Merge branch 'master' of git://git.denx.de/u-boot-arm

Conflicts:
	cpu/arm1176/cpu.c
	cpu/arm1176/start.S
	cpu/arm_cortexa8/s5pc1xx/Makefile
	cpu/arm_cortexa8/s5pc1xx/clock.c
	drivers/serial/serial_s5p.c
	include/asm-arm/arch-s5pc1xx/clk.h
	include/asm-arm/arch-s5pc1xx/gpio.h
	include/asm-arm/arch-s5pc1xx/uart.h

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

15 files changed, 2023 insertions, 0 deletions

diff --git a/arch/arm/cpu/arm720t/Makefile b/arch/arm/cpu/arm720t/Makefile
new file mode 100644
index 0000000..d5ac7d3
--- /dev/null
+++ b/arch/arm/cpu/arm720t/Makefile
@@ -0,0 +1,47 @@
+#
+# (C) Copyright 2000-2006
+# 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	= $(obj)lib$(CPU).a
+
+START	= start.o
+COBJS	= interrupts.o cpu.o
+
+SRCS	:= $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS) $(SOBJS))
+START	:= $(addprefix $(obj),$(START))
+
+all:	$(obj).depend $(START) $(LIB)
+
+$(LIB):	$(OBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/arch/arm/cpu/arm720t/config.mk b/arch/arm/cpu/arm720t/config.mk
new file mode 100644
index 0000000..3844c62
--- /dev/null
+++ b/arch/arm/cpu/arm720t/config.mk
@@ -0,0 +1,33 @@
+#
+# (C) Copyright 2002
+# Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+# Marius Groeger <mgroeger@sysgo.de>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+PLATFORM_RELFLAGS +=  -fno-common -ffixed-r8 -msoft-float
+
+PLATFORM_CPPFLAGS += -march=armv4 -mtune=arm7tdmi
+# =========================================================================
+#
+# Supply options according to compiler version
+#
+# =========================================================================
+PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))
diff --git a/arch/arm/cpu/arm720t/cpu.c b/arch/arm/cpu/arm720t/cpu.c
new file mode 100644
index 0000000..88c71bf
--- /dev/null
+++ b/arch/arm/cpu/arm720t/cpu.c
@@ -0,0 +1,90 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Alex Zuepke <azu@sysgo.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
+ */
+
+/*
+ * CPU specific code
+ */
+
+#include <common.h>
+#include <command.h>
+#include <clps7111.h>
+#include <asm/hardware.h>
+#include <asm/system.h>
+
+#if defined(CONFIG_IMPA7) || defined(CONFIG_EP7312) || defined(CONFIG_ARMADILLO)
+static void cache_flush(void);
+#endif
+
+int cleanup_before_linux (void)
+{
+	/*
+	 * this function is called just before we call linux
+	 * it prepares the processor for linux
+	 *
+	 * we turn off caches etc ...
+	 * and we set the CPU-speed to 73 MHz - see start.S for details
+	 */
+
+#if defined(CONFIG_IMPA7) || defined(CONFIG_EP7312) || defined(CONFIG_ARMADILLO)
+	disable_interrupts ();
+
+	/* turn off I-cache */
+	icache_disable();
+	dcache_disable();
+
+	/* flush I-cache */
+	cache_flush();
+#ifdef CONFIG_ARM7_REVD
+	/* go to high speed */
+	IO_SYSCON3 = (IO_SYSCON3 & ~CLKCTL) | CLKCTL_73;
+#endif
+#elif defined(CONFIG_NETARM) || defined(CONFIG_S3C4510B) || defined(CONFIG_LPC2292)
+	disable_interrupts ();
+	/* Nothing more needed */
+#elif defined(CONFIG_INTEGRATOR) && defined(CONFIG_ARCH_INTEGRATOR)
+	/* No cleanup before linux for IntegratorAP/CM720T as yet */
+#else
+#error No cleanup_before_linux() defined for this CPU type
+#endif
+	return 0;
+}
+
+#if defined(CONFIG_IMPA7) || defined(CONFIG_EP7312) || defined(CONFIG_ARMADILLO)
+/* flush I/D-cache */
+static void cache_flush (void)
+{
+	unsigned long i = 0;
+
+	asm ("mcr p15, 0, %0, c7, c5, 0": :"r" (i));
+}
+#elif defined(CONFIG_INTEGRATOR) && defined(CONFIG_ARCH_INTEGRATOR)
+	/* No specific cache setup for IntegratorAP/CM720T as yet */
+	void icache_enable (void)
+	{
+	}
+#endif
diff --git a/arch/arm/cpu/arm720t/interrupts.c b/arch/arm/cpu/arm720t/interrupts.c
new file mode 100644
index 0000000..eb8d425
--- /dev/null
+++ b/arch/arm/cpu/arm720t/interrupts.c
@@ -0,0 +1,316 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Alex Zuepke <azu@sysgo.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 <clps7111.h>
+#include <asm/proc-armv/ptrace.h>
+#include <asm/hardware.h>
+
+#ifndef CONFIG_NETARM
+/* we always count down the max. */
+#define TIMER_LOAD_VAL 0xffff
+/* macro to read the 16 bit timer */
+#define READ_TIMER (IO_TC1D & 0xffff)
+
+#ifdef CONFIG_LPC2292
+#undef READ_TIMER
+#define READ_TIMER (0xFFFFFFFF - GET32(T0TC))
+#endif
+
+#else
+#define IRQEN	(*(volatile unsigned int *)(NETARM_GEN_MODULE_BASE + NETARM_GEN_INTR_ENABLE))
+#define TM2CTRL (*(volatile unsigned int *)(NETARM_GEN_MODULE_BASE + NETARM_GEN_TIMER2_CONTROL))
+#define TM2STAT (*(volatile unsigned int *)(NETARM_GEN_MODULE_BASE + NETARM_GEN_TIMER2_STATUS))
+#define TIMER_LOAD_VAL NETARM_GEN_TSTAT_CTC_MASK
+#define READ_TIMER (TM2STAT & NETARM_GEN_TSTAT_CTC_MASK)
+#endif
+
+#ifdef CONFIG_S3C4510B
+/* require interrupts for the S3C4510B */
+# ifndef CONFIG_USE_IRQ
+#  error CONFIG_USE_IRQ _must_ be defined when using CONFIG_S3C4510B
+# else
+static struct _irq_handler IRQ_HANDLER[N_IRQS];
+# endif
+#endif	/* CONFIG_S3C4510B */
+
+#ifdef CONFIG_USE_IRQ
+void do_irq (struct pt_regs *pt_regs)
+{
+#if defined(CONFIG_S3C4510B)
+	unsigned int pending;
+
+	while ( (pending = GET_REG( REG_INTOFFSET)) != 0x54) {  /* sentinal value for no pending interrutps */
+		IRQ_HANDLER[pending>>2].m_func( IRQ_HANDLER[pending>>2].m_data);
+
+		/* clear pending interrupt */
+		PUT_REG( REG_INTPEND, (1<<(pending>>2)));
+	}
+#elif defined(CONFIG_INTEGRATOR) && defined(CONFIG_ARCH_INTEGRATOR)
+	/* No do_irq() for IntegratorAP/CM720T as yet */
+#elif defined(CONFIG_LPC2292)
+
