ARM: Rename arch/arm/cpu/arm_cortexa8 to armv7

The purpose of this patch is to prepare for adding the OMAP4 architecture, which is Cortex A9

Cortex A8 and A9 both belong to the armv7 architecture, hence the name change.

The two architectures are similar enough that substantial code can be shared.

Signed-off-by: Aneesh V <aneesh@ti.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>

13 files changed, 2605 insertions, 0 deletions

diff --git a/arch/arm/cpu/armv7/omap3/Makefile b/arch/arm/cpu/armv7/omap3/Makefile
new file mode 100644
index 000000000..7d63c6bec
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap3/Makefile
@@ -0,0 +1,58 @@
+#
+# (C) Copyright 2000-2003
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# 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 $(TOPDIR)/config.mk
+
+LIB	=  $(obj)lib$(SOC).a
+
+SOBJS	:= lowlevel_init.o
+SOBJS	+= cache.o
+SOBJS	+= reset.o
+
+COBJS	+= board.o
+COBJS	+= clock.o
+COBJS	+= gpio.o
+COBJS	+= mem.o
+COBJS	+= syslib.o
+COBJS	+= sys_info.o
+COBJS	+= timer.o
+
+COBJS-$(CONFIG_EMIF4)	+= emif4.o
+COBJS-$(CONFIG_SDRC)	+= sdrc.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS) $(COBJS-y) $(SOBJS))
+
+all:	 $(obj).depend $(LIB)
+
+$(LIB):	$(OBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/arch/arm/cpu/armv7/omap3/board.c b/arch/arm/cpu/armv7/omap3/board.c
new file mode 100644
index 000000000..69e56f55c
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap3/board.c
@@ -0,0 +1,329 @@
+/*
+ *
+ * Common board functions for OMAP3 based boards.
+ *
+ * (C) Copyright 2004-2008
+ * Texas Instruments, <www.ti.com>
+ *
+ * Author :
+ *      Sunil Kumar <sunilsaini05@gmail.com>
+ *      Shashi Ranjan <shashiranjanmca05@gmail.com>
+ *
+ * Derived from Beagle Board and 3430 SDP code by
+ *      Richard Woodruff <r-woodruff2@ti.com>
+ *      Syed Mohammed Khasim <khasim@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/io.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/mem.h>
+#include <asm/cache.h>
+
+extern omap3_sysinfo sysinfo;
+
+/******************************************************************************
+ * Routine: delay
+ * Description: spinning delay to use before udelay works
+ *****************************************************************************/
+static inline void delay(unsigned long loops)
+{
+	__asm__ volatile ("1:\n" "subs %0, %1, #1\n"
+			  "bne 1b":"=r" (loops):"0"(loops));
+}
+
+/******************************************************************************
+ * Routine: secure_unlock
+ * Description: Setup security registers for access
+ *              (GP Device only)
+ *****************************************************************************/
+void secure_unlock_mem(void)
+{
+	struct pm *pm_rt_ape_base = (struct pm *)PM_RT_APE_BASE_ADDR_ARM;
+	struct pm *pm_gpmc_base = (struct pm *)PM_GPMC_BASE_ADDR_ARM;
+	struct pm *pm_ocm_ram_base = (struct pm *)PM_OCM_RAM_BASE_ADDR_ARM;
+	struct pm *pm_iva2_base = (struct pm *)PM_IVA2_BASE_ADDR_ARM;
+	struct sms *sms_base = (struct sms *)OMAP34XX_SMS_BASE;
+
+	/* Protection Module Register Target APE (PM_RT) */
+	writel(UNLOCK_1, &pm_rt_ape_base->req_info_permission_1);
+	writel(UNLOCK_1, &pm_rt_ape_base->read_permission_0);
+	writel(UNLOCK_1, &pm_rt_ape_base->wirte_permission_0);
+	writel(UNLOCK_2, &pm_rt_ape_base->addr_match_1);
+
+	writel(UNLOCK_3, &pm_gpmc_base->req_info_permission_0);
+	writel(UNLOCK_3, &pm_gpmc_base->read_permission_0);
+	writel(UNLOCK_3, &pm_gpmc_base->wirte_permission_0);
+
+	writel(UNLOCK_3, &pm_ocm_ram_base->req_info_permission_0);
+	writel(UNLOCK_3, &pm_ocm_ram_base->read_permission_0);
+	writel(UNLOCK_3, &pm_ocm_ram_base->wirte_permission_0);
+	writel(UNLOCK_2, &pm_ocm_ram_base->addr_match_2);
+
+	/* IVA Changes */
+	writel(UNLOCK_3, &pm_iva2_base->req_info_permission_0);
+	writel(UNLOCK_3, &pm_iva2_base->read_permission_0);
+	writel(UNLOCK_3, &pm_iva2_base->wirte_permission_0);
+
+	/* SDRC region 0 public */
+	writel(UNLOCK_1, &sms_base->rg_att0);
+}
+
+/******************************************************************************
+ * Routine: secureworld_exit()
+ * Description: If chip is EMU and boot type is external
+ *		configure secure registers and exit secure world
+ *              general use.
+ *****************************************************************************/
+void secureworld_exit()
+{
+	unsigned long i;
+
+	/* configrue non-secure access control register */
+	__asm__ __volatile__("mrc p15, 0, %0, c1, c1, 2":"=r"(i));
+	/* enabling co-processor CP10 and CP11 accesses in NS world */
+	__asm__ __volatile__("orr %0, %0, #0xC00":"=r"(i));
+	/*
+	 * allow allocation of locked TLBs and L2 lines in NS world
+	 * allow use of PLE registers in NS world also
+	 */
+	__asm__ __volatile__("orr %0, %0, #0x70000":"=r"(i));
+	__asm__ __volatile__("mcr p15, 0, %0, c1, c1, 2":"=r"(i));
+
+	/* Enable ASA in ACR register */
+	__asm__ __volatile__("mrc p15, 0, %0, c1, c0, 1":"=r"(i));
+	__asm__ __volatile__("orr %0, %0, #0x10":"=r"(i));
+	__asm__ __volatile__("mcr p15, 0, %0, c1, c0, 1":"=r"(i));
+
+	/* Exiting secure world */
+	__asm__ __volatile__("mrc p15, 0, %0, c1, c1, 0":"=r"(i));
+	__asm__ __volatile__("orr %0, %0, #0x31":"=r"(i));
+	__asm__ __volatile__("mcr p15, 0, %0, c1, c1, 0":"=r"(i));
+}
+
+/******************************************************************************
+ * Routine: setup_auxcr()
+ * Description: Write to AuxCR desired value using SMI.
+ *              general use.
+ *****************************************************************************/
+void setup_auxcr()
+{
+	unsigned long i;
+	volatile unsigned int j;
+	/* Save r0, r12 and restore them after usage */
+	__asm__ __volatile__("mov %0, r12":"=r"(j));
+	__asm__ __volatile__("mov %0, r0":"=r"(i));
+
+	/*
+	 * GP Device ROM code API usage here
+	 * r12 = AUXCR Write function and r0 value
+	 */
+	__asm__ __volatile__("mov r12, #0x3");
+	__asm__ __volatile__("mrc p15, 0, r0, c1, c0, 1");
+	/* Enabling ASA */
+	__asm__ __volatile__("orr r0, r0, #0x10");
+	/* Enable L1NEON */
+	__asm__ __volatile__("orr r0, r0, #1 << 5");
+	/* SMI instruction to call ROM Code API */
+	__asm__ __volatile__(".word 0xE1600070");
+	/* Set PLD_FWD bit in L2AUXCR (Cortex-A8 erratum 725233 workaround) */
+	__asm__ __volatile__("mov r12, #0x2");
+	__asm__ __volatile__("mrc p15, 1, r0, c9, c0, 2");
+	__asm__ __volatile__("orr r0, r0, #1 << 27");
+	/* SMI instruction to call ROM Code API */
+	__asm__ __volatile__(".word 0xE1600070");
+	__asm__ __volatile__("mov r0, %0":"=r"(i));
+	__asm__ __volatile__("mov r12, %0":"=r"(j));
+}
+
+/******************************************************************************
+ * Routine: try_unlock_sram()
+ * Description: If chip is GP/EMU(special) type, unlock the SRAM for
+ *              general use.
+ *****************************************************************************/
+void try_unlock_memory()
+{
+	int mode;
+	int in_sdram = is_running_in_sdram();
+
+	/*
+	 * if GP device unlock device SRAM for general use
+	 * secure code breaks for Secure/Emulation device - HS/E/T
+	 */
+	mode = get_device_type();
+	if (mode == GP_DEVICE)
+		secure_unlock_mem();
+
+	/*
+	 * If device is EMU and boot is XIP external booting
+	 * Unlock firewalls and disable L2 and put chip
+	 * out of secure world
+	 *
+	 * Assuming memories are unlocked by the demon who put us in SDRAM
+	 */
+	if ((mode <= EMU_DEVICE) && (get_boot_type() == 0x1F)
+	    && (!in_sdram)) {
+		secure_unlock_mem();
+		secureworld_exit();
+	}
+
+	return;
+}
+
+/******************************************************************************
+ * Routine: s_init
+ * Description: Does early system init of muxing and clocks.
+ *              - Called path is with SRAM stack.
+ *****************************************************************************/
+void s_init(void)
+{
+	int in_sdram = is_running_in_sdram();
+
+	watchdog_init();
+
+	try_unlock_memory();
+
+	/*
+	 * Right now flushing at low MPU speed.
+	 * Need to move after clock init
+	 */
+	invalidate_dcache(get_device_type());
+#ifndef CONFIG_ICACHE_OFF
+	icache_enable();
+#endif
+
+#ifdef CONFIG_L2_OFF
+	l2_cache_disable();
+#else
+	l2_cache_enable();
+#endif
+	/*
+	 * Writing to AuxCR in U-boot using SMI for GP DEV
+	 * Currently SMI in Kernel on ES2 devices seems to have an issue
+	 * Once that is resolved, we can postpone this config to kernel
+	 */
+	if (get_device_type() == GP_DEVICE)
+		setup_auxcr();
+
+	set_muxconf_regs();
+	delay(100);
+
+	prcm_init();
+
+	per_clocks_enable();
+
+	if (!in_sdram)
+		mem_init();
+}
+
+/******************************************************************************
+ * 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 *)WD2_BASE;
+	struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
+
+	/*
+	 * There are 3 watch dogs WD1=Secure, WD2=MPU, WD3=IVA. WD1 is
+	 * either taken care of by ROM (HS/EMU) or not accessible (GP).
+	 * We need to take care of WD2-MPU or take a PRCM reset. WD3
+	 * should not be running and does not generate a PRCM reset.
