Add missing Blackfin files.

7 files changed, 800 insertions, 0 deletions

diff --git a/lib_blackfin/Makefile b/lib_blackfin/Makefile
new file mode 100644
index 0000000..bc280d0
--- /dev/null
+++ b/lib_blackfin/Makefile
@@ -0,0 +1,47 @@
+#
+# U-boot Makefile
+#
+# Copyright (c) 2005 blackfin.uclinux.org
+#
+# (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
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= lib$(ARCH).a
+
+AOBJS	=
+
+COBJS	= board.o bf533_linux.o bf533_string.o cache.o muldi3.o
+OBJS	= $(AOBJS) $(COBJS)
+
+$(LIB):	.depend $(OBJS)
+	$(AR) crv $@ $(OBJS)
+
+#########################################################################
+
+.depend:	Makefile $(AOBJS:.o=.S) $(COBJS:.o=.c)
+		$(CC) -M $(CFLAGS) $(AOBJS:.o=.S) $(COBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################
diff --git a/lib_blackfin/bf533_linux.c b/lib_blackfin/bf533_linux.c
new file mode 100644
index 0000000..6f29795
--- /dev/null
+++ b/lib_blackfin/bf533_linux.c
@@ -0,0 +1,91 @@
+/*
+ * U-boot - bf533_linux.c
+ *
+ * Copyright (c) 2005 blackfin.uclinux.org
+ *
+ * (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
+ */
+
+/* Dummy functions, currently not in Use */
+
+#include <common.h>
+#include <command.h>
+#include <image.h>
+#include <zlib.h>
+#include <asm/byteorder.h>
+
+#define	LINUX_MAX_ENVS		256
+#define	LINUX_MAX_ARGS		256
+
+#ifdef CONFIG_SHOW_BOOT_PROGRESS
+#include <status_led.h>
+#define SHOW_BOOT_PROGRESS(arg)	show_boot_progress(arg)
+#else
+#define SHOW_BOOT_PROGRESS(arg)
+#endif
+
+#define CMD_LINE_ADDR 0xFF900000  /* L1 scratchpad */
+
+#ifdef SHARED_RESOURCES
+        extern void swap_to(int device_id);
+#endif
+
+static char *make_command_line(void);
+
+extern image_header_t header;
+extern int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
+void do_bootm_linux(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[],
+		    ulong addr, ulong * len_ptr, int verify)
+{
+	int (*appl)(char *cmdline);
+	char *cmdline;
+
+#ifdef SHARED_RESOURCES
+	swap_to(FLASH);
+#endif
+
+	appl = (int (*)(char *))ntohl(header.ih_ep);
+	printf("Starting Kernel at = %x\n", appl);
+	cmdline = make_command_line();
+	if(icache_status()){
+		flush_instruction_cache();
+		icache_disable();
+		}
+	if(dcache_status()){
+		flush_data_cache();
+		dcache_disable();
+		}
+	(*appl)(cmdline);
+}
+
+char *make_command_line(void)
+{
+    char *dest = (char *) CMD_LINE_ADDR;
+    char *bootargs;
+
+    if ( (bootargs = getenv("bootargs")) == NULL )
+	return NULL;
+
+    strncpy(dest, bootargs, 0x1000);
+    dest[0xfff] = 0;
+    return dest;
+}
diff --git a/lib_blackfin/bf533_string.c b/lib_blackfin/bf533_string.c
new file mode 100644
index 0000000..cfa515a
--- /dev/null
+++ b/lib_blackfin/bf533_string.c
@@ -0,0 +1,185 @@
+/*
+ * U-boot - bf533_string.c Contains library routines.
