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

6 files changed, 898 insertions, 0 deletions

diff --git a/board/samsung/smdk2400/Makefile b/board/samsung/smdk2400/Makefile
new file mode 100644
index 0000000..90cb2b8
--- /dev/null
+++ b/board/samsung/smdk2400/Makefile
@@ -0,0 +1,51 @@
+#
+# (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	= $(obj)lib$(BOARD).a
+
+COBJS	:= smdk2400.o flash.o
+SOBJS	:= lowlevel_init.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak $(obj).depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/samsung/smdk2400/config.mk b/board/samsung/smdk2400/config.mk
new file mode 100644
index 0000000..82400bf
--- /dev/null
+++ b/board/samsung/smdk2400/config.mk
@@ -0,0 +1,25 @@
+#
+# (C) Copyright 2002
+# Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
+#
+# SAMSUNG board with S3C2400X (ARM920T) CPU
+#
+# see http://www.samsung.com/ for more information on SAMSUNG
+#
+
+#
+# SAMSUNG has 1 bank of 32 MB DRAM
+#
+# 0C00'0000 to 0E00'0000
+#
+# Linux-Kernel is expected to be at 0cf0'0000, entry 0cf0'0000
+# optionally with a ramdisk at 0c80'0000
+#
+# we load ourself to 0CF80000 (must be high enough not to be
+# overwritten by the uncompessing Linux kernel)
+#
+# download area is 0C80'0000
+#
+
+
+TEXT_BASE = 0x0CF80000
diff --git a/board/samsung/smdk2400/flash.c b/board/samsung/smdk2400/flash.c
new file mode 100644
index 0000000..9eee60d
--- /dev/null
+++ b/board/samsung/smdk2400/flash.c
@@ -0,0 +1,490 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/* #define DEBUG */
+
+#include <common.h>
+#include <environment.h>
+
+#define FLASH_BANK_SIZE 0x1000000	/* 2 x   8 MB */
+#define MAIN_SECT_SIZE  0x40000		/* 2 x 128 kB */
+
+flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
+
+
+#define CMD_READ_ARRAY		0x00FF00FF
+#define CMD_IDENTIFY		0x00900090
+#define CMD_ERASE_SETUP		0x00200020
+#define CMD_ERASE_CONFIRM	0x00D000D0
+#define CMD_PROGRAM		0x00400040
+#define CMD_RESUME		0x00D000D0
+#define CMD_SUSPEND		0x00B000B0
+#define CMD_STATUS_READ		0x00700070
+#define CMD_STATUS_RESET	0x00500050
+
+#define BIT_BUSY		0x00800080
+#define BIT_ERASE_SUSPEND	0x00400040
+#define BIT_ERASE_ERROR		0x00200020
+#define BIT_PROGRAM_ERROR	0x00100010
+#define BIT_VPP_RANGE_ERROR	0x00080008
+#define BIT_PROGRAM_SUSPEND	0x00040004
+#define BIT_PROTECT_ERROR	0x00020002
+#define BIT_UNDEFINED		0x00010001
+
+#define BIT_SEQUENCE_ERROR	0x00300030
+#define BIT_TIMEOUT		0x80000000
+
+/*-----------------------------------------------------------------------
+ */
+
+ulong flash_init (void)
+{
+	int i, j;
+	ulong size = 0;
+
+	for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) {
