due to popular demand, added flash_and_burn to the freebios2 tree.

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1232 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

23 files changed, 2574 insertions, 0 deletions

diff --git a/util/flash_and_burn/82802ab.c b/util/flash_and_burn/82802ab.c
new file mode 100644
index 0000000000..c818e92151
--- /dev/null
+++ b/util/flash_and_burn/82802ab.c
@@ -0,0 +1,199 @@
+/*
+ * 82802ab.c: driver for programming JEDEC standard flash parts
+ *
+ *
+ * Copyright 2000 Silicon Integrated System Corporation
+ *
+ *	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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * Reference: http://www.intel.com/design/chipsets/datashts/290658.htm
+ *
+ * $Id$
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/io.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "flash.h"
+#include "82802ab.h"
+
+// I need that Berkeley bit-map printer
+void print_82802ab_status(unsigned char status)
+{
+	printf("%s", status & 0x80 ? "Ready:" : "Busy:");
+	printf("%s", status & 0x40 ? "BE SUSPEND:" : "BE RUN/FINISH:");
+	printf("%s", status & 0x20 ? "BE ERROR:" : "BE OK:");
+	printf("%s", status & 0x10 ? "PROG ERR:" : "PROG OK:");
+	printf("%s", status & 0x8 ? "VP ERR:" : "VPP OK:");
+	printf("%s", status & 0x4 ? "PROG SUSPEND:" : "PROG RUN/FINISH:");
+	printf("%s", status & 0x2 ? "WP|TBL#|WP#,ABORT:" : "UNLOCK:");
+}
+
+int probe_82802ab (struct flashchip * flash)
+{
+	volatile unsigned char * bios = flash->virt_addr;
+	unsigned char  id1, id2;
+
+#if 0
+	*(volatile unsigned char *) (bios + 0x5555) = 0xAA;
+	*(volatile unsigned char *) (bios + 0x2AAA) = 0x55;
+	*(volatile unsigned char *) (bios + 0x5555) = 0x90;
+#endif
+
+	*bios = 0xff;
+	myusec_delay(10);
+	*bios = 0x90;
+	myusec_delay(10);
+
+	id1 = *(volatile unsigned char *) bios;
+	id2 = *(volatile unsigned char *) (bios + 0x01);
+
+#if 1
+	*(volatile unsigned char *) (bios + 0x5555) = 0xAA;
+	*(volatile unsigned char *) (bios + 0x2AAA) = 0x55;
+	*(volatile unsigned char *) (bios + 0x5555) = 0xF0;
+
+#endif
+	myusec_delay(10);
+
+	printf("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, id1, id2);	
+
+	if (id1 == flash->manufacture_id && id2 == flash->model_id) {
+		size_t size = flash->total_size * 1024;
+		// we need to mmap the write-protect space. 
+        	bios = mmap (0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
+                     flash->fd_mem, (off_t) (0 - 0x400000 - size));
+        	if (bios == MAP_FAILED) {
+			// it's this part but we can't map it ...
+            		perror("Error MMAP /dev/mem");
+            		exit(1);
+        	}
+
+		flash->virt_addr_2 = bios;
+		return 1;
+	}
+
+	return 0;
+}
+
+unsigned char wait_82802ab(volatile unsigned char * bios)
+{
+
+	unsigned char status;
+	unsigned char id1, id2;
+
+	*bios = 0x70;
+	if ((*bios & 0x80) == 0) { // it's busy
+		while ((*bios & 0x80) == 0)
+			;
+	}
+
+	status = *bios;
+
+	// put another command to get out of status register mode
+	
+	*bios = 0x90;
+	myusec_delay(10);
+
+	id1 = *(volatile unsigned char *) bios;
+	id2 = *(volatile unsigned char *) (bios + 0x01);
+		
+	// this is needed to jam it out of "read id" mode
+	*(volatile unsigned char *) (bios + 0x5555) = 0xAA;
+	*(volatile unsigned char *) (bios + 0x2AAA) = 0x55;
+	*(volatile unsigned char *) (bios + 0x5555) = 0xF0;
+	return status;
+  
+}
+int erase_82802ab_block(struct flashchip *flash, int offset)
+{
+	volatile unsigned char * bios = flash->virt_addr + offset;
+	volatile unsigned char *wrprotect = flash->virt_addr_2 + offset + 2;
+	unsigned char status;
+
+	// clear status register
+	*bios = 0x50;
+	//printf("Erase at %p\n", bios);
+	// clear write protect
+	//printf("write protect is at %p\n", (wrprotect));
+	//printf("write protect is 0x%x\n", *(wrprotect));
+	*(wrprotect) = 0;
+	//printf("write protect is 0x%x\n", *(wrprotect));
+
+	// now start it
+	*(volatile unsigned char *) (bios) = 0x20;
+	*(volatile unsigned char *) (bios) = 0xd0;
+	myusec_delay(10);
+	// now let's see what the register is
+	status = wait_82802ab(flash->virt_addr);
+	//print_82802ab_status(status);
+	printf("DONE BLOCK 0x%x\n", offset);
+	return(0);
+}
+int erase_82802ab (struct flashchip * flash)
+{
+	int i;
+	unsigned int total_size = flash->total_size * 1024;
+
+	printf("total_size is %d; flash->page_size is %d\n", 
+			 total_size, flash->page_size);
