arm: Introduce arch/arm/mach-omap2 for OMAP2 derivative platforms

This moves what was in arch/arm/cpu/armv7/omap-common in to
arch/arm/mach-omap2 and moves
arch/arm/cpu/armv7/{am33xx,omap3,omap4,omap5} in to arch/arm/mach-omap2
as subdirectories.  All refernces to the former locations are updated to
the current locations.  For the logic to decide what our outputs are,
consolidate the tests into a single config.mk rather than including 4.

Signed-off-by: Tom Rini <trini@konsulko.com>

12 files changed, 2884 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/omap3/Kconfig b/arch/arm/mach-omap2/omap3/Kconfig
new file mode 100644
index 0000000..7d884a2
--- /dev/null
+++ b/arch/arm/mach-omap2/omap3/Kconfig
@@ -0,0 +1,154 @@
+if OMAP34XX
+
+config SPL_EXT_SUPPORT
+	default y
+
+config SPL_FAT_SUPPORT
+	default y
+
+config SPL_GPIO_SUPPORT
+	default y
+
+config SPL_I2C_SUPPORT
+	default y
+
+config SPL_LIBCOMMON_SUPPORT
+	default y
+
+config SPL_LIBDISK_SUPPORT
+	default y
+
+config SPL_LIBGENERIC_SUPPORT
+	default y
+
+config SPL_MMC_SUPPORT
+	default y
+
+config SPL_NAND_SUPPORT
+	default y
+
+config SPL_POWER_SUPPORT
+	default y
+
+config SPL_SERIAL_SUPPORT
+	default y
+
+choice
+	prompt "OMAP3 board select"
+	optional
+
+config TARGET_AM3517_EVM
+	bool "AM3517 EVM"
+
+config TARGET_MT_VENTOUX
+	bool "TeeJet Mt.Ventoux"
+
+config TARGET_OMAP3_BEAGLE
+	bool "TI OMAP3 BeagleBoard"
+	select DM
+	select DM_SERIAL
+	select DM_GPIO
+
+config TARGET_CM_T35
+	bool "CompuLab CM-T3530 and CM-T3730 boards"
+
+config TARGET_CM_T3517
+	bool "CompuLab CM-T3517 boards"
+
+config TARGET_DEVKIT8000
+	bool "TimLL OMAP3 Devkit8000"
+	select DM
+	select DM_SERIAL
+	select DM_GPIO
+
+config TARGET_OMAP3_EVM
+	bool "TI OMAP3 EVM"
+
+config TARGET_OMAP3_IGEP00X0
+	bool "IGEP"
+	select DM
+	select DM_SERIAL
+	select DM_GPIO
+
+config TARGET_OMAP3_OVERO
+	bool "OMAP35xx Gumstix Overo"
+	select DM
+	select DM_SERIAL
+	select DM_GPIO
+
+config TARGET_OMAP3_ZOOM1
+	bool "TI Zoom1"
+	select DM
+	select DM_SERIAL
+	select DM_GPIO
+
+config TARGET_AM3517_CRANE
+	bool "am3517_crane"
+
+config TARGET_OMAP3_PANDORA
+	bool "OMAP3 Pandora"
+
+config TARGET_ECO5PK
+	bool "ECO5PK"
+
+config TARGET_TRICORDER
+	bool "Tricorder"
+
+config TARGET_MCX
+	bool "MCX"
+
+config TARGET_OMAP3_LOGIC
+	bool "OMAP3 Logic"
+	select DM
+	select DM_SERIAL
+	select DM_GPIO
+
+config TARGET_NOKIA_RX51
+	bool "Nokia RX51"
+
+config TARGET_TAO3530
+	bool "TAO3530"
+
+config TARGET_TWISTER
+	bool "Twister"
+
+config TARGET_OMAP3_CAIRO
+	bool "QUIPOS CAIRO"
+	select DM
+	select DM_SERIAL
+	select DM_GPIO
+
+config TARGET_SNIPER
+	bool "LG Optimus Black"
+	select DM
+	select DM_SERIAL
+	select DM_GPIO
+
+endchoice
+
+config SYS_SOC
+	default "omap3"
+
+source "board/logicpd/am3517evm/Kconfig"
+source "board/teejet/mt_ventoux/Kconfig"
+source "board/ti/beagle/Kconfig"
+source "board/compulab/cm_t35/Kconfig"
+source "board/compulab/cm_t3517/Kconfig"
+source "board/timll/devkit8000/Kconfig"
+source "board/ti/evm/Kconfig"
+source "board/isee/igep00x0/Kconfig"
+source "board/overo/Kconfig"
+source "board/logicpd/zoom1/Kconfig"
+source "board/ti/am3517crane/Kconfig"
+source "board/pandora/Kconfig"
+source "board/8dtech/eco5pk/Kconfig"
+source "board/corscience/tricorder/Kconfig"
+source "board/htkw/mcx/Kconfig"
+source "board/logicpd/omap3som/Kconfig"
+source "board/nokia/rx51/Kconfig"
+source "board/technexion/tao3530/Kconfig"
+source "board/technexion/twister/Kconfig"
+source "board/quipos/cairo/Kconfig"
+source "board/lg/sniper/Kconfig"
+
+endif
diff --git a/arch/arm/mach-omap2/omap3/Makefile b/arch/arm/mach-omap2/omap3/Makefile
new file mode 100644
index 0000000..b2fce96
--- /dev/null
+++ b/arch/arm/mach-omap2/omap3/Makefile
@@ -0,0 +1,21 @@
+#
+# (C) Copyright 2000-2003
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	:= lowlevel_init.o
+
+obj-y	+= board.o
+obj-y	+= boot.o
+obj-y	+= clock.o
+obj-y	+= sys_info.o
+ifdef CONFIG_SPL_BUILD
+obj-$(CONFIG_SPL_OMAP3_ID_NAND)	+= spl_id_nand.o
+endif
+
+obj-$(CONFIG_DRIVER_TI_EMAC)	+= emac.o
+obj-$(CONFIG_EMIF4)	+= emif4.o
+obj-$(CONFIG_SDRC)	+= sdrc.o
+obj-$(CONFIG_USB_MUSB_AM35X)	+= am35x_musb.o
diff --git a/arch/arm/mach-omap2/omap3/am35x_musb.c b/arch/arm/mach-omap2/omap3/am35x_musb.c
new file mode 100644
index 0000000..74dd105
--- /dev/null
+++ b/arch/arm/mach-omap2/omap3/am35x_musb.c
@@ -0,0 +1,61 @@
+/*
+ * This file configures the internal USB PHY in AM35X.
+ *
+ * Copyright (C) 2012 Ilya Yanok <ilya.yanok@gmail.com>
+ *
+ * Based on omap_phy_internal.c code from Linux by
+ * Hema HK <hemahk@ti.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/am35x_def.h>
+
+void am35x_musb_reset(void)
+{
+	/* Reset the musb interface */
+	clrsetbits_le32(&am35x_scm_general_regs->ip_sw_reset,
+			0, USBOTGSS_SW_RST);
+	clrsetbits_le32(&am35x_scm_general_regs->ip_sw_reset,
+			USBOTGSS_SW_RST, 0);
+}
+
+void am35x_musb_phy_power(u8 on)
+{
+	unsigned long start = get_timer(0);
+
+	if (on) {
+		/*
+		 * Start the on-chip PHY and its PLL.
+		 */
+		clrsetbits_le32(&am35x_scm_general_regs->devconf2,
+				CONF2_RESET | CONF2_PHYPWRDN | CONF2_OTGPWRDN,
+				CONF2_PHY_PLLON);
+
+		debug("Waiting for PHY clock good...\n");
+		while (!(readl(&am35x_scm_general_regs->devconf2)
+				& CONF2_PHYCLKGD)) {
+
+			if (get_timer(start) > CONFIG_SYS_HZ / 10) {
+				printf("musb PHY clock good timed out\n");
+				break;
+			}
+		}
+	} else {
+		/*
+		 * Power down the on-chip PHY.
+		 */
+		clrsetbits_le32(&am35x_scm_general_regs->devconf2,
+				CONF2_PHY_PLLON,
+				CONF2_PHYPWRDN | CONF2_OTGPWRDN);
+	}
+}
+
+void am35x_musb_clear_irq(void)
+{
+	clrsetbits_le32(&am35x_scm_general_regs->lvl_intr_clr,
+			0, USBOTGSS_INT_CLR);
+	readl(&am35x_scm_general_regs->lvl_intr_clr);
+}
diff --git a/arch/arm/mach-omap2/omap3/board.c b/arch/arm/mach-omap2/omap3/board.c
new file mode 100644
index 0000000..5f55977
--- /dev/null
+++ b/arch/arm/mach-omap2/omap3/board.c
@@ -0,0 +1,434 @@
+/*
+ *
+ * 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>
+ *
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#include <common.h>
+#include <dm.h>
+#include <spl.h>
+#include <asm/io.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/mem.h>
+#include <asm/cache.h>
+#include <asm/armv7.h>
+#include <asm/gpio.h>
+#include <asm/omap_common.h>
+#include <linux/compiler.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* Declarations */
+extern omap3_sysinfo sysinfo;
+#ifndef CONFIG_SYS_L2CACHE_OFF
+static void omap3_invalidate_l2_cache_secure(void);
+#endif
+
+#ifdef CONFIG_DM_GPIO
+static const struct omap_gpio_platdata omap34xx_gpio[] = {
+	{ 0, OMAP34XX_GPIO1_BASE },
+	{ 1, OMAP34XX_GPIO2_BASE },
+	{ 2, OMAP34XX_GPIO3_BASE },
+	{ 3, OMAP34XX_GPIO4_BASE },
+	{ 4, OMAP34XX_GPIO5_BASE },
+	{ 5, OMAP34XX_GPIO6_BASE },
+};
+
+U_BOOT_DEVICES(am33xx_gpios) = {
+	{ "gpio_omap", &omap34xx_gpio[0] },
+	{ "gpio_omap", &omap34xx_gpio[1] },
+	{ "gpio_omap", &omap34xx_gpio[2] },
+	{ "gpio_omap", &omap34xx_gpio[3] },
+	{ "gpio_omap", &omap34xx_gpio[4] },
+	{ "gpio_omap", &omap34xx_gpio[5] },
+};
+
+#else
+
+static const struct gpio_bank gpio_bank_34xx[6] = {
+	{ (void *)OMAP34XX_GPIO1_BASE },
+	{ (void *)OMAP34XX_GPIO2_BASE },
+	{ (void *)OMAP34XX_GPIO3_BASE },
+	{ (void *)OMAP34XX_GPIO4_BASE },
+	{ (void *)OMAP34XX_GPIO5_BASE },
+	{ (void *)OMAP34XX_GPIO6_BASE },
+};
+
+const struct gpio_bank *const omap_gpio_bank = gpio_bank_34xx;
+
+#endif
+
+/******************************************************************************
+ * 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(void)
+{
+	unsigned long i;
+
+	/* configure 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: try_unlock_sram()
+ * Description: If chip is GP/EMU(special) type, unlock the SRAM for
+ *              general use.