+ *
+ * Copyright (c) 2005 blackfin.uclinux.org
+ *
+ * (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
+ */
+
+#include <common.h>
+#include <asm/setup.h>
+#include <asm/page.h>
+#include <asm/cpu/defBF533.h>
+
+void *dma_memcpy(void *,const void *,size_t);
+
+char *strcpy(char *dest, const char *src)
+{
+	char *xdest = dest;
+	char temp = 0;
+
+	__asm__ __volatile__
+		("1:\t%2 = B [%1++] (Z);\n\t"
+		"B [%0++] = %2;\n\t"
+		"CC = %2;\n\t"
+		"if cc jump 1b (bp);\n":"=a"(dest), "=a"(src), "=d"(temp)
+		:"0"(dest), "1"(src), "2"(temp):"memory");
+
+	return xdest;
+}
+
+char *strncpy(char *dest, const char *src, size_t n)
+{
+	char *xdest = dest;
+	char temp = 0;
+
+	if (n == 0)
+		return xdest;
+
+	__asm__ __volatile__
+		("1:\t%3 = B [%1++] (Z);\n\t"
+		"B [%0++] = %3;\n\t"
+		"CC = %3;\n\t"
+		"if ! cc jump 2f;\n\t"
+		"%2 += -1;\n\t"
+		"CC = %2 == 0;\n\t"
+		"if ! cc jump 1b (bp);\n"
+		"2:\n":"=a"(dest), "=a"(src), "=da"(n), "=d"(temp)
+		:"0"(dest), "1"(src), "2"(n), "3"(temp)
+		:"memory");
+
+	return xdest;
+}
+
+int strcmp(const char *cs, const char *ct)
+{
+	char __res1, __res2;
+
+	__asm__
+		("1:\t%2 = B[%0++] (Z);\n\t"	/* get *cs */
+		"%3 = B[%1++] (Z);\n\t"		/* get *ct */
+		"CC = %2 == %3;\n\t"		/* compare a byte */
+		"if ! cc jump 2f;\n\t"		/* not equal, break out */
+		"CC = %2;\n\t"			/* at end of cs? */
+		"if cc jump 1b (bp);\n\t"	/* no, keep going */
+		"jump.s 3f;\n"			/* strings are equal */
+		"2:\t%2 = %2 - %3;\n"		/* *cs - *ct */
+		"3:\n":	"=a"(cs), "=a"(ct), "=d"(__res1),
+		"=d"(__res2)
+		: "0"(cs), "1"(ct));
+
+	return __res1;
+}
+
+int strncmp(const char *cs, const char *ct, size_t count)
+{
+	char __res1, __res2;
+
+	if (!count)
+		return 0;
+
+	__asm__
+		("1:\t%3 = B[%0++] (Z);\n\t"	/* get *cs */
+		"%4 = B[%1++] (Z);\n\t"		/* get *ct */
+		"CC = %3 == %4;\n\t"		/* compare a byte */
+		"if ! cc jump 3f;\n\t"		/* not equal, break out */
+		"CC = %3;\n\t"			/* at end of cs? */
+		"if ! cc jump 4f;\n\t"		/* yes, all done */
+		"%2 += -1;\n\t"			/* no, adjust count */
+		"CC = %2 == 0;\n\t" "if ! cc jump 1b;\n"	/* more to do, keep going */
+		"2:\t%3 = 0;\n\t"		/* strings are equal */
+		"jump.s    4f;\n" "3:\t%3 = %3 - %4;\n"	/* *cs - *ct */
+ 		"4:":	"=a"(cs), "=a"(ct), "=da"(count), "=d"(__res1),
+		"=d"(__res2)
+		: "0"(cs), "1"(ct), "2"(count));
+
+	return __res1;
+}
+
+/*
+ * memcpy - Copy one area of memory to another
+ * @dest: Where to copy to
+ * @src: Where to copy from
+ * @count: The size of the area.
+ *
+ * You should not use this function to access IO space, use memcpy_toio()
+ * or memcpy_fromio() instead.