+	for(i = 0; i < total_size; i += flash->page_size)
+		erase_82802ab_block(flash, i);
+	printf("DONE ERASE\n");
+	return(0);
+}
+
+void write_page_82802ab (volatile char * bios, char * src, volatile char * dst,
+                                         int page_size)
+{
+        int i;
+
+        for (i = 0; i < page_size; i++) {
+                /* transfer data from source to destination */
+                *dst = 0x40;
+                *dst++ = *src++;
+		wait_82802ab(bios);
+        }
+
+}
+
+int write_82802ab (struct flashchip * flash, unsigned char * buf)
+{
+	int i;
+	int total_size = flash->total_size *1024, page_size = flash->page_size;
+	volatile unsigned char * bios = flash->virt_addr;
+
+	erase_82802ab (flash);
+	if (*bios != 0xff) {
+		printf("ERASE FAILED\n");
+		return -1;
+	}
+	printf ("Programming Page: ");
+	for (i = 0; i < total_size/page_size; i++) {
+		printf ("%04d at address: 0x%08x", i, i * page_size);
+		write_page_82802ab(bios, buf + i * page_size, bios + i * page_size,
+				 page_size);
+		printf ("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
+	}
+	printf("\n");
+	protect_82802ab (bios);
+	return(0);
+}
diff --git a/util/flash_and_burn/82802ab.h b/util/flash_and_burn/82802ab.h
new file mode 100644
index 0000000000..61e7f100af
--- /dev/null
+++ b/util/flash_and_burn/82802ab.h
@@ -0,0 +1,48 @@
+#ifndef __82802AB_H__
+#define __82802AB_H__ 1
+
+extern int probe_82802ab (struct flashchip * flash);
+extern int erase_82802ab (struct flashchip * flash);
+extern int write_82802ab (struct flashchip * flash, unsigned char * buf);
+
+extern __inline__ void toggle_ready_82802ab (volatile char * dst)
+{
+	unsigned int i = 0;
+	char tmp1, tmp2;
+
+	tmp1 = *dst & 0x40;
+
+	while (i++ < 0xFFFFFF) {
+		tmp2 = *dst & 0x40;
+		if (tmp1 == tmp2) {
+			break;
+		}
+		tmp1 = tmp2;
+	}
+}
+
+extern __inline__ void data_polling_82802ab (volatile char * dst, char data)
+{
+	unsigned int i = 0;
+	char tmp;
+
+	data &= 0x80;
+
+	while (i++ < 0xFFFFFF) {
+		tmp = *dst & 0x80;
+		if (tmp == data) {
+			break;
+		}
+	}
+}
+
+extern __inline__ void protect_82802ab (volatile char * bios)
+{
+	*(volatile char *) (bios + 0x5555) = 0xAA;
+	*(volatile char *) (bios + 0x2AAA) = 0x55;
+	*(volatile char *) (bios + 0x5555) = 0xA0;
+
+	usleep(200);
+}
+
+#endif /* !__82802AB_H__ */
diff --git a/util/flash_and_burn/Makefile b/util/flash_and_burn/Makefile
new file mode 100644
index 0000000000..5c8ffe9d42
--- /dev/null
+++ b/util/flash_and_burn/Makefile
@@ -0,0 +1,30 @@
+OBJS = jedec.o sst28sf040.o am29f040b.o mx29f002.c sst39sf020.o m29f400bt.o \
+	w49f002u.o 82802ab.o msys_doc.o
+CC = gcc -O2 -g -Wall -Werror
+
+all: flash_rom flash_on
+
+flash_rom: flash_rom.o ${OBJS}
+	${CC} -o flash_rom flash_rom.c ${OBJS} -lpci
+
+flash_on: flash_on.c
+	${CC} -o flash_on flash_on.c
+
+clean:
+	rm -f flash_rom flash_on *.o *~
+
+flash_rom.o: flash_rom.c flash.h jedec.h \
+	82802ab.h am29f040b.h m29f400bt.h msys_doc.h mx29f002.h sst28sf040.h \
+	sst39sf020.h w49f002u.h
+flash_on.o: flash_on.c
+
+82802ab.o:    82802ab.c    82802ab.h            flash.h
+am29f040b.o:  am29f040b.c  am29f040b.h  jedec.h flash.h
+m29f400bt.o:  m29f400bt.c  m29f400bt.h          flash.h
+msys_doc.o:   msys_doc.c   msys_doc.h           flash.h
+mx29f002.o:   mx29f002.c   mx29f002.h   jedec.h flash.h
+sst28sf040.o: sst28sf040.c sst28sf040.h jedec.h flash.h
+sst39sf020.o: sst39sf020.c sst39sf020.h jedec.h flash.h
+w49f002u.o:   w49f002u.c   w49f002u.h   jedec.h flash.h
+
+jedec.o:      jedec.c                   jedec.h flash.h
diff --git a/util/flash_and_burn/README b/util/flash_and_burn/README
new file mode 100644
index 0000000000..48f6fb8754
--- /dev/null
+++ b/util/flash_and_burn/README
@@ -0,0 +1,20 @@
+on the cs5530 southbridge, 
+
+setpci -s 0:12.0 52.b=ee
+setpci -x 0:12.0 5b.b= 0x20 (| with whatever is there)
+
+I am making this a general-purpose userland flash burner -- RGM
+
+Earlier notes from Ollie:
+
+Here is some utilities for using/programming flash ROM on SiS 630/950 M/Bs
+
+	1. flash_on, turnning on the flash writer enable for 630/950 M/Bs,
+ 	   you have to run this before load DoC drivers.
+
+	2. flash_rom, use your 630/950 M/Bs as a flash programmer for some
+	   flash parts. This utility is made as modular as possible. If
+	   you find your flash part is not supported, you can add a driver
+	   your own. Or sending me the data sheet.