+    void (*pfnct)(void);
+
+    pfnct = (void (*)(void))VICVectAddr;
+
+    (*pfnct)();
+#else
+#error do_irq() not defined for this CPU type
+#endif
+}
+#endif
+
+#ifdef CONFIG_S3C4510B
+static void default_isr( void *data) {
+	printf ("default_isr():  called for IRQ %d\n", (int)data);
+}
+
+static void timer_isr( void *data) {
+	unsigned int *pTime = (unsigned int *)data;
+
+	(*pTime)++;
+	if ( !(*pTime % (CONFIG_SYS_HZ/4))) {
+		/* toggle LED 0 */
+		PUT_REG( REG_IOPDATA, GET_REG(REG_IOPDATA) ^ 0x1);
+	}
+
+}
+#endif
+
+#if defined(CONFIG_INTEGRATOR) && defined(CONFIG_ARCH_INTEGRATOR)
+	/* Use IntegratorAP routines in board/integratorap.c */
+#else
+
+static ulong timestamp;
+static ulong lastdec;
+
+#if defined(CONFIG_USE_IRQ) && defined(CONFIG_S3C4510B)
+int arch_interrupt_init (void)
+{
+	int i;
+
+	/* install default interrupt handlers */
+	for ( i = 0; i < N_IRQS; i++) {
+		IRQ_HANDLER[i].m_data = (void *)i;
+		IRQ_HANDLER[i].m_func = default_isr;
+	}
+
+	/* configure interrupts for IRQ mode */
+	PUT_REG( REG_INTMODE, 0x0);
+	/* clear any pending interrupts */
+	PUT_REG( REG_INTPEND, 0x1FFFFF);
+
+	lastdec = 0;
+
+	/* install interrupt handler for timer */
+	IRQ_HANDLER[INT_TIMER0].m_data = (void *)&timestamp;
+	IRQ_HANDLER[INT_TIMER0].m_func = timer_isr;
+
+	return 0;
+}
+#endif
+
+int timer_init (void)
+{
+#if defined(CONFIG_NETARM)
+	/* disable all interrupts */
+	IRQEN = 0;
+
+	/* operate timer 2 in non-prescale mode */
+	TM2CTRL = ( NETARM_GEN_TIMER_SET_HZ(CONFIG_SYS_HZ) |
+		    NETARM_GEN_TCTL_ENABLE |
+		    NETARM_GEN_TCTL_INIT_COUNT(TIMER_LOAD_VAL));
+
+	/* set timer 2 counter */
+	lastdec = TIMER_LOAD_VAL;
+#elif defined(CONFIG_IMPA7) || defined(CONFIG_EP7312) || defined(CONFIG_ARMADILLO)
+	/* disable all interrupts */
+	IO_INTMR1 = 0;
+
+	/* operate timer 1 in prescale mode */
+	IO_SYSCON1 |= SYSCON1_TC1M;
+
+	/* select 2kHz clock source for timer 1 */
+	IO_SYSCON1 &= ~SYSCON1_TC1S;
+
+	/* set timer 1 counter */
+	lastdec = IO_TC1D = TIMER_LOAD_VAL;
+#elif defined(CONFIG_S3C4510B)
+	/* configure free running timer 0 */
+	PUT_REG( REG_TMOD, 0x0);
+	/* Stop timer 0 */
+	CLR_REG( REG_TMOD, TM0_RUN);
+
+	/* Configure for interval mode */
+	CLR_REG( REG_TMOD, TM1_TOGGLE);
+
+	/*
+	 * Load Timer data register with count down value.
+	 * count_down_val = CONFIG_SYS_SYS_CLK_FREQ/CONFIG_SYS_HZ
+	 */
+	PUT_REG( REG_TDATA0, (CONFIG_SYS_SYS_CLK_FREQ / CONFIG_SYS_HZ));
+
+	/*
+	 * Enable global interrupt
+	 * Enable timer0 interrupt
+	 */
+	CLR_REG( REG_INTMASK, ((1<<INT_GLOBAL) | (1<<INT_TIMER0)));
+
+	/* Start timer */
+	SET_REG( REG_TMOD, TM0_RUN);
+#elif defined(CONFIG_LPC2292)
+	PUT32(T0IR, 0);		/* disable all timer0 interrupts */
+	PUT32(T0TCR, 0);	/* disable timer0 */
+	PUT32(T0PR, CONFIG_SYS_SYS_CLK_FREQ / CONFIG_SYS_HZ);
+	PUT32(T0MCR, 0);
+	PUT32(T0TC, 0);
+	PUT32(T0TCR, 1);	/* enable timer0 */
+
+#else
+#error No timer_init() defined for this CPU type
+#endif
+	timestamp = 0;
+
+	return (0);
+}
+
+#endif /* ! IntegratorAP */
+
+/*
+ * timer without interrupts
+ */
+
+
+#if defined(CONFIG_IMPA7) || defined(CONFIG_EP7312) || defined(CONFIG_NETARM) || defined(CONFIG_ARMADILLO) || defined(CONFIG_LPC2292)
+
+void reset_timer (void)
+{
+	reset_timer_masked ();
+}
+
+ulong get_timer (ulong base)
+{
+	return get_timer_masked () - base;
+}
+
+void set_timer (ulong t)
+{
+	timestamp = t;
+}
+
+void __udelay (unsigned long usec)
+{
+	ulong tmo;
+
+	tmo = usec / 1000;
+	tmo *= CONFIG_SYS_HZ;
+	tmo /= 1000;
+
+	tmo += get_timer (0);
+
+	while (get_timer_masked () < tmo)
+#ifdef CONFIG_LPC2292
+		/* GJ - not sure whether this is really needed or a misunderstanding */
+		__asm__ __volatile__(" nop");
+#else
+		/*NOP*/;
+#endif
+}
+
+void reset_timer_masked (void)
+{
+	/* reset time */
+	lastdec = READ_TIMER;
+	timestamp = 0;
+}
+
+ulong get_timer_masked (void)
+{
+	ulong now = READ_TIMER;
+
+	if (lastdec >= now) {
+		/* normal mode */
+		timestamp += lastdec - now;
+	} else {
+		/* we have an overflow ... */
+		timestamp += lastdec + TIMER_LOAD_VAL - now;
+	}
+	lastdec = now;
+
+	return timestamp;
+}
+
+void udelay_masked (unsigned long usec)
+{
+	ulong tmo;
+	ulong endtime;
+	signed long diff;
+
+	if (usec >= 1000) {
+		tmo = usec / 1000;
+		tmo *= CONFIG_SYS_HZ;
+		tmo /= 1000;
+	} else {
+		tmo = usec * CONFIG_SYS_HZ;
+		tmo /= (1000*1000);
+	}
+
+	endtime = get_timer_masked () + tmo;
+
+	do {
+		ulong now = get_timer_masked ();
+		diff = endtime - now;
+	} while (diff >= 0);
+}
+
+#elif defined(CONFIG_S3C4510B)
+
+ulong get_timer (ulong base)
+{
+	return timestamp - base;
+}
+
+void __udelay (unsigned long usec)
+{
+	u32 ticks;
+
+	ticks = (usec * CONFIG_SYS_HZ) / 1000000;
+
+	ticks += get_timer (0);
+
+	while (get_timer (0) < ticks)
+		/*NOP*/;
+
+}
+
+#elif defined(CONFIG_INTEGRATOR) && defined(CONFIG_ARCH_INTEGRATOR)
+	/* No timer routines for IntegratorAP/CM720T as yet */
+#else
+#error Timer routines not defined for this CPU type
+#endif
diff --git a/arch/arm/cpu/arm720t/lpc2292/Makefile b/arch/arm/cpu/arm720t/lpc2292/Makefile
new file mode 100644
index 0000000..240f1e3
--- /dev/null
+++ b/arch/arm/cpu/arm720t/lpc2292/Makefile
@@ -0,0 +1,50 @@
+#
+# (C) Copyright 2000-2007
+# 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
+
+COBJS	= flash.o mmc.o mmc_hw.o spi.o
+SOBJS	= $(obj)iap_entry.o
+
+SRCS	:= $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+
+all:	$(obj).depend $(LIB)
+
+$(LIB):	$(OBJS) $(SOBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+
+# this MUST be compiled as thumb code!