+ *****************************************************************************/
+void try_unlock_memory(void)
+{
+	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)
+{
+	watchdog_init();
+
+	try_unlock_memory();
+
+#ifndef CONFIG_SYS_L2CACHE_OFF
+	/* Invalidate L2-cache from secure mode */
+	omap3_invalidate_l2_cache_secure();
+#endif
+
+	set_muxconf_regs();
+	sdelay(100);
+
+	prcm_init();
+
+	per_clocks_enable();
+
+#ifdef CONFIG_USB_EHCI_OMAP
+	ehci_clocks_enable();
+#endif
+}
+
+#ifdef CONFIG_SPL_BUILD
+void board_init_f(ulong dummy)
+{
+	mem_init();
+}
+#endif
+
+/*
+ * Routine: misc_init_r
+ * Description: A basic misc_init_r that just displays the die ID
+ */
+int __weak misc_init_r(void)
+{
+	omap_die_id_display();
+
+	return 0;
+}
+
+/******************************************************************************
+ * Routine: wait_for_command_complete
+ * Description: Wait for posting to finish on watchdog
+ *****************************************************************************/
+static 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.
+	 */
+
+	setbits_le32(&prcm_base->fclken_wkup, 0x20);
+	setbits_le32(&prcm_base->iclken_wkup, 0x20);
+	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)
+{
+}
+
+#if defined(CONFIG_NAND_OMAP_GPMC) & !defined(CONFIG_SPL_BUILD)
+/******************************************************************************
+ * 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 || argc > 3)
+		goto usage;
+
+	if (strncmp(argv[1], "hw", 2) == 0) {
+		if (argc == 2) {
+			omap_nand_switch_ecc(1, 1);
+		} else {
+			if (strncmp(argv[2], "hamming", 7) == 0)
+				omap_nand_switch_ecc(1, 1);
+			else if (strncmp(argv[2], "bch8", 4) == 0)
+				omap_nand_switch_ecc(1, 8);
+			else if (strncmp(argv[2], "bch16", 5) == 0)
+				omap_nand_switch_ecc(1, 16);
+			else
+				goto usage;
+		}
+	} else if (strncmp(argv[1], "sw", 2) == 0) {
+		if (argc == 2) {
+			omap_nand_switch_ecc(0, 1);
+		} else {
+			if (strncmp(argv[2], "hamming", 7) == 0)
+				omap_nand_switch_ecc(0, 1);
+			else if (strncmp(argv[2], "bch8", 4) == 0)
+				omap_nand_switch_ecc(0, 8);
+			else
+				goto usage;
+		}
+	} else {
+		goto usage;
+	}
+
+	return 0;
+
+usage:
+	printf ("Usage: nandecc %s\n", cmdtp->usage);
+	return 1;
+}
+
+U_BOOT_CMD(
+	nandecc, 3, 1,	do_switch_ecc,
+	"switch OMAP3 NAND ECC calculation algorithm",
+	"hw [hamming|bch8|bch16] - Switch between NAND hardware 1-bit hamming"
+	" and 8-bit/16-bit BCH\n"
+	"                           ecc calculation (second parameter may"
+	" be omitted).\n"
+	"nandecc sw               - Switch to NAND software ecc algorithm."
+);
+
+#endif /* CONFIG_NAND_OMAP_GPMC & !CONFIG_SPL_BUILD */
+
+#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 */
+
+static void omap3_emu_romcode_call(u32 service_id, u32 *parameters)
+{
+	u32 i, num_params = *parameters;
+	u32 *sram_scratch_space = (u32 *)OMAP3_PUBLIC_SRAM_SCRATCH_AREA;
+
+	/*
+	 * copy the parameters to an un-cached area to avoid coherency
+	 * issues
+	 */
+	for (i = 0; i < num_params; i++) {
+		__raw_writel(*parameters, sram_scratch_space);
+		parameters++;
+		sram_scratch_space++;
+	}
+
+	/* Now make the PPA call */
+	do_omap3_emu_romcode_call(service_id, OMAP3_PUBLIC_SRAM_SCRATCH_AREA);
+}
+
+void __weak omap3_set_aux_cr_secure(u32 acr)
+{
+	struct emu_hal_params emu_romcode_params;
+
+	emu_romcode_params.num_params = 1;
+	emu_romcode_params.param1 = acr;
+	omap3_emu_romcode_call(OMAP3_EMU_HAL_API_WRITE_ACR,
+			       (u32 *)&emu_romcode_params);
+}
+
+void v7_arch_cp15_set_acr(u32 acr, u32 cpu_midr, u32 cpu_rev_comb,
+			  u32 cpu_variant, u32 cpu_rev)
+{
+	/* Write ACR - affects secure banked bits */
+	if (get_device_type() == GP_DEVICE)
+		omap_smc1(OMAP3_GP_ROMCODE_API_WRITE_ACR, acr);
+	else
+		omap3_set_aux_cr_secure(acr);
+
+	/* Write ACR - affects non-secure banked bits - some erratas need it */
+	asm volatile ("mcr p15, 0, %0, c1, c0, 1" : : "r" (acr));
+}
+
+
+#ifndef CONFIG_SYS_L2CACHE_OFF
+static void omap3_update_aux_cr(u32 set_bits, u32 clear_bits)
+{
+	u32 acr;
+
+	/* Read ACR */
+	asm volatile ("mrc p15, 0, %0, c1, c0, 1" : "=r" (acr));
+	acr &= ~clear_bits;
+	acr |= set_bits;
+	v7_arch_cp15_set_acr(acr, 0, 0, 0, 0);
+
+}
+
+/* Invalidate the entire L2 cache from secure mode */
+static void omap3_invalidate_l2_cache_secure(void)
+{
+	if (get_device_type() == GP_DEVICE) {
+		omap_smc1(OMAP3_GP_ROMCODE_API_L2_INVAL, 0);
+	} else {
+		struct emu_hal_params emu_romcode_params;
+		emu_romcode_params.num_params = 1;
+		emu_romcode_params.param1 = 0;
+		omap3_emu_romcode_call(OMAP3_EMU_HAL_API_L2_INVAL,
+				       (u32 *)&emu_romcode_params);
+	}
+}
+
+void v7_outer_cache_enable(void)
+{
+
+	/*
+	 * Set L2EN
+	 * On some revisions L2EN bit is banked on some revisions it's not
+	 * No harm in setting both banked bits(in fact this is required
+	 * by an erratum)
+	 */
+	omap3_update_aux_cr(0x2, 0);
+}
+
+void omap3_outer_cache_disable(void)
+{
+	/*
+	 * Clear L2EN
+	 * On some revisions L2EN bit is banked on some revisions it's not
+	 * No harm in clearing both banked bits(in fact this is required
+	 * by an erratum)
+	 */
+	omap3_update_aux_cr(0, 0x2);
+}
+#endif /* !CONFIG_SYS_L2CACHE_OFF */
diff --git a/arch/arm/mach-omap2/omap3/boot.c b/arch/arm/mach-omap2/omap3/boot.c
new file mode 100644
index 0000000..64b242b
--- /dev/null
+++ b/arch/arm/mach-omap2/omap3/boot.c
@@ -0,0 +1,104 @@
+/*
+ * OMAP3 boot
+ *
+ * Copyright (C) 2015 Paul Kocialkowski <contact@paulk.fr>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/sys_proto.h>
+#include <spl.h>
+
+static u32 boot_devices[] = {
+	BOOT_DEVICE_ONENAND,
+	BOOT_DEVICE_NAND,
+	BOOT_DEVICE_ONENAND,
+	BOOT_DEVICE_MMC2,
+	BOOT_DEVICE_ONENAND,
+	BOOT_DEVICE_MMC2,
+	BOOT_DEVICE_MMC1,
+	BOOT_DEVICE_XIP,
+	BOOT_DEVICE_XIPWAIT,
+	BOOT_DEVICE_MMC2,
+	BOOT_DEVICE_XIP,
+	BOOT_DEVICE_XIPWAIT,
+	BOOT_DEVICE_NAND,
+	BOOT_DEVICE_XIP,
+	BOOT_DEVICE_XIPWAIT,
+	BOOT_DEVICE_NAND,
+	BOOT_DEVICE_ONENAND,
+	BOOT_DEVICE_MMC2,
+	BOOT_DEVICE_MMC1,
+	BOOT_DEVICE_XIP,
+	BOOT_DEVICE_XIPWAIT,
+	BOOT_DEVICE_NAND,
+	BOOT_DEVICE_ONENAND,
+	BOOT_DEVICE_MMC2,
+	BOOT_DEVICE_MMC1,
+	BOOT_DEVICE_XIP,
+	BOOT_DEVICE_XIPWAIT,
+	BOOT_DEVICE_NAND,
+	BOOT_DEVICE_MMC2_2,
+};
+
+u32 omap_sys_boot_device(void)
+{
+	struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
+	u32 sys_boot;
+
+	/* Grab the first 5 bits of the status register for SYS_BOOT. */
+	sys_boot = readl(&ctrl_base->status) & ((1 << 5) - 1);
+
+	if (sys_boot >= (sizeof(boot_devices) / sizeof(u32)))
+		return BOOT_DEVICE_NONE;
+
+	return boot_devices[sys_boot];
+}
+
+int omap_reboot_mode(char *mode, unsigned int length)
+{
+	u32 reboot_mode;
+	char c;
+
+	if (length < 2)
+		return -1;
+
+	reboot_mode = readl((u32 *)(OMAP34XX_SCRATCHPAD +
+		OMAP_REBOOT_REASON_OFFSET));
+
+	c = (reboot_mode >> 24) & 0xff;
+	if (c != 'B')
+		return -1;
+
+	c = (reboot_mode >> 16) & 0xff;
+	if (c != 'M')
+		return -1;
+
+	c = reboot_mode & 0xff;
+
+	mode[0] = c;
+	mode[1] = '\0';
+
+	return 0;
+}
+
+int omap_reboot_mode_clear(void)
+{
+	writel(0, (u32 *)(OMAP34XX_SCRATCHPAD + OMAP_REBOOT_REASON_OFFSET));
+
+	return 0;
+}
+
+int omap_reboot_mode_store(char *mode)
+{
+	u32 reboot_mode;
+
+	reboot_mode = 'B' << 24 | 'M' << 16 | mode[0];
+
+	writel(reboot_mode, (u32 *)(OMAP34XX_SCRATCHPAD +
+		OMAP_REBOOT_REASON_OFFSET));
+
+	return 0;
+}
diff --git a/arch/arm/mach-omap2/omap3/clock.c b/arch/arm/mach-omap2/omap3/clock.c
new file mode 100644
index 0000000..006969e
--- /dev/null
+++ b/arch/arm/mach-omap2/omap3/clock.c
@@ -0,0 +1,799 @@
+/*
+ * (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>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/clock.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
+		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 */
+	cdiff *= cdiv;
+
+	/* 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;
+	}
+}
+
+/*
+ * OMAP34XX/35XX specific functions
+ */
+
+static void dpll3_init_34xx(u32 sil_index, u32 clk_index)
+{
+	struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
+	dpll_param *ptr = (dpll_param *) get_core_dpll_param();
+	void (*f_lock_pll) (u32, u32, u32, u32);
+	int xip_safe, p0, p1, p2, p3;
+
+	xip_safe = is_running_in_sram();
+
+	/* Moving to the right sysclk and ES rev base */
+	ptr = ptr + (3 * clk_index) + sil_index;
+
+	if (xip_safe) {
+		/*
+		 * CORE DPLL
+		 */
+		clrsetbits_le32(&prcm_base->clken_pll,
+				0x00000007, 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.