+	 */
+
+	sr32(&prcm_base->fclken_wkup, 5, 1, 1);
+	sr32(&prcm_base->iclken_wkup, 5, 1, 1);
+	wait_on_value(ST_WDT2, 0x20, &prcm_base->idlest_wkup, 5);
+
+	writel(WD_UNLOCK1, &wd2_base->wspr);
+	wait_for_command_complete(wd2_base);
+	writel(WD_UNLOCK2, &wd2_base->wspr);
+}
+
+/******************************************************************************
+ * Dummy function to handle errors for EABI incompatibility
+ *****************************************************************************/
+void abort(void)
+{
+}
+
+#ifdef CONFIG_NAND_OMAP_GPMC
+/******************************************************************************
+ * OMAP3 specific command to switch between NAND HW and SW ecc
+ *****************************************************************************/
+static int do_switch_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
+{
+	if (argc != 2)
+		goto usage;
+	if (strncmp(argv[1], "hw", 2) == 0)
+		omap_nand_switch_ecc(1);
+	else if (strncmp(argv[1], "sw", 2) == 0)
+		omap_nand_switch_ecc(0);
+	else
+		goto usage;
+
+	return 0;
+
+usage:
+	printf ("Usage: nandecc %s\n", cmdtp->usage);
+	return 1;
+}
+
+U_BOOT_CMD(
+	nandecc, 2, 1,	do_switch_ecc,
+	"switch OMAP3 NAND ECC calculation algorithm",
+	"[hw/sw] - Switch between NAND hardware (hw) or software (sw) ecc algorithm"
+);
+
+#endif /* CONFIG_NAND_OMAP_GPMC */
+
+#ifdef CONFIG_DISPLAY_BOARDINFO
+/**
+ * Print board information
+ */
+int checkboard (void)
+{
+	char *mem_s ;
+
+	if (is_mem_sdr())
+		mem_s = "mSDR";
+	else
+		mem_s = "LPDDR";
+
+	printf("%s + %s/%s\n", sysinfo.board_string, mem_s,
+			sysinfo.nand_string);
+
+	return 0;
+}
+#endif	/* CONFIG_DISPLAY_BOARDINFO */
diff --git a/arch/arm/cpu/armv7/omap3/cache.S b/arch/arm/cpu/armv7/omap3/cache.S
new file mode 100644
index 000000000..4b65ac58a
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap3/cache.S
@@ -0,0 +1,191 @@
+/*
+ * Copyright (c) 2009 Wind River Systems, Inc.
+ * Tom Rix <Tom.Rix@windriver.com>
+ *
+ * This file is based on and replaces the existing cache.c file
+ * The copyrights for the cache.c file are:
+ *
+ * (C) Copyright 2008 Texas Insturments
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
+ *
+ * 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/omap3.h>
+
+/*
+ * omap3 cache code
+ */
+
+.align 5
+.global invalidate_dcache
+.global l2_cache_enable
+.global l2_cache_disable
+
+/*
+ *	invalidate_dcache()
+ *
+ *	Invalidate the whole D-cache.
+ *
+ *	Corrupted registers: r0-r5, r7, r9-r11
+ *
+ *	- mm	- mm_struct describing address space
+ */
+invalidate_dcache:
+	stmfd	r13!, {r0 - r5, r7, r9 - r12, r14}
+
+	mov	r7, r0				@ take a backup of device type
+	cmp	r0, #0x3			@ check if the device type is
+						@ GP
+	moveq r12, #0x1				@ set up to invalide L2
+smi:	.word 0x01600070			@ Call SMI monitor (smieq)
+	cmp	r7, #0x3			@ compare again in case its
+						@ lost
+	beq	finished_inval			@ if GP device, inval done
+						@ above
+
+	mrc	p15, 1, r0, c0, c0, 1		@ read clidr
+	ands	r3, r0, #0x7000000		@ extract loc from clidr
+	mov	r3, r3, lsr #23			@ left align loc bit field
+	beq	finished_inval			@ if loc is 0, then no need to
+						@ clean
+	mov	r10, #0				@ start clean at cache level 0
+inval_loop1:
+	add	r2, r10, r10, lsr #1		@ work out 3x current cache
+						@ level
+	mov	r1, r0, lsr r2			@ extract cache type bits from
+						@ clidr
+	and	r1, r1, #7			@ mask of the bits for current
+						@ cache only
+	cmp	r1, #2				@ see what cache we have at
+						@ this level
+	blt	skip_inval			@ skip if no cache, or just
+						@ i-cache
+	mcr	p15, 2, r10, c0, c0, 0		@ select current cache level
+						@ in cssr
+	mov	r2, #0				@ operand for mcr SBZ
+	mcr	p15, 0, r2, c7, c5, 4		@ flush prefetch buffer to
+						@ sych the new cssr&csidr,
+						@ with armv7 this is 'isb',
+						@ but we compile with armv5
+	mrc	p15, 1, r1, c0, c0, 0		@ read the new csidr
+	and	r2, r1, #7			@ extract the length of the
+						@ cache lines
+	add	r2, r2, #4			@ add 4 (line length offset)
+	ldr	r4, =0x3ff
+	ands	r4, r4, r1, lsr #3		@ find maximum number on the
+						@ way size
+	clz	r5, r4				@ find bit position of way
+						@ size increment
+	ldr	r7, =0x7fff
+	ands	r7, r7, r1, lsr #13		@ extract max number of the
+						@ index size
+inval_loop2:
+	mov	r9, r4				@ create working copy of max
+						@ way size
+inval_loop3:
+	orr	r11, r10, r9, lsl r5		@ factor way and cache number
+						@ into r11
+	orr	r11, r11, r7, lsl r2		@ factor index number into r11
+	mcr	p15, 0, r11, c7, c6, 2		@ invalidate by set/way
+	subs	r9, r9, #1			@ decrement the way
+	bge	inval_loop3
+	subs	r7, r7, #1			@ decrement the index
+	bge	inval_loop2
+skip_inval:
+	add	r10, r10, #2			@ increment cache number
+	cmp	r3, r10
+	bgt	inval_loop1
+finished_inval:
+	mov	r10, #0				@ swith back to cache level 0
+	mcr	p15, 2, r10, c0, c0, 0		@ select current cache level
+						@ in cssr
+	mcr	p15, 0, r10, c7, c5, 4		@ flush prefetch buffer,
+						@ with armv7 this is 'isb',
+						@ but we compile with armv5
+
+	ldmfd	r13!, {r0 - r5, r7, r9 - r12, pc}
+
+
+l2_cache_enable:
+	stmfd	r13!, {r0, r1, r2, lr}
+	@ ES2 onwards we can disable/enable L2 ourselves
+	bl	get_cpu_rev
+	cmp	r0, #CPU_3XX_ES20
+	blt	l2_cache_disable_EARLIER_THAN_ES2
+	mrc	15, 0, r3, cr1, cr0, 1
+	orr	r3, r3, #2
+	mcr	15, 0, r3, cr1, cr0, 1
+	b	l2_cache_enable_END
+l2_cache_enable_EARLIER_THAN_ES2:
+	@ Save r0, r12 and restore them after usage
+	mov	r3, ip
+	str	r3, [sp, #4]
+	mov	r3, r0
+	@
+	@ GP Device ROM code API usage here
+	@ r12 = AUXCR Write function and r0 value
+	@
+	mov	ip, #3
+	mrc	15, 0, r0, cr1, cr0, 1
+	orr	r0, r0, #2
+	@ SMI instruction to call ROM Code API
+	.word	0xe1600070
+	mov	r0, r3
+	mov	ip, r3
+	str	r3, [sp, #4]
+l2_cache_enable_END:
+	ldmfd	r13!, {r1, r2, r3, pc}
+
+
+l2_cache_disable:
+	stmfd	r13!, {r0, r1, r2, lr}
+	@ ES2 onwards we can disable/enable L2 ourselves
+	bl	get_cpu_rev
+	cmp	r0, #CPU_3XX_ES20
+	blt	l2_cache_disable_EARLIER_THAN_ES2
+	mrc	15, 0, r3, cr1, cr0, 1
+	bic	r3, r3, #2
+	mcr	15, 0, r3, cr1, cr0, 1
+	b	l2_cache_disable_END
+l2_cache_disable_EARLIER_THAN_ES2:
+	@ Save r0, r12 and restore them after usage
+	mov	r3, ip
+	str	r3, [sp, #4]
+	mov	r3, r0
+	@
+	@ GP Device ROM code API usage here
+	@ r12 = AUXCR Write function and r0 value
+	@
+	mov	ip, #3
+	mrc	15, 0, r0, cr1, cr0, 1
+	bic	r0, r0, #2
+	@ SMI instruction to call ROM Code API
+	.word	0xe1600070
+	mov	r0, r3
+	mov	ip, r3
+	str	r3, [sp, #4]
+l2_cache_disable_END:
+	ldmfd	r13!, {r1, r2, r3, pc}
diff --git a/arch/arm/cpu/armv7/omap3/clock.c b/arch/arm/cpu/armv7/omap3/clock.c
new file mode 100644
index 000000000..6330c9e5d
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap3/clock.c
@@ -0,0 +1,416 @@
+/*
+ * (C) Copyright 2008
+ * Texas Instruments, <www.ti.com>
+ *
+ * Author :
+ *      Manikandan Pillai <mani.pillai@ti.com>
+ *
+ * Derived from Beagle Board and OMAP3 SDP code by
+ *      Richard Woodruff <r-woodruff2@ti.com>
+ *      Syed Mohammed Khasim <khasim@ti.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 <common.h>
+#include <asm/io.h>
+#include <asm/arch/clocks.h>
+#include <asm/arch/clocks_omap3.h>
+#include <asm/arch/mem.h>
+#include <asm/arch/sys_proto.h>
+#include <environment.h>
+#include <command.h>
+
+/******************************************************************************
+ * get_sys_clk_speed() - determine reference oscillator speed
+ *                       based on known 32kHz clock and gptimer.
+ *****************************************************************************/
+u32 get_osc_clk_speed(void)
+{
+	u32 start, cstart, cend, cdiff, cdiv, val;
+	struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
+	struct prm *prm_base = (struct prm *)PRM_BASE;
+	struct gptimer *gpt1_base = (struct gptimer *)OMAP34XX_GPT1;
+	struct s32ktimer *s32k_base = (struct s32ktimer *)SYNC_32KTIMER_BASE;
+
+	val = readl(&prm_base->clksrc_ctrl);
+
+	if (val & SYSCLKDIV_2)
+		cdiv = 2;
+	else if (val & SYSCLKDIV_1)
+		cdiv = 1;
+	else
+		/*
+		 * Should never reach here! (Assume divider as 1)
+		 */
+		cdiv = 1;
+
+	/* enable timer2 */
+	val = readl(&prcm_base->clksel_wkup) | CLKSEL_GPT1;
+
+	/* select sys_clk for GPT1 */
+	writel(val, &prcm_base->clksel_wkup);
+
+	/* Enable I and F Clocks for GPT1 */
+	val = readl(&prcm_base->iclken_wkup) | EN_GPT1 | EN_32KSYNC;
+	writel(val, &prcm_base->iclken_wkup);
+
+	val = readl(&prcm_base->fclken_wkup) | EN_GPT1;
+	writel(val, &prcm_base->fclken_wkup);
+
+	writel(0, &gpt1_base->tldr);		/* start counting at 0 */
+	writel(GPT_EN, &gpt1_base->tclr);	/* enable clock */
+
+	/* enable 32kHz source, determine sys_clk via gauging */
+
+	/* start time in 20 cycles */
+	start = 20 + readl(&s32k_base->s32k_cr);
+
+	/* dead loop till start time */
+	while (readl(&s32k_base->s32k_cr) < start);
+
+	/* get start sys_clk count */
+	cstart = readl(&gpt1_base->tcrr);
+
+	/* wait for 40 cycles */
+	while (readl(&s32k_base->s32k_cr) < (start + 20)) ;
+	cend = readl(&gpt1_base->tcrr);		/* get end sys_clk count */
+	cdiff = cend - cstart;			/* get elapsed ticks */
+
+	if (cdiv == 2)
+	{
+		cdiff *= 2;
+	}
+
+	/* based on number of ticks assign speed */
+	if (cdiff > 19000)
+		return S38_4M;
+	else if (cdiff > 15200)
+		return S26M;
+	else if (cdiff > 13000)
+		return S24M;
+	else if (cdiff > 9000)
+		return S19_2M;
+	else if (cdiff > 7600)
+		return S13M;
+	else
+		return S12M;
+}
+
+/******************************************************************************
+ * get_sys_clkin_sel() - returns the sys_clkin_sel field value based on
+ *                       input oscillator clock frequency.