+$(SOBJS):
+	$(CC) $(AFLAGS) -march=armv4t -c -o $(SOBJS) iap_entry.S
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/arch/arm/cpu/arm720t/lpc2292/flash.c b/arch/arm/cpu/arm720t/lpc2292/flash.c
new file mode 100644
index 0000000..3d2dc32
--- /dev/null
+++ b/arch/arm/cpu/arm720t/lpc2292/flash.c
@@ -0,0 +1,249 @@
+/*
+ * (C) Copyright 2006 Embedded Artists AB <www.embeddedartists.com>
+ *
+ * Modified to remove all but the IAP-command related code by
+ * Gary Jennejohn <garyj@denx.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/arch/hardware.h>
+
+/* IAP commands use 32 bytes at the top of CPU internal sram, we
+   use 512 bytes below that */
+#define COPY_BUFFER_LOCATION 0x40003de0
+
+#define IAP_LOCATION 0x7ffffff1
+#define IAP_CMD_PREPARE 50
+#define IAP_CMD_COPY 51
+#define IAP_CMD_ERASE 52
+#define IAP_CMD_CHECK 53
+#define IAP_CMD_ID 54
+#define IAP_CMD_VERSION 55
+#define IAP_CMD_COMPARE 56
+
+#define IAP_RET_CMD_SUCCESS 0
+
+static unsigned long command[5];
+static unsigned long result[2];
+
+extern void iap_entry(unsigned long * command, unsigned long * result);
+
+/*-----------------------------------------------------------------------
+ *
+ */
+static int get_flash_sector(flash_info_t * info, ulong flash_addr)
+{
+	int i;
+
+	for(i = 1; i < (info->sector_count); i++) {
+		if (flash_addr < (info->start[i]))
+			break;
+	}
+
+	return (i-1);
+}
+
+/*-----------------------------------------------------------------------
+ * This function assumes that flash_addr is aligned on 512 bytes boundary
+ * in flash. This function also assumes that prepare have been called
+ * for the sector in question.
+ */
+int lpc2292_copy_buffer_to_flash(flash_info_t * info, ulong flash_addr)
+{
+	int first_sector;
+	int last_sector;
+
+	first_sector = get_flash_sector(info, flash_addr);
+	last_sector = get_flash_sector(info, flash_addr + 512 - 1);
+
+	/* prepare sectors for write */
+	command[0] = IAP_CMD_PREPARE;
+	command[1] = first_sector;
+	command[2] = last_sector;
+	iap_entry(command, result);
+	if (result[0] != IAP_RET_CMD_SUCCESS) {
+		printf("IAP prepare failed\n");
+		return ERR_PROG_ERROR;
+	}
+
+	command[0] = IAP_CMD_COPY;
+	command[1] = flash_addr;
+	command[2] = COPY_BUFFER_LOCATION;
+	command[3] = 512;
+	command[4] = CONFIG_SYS_SYS_CLK_FREQ >> 10;
+	iap_entry(command, result);
+	if (result[0] != IAP_RET_CMD_SUCCESS) {
+		printf("IAP copy failed\n");
+		return 1;
+	}
+
+	return 0;
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+int lpc2292_flash_erase (flash_info_t * info, int s_first, int s_last)
+{
+	int flag;
+	int prot;
+	int sect;
+
+	prot = 0;
+	for (sect = s_first; sect <= s_last; ++sect) {
+		if (info->protect[sect]) {
+			prot++;
+		}
+	}
+	if (prot)
+		return ERR_PROTECTED;
+
+
+	flag = disable_interrupts();
+
+	printf ("Erasing %d sectors starting at sector %2d.\n"
+	"This make take some time ... ",
+	s_last - s_first + 1, s_first);
+
+	command[0] = IAP_CMD_PREPARE;
+	command[1] = s_first;
+	command[2] = s_last;
+	iap_entry(command, result);
+	if (result[0] != IAP_RET_CMD_SUCCESS) {
+		printf("IAP prepare failed\n");
+		return ERR_PROTECTED;
+	}
+
+	command[0] = IAP_CMD_ERASE;
+	command[1] = s_first;
+	command[2] = s_last;
+	command[3] = CONFIG_SYS_SYS_CLK_FREQ >> 10;
+	iap_entry(command, result);
+	if (result[0] != IAP_RET_CMD_SUCCESS) {
+		printf("IAP erase failed\n");
+		return ERR_PROTECTED;
+	}
+
+	if (flag)
+		enable_interrupts();
+
+	return ERR_OK;
+}
+
+int lpc2292_write_buff (flash_info_t * info, uchar * src, ulong addr,
+			ulong cnt)
+{
+	int first_copy_size;
+	int last_copy_size;
+	int first_block;
+	int last_block;
+	int nbr_mid_blocks;
+	uchar memmap_value;
+	ulong i;
+	uchar* src_org;
+	uchar* dst_org;
+	int ret = ERR_OK;
+
+	src_org = src;
+	dst_org = (uchar*)addr;
+
+	first_block = addr / 512;
+	last_block = (addr + cnt) / 512;
+	nbr_mid_blocks = last_block - first_block - 1;
+
+	first_copy_size = 512 - (addr % 512);
+	last_copy_size = (addr + cnt) % 512;
+
+	debug("\ncopy first block: (1) %lX -> %lX 0x200 bytes, "
+		"(2) %lX -> %lX 0x%X bytes, (3) %lX -> %lX 0x200 bytes\n",
+	(ulong)(first_block * 512),
+	(ulong)COPY_BUFFER_LOCATION,
+	(ulong)src,
+	(ulong)(COPY_BUFFER_LOCATION + 512 - first_copy_size),
+	first_copy_size,
+	(ulong)COPY_BUFFER_LOCATION,
+	(ulong)(first_block * 512));
+
+	/* copy first block */
+	memcpy((void*)COPY_BUFFER_LOCATION,
+		(void*)(first_block * 512), 512);
+	memcpy((void*)(COPY_BUFFER_LOCATION + 512 - first_copy_size),
+		src, first_copy_size);
+	lpc2292_copy_buffer_to_flash(info, first_block * 512);
+	src += first_copy_size;
+	addr += first_copy_size;
+
+	/* copy middle blocks */
+	for (i = 0; i < nbr_mid_blocks; i++) {
+		debug("copy middle block: %lX -> %lX 512 bytes, "
+		"%lX -> %lX 512 bytes\n",
+		(ulong)src,
+		(ulong)COPY_BUFFER_LOCATION,
+		(ulong)COPY_BUFFER_LOCATION,
+		(ulong)addr);
+
+		memcpy((void*)COPY_BUFFER_LOCATION, src, 512);
+		lpc2292_copy_buffer_to_flash(info, addr);
+		src += 512;
+		addr += 512;
+	}
+
+
+	if (last_copy_size > 0) {
+		debug("copy last block: (1) %lX -> %lX 0x200 bytes, "
+		"(2) %lX -> %lX 0x%X bytes, (3) %lX -> %lX x200 bytes\n",
+		(ulong)(last_block * 512),
+		(ulong)COPY_BUFFER_LOCATION,
+		(ulong)src,
+		(ulong)(COPY_BUFFER_LOCATION),
+		last_copy_size,
+		(ulong)COPY_BUFFER_LOCATION,
+		(ulong)addr);
+
+		/* copy last block */
+		memcpy((void*)COPY_BUFFER_LOCATION,
+			(void*)(last_block * 512), 512);
+		memcpy((void*)COPY_BUFFER_LOCATION,
+			src, last_copy_size);
+		lpc2292_copy_buffer_to_flash(info, addr);
+	}
+
+	/* verify write */
+	memmap_value = GET8(MEMMAP);
+
+	disable_interrupts();
+
+	PUT8(MEMMAP, 01);		/* we must make sure that initial 64
+							   bytes are taken from flash when we
+							   do the compare */
+
+	for (i = 0; i < cnt; i++) {
+		if (*dst_org != *src_org){
+			printf("Write failed. Byte %lX differs\n", i);
+			ret = ERR_PROG_ERROR;
+			break;
+		}
+		dst_org++;
+		src_org++;
+	}
+
+	PUT8(MEMMAP, memmap_value);
+	enable_interrupts();
+
+	return ret;
+}
diff --git a/arch/arm/cpu/arm720t/lpc2292/iap_entry.S b/arch/arm/cpu/arm720t/lpc2292/iap_entry.S
new file mode 100644
index 0000000..c31d519
--- /dev/null
+++ b/arch/arm/cpu/arm720t/lpc2292/iap_entry.S
@@ -0,0 +1,7 @@
+IAP_ADDRESS:	.word	0x7FFFFFF1
+
+.globl iap_entry
+iap_entry:
+	ldr	r2, IAP_ADDRESS
+	bx	r2
+	mov	pc, lr
diff --git a/arch/arm/cpu/arm720t/lpc2292/mmc.c b/arch/arm/cpu/arm720t/lpc2292/mmc.c
new file mode 100644
index 0000000..beaffe9
--- /dev/null
+++ b/arch/arm/cpu/arm720t/lpc2292/mmc.c
@@ -0,0 +1,131 @@
+/*
+ * 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 <common.h>
+#include <mmc.h>
+#include <asm/errno.h>
+#include <asm/arch/hardware.h>
+#include <part.h>
+#include <fat.h>
+#include "mmc_hw.h"