+		 */
+
+		/* CM_CLKSEL1_EMU[DIV_DPLL3] */
+		clrsetbits_le32(&prcm_base->clksel1_emu,
+				0x001F0000, (CORE_M3X2 + 1) << 16) ;
+		clrsetbits_le32(&prcm_base->clksel1_emu,
+				0x001F0000, CORE_M3X2 << 16);
+
+		/* M2 (CORE_DPLL_CLKOUT_DIV): CM_CLKSEL1_PLL[27:31] */
+		clrsetbits_le32(&prcm_base->clksel1_pll,
+				0xF8000000, ptr->m2 << 27);
+
+		/* M (CORE_DPLL_MULT): CM_CLKSEL1_PLL[16:26] */
+		clrsetbits_le32(&prcm_base->clksel1_pll,
+				0x07FF0000, ptr->m << 16);
+
+		/* N (CORE_DPLL_DIV): CM_CLKSEL1_PLL[8:14] */
+		clrsetbits_le32(&prcm_base->clksel1_pll,
+				0x00007F00, ptr->n << 8);
+
+		/* Source is the CM_96M_FCLK: CM_CLKSEL1_PLL[6] */
+		clrbits_le32(&prcm_base->clksel1_pll, 0x00000040);
+
+		/* SSI */
+		clrsetbits_le32(&prcm_base->clksel_core,
+				0x00000F00, CORE_SSI_DIV << 8);
+		/* FSUSB */
+		clrsetbits_le32(&prcm_base->clksel_core,
+				0x00000030, CORE_FUSB_DIV << 4);
+		/* L4 */
+		clrsetbits_le32(&prcm_base->clksel_core,
+				0x0000000C, CORE_L4_DIV << 2);
+		/* L3 */
+		clrsetbits_le32(&prcm_base->clksel_core,
+				0x00000003, CORE_L3_DIV);
+		/* GFX */
+		clrsetbits_le32(&prcm_base->clksel_gfx,
+				0x00000007, GFX_DIV);
+		/* RESET MGR */
+		clrsetbits_le32(&prcm_base->clksel_wkup,
+				0x00000006, WKUP_RSM << 1);
+		/* FREQSEL (CORE_DPLL_FREQSEL): CM_CLKEN_PLL[4:7] */
+		clrsetbits_le32(&prcm_base->clken_pll,
+				0x000000F0, ptr->fsel << 4);
+		/* LOCK MODE */
+		clrsetbits_le32(&prcm_base->clken_pll,
+				0x00000007, 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.
+		 */
+		f_lock_pll = (void *) (SRAM_CLK_CODE);
+
+		p0 = readl(&prcm_base->clken_pll);
+		clrsetbits_le32(&p0, 0x00000007, PLL_FAST_RELOCK_BYPASS);
+		/* FREQSEL (CORE_DPLL_FREQSEL): CM_CLKEN_PLL[4:7] */
+		clrsetbits_le32(&p0, 0x000000F0, ptr->fsel << 4);
+
+		p1 = readl(&prcm_base->clksel1_pll);
+		/* M2 (CORE_DPLL_CLKOUT_DIV): CM_CLKSEL1_PLL[27:31] */
+		clrsetbits_le32(&p1, 0xF8000000, ptr->m2 << 27);
+		/* M (CORE_DPLL_MULT): CM_CLKSEL1_PLL[16:26] */
+		clrsetbits_le32(&p1, 0x07FF0000, ptr->m << 16);
+		/* N (CORE_DPLL_DIV): CM_CLKSEL1_PLL[8:14] */
+		clrsetbits_le32(&p1, 0x00007F00, ptr->n << 8);
+		/* Source is the CM_96M_FCLK: CM_CLKSEL1_PLL[6] */
+		clrbits_le32(&p1, 0x00000040);
+
+		p2 = readl(&prcm_base->clksel_core);
+		/* SSI */
+		clrsetbits_le32(&p2, 0x00000F00, CORE_SSI_DIV << 8);
+		/* FSUSB */
+		clrsetbits_le32(&p2, 0x00000030, CORE_FUSB_DIV << 4);
+		/* L4 */
+		clrsetbits_le32(&p2, 0x0000000C, CORE_L4_DIV << 2);
+		/* L3 */
+		clrsetbits_le32(&p2, 0x00000003, CORE_L3_DIV);
+
+		p3 = (u32)&prcm_base->idlest_ckgen;
+
+		(*f_lock_pll) (p0, p1, p2, p3);
+	}
+}
+
+static void dpll4_init_34xx(u32 sil_index, u32 clk_index)
+{
+	struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
+	dpll_param *ptr = (dpll_param *) get_per_dpll_param();
+
+	/* Moving it to the right sysclk base */
+	ptr = ptr + clk_index;
+
+	/* EN_PERIPH_DPLL: CM_CLKEN_PLL[16:18] */
+	clrsetbits_le32(&prcm_base->clken_pll, 0x00070000, PLL_STOP << 16);
+	wait_on_value(ST_PERIPH_CLK, 0, &prcm_base->idlest_ckgen, LDELAY);
+
+	/*
+	 * Errata 1.50 Workaround for OMAP3 ES1.0 only
+	 * If using default divisors, write default divisor + 1
+	 * and then the actual divisor value
+	 */
+	/* M6 */
+	clrsetbits_le32(&prcm_base->clksel1_emu,
+			0x1F000000, (PER_M6X2 + 1) << 24);
+	clrsetbits_le32(&prcm_base->clksel1_emu,
+			0x1F000000, PER_M6X2 << 24);
+	/* M5 */
+	clrsetbits_le32(&prcm_base->clksel_cam, 0x0000001F, (PER_M5X2 + 1));
+	clrsetbits_le32(&prcm_base->clksel_cam, 0x0000001F, PER_M5X2);
+	/* M4 */
+	clrsetbits_le32(&prcm_base->clksel_dss, 0x0000001F, (PER_M4X2 + 1));
+	clrsetbits_le32(&prcm_base->clksel_dss, 0x0000001F, PER_M4X2);
+	/* M3 */
+	clrsetbits_le32(&prcm_base->clksel_dss,
+			0x00001F00, (PER_M3X2 + 1) << 8);
+	clrsetbits_le32(&prcm_base->clksel_dss,
+			0x00001F00, PER_M3X2 << 8);
+	/* M2 (DIV_96M): CM_CLKSEL3_PLL[0:4] */
+	clrsetbits_le32(&prcm_base->clksel3_pll, 0x0000001F, (ptr->m2 + 1));
+	clrsetbits_le32(&prcm_base->clksel3_pll, 0x0000001F, ptr->m2);
+	/* Workaround end */
+
+	/* M (PERIPH_DPLL_MULT): CM_CLKSEL2_PLL[8:18] */
+	clrsetbits_le32(&prcm_base->clksel2_pll,
+			0x0007FF00, ptr->m << 8);
+
+	/* N (PERIPH_DPLL_DIV): CM_CLKSEL2_PLL[0:6] */
+	clrsetbits_le32(&prcm_base->clksel2_pll, 0x0000007F, ptr->n);
+
+	/* FREQSEL (PERIPH_DPLL_FREQSEL): CM_CLKEN_PLL[20:23] */
+	clrsetbits_le32(&prcm_base->clken_pll, 0x00F00000, ptr->fsel << 20);
+
+	/* LOCK MODE (EN_PERIPH_DPLL): CM_CLKEN_PLL[16:18] */
+	clrsetbits_le32(&prcm_base->clken_pll, 0x00070000, PLL_LOCK << 16);
+	wait_on_value(ST_PERIPH_CLK, 2, &prcm_base->idlest_ckgen, LDELAY);
+}
+
+static void dpll5_init_34xx(u32 sil_index, u32 clk_index)
+{
+	struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
+	dpll_param *ptr = (dpll_param *) get_per2_dpll_param();
+
+	/* Moving it to the right sysclk base */