+ */
+void * memcpy(void * dest,const void *src,size_t count)
+{
+	char *tmp = (char *) dest, *s = (char *) src;
+	
+/* Turn off the cache, if destination in the L1 memory */
+	if ( (tmp >= (char *)L1_ISRAM) && (tmp < (char *)L1_ISRAM_END)
+		|| (tmp >= (char *)DATA_BANKA_SRAM) && (tmp < DATA_BANKA_SRAM_END)
+	    || (tmp >= (char *)DATA_BANKB_SRAM) && (tmp < DATA_BANKB_SRAM_END) ){
+			if(icache_status()){
+					blackfin_icache_flush_range(src, src+count);
+					icache_disable();
+			}
+			if(dcache_status()){
+					blackfin_dcache_flush_range(src, src+count);
+					dcache_disable();
+			}
+			dma_memcpy(dest,src,count);
+	}else{
+		while(count--)
+			*tmp++ = *s++;
+	}
+	return dest;
+}
+
+void *dma_memcpy(void * dest,const void *src,size_t count)
+{
+	
+		*pMDMA_D0_IRQ_STATUS = DMA_DONE | DMA_ERR;
+
+		/* Copy sram functions from sdram to sram */
+		/* Setup destination start address */
+		*pMDMA_D0_START_ADDR = (volatile void **)dest;
+		/* Setup destination xcount */
+		*pMDMA_D0_X_COUNT = count ;
+		/* Setup destination xmodify */
+		*pMDMA_D0_X_MODIFY = 1;
+
+		/* Setup Source start address */
+		*pMDMA_S0_START_ADDR = (volatile void **)src;
+		/* Setup Source xcount */
+		*pMDMA_S0_X_COUNT = count;
+		/* Setup Source xmodify */
+		*pMDMA_S0_X_MODIFY = 1;
+
+		/* Enable source DMA */
+		*pMDMA_S0_CONFIG = (DMAEN);
+		asm("ssync;");
+
+		*pMDMA_D0_CONFIG = ( WNR | DMAEN);
+		
+		while(*pMDMA_D0_IRQ_STATUS & DMA_RUN){
+			*pMDMA_D0_IRQ_STATUS |= (DMA_DONE | DMA_ERR);
+		}
+		*pMDMA_D0_IRQ_STATUS |= (DMA_DONE | DMA_ERR);
+
+		dest += count;
+		src  += count;
+		return dest;
+}
diff --git a/lib_blackfin/blackfin_board.h b/lib_blackfin/blackfin_board.h
new file mode 100644
index 0000000..35a513f
--- /dev/null
+++ b/lib_blackfin/blackfin_board.h
@@ -0,0 +1,62 @@
+/*
+ * U-boot - blackfin_board.h
+ *
+ * Copyright (c) 2005 blackfin.uclinux.org
+ *
+ * (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
+ */
+
+#ifndef __BLACKFIN_BOARD_H__
+#define __BLACKFIN_BOARD_H__
+
+extern void timer_init(void);
+extern void init_IRQ(void);
+extern void rtc_init(void);
+
+extern ulong uboot_end_data;
+extern ulong uboot_end;
+
+ulong monitor_flash_len;
+
+
+#define VERSION_STRING_SIZE  150 /* including 40 bytes buffer to change any string */ 
+#define VERSION_STRING_FORMAT "%s (%s - %s)\n"
+#define VERSION_STRING		U_BOOT_VERSION, __DATE__, __TIME__
+
+char version_string[VERSION_STRING_SIZE];
+
+int *g_addr;
+static ulong mem_malloc_start;
+static ulong mem_malloc_end;
+static ulong mem_malloc_brk;
+extern char _sram_in_sdram_start[];
+extern char _sram_inst_size[];
+#ifdef DEBUG
+static void display_global_data(void);
+#endif
+
+/* definitions used to check the SMC card availability */
+#define SMC_BASE_ADDRESS CONFIG_SMC91111_BASE
+#define UPPER_BYTE_MASK	0xFF00
+#define SMC_IDENT	0x3300
+
+#endif
diff --git a/lib_blackfin/board.c b/lib_blackfin/board.c
new file mode 100644
index 0000000..7bf63eb
--- /dev/null
+++ b/lib_blackfin/board.c
@@ -0,0 +1,282 @@
+/*
+ * U-boot - board.c First C file to be called contains init routines
+ *
+ * Copyright (c) 2005 blackfin.uclinux.org
+ *
+ * (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
