REG_T_CKE_SHIFT;
+
+	val = max(min_tck->tRTP, ns_x2_2_cycles(timings->tRTPx2)) - 1;
+	tim2 |= val << OMAP44XX_REG_T_RTP_SHIFT;
+
+	/*
+	 * tXSRD = tRFCab + 10 ns. XSRD and XSNR should have the
+	 * same value
+	 */
+	val = ns_2_cycles(timings->tXSR) - 1;
+	tim2 |= val << OMAP44XX_REG_T_XSRD_SHIFT;
+	tim2 |= val << OMAP44XX_REG_T_XSNR_SHIFT;
+
+	val = max(min_tck->tXP, ns_x2_2_cycles(timings->tXPx2)) - 1;
+	tim2 |= val << OMAP44XX_REG_T_XP_SHIFT;
+
+	return tim2;
+}
+
+static u32 get_sdram_tim_3_reg(const struct lpddr2_ac_timings *timings,
+			       const struct lpddr2_min_tck *min_tck,
+			       const struct lpddr2_addressing *addressing)
+{
+	u32 tim3 = 0, val = 0;
+	val = min(timings->tRASmax * 10 / addressing->t_REFI_us_x10 - 1, 0xF);
+	tim3 |= val << OMAP44XX_REG_T_RAS_MAX_SHIFT;
+
+	val = ns_2_cycles(timings->tRFCab) - 1;
+	tim3 |= val << OMAP44XX_REG_T_RFC_SHIFT;
+
+	val = ns_x2_2_cycles(timings->tDQSCKMAXx2) - 1;
+	tim3 |= val << OMAP44XX_REG_T_TDQSCKMAX_SHIFT;
+
+	val = ns_2_cycles(timings->tZQCS) - 1;
+	tim3 |= val << OMAP44XX_REG_ZQ_ZQCS_SHIFT;
+
+	val = max(min_tck->tCKESR, ns_2_cycles(timings->tCKESR)) - 1;
+	tim3 |= val << OMAP44XX_REG_T_CKESR_SHIFT;
+
+	return tim3;
+}
+
+static u32 get_zq_config_reg(const struct lpddr2_device_details *cs1_device,
+			     const struct lpddr2_addressing *addressing,
+			     u8 volt_ramp)
+{
+	u32 zq = 0, val = 0;
+	if (volt_ramp)
+		val =
+		    EMIF_ZQCS_INTERVAL_DVFS_IN_US * 10 /
+		    addressing->t_REFI_us_x10;
+	else
+		val =
+		    EMIF_ZQCS_INTERVAL_NORMAL_IN_US * 10 /
+		    addressing->t_REFI_us_x10;
+	zq |= val << OMAP44XX_REG_ZQ_REFINTERVAL_SHIFT;
+
+	zq |= (REG_ZQ_ZQCL_MULT - 1) << OMAP44XX_REG_ZQ_ZQCL_MULT_SHIFT;
+
+	zq |= (REG_ZQ_ZQINIT_MULT - 1) << OMAP44XX_REG_ZQ_ZQINIT_MULT_SHIFT;
+
+	zq |= REG_ZQ_SFEXITEN_ENABLE << OMAP44XX_REG_ZQ_SFEXITEN_SHIFT;
+
+	/*
+	 * Assuming that two chipselects have a single calibration resistor
+	 * If there are indeed two calibration resistors, then this flag should
+	 * be enabled to take advantage of dual calibration feature.
+	 * This data should ideally come from board files. But considering
+	 * that none of the boards today have calibration resistors per CS,
+	 * it would be an unnecessary overhead.
+	 */
+	zq |= REG_ZQ_DUALCALEN_DISABLE << OMAP44XX_REG_ZQ_DUALCALEN_SHIFT;
+
+	zq |= REG_ZQ_CS0EN_ENABLE << OMAP44XX_REG_ZQ_CS0EN_SHIFT;
+
+	zq |= (cs1_device ? 1 : 0) << OMAP44XX_REG_ZQ_CS1EN_SHIFT;
+
+	return zq;
+}
+
+static u32 get_temp_alert_config(const struct lpddr2_device_details *cs1_device,
+				 const struct lpddr2_addressing *addressing,
+				 u8 is_derated)
+{
+	u32 alert = 0, interval;
+	interval =
+	    TEMP_ALERT_POLL_INTERVAL_MS * 10000 / addressing->t_REFI_us_x10;
+	if (is_derated)
+		interval *= 4;
+	alert |= interval << OMAP44XX_REG_TA_REFINTERVAL_SHIFT;
+
+	alert |= TEMP_ALERT_CONFIG_DEVCT_1 << OMAP44XX_REG_TA_DEVCNT_SHIFT;
+
+	alert |= TEMP_ALERT_CONFIG_DEVWDT_32 << OMAP44XX_REG_TA_DEVWDT_SHIFT;
+
+	alert |= 1 << OMAP44XX_REG_TA_SFEXITEN_SHIFT;
+
+	alert |= 1 << OMAP44XX_REG_TA_CS0EN_SHIFT;
+
+	alert |= (cs1_device ? 1 : 0) << OMAP44XX_REG_TA_CS1EN_SHIFT;
+
+	return alert;
+}
+
+static u32 get_read_idle_ctrl_reg(u8 volt_ramp)
+{
+	u32 idle = 0, val = 0;
+	if (volt_ramp)
+		val = ns_2_cycles(READ_IDLE_INTERVAL_DVFS) / 64 - 1;
+	else
+		/*Maximum value in normal conditions - suggested by hw team */
+		val = 0x1FF;
+	idle |= val << OMAP44XX_REG_READ_IDLE_INTERVAL_SHIFT;
+
+	idle |= EMIF_REG_READ_IDLE_LEN_VAL << OMAP44XX_REG_READ_IDLE_LEN_SHIFT;
+
+	return idle;
+}
+
+static u32 get_ddr_phy_ctrl_1(u32 freq, u8 RL)
+{
+	u32 phy = 0, val = 0;
+
+	phy |= (RL + 2) << OMAP44XX_REG_READ_LATENCY_SHIFT;
+
+	if (freq <= 100000000)
+		val = EMIF_DLL_SLAVE_DLY_CTRL_100_MHZ_AND_LESS;
+	else if (freq <= 200000000)
+		val = EMIF_DLL_SLAVE_DLY_CTRL_200_MHZ;
+	else
+		val = EMIF_DLL_SLAVE_DLY_CTRL_400_MHZ;
+	phy |= val << OMAP44XX_REG_DLL_SLAVE_DLY_CTRL_SHIFT;
+
+	/* Other fields are constant magic values. Hardcode them together */
+	phy |= EMIF_DDR_PHY_CTRL_1_BASE_VAL <<
+		OMAP44XX_EMIF_DDR_PHY_CTRL_1_BASE_VAL_SHIFT;
+
+	return phy;
+}
+
+static u32 get_emif_mem_size(struct emif_device_details *devices)
+{
+	u32 size_mbytes = 0, temp;
+
+	if (!devices)
+		return 0;
+
+	if (devices->cs0_device_details) {
+		temp = devices->cs0_device_details->density;
+		size_mbytes += lpddr2_density_2_size_in_mbytes[temp];
+	}
+
+	if (devices->cs1_device_details) {
+		temp = devices->cs1_device_details->density;
+		size_mbytes += lpddr2_density_2_size_in_mbytes[temp];
+	}
+	/* convert to bytes */
+	return size_mbytes << 20;
+}
+
+/* Gets the encoding corresponding to a given DMM section size */
+u32 get_dmm_section_size_map(u32 section_size)
+{
+	/*
+	 * Section size mapping:
+	 * 0x0: 16-MiB section
+	 * 0x1: 32-MiB section
+	 * 0x2: 64-MiB section
+	 * 0x3: 128-MiB section
+	 * 0x4: 256-MiB section