+ *****************************************************************************/
+void get_sys_clkin_sel(u32 osc_clk, u32 *sys_clkin_sel)
+{
+	switch(osc_clk) {
+	case S38_4M:
+		*sys_clkin_sel = 4;
+		break;
+	case S26M:
+		*sys_clkin_sel = 3;
+		break;
+	case S19_2M:
+		*sys_clkin_sel = 2;
+		break;
+	case S13M:
+		*sys_clkin_sel = 1;
+		break;
+	case S12M:
+	default:
+		*sys_clkin_sel = 0;
+	}
+}
+
+/******************************************************************************
+ * prcm_init() - inits clocks for PRCM as defined in clocks.h
+ *               called from SRAM, or Flash (using temp SRAM stack).
+ *****************************************************************************/
+void prcm_init(void)
+{
+	void (*f_lock_pll) (u32, u32, u32, u32);
+	int xip_safe, p0, p1, p2, p3;
+	u32 osc_clk = 0, sys_clkin_sel;
+	u32 clk_index, sil_index = 0;
+	struct prm *prm_base = (struct prm *)PRM_BASE;
+	struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
+	dpll_param *dpll_param_p;
+
+	f_lock_pll = (void *) ((u32) &_end_vect - (u32) &_start +
+				SRAM_VECT_CODE);
+
+	xip_safe = is_running_in_sram();
+
+	/*
+	 * Gauge the input clock speed and find out the sys_clkin_sel
+	 * value corresponding to the input clock.
+	 */
+	osc_clk = get_osc_clk_speed();
+	get_sys_clkin_sel(osc_clk, &sys_clkin_sel);
+
+	/* set input crystal speed */
+	sr32(&prm_base->clksel, 0, 3, sys_clkin_sel);
+
+	/* If the input clock is greater than 19.2M always divide/2 */
+	if (sys_clkin_sel > 2) {
+		/* input clock divider */
+		sr32(&prm_base->clksrc_ctrl, 6, 2, 2);
+		clk_index = sys_clkin_sel / 2;
+	} else {
+		/* input clock divider */
+		sr32(&prm_base->clksrc_ctrl, 6, 2, 1);
+		clk_index = sys_clkin_sel;
+	}
+
+	/*
+	 * The DPLL tables are defined according to sysclk value and
+	 * silicon revision. The clk_index value will be used to get
+	 * the values for that input sysclk from the DPLL param table
+	 * and sil_index will get the values for that SysClk for the
+	 * appropriate silicon rev.
+	 */
+	if (get_cpu_rev())
+		sil_index = 1;
+
+	/* Unlock MPU DPLL (slows things down, and needed later) */
+	sr32(&prcm_base->clken_pll_mpu, 0, 3, PLL_LOW_POWER_BYPASS);
+	wait_on_value(ST_MPU_CLK, 0, &prcm_base->idlest_pll_mpu, LDELAY);
+
+	/* Getting the base address of Core DPLL param table */
+	dpll_param_p = (dpll_param *) get_core_dpll_param();
+
+	/* Moving it to the right sysclk and ES rev base */
+	dpll_param_p = dpll_param_p + 3 * clk_index + sil_index;
+	if (xip_safe) {
+		/*
+		 * CORE DPLL
+		 * sr32(CM_CLKSEL2_EMU) set override to work when asleep
+		 */
+		sr32(&prcm_base->clken_pll, 0, 3, PLL_FAST_RELOCK_BYPASS);
+		wait_on_value(ST_CORE_CLK, 0, &prcm_base->idlest_ckgen,
+				LDELAY);
+
+		/*
+		 * For OMAP3 ES1.0 Errata 1.50, default value directly doesn't
+		 * work. write another value and then default value.
+		 */
+
+		/* m3x2 */
+		sr32(&prcm_base->clksel1_emu, 16, 5, CORE_M3X2 + 1);
+		/* m3x2 */
+		sr32(&prcm_base->clksel1_emu, 16, 5, CORE_M3X2);
+		/* Set M2 */
+		sr32(&prcm_base->clksel1_pll, 27, 2, dpll_param_p->m2);
+		/* Set M */
+		sr32(&prcm_base->clksel1_pll, 16, 11, dpll_param_p->m);
+		/* Set N */
+		sr32(&prcm_base->clksel1_pll, 8, 7, dpll_param_p->n);
+		/* 96M Src */
+		sr32(&prcm_base->clksel1_pll, 6, 1, 0);
+		/* ssi */
+		sr32(&prcm_base->clksel_core, 8, 4, CORE_SSI_DIV);
+		/* fsusb */
+		sr32(&prcm_base->clksel_core, 4, 2, CORE_FUSB_DIV);
+		/* l4 */
+		sr32(&prcm_base->clksel_core, 2, 2, CORE_L4_DIV);
+		/* l3 */
+		sr32(&prcm_base->clksel_core, 0, 2, CORE_L3_DIV);
+		/* gfx */
+		sr32(&prcm_base->clksel_gfx, 0, 3, GFX_DIV);
+		/* reset mgr */
+		sr32(&prcm_base->clksel_wkup, 1, 2, WKUP_RSM);
+		/* FREQSEL */
+		sr32(&prcm_base->clken_pll, 4, 4, dpll_param_p->fsel);
+		/* lock mode */
+		sr32(&prcm_base->clken_pll, 0, 3, PLL_LOCK);
+
+		wait_on_value(ST_CORE_CLK, 1, &prcm_base->idlest_ckgen,
+				LDELAY);
+	} else if (is_running_in_flash()) {
+		/*
+		 * if running from flash, jump to small relocated code
+		 * area in SRAM.
+		 */
+		p0 = readl(&prcm_base->clken_pll);
+		sr32(&p0, 0, 3, PLL_FAST_RELOCK_BYPASS);
+		sr32(&p0, 4, 4, dpll_param_p->fsel);	/* FREQSEL */
+
+		p1 = readl(&prcm_base->clksel1_pll);
+		sr32(&p1, 27, 2, dpll_param_p->m2);	/* Set M2 */
+		sr32(&p1, 16, 11, dpll_param_p->m);	/* Set M */
+		sr32(&p1, 8, 7, dpll_param_p->n);		/* Set N */
+		sr32(&p1, 6, 1, 0);	/* set source for 96M */
+
+		p2 = readl(&prcm_base->clksel_core);
+		sr32(&p2, 8, 4, CORE_SSI_DIV);	/* ssi */
+		sr32(&p2, 4, 2, CORE_FUSB_DIV);	/* fsusb */
+		sr32(&p2, 2, 2, CORE_L4_DIV);	/* l4 */
+		sr32(&p2, 0, 2, CORE_L3_DIV);	/* l3 */
+
+		p3 = (u32)&prcm_base->idlest_ckgen;
+
+		(*f_lock_pll) (p0, p1, p2, p3);
+	}
+
+	/* PER DPLL */
+	sr32(&prcm_base->clken_pll, 16, 3, PLL_STOP);
+	wait_on_value(ST_PERIPH_CLK, 0, &prcm_base->idlest_ckgen, LDELAY);
+
+	/* Getting the base address to PER DPLL param table */
+
+	/* Set N */
+	dpll_param_p = (dpll_param *) get_per_dpll_param();
+
+	/* Moving it to the right sysclk base */
+	dpll_param_p = dpll_param_p + clk_index;
+
+	/*
+	 * Errata 1.50 Workaround for OMAP3 ES1.0 only
+	 * If using default divisors, write default divisor + 1
+	 * and then the actual divisor value
+	 */
+	sr32(&prcm_base->clksel1_emu, 24, 5, PER_M6X2 + 1);	/* set M6 */
+	sr32(&prcm_base->clksel1_emu, 24, 5, PER_M6X2);		/* set M6 */
+	sr32(&prcm_base->clksel_cam, 0, 5, PER_M5X2 + 1);	/* set M5 */
+	sr32(&prcm_base->clksel_cam, 0, 5, PER_M5X2);		/* set M5 */
+	sr32(&prcm_base->clksel_dss, 0, 5, PER_M4X2 + 1);	/* set M4 */
+	sr32(&prcm_base->clksel_dss, 0, 5, PER_M4X2);		/* set M4 */
+	sr32(&prcm_base->clksel_dss, 8, 5, PER_M3X2 + 1);	/* set M3 */
+	sr32(&prcm_base->clksel_dss, 8, 5, PER_M3X2);		/* set M3 */
+	sr32(&prcm_base->clksel3_pll, 0, 5, dpll_param_p->m2 + 1); /* set M2 */
+	sr32(&prcm_base->clksel3_pll, 0, 5, dpll_param_p->m2);	/* set M2 */
+	/* Workaround end */
+
+	sr32(&prcm_base->clksel2_pll, 8, 11, dpll_param_p->m);	/* set m */
+	sr32(&prcm_base->clksel2_pll, 0, 7, dpll_param_p->n);	/* set n */
+	sr32(&prcm_base->clken_pll, 20, 4, dpll_param_p->fsel);	/* FREQSEL */
+	sr32(&prcm_base->clken_pll, 16, 3, PLL_LOCK);		/* lock mode */
+	wait_on_value(ST_PERIPH_CLK, 2, &prcm_base->idlest_ckgen, LDELAY);
+
+	/* Getting the base address to MPU DPLL param table */
+	dpll_param_p = (dpll_param *) get_mpu_dpll_param();
+
+	/* Moving it to the right sysclk and ES rev base */
+	dpll_param_p = dpll_param_p + 3 * clk_index + sil_index;
+
+	/* MPU DPLL (unlocked already) */
+
+	/* Set M2 */
+	sr32(&prcm_base->clksel2_pll_mpu, 0, 5, dpll_param_p->m2);
+	/* Set M */
+	sr32(&prcm_base->clksel1_pll_mpu, 8, 11, dpll_param_p->m);
+	/* Set N */
+	sr32(&prcm_base->clksel1_pll_mpu, 0, 7, dpll_param_p->n);
+	/* FREQSEL */
+	sr32(&prcm_base->clken_pll_mpu, 4, 4, dpll_param_p->fsel);
+	/* lock mode */
+	sr32(&prcm_base->clken_pll_mpu, 0, 3, PLL_LOCK);
+	wait_on_value(ST_MPU_CLK, 1, &prcm_base->idlest_pll_mpu, LDELAY);
+
+	/* Getting the base address to IVA DPLL param table */
+	dpll_param_p = (dpll_param *) get_iva_dpll_param();
+
+	/* Moving it to the right sysclk and ES rev base */
+	dpll_param_p = dpll_param_p + 3 * clk_index + sil_index;
+
+	/* IVA DPLL (set to 12*20=240MHz) */
+	sr32(&prcm_base->clken_pll_iva2, 0, 3, PLL_STOP);
+	wait_on_value(ST_IVA2_CLK, 0, &prcm_base->idlest_pll_iva2, LDELAY);
+	/* set M2 */
+	sr32(&prcm_base->clksel2_pll_iva2, 0, 5, dpll_param_p->m2);
+	/* set M */
+	sr32(&prcm_base->clksel1_pll_iva2, 8, 11, dpll_param_p->m);
+	/* set N */
+	sr32(&prcm_base->clksel1_pll_iva2, 0, 7, dpll_param_p->n);
+	/* FREQSEL */
+	sr32(&prcm_base->clken_pll_iva2, 4, 4, dpll_param_p->fsel);
+	/* lock mode */
+	sr32(&prcm_base->clken_pll_iva2, 0, 3, PLL_LOCK);
+	wait_on_value(ST_IVA2_CLK, 1, &prcm_base->idlest_pll_iva2, LDELAY);
+
+	/* Set up GPTimers to sys_clk source only */
+	sr32(&prcm_base->clksel_per, 0, 8, 0xff);
+	sr32(&prcm_base->clksel_wkup, 0, 1, 1);
+
+	sdelay(5000);
+}
+
+/******************************************************************************
+ * peripheral_enable() - Enable the clks & power for perifs (GPT2, UART1,...)