+		ulong flashbase = 0;
+
+		flash_info[i].flash_id =
+			(INTEL_MANUFACT     & FLASH_VENDMASK) |
+			(INTEL_ID_28F640J3A & FLASH_TYPEMASK);
+		flash_info[i].size = FLASH_BANK_SIZE;
+		flash_info[i].sector_count = CONFIG_SYS_MAX_FLASH_SECT;
+		memset (flash_info[i].protect, 0, CONFIG_SYS_MAX_FLASH_SECT);
+		if (i == 0)
+			flashbase = CONFIG_SYS_FLASH_BASE;
+		else
+			panic ("configured too many flash banks!\n");
+		for (j = 0; j < flash_info[i].sector_count; j++) {
+			flash_info[i].start[j] = flashbase;
+
+			/* uniform sector size */
+			flashbase += MAIN_SECT_SIZE;
+		}
+		size += flash_info[i].size;
+	}
+
+	/*
+	 * Protect monitor and environment sectors
+	 */
+	flash_protect ( FLAG_PROTECT_SET,
+			CONFIG_SYS_FLASH_BASE,
+			CONFIG_SYS_FLASH_BASE + monitor_flash_len - 1,
+			&flash_info[0]);
+
+	flash_protect ( FLAG_PROTECT_SET,
+			CONFIG_ENV_ADDR,
+			CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1, &flash_info[0]);
+
+#ifdef CONFIG_ENV_ADDR_REDUND
+	flash_protect ( FLAG_PROTECT_SET,
+			CONFIG_ENV_ADDR_REDUND,
+			CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SIZE_REDUND - 1,
+			&flash_info[0]);
+#endif
+
+	return size;
+}
+
+/*-----------------------------------------------------------------------
+ */
+void flash_print_info (flash_info_t * info)
+{
+	int i;
+
+	switch (info->flash_id & FLASH_VENDMASK) {
+	case (INTEL_MANUFACT & FLASH_VENDMASK):
+		printf ("Intel: ");
+		break;
+	default:
+		printf ("Unknown Vendor ");
+		break;
+	}
+
+	switch (info->flash_id & FLASH_TYPEMASK) {
+	case (INTEL_ID_28F640J3A & FLASH_TYPEMASK):
+		printf ("2x 28F640J3A (64Mbit)\n");
+		break;
+	default:
+		printf ("Unknown Chip Type\n");
+		goto Done;
+		break;
+	}
+
+	printf ("  Size: %ld MB in %d Sectors\n",
+			info->size >> 20, info->sector_count);
+
+	printf ("  Sector Start Addresses:");
+	for (i = 0; i < info->sector_count; i++) {
+		if ((i % 5) == 0) {
+			printf ("\n   ");
+		}
+		printf (" %08lX%s",
+			info->start[i],
+			info->protect[i] ? " (RO)" : "     ");
+	}
+	printf ("\n");
+
+Done:	;
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+int flash_error (ulong code)
+{
+	/* Check bit patterns */
+	/* SR.7=0 is busy, SR.7=1 is ready */
+	/* all other flags indicate error on 1 */
+	/* SR.0 is undefined */
+	/* Timeout is our faked flag */
+
+	/* sequence is described in Intel 290644-005 document */
+
+	/* check Timeout */
+	if (code & BIT_TIMEOUT) {
+		puts ("Timeout\n");
+		return ERR_TIMOUT;
+	}
+
+	/* check Busy, SR.7 */
+	if (~code & BIT_BUSY) {
+		puts ("Busy\n");
+		return ERR_PROG_ERROR;
+	}
+
+	/* check Vpp low, SR.3 */
+	if (code & BIT_VPP_RANGE_ERROR) {
+		puts ("Vpp range error\n");