+#include <asm/arch/spi.h>
+
+#ifdef CONFIG_MMC
+
+#undef MMC_DEBUG
+
+static block_dev_desc_t mmc_dev;
+
+/* these are filled out by a call to mmc_hw_get_parameters */
+static int hw_size;		/* in kbytes */
+static int hw_nr_sects;
+static int hw_sect_size;	/* in bytes */
+
+block_dev_desc_t * mmc_get_dev(int dev)
+{
+	return (block_dev_desc_t *)(&mmc_dev);
+}
+
+unsigned long mmc_block_read(int dev,
+			     unsigned long start,
+			     lbaint_t blkcnt,
+			     void *buffer)
+{
+	unsigned long rc = 0;
+	unsigned char *p = (unsigned char *)buffer;
+	unsigned long i;
+	unsigned long addr = start;
+
+#ifdef MMC_DEBUG
+	printf("mmc_block_read: start=%lu, blkcnt=%lu\n", start,
+		 (unsigned long)blkcnt);
+#endif
+
+	for(i = 0; i < (unsigned long)blkcnt; i++) {
+#ifdef MMC_DEBUG
+		printf("mmc_read_sector: addr=%lu, buffer=%p\n", addr, p);
+#endif
+		(void)mmc_read_sector(addr, p);
+		rc++;
+		addr++;
+		p += hw_sect_size;
+	}
+
+	return rc;
+}
+
+/*-----------------------------------------------------------------------------
+ * Read hardware paramterers (sector size, size, number of sectors)
+ */
+static int mmc_hw_get_parameters(void)
+{
+	unsigned char csddata[16];
+	unsigned int sizemult;
+	unsigned int size;
+
+	mmc_read_csd(csddata);
+	hw_sect_size = 1<<(csddata[5] & 0x0f);
+	size = ((csddata[6]&0x03)<<10)+(csddata[7]<<2)+(csddata[8]&0xc0);
+	sizemult = ((csddata[10] & 0x80)>>7)+((csddata[9] & 0x03)<<1);
+	hw_nr_sects = (size+1)*(1<<(sizemult+2));
+	hw_size = hw_nr_sects*hw_sect_size/1024;
+
+#ifdef MMC_DEBUG
+	printf("mmc_hw_get_parameters: hw_sect_size=%d, hw_nr_sects=%d, "
+		 "hw_size=%d\n", hw_sect_size, hw_nr_sects, hw_size);
+#endif
+
+	return 0;
+}
+
+int mmc_legacy_init(int verbose)
+{
+	int ret = -ENODEV;
+
+	if (verbose)
+		printf("mmc_legacy_init\n");
+
+	spi_init();
+	/* this meeds to be done twice */
+	mmc_hw_init();
+	udelay(1000);
+	mmc_hw_init();
+
+	mmc_hw_get_parameters();
+
+	mmc_dev.if_type = IF_TYPE_MMC;
+	mmc_dev.part_type = PART_TYPE_DOS;
+	mmc_dev.dev = 0;
+	mmc_dev.lun = 0;
+	mmc_dev.type = 0;
+	mmc_dev.blksz = hw_sect_size;
+	mmc_dev.lba = hw_nr_sects;
+	sprintf((char*)mmc_dev.vendor, "Unknown vendor");
+	sprintf((char*)mmc_dev.product, "Unknown product");
+	sprintf((char*)mmc_dev.revision, "N/A");
+	mmc_dev.removable = 0;	/* should be true??? */
+	mmc_dev.block_read = mmc_block_read;
+
+	fat_register_device(&mmc_dev, 1);
+
+	ret = 0;
+
+	return ret;
+}
+
+#endif /* CONFIG_MMC */
diff --git a/arch/arm/cpu/arm720t/lpc2292/mmc_hw.c b/arch/arm/cpu/arm720t/lpc2292/mmc_hw.c
new file mode 100644
index 0000000..b4dc4a6
--- /dev/null
+++ b/arch/arm/cpu/arm720t/lpc2292/mmc_hw.c
@@ -0,0 +1,233 @@
+/*
+    This code was original written by Ulrich Radig and modified by
+    Embedded Artists AB (www.embeddedartists.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 <config.h>
+#include <common.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/spi.h>
+
+#define MMC_Enable() PUT32(IO1CLR, 1l << 22)
+#define MMC_Disable() PUT32(IO1SET, 1l << 22)
+#define mmc_spi_cfg() spi_set_clock(8); spi_set_cfg(0, 1, 0);
+
+static unsigned char Write_Command_MMC (unsigned char *CMD);
+static void MMC_Read_Block(unsigned char *CMD, unsigned char *Buffer,
+		    unsigned short int Bytes);
+
+/* initialize the hardware */
+int mmc_hw_init(void)
+{
+	unsigned long a;
+	unsigned short int Timeout = 0;
+	unsigned char b;
+	unsigned char CMD[] = {0x40, 0x00, 0x00, 0x00, 0x00, 0x95};
+
+	/* set-up GPIO and SPI */
+	(*((volatile unsigned long *)PINSEL2)) &= ~(1l << 3); /* clear bit 3 */
+	(*((volatile unsigned long *)IO1DIR)) |= (1l << 22); /* set bit 22 (output) */
+
+	MMC_Disable();
+
+	spi_lock();
+	spi_set_clock(248);
+	spi_set_cfg(0, 1, 0);
+	MMC_Enable();
+
+	/* waste some time */
+	for(a=0; a < 20000; a++)
+		asm("nop");
+
+	/* Put the MMC/SD-card into SPI-mode */
+	for (b = 0; b < 10; b++) /* Sends min 74+ clocks to the MMC/SD-card */
+		spi_write(0xff);
+
+	/* Sends command CMD0 to MMC/SD-card */
+	while (Write_Command_MMC(CMD) != 1) {
+		if (Timeout++ > 200) {
+			MMC_Disable();
+			spi_unlock();
+			return(1); /* Abort with command 1 (return 1) */
+		}
+	}
+	/* Sends Command CMD1 an MMC/SD-card */
+	Timeout = 0;
+	CMD[0] = 0x41;/* Command 1 */
+	CMD[5] = 0xFF;
+
+	while (Write_Command_MMC(CMD) != 0) {
+		if (Timeout++ > 200) {
+			MMC_Disable();
+			spi_unlock();
+			return (2); /* Abort with command 2 (return 2) */
+		}
+	}
+
+	MMC_Disable();
+	spi_unlock();
+
+	return 0;
+}
+
+/* ############################################################################
+   Sends a command to the MMC/SD-card
+   ######################################################################### */
+static unsigned char Write_Command_MMC (unsigned char *CMD)
+{
+	unsigned char a, tmp = 0xff;
+	unsigned short int Timeout = 0;
+
+	MMC_Disable();
+	spi_write(0xFF);
+	MMC_Enable();
+
+	for (a = 0; a < 0x06; a++)
+		spi_write(*CMD++);
+
+	while (tmp == 0xff) {
+		tmp = spi_read();
+		if (Timeout++ > 5000)
+		  break;
+	}
+
+	return (tmp);
+}
+
+/* ############################################################################
+   Routine to read the CID register from the MMC/SD-card (16 bytes)
+   ######################################################################### */
+void MMC_Read_Block(unsigned char *CMD, unsigned char *Buffer, unsigned short
+	int Bytes)
+{
+	unsigned short int a;
+
+	spi_lock();
+	mmc_spi_cfg();
+	MMC_Enable();
+
+	if (Write_Command_MMC(CMD) != 0) {
+		MMC_Disable();
+		spi_unlock();
+		return;
+	}
+
+	while (spi_read() != 0xfe) {};
+	for (a = 0; a < Bytes; a++)
+		*Buffer++ = spi_read();
+
+	/* Read the CRC-byte */
+	spi_read(); /* CRC - byte is discarded */
+	spi_read(); /* CRC - byte is discarded */
+	/* set MMC_Chip_Select to high (MMC/SD-card Inaktiv) */
+	MMC_Disable();
+	spi_unlock();
+
+	return;
+}
+
+/* ############################################################################
+   Routine to read a block (512 bytes) from the MMC/SD-card
+   ######################################################################### */
+unsigned char mmc_read_sector (unsigned long addr,unsigned char *Buffer)
+{
+	/* Command 16 to read aBlocks from the MMC/SD - caed */
+	unsigned char CMD[] = {0x51,0x00,0x00,0x00,0x00,0xFF};
+
+	/* The addres on the MMC/SD-card is in bytes,
+	addr is transformed from blocks to bytes and the result is
+	placed into the command */
+
+	addr = addr << 9; /* addr = addr * 512 */
+
+	CMD[1] = ((addr & 0xFF000000) >> 24);
+	CMD[2] = ((addr & 0x00FF0000) >> 16);
+	CMD[3] = ((addr & 0x0000FF00) >> 8 );
+
+	MMC_Read_Block(CMD, Buffer, 512);
+
+	return (0);
+}
+
+/* ############################################################################
+   Routine to write a block (512 byte) to the MMC/SD-card