+ *****************************************************************************/
+void per_clocks_enable(void)
+{
+	struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
+
+	/* Enable GP2 timer. */
+	sr32(&prcm_base->clksel_per, 0, 1, 0x1);	/* GPT2 = sys clk */
+	sr32(&prcm_base->iclken_per, 3, 1, 0x1);	/* ICKen GPT2 */
+	sr32(&prcm_base->fclken_per, 3, 1, 0x1);	/* FCKen GPT2 */
+
+#ifdef CONFIG_SYS_NS16550
+	/* Enable UART1 clocks */
+	sr32(&prcm_base->fclken1_core, 13, 1, 0x1);
+	sr32(&prcm_base->iclken1_core, 13, 1, 0x1);
+
+	/* UART 3 Clocks */
+	sr32(&prcm_base->fclken_per, 11, 1, 0x1);
+	sr32(&prcm_base->iclken_per, 11, 1, 0x1);
+#endif
+
+#ifdef CONFIG_OMAP3_GPIO_2
+	sr32(&prcm_base->fclken_per, 13, 1, 1);
+	sr32(&prcm_base->iclken_per, 13, 1, 1);
+#endif
+#ifdef CONFIG_OMAP3_GPIO_3
+	sr32(&prcm_base->fclken_per, 14, 1, 1);
+	sr32(&prcm_base->iclken_per, 14, 1, 1);
+#endif
+#ifdef CONFIG_OMAP3_GPIO_4
+	sr32(&prcm_base->fclken_per, 15, 1, 1);
+	sr32(&prcm_base->iclken_per, 15, 1, 1);
+#endif
+#ifdef CONFIG_OMAP3_GPIO_5
+	sr32(&prcm_base->fclken_per, 16, 1, 1);
+	sr32(&prcm_base->iclken_per, 16, 1, 1);
+#endif
+#ifdef CONFIG_OMAP3_GPIO_6
+	sr32(&prcm_base->fclken_per, 17, 1, 1);
+	sr32(&prcm_base->iclken_per, 17, 1, 1);
+#endif
+
+#ifdef CONFIG_DRIVER_OMAP34XX_I2C
+	/* Turn on all 3 I2C clocks */
+	sr32(&prcm_base->fclken1_core, 15, 3, 0x7);
+	sr32(&prcm_base->iclken1_core, 15, 3, 0x7);	/* I2C1,2,3 = on */
+#endif
+	/* Enable the ICLK for 32K Sync Timer as its used in udelay */
+	sr32(&prcm_base->iclken_wkup, 2, 1, 0x1);
+
+	sr32(&prcm_base->fclken_iva2, 0, 32, FCK_IVA2_ON);
+	sr32(&prcm_base->fclken1_core, 0, 32, FCK_CORE1_ON);
+	sr32(&prcm_base->iclken1_core, 0, 32, ICK_CORE1_ON);
+	sr32(&prcm_base->iclken2_core, 0, 32, ICK_CORE2_ON);
+	sr32(&prcm_base->fclken_wkup, 0, 32, FCK_WKUP_ON);
+	sr32(&prcm_base->iclken_wkup, 0, 32, ICK_WKUP_ON);
+	sr32(&prcm_base->fclken_dss, 0, 32, FCK_DSS_ON);
+	sr32(&prcm_base->iclken_dss, 0, 32, ICK_DSS_ON);
+	sr32(&prcm_base->fclken_cam, 0, 32, FCK_CAM_ON);
+	sr32(&prcm_base->iclken_cam, 0, 32, ICK_CAM_ON);
+	sr32(&prcm_base->fclken_per, 0, 32, FCK_PER_ON);
+	sr32(&prcm_base->iclken_per, 0, 32, ICK_PER_ON);
+
+	sdelay(1000);
+}
diff --git a/arch/arm/cpu/armv7/omap3/emif4.c b/arch/arm/cpu/armv7/omap3/emif4.c
new file mode 100644
index 000000000..fae5b1161
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap3/emif4.c
@@ -0,0 +1,168 @@
+/*
+ * Author :
+ *     Vaibhav Hiremath <hvaibhav@ti.com>
+ *
+ * Based on mem.c and sdrc.c
+ *
+ * Copyright (C) 2010
+ * Texas Instruments Incorporated - http://www.ti.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 <common.h>
+#include <asm/io.h>
+#include <asm/arch/mem.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/emif4.h>
+
+extern omap3_sysinfo sysinfo;
+
+static emif4_t *emif4_base = (emif4_t *)OMAP34XX_SDRC_BASE;
+
+/*
+ * is_mem_sdr -
+ *  - Return 1 if mem type in use is SDR
+ */
+u32 is_mem_sdr(void)
+{
+	return 0;
+}
+
+/*
+ * get_sdr_cs_size -
+ *  - Get size of chip select 0/1
+ */
+u32 get_sdr_cs_size(u32 cs)
+{
+	u32 size;
+
+	/* TODO: Calculate the size based on EMIF4 configuration */
+	size = CONFIG_SYS_CS0_SIZE;
+
+	return size;
+}
+
+/*
+ * get_sdr_cs_offset -
+ *  - Get offset of cs from cs0 start
+ */
+u32 get_sdr_cs_offset(u32 cs)
+{
+	u32 offset = 0;
+
+	return offset;
+}
+
+/*
+ * do_emif4_init -
+ *  - Init the emif4 module for DDR access
+ *  - Early init routines, called from flash or SRAM.
+ */
+void do_emif4_init(void)
+{
+	unsigned int regval;
+	/* Set the DDR PHY parameters in PHY ctrl registers */
+	regval = (EMIF4_DDR1_READ_LAT | EMIF4_DDR1_PWRDN_DIS |
+		EMIF4_DDR1_EXT_STRB_DIS);
+	writel(regval, &emif4_base->ddr_phyctrl1);
+	writel(regval, &emif4_base->ddr_phyctrl1_shdw);
+	writel(0, &emif4_base->ddr_phyctrl2);
+
+	/* Reset the DDR PHY and wait till completed */
+	regval = readl(&emif4_base->sdram_iodft_tlgc);
+	regval |= (1<<10);
+	writel(regval, &emif4_base->sdram_iodft_tlgc);
+	/*Wait till that bit clears*/
+	while ((readl(&emif4_base->sdram_iodft_tlgc) & (1<<10)) == 0x1);
+	/*Re-verify the DDR PHY status*/
+	while ((readl(&emif4_base->sdram_sts) & (1<<2)) == 0x0);
+
+	regval |= (1<<0);
+	writel(regval, &emif4_base->sdram_iodft_tlgc);
+	/* Set SDR timing registers */
+	regval = (EMIF4_TIM1_T_WTR | EMIF4_TIM1_T_RRD |
+		EMIF4_TIM1_T_RC | EMIF4_TIM1_T_RAS |
+		EMIF4_TIM1_T_WR | EMIF4_TIM1_T_RCD |
+		EMIF4_TIM1_T_RP);
+	writel(regval, &emif4_base->sdram_time1);
+	writel(regval, &emif4_base->sdram_time1_shdw);
+
+	regval = (EMIF4_TIM2_T_CKE | EMIF4_TIM2_T_RTP |
+		EMIF4_TIM2_T_XSRD | EMIF4_TIM2_T_XSNR |
+		EMIF4_TIM2_T_ODT | EMIF4_TIM2_T_XP);
+	writel(regval, &emif4_base->sdram_time2);
+	writel(regval, &emif4_base->sdram_time2_shdw);
+
+	regval = (EMIF4_TIM3_T_RAS_MAX | EMIF4_TIM3_T_RFC);
+	writel(regval, &emif4_base->sdram_time3);
+	writel(regval, &emif4_base->sdram_time3_shdw);
+
+	/* Set the PWR control register */
+	regval = (EMIF4_PWR_PM_TIM | EMIF4_PWR_LP_MODE |
+		EMIF4_PWR_DPD_DIS | EMIF4_PWR_IDLE_MODE);
+	writel(regval, &emif4_base->sdram_pwr_mgmt);
+	writel(regval, &emif4_base->sdram_pwr_mgmt_shdw);
+
+	/* Set the DDR refresh rate control register */
+	regval = (EMIF4_REFRESH_RATE | EMIF4_INITREF_DIS);
+	writel(regval, &emif4_base->sdram_refresh_ctrl);
+	writel(regval, &emif4_base->sdram_refresh_ctrl_shdw);
+
+	/* set the SDRAM configuration register */
+	regval = (EMIF4_CFG_PGSIZE | EMIF4_CFG_EBANK |
+		EMIF4_CFG_IBANK | EMIF4_CFG_ROWSIZE |
+		EMIF4_CFG_CL | EMIF4_CFG_NARROW_MD |
+		EMIF4_CFG_SDR_DRV | EMIF4_CFG_DDR_DIS_DLL |
+		EMIF4_CFG_DDR2_DDQS | EMIF4_CFG_DDR_TERM |
+		EMIF4_CFG_IBANK_POS | EMIF4_CFG_SDRAM_TYP);
+	writel(regval, &emif4_base->sdram_config);
+}
+
+/*
+ * dram_init -
+ *  - Sets uboots idea of sdram size
+ */
+int dram_init(void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+	unsigned int size0 = 0, size1 = 0;
+
+	size0 = get_sdr_cs_size(CS0);
+	/*
+	 * If a second bank of DDR is attached to CS1 this is
+	 * where it can be started.  Early init code will init
+	 * memory on CS0.
+	 */
+	if ((sysinfo.mtype == DDR_COMBO) || (sysinfo.mtype == DDR_STACKED))
+		size1 = get_sdr_cs_size(CS1);
+
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[0].size = size0;
+	gd->bd->bi_dram[1].start = PHYS_SDRAM_1 + get_sdr_cs_offset(CS1);
+	gd->bd->bi_dram[1].size = size1;
+
+	return 0;
+}
+
+/*
+ * mem_init() -
+ *  - Initialize memory subsystem
+ */
+void mem_init(void)
+{
+	do_emif4_init();
+}
diff --git a/arch/arm/cpu/armv7/omap3/gpio.c b/arch/arm/cpu/armv7/omap3/gpio.c
new file mode 100644
index 000000000..aeb6066d8
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap3/gpio.c
@@ -0,0 +1,185 @@
+/*
+ * Copyright (c) 2009 Wind River Systems, Inc.
+ * Tom Rix <Tom.Rix@windriver.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
+ *
+ * This work is derived from the linux 2.6.27 kernel source
+ * To fetch, use the kernel repository
+ * git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
+ * Use the v2.6.27 tag.