+	 * 0x5: 512-MiB section
+	 * 0x6: 1-GiB section
+	 * 0x7: 2-GiB section
+	 */
+	section_size >>= 24; /* divide by 16 MB */
+	return log_2_n_round_down(section_size);
+}
+
+static void emif_calculate_regs(
+		const struct emif_device_details *emif_dev_details,
+		u32 freq, struct emif_regs *regs)
+{
+	u32 temp, sys_freq;
+	const struct lpddr2_addressing *addressing;
+	const struct lpddr2_ac_timings *timings;
+	const struct lpddr2_min_tck *min_tck;
+	const struct lpddr2_device_details *cs0_dev_details =
+					emif_dev_details->cs0_device_details;
+	const struct lpddr2_device_details *cs1_dev_details =
+					emif_dev_details->cs1_device_details;
+	const struct lpddr2_device_timings *cs0_dev_timings =
+					emif_dev_details->cs0_device_timings;
+
+	emif_assert(emif_dev_details);
+	emif_assert(regs);
+	/*
+	 * You can not have a device on CS1 without one on CS0
+	 * So configuring EMIF without a device on CS0 doesn't
+	 * make sense
+	 */
+	emif_assert(cs0_dev_details);
+	emif_assert(cs0_dev_details->type != LPDDR2_TYPE_NVM);
+	/*
+	 * If there is a device on CS1 it should be same type as CS0
+	 * (or NVM. But NVM is not supported in this driver yet)
+	 */
+	emif_assert((cs1_dev_details == NULL) ||
+		    (cs1_dev_details->type == LPDDR2_TYPE_NVM) ||
+		    (cs0_dev_details->type == cs1_dev_details->type));
+	emif_assert(freq <= MAX_LPDDR2_FREQ);
+
+	set_ddr_clk_period(freq);
+
+	/*
+	 * The device on CS0 is used for all timing calculations
+	 * There is only one set of registers for timings per EMIF. So, if the
+	 * second CS(CS1) has a device, it should have the same timings as the
+	 * device on CS0
+	 */
+	timings = get_timings_table(cs0_dev_timings->ac_timings, freq);
+	emif_assert(timings);
+	min_tck = cs0_dev_timings->min_tck;
+
+	temp = addressing_table_index(cs0_dev_details->type,
+				      cs0_dev_details->density,
+				      cs0_dev_details->io_width);
+
+	emif_assert((temp >= 0));
+	addressing = &(addressing_table[temp]);
+	emif_assert(addressing);
+
+	sys_freq = get_sys_clk_freq();
+
+	regs->sdram_config_init = get_sdram_config_reg(cs0_dev_details,
+							cs1_dev_details,
+							addressing, RL_BOOT);
+
+	regs->sdram_config = get_sdram_config_reg(cs0_dev_details,
+						cs1_dev_details,
+						addressing, RL_FINAL);
+
+	regs->ref_ctrl = get_sdram_ref_ctrl(freq, addressing);
+
+	regs->sdram_tim1 = get_sdram_tim_1_reg(timings, min_tck, addressing);
+
+	regs->sdram_tim2 = get_sdram_tim_2_reg(timings, min_tck);
+
+	regs->sdram_tim3 = get_sdram_tim_3_reg(timings, min_tck, addressing);
+
+	regs->read_idle_ctrl = get_read_idle_ctrl_reg(LPDDR2_VOLTAGE_STABLE);
+
+	regs->temp_alert_config =
+	    get_temp_alert_config(cs1_dev_details, addressing, 0);
+
+	regs->zq_config = get_zq_config_reg(cs1_dev_details, addressing,
+					    LPDDR2_VOLTAGE_STABLE);
+
+	regs->emif_ddr_phy_ctlr_1_init =
+			get_ddr_phy_ctrl_1(sys_freq / 2, RL_BOOT);
+
+	regs->emif_ddr_phy_ctlr_1 =
+			get_ddr_phy_ctrl_1(freq, RL_FINAL);
+
+	regs->freq = freq;
+
+	print_timing_reg(regs->sdram_config_init);
+	print_timing_reg(regs->sdram_config);
+	print_timing_reg(regs->ref_ctrl);
+	print_timing_reg(regs->sdram_tim1);
+	print_timing_reg(regs->sdram_tim2);
+	print_timing_reg(regs->sdram_tim3);
+	print_timing_reg(regs->read_idle_ctrl);
+	print_timing_reg(regs->temp_alert_config);
+	print_timing_reg(regs->zq_config);
+	print_timing_reg(regs->emif_ddr_phy_ctlr_1);
+	print_timing_reg(regs->emif_ddr_phy_ctlr_1_init);
+}
+#endif /* CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS */
+
+#ifdef CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS
+/* Base AC Timing values specified by JESD209-2 for 400MHz operation */
+static const struct lpddr2_ac_timings timings_jedec_400_mhz = {
+	.max_freq = 400000000,
+	.RL = 6,
+	.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
+};
+
+/* Base AC Timing values specified by JESD209-2 for 333 MHz operation */
+static const struct lpddr2_ac_timings timings_jedec_333_mhz = {
+	.max_freq = 333000000,
+	.RL = 5,
+	.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
+};
+
+/* Base AC Timing values specified by JESD209-2 for 200 MHz operation */
+static const struct lpddr2_ac_timings timings_jedec_200_mhz = {
+	.max_freq = 200000000,
+	.RL = 3,
+	.tRPab = 21,
+	.tRCD = 18,
+	.tWR = 15,
+	.tRASmin = 42,
+	.tRRD = 10,
+	.tWTRx2 = 20,
+	.tXSR = 140,
+	.tXPx2 = 15,
+	.tRFCab = 130,
+	.tRTPx2 = 15,
+	.tCKE = 3,
+	.tCKESR = 15,
+	.tZQCS = 90,
+	.tZQCL = 360,
+	.tZQINIT = 1000,
+	.tDQSCKMAXx2 = 11,
+	.tRASmax = 70,
+	.tFAW = 50
+};
+
+/*
+ * Min tCK values specified by JESD209-2
+ * Min tCK specifies the minimum duration of some AC timing parameters in terms
+ * of the number of cycles. If the calculated number of cycles based on the
+ * absolute time value is less than the min tCK value, min tCK value should
+ * be used instead. This typically happens at low frequencies.