+
+Ollie
diff --git a/util/flash_and_burn/am29f040b.c b/util/flash_and_burn/am29f040b.c
new file mode 100644
index 0000000000..89cdff9806
--- /dev/null
+++ b/util/flash_and_burn/am29f040b.c
@@ -0,0 +1,130 @@
+/*
+ * am29f040.c: driver for programming AMD am29f040b models
+ *
+ *
+ * Copyright 2000 Silicon Integrated System Corporation
+ *
+ *	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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * Reference:
+ *	AMD Am29F040B data sheet
+ * $Id$
+ */
+
+#include <stdio.h>
+#include "flash.h"
+#include "jedec.h"
+
+static __inline__ int erase_sector_29f040b (volatile char * bios, unsigned long address)
+{
+	*(bios +   0x555) = 0xAA;
+	*(bios +   0x2AA) = 0x55;
+	*(bios +   0x555) = 0x80;
+	*(bios +   0x555) = 0xAA;
+	*(bios +   0x2AA) = 0x55;
+	*(bios + address) = 0x30;
+
+	sleep(2);
+
+	/* wait for Toggle bit ready         */
+	toggle_ready_jedec(bios + address);
+
+	return(0);
+}
+
+static __inline__ int write_sector_29f040b(volatile char * bios, unsigned char * src,
+				       volatile unsigned char * dst, unsigned int page_size)
+{
+	int i;
+
+	for (i = 0; i < page_size; i++) {
+		printf("0x%08lx", (unsigned long) dst - (unsigned long) bios);
+	
+		*(bios + 0x555) = 0xAA;
+		*(bios + 0x2AA) = 0x55;
+		*(bios + 0x555) = 0xA0;
+		*dst++ = *src++;
+
+		/* wait for Toggle bit ready */
+		toggle_ready_jedec(bios);
+
+		printf("\b\b\b\b\b\b\b\b\b\b");
+	}
+
+	return(0);
+}
+
+int probe_29f040b (struct flashchip * flash)
+{
+	volatile char * bios = flash->virt_addr;
+	unsigned char id1, id2;
+
+	*(bios + 0x555) = 0xAA;
+	*(bios + 0x2AA) = 0x55;
+	*(bios + 0x555) = 0x90;
+    
+	id1 = *(unsigned char *) bios;
+	id2 = *(unsigned char *) (bios + 0x01);
+
+	*bios = 0xF0;
+
+	myusec_delay(10);
+    
+	printf("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, id1, id2);
+	if (id1 == flash->manufacture_id && id2 == flash->model_id)
+		return 1;
+
+	return 0;
+}
+
+int erase_29f040b (struct flashchip * flash)
+{
+	volatile char * bios = flash->virt_addr;
+
+	*(bios + 0x555) = 0xAA;
+	*(bios + 0x2AA) = 0x55;
+	*(bios + 0x555) = 0x80;
+	*(bios + 0x555) = 0xAA;
+	*(bios + 0x2AA) = 0x55;
+	*(bios + 0x555) = 0x10;
+
+	myusec_delay(10);
+	toggle_ready_jedec(bios);
+
+	return(0);
+}
+
+int write_29f040b (struct flashchip * flash, unsigned char * buf)
+{
+	int i;
+	int total_size = flash->total_size * 1024, page_size = flash->page_size;
+	volatile char * bios = flash->virt_addr;
+
+	printf ("Programming Page: ");
+	for (i = 0; i < total_size/page_size; i++) {
+		/* erase the page before programming */
+		erase_sector_29f040b(bios, i * page_size);
+
+		/* write to the sector */
+		printf ("%04d at address: ", i);
+		write_sector_29f040b(bios, buf + i * page_size, bios + i * page_size,
+				     page_size);
+		printf ("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
+	}
+	printf("\n");
+
+	return(0);
+}
diff --git a/util/flash_and_burn/am29f040b.h b/util/flash_and_burn/am29f040b.h
new file mode 100644
index 0000000000..dee8f629a6
--- /dev/null
+++ b/util/flash_and_burn/am29f040b.h
@@ -0,0 +1,8 @@
+#ifndef __AM29F040B_H__
+#define __AM29F040B_H__ 1
+
+extern int probe_29f040b (struct flashchip * flash);
+extern int erase_29f040b (struct flashchip * flash);
+extern int write_29f040b (struct flashchip * flash, unsigned char * buf);
+
+#endif /* !__AM29F040B_H__ */
diff --git a/util/flash_and_burn/flash.h b/util/flash_and_burn/flash.h
new file mode 100644
index 0000000000..0e62b89753
--- /dev/null
+++ b/util/flash_and_burn/flash.h
@@ -0,0 +1,55 @@
+#ifndef __FLASH_H__
+#define __FLASH_H__ 1
+
+#include <sys/io.h>
+#include <unistd.h>
+
+struct flashchip {
+	char * name;
+	int manufacture_id;
+	int model_id;
+
+	volatile char * virt_addr;
+	int total_size;
+	int page_size;
+
+	int (*probe) (struct flashchip * flash);
+	int (*erase) (struct flashchip * flash);
+	int (*write) (struct flashchip * flash, unsigned char * buf);
+	int (*read)  (struct flashchip * flash, unsigned char * buf);
+
+	int fd_mem;
+	volatile char *virt_addr_2;
+};
+
+#define AMD_ID            0x01
+#define AM_29F040B        0xA4
+
+#define ATMEL_ID          0x1F    /* Winbond Manufacture ID code	*/
+#define AT_29C040A        0xA4    /* Winbond w29c020c device code*/
+
+#define MX_ID             0xC2
+#define MX_29F002         0xB0
+
+#define SST_ID            0xBF	/* SST Manufacturer ID[B code	*/
+#define SST_29EE020A      0x10	/* SST 29EE020 device code	*/
+#define SST_28SF040       0x04    /* SST 29EE040 device code	*/
+#define SST_39SF020       0xB6    /* SST 39SF020  device        */
+#define SST_39VF020       0xD6    /* SST 39SF020  device        */
+
+#define WINBOND_ID        0xDA	/* Winbond Manufacture ID code	*/
+#define W_29C011          0xC1	/* Winbond w29c011 device code*/
+#define W_29C020C         0x45	/* Winbond w29c020c device code*/
+#define W_49F002U         0x0B	/* Winbond w29c020c device code*/
+
+#define ST_ID       	  0x20	
+#define ST_M29F400BT      0xD5
+
+#define MSYSTEMS_ID       0x156f
+#define MSYSTEMS_MD2200   0xdb /* ? */
+#define MSYSTEMS_MD2800   0x30 /* hmm -- both 0x30 */
+#define MSYSTEMS_MD2802   0x30 /* hmm -- both 0x30 */
+
+extern void myusec_delay(int time);
+
+#endif /* !__FLASH_H__ */
diff --git a/util/flash_and_burn/flash_on.c b/util/flash_and_burn/flash_on.c
new file mode 100644
index 0000000000..a43f1da8c2
--- /dev/null
+++ b/util/flash_and_burn/flash_on.c
@@ -0,0 +1,77 @@
+/*
+ * flash_rom.c: Turnning on Flash Write Enable for SiS 630/950 M/Bs,
+ *              use this program before loading DoC drivers.