+ *
+ * Below is the original's header including its copyright
+ *
+ *  linux/arch/arm/plat-omap/gpio.c
+ *
+ * Support functions for OMAP GPIO
+ *
+ * Copyright (C) 2003-2005 Nokia Corporation
+ * Written by Juha Yrjölä <juha.yrjola@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <common.h>
+#include <asm/arch/gpio.h>
+#include <asm/io.h>
+#include <asm/errno.h>
+
+static struct gpio_bank gpio_bank_34xx[6] = {
+	{ (void *)OMAP34XX_GPIO1_BASE, METHOD_GPIO_24XX },
+	{ (void *)OMAP34XX_GPIO2_BASE, METHOD_GPIO_24XX },
+	{ (void *)OMAP34XX_GPIO3_BASE, METHOD_GPIO_24XX },
+	{ (void *)OMAP34XX_GPIO4_BASE, METHOD_GPIO_24XX },
+	{ (void *)OMAP34XX_GPIO5_BASE, METHOD_GPIO_24XX },
+	{ (void *)OMAP34XX_GPIO6_BASE, METHOD_GPIO_24XX },
+};
+
+static struct gpio_bank *gpio_bank = &gpio_bank_34xx[0];
+
+static inline struct gpio_bank *get_gpio_bank(int gpio)
+{
+	return &gpio_bank[gpio >> 5];
+}
+
+static inline int get_gpio_index(int gpio)
+{
+	return gpio & 0x1f;
+}
+
+static inline int gpio_valid(int gpio)
+{
+	if (gpio < 0)
+		return -1;
+	if (gpio < 192)
+		return 0;
+	return -1;
+}
+
+static int check_gpio(int gpio)
+{
+	if (gpio_valid(gpio) < 0) {
+		printf("ERROR : check_gpio: invalid GPIO %d\n", gpio);
+		return -1;
+	}
+	return 0;
+}
+
+static void _set_gpio_direction(struct gpio_bank *bank, int gpio, int is_input)
+{
+	void *reg = bank->base;
+	u32 l;
+
+	switch (bank->method) {
+	case METHOD_GPIO_24XX:
+		reg += OMAP24XX_GPIO_OE;
+		break;
+	default:
+		return;
+	}
+	l = __raw_readl(reg);
+	if (is_input)
+		l |= 1 << gpio;
+	else
+		l &= ~(1 << gpio);
+	__raw_writel(l, reg);
+}
+
+void omap_set_gpio_direction(int gpio, int is_input)
+{
+	struct gpio_bank *bank;
+
+	if (check_gpio(gpio) < 0)
+		return;
+	bank = get_gpio_bank(gpio);
+	_set_gpio_direction(bank, get_gpio_index(gpio), is_input);
+}
+
+static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable)
+{
+	void *reg = bank->base;
+	u32 l = 0;
+
+	switch (bank->method) {
+	case METHOD_GPIO_24XX:
+		if (enable)
+			reg += OMAP24XX_GPIO_SETDATAOUT;
+		else
+			reg += OMAP24XX_GPIO_CLEARDATAOUT;
+		l = 1 << gpio;
+		break;
+	default:
+		printf("omap3-gpio unknown bank method %s %d\n",
+		       __FILE__, __LINE__);
+		return;
+	}
+	__raw_writel(l, reg);
+}
+
+void omap_set_gpio_dataout(int gpio, int enable)
+{
+	struct gpio_bank *bank;
+
+	if (check_gpio(gpio) < 0)
+		return;
+	bank = get_gpio_bank(gpio);
+	_set_gpio_dataout(bank, get_gpio_index(gpio), enable);
+}
+
+int omap_get_gpio_datain(int gpio)
+{
+	struct gpio_bank *bank;
+	void *reg;
+
+	if (check_gpio(gpio) < 0)
+		return -EINVAL;
+	bank = get_gpio_bank(gpio);
+	reg = bank->base;
+	switch (bank->method) {
+	case METHOD_GPIO_24XX:
+		reg += OMAP24XX_GPIO_DATAIN;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return (__raw_readl(reg)
+			& (1 << get_gpio_index(gpio))) != 0;
+}
+
+static void _reset_gpio(struct gpio_bank *bank, int gpio)
+{
+	_set_gpio_direction(bank, get_gpio_index(gpio), 1);
+}
+
+int omap_request_gpio(int gpio)
+{
+	if (check_gpio(gpio) < 0)
+		return -EINVAL;
+
+	return 0;
+}
+
+void omap_free_gpio(int gpio)
+{
+	struct gpio_bank *bank;
+
+	if (check_gpio(gpio) < 0)
+		return;
+	bank = get_gpio_bank(gpio);
+
+	_reset_gpio(bank, gpio);
+}
diff --git a/arch/arm/cpu/armv7/omap3/lowlevel_init.S b/arch/arm/cpu/armv7/omap3/lowlevel_init.S
new file mode 100644
index 000000000..73063ec8e
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap3/lowlevel_init.S
@@ -0,0 +1,361 @@
+/*
+ * Board specific setup info
+ *
+ * (C) Copyright 2008
+ * Texas Instruments, <www.ti.com>
+ *
+ * Initial Code by:
+ * Richard Woodruff <r-woodruff2@ti.com>
+ * Syed Mohammed Khasim <khasim@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 <config.h>
+#include <version.h>
+#include <asm/arch/mem.h>
+#include <asm/arch/clocks_omap3.h>
+
+_TEXT_BASE:
+	.word	TEXT_BASE	/* sdram load addr from config.mk */
+
+#if !defined(CONFIG_SYS_NAND_BOOT) && !defined(CONFIG_SYS_NAND_BOOT)
+/**************************************************************************
+ * cpy_clk_code: relocates clock code into SRAM where its safer to execute
+ * R1 = SRAM destination address.
+ *************************************************************************/
+.global cpy_clk_code
+ cpy_clk_code:
+	/* Copy DPLL code into SRAM */
+	adr	r0, go_to_speed		/* get addr of clock setting code */
+	mov	r2, #384		/* r2 size to copy (div by 32 bytes) */
+	mov	r1, r1			/* r1 <- dest address (passed in) */
+	add	r2, r2, r0		/* r2 <- source end address */
+next2:
+	ldmia	r0!, {r3 - r10}		/* copy from source address [r0] */
+	stmia	r1!, {r3 - r10}		/* copy to   target address [r1] */
+	cmp	r0, r2			/* until source end address [r2] */
+	bne	next2
+	mov	pc, lr			/* back to caller */
+
+/* ***************************************************************************
+ *  go_to_speed: -Moves to bypass, -Commits clock dividers, -puts dpll at speed
+ *               -executed from SRAM.
+ *  R0 = CM_CLKEN_PLL-bypass value
+ *  R1 = CM_CLKSEL1_PLL-m, n, and divider values
+ *  R2 = CM_CLKSEL_CORE-divider values
+ *  R3 = CM_IDLEST_CKGEN - addr dpll lock wait
+ *
+ *  Note: If core unlocks/relocks and SDRAM is running fast already it gets
+ *        confused.  A reset of the controller gets it back.  Taking away its
+ *        L3 when its not in self refresh seems bad for it.  Normally, this
+ *	  code runs from flash before SDR is init so that should be ok.
+ ****************************************************************************/
+.global go_to_speed
+ go_to_speed:
+	stmfd sp!, {r4 - r6}
+
+	/* move into fast relock bypass */
+	ldr	r4, pll_ctl_add
+	str	r0, [r4]
+wait1:
+	ldr	r5, [r3]		/* get status */
+	and	r5, r5, #0x1		/* isolate core status */
+	cmp	r5, #0x1		/* still locked? */
+	beq	wait1			/* if lock, loop */
+
+	/* set new dpll dividers _after_ in bypass */
+	ldr	r5, pll_div_add1
+	str	r1, [r5]		/* set m, n, m2 */
+	ldr	r5, pll_div_add2
+	str	r2, [r5]		/* set l3/l4/.. dividers*/
+	ldr	r5, pll_div_add3	/* wkup */
+	ldr	r2, pll_div_val3	/* rsm val */
+	str	r2, [r5]
+	ldr	r5, pll_div_add4	/* gfx */
+	ldr	r2, pll_div_val4
+	str	r2, [r5]
+	ldr	r5, pll_div_add5	/* emu */
+	ldr	r2, pll_div_val5
+	str	r2, [r5]
+
+	/* now prepare GPMC (flash) for new dpll speed */
+	/* flash needs to be stable when we jump back to it */
+	ldr	r5, flash_cfg3_addr
+	ldr	r2, flash_cfg3_val
+	str	r2, [r5]
+	ldr	r5, flash_cfg4_addr
+	ldr	r2, flash_cfg4_val
+	str	r2, [r5]
+	ldr	r5, flash_cfg5_addr
+	ldr	r2, flash_cfg5_val
+	str	r2, [r5]
+	ldr	r5, flash_cfg1_addr
+	ldr	r2, [r5]
+	orr	r2, r2, #0x3		/* up gpmc divider */
+	str	r2, [r5]
+
+	/* lock DPLL3 and wait a bit */
+	orr	r0, r0, #0x7	/* set up for lock mode */
+	str	r0, [r4]	/* lock */
+	nop			/* ARM slow at this point working at sys_clk */
+	nop
+	nop
+	nop
+wait2:
+	ldr	r5, [r3]	/* get status */
+	and	r5, r5, #0x1	/* isolate core status */
+	cmp	r5, #0x1	/* still locked? */
+	bne	wait2		/* if lock, loop */
+	nop
+	nop
+	nop
+	nop
+	ldmfd	sp!, {r4 - r6}
+	mov	pc, lr		/* back to caller, locked */
+
+_go_to_speed: .word go_to_speed
+
+/* these constants need to be close for PIC code */
+/* The Nor has to be in the Flash Base CS0 for this condition to happen */
+flash_cfg1_addr:
+	.word (GPMC_CONFIG_CS0_BASE + GPMC_CONFIG1)
+flash_cfg3_addr:
+	.word (GPMC_CONFIG_CS0_BASE + GPMC_CONFIG3)
+flash_cfg3_val:
+	.word STNOR_GPMC_CONFIG3
+flash_cfg4_addr:
+	.word (GPMC_CONFIG_CS0_BASE + GPMC_CONFIG4)
+flash_cfg4_val:
+	.word STNOR_GPMC_CONFIG4
+flash_cfg5_val:
+	.word STNOR_GPMC_CONFIG5
+flash_cfg5_addr:
+	.word (GPMC_CONFIG_CS0_BASE + GPMC_CONFIG5)
+pll_ctl_add:
+	.word CM_CLKEN_PLL
+pll_div_add1:
+	.word CM_CLKSEL1_PLL
+pll_div_add2:
+	.word CM_CLKSEL_CORE
+pll_div_add3:
+	.word CM_CLKSEL_WKUP
+pll_div_val3:
+	.word (WKUP_RSM << 1)
+pll_div_add4:
+	.word CM_CLKSEL_GFX
+pll_div_val4:
+	.word (GFX_DIV << 0)
+pll_div_add5:
+	.word CM_CLKSEL1_EMU
+pll_div_val5:
+	.word CLSEL1_EMU_VAL
+
+#endif
+
+.globl lowlevel_init
+lowlevel_init:
+	ldr	sp, SRAM_STACK
+	str	ip, [sp]	/* stash old link register */
+	mov	ip, lr		/* save link reg across call */
+	bl	s_init		/* go setup pll, mux, memory */
+	ldr	ip, [sp]	/* restore save ip */
+	mov	lr, ip		/* restore link reg */
+
+	/* back to arch calling code */
+	mov	pc, lr
+
+	/* the literal pools origin */
+	.ltorg
+
+REG_CONTROL_STATUS:
+	.word CONTROL_STATUS
+SRAM_STACK:
+	.word LOW_LEVEL_SRAM_STACK
+
+/* DPLL(1-4) PARAM TABLES */
+
+/*
+ * Each of the tables has M, N, FREQSEL, M2 values defined for nominal
+ * OPP (1.2V). The fields are defined according to dpll_param struct (clock.c).
+ * The values are defined for all possible sysclk and for ES1 and ES2.