+ */
+
+#include <common.h>
+#include <command.h>
+#include <malloc.h>
+#include <devices.h>
+#include <version.h>
+#include <net.h>
+#include <environment.h>
+#include "blackfin_board.h"
+#include "../drivers/smc91111.h"
+
+extern flash_info_t flash_info[];
+
+
+static void mem_malloc_init(void)
+{
+	mem_malloc_start = CFG_MALLOC_BASE;
+	mem_malloc_end = (CFG_MALLOC_BASE + CFG_MALLOC_LEN);
+	mem_malloc_brk = mem_malloc_start;
+	memset((void *) mem_malloc_start, 0,
+	mem_malloc_end - mem_malloc_start);
+}
+
+void *sbrk(ptrdiff_t increment)
+{
+	ulong old = mem_malloc_brk;
+	ulong new = old + increment;
+
+	if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
+		return (NULL);
+	}
+	mem_malloc_brk = new;
+
+	return ((void *) old);
+}
+
+static int display_banner(void)
+{
+	sprintf(version_string, VERSION_STRING_FORMAT, VERSION_STRING);
+	printf("%s\n", version_string);
+	return (0);
+}
+
+static void display_flash_config(ulong size)
+{
+	puts("FLASH:  ");
+	print_size(size, "\n");
+	return;
+}
+
+static int init_baudrate(void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	uchar tmp[64];
+	int i = getenv_r("baudrate", tmp, sizeof(tmp));
+	gd->bd->bi_baudrate = gd->baudrate = (i > 0)
+		? (int) simple_strtoul(tmp, NULL, 10)
+		: CONFIG_BAUDRATE;
+	return (0);
+}
+
+#ifdef DEBUG
+static void display_global_data(void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+	bd_t *bd;
+	bd = gd->bd;
+	printf("--flags:%x\n", gd->flags);
+	printf("--board_type:%x\n", gd->board_type);
+	printf("--baudrate:%x\n", gd->baudrate);
+	printf("--have_console:%x\n", gd->have_console);
+	printf("--ram_size:%x\n", gd->ram_size);
+	printf("--reloc_off:%x\n", gd->reloc_off);
+	printf("--env_addr:%x\n", gd->env_addr);
+	printf("--env_valid:%x\n", gd->env_valid);
+	printf("--bd:%x %x\n", gd->bd, bd);
+	printf("---bi_baudrate:%x\n", bd->bi_baudrate);
+	printf("---bi_ip_addr:%x\n", bd->bi_ip_addr);
+	printf("---bi_enetaddr:%x %x %x %x %x %x\n",
+				bd->bi_enetaddr[0],
+				bd->bi_enetaddr[1],
+				bd->bi_enetaddr[2],
+				bd->bi_enetaddr[3],
+				bd->bi_enetaddr[4],
+				bd->bi_enetaddr[5]);
+	printf("---bi_arch_number:%x\n", bd->bi_arch_number);
+	printf("---bi_boot_params:%x\n", bd->bi_boot_params);
+	printf("---bi_memstart:%x\n", bd->bi_memstart);
+	printf("---bi_memsize:%x\n", bd->bi_memsize);
+	printf("---bi_flashstart:%x\n", bd->bi_flashstart);
+	printf("---bi_flashsize:%x\n", bd->bi_flashsize);
+	printf("---bi_flashoffset:%x\n", bd->bi_flashoffset);
+	printf("--jt:%x *:%x\n", gd->jt, *(gd->jt));
+}
+#endif
+
+/*
+ * All attempts to come up with a "common" initialization sequence
+ * that works for all boards and architectures failed: some of the
+ * requirements are just _too_ different. To get rid of the resulting
+ * mess of board dependend #ifdef'ed code we now make the whole
+ * initialization sequence configurable to the user.
+ *
+ * The requirements for any new initalization function is simple: it
+ * receives a pointer to the "global data" structure as it's only
+ * argument, and returns an integer return code, where 0 means
+ * "continue" and != 0 means "fatal error, hang the system".