+ */
+static const struct lpddr2_min_tck min_tck_jedec = {
+	.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 const*
+			jedec_ac_timings[MAX_NUM_SPEEDBINS] = {
+	&timings_jedec_200_mhz,
+	&timings_jedec_333_mhz,
+	&timings_jedec_400_mhz
+};
+
+static const struct lpddr2_device_timings jedec_default_timings = {
+	.ac_timings = jedec_ac_timings,
+	.min_tck = &min_tck_jedec
+};
+
+void emif_get_device_timings(u32 emif_nr,
+		const struct lpddr2_device_timings **cs0_device_timings,
+		const struct lpddr2_device_timings **cs1_device_timings)
+{
+	/* Assume Identical devices on EMIF1 & EMIF2 */
+	*cs0_device_timings = &jedec_default_timings;
+	*cs1_device_timings = &jedec_default_timings;
+}
+#endif /* CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS */
+
+#ifdef CONFIG_SYS_AUTOMATIC_SDRAM_DETECTION
+const char *get_lpddr2_type(u8 type_id)
+{
+	switch (type_id) {
+	case LPDDR2_TYPE_S4:
+		return "LPDDR2-S4";
+	case LPDDR2_TYPE_S2:
+		return "LPDDR2-S2";
+	default:
+		return NULL;
+	}
+}
+
+const char *get_lpddr2_io_width(u8 width_id)
+{
+	switch (width_id) {
+	case LPDDR2_IO_WIDTH_8:
+		return "x8";
+	case LPDDR2_IO_WIDTH_16:
+		return "x16";
+	case LPDDR2_IO_WIDTH_32:
+		return "x32";
+	default:
+		return NULL;
+	}
+}
+
+const char *get_lpddr2_manufacturer(u32 manufacturer)
+{
+	switch (manufacturer) {
+	case LPDDR2_MANUFACTURER_SAMSUNG:
+		return "Samsung";
+	case LPDDR2_MANUFACTURER_QIMONDA:
+		return "Qimonda";
+	case LPDDR2_MANUFACTURER_ELPIDA:
+		return "Elpida";
+	case LPDDR2_MANUFACTURER_ETRON:
+		return "Etron";
+	case LPDDR2_MANUFACTURER_NANYA:
+		return "Nanya";
+	case LPDDR2_MANUFACTURER_HYNIX:
+		return "Hynix";
+	case LPDDR2_MANUFACTURER_MOSEL:
+		return "Mosel";
+	case LPDDR2_MANUFACTURER_WINBOND:
+		return "Winbond";
+	case LPDDR2_MANUFACTURER_ESMT:
+		return "ESMT";
+	case LPDDR2_MANUFACTURER_SPANSION:
+		return "Spansion";
+	case LPDDR2_MANUFACTURER_SST:
+		return "SST";
+	case LPDDR2_MANUFACTURER_ZMOS:
+		return "ZMOS";
+	case LPDDR2_MANUFACTURER_INTEL:
+		return "Intel";
+	case LPDDR2_MANUFACTURER_NUMONYX:
+		return "Numonyx";
+	case LPDDR2_MANUFACTURER_MICRON:
+		return "Micron";
+	default:
+		return NULL;
+	}
+}
+
+static void display_sdram_details(u32 emif_nr, u32 cs,
+				  struct lpddr2_device_details *device)
+{
+	const char *mfg_str;
+	const char *type_str;
+	char density_str[10];
+	u32 density;
+
+	debug("EMIF%d CS%d\t", emif_nr, cs);
+
+	if (!device) {
+		debug("None\n");
+		return;
+	}
+
+	mfg_str = get_lpddr2_manufacturer(device->manufacturer);
+	type_str = get_lpddr2_type(device->type);
+
+	density = lpddr2_density_2_size_in_mbytes[device->density];
+	if ((density / 1024 * 1024) == density) {
+		density /= 1024;
+		sprintf(density_str, "%d GB", density);
+	} else
+		sprintf(density_str, "%d MB", density);
+	if (mfg_str && type_str)
+		debug("%s\t\t%s\t%s\n", mfg_str, type_str, density_str);
+}
+
+static u8 is_lpddr2_sdram_present(u32 base, u32 cs,
+				  struct lpddr2_device_details *lpddr2_device)
+{
+	u32 mr = 0, temp;
+
+	mr = get_mr(base, cs, LPDDR2_MR0);
+	if (mr > 0xFF) {
+		/* Mode register value bigger than 8 bit */
+		return 0;
+	}
+
+	temp = (mr & LPDDR2_MR0_DI_MASK) >> LPDDR2_MR0_DI_SHIFT;
+	if (temp) {
+		/* Not SDRAM */
+		return 0;
+	}
+	temp = (mr & LPDDR2_MR0_DNVI_MASK) >> LPDDR2_MR0_DNVI_SHIFT;
+
+	if (temp) {
+		/* DNV supported - But DNV is only supported for NVM */
+		return 0;
+	}
+
+	mr = get_mr(base, cs, LPDDR2_MR4);
+	if (mr > 0xFF) {
+		/* Mode register value bigger than 8 bit */
+		return 0;
+	}
+
+	mr = get_mr(base, cs, LPDDR2_MR5);
+	if (mr >= 0xFF) {
+		/* Mode register value bigger than 8 bit */
+		return 0;
+	}
+
+	if (!get_lpddr2_manufacturer(mr)) {