+	ptr = ptr + clk_index;
+
+	/* PER2 DPLL (DPLL5) */
+	clrsetbits_le32(&prcm_base->clken2_pll, 0x00000007, PLL_STOP);
+	wait_on_value(1, 0, &prcm_base->idlest2_ckgen, LDELAY);
+	/* set M2 (usbtll_fck) */
+	clrsetbits_le32(&prcm_base->clksel5_pll, 0x0000001F, ptr->m2);
+	/* set m (11-bit multiplier) */
+	clrsetbits_le32(&prcm_base->clksel4_pll, 0x0007FF00, ptr->m << 8);
+	/* set n (7-bit divider)*/
+	clrsetbits_le32(&prcm_base->clksel4_pll, 0x0000007F, ptr->n);
+	/* FREQSEL */
+	clrsetbits_le32(&prcm_base->clken_pll, 0x000000F0, ptr->fsel << 4);
+	/* lock mode */
+	clrsetbits_le32(&prcm_base->clken2_pll, 0x00000007, PLL_LOCK);
+	wait_on_value(1, 1, &prcm_base->idlest2_ckgen, LDELAY);
+}
+
+static void mpu_init_34xx(u32 sil_index, u32 clk_index)
+{
+	struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
+	dpll_param *ptr = (dpll_param *) get_mpu_dpll_param();
+
+	/* Moving to the right sysclk and ES rev base */
+	ptr = ptr + (3 * clk_index) + sil_index;
+
+	/* MPU DPLL (unlocked already) */
+
+	/* M2 (MPU_DPLL_CLKOUT_DIV) : CM_CLKSEL2_PLL_MPU[0:4] */
+	clrsetbits_le32(&prcm_base->clksel2_pll_mpu,
+			0x0000001F, ptr->m2);
+
+	/* M (MPU_DPLL_MULT) : CM_CLKSEL2_PLL_MPU[8:18] */
+	clrsetbits_le32(&prcm_base->clksel1_pll_mpu,
+			0x0007FF00, ptr->m << 8);
+
+	/* N (MPU_DPLL_DIV) : CM_CLKSEL2_PLL_MPU[0:6] */
+	clrsetbits_le32(&prcm_base->clksel1_pll_mpu,
+			0x0000007F, ptr->n);
+
+	/* FREQSEL (MPU_DPLL_FREQSEL) : CM_CLKEN_PLL_MPU[4:7] */
+	clrsetbits_le32(&prcm_base->clken_pll_mpu,
+			0x000000F0, ptr->fsel << 4);
+}
+
+static void iva_init_34xx(u32 sil_index, u32 clk_index)
+{
+	struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
+	dpll_param *ptr = (dpll_param *) get_iva_dpll_param();
+
+	/* Moving to the right sysclk and ES rev base */
+	ptr = ptr + (3 * clk_index) + sil_index;
+
+	/* IVA DPLL */
+	/* EN_IVA2_DPLL : CM_CLKEN_PLL_IVA2[0:2] */
+	clrsetbits_le32(&prcm_base->clken_pll_iva2,
+			0x00000007, PLL_STOP);
+	wait_on_value(ST_IVA2_CLK, 0, &prcm_base->idlest_pll_iva2, LDELAY);
+
+	/* M2 (IVA2_DPLL_CLKOUT_DIV) : CM_CLKSEL2_PLL_IVA2[0:4] */
+	clrsetbits_le32(&prcm_base->clksel2_pll_iva2,
+			0x0000001F, ptr->m2);
+
+	/* M (IVA2_DPLL_MULT) : CM_CLKSEL1_PLL_IVA2[8:18] */
+	clrsetbits_le32(&prcm_base->clksel1_pll_iva2,
+			0x0007FF00, ptr->m << 8);
+
+	/* N (IVA2_DPLL_DIV) : CM_CLKSEL1_PLL_IVA2[0:6] */
+	clrsetbits_le32(&prcm_base->clksel1_pll_iva2,
+			0x0000007F, ptr->n);
+
+	/* FREQSEL (IVA2_DPLL_FREQSEL) : CM_CLKEN_PLL_IVA2[4:7] */
+	clrsetbits_le32(&prcm_base->clken_pll_iva2,
+			0x000000F0, ptr->fsel << 4);
+
+	/* LOCK MODE (EN_IVA2_DPLL) : CM_CLKEN_PLL_IVA2[0:2] */
+	clrsetbits_le32(&prcm_base->clken_pll_iva2,
+			0x00000007, PLL_LOCK);
+
+	wait_on_value(ST_IVA2_CLK, 1, &prcm_base->idlest_pll_iva2, LDELAY);
+}
+
+/*
+ * OMAP3630 specific functions
+ */
+
+static void dpll3_init_36xx(u32 sil_index, u32 clk_index)
+{
+	struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
+	dpll_param *ptr = (dpll_param *) get_36x_core_dpll_param();
+	void (*f_lock_pll) (u32, u32, u32, u32);
+	int xip_safe, p0, p1, p2, p3;
+
+	xip_safe = is_running_in_sram();
+
+	/* Moving it to the right sysclk base */
+	ptr += clk_index;
+
+	if (xip_safe) {
+		/* CORE DPLL */
+
+		/* Select relock bypass: CM_CLKEN_PLL[0:2] */
+		clrsetbits_le32(&prcm_base->clken_pll,
+				0x00000007, PLL_FAST_RELOCK_BYPASS);
+		wait_on_value(ST_CORE_CLK, 0, &prcm_base->idlest_ckgen,
+				LDELAY);
+
+		/* CM_CLKSEL1_EMU[DIV_DPLL3] */
+		clrsetbits_le32(&prcm_base->clksel1_emu,
+				0x001F0000, CORE_M3X2 << 16);
+
+		/* M2 (CORE_DPLL_CLKOUT_DIV): CM_CLKSEL1_PLL[27:31] */
+		clrsetbits_le32(&prcm_base->clksel1_pll,
+				0xF8000000, ptr->m2 << 27);
+
+		/* M (CORE_DPLL_MULT): CM_CLKSEL1_PLL[16:26] */
+		clrsetbits_le32(&prcm_base->clksel1_pll,
+				0x07FF0000, ptr->m << 16);
+
+		/* N (CORE_DPLL_DIV): CM_CLKSEL1_PLL[8:14] */
+		clrsetbits_le32(&prcm_base->clksel1_pll,
+				0x00007F00, ptr->n << 8);
+
+		/* Source is the CM_96M_FCLK: CM_CLKSEL1_PLL[6] */
+		clrbits_le32(&prcm_base->clksel1_pll, 0x00000040);
+
+		/* SSI */
+		clrsetbits_le32(&prcm_base->clksel_core,
+				0x00000F00, CORE_SSI_DIV << 8);
+		/* FSUSB */
+		clrsetbits_le32(&prcm_base->clksel_core,
+				0x00000030, CORE_FUSB_DIV << 4);
+		/* L4 */
+		clrsetbits_le32(&prcm_base->clksel_core,
+				0x0000000C, CORE_L4_DIV << 2);
+		/* L3 */
+		clrsetbits_le32(&prcm_base->clksel_core,
+				0x00000003, CORE_L3_DIV);
+		/* GFX */
+		clrsetbits_le32(&prcm_base->clksel_gfx,
+				0x00000007, GFX_DIV_36X);
+		/* RESET MGR */
+		clrsetbits_le32(&prcm_base->clksel_wkup,
+				0x00000006, WKUP_RSM << 1);
+		/* FREQSEL (CORE_DPLL_FREQSEL): CM_CLKEN_PLL[4:7] */
+		clrsetbits_le32(&prcm_base->clken_pll,
+				0x000000F0, ptr->fsel << 4);
+		/* LOCK MODE */
+		clrsetbits_le32(&prcm_base->clken_pll,
+				0x00000007, 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.