+ *
+ *
+ * Copyright 2000 Silicon Integrated System Corporation
+ *
+ *	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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * Reference:
+ *	1. SiS 630 Specification
+ *	2. SiS 950 Specification
+ *
+ * $Id$
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/io.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int main()
+{
+	char b;
+
+	/* get io privilege access PCI configuration space */
+	if (iopl(3) != 0) {
+		perror("Can not set io priviliage");
+		exit(1);
+	}
+
+	/* Enable 0xFFF8000~0xFFFF0000 decoding on SiS 540/630 */
+	outl(0x80000840, 0x0cf8);
+	b = inb(0x0cfc) | 0x0b;
+	outb(b, 0xcfc);
+	/* Flash write enable on SiS 540/630 */
+	outl(0x80000845, 0x0cf8);
+	b = inb(0x0cfd) | 0x40;
+	outb(b, 0xcfd);
+
+	/* The same thing on SiS 950 SuperIO side */
+	outb(0x87, 0x2e);
+	outb(0x01, 0x2e);
+	outb(0x55, 0x2e);
+	outb(0x55, 0x2e);
+
+	if (inb(0x2f) != 0x87) {
+		printf("Can not access SiS 950\n");
+		return -1;
+	}
+
+	outb(0x24, 0x2e);
+	b = inb(0x2f) | 0xfc;
+	outb(0x24, 0x2e);
+	outb(b, 0x2f);
+
+	outb(0x02, 0x2e);
+	outb(0x02, 0x2f);
+
+	return(0);
+}
diff --git a/util/flash_and_burn/flash_rom.c b/util/flash_and_burn/flash_rom.c
new file mode 100644
index 0000000000..a13d48bb51
--- /dev/null
+++ b/util/flash_and_burn/flash_rom.c
@@ -0,0 +1,543 @@
+/*
+ * flash_rom.c: Flash programming utility for SiS 630/950 M/Bs
+ *
+ *
+ * Copyright 2000 Silicon Integrated System Corporation
+ *
+ *	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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * Reference:
+ *	1. SiS 630 Specification
+ *	2. SiS 950 Specification
+ *
+ * $Id$
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/io.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <pci/pci.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "flash.h"
+#include "jedec.h"
+#include "m29f400bt.h"
+#include "82802ab.h"
+#include "msys_doc.h"
+#include "am29f040b.h"
+#include "sst28sf040.h"
+#include "w49f002u.h"
+#include "sst39sf020.h"
+#include "mx29f002.h"
+
+struct flashchip flashchips[] = {
+    {"Am29F040B",   AMD_ID,     AM_29F040B,   NULL, 512, 64*1024,
+     probe_29f040b, erase_29f040b, write_29f040b, NULL},
+    {"At29C040A",   ATMEL_ID,   AT_29C040A,   NULL, 512, 256,
+     probe_jedec,   erase_jedec,   write_jedec, NULL},
+    {"Mx29f002",    MX_ID,      MX_29F002,    NULL, 256, 64*1024,
+     probe_29f002,  erase_29f002,  write_29f002, NULL},
+    {"SST29EE020A", SST_ID,     SST_29EE020A, NULL, 256, 128,
+     probe_jedec,   erase_jedec,   write_jedec, NULL},
+    {"SST28SF040A", SST_ID,     SST_28SF040,  NULL, 512, 256,
+     probe_28sf040, erase_28sf040, write_28sf040, NULL},
+    {"SST39SF020A", SST_ID,     SST_39SF020,  NULL, 256, 4096,
+     probe_39sf020, erase_39sf020, write_39sf020, NULL},
+    {"SST39VF020",  SST_ID,     SST_39VF020,  NULL, 256, 4096,
+     probe_39sf020, erase_39sf020, write_39sf020, NULL},
+    {"W29C011",    WINBOND_ID, W_29C011,    NULL, 128, 128,
+     probe_jedec,   erase_jedec,   write_jedec, NULL},
+    {"W29C020C",    WINBOND_ID, W_29C020C,    NULL, 256, 128,
+     probe_jedec,   erase_jedec,   write_jedec, NULL},
+    {"W49F002U",    WINBOND_ID, W_49F002U,    NULL, 256, 128,
+     probe_49f002,   erase_49f002,   write_49f002, NULL},
+    {"M29F400BT",   ST_ID, ST_M29F400BT ,    NULL, 512, 64*1024,
+     probe_m29f400bt,   erase_m29f400bt,   write_linuxbios_m29f400bt, NULL},
+    {"82802ab",   137, 173 ,    NULL, 512, 64*1024,
+     probe_82802ab,   erase_82802ab,   write_82802ab, NULL},
+    {"82802ac",   137, 172 ,    NULL, 1024, 64*1024,
+     probe_82802ab,   erase_82802ab,   write_82802ab, NULL},
+    {"MD-2802 (M-Systems DiskOnChip Millennium Module)",
+     MSYSTEMS_ID, MSYSTEMS_MD2802,
+     NULL, 8, 8*1024,
+     probe_md2802, erase_md2802, write_md2802, read_md2802},
+    {NULL,}
+};
+
+char *chip_to_probe = NULL;
+
+int enable_flash_sis630 (struct pci_dev *dev, char *name)
+{
+    char b;
+
+    /* get io privilege access PCI configuration space */
+    if (iopl(3) != 0) {
+    	perror("Can not set io priviliage");
+        exit(1);
+    }
+
+    /* Enable 0xFFF8000~0xFFFF0000 decoding on SiS 540/630 */
+    outl(0x80000840, 0x0cf8);
+    b = inb(0x0cfc) | 0x0b;
+    outb(b, 0xcfc);
+    /* Flash write enable on SiS 540/630 */
+    outl(0x80000845, 0x0cf8);
+    b = inb(0x0cfd) | 0x40;
+    outb(b, 0xcfd);
+
+    /* The same thing on SiS 950 SuperIO side */
+    outb(0x87, 0x2e);
+    outb(0x01, 0x2e);
+    outb(0x55, 0x2e);
+    outb(0x55, 0x2e);
+
+    if (inb(0x2f) != 0x87) {
+	outb(0x87, 0x4e);
+    	outb(0x01, 0x4e);
+    	outb(0x55, 0x4e);
+    	outb(0xaa, 0x4e);
+	if (inb(0x4f) != 0x87) {
+	    printf("Can not access SiS 950\n");
+	    return -1;
+	}
+	outb(0x24, 0x4e);
+	b = inb(0x4f) | 0xfc;
+	outb(0x24, 0x4e);
+	outb(b, 0x4f);
+	outb(0x02, 0x4e);
+	outb(0x02, 0x4f);	
+    }
+
+    outb(0x24, 0x2e);
+    printf("2f is %#x\n", inb(0x2f));
+    b = inb(0x2f) | 0xfc;
+    outb(0x24, 0x2e);
+    outb(b, 0x2f);
+
+    outb(0x02, 0x2e);
+    outb(0x02, 0x2f);
+
+    return 0;
+}
+
+int
+enable_flash_e7500(struct pci_dev *dev, char *name) {
+  /* register 4e.b gets or'ed with one */
+  unsigned char old, new;
+  /* if it fails, it fails. There are so many variations of broken mobos
+   * that it is hard to argue that we should quit at this point. 