+		/* Manufacturer not identified */
+		return 0;
+	}
+	lpddr2_device->manufacturer = mr;
+
+	mr = get_mr(base, cs, LPDDR2_MR6);
+	if (mr >= 0xFF) {
+		/* Mode register value bigger than 8 bit */
+		return 0;
+	}
+
+	mr = get_mr(base, cs, LPDDR2_MR7);
+	if (mr >= 0xFF) {
+		/* Mode register value bigger than 8 bit */
+		return 0;
+	}
+
+	mr = get_mr(base, cs, LPDDR2_MR8);
+	if (mr >= 0xFF) {
+		/* Mode register value bigger than 8 bit */
+		return 0;
+	}
+
+	temp = (mr & MR8_TYPE_MASK) >> MR8_TYPE_SHIFT;
+	if (!get_lpddr2_type(temp)) {
+		/* Not SDRAM */
+		return 0;
+	}
+	lpddr2_device->type = temp;
+
+	temp = (mr & MR8_DENSITY_MASK) >> MR8_DENSITY_SHIFT;
+	if (temp > LPDDR2_DENSITY_32Gb) {
+		/* Density not supported */
+		return 0;
+	}
+	lpddr2_device->density = temp;
+
+	temp = (mr & MR8_IO_WIDTH_MASK) >> MR8_IO_WIDTH_SHIFT;
+	if (!get_lpddr2_io_width(temp)) {
+		/* IO width unsupported value */
+		return 0;
+	}
+	lpddr2_device->io_width = temp;
+
+	/*
+	 * If all the above tests pass we should
+	 * have a device on this chip-select
+	 */
+	return 1;
+}
+
+struct lpddr2_device_details *emif_get_device_details(u32 emif_nr, u8 cs,
+			struct lpddr2_device_details *lpddr2_dev_details)
+{
+	u32 phy;
+	u32 base = (emif_nr == 1) ? OMAP44XX_EMIF1 : OMAP44XX_EMIF2;
+	struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
+
+	if (!lpddr2_dev_details)
+		return NULL;
+
+	/* Do the minimum init for mode register accesses */
+	if (!running_from_sdram()) {
+		phy = get_ddr_phy_ctrl_1(get_sys_clk_freq() / 2, RL_BOOT);
+		writel(phy, &emif->emif_ddr_phy_ctrl_1);
+	}
+
+	if (!(is_lpddr2_sdram_present(base, cs, lpddr2_dev_details)))
+		return NULL;
+
+	display_sdram_details(emif_num(base), cs, lpddr2_dev_details);
+
+	return lpddr2_dev_details;
+}
+#endif /* CONFIG_SYS_AUTOMATIC_SDRAM_DETECTION */
+
+static void do_sdram_init(u32 base)
+{
+	const struct emif_regs *regs;
+	u32 in_sdram, emif_nr;
+
+	debug(">>do_sdram_init() %x\n", base);
+
+	in_sdram = running_from_sdram();
+	emif_nr = (base == OMAP44XX_EMIF1) ? 1 : 2;
+
+#ifdef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS
+	emif_get_reg_dump(emif_nr, &regs);
+	if (!regs) {
+		debug("EMIF: reg dump not provided\n");
+		return;
+	}
+#else
+	/*
+	 * The user has not provided the register values. We need to
+	 * calculate it based on the timings and the DDR frequency
+	 */
+	struct emif_device_details dev_details;
+	struct emif_regs calculated_regs;
+
+	/*
+	 * Get device details:
+	 * - Discovered if CONFIG_SYS_AUTOMATIC_SDRAM_DETECTION is set
+	 * - Obtained from user otherwise
+	 */
+	struct lpddr2_device_details cs0_dev_details, cs1_dev_details;
+	emif_reset_phy(base);
+	dev_details.cs0_device_details = emif_get_device_details(base, CS0,
+						&cs0_dev_details);
+	dev_details.cs1_device_details = emif_get_device_details(base, CS1,
+						&cs1_dev_details);
+	emif_reset_phy(base);
+
+	/* Return if no devices on this EMIF */
+	if (!dev_details.cs0_device_details &&
+	    !dev_details.cs1_device_details) {
+		emif_sizes[emif_nr - 1] = 0;
+		return;
+	}
+
+	if (!in_sdram)
+		emif_sizes[emif_nr - 1] = get_emif_mem_size(&dev_details);
+
+	/*
+	 * Get device timings:
+	 * - Default timings specified by JESD209-2 if
+	 *   CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS is set
+	 * - Obtained from user otherwise
+	 */
+	emif_get_device_timings(emif_nr, &dev_details.cs0_device_timings,
+				&dev_details.cs1_device_timings);
+
+	/* Calculate the register values */
+	emif_calculate_regs(&dev_details, omap4_ddr_clk(), &calculated_regs);
+	regs = &calculated_regs;
+#endif /* CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS */
+
+	/*
+	 * Initializing the LPDDR2 device can not happen from SDRAM.