+ */
+
+mpu_dpll_param:
+/* 12MHz */
+/* ES1 */
+.word MPU_M_12_ES1, MPU_N_12_ES1, MPU_FSEL_12_ES1, MPU_M2_12_ES1
+/* ES2 */
+.word MPU_M_12_ES2, MPU_N_12_ES2, MPU_FSEL_12_ES2, MPU_M2_ES2
+/* 3410 */
+.word MPU_M_12, MPU_N_12, MPU_FSEL_12, MPU_M2_12
+
+/* 13MHz */
+/* ES1 */
+.word MPU_M_13_ES1, MPU_N_13_ES1, MPU_FSEL_13_ES1, MPU_M2_13_ES1
+/* ES2 */
+.word MPU_M_13_ES2, MPU_N_13_ES2, MPU_FSEL_13_ES2, MPU_M2_13_ES2
+/* 3410 */
+.word MPU_M_13, MPU_N_13, MPU_FSEL_13, MPU_M2_13
+
+/* 19.2MHz */
+/* ES1 */
+.word MPU_M_19P2_ES1, MPU_N_19P2_ES1, MPU_FSEL_19P2_ES1, MPU_M2_19P2_ES1
+/* ES2 */
+.word MPU_M_19P2_ES2, MPU_N_19P2_ES2, MPU_FSEL_19P2_ES2, MPU_M2_19P2_ES2
+/* 3410 */
+.word MPU_M_19P2, MPU_N_19P2, MPU_FSEL_19P2, MPU_M2_19P2
+
+/* 26MHz */
+/* ES1 */
+.word MPU_M_26_ES1, MPU_N_26_ES1, MPU_FSEL_26_ES1, MPU_M2_26_ES1
+/* ES2 */
+.word MPU_M_26_ES2, MPU_N_26_ES2, MPU_FSEL_26_ES2, MPU_M2_26_ES2
+/* 3410 */
+.word MPU_M_26, MPU_N_26, MPU_FSEL_26, MPU_M2_26
+
+/* 38.4MHz */
+/* ES1 */
+.word MPU_M_38P4_ES1, MPU_N_38P4_ES1, MPU_FSEL_38P4_ES1, MPU_M2_38P4_ES1
+/* ES2 */
+.word MPU_M_38P4_ES2, MPU_N_38P4_ES2, MPU_FSEL_38P4_ES2, MPU_M2_38P4_ES2
+/* 3410 */
+.word MPU_M_38P4, MPU_N_38P4, MPU_FSEL_38P4, MPU_M2_38P4
+
+
+.globl get_mpu_dpll_param
+get_mpu_dpll_param:
+	adr	r0, mpu_dpll_param
+	mov	pc, lr
+
+iva_dpll_param:
+/* 12MHz */
+/* ES1 */
+.word IVA_M_12_ES1, IVA_N_12_ES1, IVA_FSEL_12_ES1, IVA_M2_12_ES1
+/* ES2 */
+.word IVA_M_12_ES2, IVA_N_12_ES2, IVA_FSEL_12_ES2, IVA_M2_12_ES2
+/* 3410 */
+.word IVA_M_12, IVA_N_12, IVA_FSEL_12, IVA_M2_12
+
+/* 13MHz */
+/* ES1 */
+.word IVA_M_13_ES1, IVA_N_13_ES1, IVA_FSEL_13_ES1, IVA_M2_13_ES1
+/* ES2 */
+.word IVA_M_13_ES2, IVA_N_13_ES2,  IVA_FSEL_13_ES2, IVA_M2_13_ES2
+/* 3410 */
+.word IVA_M_13, IVA_N_13, IVA_FSEL_13, IVA_M2_13
+
+/* 19.2MHz */
+/* ES1 */
+.word IVA_M_19P2_ES1, IVA_N_19P2_ES1, IVA_FSEL_19P2_ES1, IVA_M2_19P2_ES1
+/* ES2 */
+.word IVA_M_19P2_ES2, IVA_N_19P2_ES2, IVA_FSEL_19P2_ES2, IVA_M2_19P2_ES2
+/* 3410 */
+.word IVA_M_19P2, IVA_N_19P2, IVA_FSEL_19P2, IVA_M2_19P2
+
+/* 26MHz */
+/* ES1 */
+.word IVA_M_26_ES1, IVA_N_26_ES1, IVA_FSEL_26_ES1, IVA_M2_26_ES1
+/* ES2 */
+.word IVA_M_26_ES2, IVA_N_26_ES2, IVA_FSEL_26_ES2, IVA_M2_26_ES2
+/* 3410 */
+.word IVA_M_26, IVA_N_26, IVA_FSEL_26, IVA_M2_26
+
+/* 38.4MHz */
+/* ES1 */
+.word IVA_M_38P4_ES1, IVA_N_38P4_ES1, IVA_FSEL_38P4_ES1, IVA_M2_38P4_ES1
+/* ES2 */
+.word IVA_M_38P4_ES2, IVA_N_38P4_ES2, IVA_FSEL_38P4_ES2, IVA_M2_38P4_ES2
+/* 3410 */
+.word IVA_M_38P4, IVA_N_38P4, IVA_FSEL_38P4, IVA_M2_38P4
+
+
+.globl get_iva_dpll_param
+get_iva_dpll_param:
+	adr	r0, iva_dpll_param
+	mov	pc, lr
+
+/* Core DPLL targets for L3 at 166 & L133 */
+core_dpll_param:
+/* 12MHz */
+/* ES1 */
+.word CORE_M_12_ES1, CORE_N_12_ES1, CORE_FSL_12_ES1, CORE_M2_12_ES1
+/* ES2 */
+.word CORE_M_12, CORE_N_12, CORE_FSEL_12, CORE_M2_12
+/* 3410 */
+.word CORE_M_12, CORE_N_12, CORE_FSEL_12, CORE_M2_12
+
+/* 13MHz */
+/* ES1 */
+.word CORE_M_13_ES1, CORE_N_13_ES1, CORE_FSL_13_ES1, CORE_M2_13_ES1
+/* ES2 */
+.word CORE_M_13, CORE_N_13, CORE_FSEL_13, CORE_M2_13
+/* 3410 */
+.word CORE_M_13, CORE_N_13, CORE_FSEL_13, CORE_M2_13
+
+/* 19.2MHz */
+/* ES1 */
+.word CORE_M_19P2_ES1, CORE_N_19P2_ES1, CORE_FSL_19P2_ES1, CORE_M2_19P2_ES1
+/* ES2 */
+.word CORE_M_19P2, CORE_N_19P2, CORE_FSEL_19P2, CORE_M2_19P2
+/* 3410 */
+.word CORE_M_19P2, CORE_N_19P2, CORE_FSEL_19P2, CORE_M2_19P2
+
+/* 26MHz */
+/* ES1 */
+.word CORE_M_26_ES1, CORE_N_26_ES1, CORE_FSL_26_ES1, CORE_M2_26_ES1
+/* ES2 */
+.word CORE_M_26, CORE_N_26, CORE_FSEL_26, CORE_M2_26
+/* 3410 */
+.word CORE_M_26, CORE_N_26, CORE_FSEL_26, CORE_M2_26
+
+/* 38.4MHz */
+/* ES1 */
+.word CORE_M_38P4_ES1, CORE_N_38P4_ES1, CORE_FSL_38P4_ES1, CORE_M2_38P4_ES1
+/* ES2 */
+.word CORE_M_38P4, CORE_N_38P4, CORE_FSEL_38P4, CORE_M2_38P4
+/* 3410 */
+.word CORE_M_38P4, CORE_N_38P4, CORE_FSEL_38P4, CORE_M2_38P4
+
+.globl get_core_dpll_param
+get_core_dpll_param:
+	adr	r0, core_dpll_param
+	mov	pc, lr
+
+/* PER DPLL values are same for both ES1 and ES2 */
+per_dpll_param:
+/* 12MHz */
+.word PER_M_12, PER_N_12, PER_FSEL_12, PER_M2_12
+
+/* 13MHz */
+.word PER_M_13, PER_N_13, PER_FSEL_13, PER_M2_13
+
+/* 19.2MHz */
+.word PER_M_19P2, PER_N_19P2, PER_FSEL_19P2, PER_M2_19P2
+
+/* 26MHz */
+.word PER_M_26, PER_N_26, PER_FSEL_26, PER_M2_26
+
+/* 38.4MHz */
+.word PER_M_38P4, PER_N_38P4, PER_FSEL_38P4, PER_M2_38P4
+
+.globl get_per_dpll_param
+get_per_dpll_param:
+	adr	r0, per_dpll_param
+	mov	pc, lr
diff --git a/arch/arm/cpu/armv7/omap3/mem.c b/arch/arm/cpu/armv7/omap3/mem.c
new file mode 100644
index 000000000..bd914b0ee
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap3/mem.c
@@ -0,0 +1,191 @@
+/*
+ * (C) Copyright 2008
+ * Texas Instruments, <www.ti.com>
+ *
+ * Author :
+ *     Manikandan Pillai <mani.pillai@ti.com>
+ *
+ * Initial Code from:
+ *     Richard Woodruff <r-woodruff2@ti.com>
+ *     Syed Mohammed Khasim <khasim@ti.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 <common.h>
+#include <asm/io.h>
+#include <asm/arch/mem.h>
+#include <asm/arch/sys_proto.h>
+#include <command.h>
+
+/*
+ * Only One NAND allowed on board at a time.
+ * The GPMC CS Base for the same
+ */
+unsigned int boot_flash_base;
+unsigned int boot_flash_off;
+unsigned int boot_flash_sec;
+unsigned int boot_flash_type;
+volatile unsigned int boot_flash_env_addr;
+
+struct gpmc *gpmc_cfg;
+
+#if defined(CONFIG_CMD_NAND)
+static const u32 gpmc_m_nand[GPMC_MAX_REG] = {
+	M_NAND_GPMC_CONFIG1,
+	M_NAND_GPMC_CONFIG2,
+	M_NAND_GPMC_CONFIG3,
+	M_NAND_GPMC_CONFIG4,
+	M_NAND_GPMC_CONFIG5,
+	M_NAND_GPMC_CONFIG6, 0
+};
+
+#if defined(CONFIG_ENV_IS_IN_NAND)
+#define GPMC_CS 0
+#else
+#define GPMC_CS 1
+#endif
+
+#endif
+
+#if defined(CONFIG_CMD_ONENAND)
+static const u32 gpmc_onenand[GPMC_MAX_REG] = {
+	ONENAND_GPMC_CONFIG1,
+	ONENAND_GPMC_CONFIG2,
+	ONENAND_GPMC_CONFIG3,
+	ONENAND_GPMC_CONFIG4,
+	ONENAND_GPMC_CONFIG5,
+	ONENAND_GPMC_CONFIG6, 0
+};
+
+#if defined(CONFIG_ENV_IS_IN_ONENAND)
+#define GPMC_CS 0
+#else
+#define GPMC_CS 1
+#endif
+
+#endif
+
+/********************************************************
+ *  mem_ok() - test used to see if timings are correct
+ *             for a part. Helps in guessing which part
+ *             we are currently using.
+ *******************************************************/
+u32 mem_ok(u32 cs)
+{
+	u32 val1, val2, addr;
+	u32 pattern = 0x12345678;
+
+	addr = OMAP34XX_SDRC_CS0 + get_sdr_cs_offset(cs);
+
+	writel(0x0, addr + 0x400);	/* clear pos A */
+	writel(pattern, addr);		/* pattern to pos B */
+	writel(0x0, addr + 4);		/* remove pattern off the bus */
+	val1 = readl(addr + 0x400);	/* get pos A value */
+	val2 = readl(addr);		/* get val2 */
+
+	if ((val1 != 0) || (val2 != pattern))	/* see if pos A val changed */
+		return 0;
+	else
+		return 1;
+}
+
+void enable_gpmc_cs_config(const u32 *gpmc_config, struct gpmc_cs *cs, u32 base,
+			u32 size)
+{
+	writel(0, &cs->config7);
+	sdelay(1000);
+	/* Delay for settling */
+	writel(gpmc_config[0], &cs->config1);
+	writel(gpmc_config[1], &cs->config2);
+	writel(gpmc_config[2], &cs->config3);
+	writel(gpmc_config[3], &cs->config4);
+	writel(gpmc_config[4], &cs->config5);
+	writel(gpmc_config[5], &cs->config6);
+	/* Enable the config */
+	writel((((size & 0xF) << 8) | ((base >> 24) & 0x3F) |
+		(1 << 6)), &cs->config7);
+	sdelay(2000);
+}
+
+/*****************************************************
+ * gpmc_init(): init gpmc bus
+ * Init GPMC for x16, MuxMode (SDRAM in x32).
+ * This code can only be executed from SRAM or SDRAM.