+		 */
+		f_lock_pll = (void *) (SRAM_CLK_CODE);
+
+		p0 = readl(&prcm_base->clken_pll);
+		clrsetbits_le32(&p0, 0x00000007, PLL_FAST_RELOCK_BYPASS);
+		/* FREQSEL (CORE_DPLL_FREQSEL): CM_CLKEN_PLL[4:7] */
+		clrsetbits_le32(&p0, 0x000000F0, ptr->fsel << 4);
+
+		p1 = readl(&prcm_base->clksel1_pll);
+		/* M2 (CORE_DPLL_CLKOUT_DIV): CM_CLKSEL1_PLL[27:31] */
+		clrsetbits_le32(&p1, 0xF8000000, ptr->m2 << 27);
+		/* M (CORE_DPLL_MULT): CM_CLKSEL1_PLL[16:26] */
+		clrsetbits_le32(&p1, 0x07FF0000, ptr->m << 16);
+		/* N (CORE_DPLL_DIV): CM_CLKSEL1_PLL[8:14] */
+		clrsetbits_le32(&p1, 0x00007F00, ptr->n << 8);
+		/* Source is the CM_96M_FCLK: CM_CLKSEL1_PLL[6] */
+		clrbits_le32(&p1, 0x00000040);
+
+		p2 = readl(&prcm_base->clksel_core);
+		/* SSI */
+		clrsetbits_le32(&p2, 0x00000F00, CORE_SSI_DIV << 8);
+		/* FSUSB */
+		clrsetbits_le32(&p2, 0x00000030, CORE_FUSB_DIV << 4);
+		/* L4 */
+		clrsetbits_le32(&p2, 0x0000000C, CORE_L4_DIV << 2);
+		/* L3 */
+		clrsetbits_le32(&p2, 0x00000003, CORE_L3_DIV);
+
+		p3 = (u32)&prcm_base->idlest_ckgen;
+
+		(*f_lock_pll) (p0, p1, p2, p3);
+	}
+}
+
+static void dpll4_init_36xx(u32 sil_index, u32 clk_index)
+{
+	struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
+	struct dpll_per_36x_param *ptr;
+
+	ptr = (struct dpll_per_36x_param *)get_36x_per_dpll_param();
+
+	/* Moving it to the right sysclk base */
+	ptr += clk_index;
+
+	/* EN_PERIPH_DPLL: CM_CLKEN_PLL[16:18] */
+	clrsetbits_le32(&prcm_base->clken_pll, 0x00070000, PLL_STOP << 16);
+	wait_on_value(ST_PERIPH_CLK, 0, &prcm_base->idlest_ckgen, LDELAY);
+
+	/* M6 (DIV_DPLL4): CM_CLKSEL1_EMU[24:29] */
+	clrsetbits_le32(&prcm_base->clksel1_emu, 0x3F000000, ptr->m6 << 24);
+
+	/* M5 (CLKSEL_CAM): CM_CLKSEL1_EMU[0:5] */
+	clrsetbits_le32(&prcm_base->clksel_cam, 0x0000003F, ptr->m5);
+
+	/* M4 (CLKSEL_DSS1): CM_CLKSEL_DSS[0:5] */
+	clrsetbits_le32(&prcm_base->clksel_dss, 0x0000003F, ptr->m4);
+
+	/* M3 (CLKSEL_DSS1): CM_CLKSEL_DSS[8:13] */
+	clrsetbits_le32(&prcm_base->clksel_dss, 0x00003F00, ptr->m3 << 8);
+
+	/* M2 (DIV_96M): CM_CLKSEL3_PLL[0:4] */
+	clrsetbits_le32(&prcm_base->clksel3_pll, 0x0000001F, ptr->m2);
+
+	/* M (PERIPH_DPLL_MULT): CM_CLKSEL2_PLL[8:19] */
+	clrsetbits_le32(&prcm_base->clksel2_pll, 0x000FFF00, ptr->m << 8);
+
+	/* N (PERIPH_DPLL_DIV): CM_CLKSEL2_PLL[0:6] */
+	clrsetbits_le32(&prcm_base->clksel2_pll, 0x0000007F, ptr->n);
+
+	/* M2DIV (CLKSEL_96M): CM_CLKSEL_CORE[12:13] */
+	clrsetbits_le32(&prcm_base->clksel_core, 0x00003000, ptr->m2div << 12);
+
+	/* LOCK MODE (EN_PERIPH_DPLL): CM_CLKEN_PLL[16:18] */
+	clrsetbits_le32(&prcm_base->clken_pll, 0x00070000, PLL_LOCK << 16);
+	wait_on_value(ST_PERIPH_CLK, 2, &prcm_base->idlest_ckgen, LDELAY);
+}
+
+static void dpll5_init_36xx(u32 sil_index, u32 clk_index)
+{
+	struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
+	dpll_param *ptr = (dpll_param *) get_36x_per2_dpll_param();
+
+	/* Moving it to the right sysclk base */
+	ptr = ptr + clk_index;
+
+	/* PER2 DPLL (DPLL5) */
+	clrsetbits_le32(&prcm_base->clken2_pll, 0x00000007, PLL_STOP);
+	wait_on_value(1, 0, &prcm_base->idlest2_ckgen, LDELAY);
+	/* set M2 (usbtll_fck) */
+	clrsetbits_le32(&prcm_base->clksel5_pll, 0x0000001F, ptr->m2);
+	/* set m (11-bit multiplier) */
+	clrsetbits_le32(&prcm_base->clksel4_pll, 0x0007FF00, ptr->m << 8);
+	/* set n (7-bit divider)*/
+	clrsetbits_le32(&prcm_base->clksel4_pll, 0x0000007F, ptr->n);
+	/* lock mode */
+	clrsetbits_le32(&prcm_base->clken2_pll, 0x00000007, PLL_LOCK);
+	wait_on_value(1, 1, &prcm_base->idlest2_ckgen, LDELAY);
+}
+
+static void mpu_init_36xx(u32 sil_index, u32 clk_index)
+{
+	struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
+	dpll_param *ptr = (dpll_param *) get_36x_mpu_dpll_param();
+
+	/* Moving to the right sysclk */
+	ptr += clk_index;
+
+	/* MPU DPLL (unlocked already */
+
+	/* M2 (MPU_DPLL_CLKOUT_DIV) : CM_CLKSEL2_PLL_MPU[0:4] */
+	clrsetbits_le32(&prcm_base->clksel2_pll_mpu, 0x0000001F, ptr->m2);
+
+	/* M (MPU_DPLL_MULT) : CM_CLKSEL2_PLL_MPU[8:18] */
+	clrsetbits_le32(&prcm_base->clksel1_pll_mpu, 0x0007FF00, ptr->m << 8);
+
+	/* N (MPU_DPLL_DIV) : CM_CLKSEL2_PLL_MPU[0:6] */
+	clrsetbits_le32(&prcm_base->clksel1_pll_mpu, 0x0000007F, ptr->n);
+}
+
+static void iva_init_36xx(u32 sil_index, u32 clk_index)
+{
+	struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
+	dpll_param *ptr = (dpll_param *)get_36x_iva_dpll_param();
+
+	/* Moving to the right sysclk */
+	ptr += clk_index;
+
+	/* IVA DPLL */
+	/* EN_IVA2_DPLL : CM_CLKEN_PLL_IVA2[0:2] */
+	clrsetbits_le32(&prcm_base->clken_pll_iva2, 0x00000007, PLL_STOP);
+	wait_on_value(ST_IVA2_CLK, 0, &prcm_base->idlest_pll_iva2, LDELAY);
+
+	/* M2 (IVA2_DPLL_CLKOUT_DIV) : CM_CLKSEL2_PLL_IVA2[0:4] */
+	clrsetbits_le32(&prcm_base->clksel2_pll_iva2, 0x0000001F, ptr->m2);
+
+	/* M (IVA2_DPLL_MULT) : CM_CLKSEL1_PLL_IVA2[8:18] */
+	clrsetbits_le32(&prcm_base->clksel1_pll_iva2, 0x0007FF00, ptr->m << 8);
+
+	/* N (IVA2_DPLL_DIV) : CM_CLKSEL1_PLL_IVA2[0:6] */
+	clrsetbits_le32(&prcm_base->clksel1_pll_iva2, 0x0000007F, ptr->n);
+
+	/* LOCK (MODE (EN_IVA2_DPLL) : CM_CLKEN_PLL_IVA2[0:2] */
+	clrsetbits_le32(&prcm_base->clken_pll_iva2, 0x00000007, PLL_LOCK);
+
+	wait_on_value(ST_IVA2_CLK, 1, &prcm_base->idlest_pll_iva2, LDELAY);
+}
+
+/******************************************************************************
+ * prcm_init() - inits clocks for PRCM as defined in clocks.h
+ *               called from SRAM, or Flash (using temp SRAM stack).
+ *****************************************************************************/
+void prcm_init(void)
+{
+	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;
+
+	/*
+	 * 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 */
+	clrsetbits_le32(&prm_base->clksel, 0x00000007, sys_clkin_sel);
+
+	/* If the input clock is greater than 19.2M always divide/2 */
+	if (sys_clkin_sel > 2) {
+		/* input clock divider */
+		clrsetbits_le32(&prm_base->clksrc_ctrl, 0x000000C0, 2 << 6);
+		clk_index = sys_clkin_sel / 2;
+	} else {
+		/* input clock divider */
+		clrsetbits_le32(&prm_base->clksrc_ctrl, 0x000000C0, 1 << 6);
+		clk_index = sys_clkin_sel;
+	}
+
+	if (get_cpu_family() == CPU_OMAP36XX) {
+		/*
+		 * In warm reset conditions on OMAP36xx/AM/DM37xx
+		 * the rom code incorrectly sets the DPLL4 clock
+		 * input divider to /6.5. Section 3.5.3.3.3.2.1 of
+		 * the AM/DM37x TRM explains that the /6.5 divider
+		 * is used only when the input clock is 13MHz.
+		 *
+		 * If the part is in this cpu family *and* the input
+		 * clock *is not* 13 MHz, then reset the DPLL4 clock
+		 * input divider to /1 as it should never set to /6.5
+		 * in this case.