+	 * Changing the timing registers in EMIF can happen(going from one
+	 * OPP to another)
+	 */
+	if (!in_sdram)
+		lpddr2_init(base, regs);
+
+	/* Write to the shadow registers */
+	emif_update_timings(base, regs);
+
+	debug("<<do_sdram_init() %x\n", base);
+}
+
+static void emif_post_init_config(u32 base)
+{
+	struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
+	u32 omap4_rev = omap_revision();
+
+	/* reset phy on ES2.0 */
+	if (omap4_rev == OMAP4430_ES2_0)
+		emif_reset_phy(base);
+
+	/* Put EMIF back in smart idle on ES1.0 */
+	if (omap4_rev == OMAP4430_ES1_0)
+		writel(0x80000000, &emif->emif_pwr_mgmt_ctrl);
+}
+
+static void dmm_init(u32 base)
+{
+	const struct dmm_lisa_map_regs *lisa_map_regs;
+
+#ifdef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS
+	emif_get_dmm_regs(&lisa_map_regs);
+#else
+	u32 emif1_size, emif2_size, mapped_size, section_map = 0;
+	u32 section_cnt, sys_addr;
+	struct dmm_lisa_map_regs lis_map_regs_calculated = {0};
+
+	mapped_size = 0;
+	section_cnt = 3;
+	sys_addr = CONFIG_SYS_SDRAM_BASE;
+	emif1_size = emif_sizes[0];
+	emif2_size = emif_sizes[1];
+	debug("emif1_size 0x%x emif2_size 0x%x\n", emif1_size, emif2_size);
+
+	if (!emif1_size && !emif2_size)
+		return;
+
+	/* symmetric interleaved section */
+	if (emif1_size && emif2_size) {
+		mapped_size = min(emif1_size, emif2_size);
+		section_map = DMM_LISA_MAP_INTERLEAVED_BASE_VAL;
+		section_map |= 0 << OMAP44XX_SDRC_ADDR_SHIFT;
+		/* only MSB */
+		section_map |= (sys_addr >> 24) <<
+				OMAP44XX_SYS_ADDR_SHIFT;
+		section_map |= get_dmm_section_size_map(mapped_size * 2)
+				<< OMAP44XX_SYS_SIZE_SHIFT;
+		lis_map_regs_calculated.dmm_lisa_map_3 = section_map;
+		emif1_size -= mapped_size;
+		emif2_size -= mapped_size;
+		sys_addr += (mapped_size * 2);
+		section_cnt--;
+	}
+
+	/*
+	 * Single EMIF section(we can have a maximum of 1 single EMIF
+	 * section- either EMIF1 or EMIF2 or none, but not both)
+	 */
+	if (emif1_size) {
+		section_map = DMM_LISA_MAP_EMIF1_ONLY_BASE_VAL;
+		section_map |= get_dmm_section_size_map(emif1_size)
+				<< OMAP44XX_SYS_SIZE_SHIFT;
+		/* only MSB */
+		section_map |= (mapped_size >> 24) <<
+				OMAP44XX_SDRC_ADDR_SHIFT;
+		/* only MSB */
+		section_map |= (sys_addr >> 24) << OMAP44XX_SYS_ADDR_SHIFT;
+		section_cnt--;
+	}
+	if (emif2_size) {
+		section_map = DMM_LISA_MAP_EMIF2_ONLY_BASE_VAL;
+		section_map |= get_dmm_section_size_map(emif2_size) <<
+				OMAP44XX_SYS_SIZE_SHIFT;
+		/* only MSB */
+		section_map |= mapped_size >> 24 << OMAP44XX_SDRC_ADDR_SHIFT;
+		/* only MSB */
+		section_map |= sys_addr >> 24 << OMAP44XX_SYS_ADDR_SHIFT;
+		section_cnt--;
+	}
+
+	if (section_cnt == 2) {
+		/* Only 1 section - either symmetric or single EMIF */
+		lis_map_regs_calculated.dmm_lisa_map_3 = section_map;
+		lis_map_regs_calculated.dmm_lisa_map_2 = 0;
+		lis_map_regs_calculated.dmm_lisa_map_1 = 0;
+	} else {
+		/* 2 sections - 1 symmetric, 1 single EMIF */
+		lis_map_regs_calculated.dmm_lisa_map_2 = section_map;
+		lis_map_regs_calculated.dmm_lisa_map_1 = 0;
+	}
+
+	/* TRAP for invalid TILER mappings in section 0 */
+	lis_map_regs_calculated.dmm_lisa_map_0 = DMM_LISA_MAP_0_INVAL_ADDR_TRAP;
+
+	lisa_map_regs = &lis_map_regs_calculated;
+#endif
+	struct dmm_lisa_map_regs *hw_lisa_map_regs =
+	    (struct dmm_lisa_map_regs *)base;
+
+	writel(0, &hw_lisa_map_regs->dmm_lisa_map_3);
+	writel(0, &hw_lisa_map_regs->dmm_lisa_map_2);
+	writel(0, &hw_lisa_map_regs->dmm_lisa_map_1);
+	writel(0, &hw_lisa_map_regs->dmm_lisa_map_0);
+
+	writel(lisa_map_regs->dmm_lisa_map_3,
+		&hw_lisa_map_regs->dmm_lisa_map_3);
+	writel(lisa_map_regs->dmm_lisa_map_2,
+		&hw_lisa_map_regs->dmm_lisa_map_2);
+	writel(lisa_map_regs->dmm_lisa_map_1,
+		&hw_lisa_map_regs->dmm_lisa_map_1);
+	writel(lisa_map_regs->dmm_lisa_map_0,
+		&hw_lisa_map_regs->dmm_lisa_map_0);
+
+	if (omap_revision() >= OMAP4460_ES1_0) {
+		hw_lisa_map_regs =
+		    (struct dmm_lisa_map_regs *)OMAP44XX_MA_LISA_MAP_BASE;
+
+		writel(lisa_map_regs->dmm_lisa_map_3,
+			&hw_lisa_map_regs->dmm_lisa_map_3);
+		writel(lisa_map_regs->dmm_lisa_map_2,
+			&hw_lisa_map_regs->dmm_lisa_map_2);
+		writel(lisa_map_regs->dmm_lisa_map_1,
+			&hw_lisa_map_regs->dmm_lisa_map_1);
+		writel(lisa_map_regs->dmm_lisa_map_0,
+			&hw_lisa_map_regs->dmm_lisa_map_0);
+	}
+}
+
+/*
+ * SDRAM initialization:
+ * SDRAM initialization has two parts:
+ * 1. Configuring the SDRAM device
+ * 2. Update the AC timings related parameters in the EMIF module
+ * (1) should be done only once and should not be done while we are
+ * running from SDRAM.
+ * (2) can and should be done more than once if OPP changes.