+   */
+  
+  old = pci_read_byte(dev, 0x4e);
+
+  new = old | 1;
+
+  if (new == old)
+      return 0;
+
+  pci_write_byte(dev, 0x4e, new);
+
+  if (pci_read_byte(dev, 0x4e) != new) {
+    printf("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n", 
+	   0x4e, new, name);
+    return -1;
+  }
+  return 0;
+}
+
+int
+enable_flash_vt8235(struct pci_dev *dev, char *name) {
+  unsigned char old, new, val;
+  unsigned int base;
+  int ok;
+  
+  /* get io privilege access PCI configuration space */
+  if (iopl(3) != 0) {
+      perror("Can not set io priviliage");
+      exit(1);
+  }
+
+  old = pci_read_byte(dev, 0x40);
+
+  new = old | 0x10;
+
+  if (new == old)
+      return 0;
+
+  ok = pci_write_byte(dev, 0x40, new);
+  if (ok != 0) {
+    printf("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n", 
+	   old, new, name);
+  }
+
+  /* enable GPIO15 which is connected to write protect. */
+  base = ((pci_read_byte(dev, 0x88) & 0x80) | pci_read_byte(dev, 0x89) << 8);
+  val = inb(base + 0x4d);
+  val |= 0x80;
+  outb(val, base + 0x4d);
+
+  if (ok != 0) {
+    return -1;
+  } else {
+    return 0;
+  }
+}
+
+int
+enable_flash_vt8231(struct pci_dev *dev, char *name) {
+  unsigned char val;
+  
+  val = pci_read_byte(dev, 0x40);
+  val |= 0x10;
+  pci_write_byte(dev, 0x40, val);
+
+  if (pci_read_byte(dev, 0x40) != val) {
+    printf("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n", 
+	   0x40, val, name);
+    return -1;
+  }
+  return 0;
+}
+
+int
+enable_flash_cs5530(struct pci_dev *dev, char *name) {
+  unsigned char new;
+  
+  pci_write_byte(dev, 0x52, 0xee);
+
+  new = pci_read_byte(dev, 0x52);
+
+  if (new != 0xee) {
+    printf("tried to set register 0x%x to 0x%x on %s failed (WARNING ONLY)\n", 
+	   0x52, new, name);
+    return -1;
+  }
+  return 0;
+}
+
+int
+enable_flash_sc1100(struct pci_dev *dev, char *name) {
+  unsigned char new;
+  
+  pci_write_byte(dev, 0x52, 0xee);
+
+  new = pci_read_byte(dev, 0x52);
+
+  if (new != 0xee) {
+    printf("tried to set register 0x%x to 0x%x on %s failed (WARNING ONLY)\n", 
+	   0x52, new, name);
+    return -1;
+  }
+  return 0;
+}
+
+int
+enable_flash_sis5595(struct pci_dev *dev, char *name) {
+  unsigned char new, newer;
+  
+  new = pci_read_byte(dev, 0x45);
+
+  /* clear bit 5 */
+  new &= (~ 0x20);
+  /* set bit 2 */
+  new |= 0x4;
+
+  pci_write_byte(dev, 0x45, new);
+
+  newer = pci_read_byte(dev, 0x45);
+  if (newer != new) {
+    printf("tried to set register 0x%x to 0x%x on %s failed (WARNING ONLY)\n", 
+	   0x45, new, name);
+    printf("Stuck at 0x%x\n", newer);
+    return -1;
+  }
+  return 0;
+}
+
+struct flashchip * probe_flash(struct flashchip * flash)
+{
+    int fd_mem;
+    volatile char * bios;
+    unsigned long size;
+
+    if ((fd_mem = open("/dev/mem", O_RDWR)) < 0) {
+	perror("Can not open /dev/mem");
+	exit(1);
+    }
+
+    while (flash->name != NULL) {
+	if (chip_to_probe && strcmp(flash->name, chip_to_probe) != 0) {
+	    flash++;
+	    continue;
+	}
+	printf("Trying %s, %d KB\n", flash->name, flash->total_size);
+	size = flash->total_size * 1024;
+/* BUG? what happens if getpagesize() > size!?
+   -> ``Error MMAP /dev/mem: Invalid argument'' NIKI */
+	if(getpagesize() > size)
+	{
+		size = getpagesize();
+		printf("%s: warning: size: %d -> %ld\n", __FUNCTION__,
+	 		flash->total_size * 1024, (unsigned long)size);
+	}
+	bios = mmap (0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
+		     fd_mem, (off_t) (0 - size));
+	if (bios == MAP_FAILED) {
+	    perror("Error MMAP /dev/mem");
+	    exit(1);
+	}
+	flash->virt_addr = bios;
+        flash->fd_mem = fd_mem;
+
+	if (flash->probe(flash) == 1) {
+	    printf ("%s found at physical address: 0x%lx\n",
+		    flash->name, (0 - size));
+	    return flash;
+	}
+	munmap ((void *) bios, size);
+	flash++;
+    }
+    return NULL;
+}
+
+int verify_flash (struct flashchip * flash, char * buf, int verbose)
+{
+    int i = 0;
+    int total_size = flash->total_size *1024;
+    volatile char * bios = flash->virt_addr;
+
+    printf("Verifying address: ");
+    while (i++ < total_size) {
+	if (verbose) 
+		printf("0x%08x", i);
+	if (*(bios+i) != *(buf+i)) {
+		printf("FAILED\n");
+	    return 0;
+	}
+	if (verbose) 
+		printf("\b\b\b\b\b\b\b\b\b\b");
+    }
+    if (verbose)
+    	printf("\n");
+    else
+	printf("VERIFIED\n");
+    return 1;
+}
+
+// count to a billion. Time it. If it's < 1 sec, count to 10B, etc.