+		 */
+		if (sys_clkin_sel != 1) {	/* 13 MHz */
+			/* Bit 8: DPLL4_CLKINP_DIV */
+			clrbits_le32(&prm_base->clksrc_ctrl, 0x00000100);
+		}
+
+		/* Unlock MPU DPLL (slows things down, and needed later) */
+		clrsetbits_le32(&prcm_base->clken_pll_mpu,
+				0x00000007, PLL_LOW_POWER_BYPASS);
+		wait_on_value(ST_MPU_CLK, 0, &prcm_base->idlest_pll_mpu,
+				LDELAY);
+
+		dpll3_init_36xx(0, clk_index);
+		dpll4_init_36xx(0, clk_index);
+		dpll5_init_36xx(0, clk_index);
+		iva_init_36xx(0, clk_index);
+		mpu_init_36xx(0, clk_index);
+
+		/* Lock MPU DPLL to set frequency */
+		clrsetbits_le32(&prcm_base->clken_pll_mpu,
+				0x00000007, PLL_LOCK);
+		wait_on_value(ST_MPU_CLK, 1, &prcm_base->idlest_pll_mpu,
+				LDELAY);
+	} else {
+		/*
+		 * 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_family() == CPU_OMAP34XX)
+				&& (get_cpu_rev() >= CPU_3XX_ES20)) ||
+			(get_cpu_family() == CPU_AM35XX))
+			sil_index = 1;
+
+		/* Unlock MPU DPLL (slows things down, and needed later) */
+		clrsetbits_le32(&prcm_base->clken_pll_mpu,
+				0x00000007, PLL_LOW_POWER_BYPASS);
+		wait_on_value(ST_MPU_CLK, 0, &prcm_base->idlest_pll_mpu,
+				LDELAY);
+
+		dpll3_init_34xx(sil_index, clk_index);
+		dpll4_init_34xx(sil_index, clk_index);
+		dpll5_init_34xx(sil_index, clk_index);
+		if (get_cpu_family() != CPU_AM35XX)
+			iva_init_34xx(sil_index, clk_index);
+
+		mpu_init_34xx(sil_index, clk_index);
+
+		/* Lock MPU DPLL to set frequency */
+		clrsetbits_le32(&prcm_base->clken_pll_mpu,
+				0x00000007, PLL_LOCK);
+		wait_on_value(ST_MPU_CLK, 1, &prcm_base->idlest_pll_mpu,
+				LDELAY);
+	}
+
+	/* Set up GPTimers to sys_clk source only */
+	setbits_le32(&prcm_base->clksel_per, 0x000000FF);
+	setbits_le32(&prcm_base->clksel_wkup, 1);
+
+	sdelay(5000);
+}
+
+/*
+ * Enable usb ehci uhh, tll clocks
+ */
+void ehci_clocks_enable(void)
+{
+	struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
+
+	/* Enable USBHOST_L3_ICLK (USBHOST_MICLK) */
+	setbits_le32(&prcm_base->iclken_usbhost, 1);
+	/*
+	 * Enable USBHOST_48M_FCLK (USBHOST_FCLK1)
+	 * and USBHOST_120M_FCLK (USBHOST_FCLK2)
+	 */
+	setbits_le32(&prcm_base->fclken_usbhost, 0x00000003);
+	/* Enable USBTTL_ICLK */
+	setbits_le32(&prcm_base->iclken3_core, 0x00000004);
+	/* Enable USBTTL_FCLK */
+	setbits_le32(&prcm_base->fclken3_core, 0x00000004);
+}
+
+/******************************************************************************
+ * 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. */
+	setbits_le32(&prcm_base->clksel_per, 0x01);	/* GPT2 = sys clk */
+	setbits_le32(&prcm_base->iclken_per, 0x08);	/* ICKen GPT2 */
+	setbits_le32(&prcm_base->fclken_per, 0x08);	/* FCKen GPT2 */
+
+	/* Enable GP9 timer. */
+	setbits_le32(&prcm_base->clksel_per, 0x80);	/* GPT9 = 32kHz clk */
+	setbits_le32(&prcm_base->iclken_per, 0x400);	/* ICKen GPT9 */
+	setbits_le32(&prcm_base->fclken_per, 0x400);	/* FCKen GPT9 */
+
+#ifdef CONFIG_SYS_NS16550
+	/* Enable UART1 clocks */
+	setbits_le32(&prcm_base->fclken1_core, 0x00002000);
+	setbits_le32(&prcm_base->iclken1_core, 0x00002000);
+
+	/* Enable UART2 clocks */
+	setbits_le32(&prcm_base->fclken1_core, 0x00004000);
+	setbits_le32(&prcm_base->iclken1_core, 0x00004000);
+
+	/* UART 3 Clocks */
+	setbits_le32(&prcm_base->fclken_per, 0x00000800);
+	setbits_le32(&prcm_base->iclken_per, 0x00000800);
+#endif
+
+#ifdef CONFIG_OMAP3_GPIO_2
+	setbits_le32(&prcm_base->fclken_per, 0x00002000);
+	setbits_le32(&prcm_base->iclken_per, 0x00002000);
+#endif
+#ifdef CONFIG_OMAP3_GPIO_3
+	setbits_le32(&prcm_base->fclken_per, 0x00004000);
+	setbits_le32(&prcm_base->iclken_per, 0x00004000);
+#endif
+#ifdef CONFIG_OMAP3_GPIO_4
+	setbits_le32(&prcm_base->fclken_per, 0x00008000);
+	setbits_le32(&prcm_base->iclken_per, 0x00008000);
+#endif
+#ifdef CONFIG_OMAP3_GPIO_5
+	setbits_le32(&prcm_base->fclken_per, 0x00010000);
+	setbits_le32(&prcm_base->iclken_per, 0x00010000);
+#endif
+#ifdef CONFIG_OMAP3_GPIO_6
+	setbits_le32(&prcm_base->fclken_per, 0x00020000);
+	setbits_le32(&prcm_base->iclken_per, 0x00020000);
+#endif
+
+#ifdef CONFIG_SYS_I2C_OMAP34XX
+	/* Turn on all 3 I2C clocks */
+	setbits_le32(&prcm_base->fclken1_core, 0x00038000);
+	setbits_le32(&prcm_base->iclken1_core, 0x00038000); /* I2C1,2,3 = on */
+#endif
+	/* Enable the ICLK for 32K Sync Timer as its used in udelay */
+	setbits_le32(&prcm_base->iclken_wkup, 0x00000004);
+
+	if (get_cpu_family() != CPU_AM35XX)
+		out_le32(&prcm_base->fclken_iva2, FCK_IVA2_ON);
+
+	out_le32(&prcm_base->fclken1_core, FCK_CORE1_ON);
+	out_le32(&prcm_base->iclken1_core, ICK_CORE1_ON);
+	out_le32(&prcm_base->iclken2_core, ICK_CORE2_ON);
+	out_le32(&prcm_base->fclken_wkup, FCK_WKUP_ON);
+	out_le32(&prcm_base->iclken_wkup, ICK_WKUP_ON);
+	out_le32(&prcm_base->fclken_dss, FCK_DSS_ON);
+	out_le32(&prcm_base->iclken_dss, ICK_DSS_ON);
+	if (get_cpu_family() != CPU_AM35XX) {
+		out_le32(&prcm_base->fclken_cam, FCK_CAM_ON);
+		out_le32(&prcm_base->iclken_cam, ICK_CAM_ON);
+	}
+
+	sdelay(1000);
+}
diff --git a/arch/arm/mach-omap2/omap3/emac.c b/arch/arm/mach-omap2/omap3/emac.c
new file mode 100644
index 0000000..37f4b8b
--- /dev/null
+++ b/arch/arm/mach-omap2/omap3/emac.c
@@ -0,0 +1,29 @@
+/*
+ *
+ * DaVinci EMAC initialization.
+ *
+ * (C) Copyright 2011, Ilya Yanok, Emcraft Systems
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <netdev.h>
+#include <asm/io.h>
+#include <asm/arch/am35x_def.h>
+
+/*
+ * Initializes on-chip ethernet controllers.
+ * to override, implement board_eth_init()
+ */
+int cpu_eth_init(bd_t *bis)
+{
+	u32 reset;
+
+	/* ensure that the module is out of reset */
+	reset = readl(&am35x_scm_general_regs->ip_sw_reset);
+	reset &= ~CPGMACSS_SW_RST;
+	writel(reset, &am35x_scm_general_regs->ip_sw_reset);
+
+	return davinci_emac_initialize();
+}
diff --git a/arch/arm/mach-omap2/omap3/emif4.c b/arch/arm/mach-omap2/omap3/emif4.c
new file mode 100644
index 0000000..a2aadc9
--- /dev/null
+++ b/arch/arm/mach-omap2/omap3/emif4.c
@@ -0,0 +1,165 @@
+/*
+ * Author :
+ *     Vaibhav Hiremath <hvaibhav@ti.com>
+ *
+ * Based on mem.c and sdrc.c
+ *
+ * Copyright (C) 2010
+ * Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/mem.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/emif4.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+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 = 0;
+
+	/* TODO: Calculate the size based on EMIF4 configuration */
+	if (cs == CS0)
+		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.
+ */
+static 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)
+{
+	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->ram_size = size0 + size1;
+	return 0;
+}
+
+void dram_init_banksize (void)
+{
+	unsigned int size0 = 0, size1 = 0;
+
+	size0 = get_sdr_cs_size(CS0);
+	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;
+}
+
+/*
+ * mem_init() -
+ *  - Initialize memory subsystem
+ */
+void mem_init(void)
+{
+	do_emif4_init();
+}
diff --git a/arch/arm/mach-omap2/omap3/lowlevel_init.S b/arch/arm/mach-omap2/omap3/lowlevel_init.S
new file mode 100644
index 0000000..1e58772
--- /dev/null
+++ b/arch/arm/mach-omap2/omap3/lowlevel_init.S
@@ -0,0 +1,476 @@
+/*
+ * 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>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <config.h>
+#include <asm/arch/mem.h>
+#include <asm/arch/clocks_omap3.h>
+#include <linux/linkage.h>
+
+/*
+ * Funtion for making PPA HAL API calls in secure devices
+ * Input:
+ *	R0 - Service ID
+ *	R1 - paramer list
+ */
+ENTRY(do_omap3_emu_romcode_call)
+	PUSH {r4-r12, lr} @ Save all registers from ROM code!
+	MOV r12, r0	@ Copy the Secure Service ID in R12
+	MOV r3, r1	@ Copy the pointer to va_list in R3
+	MOV r1, #0	@ Process ID - 0
+	MOV r2, #OMAP3_EMU_HAL_START_HAL_CRITICAL	@ Copy the pointer
+							@ to va_list in R3
+	MOV r6, #0xFF	@ Indicate new Task call
+	mcr     p15, 0, r0, c7, c10, 4	@ DSB
+	mcr     p15, 0, r0, c7, c10, 5	@ DMB
+	.word	0xe1600071	@ SMC #1 to call PPA service - hand assembled
+				@ because we use -march=armv5
+	POP {r4-r12, pc}
+ENDPROC(do_omap3_emu_romcode_call)
+
+#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.