+ */
+
+void board_init_f(ulong bootflag)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+	ulong addr;
+	bd_t *bd;
+
+	gd = (gd_t *) (CFG_GBL_DATA_ADDR);
+	memset((void *) gd, 0, sizeof(gd_t));
+
+	/* Board data initialization */
+	addr = (CFG_GBL_DATA_ADDR + sizeof(gd_t));
+
+	/* Align to 4 byte boundary */
+        addr &= ~(4 - 1);
+	bd = (bd_t*)addr;
+	gd->bd = bd;
+	memset((void *) bd, 0, sizeof(bd_t));
+
+	/* Initialize */
+	init_IRQ();
+	env_init();		/* initialize environment */
+	init_baudrate();	/* initialze baudrate settings */
+	serial_init();		/* serial communications setup */
+	console_init_f();
+	display_banner();	/* say that we are here */
+	checkboard();
+#if defined(CONFIG_RTC_BF533) && (CONFIG_COMMANDS & CFG_CMD_DATE)
+	rtc_init();
+#endif
+	timer_init();
+	printf("Clock: VCO: %lu MHz, Core: %lu MHz, System: %lu MHz\n", \
+	CONFIG_VCO_HZ/1000000, CONFIG_CCLK_HZ/1000000, CONFIG_SCLK_HZ/1000000);
+	printf("SDRAM: ");
+	print_size(initdram(0), "\n");
+	board_init_r((gd_t *) gd, 0x20000010);
+}
+
+void board_init_r(gd_t * id, ulong dest_addr)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+	ulong size;
+	extern void malloc_bin_reloc(void);
+	char *s, *e;
+	bd_t *bd;
+	int i;
+	gd = id;
+	gd->flags |= GD_FLG_RELOC;	/* tell others: relocation done */
+	bd = gd->bd;
+
+#if	CONFIG_STAMP
+	/* There are some other pointer constants we must deal with */
+	/* configure available FLASH banks */
+	size = flash_init();
+	display_flash_config(size);
+	flash_protect(FLAG_PROTECT_SET, CFG_FLASH_BASE, CFG_FLASH_BASE + 0x1ffff, &flash_info[0]);
+	bd->bi_flashstart = CFG_FLASH_BASE;
+	bd->bi_flashsize = size;
+	bd->bi_flashoffset = 0;
+#else
+	bd->bi_flashstart = 0;
+	bd->bi_flashsize = 0;
+	bd->bi_flashoffset = 0;
+#endif
+	/* initialize malloc() area */
+	mem_malloc_init();
+	malloc_bin_reloc();
+
+	/* relocate environment function pointers etc. */
+	env_relocate();
+
+	/* board MAC address */
+	s = getenv("ethaddr");
+	for (i = 0; i < 6; ++i) {
+		bd->bi_enetaddr[i] = s ? simple_strtoul(s, &e, 16) : 0;
+		if (s)
+			s = (*e) ? e + 1 : e;
+	}
+
+	/* IP Address */
+	bd->bi_ip_addr = getenv_IPaddr("ipaddr");
+
+	/* Initialize devices */
+	devices_init();
+	jumptable_init();
+
+	/* Initialize the console (after the relocation and devices init) */
+	console_init_r();
+
+	/* Initialize from environment */
+	if ((s = getenv("loadaddr")) != NULL) {
+		load_addr = simple_strtoul(s, NULL, 16);
+	}
+#if (CONFIG_COMMANDS & CFG_CMD_NET)
+	if ((s = getenv("bootfile")) != NULL) {
+		copy_filename(BootFile, s, sizeof(BootFile));
+	}
+#endif
+#if defined(CONFIG_MISC_INIT_R)
+	/* miscellaneous platform dependent initialisations */
+	misc_init_r();
+#endif
+
+#ifdef CONFIG_DRIVER_SMC91111
+#ifdef SHARED_RESOURCES
+	/* Switch to Ethernet */
+	swap_to(ETHERNET);
+#endif
+	if  ( (SMC_inw(BANK_SELECT) & UPPER_BYTE_MASK) != SMC_IDENT ) {
+		printf("ERROR: Can't find SMC91111 at address %x\n", SMC_BASE_ADDRESS);
+	} else {
+		printf("Net:   SMC91111 at 0x%08X\n", SMC_BASE_ADDRESS);
+	}
+
+#ifdef SHARED_RESOURCES
+	swap_to(FLASH);
+#endif
+#endif
+#ifdef CONFIG_SOFT_I2C
+	init_func_i2c();
+#endif
+
+#ifdef DEBUG
+	display_global_data(void);
+#endif
+
+	/* main_loop() can return to retry autoboot, if so just run it again. */
+	for (;;) {
+		main_loop();