+
+unsigned long micro = 1;
+
+void 
+myusec_calibrate_delay()
+{
+        int count = 1000;
+	unsigned long timeusec;
+	struct timeval start, end;
+	int ok = 0;
+	void myusec_delay(int time);
+
+	printf("Setting up microsecond timing loop\n");
+	while (! ok) {
+		//fprintf(stderr, "Try %d\n", count);
+		gettimeofday(&start, 0);
+                myusec_delay(count);
+		gettimeofday(&end, 0);
+		timeusec = 1000000 * (end.tv_sec - start.tv_sec ) + 
+				(end.tv_usec - start.tv_usec);
+		//fprintf(stderr, "timeusec is %d\n", timeusec);
+		count *= 2;
+		if (timeusec < 1000000/4)
+			continue;
+		ok = 1;
+	}
+
+	// compute one microsecond. That will be count / time
+	micro = count / timeusec;
+
+	fprintf(stderr, "%ldM loops per second\n", (unsigned long)micro);
+
+
+}
+
+void
+myusec_delay(int time)
+{
+  volatile unsigned long i;
+  for(i = 0; i < time * micro; i++)
+	;
+}
+
+typedef struct penable {
+  unsigned short vendor, device; 
+  char *name;
+  int (*doit)(struct pci_dev *dev, char *name);
+} FLASH_ENABLE;
+
+FLASH_ENABLE enables[] = {
+
+  {0x1, 0x1, "sis630 -- what's the ID?", enable_flash_sis630},
+  {0x8086, 0x2480, "E7500", enable_flash_e7500},
+  {0x1106, 0x8231, "VT8231", enable_flash_vt8231},
+  {0x1106, 0x3177, "VT8235", enable_flash_vt8235},
+  {0x1078, 0x0100, "CS5530", enable_flash_cs5530},
+  {0x100b, 0x0510, "SC1100", enable_flash_sc1100},
+  {0x1039, 0x8, "SIS5595", enable_flash_sis5595},
+};
+  
+int
+enable_flash_write() {
+  int i;
+  struct pci_access *pacc;
+  struct pci_dev *dev = 0;
+  FLASH_ENABLE *enable = 0;
+
+  pacc = pci_alloc();           /* Get the pci_access structure */
+  /* Set all options you want -- here we stick with the defaults */
+  pci_init(pacc);               /* Initialize the PCI library */
+  pci_scan_bus(pacc);           /* We want to get the list of devices */
+
+  /* now let's try to find the chipset we have ... */
+  for(i = 0; i < sizeof(enables)/sizeof(enables[0]) && (! dev); i++) {
+    struct pci_filter f;
+    struct pci_dev *z;
+    /* the first param is unused. */
+    pci_filter_init((struct pci_access *) 0, &f);
+    f.vendor = enables[i].vendor;
+    f.device = enables[i].device;
+    for(z=pacc->devices; z; z=z->next)
+      if (pci_filter_match(&f, z)) {
+	enable = &enables[i];
+	dev = z;
+      }
+  }
+
+  /* now do the deed. */
+  if (enable) {
+      printf("Enabling flash write on %s...", enable->name);
+      if (enable->doit(dev, enable->name) == 0)
+          printf("OK\n");
+  }
+  return 0;
+}
+
+void usage(const char *name)
+{
+    printf("usage: %s [-rwv] [-c chipname][file]\n", name);
+    printf("-r: read flash and save into file\n"
+        "-w: write file into flash (default when file is specified)\n"
+        "-v: verify flash against file\n"
+        "-c: probe only for specified flash chip\n"
+        " If no file is specified, then all that happens\n"
+        " is that flash info is dumped\n");
+    exit(1);
+}
+
+int
+main (int argc, char * argv[])
+{
+    char * buf;
+    unsigned long size;
+    FILE * image;
+    struct flashchip * flash;
+    int opt;
+    int read_it = 0, write_it = 0, verify_it = 0;
+    char *filename = NULL;
+
+    setbuf(stdout, NULL);
+
+    while ((opt = getopt(argc, argv, "rwvc:")) != EOF) {
+        switch (opt) {
+        case 'r':
+            read_it = 1;
+            break;
+        case 'w':
+            write_it = 1;
+            break;
+        case 'v':
+            verify_it = 1;
+            break;
+        case 'c':
+            chip_to_probe = strdup(optarg);
+            break;
+        default:
+            usage(argv[0]);
+            break;
+        }
+    }
+    if (read_it && write_it) {
+        printf("-r and -w are mutually exclusive\n");
+        usage(argv[0]);
+    }
+
+    if (optind < argc)
+        filename = argv[optind++];
+
+    printf("Calibrating timer since microsleep sucks ... takes a second\n");
+    myusec_calibrate_delay();
+    printf("OK, calibrated, now do the deed\n");
+
+    /* try to enable it. Failure IS an option, since not all motherboards
+     * really need this to be done, etc., etc. It sucks.
+     */
+    (void) enable_flash_write();
+    
+    if ((flash = probe_flash (flashchips)) == NULL) {
+	printf("EEPROM not found\n");
+	exit(1);
+    }
+
+    printf("Part is %s\n", flash->name);
+    if (!filename){
+	printf("OK, only ENABLING flash write, but NOT FLASHING\n");
+	return 0;
+    }
+    size = flash->total_size * 1024;
+    buf = (char *) calloc (size, sizeof(char));
+
+    if (read_it) {
+        if ((image = fopen (filename, "w")) == NULL) {
+            perror(filename);
+            exit(1);
+        }
+        printf("Reading Flash...");
+	if(flash->read == NULL)
+		memcpy(buf, (const char *) flash->virt_addr, size);
+	else
+		flash->read (flash, buf);
+        fwrite(buf, sizeof(char), size, image);
+        fclose(image);
+        printf("done\n");
+    } else {
+        if ((image = fopen (filename, "r")) == NULL) {
+            perror(filename);
+            exit(1);
+        }
+        fread (buf, sizeof(char), size, image);
+        fclose(image);
+    }
+
+    if (write_it || (!read_it && !verify_it))
+        flash->write (flash, buf);