+   ######################################################################### */
+unsigned char mmc_write_sector (unsigned long addr,unsigned char *Buffer)
+{
+	unsigned char tmp, a;
+	unsigned short int b;
+	/* Command 24 to write a block to the MMC/SD - card */
+	unsigned char CMD[] = {0x58, 0x00, 0x00, 0x00, 0x00, 0xFF};
+
+	/* The addres on the MMC/SD-card is in bytes,
+	addr is transformed from blocks to bytes and the result is
+	placed into the command */
+
+	addr = addr << 9; /* addr = addr * 512 */
+
+	CMD[1] = ((addr & 0xFF000000) >> 24);
+	CMD[2] = ((addr & 0x00FF0000) >> 16);
+	CMD[3] = ((addr & 0x0000FF00) >> 8 );
+
+	spi_lock();
+	mmc_spi_cfg();
+	MMC_Enable();
+
+	/* Send command CMD24 to the MMC/SD-card (Write 1 Block/512 Bytes) */
+	tmp = Write_Command_MMC(CMD);
+	if (tmp != 0) {
+		MMC_Disable();
+		spi_unlock();
+		return(tmp);
+	}
+
+	/* Do a short delay and send a clock-pulse to the MMC/SD-card */
+	for (a = 0; a < 100; a++)
+		spi_read();
+
+	/* Send a start byte to the MMC/SD-card */
+	spi_write(0xFE);
+
+	/* Write the block (512 bytes) to the MMC/SD-card */
+	for (b = 0; b < 512; b++)
+		spi_write(*Buffer++);
+
+	/* write the CRC-Byte */
+	spi_write(0xFF); /* write a dummy CRC */
+	spi_write(0xFF); /* CRC code is not used */
+
+	/* Wait for MMC/SD-card busy */
+	while (spi_read() != 0xff) {};
+
+	/* set MMC_Chip_Select to high (MMC/SD-card inactive) */
+	MMC_Disable();
+	spi_unlock();
+	return (0);
+}
+
+/* #########################################################################
+   Routine to read the CSD register from the MMC/SD-card (16 bytes)
+   ######################################################################### */
+unsigned char mmc_read_csd (unsigned char *Buffer)
+{
+	/* Command to read the CSD register */
+	unsigned char CMD[] = {0x49, 0x00, 0x00, 0x00, 0x00, 0xFF};
+
+	MMC_Read_Block(CMD, Buffer, 16);
+
+	return (0);
+}
diff --git a/arch/arm/cpu/arm720t/lpc2292/mmc_hw.h b/arch/arm/cpu/arm720t/lpc2292/mmc_hw.h
new file mode 100644
index 0000000..3687dbf
--- /dev/null
+++ b/arch/arm/cpu/arm720t/lpc2292/mmc_hw.h
@@ -0,0 +1,29 @@
+/*
+    This module implements a linux character device driver for the 24c256 chip.
+    Copyright (C) 2006  Embedded Artists AB (www.embeddedartists.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
+*/
+
+#ifndef _MMC_HW_
+#define _MMC_HW_
+
+unsigned char mmc_read_csd(unsigned char *Buffer);
+unsigned char mmc_read_sector (unsigned long addr,
+			       unsigned char *Buffer);
+unsigned char mmc_write_sector (unsigned long addr,unsigned char *Buffer);
+int mmc_hw_init(void);
+
+#endif /* _MMC_HW_ */
diff --git a/arch/arm/cpu/arm720t/lpc2292/spi.c b/arch/arm/cpu/arm720t/lpc2292/spi.c
new file mode 100644
index 0000000..d296bda
--- /dev/null
+++ b/arch/arm/cpu/arm720t/lpc2292/spi.c
@@ -0,0 +1,40 @@
+/*
+    This module implements an interface to the SPI on the lpc22xx.
+    Copyright (C) 2006  Embedded Artists AB (www.embeddedartists.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 <config.h>
+#include <common.h>
+#include <asm/errno.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/spi.h>
+
+unsigned long spi_flags;
+unsigned char spi_idle = 0x00;
+
+int spi_init(void)
+{
+	unsigned long pinsel0_value;
+
+	/* activate spi pins */
+	pinsel0_value = GET32(PINSEL0);
+	pinsel0_value &= ~(0xFFl << 8);
+	pinsel0_value |= (0x55l << 8);
+	PUT32(PINSEL0, pinsel0_value);
+
+	return 0;
+}
diff --git a/arch/arm/cpu/arm720t/s3c4510b/Makefile b/arch/arm/cpu/arm720t/s3c4510b/Makefile
new file mode 100644
index 0000000..c099036
--- /dev/null
+++ b/arch/arm/cpu/arm720t/s3c4510b/Makefile
@@ -0,0 +1,45 @@
+#
+# (C) Copyright 2000-2008
+# 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
+
+COBJS-y	+= cache.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
+OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS-y))
+
+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/arm720t/s3c4510b/cache.c b/arch/arm/cpu/arm720t/s3c4510b/cache.c
new file mode 100644
index 0000000..104d287
--- /dev/null
+++ b/arch/arm/cpu/arm720t/s3c4510b/cache.c
@@ -0,0 +1,86 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Alex Zuepke <azu@sysgo.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/hardware.h>
+
+void icache_enable (void)
+{
+	s32 i;
+
+	/* disable all cache bits */
+	CLR_REG( REG_SYSCFG, 0x3F);
+
+	/* 8KB cache, write enable */
+	SET_REG( REG_SYSCFG, CACHE_WRITE_BUFF | CACHE_MODE_01);
+
+	/* clear TAG RAM bits */
+	for ( i = 0; i < 256; i++)
+	  PUT_REG( CACHE_TAG_RAM + 4*i, 0x00000000);
+
+	/* clear SET0 RAM */
+	for(i=0; i < 1024; i++)
+	  PUT_REG( CACHE_SET0_RAM + 4*i, 0x00000000);
+
+	/* clear SET1 RAM */
+	for(i=0; i < 1024; i++)
+	  PUT_REG( CACHE_SET1_RAM + 4*i, 0x00000000);
+
+	/* enable cache */
+	SET_REG( REG_SYSCFG, CACHE_ENABLE);
+
+}
+
+void icache_disable (void)
+{
+	/* disable all cache bits */
+	CLR_REG( REG_SYSCFG, 0x3F);
+}
+
+int icache_status (void)
+{
+	return GET_REG( REG_SYSCFG) & CACHE_ENABLE;
+}
+
+void dcache_enable (void)
+{
+	/* we don't have seperate instruction/data caches */
+	icache_enable();
+}
+
+void dcache_disable (void)
+{
+	/* we don't have seperate instruction/data caches */
+	icache_disable();
+}
+
+int dcache_status (void)
+{
+	/* we don't have seperate instruction/data caches */
+	return icache_status();
+}
diff --git a/arch/arm/cpu/arm720t/start.S b/arch/arm/cpu/arm720t/start.S
new file mode 100644
index 0000000..022b873
--- /dev/null
+++ b/arch/arm/cpu/arm720t/start.S
@@ -0,0 +1,611 @@
+/*
+ *  armboot - Startup Code for ARM720 CPU-core
+ *
+ *  Copyright (c) 2001	Marius Gröger <mag@sysgo.de>
+ *  Copyright (c) 2002	Alex Züpke <azu@sysgo.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 <config.h>
+#include <version.h>
+#include <asm/hardware.h>
+
+/*
+ *************************************************************************
+ *
+ * Jump vector table as in table 3.1 in [1]
+ *
+ *************************************************************************
+ */
+
+
+.globl _start
+_start: b	reset
+	ldr	pc, _undefined_instruction
+	ldr	pc, _software_interrupt
+	ldr	pc, _prefetch_abort
+	ldr	pc, _data_abort
+#ifdef CONFIG_LPC2292
+	.word	0xB4405F76 /* 2's complement of the checksum of the vectors */
+#else
+	ldr	pc, _not_used
+#endif
+	ldr	pc, _irq
+	ldr	pc, _fiq
+
+_undefined_instruction: .word undefined_instruction
+_software_interrupt:	.word software_interrupt
+_prefetch_abort:	.word prefetch_abort
+_data_abort:		.word data_abort
+_not_used:		.word not_used
+_irq:			.word irq
+_fiq:			.word fiq
+
+	.balignl 16,0xdeadbeef
+
+
+/*
+ *************************************************************************
+ *
+ * Startup Code (reset vector)
+ *
+ * do important init only if we don't start from RAM!