+ *************************************************************************/
+ENTRY(cpy_clk_code)
+	/* Copy DPLL code into SRAM */
+	adr	r0, go_to_speed		/* copy from start of go_to_speed... */
+	adr	r2, lowlevel_init	/* ... up to start of low_level_init */
+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] */
+	blo	next2
+	mov	pc, lr			/* back to caller */
+ENDPROC(cpy_clk_code)
+
+/* ***************************************************************************
+ *  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.
+ ****************************************************************************/
+ENTRY(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 */
+ENDPROC(go_to_speed)
+
+_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
+
+ENTRY(lowlevel_init)
+	ldr	sp, SRAM_STACK
+	str	ip, [sp]	/* stash ip register */
+	mov	ip, lr		/* save link reg across call */
+#if !defined(CONFIG_SYS_NAND_BOOT) && !defined(CONFIG_SYS_ONENAND_BOOT)
+/*
+ * No need to copy/exec the clock code - DPLL adjust already done
+ * in NAND/oneNAND Boot.
+ */
+	ldr	r1, =SRAM_CLK_CODE
+	bl	cpy_clk_code
+#endif /* NAND Boot */
+	mov	lr, ip		/* restore link reg */
+	ldr	ip, [sp]	/* restore save ip */
+	/* tail-call s_init to setup pll, mux, memory */
+	b	s_init
+
+ENDPROC(lowlevel_init)
+
+	/* 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
+
+/* PER2 DPLL values */
+per2_dpll_param:
+/* 12MHz */
+.word PER2_M_12, PER2_N_12, PER2_FSEL_12, PER2_M2_12
+
+/* 13MHz */
+.word PER2_M_13, PER2_N_13, PER2_FSEL_13, PER2_M2_13
+
+/* 19.2MHz */
+.word PER2_M_19P2, PER2_N_19P2, PER2_FSEL_19P2, PER2_M2_19P2
+
+/* 26MHz */
+.word PER2_M_26, PER2_N_26, PER2_FSEL_26, PER2_M2_26
+
+/* 38.4MHz */
+.word PER2_M_38P4, PER2_N_38P4, PER2_FSEL_38P4, PER2_M2_38P4
+
+.globl get_per2_dpll_param
+get_per2_dpll_param:
+	adr	r0, per2_dpll_param
+	mov	pc, lr
+
+/*
+ * Tables for 36XX/37XX devices
+ *
+ */
+mpu_36x_dpll_param:
+/* 12MHz */
+.word 50, 0, 0, 1
+/* 13MHz */
+.word 600, 12, 0, 1
+/* 19.2MHz */
+.word 125, 3, 0, 1
+/* 26MHz */
+.word 300, 12, 0, 1
+/* 38.4MHz */
+.word 125, 7, 0, 1
+
+iva_36x_dpll_param:
+/* 12MHz */
+.word 130, 2, 0, 1
+/* 13MHz */
+.word 20, 0, 0, 1
+/* 19.2MHz */
+.word 325, 11, 0, 1
+/* 26MHz */
+.word 10, 0, 0, 1
+/* 38.4MHz */
+.word 325, 23, 0, 1
+
+core_36x_dpll_param:
+/* 12MHz */
+.word 100, 2, 0, 1
+/* 13MHz */
+.word 400, 12, 0, 1
+/* 19.2MHz */
+.word 375, 17, 0, 1
+/* 26MHz */
+.word 200, 12, 0, 1
+/* 38.4MHz */
+.word 375, 35, 0, 1
+
+per_36x_dpll_param:
+/*    SYSCLK    M       N      M2      M3      M4     M5      M6      m2DIV */
+.word 12000,    360,    4,     9,      16,     5,     4,      3,      1
+.word 13000,    864,   12,     9,      16,     9,     4,      3,      1
+.word 19200,    360,    7,     9,      16,     5,     4,      3,      1
+.word 26000,    432,   12,     9,      16,     9,     4,      3,      1
+.word 38400,    360,   15,     9,      16,     5,     4,      3,      1
+
+per2_36x_dpll_param:
+/* 12MHz */
+.word PER2_36XX_M_12, PER2_36XX_N_12, 0, PER2_36XX_M2_12
+/* 13MHz */
+.word PER2_36XX_M_13, PER2_36XX_N_13, 0, PER2_36XX_M2_13
+/* 19.2MHz */
+.word PER2_36XX_M_19P2, PER2_36XX_N_19P2, 0, PER2_36XX_M2_19P2
+/* 26MHz */
+.word PER2_36XX_M_26, PER2_36XX_N_26, 0, PER2_36XX_M2_26
+/* 38.4MHz */
+.word PER2_36XX_M_38P4, PER2_36XX_N_38P4, 0, PER2_36XX_M2_38P4
+
+
+ENTRY(get_36x_mpu_dpll_param)
+	adr	r0, mpu_36x_dpll_param
+	mov	pc, lr
+ENDPROC(get_36x_mpu_dpll_param)
+
+ENTRY(get_36x_iva_dpll_param)
+	adr	r0, iva_36x_dpll_param
+	mov	pc, lr
+ENDPROC(get_36x_iva_dpll_param)
+
+ENTRY(get_36x_core_dpll_param)
+	adr	r0, core_36x_dpll_param
+	mov	pc, lr
+ENDPROC(get_36x_core_dpll_param)
+
+ENTRY(get_36x_per_dpll_param)
+	adr	r0, per_36x_dpll_param
+	mov	pc, lr
+ENDPROC(get_36x_per_dpll_param)
+
+ENTRY(get_36x_per2_dpll_param)
+	adr	r0, per2_36x_dpll_param
+	mov	pc, lr
+ENDPROC(get_36x_per2_dpll_param)
diff --git a/arch/arm/mach-omap2/omap3/sdrc.c b/arch/arm/mach-omap2/omap3/sdrc.c
new file mode 100644
index 0000000..4f15ac9
--- /dev/null
+++ b/arch/arm/mach-omap2/omap3/sdrc.c
@@ -0,0 +1,241 @@
+/*
+ * 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/
+ *
+ * Copyright (C) 2011
+ * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
+ *
+ * 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>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/mem.h>
+#include <asm/arch/sys_proto.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+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 -
+ * - When we have CS1 populated we want to have it mapped after cs0 to allow
+ *   command line mem=xyz use all memory with out discontinuous support
+ *   compiled in.  We could do it in the ATAG, but there really is two banks...
+ */
+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 & 0x300) << 17;
+
+	return offset;
+}
+
+/*
+ * write_sdrc_timings -
+ *  - Takes CS and associated timings and initalize SDRAM
+ *  - Test CS to make sure it's OK for use
+ */
+static void write_sdrc_timings(u32 cs, struct sdrc_actim *sdrc_actim_base,
+			struct board_sdrc_timings *timings)
+{
+	/* Setup timings we got from the board. */
+	writel(timings->mcfg, &sdrc_base->cs[cs].mcfg);
+	writel(timings->ctrla, &sdrc_actim_base->ctrla);
+	writel(timings->ctrlb, &sdrc_actim_base->ctrlb);
+	writel(timings->rfr_ctrl, &sdrc_base->cs[cs].rfr_ctrl);
+	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);
+	writel(timings->mr, &sdrc_base->cs[cs].mr);
+
+	/*
+	 * Test ram in this bank
+	 * Disable if bad or not present
+	 */
+	if (!mem_ok(cs))
+		writel(0, &sdrc_base->cs[cs].mcfg);
+}
+
+/*
+ * do_sdrc_init -
+ *  - Code called once in C-Stack only context for CS0 and with early being
+ *    true 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_base0, *sdrc_actim_base1;
+	struct board_sdrc_timings timings;
+
+	sdrc_actim_base0 = (struct sdrc_actim *)SDRC_ACTIM_CTRL0_BASE;
+	sdrc_actim_base1 = (struct sdrc_actim *)SDRC_ACTIM_CTRL1_BASE;
+
+	/* set some default timings */
+	timings.sharing = SDRC_SHARING;
+
+	/*
+	 * When called in the early context this may be SPL and we will
+	 * need to set all of the timings.  This ends up being board
+	 * specific so we call a helper function to take care of this
+	 * for us.  Otherwise, to be safe, we need to copy the settings
+	 * from the first bank to the second.  We will setup CS0,
+	 * then set cs_cfg to the appropriate value then try and
+	 * setup CS1.
+	 */
+#ifdef CONFIG_SPL_BUILD
+	/* set/modify board-specific timings */
+	get_board_mem_timings(&timings);
+#endif
+	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(timings.sharing, &sdrc_base->sharing);
+
+		/* Disable Power Down of CKE because of 1 CKE on combo part */
+		writel(WAKEUPPROC | SRFRONRESET | PAGEPOLICY_HIGH,
+				&sdrc_base->power);
+
+		writel(ENADLL | DLLPHASE_90, &sdrc_base->dlla_ctrl);
+		sdelay(0x20000);
+#ifdef CONFIG_SPL_BUILD
+		write_sdrc_timings(CS0, sdrc_actim_base0, &timings);
+		make_cs1_contiguous();
+		write_sdrc_timings(CS1, sdrc_actim_base1, &timings);
+#endif
+
+	}
+
+	/*
+	 * If we aren't using SPL we have been loaded by some
+	 * other means which may not have correctly initialized
+	 * both CS0 and CS1 (such as some older versions of x-loader)
+	 * so we may be asked now to setup CS1.