+ *****************************************************/
+void gpmc_init(void)
+{
+	/* putting a blanket check on GPMC based on ZeBu for now */
+	gpmc_cfg = (struct gpmc *)GPMC_BASE;
+#if defined(CONFIG_CMD_NAND) || defined(CONFIG_CMD_ONENAND)
+	const u32 *gpmc_config = NULL;
+	u32 base = 0;
+	u32 size = 0;
+#if defined(CONFIG_ENV_IS_IN_NAND) || defined(CONFIG_ENV_IS_IN_ONENAND)
+	u32 f_off = CONFIG_SYS_MONITOR_LEN;
+	u32 f_sec = 0;
+#endif
+#endif
+	u32 config = 0;
+
+	/* global settings */
+	writel(0, &gpmc_cfg->irqenable); /* isr's sources masked */
+	writel(0, &gpmc_cfg->timeout_control);/* timeout disable */
+
+	config = readl(&gpmc_cfg->config);
+	config &= (~0xf00);
+	writel(config, &gpmc_cfg->config);
+
+	/*
+	 * Disable the GPMC0 config set by ROM code
+	 * It conflicts with our MPDB (both at 0x08000000)
+	 */
+	writel(0, &gpmc_cfg->cs[0].config7);
+	sdelay(1000);
+
+#if defined(CONFIG_CMD_NAND)	/* CS 0 */
+	gpmc_config = gpmc_m_nand;
+
+	base = PISMO1_NAND_BASE;
+	size = PISMO1_NAND_SIZE;
+	enable_gpmc_cs_config(gpmc_config, &gpmc_cfg->cs[0], base, size);
+#if defined(CONFIG_ENV_IS_IN_NAND)
+	f_off = SMNAND_ENV_OFFSET;
+	f_sec = (128 << 10);	/* 128 KiB */
+	/* env setup */
+	boot_flash_base = base;
+	boot_flash_off = f_off;
+	boot_flash_sec = f_sec;
+	boot_flash_env_addr = f_off;
+#endif
+#endif
+
+#if defined(CONFIG_CMD_ONENAND)
+	gpmc_config = gpmc_onenand;
+	base = PISMO1_ONEN_BASE;
+	size = PISMO1_ONEN_SIZE;
+	enable_gpmc_cs_config(gpmc_config, &gpmc_cfg->cs[0], base, size);
+#if defined(CONFIG_ENV_IS_IN_ONENAND)
+	f_off = ONENAND_ENV_OFFSET;
+	f_sec = (128 << 10);	/* 128 KiB */
+	/* env setup */
+	boot_flash_base = base;
+	boot_flash_off = f_off;
+	boot_flash_sec = f_sec;
+	boot_flash_env_addr = f_off;
+#endif
+#endif
+}
diff --git a/arch/arm/cpu/armv7/omap3/reset.S b/arch/arm/cpu/armv7/omap3/reset.S
new file mode 100644
index 000000000..a53c40819
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap3/reset.S
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2009 Samsung Electronics.
+ * Minkyu Kang <mk7.kang@samsung.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 <config.h>
+
+.global reset_cpu
+reset_cpu:
+	ldr	r1, rstctl			@ get addr for global reset
+						@ reg
+	mov	r3, #0x2			@ full reset pll + mpu
+	str	r3, [r1]			@ force reset
+	mov	r0, r0
+_loop_forever:
+	b	_loop_forever
+rstctl:
+	.word	PRM_RSTCTRL
diff --git a/arch/arm/cpu/armv7/omap3/sdrc.c b/arch/arm/cpu/armv7/omap3/sdrc.c
new file mode 100644
index 000000000..96fd990c7
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap3/sdrc.c
@@ -0,0 +1,202 @@
+/*
+ * Functions related to OMAP3 SDRC.
+ *
+ * This file has been created after exctracting and consolidating
+ * the SDRC related content from mem.c and board.c, also created
+ * generic init function (mem_init).
+ *
+ * Copyright (C) 2004-2010
+ * Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * Author :
+ *     Vaibhav Hiremath <hvaibhav@ti.com>
+ *
+ * Original implementation by (mem.c, board.c) :
+ *      Sunil Kumar <sunilsaini05@gmail.com>
+ *      Shashi Ranjan <shashiranjanmca05@gmail.com>
+ *      Manikandan Pillai <mani.pillai@ti.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 <common.h>
+#include <asm/io.h>
+#include <asm/arch/mem.h>
+#include <asm/arch/sys_proto.h>
+
+extern omap3_sysinfo sysinfo;
+
+static struct sdrc *sdrc_base = (struct sdrc *)OMAP34XX_SDRC_BASE;
+
+/*
+ * is_mem_sdr -
+ *  - Return 1 if mem type in use is SDR
+ */
+u32 is_mem_sdr(void)
+{
+	if (readl(&sdrc_base->cs[CS0].mr) == SDRC_MR_0_SDR)
+		return 1;
+	return 0;
+}
+
+/*
+ * make_cs1_contiguous -
+ *  - For es2 and above remap cs1 behind cs0 to allow command line
+ *    mem=xyz use all memory with out discontinuous support compiled in.
+ *    Could do it at the ATAG, but there really is two banks...
+ *  - Called as part of 2nd phase DDR init.
+ */
+void make_cs1_contiguous(void)
+{
+	u32 size, a_add_low, a_add_high;
+
+	size = get_sdr_cs_size(CS0);
+	size >>= 25;	/* divide by 32 MiB to find size to offset CS1 */
+	a_add_high = (size & 3) << 8;	/* set up low field */
+	a_add_low = (size & 0x3C) >> 2;	/* set up high field */
+	writel((a_add_high | a_add_low), &sdrc_base->cs_cfg);
+
+}
+
+
+/*
+ * get_sdr_cs_size -
+ *  - Get size of chip select 0/1
+ */
+u32 get_sdr_cs_size(u32 cs)
+{
+	u32 size;
+
+	/* get ram size field */
+	size = readl(&sdrc_base->cs[cs].mcfg) >> 8;
+	size &= 0x3FF;		/* remove unwanted bits */
+	size <<= 21;		/* multiply by 2 MiB to find size in MB */
+	return size;
+}
+
+/*
+ * get_sdr_cs_offset -
+ *  - Get offset of cs from cs0 start
+ */
+u32 get_sdr_cs_offset(u32 cs)
+{
+	u32 offset;
+
+	if (!cs)
+		return 0;
+
+	offset = readl(&sdrc_base->cs_cfg);
+	offset = (offset & 15) << 27 | (offset & 0x30) >> 17;
+
+	return offset;
+}
+
+/*
+ * do_sdrc_init -
+ *  - Initialize the SDRAM for use.
+ *  - Sets up SDRC timings for CS0
+ *  - code called once in C-Stack only context for CS0 and a possible 2nd
+ *    time depending on memory configuration from stack+global context
+ */
+void do_sdrc_init(u32 cs, u32 early)
+{
+	struct sdrc_actim *sdrc_actim_base;
+
+	if (cs)
+		sdrc_actim_base = (struct sdrc_actim *)SDRC_ACTIM_CTRL1_BASE;
+	else
+		sdrc_actim_base = (struct sdrc_actim *)SDRC_ACTIM_CTRL0_BASE;
+
+	if (early) {
+		/* reset sdrc controller */
+		writel(SOFTRESET, &sdrc_base->sysconfig);
+		wait_on_value(RESETDONE, RESETDONE, &sdrc_base->status,
+				12000000);
+		writel(0, &sdrc_base->sysconfig);
+
+		/* setup sdrc to ball mux */
+		writel(SDRC_SHARING, &sdrc_base->sharing);
+
+		/* Disable Power Down of CKE cuz of 1 CKE on combo part */
+		writel(WAKEUPPROC | SRFRONRESET | PAGEPOLICY_HIGH,
+				&sdrc_base->power);
+
+		writel(ENADLL | DLLPHASE_90, &sdrc_base->dlla_ctrl);
+		sdelay(0x20000);
+	}
+
+	writel(RASWIDTH_13BITS | CASWIDTH_10BITS | ADDRMUXLEGACY |
+			RAMSIZE_128 | BANKALLOCATION | B32NOT16 | B32NOT16 |
+			DEEPPD | DDR_SDRAM, &sdrc_base->cs[cs].mcfg);
+	writel(ARCV | ARE_ARCV_1, &sdrc_base->cs[cs].rfr_ctrl);
+	writel(V_ACTIMA_165, &sdrc_actim_base->ctrla);
+	writel(V_ACTIMB_165, &sdrc_actim_base->ctrlb);
+
+	writel(CMD_NOP, &sdrc_base->cs[cs].manual);
+	writel(CMD_PRECHARGE, &sdrc_base->cs[cs].manual);
+	writel(CMD_AUTOREFRESH, &sdrc_base->cs[cs].manual);
+	writel(CMD_AUTOREFRESH, &sdrc_base->cs[cs].manual);
+
+	/*
+	 * CAS latency 3, Write Burst = Read Burst, Serial Mode,
+	 * Burst length = 4
+	 */
+	writel(CASL3 | BURSTLENGTH4, &sdrc_base->cs[cs].mr);
+
+	if (!mem_ok(cs))
+		writel(0, &sdrc_base->cs[cs].mcfg);
+}
+
+/*
+ * dram_init -
+ *  - Sets uboots idea of sdram size
+ */
+int dram_init(void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+	unsigned int size0 = 0, size1 = 0;
+
+	size0 = get_sdr_cs_size(CS0);
+	/*
+	 * If a second bank of DDR is attached to CS1 this is
+	 * where it can be started.  Early init code will init
+	 * memory on CS0.
+	 */
+	if ((sysinfo.mtype == DDR_COMBO) || (sysinfo.mtype == DDR_STACKED)) {
+		do_sdrc_init(CS1, NOT_EARLY);
+		make_cs1_contiguous();
+
+		size1 = get_sdr_cs_size(CS1);
+	}
+
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[0].size = size0;
+	gd->bd->bi_dram[1].start = PHYS_SDRAM_1 + get_sdr_cs_offset(CS1);
+	gd->bd->bi_dram[1].size = size1;
+
+	return 0;
+}
+
+/*
+ * mem_init -
+ *  - Init the sdrc chip,
+ *  - Selects CS0 and CS1,
+ */
+void mem_init(void)
+{
+	/* only init up first bank here */
+	do_sdrc_init(CS0, EARLY_INIT);
+}
diff --git a/arch/arm/cpu/armv7/omap3/sys_info.c b/arch/arm/cpu/armv7/omap3/sys_info.c
new file mode 100644
index 000000000..1df4401d4
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap3/sys_info.c
@@ -0,0 +1,258 @@
+/*
+ * (C) Copyright 2008
+ * Texas Instruments, <www.ti.com>
+ *
+ * Author :
+ *      Manikandan Pillai <mani.pillai@ti.com>
+ *
+ * Derived from Beagle Board and 3430 SDP code by
+ *      Richard Woodruff <r-woodruff2@ti.com>
+ *      Syed Mohammed Khasim <khasim@ti.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 <common.h>
+#include <asm/io.h>
+#include <asm/arch/mem.h>	/* get mem tables */
+#include <asm/arch/sys_proto.h>
+#include <i2c.h>
+
+extern omap3_sysinfo sysinfo;
+static struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
+static char *rev_s[CPU_3XX_MAX_REV] = {
+				"1.0",
+				"2.0",
+				"2.1",
+				"3.0",
+				"3.1"};
+
+/*****************************************************************
+ * dieid_num_r(void) - read and set die ID
+ *****************************************************************/
+void dieid_num_r(void)
+{
+	struct ctrl_id *id_base = (struct ctrl_id *)OMAP34XX_ID_L4_IO_BASE;
+	char *uid_s, die_id[34];
+	u32 id[4];
+
+	memset(die_id, 0, sizeof(die_id));
+
+	uid_s = getenv("dieid#");
+
+	if (uid_s == NULL) {
+		id[3] = readl(&id_base->die_id_0);
+		id[2] = readl(&id_base->die_id_1);
+		id[1] = readl(&id_base->die_id_2);
+		id[0] = readl(&id_base->die_id_3);
+		sprintf(die_id, "%08x%08x%08x%08x", id[0], id[1], id[2], id[3]);
+		setenv("dieid#", die_id);
+		uid_s = die_id;
+	}
+
+	printf("Die ID #%s\n", uid_s);
+}
+
+/******************************************
+ * get_cpu_type(void) - extract cpu info
+ ******************************************/
+u32 get_cpu_type(void)
+{
+	return readl(&ctrl_base->ctrl_omap_stat);
+}
+
+/******************************************
+ * get_cpu_rev(void) - extract version info
+ ******************************************/
+u32 get_cpu_rev(void)
+{
+	u32 cpuid = 0;
+	struct ctrl_id *id_base;
+
+	/*
+	 * On ES1.0 the IDCODE register is not exposed on L4
+	 * so using CPU ID to differentiate between ES1.0 and > ES1.0.