+    if (verify_it)
+        verify_flash (flash, buf, /* verbose = */ 0);
+    return 0;
+}
diff --git a/util/flash_and_burn/jedec.c b/util/flash_and_burn/jedec.c
new file mode 100644
index 0000000000..bb4a874ab1
--- /dev/null
+++ b/util/flash_and_burn/jedec.c
@@ -0,0 +1,98 @@
+/*
+ * jedec.c: driver for programming JEDEC standard flash parts
+ *
+ *
+ * Copyright 2000 Silicon Integrated System Corporation
+ *
+ *	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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * Reference:
+ *
+ * $Id$
+ */
+
+#include <stdio.h>
+#include "flash.h"
+#include "jedec.h"
+
+int probe_jedec (struct flashchip * flash)
+{
+	volatile char * bios = flash->virt_addr;
+	unsigned char  id1, id2;
+
+	*(volatile char *) (bios + 0x5555) = 0xAA;
+	*(volatile char *) (bios + 0x2AAA) = 0x55;
+	*(volatile char *) (bios + 0x5555) = 0x90;
+
+	myusec_delay(10);
+
+	id1 = *(volatile unsigned char *) bios;
+	id2 = *(volatile unsigned char *) (bios + 0x01);
+
+	*(volatile char *) (bios + 0x5555) = 0xAA;
+	*(volatile char *) (bios + 0x2AAA) = 0x55;
+	*(volatile char *) (bios + 0x5555) = 0xF0;
+
+	myusec_delay(10);
+
+	printf("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, id1, id2);
+	if (id1 == flash->manufacture_id && id2 == flash->model_id)
+		return 1;
+
+	return 0;
+}
+
+int erase_jedec (struct flashchip * flash)
+{
+	volatile char * bios = flash->virt_addr;
+
+	*(volatile char *) (bios + 0x5555) = 0xAA;
+	*(volatile char *) (bios + 0x2AAA) = 0x55;
+	*(volatile char *) (bios + 0x5555) = 0x80;
+
+	*(volatile char *) (bios + 0x5555) = 0xAA;
+	*(volatile char *) (bios + 0x2AAA) = 0x55;
+	*(volatile char *) (bios + 0x5555) = 0x10;
+
+	myusec_delay(10);
+	toggle_ready_jedec(bios);
+
+	return(0);
+}
+
+int write_jedec (struct flashchip * flash, unsigned char * buf)
+{
+	int i;
+	int total_size = flash->total_size *1024, page_size = flash->page_size;
+	volatile unsigned char * bios = flash->virt_addr;
+
+	erase_jedec (flash);
+	if (*bios != (unsigned char ) 0xff) {
+		printf("ERASE FAILED\n");
+		return -1;
+	}
+	printf ("Programming Page: ");
+	for (i = 0; i < total_size/page_size; i++) {
+		printf ("%04d at address: 0x%08x", i, i * page_size);
+		write_page_jedec(bios, buf + i * page_size, bios + i * page_size,
+				 page_size);
+		printf ("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
+	}
+	printf("\n");
+	protect_jedec (bios);
+
+	return(0);
+}
diff --git a/util/flash_and_burn/jedec.h b/util/flash_and_burn/jedec.h
new file mode 100644
index 0000000000..40261fd4fd
--- /dev/null
+++ b/util/flash_and_burn/jedec.h
@@ -0,0 +1,66 @@
+#ifndef __JEDEC_H__
+#define __JEDEC_H__ 1
+
+extern int probe_jedec (struct flashchip * flash);
+extern int erase_jedec (struct flashchip * flash);
+extern int write_jedec (struct flashchip * flash, unsigned char * buf);
+
+extern __inline__ void toggle_ready_jedec (volatile char * dst)
+{
+	unsigned int i = 0;
+	char tmp1, tmp2;
+
+	tmp1 = *dst & 0x40;
+
+	while (i++ < 0xFFFFFF) {
+		tmp2 = *dst & 0x40;
+		if (tmp1 == tmp2) {
+			break;
+		}
+		tmp1 = tmp2;
+	}
+}
+
+extern __inline__ void data_polling_jedec (volatile char * dst, char data)
+{
+	unsigned int i = 0;
+	char tmp;
+
+	data &= 0x80;
+
+	while (i++ < 0xFFFFFF) {
+		tmp = *dst & 0x80;
+		if (tmp == data) {
+			break;
+		}
+	}
+}
+
+extern __inline__ void protect_jedec (volatile char * bios)
+{
+	*(volatile char *) (bios + 0x5555) = 0xAA;
+	*(volatile char *) (bios + 0x2AAA) = 0x55;
+	*(volatile char *) (bios + 0x5555) = 0xA0;
+
+	usleep(200);
+}
+
+extern __inline__ void write_page_jedec (volatile char * bios, char * src, volatile char * dst,
+					 int page_size)
+{
+	int i;
+
+	*(volatile char *) (bios + 0x5555) = 0xAA;
+	*(volatile char *) (bios + 0x2AAA) = 0x55;
+	*(volatile char *) (bios + 0x5555) = 0xA0;
+
+	for (i = 0; i < page_size; i++) {
+		/* transfer data from source to destination */
+		*dst++ = *src++;
+	}
+
+	usleep(100);
+	toggle_ready_jedec(dst-1);
+}
+
+#endif /* !__JEDEC_H__ */
diff --git a/util/flash_and_burn/m29f400bt.c b/util/flash_and_burn/m29f400bt.c
new file mode 100644
index 0000000000..a19c8cd6ca
--- /dev/null
+++ b/util/flash_and_burn/m29f400bt.c
@@ -0,0 +1,189 @@
+/*
+ * m29f400bt.c: driver for programming JEDEC standard flash parts
+ *
+ *
+ * Copyright 2000 Silicon Integrated System Corporation
+ *
+ *	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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * Reference:
+ *
+ * $Id$
+ */
+
+#include "flash.h"
+#include "m29f400bt.h"
+
+int probe_m29f400bt (struct flashchip * flash)
+{
+	volatile char * bios = flash->virt_addr;
+	unsigned char  id1, id2;
+
+	*(volatile char *) (bios + 0xAAA) = 0xAA;
+	*(volatile char *) (bios + 0x555) = 0x55;
+	*(volatile char *) (bios + 0xAAA) = 0x90;
+
+	myusec_delay(10);
+
+	id1 = *(volatile unsigned char *) bios;
+	id2 = *(volatile unsigned char *) (bios + 0x02);
+
+	*(volatile char *) (bios + 0xAAA) = 0xAA;
+	*(volatile char *) (bios + 0x555) = 0x55;
+	*(volatile char *) (bios + 0xAAA) = 0xF0;
+
+	myusec_delay(10);
+
+	printf("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, id1, id2);	
+
+
+	if (id1 == flash->manufacture_id && id2 == flash->model_id)