+ * relocate armboot to ram
+ * setup stack
+ * jump to second stage
+ *
+ *************************************************************************
+ */
+
+_TEXT_BASE:
+	.word	TEXT_BASE
+
+.globl _armboot_start
+_armboot_start:
+	.word _start
+
+/*
+ * These are defined in the board-specific linker script.
+ */
+.globl _bss_start
+_bss_start:
+	.word __bss_start
+
+.globl _bss_end
+_bss_end:
+	.word _end
+
+#ifdef CONFIG_USE_IRQ
+/* IRQ stack memory (calculated at run-time) */
+.globl IRQ_STACK_START
+IRQ_STACK_START:
+	.word	0x0badc0de
+
+/* IRQ stack memory (calculated at run-time) */
+.globl FIQ_STACK_START
+FIQ_STACK_START:
+	.word 0x0badc0de
+#endif
+
+
+/*
+ * the actual reset code
+ */
+
+reset:
+	/*
+	 * set the cpu to SVC32 mode
+	 */
+	mrs	r0,cpsr
+	bic	r0,r0,#0x1f
+	orr	r0,r0,#0x13
+	msr	cpsr,r0
+
+	/*
+	 * we do sys-critical inits only at reboot,
+	 * not when booting from ram!
+	 */
+#ifndef CONFIG_SKIP_LOWLEVEL_INIT
+	bl	cpu_init_crit
+#endif
+
+#ifdef CONFIG_LPC2292
+	bl	lowlevel_init
+#endif
+
+#ifndef CONFIG_SKIP_RELOCATE_UBOOT
+relocate:				/* relocate U-Boot to RAM	    */
+	adr	r0, _start		/* r0 <- current position of code   */
+	ldr	r1, _TEXT_BASE		/* test if we run from flash or RAM */
+	cmp	r0, r1			/* don't reloc during debug	    */
+	beq	stack_setup
+
+#if TEXT_BASE
+#ifndef CONFIG_LPC2292 /* already done in lowlevel_init */
+	ldr	r2, =0x0		/* Relocate the exception vectors   */
+	cmp	r1, r2			/* and associated data to address   */
+	ldmneia r0!, {r3-r10}		/* 0x0. Do nothing if TEXT_BASE is  */
+	stmneia r2!, {r3-r10}		/* 0x0. Copy the first 15 words.    */
+	ldmneia r0, {r3-r9}
+	stmneia r2, {r3-r9}
+	adrne	r0, _start		/* restore r0			    */
+#endif	/* !CONFIG_LPC2292 */
+#endif
+
+	ldr	r2, _armboot_start
+	ldr	r3, _bss_start
+	sub	r2, r3, r2		/* r2 <- size of armboot	    */
+	add	r2, r0, r2		/* r2 <- source end address	    */
+
+copy_loop:
+	ldmia	r0!, {r3-r10}		/* copy from source address [r0]    */
+	stmia	r1!, {r3-r10}		/* copy to   target address [r1]    */
+	cmp	r0, r2			/* until source end addreee [r2]    */
+	ble	copy_loop
+
+#endif	/* CONFIG_SKIP_RELOCATE_UBOOT */
+
+	/* Set up the stack						    */
+stack_setup:
+	ldr	r0, _TEXT_BASE		/* upper 128 KiB: relocated uboot   */
+	sub	r0, r0, #CONFIG_SYS_MALLOC_LEN /* malloc area			    */
+	sub	r0, r0, #CONFIG_SYS_GBL_DATA_SIZE /* bdinfo			    */
+#ifdef CONFIG_USE_IRQ
+	sub	r0, r0, #(CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ)
+#endif
+	sub	sp, r0, #12		/* leave 3 words for abort-stack    */
+
+clear_bss:
+	ldr	r0, _bss_start		/* find start of bss segment	    */
+	ldr	r1, _bss_end		/* stop here			    */
+	mov	r2, #0x00000000		/* clear			    */
+
+clbss_l:str	r2, [r0]		/* clear loop...		    */
+	add	r0, r0, #4
+	cmp	r0, r1
+	ble	clbss_l
+
+	ldr	pc, _start_armboot
+
+_start_armboot: .word start_armboot
+
+/*
+ *************************************************************************
+ *
+ * CPU_init_critical registers
+ *
+ * setup important registers
+ * setup memory timing
+ *
+ *************************************************************************
+ */
+
+#if defined(CONFIG_IMPA7) || defined(CONFIG_EP7312) || defined(CONFIG_ARMADILLO)
+
+/* Interupt-Controller base addresses */
+INTMR1:		.word	0x80000280 @ 32 bit size
+INTMR2:		.word	0x80001280 @ 16 bit size
+INTMR3:		.word	0x80002280 @  8 bit size
+
+/* SYSCONs */
+SYSCON1:	.word	0x80000100
+SYSCON2:	.word	0x80001100
+SYSCON3:	.word	0x80002200
+
+#define CLKCTL	       0x6  /* mask */
+#define CLKCTL_18      0x0  /* 18.432 MHz */
+#define CLKCTL_36      0x2  /* 36.864 MHz */
+#define CLKCTL_49      0x4  /* 49.152 MHz */
+#define CLKCTL_73      0x6  /* 73.728 MHz */
+
+#elif defined(CONFIG_LPC2292)
+PLLCFG_ADR:	.word	PLLCFG
+PLLFEED_ADR:	.word	PLLFEED
+PLLCON_ADR:	.word	PLLCON
+PLLSTAT_ADR:	.word	PLLSTAT
+VPBDIV_ADR:	.word	VPBDIV
+MEMMAP_ADR:	.word	MEMMAP
+
+#endif
+
+cpu_init_crit:
+#if defined(CONFIG_IMPA7) || defined(CONFIG_EP7312) || defined(CONFIG_ARMADILLO)
+
+	/*
+	 * mask all IRQs by clearing all bits in the INTMRs
+	 */
+	mov	r1, #0x00
+	ldr	r0, INTMR1
+	str	r1, [r0]
+	ldr	r0, INTMR2
+	str	r1, [r0]
+	ldr	r0, INTMR3
+	str	r1, [r0]
+
+	/*
+	 * flush v4 I/D caches
+	 */
+	mov	r0, #0
+	mcr	p15, 0, r0, c7, c7, 0	/* flush v3/v4 cache */
+	mcr	p15, 0, r0, c8, c7, 0	/* flush v4 TLB */
+
+	/*
+	 * disable MMU stuff and caches
+	 */
+	mrc	p15,0,r0,c1,c0
+	bic	r0, r0, #0x00002300	@ clear bits 13, 9:8 (--V- --RS)
+	bic	r0, r0, #0x0000008f	@ clear bits 7, 3:0 (B--- WCAM)