+	}
+}
+
+#ifdef CONFIG_SOFT_I2C
+static int init_func_i2c (void)
+{
+	puts ("I2C:   ");
+	i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
+	puts ("ready\n");
+	return (0);
+}
+#endif
+
+void hang(void)
+{
+	puts("### ERROR ### Please RESET the board ###\n");
+	for (;;);
+}
diff --git a/lib_blackfin/cache.c b/lib_blackfin/cache.c
new file mode 100644
index 0000000..4213b86
--- /dev/null
+++ b/lib_blackfin/cache.c
@@ -0,0 +1,41 @@
+/*
+ * U-boot - cache.c
+ *
+ * Copyright (c) 2005 blackfin.uclinux.org
+ *
+ * (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
+ */
+
+/* for now: just dummy functions to satisfy the linker */
+extern void blackfin_icache_range(unsigned long *,unsigned long *);
+extern void blackfin_dcache_range(unsigned long *,unsigned long *);
+void flush_cache(unsigned long dummy1, unsigned long dummy2)
+{
+	if(icache_status()){
+		blackfin_icache_flush_range(dummy1,dummy1+dummy2);
+		}
+	if(dcache_status()){
+		blackfin_dcache_flush_range(dummy1,dummy1+dummy2);
+		}
+	return;
+}
+
diff --git a/lib_blackfin/muldi3.c b/lib_blackfin/muldi3.c
new file mode 100644
index 0000000..a562242
--- /dev/null
+++ b/lib_blackfin/muldi3.c
@@ -0,0 +1,92 @@
+/*
+ * U-boot - muldi3.c contains routines for mult and div
+ *
+ * Copyright (c) 2005 blackfin.uclinux.org
+ *
+ * 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
+ */
+
+/* Generic function got from GNU gcc package, libgcc2.c */
+#ifndef SI_TYPE_SIZE
+#define SI_TYPE_SIZE 32
+#endif
+#define __ll_B (1L << (SI_TYPE_SIZE / 2))
+#define __ll_lowpart(t) ((USItype) (t) % __ll_B)
+#define __ll_highpart(t) ((USItype) (t) / __ll_B)
+#define BITS_PER_UNIT 8
+
+#if !defined (umul_ppmm)
+#define umul_ppmm(w1, w0, u, v)						\
+do {									\
+	USItype __x0, __x1, __x2, __x3;					\
+	USItype __ul, __vl, __uh, __vh;					\
+									\
+	__ul = __ll_lowpart (u);					\
+	__uh = __ll_highpart (u);					\
+	__vl = __ll_lowpart (v);					\
+	__vh = __ll_highpart (v);					\
+									\
+	__x0 = (USItype) __ul * __vl;					\
+	__x1 = (USItype) __ul * __vh;					\
+	__x2 = (USItype) __uh * __vl;					\
+	__x3 = (USItype) __uh * __vh;					\
+									\
+	__x1 += __ll_highpart (__x0);/* this can't give carry */	\
+	__x1 += __x2;	/* but this indeed can */			\
+	if (__x1 < __x2)	/* did we get it? */			\
+		__x3 += __ll_B;	/* yes, add it in the proper pos. */	\
+									\
+	(w1) = __x3 + __ll_highpart (__x1);				\
+	(w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0);	\
+} while (0)
+#endif
+
+#if !defined (__umulsidi3)
+#define __umulsidi3(u, v)						\
+	({DIunion __w;							\
+	umul_ppmm (__w.s.high, __w.s.low, u, v);			\
+	__w.ll; })
+#endif
+
+typedef unsigned int USItype    __attribute__ ((mode (SI)));
+typedef int SItype     __attribute__ ((mode (SI)));
+typedef int DItype     __attribute__ ((mode (DI)));
+typedef	int word_type __attribute__ ((mode (__word__)));
+
+struct DIstruct {SItype low, high;};
+typedef union
+{
+	struct DIstruct s;
+	DItype ll;
+} DIunion;
+
+DItype __muldi3 (DItype u, DItype v)
+{
+	DIunion w;
+	DIunion uu, vv;
+ 
+	uu.ll = u,
+	vv.ll = v;
+	/*  panic("kernel panic for __muldi3"); */
+	w.ll = __umulsidi3 (uu.s.low, vv.s.low);
+	w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high
+	+ (USItype) uu.s.high * (USItype) vv.s.low);
+ 
+	return w.ll;
+}