+		return ERR_PROG_ERROR;
+	}
+
+	/* check Device Protect Error, SR.1 */
+	if (code & BIT_PROTECT_ERROR) {
+		puts ("Device protect error\n");
+		return ERR_PROG_ERROR;
+	}
+
+	/* check Command Seq Error, SR.4 & SR.5 */
+	if (code & BIT_SEQUENCE_ERROR) {
+		puts ("Command seqence error\n");
+		return ERR_PROG_ERROR;
+	}
+
+	/* check Block Erase Error, SR.5 */
+	if (code & BIT_ERASE_ERROR) {
+		puts ("Block erase error\n");
+		return ERR_PROG_ERROR;
+	}
+
+	/* check Program Error, SR.4 */
+	if (code & BIT_PROGRAM_ERROR) {
+		puts ("Program error\n");
+		return ERR_PROG_ERROR;
+	}
+
+	/* check Block Erase Suspended, SR.6 */
+	if (code & BIT_ERASE_SUSPEND) {
+		puts ("Block erase suspended\n");
+		return ERR_PROG_ERROR;
+	}
+
+	/* check Program Suspended, SR.2 */
+	if (code & BIT_PROGRAM_SUSPEND) {
+		puts ("Program suspended\n");
+		return ERR_PROG_ERROR;
+	}
+
+	/* OK, no error */
+	return ERR_OK;
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+int flash_erase (flash_info_t * info, int s_first, int s_last)
+{
+	ulong result, result1;
+	int iflag, prot, sect;
+	int rc = ERR_OK;
+
+#ifdef USE_920T_MMU
+	int cflag;
+#endif
+
+	debug ("flash_erase: s_first %d  s_last %d\n", s_first, s_last);
+
+	/* first look for protection bits */
+
+	if (info->flash_id == FLASH_UNKNOWN)
+		return ERR_UNKNOWN_FLASH_TYPE;
+
+	if ((s_first < 0) || (s_first > s_last)) {
+		return ERR_INVAL;
+	}
+
+	if ((info->flash_id & FLASH_VENDMASK) !=
+		(INTEL_MANUFACT & FLASH_VENDMASK)) {
+		return ERR_UNKNOWN_FLASH_VENDOR;
+	}
+
+	prot = 0;
+	for (sect = s_first; sect <= s_last; ++sect) {
+		if (info->protect[sect]) {
+			prot++;
+		}
+	}
+
+	if (prot) {
+		printf ("- Warning: %d protected sectors will not be erased!\n",
+			prot);
+	} else {
+		printf ("\n");
+	}
+
+	/*
+	 * Disable interrupts which might cause a timeout
+	 * here. Remember that our exception vectors are
+	 * at address 0 in the flash, and we don't want a
+	 * (ticker) exception to happen while the flash
+	 * chip is in programming mode.
+	 */
+#ifdef USE_920T_MMU
+	cflag = dcache_status ();
+	dcache_disable ();
+#endif
+	iflag = disable_interrupts ();
+
+	/* Start erase on unprotected sectors */
+	for (sect = s_first; sect <= s_last && !ctrlc (); sect++) {
+
+		debug ("Erasing sector %2d @ %08lX... ",
+			sect, info->start[sect]);
+
+		/* arm simple, non interrupt dependent timer */
+		reset_timer_masked ();
+
+		if (info->protect[sect] == 0) {	/* not protected */
+			vu_long *addr = (vu_long *) (info->start[sect]);
+			ulong bsR7, bsR7_2, bsR5, bsR5_2;
+
+			/* *addr = CMD_STATUS_RESET; */
+			*addr = CMD_ERASE_SETUP;
+			*addr = CMD_ERASE_CONFIRM;
+
+			/* wait until flash is ready */