+	orr	r0, r0, #0x00000002	@ set bit 2 (A) Align
+	mcr	p15,0,r0,c1,c0
+#elif defined(CONFIG_NETARM)
+	/*
+	 * prior to software reset : need to set pin PORTC4 to be *HRESET
+	 */
+	ldr	r0, =NETARM_GEN_MODULE_BASE
+	ldr	r1, =(NETARM_GEN_PORT_MODE(0x10) | \
+			NETARM_GEN_PORT_DIR(0x10))
+	str	r1, [r0, #+NETARM_GEN_PORTC]
+	/*
+	 * software reset : see HW Ref. Guide 8.2.4 : Software Service register
+	 *		    for an explanation of this process
+	 */
+	ldr	r0, =NETARM_GEN_MODULE_BASE
+	ldr	r1, =NETARM_GEN_SW_SVC_RESETA
+	str	r1, [r0, #+NETARM_GEN_SOFTWARE_SERVICE]
+	ldr	r1, =NETARM_GEN_SW_SVC_RESETB
+	str	r1, [r0, #+NETARM_GEN_SOFTWARE_SERVICE]
+	ldr	r1, =NETARM_GEN_SW_SVC_RESETA
+	str	r1, [r0, #+NETARM_GEN_SOFTWARE_SERVICE]
+	ldr	r1, =NETARM_GEN_SW_SVC_RESETB
+	str	r1, [r0, #+NETARM_GEN_SOFTWARE_SERVICE]
+	/*
+	 * setup PLL and System Config
+	 */
+	ldr	r0, =NETARM_GEN_MODULE_BASE
+
+	ldr	r1, =(	NETARM_GEN_SYS_CFG_LENDIAN | \
+			NETARM_GEN_SYS_CFG_BUSFULL | \
+			NETARM_GEN_SYS_CFG_USER_EN | \
+			NETARM_GEN_SYS_CFG_ALIGN_ABORT | \
+			NETARM_GEN_SYS_CFG_BUSARB_INT | \
+			NETARM_GEN_SYS_CFG_BUSMON_EN )
+
+	str	r1, [r0, #+NETARM_GEN_SYSTEM_CONTROL]
+
+#ifndef CONFIG_NETARM_PLL_BYPASS
+	ldr	r1, =(	NETARM_GEN_PLL_CTL_PLLCNT(NETARM_PLL_COUNT_VAL) | \
+			NETARM_GEN_PLL_CTL_POLTST_DEF | \
+			NETARM_GEN_PLL_CTL_INDIV(1) | \
+			NETARM_GEN_PLL_CTL_ICP_DEF | \
+			NETARM_GEN_PLL_CTL_OUTDIV(2) )
+	str	r1, [r0, #+NETARM_GEN_PLL_CONTROL]
+#endif
+
+	/*
+	 * mask all IRQs by clearing all bits in the INTMRs
+	 */
+	mov	r1, #0
+	ldr	r0, =NETARM_GEN_MODULE_BASE
+	str	r1, [r0, #+NETARM_GEN_INTR_ENABLE]
+
+#elif defined(CONFIG_S3C4510B)
+
+	/*
+	 * Mask off all IRQ sources
+	 */
+	ldr	r1, =REG_INTMASK
+	ldr	r0, =0x3FFFFF
+	str	r0, [r1]
+
+	/*
+	 * Disable Cache
+	 */
+	ldr r0, =REG_SYSCFG
+	ldr r1, =0x83ffffa0	/* cache-disabled  */
+	str r1, [r0]
+
+#elif defined(CONFIG_INTEGRATOR) && defined(CONFIG_ARCH_INTEGRATOR)
+	/* No specific initialisation for IntegratorAP/CM720T as yet */
+#elif defined(CONFIG_LPC2292)
+	/* Set-up PLL */
+	mov	r3, #0xAA
+	mov	r4, #0x55
+	/* First disconnect and disable the PLL */
+	ldr	r0, PLLCON_ADR
+	mov	r1, #0x00
+	str	r1, [r0]
+	ldr	r0, PLLFEED_ADR /* start feed sequence */
+	str	r3, [r0]
+	str	r4, [r0]	/* feed sequence done */
+	/* Set new M and P values */
+	ldr	r0, PLLCFG_ADR
+	mov	r1, #0x23	/* M=4 and P=2 */
+	str	r1, [r0]
+	ldr	r0, PLLFEED_ADR /* start feed sequence */
+	str	r3, [r0]
+	str	r4, [r0]	/* feed sequence done */
+	/* Then enable the PLL */
+	ldr	r0, PLLCON_ADR
+	mov	r1, #0x01	/* PLL enable bit */
+	str	r1, [r0]
+	ldr	r0, PLLFEED_ADR /* start feed sequence */
+	str	r3, [r0]
+	str	r4, [r0]	/* feed sequence done */
+	/* Wait for the lock */
+	ldr	r0, PLLSTAT_ADR
+	mov	r1, #0x400	/* lock bit */
+lock_loop:
+	ldr	r2, [r0]
+	and	r2, r1, r2
+	cmp	r2, #0
+	beq	lock_loop
+	/* And finally connect the PLL */
+	ldr	r0, PLLCON_ADR
+	mov	r1, #0x03	/* PLL enable bit and connect bit */
+	str	r1, [r0]
+	ldr	r0, PLLFEED_ADR /* start feed sequence */
+	str	r3, [r0]
+	str	r4, [r0]	/* feed sequence done */
+	/* Set-up VPBDIV register */
+	ldr	r0, VPBDIV_ADR
+	mov	r1, #0x01	/* VPB clock is same as process clock */
+	str	r1, [r0]
+#else
+#error No cpu_init_crit() defined for current CPU type
+#endif
+
+#ifdef CONFIG_ARM7_REVD
+	/* set clock speed */
+	/* !!! we run @ 36 MHz due to a hardware flaw in Rev. D processors */
+	/* !!! not doing DRAM refresh properly! */
+	ldr	r0, SYSCON3
+	ldr	r1, [r0]
+	bic	r1, r1, #CLKCTL
+	orr	r1, r1, #CLKCTL_36
+	str	r1, [r0]
+#endif
+
+#ifndef CONFIG_LPC2292
+	mov	ip, lr
+	/*
+	 * before relocating, we have to setup RAM timing
+	 * because memory timing is board-dependent, you will
+	 * find a lowlevel_init.S in your board directory.
+	 */
+	bl	lowlevel_init
+	mov	lr, ip
+#endif
+
+	mov	pc, lr
+
+
+/*
+ *************************************************************************
+ *
+ * Interrupt handling
+ *
+ *************************************************************************
+ */
+
+@
+@ IRQ stack frame.
+@
+#define S_FRAME_SIZE	72
+
+#define S_OLD_R0	68
+#define S_PSR		64
+#define S_PC		60
+#define S_LR		56
+#define S_SP		52
+
+#define S_IP		48
+#define S_FP		44
+#define S_R10		40
+#define S_R9		36
+#define S_R8		32
+#define S_R7		28
+#define S_R6		24
+#define S_R5		20
+#define S_R4		16
+#define S_R3		12
+#define S_R2		8
+#define S_R1		4
+#define S_R0		0
+
+#define MODE_SVC 0x13
+#define I_BIT	 0x80
+
+/*
+ * use bad_save_user_regs for abort/prefetch/undef/swi ...