+ * Particularly, this may be needed when we boot without SPL and
+ * and using Configuration Header(CH). ROM code supports only at 50% OPP
+ * at boot (low power boot). So u-boot has to switch to OPP100 and update
+ * the frequency. So,
+ * Doing (1) and (2) makes sense - first time initialization
+ * Doing (2) and not (1) makes sense - OPP change (when using CH)
+ * Doing (1) and not (2) doen't make sense
+ * See do_sdram_init() for the details
+ */
+void sdram_init(void)
+{
+	u32 in_sdram, size_prog, size_detect;
+
+	debug(">>sdram_init()\n");
+
+	if (omap4_hw_init_context() == OMAP_INIT_CONTEXT_UBOOT_AFTER_SPL)
+		return;
+
+	in_sdram = running_from_sdram();
+	debug("in_sdram = %d\n", in_sdram);
+
+	if (!in_sdram)
+		bypass_dpll(&prcm->cm_clkmode_dpll_core);
+
+
+	do_sdram_init(OMAP44XX_EMIF1);
+	do_sdram_init(OMAP44XX_EMIF2);
+
+	if (!in_sdram) {
+		dmm_init(OMAP44XX_DMM_LISA_MAP_BASE);
+		emif_post_init_config(OMAP44XX_EMIF1);
+		emif_post_init_config(OMAP44XX_EMIF2);
+
+	}
+
+	/* for the shadow registers to take effect */
+	freq_update_core();
+
+	/* Do some testing after the init */
+	if (!in_sdram) {
+		size_prog = omap4_sdram_size();
+		size_detect = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
+						size_prog);
+		/* Compare with the size programmed */
+		if (size_detect != size_prog) {
+			printf("SDRAM: identified size not same as expected"
+				" size identified: %x expected: %x\n",
+				size_detect,
+				size_prog);
+		} else
+			debug("get_ram_size() successful");
+	}
+
+	debug("<<sdram_init()\n");
+}
diff --git a/arch/arm/cpu/armv7/omap-common/hwinit-common.c b/arch/arm/cpu/armv7/omap-common/hwinit-common.c
new file mode 100644
index 0000000..8e765cf
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap-common/hwinit-common.c
@@ -0,0 +1,384 @@
+/*
+ *
+ * Common functions for OMAP4 based boards
+ *
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ *
+ * Author :
+ *	Aneesh V	<aneesh@ti.com>
+ *	Steve Sakoman	<steve@sakoman.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+#include <asm/armv7.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/sizes.h>
+#include <asm/arch/emif.h>
+#include <asm/arch/gpio.h>
+#include "../omap4/omap4_mux_data.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+u32 *const omap4_revision = (u32 *)OMAP4_SRAM_SCRATCH_OMAP4_REV;
+
+static const struct gpio_bank gpio_bank_44xx[6] = {
+	{ (void *)OMAP44XX_GPIO1_BASE, METHOD_GPIO_24XX },
+	{ (void *)OMAP44XX_GPIO2_BASE, METHOD_GPIO_24XX },
+	{ (void *)OMAP44XX_GPIO3_BASE, METHOD_GPIO_24XX },
+	{ (void *)OMAP44XX_GPIO4_BASE, METHOD_GPIO_24XX },
+	{ (void *)OMAP44XX_GPIO5_BASE, METHOD_GPIO_24XX },
+	{ (void *)OMAP44XX_GPIO6_BASE, METHOD_GPIO_24XX },
+};
+
+const struct gpio_bank *const omap_gpio_bank = gpio_bank_44xx;
+
+#ifdef CONFIG_SPL_BUILD
+/*
+ * We use static variables because global data is not ready yet.
+ * Initialized data is available in SPL right from the beginning.
+ * We would not typically need to save these parameters in regular
+ * U-Boot. This is needed only in SPL at the moment.
+ */
+u32 omap4_boot_device = BOOT_DEVICE_MMC1;
+u32 omap4_boot_mode = MMCSD_MODE_FAT;
+
+u32 omap_boot_device(void)
+{
+	return omap4_boot_device;
+}
+
+u32 omap_boot_mode(void)
+{
+	return omap4_boot_mode;
+}
+
+/*
+ * Some tuning of IOs for optimal power and performance
+ */
+static void do_io_settings(void)
+{
+	u32 lpddr2io;
+	struct control_lpddr2io_regs *lpddr2io_regs =
+		(struct control_lpddr2io_regs *)LPDDR2_IO_REGS_BASE;
+	struct omap4_sys_ctrl_regs *const ctrl =
+		(struct omap4_sys_ctrl_regs *)SYSCTRL_GENERAL_CORE_BASE;
+
+	u32 omap4_rev = omap_revision();
+
+	if (omap4_rev == OMAP4430_ES1_0)
+		lpddr2io = CONTROL_LPDDR2IO_SLEW_125PS_DRV8_PULL_DOWN;
+	else if (omap4_rev == OMAP4430_ES2_0)
+		lpddr2io = CONTROL_LPDDR2IO_SLEW_325PS_DRV8_GATE_KEEPER;
+	else
+		lpddr2io = CONTROL_LPDDR2IO_SLEW_315PS_DRV12_PULL_DOWN;
+
+	/* EMIF1 */
+	writel(lpddr2io, &lpddr2io_regs->control_lpddr2io1_0);
+	writel(lpddr2io, &lpddr2io_regs->control_lpddr2io1_1);
+	/* No pull for GR10 as per hw team's recommendation */
+	writel(lpddr2io & ~LPDDR2IO_GR10_WD_MASK,
+		&lpddr2io_regs->control_lpddr2io1_2);
+	writel(CONTROL_LPDDR2IO_3_VAL, &lpddr2io_regs->control_lpddr2io1_3);
+
+	/* EMIF2 */
+	writel(lpddr2io, &lpddr2io_regs->control_lpddr2io2_0);
+	writel(lpddr2io, &lpddr2io_regs->control_lpddr2io2_1);
+	/* No pull for GR10 as per hw team's recommendation */
+	writel(lpddr2io & ~LPDDR2IO_GR10_WD_MASK,