+			do {
+				/* check timeout */
+				if (get_timer_masked () > CONFIG_SYS_FLASH_ERASE_TOUT) {
+					*addr = CMD_STATUS_RESET;
+					result = BIT_TIMEOUT;
+					break;
+				}
+
+				*addr = CMD_STATUS_READ;
+				result = *addr;
+				bsR7 = result & (1 << 7);
+				bsR7_2 = result & (1 << 23);
+			} while (!bsR7 | !bsR7_2);
+
+			*addr = CMD_STATUS_READ;
+			result1 = *addr;
+			bsR5 = result1 & (1 << 5);
+			bsR5_2 = result1 & (1 << 21);
+#ifdef SAMSUNG_FLASH_DEBUG
+			printf ("bsR5 %lx bsR5_2 %lx\n", bsR5, bsR5_2);
+			if (bsR5 != 0 && bsR5_2 != 0)
+				printf ("bsR5 %lx bsR5_2 %lx\n", bsR5, bsR5_2);
+#endif
+
+			*addr = CMD_READ_ARRAY;
+			*addr = CMD_RESUME;
+
+			if ((rc = flash_error (result)) != ERR_OK)
+				goto outahere;
+#if 0
+			printf ("ok.\n");
+		} else {		/* it was protected */
+
+			printf ("protected!\n");
+#endif
+		}
+	}
+
+outahere:
+	/* allow flash to settle - wait 10 ms */
+	udelay_masked (10000);
+
+	if (iflag)
+		enable_interrupts ();
+
+#ifdef USE_920T_MMU
+	if (cflag)
+		dcache_enable ();
+#endif
+	return rc;
+}
+
+/*-----------------------------------------------------------------------
+ * Copy memory to flash
+ */
+
+static int write_word (flash_info_t * info, ulong dest, ulong data)
+{
+	vu_long *addr = (vu_long *) dest;
+	ulong result;
+	int rc = ERR_OK;
+	int iflag;
+
+#ifdef USE_920T_MMU
+	int cflag;
+#endif
+
+	/*
+	 * Check if Flash is (sufficiently) erased
+	 */
+	result = *addr;
+	if ((result & data) != data)
+		return ERR_NOT_ERASED;
+
+	/*
+	 * Disable interrupts which might cause a timeout
+	 * here. Remember that our exception vectors are
+	 * at address 0 in the flash, and we don't want a
+	 * (ticker) exception to happen while the flash
+	 * chip is in programming mode.
+	 */
+#ifdef USE_920T_MMU
+	cflag = dcache_status ();
+	dcache_disable ();
+#endif
+	iflag = disable_interrupts ();
+
+	/* *addr = CMD_STATUS_RESET; */
+	*addr = CMD_PROGRAM;
+	*addr = data;
+
+	/* arm simple, non interrupt dependent timer */
+	reset_timer_masked ();
+
+	/* wait until flash is ready */
+	do {
+		/* check timeout */
+		if (get_timer_masked () > CONFIG_SYS_FLASH_ERASE_TOUT) {
+			*addr = CMD_SUSPEND;
+			result = BIT_TIMEOUT;
+			break;
+		}
+
+		*addr = CMD_STATUS_READ;
+		result = *addr;
+	} while (~result & BIT_BUSY);
+
+	/* *addr = CMD_READ_ARRAY; */
+	*addr = CMD_STATUS_READ;
+	result = *addr;
+
+	rc = flash_error (result);
+
+	if (iflag)
+		enable_interrupts ();
+
+#ifdef USE_920T_MMU
+	if (cflag)
+		dcache_enable ();
+#endif
+	*addr = CMD_READ_ARRAY;
+	*addr = CMD_RESUME;
+	return rc;
+}
+
+/*-----------------------------------------------------------------------
+ * Copy memory to flash.