+ * use irq_save_user_regs / irq_restore_user_regs for IRQ/FIQ handling
+ */
+
+	.macro	bad_save_user_regs
+	sub	sp, sp, #S_FRAME_SIZE
+	stmia	sp, {r0 - r12}			@ Calling r0-r12
+	add	r8, sp, #S_PC
+
+	ldr	r2, _armboot_start
+	sub	r2, r2, #(CONFIG_STACKSIZE+CONFIG_SYS_MALLOC_LEN)
+	sub	r2, r2, #(CONFIG_SYS_GBL_DATA_SIZE+8)	@ set base 2 words into abort stack
+	ldmia	r2, {r2 - r4}			@ get pc, cpsr, old_r0
+	add	r0, sp, #S_FRAME_SIZE		@ restore sp_SVC
+
+	add	r5, sp, #S_SP
+	mov	r1, lr
+	stmia	r5, {r0 - r4}			@ save sp_SVC, lr_SVC, pc, cpsr, old_r
+	mov	r0, sp
+	.endm
+
+	.macro	irq_save_user_regs
+	sub	sp, sp, #S_FRAME_SIZE
+	stmia	sp, {r0 - r12}			@ Calling r0-r12
+	add	r8, sp, #S_PC
+	stmdb	r8, {sp, lr}^			@ Calling SP, LR
+	str	lr, [r8, #0]			@ Save calling PC
+	mrs	r6, spsr
+	str	r6, [r8, #4]			@ Save CPSR
+	str	r0, [r8, #8]			@ Save OLD_R0
+	mov	r0, sp
+	.endm
+
+	.macro	irq_restore_user_regs
+	ldmia	sp, {r0 - lr}^			@ Calling r0 - lr
+	mov	r0, r0
+	ldr	lr, [sp, #S_PC]			@ Get PC
+	add	sp, sp, #S_FRAME_SIZE
+	subs	pc, lr, #4			@ return & move spsr_svc into cpsr
+	.endm
+
+	.macro get_bad_stack
+	ldr	r13, _armboot_start		@ setup our mode stack
+	sub	r13, r13, #(CONFIG_STACKSIZE+CONFIG_SYS_MALLOC_LEN)
+	sub	r13, r13, #(CONFIG_SYS_GBL_DATA_SIZE+8) @ reserved a couple spots in abort stack
+
+	str	lr, [r13]			@ save caller lr / spsr
+	mrs	lr, spsr
+	str	lr, [r13, #4]
+
+	mov	r13, #MODE_SVC			@ prepare SVC-Mode
+	msr	spsr_c, r13
+	mov	lr, pc
+	movs	pc, lr
+	.endm
+
+	.macro get_irq_stack			@ setup IRQ stack
+	ldr	sp, IRQ_STACK_START
+	.endm
+
+	.macro get_fiq_stack			@ setup FIQ stack
+	ldr	sp, FIQ_STACK_START
+	.endm
+
+/*
+ * exception handlers
+ */
+	.align	5
+undefined_instruction:
+	get_bad_stack
+	bad_save_user_regs
+	bl	do_undefined_instruction
+
+	.align	5
+software_interrupt:
+	get_bad_stack
+	bad_save_user_regs
+	bl	do_software_interrupt
+
+	.align	5
+prefetch_abort:
+	get_bad_stack
+	bad_save_user_regs
+	bl	do_prefetch_abort
+
+	.align	5
+data_abort:
+	get_bad_stack
+	bad_save_user_regs
+	bl	do_data_abort
+
+	.align	5
+not_used:
+	get_bad_stack
+	bad_save_user_regs
+	bl	do_not_used
+
+#ifdef CONFIG_USE_IRQ
+
+	.align	5
+irq:
+	get_irq_stack
+	irq_save_user_regs
+	bl	do_irq
+	irq_restore_user_regs
+
+	.align	5
+fiq:
+	get_fiq_stack
+	/* someone ought to write a more effiction fiq_save_user_regs */
+	irq_save_user_regs
+	bl	do_fiq
+	irq_restore_user_regs
+
+#else
+
+	.align	5
+irq:
+	get_bad_stack
+	bad_save_user_regs
+	bl	do_irq
+
+	.align	5
+fiq:
+	get_bad_stack
+	bad_save_user_regs
+	bl	do_fiq
+
+#endif
+
+#if defined(CONFIG_IMPA7) || defined(CONFIG_EP7312) || defined(CONFIG_ARMADILLO)
+	.align	5
+.globl reset_cpu
+reset_cpu:
+	mov	ip, #0
+	mcr	p15, 0, ip, c7, c7, 0		@ invalidate cache
+	mcr	p15, 0, ip, c8, c7, 0		@ flush TLB (v4)
+	mrc	p15, 0, ip, c1, c0, 0		@ get ctrl register
+	bic	ip, ip, #0x000f			@ ............wcam
+	bic	ip, ip, #0x2100			@ ..v....s........
+	mcr	p15, 0, ip, c1, c0, 0		@ ctrl register
+	mov	pc, r0
+#elif defined(CONFIG_NETARM)
+	.align	5
+.globl reset_cpu
+reset_cpu:
+	ldr	r1, =NETARM_MEM_MODULE_BASE
+	ldr	r0, [r1, #+NETARM_MEM_CS0_BASE_ADDR]
+	ldr	r1, =0xFFFFF000
+	and	r0, r1, r0
+	ldr	r1, =(relocate-TEXT_BASE)
+	add	r0, r1, r0
+	ldr	r4, =NETARM_GEN_MODULE_BASE
+	ldr	r1, =NETARM_GEN_SW_SVC_RESETA
+	str	r1, [r4, #+NETARM_GEN_SOFTWARE_SERVICE]
+	ldr	r1, =NETARM_GEN_SW_SVC_RESETB
+	str	r1, [r4, #+NETARM_GEN_SOFTWARE_SERVICE]
+	ldr	r1, =NETARM_GEN_SW_SVC_RESETA
+	str	r1, [r4, #+NETARM_GEN_SOFTWARE_SERVICE]
+	ldr	r1, =NETARM_GEN_SW_SVC_RESETB
+	str	r1, [r4, #+NETARM_GEN_SOFTWARE_SERVICE]
+	mov	pc, r0
+#elif defined(CONFIG_S3C4510B)
+/* Nothing done here as reseting the CPU is board specific, depending
+ * on external peripherals such as watchdog timers, etc. */
+#elif defined(CONFIG_INTEGRATOR) && defined(CONFIG_ARCH_INTEGRATOR)
+	/* No specific reset actions for IntegratorAP/CM720T as yet */
+#elif defined(CONFIG_LPC2292)
+	.align	5
+.globl reset_cpu
+reset_cpu:
+	mov	pc, r0
+#else
+#error No reset_cpu() defined for current CPU type
+#endif
diff --git a/arch/arm/cpu/arm720t/u-boot.lds b/arch/arm/cpu/arm720t/u-boot.lds
new file mode 100644
index 0000000..c975fc3
--- /dev/null
+++ b/arch/arm/cpu/arm720t/u-boot.lds
@@ -0,0 +1,56 @@
+/*
+ * (C) Copyright 2000-2004
+ * 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
+ */
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+	. = 0x00000000;
+
+	. = ALIGN(4);
+	.text :
+	{
+		arch/arm/cpu/arm720t/start.o	(.text)
+		*(.text)
+	}
+
+	. = ALIGN(4);
+	.rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) }
+
+	. = ALIGN(4);
+	.data : { *(.data) }
+
+	. = ALIGN(4);
+	.got : { *(.got) }
+
+	. = .;
+	__u_boot_cmd_start = .;
+	.u_boot_cmd : { *(.u_boot_cmd) }
+	__u_boot_cmd_end = .;
+
+	. = ALIGN(4);
+	__bss_start = .;
+	.bss (NOLOAD) : { *(.bss) . = ALIGN(4); }
+	_end = .;
+}