+		&lpddr2io_regs->control_lpddr2io2_2);
+	writel(CONTROL_LPDDR2IO_3_VAL, &lpddr2io_regs->control_lpddr2io2_3);
+
+	/*
+	 * Some of these settings (TRIM values) come from eFuse and are
+	 * in turn programmed in the eFuse at manufacturing time after
+	 * calibration of the device. Do the software over-ride only if
+	 * the device is not correctly trimmed
+	 */
+	if (!(readl(&ctrl->control_std_fuse_opp_bgap) & 0xFFFF)) {
+
+		writel(LDOSRAM_VOLT_CTRL_OVERRIDE,
+			&ctrl->control_ldosram_iva_voltage_ctrl);
+
+		writel(LDOSRAM_VOLT_CTRL_OVERRIDE,
+			&ctrl->control_ldosram_mpu_voltage_ctrl);
+
+		writel(LDOSRAM_VOLT_CTRL_OVERRIDE,
+			&ctrl->control_ldosram_core_voltage_ctrl);
+	}
+
+	if (!readl(&ctrl->control_efuse_1))
+		writel(CONTROL_EFUSE_1_OVERRIDE, &ctrl->control_efuse_1);
+
+	if (!readl(&ctrl->control_efuse_2))
+		writel(CONTROL_EFUSE_2_OVERRIDE, &ctrl->control_efuse_2);
+}
+#endif
+
+void do_set_mux(u32 base, struct pad_conf_entry const *array, int size)
+{
+	int i;
+	struct pad_conf_entry *pad = (struct pad_conf_entry *) array;
+
+	for (i = 0; i < size; i++, pad++)
+		writew(pad->val, base + pad->offset);
+}
+
+static void set_muxconf_regs_essential(void)
+{
+	do_set_mux(CONTROL_PADCONF_CORE, core_padconf_array_essential,
+		   sizeof(core_padconf_array_essential) /
+		   sizeof(struct pad_conf_entry));
+
+	do_set_mux(CONTROL_PADCONF_WKUP, wkup_padconf_array_essential,
+		   sizeof(wkup_padconf_array_essential) /
+		   sizeof(struct pad_conf_entry));
+
+	if (omap_revision() >= OMAP4460_ES1_0)
+		do_set_mux(CONTROL_PADCONF_WKUP,
+				 wkup_padconf_array_essential_4460,
+				 sizeof(wkup_padconf_array_essential_4460) /
+				 sizeof(struct pad_conf_entry));
+}
+
+static void set_mux_conf_regs(void)
+{
+	switch (omap4_hw_init_context()) {
+	case OMAP_INIT_CONTEXT_SPL:
+		set_muxconf_regs_essential();
+		break;
+	case OMAP_INIT_CONTEXT_UBOOT_AFTER_SPL:
+		set_muxconf_regs_non_essential();
+		break;
+	case OMAP_INIT_CONTEXT_UBOOT_FROM_NOR:
+	case OMAP_INIT_CONTEXT_UBOOT_AFTER_CH:
+		set_muxconf_regs_essential();
+		set_muxconf_regs_non_essential();
+		break;
+	}
+}
+
+static u32 cortex_a9_rev(void)
+{
+
+	unsigned int rev;
+
+	/* Read Main ID Register (MIDR) */
+	asm ("mrc p15, 0, %0, c0, c0, 0" : "=r" (rev));
+
+	return rev;
+}
+
+static void init_omap4_revision(void)
+{
+	/*
+	 * For some of the ES2/ES1 boards ID_CODE is not reliable:
+	 * Also, ES1 and ES2 have different ARM revisions
+	 * So use ARM revision for identification
+	 */
+	unsigned int arm_rev = cortex_a9_rev();
+
+	switch (arm_rev) {
+	case MIDR_CORTEX_A9_R0P1:
+		*omap4_revision = OMAP4430_ES1_0;
+		break;
+	case MIDR_CORTEX_A9_R1P2:
+		switch (readl(CONTROL_ID_CODE)) {
+		case OMAP4430_CONTROL_ID_CODE_ES2_0:
+			*omap4_revision = OMAP4430_ES2_0;
+			break;
+		case OMAP4430_CONTROL_ID_CODE_ES2_1:
+			*omap4_revision = OMAP4430_ES2_1;
+			break;
+		case OMAP4430_CONTROL_ID_CODE_ES2_2:
+			*omap4_revision = OMAP4430_ES2_2;
+			break;
+		default:
+			*omap4_revision = OMAP4430_ES2_0;
+			break;
+		}
+		break;
+	case MIDR_CORTEX_A9_R1P3:
+		*omap4_revision = OMAP4430_ES2_3;
+		break;
+	case MIDR_CORTEX_A9_R2P10:
+		switch (readl(CONTROL_ID_CODE)) {
+		case OMAP4460_CONTROL_ID_CODE_ES1_0:
+			*omap4_revision = OMAP4460_ES1_0;
+			break;
+		case OMAP4460_CONTROL_ID_CODE_ES1_1:
+			*omap4_revision = OMAP4460_ES1_1;
+			break;
+		default:
+			*omap4_revision = OMAP4460_ES1_0;
+			break;
+		}
+		break;
+	default:
+		*omap4_revision = OMAP4430_SILICON_ID_INVALID;
+		break;
+	}
+}
+
+void omap_rev_string(char *omap4_rev_string)
+{
+	u32 omap4_rev = omap_revision();
+	u32 omap4_variant = (omap4_rev & 0xFFFF0000) >> 16;
+	u32 major_rev = (omap4_rev & 0x00000F00) >> 8;
+	u32 minor_rev = (omap4_rev & 0x000000F0) >> 4;
+
+	sprintf(omap4_rev_string, "OMAP%x ES%x.%x", omap4_variant, major_rev,
+		minor_rev);
+}
+
+/*
+ * Routine: s_init
+ * Description: Does early system init of watchdog, muxing,  andclocks
+ * Watchdog disable is done always. For the rest what gets done
+ * depends on the boot mode in which this function is executed
+ *   1. s_init of SPL running from SRAM
+ *   2. s_init of U-Boot running from FLASH
+ *   3. s_init of U-Boot loaded to SDRAM by SPL
+ *   4. s_init of U-Boot loaded to SDRAM by ROM code using the
+ *	Configuration Header feature
+ * Please have a look at the respective functions to see what gets
+ * done in each of these cases
+ * This function is called with SRAM stack.