+ */
+
+int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
+{
+	ulong cp, wp, data;
+	int l;
+	int i, rc;
+
+	wp = (addr & ~3);			/* get lower word aligned address */
+
+	/*
+	 * handle unaligned start bytes
+	 */
+	if ((l = addr - wp) != 0) {
+		data = 0;
+		for (i = 0, cp = wp; i < l; ++i, ++cp) {
+			data = (data >> 8) | (*(uchar *) cp << 24);
+		}
+		for (; i < 4 && cnt > 0; ++i) {
+			data = (data >> 8) | (*src++ << 24);
+			--cnt;
+			++cp;
+		}
+		for (; cnt == 0 && i < 4; ++i, ++cp) {
+			data = (data >> 8) | (*(uchar *) cp << 24);
+		}
+
+		if ((rc = write_word (info, wp, data)) != 0) {
+			return (rc);
+		}
+		wp += 4;
+	}
+
+	/*
+	 * handle word aligned part
+	 */
+	while (cnt >= 4) {
+		data = *((vu_long *) src);
+		if ((rc = write_word (info, wp, data)) != 0) {
+			return (rc);
+		}
+		src += 4;
+		wp += 4;
+		cnt -= 4;
+	}
+
+	if (cnt == 0) {
+		return ERR_OK;
+	}
+
+	/*
+	 * handle unaligned tail bytes
+	 */
+	data = 0;
+	for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) {
+		data = (data >> 8) | (*src++ << 24);
+		--cnt;
+	}
+	for (; i < 4; ++i, ++cp) {
+		data = (data >> 8) | (*(uchar *) cp << 24);
+	}
+
+	return write_word (info, wp, data);
+}
diff --git a/board/samsung/smdk2400/lowlevel_init.S b/board/samsung/smdk2400/lowlevel_init.S
new file mode 100644
index 0000000..a7959f3
--- /dev/null
+++ b/board/samsung/smdk2400/lowlevel_init.S
@@ -0,0 +1,163 @@
+/*
+ * Memory Setup stuff - taken from blob memsetup.S
+ *
+ * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) and
+ *                     Jan-Derk Bakker (J.D.Bakker@its.tudelft.nl)
+ *
+ * Modified for the Samsung development board by
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+
+#include <config.h>
+#include <version.h>
+
+
+/* some parameters for the board */
+
+/*
+ *
+ * Taken from linux/arch/arm/boot/compressed/head-s3c2400.S
+ *
+ * Copyright (C) 2001 Samsung Electronics by chc, 010406
+ *
+ * S3C2400 specific tweaks.
+ *
+ */
+
+/* memory controller */
+#define BWSCON 0x14000000
+#define BANKCON3 0x14000010	/* for cs8900, ethernet */
+
+/* Bank0 */
+#define B0_Tacs	0x0	/* 0 clk */
+#define B0_Tcos	0x0	/* 0 clk */
+#define B0_Tacc	0x7	/* 14 clk */
+#define B0_Tcoh	0x0	/* 0 clk */
+#define B0_Tah	0x0	/* 0 clk */
+#define B0_Tacp	0x0
+#define B0_PMC	0x0	/* normal */
+
+/* Bank1 */
+#define B1_Tacs	0x0	/* 0 clk */
+#define B1_Tcos	0x0	/* 0 clk */
+#define B1_Tacc	0x7	/* 14 clk */
+#define B1_Tcoh	0x0	/* 0 clk */
+#define B1_Tah	0x0	/* 0 clk */
+#define B1_Tacp	0x0
+#define B1_PMC	0x0	/* normal */
+
+/* Bank2 */
+#define B2_Tacs	0x0	/* 0 clk */
+#define B2_Tcos	0x0	/* 0 clk */
+#define B2_Tacc	0x7	/* 14 clk */
+#define B2_Tcoh	0x0	/* 0 clk */
+#define B2_Tah	0x0	/* 0 clk */
+#define B2_Tacp	0x0
+#define B2_PMC	0x0	/* normal */
+
+/* Bank3 - setup for the cs8900 */