+	 */
+	if (cs == CS1) {
+		timings.mcfg = readl(&sdrc_base->cs[CS0].mcfg),
+		timings.rfr_ctrl = readl(&sdrc_base->cs[CS0].rfr_ctrl);
+		timings.ctrla = readl(&sdrc_actim_base0->ctrla);
+		timings.ctrlb = readl(&sdrc_actim_base0->ctrlb);
+		timings.mr = readl(&sdrc_base->cs[CS0].mr);
+		write_sdrc_timings(cs, sdrc_actim_base1, &timings);
+	}
+}
+
+/*
+ * dram_init -
+ *  - Sets uboots idea of sdram size
+ */
+int dram_init(void)
+{
+	unsigned int size0 = 0, size1 = 0;
+
+	size0 = get_sdr_cs_size(CS0);
+	/*
+	 * We always need to have cs_cfg point at where the second
+	 * bank would be, if present.  Failure to do so can lead to
+	 * strange situations where memory isn't detected and
+	 * configured correctly.  CS0 will already have been setup
+	 * at this point.
+	 */
+	make_cs1_contiguous();
+	do_sdrc_init(CS1, NOT_EARLY);
+	size1 = get_sdr_cs_size(CS1);
+
+	gd->ram_size = size0 + size1;
+
+	return 0;
+}
+
+void dram_init_banksize (void)
+{
+	unsigned int size0 = 0, size1 = 0;
+
+	size0 = get_sdr_cs_size(CS0);
+	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;
+}
+
+/*
+ * 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/mach-omap2/omap3/spl_id_nand.c b/arch/arm/mach-omap2/omap3/spl_id_nand.c
new file mode 100644
index 0000000..0e2f0a2
--- /dev/null
+++ b/arch/arm/mach-omap2/omap3/spl_id_nand.c
@@ -0,0 +1,57 @@
+/*
+ * (C) Copyright 2011
+ * Texas Instruments, <www.ti.com>
+ *
+ * Author :
+ *     Tom Rini <trini@ti.com>
+ *
+ * Initial Code from:
+ *     Richard Woodruff <r-woodruff2@ti.com>
+ *     Jian Zhang <jzhang@ti.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <jffs2/load_kernel.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/omap_gpmc.h>
+#include <asm/io.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/mem.h>
+
+/*
+ * Many boards will want to know the results of the NAND_CMD_READID command
+ * in order to decide what to do about DDR initialization.  This function
+ * allows us to do that very early and to pass those results back to the
+ * board so it can make whatever decisions need to be made.
+ */
+int identify_nand_chip(int *mfr, int *id)
+{
+	int loops = 1000;
+
+	/* Make sure that we have setup GPMC for NAND correctly. */
+	set_gpmc_cs0(MTD_DEV_TYPE_NAND);
+
+	sdelay(2000);
+
+	/* Issue a RESET and then READID */
+	writeb(NAND_CMD_RESET, &gpmc_cfg->cs[0].nand_cmd);
+	writeb(NAND_CMD_STATUS, &gpmc_cfg->cs[0].nand_cmd);
+	while ((readl(&gpmc_cfg->cs[0].nand_dat) & NAND_STATUS_READY)
+	                                        != NAND_STATUS_READY) {
+		sdelay(100);
+		if (--loops == 0)
+			return 1;
+	}
+	writeb(NAND_CMD_READID, &gpmc_cfg->cs[0].nand_cmd);
+
+	/* Set the address to read to 0x0 */
+	writeb(0x0, &gpmc_cfg->cs[0].nand_adr);
+
+	/* Read off the manufacturer and device id. */
+	*mfr = readb(&gpmc_cfg->cs[0].nand_dat);
+	*id = readb(&gpmc_cfg->cs[0].nand_dat);
+
+	return 0;
+}
diff --git a/arch/arm/mach-omap2/omap3/sys_info.c b/arch/arm/mach-omap2/omap3/sys_info.c
new file mode 100644
index 0000000..6818fab
--- /dev/null
+++ b/arch/arm/mach-omap2/omap3/sys_info.c
@@ -0,0 +1,343 @@
+/*
+ * (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>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/mem.h>	/* get mem tables */
+#include <asm/arch/sys_proto.h>
+#include <asm/bootm.h>
+
+#include <i2c.h>
+#include <linux/compiler.h>
+
+extern omap3_sysinfo sysinfo;
+static struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
+
+#ifdef CONFIG_DISPLAY_CPUINFO
+static char *rev_s[CPU_3XX_MAX_REV] = {
+				"1.0",
+				"2.0",
+				"2.1",
+				"3.0",
+				"3.1",
+				"UNKNOWN",
+				"UNKNOWN",
+				"3.1.2"};
+
+/* this is the revision table for 37xx CPUs */
+static char *rev_s_37xx[CPU_37XX_MAX_REV] = {
+				"1.0",
+				"1.1",
+				"1.2"};
+#endif /* CONFIG_DISPLAY_CPUINFO */
+
+void omap_die_id(unsigned int *die_id)
+{
+	struct ctrl_id *id_base = (struct ctrl_id *)OMAP34XX_ID_L4_IO_BASE;
+
+	die_id[0] = readl(&id_base->die_id_0);
+	die_id[1] = readl(&id_base->die_id_1);
+	die_id[2] = readl(&id_base->die_id_2);
+	die_id[3] = readl(&id_base->die_id_3);
+}
+
+/******************************************
+ * get_cpu_type(void) - extract cpu info
+ ******************************************/
+u32 get_cpu_type(void)
+{
+	return readl(&ctrl_base->ctrl_omap_stat);
+}
+
+/******************************************
+ * get_cpu_id(void) - extract cpu id
+ * returns 0 for ES1.0, cpuid otherwise
+ ******************************************/
+u32 get_cpu_id(void)
+{
+	struct ctrl_id *id_base;
+	u32 cpuid = 0;
+
+	/*
+	 * 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 0;
+	} else {
+		/* Decode the IDs on > ES1.0 */
+		id_base = (struct ctrl_id *) OMAP34XX_ID_L4_IO_BASE;
+
+		cpuid = readl(&id_base->idcode);
+	}
+
+	return cpuid;
+}
+
+/******************************************
+ * get_cpu_family(void) - extract cpu info
+ ******************************************/
+u32 get_cpu_family(void)
+{
+	u16 hawkeye;
+	u32 cpu_family;
+	u32 cpuid = get_cpu_id();
+
+	if (cpuid == 0)
+		return CPU_OMAP34XX;
+
+	hawkeye = (cpuid >> HAWKEYE_SHIFT) & 0xffff;
+	switch (hawkeye) {
+	case HAWKEYE_OMAP34XX:
+		cpu_family = CPU_OMAP34XX;
+		break;
+	case HAWKEYE_AM35XX:
+		cpu_family = CPU_AM35XX;
+		break;
+	case HAWKEYE_OMAP36XX:
+		cpu_family = CPU_OMAP36XX;
+		break;
+	default:
+		cpu_family = CPU_OMAP34XX;
+	}
+
+	return cpu_family;
+}
+
+/******************************************
+ * get_cpu_rev(void) - extract version info
+ ******************************************/
+u32 get_cpu_rev(void)
+{
+	u32 cpuid = get_cpu_id();
+
+	if (cpuid == 0)
+		return CPU_3XX_ES10;
+	else
+		return (cpuid >> CPU_3XX_ID_SHIFT) & 0xf;
+}
+
+/*****************************************************************
+ * get_sku_id(void) - read sku_id to get info on max clock rate
+ *****************************************************************/
+u32 get_sku_id(void)
+{
+	struct ctrl_id *id_base = (struct ctrl_id *)OMAP34XX_ID_L4_IO_BASE;
+	return readl(&id_base->sku_id) & SKUID_CLK_MASK;
+}
+
+/***************************************************************************
+ *  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)
+ *************************************************************************/
+#ifdef CONFIG_REVISION_TAG
+u32 __weak get_board_rev(void)
+{
+	return 0x20;
+}
+#endif
+
+/********************************************************
+ *  get_base(); get upper addr of current execution
+ *******************************************************/
+static 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_family_s, *cpu_s, *sec_s, *max_clk;
+
+	switch (get_cpu_family()) {
+	case CPU_OMAP34XX:
+		cpu_family_s = "OMAP";
+		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;
+		}
+		if ((get_cpu_rev() >= CPU_3XX_ES31) &&
+		    (get_sku_id() == SKUID_CLK_720MHZ))
+			max_clk = "720 MHz";
+		else
+			max_clk = "600 MHz";
+
+		break;
+	case CPU_AM35XX:
+		cpu_family_s = "AM";
+		switch (get_cpu_type()) {
+		case AM3505:
+			cpu_s = "3505";
+			break;
+		case AM3517:
+			cpu_s = "3517";
+			break;
+		default:
+			cpu_s = "35XX";
+			break;
+		}
+		max_clk = "600 Mhz";
+		break;
+	case CPU_OMAP36XX:
+		cpu_family_s = "OMAP";
+		switch (get_cpu_type()) {
+		case OMAP3730:
+			cpu_s = "3630/3730";
+			break;
+		default:
+			cpu_s = "36XX/37XX";
+			break;
+		}
+		max_clk = "1 Ghz";
+		break;
+	default:
+		cpu_family_s = "OMAP";
+		cpu_s = "35XX";
+		max_clk = "600 Mhz";
+	}
+
+	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 = "?";
+	}
+
+	if (CPU_OMAP36XX == get_cpu_family())
+		printf("%s%s-%s ES%s, CPU-OPP2, L3-200MHz, Max CPU Clock %s\n",
+		       cpu_family_s, cpu_s, sec_s,
+		       rev_s_37xx[get_cpu_rev()], max_clk);
+	else
+		printf("%s%s-%s ES%s, CPU-OPP2, L3-165MHz, Max CPU Clock %s\n",
+			cpu_family_s, cpu_s, sec_s,
+			rev_s[get_cpu_rev()], max_clk);
+
+	return 0;
+}
+#endif	/* CONFIG_DISPLAY_CPUINFO */