+ */
+void s_init(void)
+{
+	init_omap4_revision();
+	watchdog_init();
+	set_mux_conf_regs();
+#ifdef CONFIG_SPL_BUILD
+	setup_clocks_for_console();
+	preloader_console_init();
+	do_io_settings();
+#endif
+	prcm_init();
+#ifdef CONFIG_SPL_BUILD
+	/* For regular u-boot sdram_init() is called from dram_init() */
+	sdram_init();
+#endif
+}
+
+/*
+ * Routine: wait_for_command_complete
+ * Description: Wait for posting to finish on watchdog
+ */
+void wait_for_command_complete(struct watchdog *wd_base)
+{
+	int pending = 1;
+	do {
+		pending = readl(&wd_base->wwps);
+	} while (pending);
+}
+
+/*
+ * Routine: watchdog_init
+ * Description: Shut down watch dogs
+ */
+void watchdog_init(void)
+{
+	struct watchdog *wd2_base = (struct watchdog *)WDT2_BASE;
+
+	writel(WD_UNLOCK1, &wd2_base->wspr);
+	wait_for_command_complete(wd2_base);
+	writel(WD_UNLOCK2, &wd2_base->wspr);
+}
+
+
+/*
+ * This function finds the SDRAM size available in the system
+ * based on DMM section configurations
+ * This is needed because the size of memory installed may be
+ * different on different versions of the board
+ */
+u32 omap4_sdram_size(void)
+{
+	u32 section, i, total_size = 0, size, addr;
+	for (i = 0; i < 4; i++) {
+		section	= __raw_readl(OMAP44XX_DMM_LISA_MAP_BASE + i*4);
+		addr = section & OMAP44XX_SYS_ADDR_MASK;
+		/* See if the address is valid */
+		if ((addr >= OMAP44XX_DRAM_ADDR_SPACE_START) &&
+		    (addr < OMAP44XX_DRAM_ADDR_SPACE_END)) {
+			size	= ((section & OMAP44XX_SYS_SIZE_MASK) >>
+				   OMAP44XX_SYS_SIZE_SHIFT);
+			size	= 1 << size;
+			size	*= SZ_16M;
+			total_size += size;
+		}
+	}
+	return total_size;
+}
+
+
+/*
+ * Routine: dram_init
+ * Description: sets uboots idea of sdram size
+ */
+int dram_init(void)
+{
+	sdram_init();
+	gd->ram_size = omap4_sdram_size();
+
+	return 0;
+}
+
+/*
+ * Print board information
+ */
+int checkboard(void)
+{
+	puts(sysinfo.board_string);
+	return 0;
+}
+
+/*
+* This function is called by start_armboot. You can reliably use static
+* data. Any boot-time function that require static data should be
+* called from here
+*/
+int arch_cpu_init(void)
+{
+	return 0;
+}
+
+#ifndef CONFIG_SYS_L2CACHE_OFF
+void v7_outer_cache_enable(void)
+{
+	set_pl310_ctrl_reg(1);
+}
+
+void v7_outer_cache_disable(void)
+{
+	set_pl310_ctrl_reg(0);
+}
+#endif
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+void enable_caches(void)
+{
+	/* Enable D-cache. I-cache is already enabled in start.S */
+	dcache_enable();
+}
+#endif
diff --git a/arch/arm/cpu/armv7/omap-common/lowlevel_init.S b/arch/arm/cpu/armv7/omap-common/lowlevel_init.S
new file mode 100644
index 0000000..91525ec
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap-common/lowlevel_init.S
@@ -0,0 +1,87 @@
+/*
+ * Board specific setup info
+ *
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ *
+ * Author :
+ *	Aneesh V	<aneesh@ti.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <asm/arch/omap4.h>
+#ifdef CONFIG_SPL_BUILD
+.global save_boot_params
+save_boot_params:
+	/*
+	 * See if the rom code passed pointer is valid:
+	 * It is not valid if it is not in non-secure SRAM
+	 * This may happen if you are booting with the help of
+	 * debugger
+	 */
+	ldr     r2, =NON_SECURE_SRAM_START
+	cmp	r2, r0
+	bgt	1f
+	ldr	r2, =NON_SECURE_SRAM_END
+	cmp	r2, r0
+	blt	1f
+
+	/* Store the boot device in omap4_boot_device */
+	ldr     r2, [r0, #BOOT_DEVICE_OFFSET]	@ r1 <- value of boot device
+	and	r2, #BOOT_DEVICE_MASK
+	ldr	r3, =omap4_boot_device
+	str     r2, [r3]			@ omap4_boot_device <- r1
+
+	/* Store the boot mode (raw/FAT) in omap4_boot_mode */
+	ldr	r2, [r0, #DEV_DESC_PTR_OFFSET]	@ get the device descriptor ptr
+	ldr	r2, [r2, #DEV_DATA_PTR_OFFSET]	@ get the pDeviceData ptr
+	ldr	r2, [r2, #BOOT_MODE_OFFSET]	@ get the boot mode
+	ldr	r3, =omap4_boot_mode
+	str	r2, [r3]
+1:
+	bx	lr
+#endif
+
+.globl lowlevel_init
+lowlevel_init:
+	/*
+	 * Setup a temporary stack
+	 */
+	ldr	sp, =LOW_LEVEL_SRAM_STACK
+
+	/*
+	 * Save the old lr(passed in ip) and the current lr to stack
+	 */
+	push	{ip, lr}
+
+	/*
+	 * go setup pll, mux, memory
+	 */
+	bl	s_init
+	pop	{ip, pc}
+
+.globl set_pl310_ctrl_reg
+set_pl310_ctrl_reg:
+	PUSH	{r4-r11, lr}	@ save registers - ROM code may pollute
+				@ our registers
+	LDR	r12, =0x102	@ Set PL310 control register - value in R0
+	.word	0xe1600070	@ SMC #0 - hand assembled because -march=armv5
+				@ call ROM Code API to set control register
+	POP	{r4-r11, pc}
diff --git a/arch/arm/cpu/armv7/omap-common/mem-common.c b/arch/arm/cpu/armv7/omap-common/mem-common.c
new file mode 100644
index 0000000..878f0e3
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap-common/mem-common.c
@@ -0,0 +1,45 @@
+/*
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ *
+ * Steve Sakoman <steve@sakoman.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <asm/arch/cpu.h>
+#include <asm/arch/sys_proto.h>
+
+struct gpmc *gpmc_cfg;
+
+/*****************************************************
+ * gpmc_init(): init gpmc bus
+ * This code can only be executed from SRAM or SDRAM.
+ *****************************************************/
+void gpmc_init(void)
+{
+	gpmc_cfg = (struct gpmc *)GPMC_BASE;
+
+	/* global settings */
+	writel(0, &gpmc_cfg->irqenable); /* isr's sources masked */
+	writel(0, &gpmc_cfg->timeout_control);/* timeout disable */
+
+	/*
+	 * Disable the GPMC0 config set by ROM code
+	 * It conflicts with our MPDB (both at 0x08000000)
+	 */
+	writel(0, &gpmc_cfg->cs[0].config7);
+}