+	 */
+	__asm__ __volatile__("mrc p15, 0, %0, c0, c0, 0":"=r"(cpuid));
+	if ((cpuid & 0xf) == 0x0)
+		return CPU_3XX_ES10;
+	else {
+		/* Decode the IDs on > ES1.0 */
+		id_base = (struct ctrl_id *) OMAP34XX_ID_L4_IO_BASE;
+
+		cpuid = (readl(&id_base->idcode) >> CPU_3XX_ID_SHIFT) & 0xf;
+
+		/* Some early ES2.0 seem to report ID 0, fix this */
+		if(cpuid == 0)
+			cpuid = CPU_3XX_ES20;
+
+		return cpuid;
+	}
+}
+
+/***************************************************************************
+ *  get_gpmc0_base() - Return current address hardware will be
+ *     fetching from. The below effectively gives what is correct, its a bit
+ *   mis-leading compared to the TRM.  For the most general case the mask
+ *   needs to be also taken into account this does work in practice.
+ *   - for u-boot we currently map:
+ *       -- 0 to nothing,
+ *       -- 4 to flash
+ *       -- 8 to enent
+ *       -- c to wifi
+ ****************************************************************************/
+u32 get_gpmc0_base(void)
+{
+	u32 b;
+
+	b = readl(&gpmc_cfg->cs[0].config7);
+	b &= 0x1F;		/* keep base [5:0] */
+	b = b << 24;		/* ret 0x0b000000 */
+	return b;
+}
+
+/*******************************************************************
+ * get_gpmc0_width() - See if bus is in x8 or x16 (mainly for nand)
+ *******************************************************************/
+u32 get_gpmc0_width(void)
+{
+	return WIDTH_16BIT;
+}
+
+/*************************************************************************
+ * get_board_rev() - setup to pass kernel board revision information
+ * returns:(bit[0-3] sub version, higher bit[7-4] is higher version)
+ *************************************************************************/
+u32 get_board_rev(void)
+{
+	return 0x20;
+}
+
+/********************************************************
+ *  get_base(); get upper addr of current execution
+ *******************************************************/
+u32 get_base(void)
+{
+	u32 val;
+
+	__asm__ __volatile__("mov %0, pc \n":"=r"(val)::"memory");
+	val &= 0xF0000000;
+	val >>= 28;
+	return val;
+}
+
+/********************************************************
+ *  is_running_in_flash() - tell if currently running in
+ *  FLASH.
+ *******************************************************/
+u32 is_running_in_flash(void)
+{
+	if (get_base() < 4)
+		return 1;	/* in FLASH */
+
+	return 0;		/* running in SRAM or SDRAM */
+}
+
+/********************************************************
+ *  is_running_in_sram() - tell if currently running in
+ *  SRAM.
+ *******************************************************/
+u32 is_running_in_sram(void)
+{
+	if (get_base() == 4)
+		return 1;	/* in SRAM */
+
+	return 0;		/* running in FLASH or SDRAM */
+}
+
+/********************************************************
+ *  is_running_in_sdram() - tell if currently running in
+ *  SDRAM.
+ *******************************************************/
+u32 is_running_in_sdram(void)
+{
+	if (get_base() > 4)
+		return 1;	/* in SDRAM */
+
+	return 0;		/* running in SRAM or FLASH */
+}
+
+/***************************************************************
+ *  get_boot_type() - Is this an XIP type device or a stream one
+ *  bits 4-0 specify type. Bit 5 says mem/perif
+ ***************************************************************/
+u32 get_boot_type(void)
+{
+	return (readl(&ctrl_base->status) & SYSBOOT_MASK);
+}
+
+/*************************************************************
+ *  get_device_type(): tell if GP/HS/EMU/TST
+ *************************************************************/
+u32 get_device_type(void)
+{
+	return ((readl(&ctrl_base->status) & (DEVICE_MASK)) >> 8);
+}
+
+#ifdef CONFIG_DISPLAY_CPUINFO
+/**
+ * Print CPU information
+ */
+int print_cpuinfo (void)
+{
+	char *cpu_s, *sec_s;
+
+	switch (get_cpu_type()) {
+	case OMAP3503:
+		cpu_s = "3503";
+		break;
+	case OMAP3515:
+		cpu_s = "3515";
+		break;
+	case OMAP3525:
+		cpu_s = "3525";
+		break;
+	case OMAP3530:
+		cpu_s = "3530";
+		break;
+	default:
+		cpu_s = "35XX";
+		break;
+	}
+
+	switch (get_device_type()) {
+	case TST_DEVICE:
+		sec_s = "TST";
+		break;
+	case EMU_DEVICE:
+		sec_s = "EMU";
+		break;
+	case HS_DEVICE:
+		sec_s = "HS";
+		break;
+	case GP_DEVICE:
+		sec_s = "GP";
+		break;
+	default:
+		sec_s = "?";
+	}
+
+	printf("OMAP%s-%s ES%s, CPU-OPP2 L3-165MHz\n",
+			cpu_s, sec_s, rev_s[get_cpu_rev()]);
+
+	return 0;
+}
+#endif	/* CONFIG_DISPLAY_CPUINFO */
diff --git a/arch/arm/cpu/armv7/omap3/syslib.c b/arch/arm/cpu/armv7/omap3/syslib.c
new file mode 100644
index 000000000..9ced495c8
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap3/syslib.c
@@ -0,0 +1,72 @@
+/*
+ * (C) Copyright 2008
+ * Texas Instruments, <www.ti.com>
+ *
+ * Richard Woodruff <r-woodruff2@ti.com>
+ * Syed Mohammed Khasim <khasim@ti.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 <common.h>
+#include <asm/io.h>
+#include <asm/arch/mem.h>
+#include <asm/arch/clocks.h>
+#include <asm/arch/sys_proto.h>
+
+/************************************************************
+ * sdelay() - simple spin loop.  Will be constant time as
+ *  its generally used in bypass conditions only.  This
+ *  is necessary until timers are accessible.
+ *
+ *  not inline to increase chances its in cache when called
+ *************************************************************/
+void sdelay(unsigned long loops)
+{
+	__asm__ volatile ("1:\n" "subs %0, %1, #1\n"
+			  "bne 1b":"=r" (loops):"0"(loops));
+}
+
+/*****************************************************************
+ * sr32 - clear & set a value in a bit range for a 32 bit address
+ *****************************************************************/
+void sr32(void *addr, u32 start_bit, u32 num_bits, u32 value)
+{
+	u32 tmp, msk = 0;
+	msk = 1 << num_bits;
+	--msk;
+	tmp = readl((u32)addr) & ~(msk << start_bit);
+	tmp |= value << start_bit;
+	writel(tmp, (u32)addr);
+}
+
+/*********************************************************************
+ * wait_on_value() - common routine to allow waiting for changes in
+ *   volatile regs.
+ *********************************************************************/
+u32 wait_on_value(u32 read_bit_mask, u32 match_value, void *read_addr,
+		  u32 bound)
+{
+	u32 i = 0, val;
+	do {
+		++i;
+		val = readl((u32)read_addr) & read_bit_mask;
+		if (val == match_value)
+			return 1;
+		if (i == bound)
+			return 0;
+	} while (1);
+}
diff --git a/arch/arm/cpu/armv7/omap3/timer.c b/arch/arm/cpu/armv7/omap3/timer.c
new file mode 100644
index 000000000..401bfe6d0
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap3/timer.c
@@ -0,0 +1,138 @@
+/*
+ * (C) Copyright 2008
+ * Texas Instruments
+ *
+ * Richard Woodruff <r-woodruff2@ti.com>
+ * Syed Moahmmed Khasim <khasim@ti.com>
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ * Alex Zuepke <azu@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
+ *
+ * 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/io.h>
+
+static ulong timestamp;
+static ulong lastinc;
+static struct gptimer *timer_base = (struct gptimer *)CONFIG_SYS_TIMERBASE;
+
+/*
+ * Nothing really to do with interrupts, just starts up a counter.
+ * We run the counter with 13MHz, divided by 8, resulting in timer
+ * frequency of 1.625MHz. With 32bit counter register, counter
+ * overflows in ~44min
+ */
+
+/* 13MHz / 8 = 1.625MHz */
+#define TIMER_CLOCK	(V_SCLK / (2 << CONFIG_SYS_PTV))
+#define TIMER_LOAD_VAL	0xffffffff
+
+int timer_init(void)
+{
+	/* start the counter ticking up, reload value on overflow */
+	writel(TIMER_LOAD_VAL, &timer_base->tldr);
+	/* enable timer */
+	writel((CONFIG_SYS_PTV << 2) | TCLR_PRE | TCLR_AR | TCLR_ST,
+		&timer_base->tclr);
+
+	reset_timer_masked();	/* init the timestamp and lastinc value */
+
+	return 0;
+}
+
+/*
+ * timer without interrupts
+ */
+void reset_timer(void)
+{
+	reset_timer_masked();
+}
+
+ulong get_timer(ulong base)
+{
+	return get_timer_masked() - base;
+}
+
+void set_timer(ulong t)
+{
+	timestamp = t;
+}
+
+/* delay x useconds */
+void __udelay(unsigned long usec)
+{
+	long tmo = usec * (TIMER_CLOCK / 1000) / 1000;
+	unsigned long now, last = readl(&timer_base->tcrr);
+
+	while (tmo > 0) {
+		now = readl(&timer_base->tcrr);
+		if (last > now) /* count up timer overflow */
+			tmo -= TIMER_LOAD_VAL - last + now;
+		else
+			tmo -= now - last;
+		last = now;
+	}
+}
+
+void reset_timer_masked(void)
+{
+	/* reset time, capture current incrementer value time */
+	lastinc = readl(&timer_base->tcrr) / (TIMER_CLOCK / CONFIG_SYS_HZ);
+	timestamp = 0;		/* start "advancing" time stamp from 0 */
+}
+
+ulong get_timer_masked(void)
+{
+	/* current tick value */
+	ulong now = readl(&timer_base->tcrr) / (TIMER_CLOCK / CONFIG_SYS_HZ);
+
+	if (now >= lastinc)	/* normal mode (non roll) */
+		/* move stamp fordward with absoulte diff ticks */
+		timestamp += (now - lastinc);
+	else	/* we have rollover of incrementer */
+		timestamp += ((TIMER_LOAD_VAL / (TIMER_CLOCK / CONFIG_SYS_HZ))
+				- lastinc) + now;
+	lastinc = now;
+	return timestamp;
+}
+
+/*
+ * This function is derived from PowerPC code (read timebase as long long).
+ * On ARM it just returns the timer value.
+ */
+unsigned long long get_ticks(void)
+{
+	return get_timer(0);
+}
+
+/*
+ * This function is derived from PowerPC code (timebase clock frequency).
+ * On ARM it returns the number of timer ticks per second.
+ */
+ulong get_tbclk(void)
+{
+	return CONFIG_SYS_HZ;
+}