+#define B3_Tacs	0x0	/* 0 clk */
+#define B3_Tcos	0x3	/* 4 clk */
+#define B3_Tacc	0x7	/* 14 clk */
+#define B3_Tcoh	0x1	/* 1 clk */
+#define B3_Tah	0x0	/* 0 clk */
+#define B3_Tacp	0x3	/* 6 clk */
+#define B3_PMC	0x0	/* normal */
+
+/* Bank4 */
+#define B4_Tacs	0x0	/* 0 clk */
+#define B4_Tcos	0x0	/* 0 clk */
+#define B4_Tacc	0x7	/* 14 clk */
+#define B4_Tcoh	0x0	/* 0 clk */
+#define B4_Tah	0x0	/* 0 clk */
+#define B4_Tacp	0x0
+#define B4_PMC	0x0	/* normal */
+
+/* Bank5 */
+#define B5_Tacs	0x0	/* 0 clk */
+#define B5_Tcos	0x0	/* 0 clk */
+#define B5_Tacc	0x7	/* 14 clk */
+#define B5_Tcoh	0x0	/* 0 clk */
+#define B5_Tah	0x0	/* 0 clk */
+#define B5_Tacp	0x0
+#define B5_PMC	0x0	/* normal */
+
+/* Bank6 */
+#define	B6_MT	0x3	/* SDRAM */
+#define	B6_Trcd	0x1	/* 3clk */
+#define	B6_SCAN	0x1	/* 9 bit */
+
+/* Bank7 */
+#define	B7_MT	0x3	/* SDRAM */
+#define	B7_Trcd	0x1	/* 3clk */
+#define	B7_SCAN	0x1	/* 9 bit */
+
+/* refresh parameter */
+#define REFEN	0x1	/* enable refresh */
+#define TREFMD	0x0	/* CBR(CAS before RAS)/auto refresh */
+#define Trp	0x0	/* 2 clk */
+#define Trc	0x3	/* 7 clk */
+#define Tchr	0x2	/* 3 clk */
+
+#define REFCNT	1113	/* period=15.6 us, HCLK=60Mhz, (2048+1-15.6*66) */
+
+
+_TEXT_BASE:
+	.word	TEXT_BASE
+
+.globl lowlevel_init
+lowlevel_init:
+	/* memory control configuration */
+	/* make r0 relative the current location so that it */
+	/* reads SMRDATA out of FLASH rather than memory ! */
+	ldr     r0, =SMRDATA
+	ldr	r1, _TEXT_BASE
+	sub	r0, r0, r1
+	ldr	r1, =BWSCON	/* Bus Width Status Controller */
+	add     r2, r0, #52
+0:
+	ldr     r3, [r0], #4
+	str     r3, [r1], #4
+	cmp     r2, r0
+	bne     0b
+
+	/* everything is fine now */
+	mov	pc, lr
+
+	.ltorg
+/* the literal pools origin */
+
+SMRDATA:
+	.word	0x2211d114	/* d->Ethernet, BUSWIDTH=32 */
+	.word	((B0_Tacs<<13)+(B0_Tcos<<11)+(B0_Tacc<<8)+(B0_Tcoh<<6)+(B0_Tah<<4)+(B0_Tacp<<2)+(B0_PMC)) /* GCS0 */
+	.word	((B1_Tacs<<13)+(B1_Tcos<<11)+(B1_Tacc<<8)+(B1_Tcoh<<6)+(B1_Tah<<4)+(B1_Tacp<<2)+(B1_PMC)) /* GCS1 */
+	.word	((B2_Tacs<<13)+(B2_Tcos<<11)+(B2_Tacc<<8)+(B2_Tcoh<<6)+(B2_Tah<<4)+(B2_Tacp<<2)+(B2_PMC)) /* GCS2 */
+	.word	((B3_Tacs<<13)+(B3_Tcos<<11)+(B3_Tacc<<8)+(B3_Tcoh<<6)+(B3_Tah<<4)+(B3_Tacp<<2)+(B3_PMC)) /* GCS3 */
+	.word	((B4_Tacs<<13)+(B4_Tcos<<11)+(B4_Tacc<<8)+(B4_Tcoh<<6)+(B4_Tah<<4)+(B4_Tacp<<2)+(B4_PMC)) /* GCS4 */
+	.word	((B5_Tacs<<13)+(B5_Tcos<<11)+(B5_Tacc<<8)+(B5_Tcoh<<6)+(B5_Tah<<4)+(B5_Tacp<<2)+(B5_PMC)) /* GCS5 */
+	.word	((B6_MT<<15)+(B6_Trcd<<2)+(B6_SCAN)) /* GCS6 */
+	.word	((B7_MT<<15)+(B7_Trcd<<2)+(B7_SCAN)) /* GCS7 */
+	.word	((REFEN<<23)+(TREFMD<<22)+(Trp<<20)+(Trc<<18)+(Tchr<<16)+REFCNT)
+	.word	0x10	/* BUSWIDTH=32, SCLK power saving mode, BANKSIZE 32M/32M */
+	.word	0x30	/* MRSR6, CL=3clk */
+	.word	0x30	/* MRSR7 */
diff --git a/board/samsung/smdk2400/smdk2400.c b/board/samsung/smdk2400/smdk2400.c
new file mode 100644
index 0000000..4d1f1a6
--- /dev/null
+++ b/board/samsung/smdk2400/smdk2400.c
@@ -0,0 +1,112 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <s3c2400.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_MODEM_SUPPORT
+static int key_pressed(void);
+int mdm_init (bd_t *);
+extern void disable_putc(void);
+extern void enable_putc(void);
+extern int hwflow_onoff(int);
+extern int do_mdm_init; /* defined in common/main.c */
+#endif /* CONFIG_MODEM_SUPPORT */
+
+/*
+ * Miscellaneous platform dependent initialisations
+ */
+
+int board_init (void)
+{
+	S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER();
+	S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
+
+	/* memory and cpu-speed are setup before relocation */
+	/* change the clock to be 50 MHz 1:1:1 */
+	clk_power->MPLLCON = 0x5c042;
+	clk_power->CLKDIVN = 0;
+	/* set up the I/O ports */
+	gpio->PACON = 0x3ffff;
+	gpio->PBCON = 0xaaaaaaaa;
+	gpio->PBUP = 0xffff;
+	gpio->PECON = 0x0;
+	gpio->PEUP = 0x0;
+#ifdef CONFIG_HWFLOW
+	/*CTS[0] RTS[0] INPUT INPUT TXD[0] INPUT RXD[0] */
+	/*   10,   10,   00,   00,    10,   00,    10 */
+	gpio->PFCON=0xa22;
+	/* Disable pull-up on Rx, Tx, CTS and RTS pins */
+	gpio->PFUP=0x35;
+#else
+	/*INPUT INPUT INPUT INPUT TXD[0] INPUT RXD[0] */
+	/*   00,   00,   00,   00,    10,   00,    10 */
+	gpio->PFCON = 0x22;
+	/* Disable pull-up on Rx and Tx pins */
+	gpio->PFUP = 0x5;
+#endif	/* CONFIG_HWFLOW */
+	gpio->PGCON = 0x0;
+	gpio->PGUP = 0x0;
+	gpio->OPENCR = 0x0;
+
+	/* arch number of SAMSUNG-Board to MACH_TYPE_SMDK2400 */
+	gd->bd->bi_arch_number = MACH_TYPE_SMDK2400;
+
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = 0x0C000100;
+
+#ifdef CONFIG_MODEM_SUPPORT
+	if (key_pressed()) {
+		disable_putc();	/* modem doesn't understand banner etc */
+		do_mdm_init = 1;
+	}
+#endif	/* CONFIG_MODEM_SUPPORT */
+
+	return 0;
+}
+
+int dram_init (void)
+{
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
+
+	return 0;
+}
+
+#ifdef CONFIG_MODEM_SUPPORT
+static int key_pressed(void)
+{
+	int rc;
+	if (1) {	/* check for button push here, now just return 1 */
+		rc = 1;
+	}
+
+	return rc;
+}
+#endif	/* CONFIG_MODEM_SUPPORT */
diff --git a/board/samsung/smdk2400/u-boot.lds b/board/samsung/smdk2400/u-boot.lds
new file mode 100644
index 0000000..987b07d
--- /dev/null
+++ b/board/samsung/smdk2400/u-boot.lds
@@ -0,0 +1,57 @@
+/*
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+/*OUTPUT_FORMAT("elf32-arm", "elf32-arm", "elf32-arm")*/
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+	. = 0x00000000;
+
+	. = ALIGN(4);
+	.text      :
+	{
+	  cpu/arm920t/start.o	(.text)
+	  *(.text)
+	}
+
+	. = ALIGN(4);
+	.rodata : { *(.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 = .;
+}