+		return 1;
+
+	return 0;
+}
+
+int erase_m29f400bt (struct flashchip * flash)
+{
+	volatile char * bios = flash->virt_addr;
+
+	*(volatile char *) (bios + 0xAAA) = 0xAA;
+	*(volatile char *) (bios + 0x555) = 0x55;
+	*(volatile char *) (bios + 0xAAA) = 0x80;
+
+	*(volatile char *) (bios + 0xAAA) = 0xAA;
+	*(volatile char *) (bios + 0x555) = 0x55;
+	*(volatile char *) (bios + 0xAAA) = 0x10;
+
+	myusec_delay(10);
+	toggle_ready_m29f400bt(bios);
+
+	return(0);
+}
+
+int block_erase_m29f400bt (volatile char * bios ,volatile char * dst)
+{
+
+	*(volatile char *) (bios + 0xAAA) = 0xAA;
+	*(volatile char *) (bios + 0x555) = 0x55;
+	*(volatile char *) (bios + 0xAAA) = 0x80;
+
+	*(volatile char *) (bios + 0xAAA) = 0xAA;
+	*(volatile char *) (bios + 0x555) = 0x55;
+	//*(volatile char *) (bios + 0xAAA) = 0x10;
+	*dst  = 0x30;
+
+	myusec_delay(10);
+	toggle_ready_m29f400bt(bios);
+
+	return(0);
+}
+
+int write_m29f400bt (struct flashchip * flash, unsigned char * buf)
+{
+	int i;
+	int total_size = flash->total_size *1024, page_size = flash->page_size;
+	volatile char * bios = flash->virt_addr;
+
+	//erase_m29f400bt (flash);
+	printf ("Programming Page:\n ");
+	/*********************************
+	*Pages for M29F400BT:
+	* 16	0x7c000		0x7ffff		TOP
+	*  8 	0x7a000		0x7bfff
+	*  8 	0x78000		0x79fff
+	* 32	0x70000		0x77fff
+	* 64	0x60000		0x6ffff
+	* 64	0x50000		0x5ffff
+	* 64	0x40000		0x4ffff
+	*---------------------------------
+	* 64	0x30000		0x3ffff
+	* 64	0x20000		0x2ffff
+	* 64	0x10000		0x1ffff
+	* 64	0x00000		0x0ffff		BOTTOM
+	*********************************/
+	printf("total_size/page_size = %d\n",total_size/page_size);
+	for (i = 0; i < (total_size/page_size)-1; i++) {
+		printf("%04d at address: 0x%08x\n", i, i * page_size);
+		block_erase_m29f400bt(bios, bios + i * page_size);
+		write_page_m29f400bt(bios, buf + i * page_size, bios + i * page_size,
+				 page_size);
+		printf ("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
+	}
+
+	printf("%04d at address: 0x%08x\n",7,0x70000);
+	block_erase_m29f400bt(bios , bios + 0x70000);
+	write_page_m29f400bt(bios,buf + 0x70000, bios + 0x70000, 32*1024);
+	
+	printf("%04d at address: 0x%08x\n",8,0x78000);
+	block_erase_m29f400bt(bios , bios + 0x78000);
+	write_page_m29f400bt(bios,buf + 0x78000, bios + 0x78000, 8*1024);
+	
+	printf("%04d at address: 0x%08x\n",9,0x7a000);
+	block_erase_m29f400bt(bios , bios + 0x7a000);
+	write_page_m29f400bt(bios,buf + 0x7a000, bios + 0x7a000, 8*1024);
+	
+	printf("%04d at address: 0x%08x\n",10,0x7c000);
+	block_erase_m29f400bt(bios , bios + 0x7c000);
+	write_page_m29f400bt(bios,buf + 0x7c000, bios + 0x7c000, 16*1024);
+	
+	printf("\n");
+	//protect_m29f400bt (bios);
+
+	return(0);
+}
+
+int write_linuxbios_m29f400bt (struct flashchip * flash, unsigned char * buf)
+{
+	volatile char * bios = flash->virt_addr;
+
+	printf ("Programming Page:\n ");
+	/*********************************
+	*Pages for M29F400BT:
+	* 16	0x7c000		0x7ffff		TOP
+	*  8 	0x7a000		0x7bfff
+	*  8 	0x78000		0x79fff
+	* 32	0x70000		0x77fff
+	* 64	0x60000		0x6ffff
+	* 64	0x50000		0x5ffff
+	* 64	0x40000		0x4ffff
+	*---------------------------------
+	* 64	0x30000		0x3ffff
+	* 64	0x20000		0x2ffff
+	* 64	0x10000		0x1ffff
+	* 64	0x00000		0x0ffff		BOTTOM
+	*********************************/
+	printf("%04d at address: 0x%08x\n",7,0x00000);
+	block_erase_m29f400bt(bios , bios + 0x00000);
+	write_page_m29f400bt(bios,buf + 0x00000, bios + 0x00000, 64*1024);
+	
+	printf("%04d at address: 0x%08x\n",7,0x10000);
+	block_erase_m29f400bt(bios , bios + 0x10000);
+	write_page_m29f400bt(bios,buf + 0x10000, bios + 0x10000, 64*1024);
+	
+	printf("%04d at address: 0x%08x\n",7,0x20000);
+	block_erase_m29f400bt(bios , bios + 0x20000);
+	write_page_m29f400bt(bios,buf + 0x20000, bios + 0x20000, 64*1024);
+	
+	printf("%04d at address: 0x%08x\n",7,0x30000);
+	block_erase_m29f400bt(bios , bios + 0x30000);
+	write_page_m29f400bt(bios,buf + 0x30000, bios + 0x30000, 64*1024);
+	
+	printf("\n");
+	//protect_m29f400bt (bios);
+
+	return(0);
+}
diff --git a/util/flash_and_burn/m29f400bt.h b/util/flash_and_burn/m29f400bt.h
new file mode 100644
index 0000000000..3d1799f4e2
--- /dev/null
+++ b/util/flash_and_burn/m29f400bt.h
@@ -0,0 +1,74 @@
+#ifndef __M29F400BT_H__
+#define __M29F400BT_H__ 1
+
+#include <stdio.h>
+
+extern int probe_m29f400bt (struct flashchip * flash);
+extern int erase_m29f400bt (struct flashchip * flash);
+extern int block_erase_m29f400bt (volatile char * bios, volatile char * dst);
+extern int write_m29f400bt (struct flashchip * flash, unsigned char * buf);
+extern int write_linuxbios_m29f400bt (struct flashchip * flash, unsigned char * buf);
+
+extern __inline__ void toggle_ready_m29f400bt (volatile char * dst)
+{
+	unsigned int i = 0;
+	char tmp1, tmp2;
+
+	tmp1 = *dst & 0x40;
+
+	while (i++ < 0xFFFFFF) {
+		tmp2 = *dst & 0x40;
+		if (tmp1 == tmp2) {
+			break;
+		}
+		tmp1 = tmp2;
+	}
+}
+
+extern __inline__ void data_polling_m29f400bt (volatile char * dst, unsigned char data)
+{
+	unsigned int i = 0;
+	char tmp;
+
+	data &= 0x80;
+
+	while (i++ < 0xFFFFFF) {
+		tmp = *dst & 0x80;
+		if (tmp == data) {
+			break;
+		}
+	}
+}
+
+extern __inline__ void protect_m29f400bt (volatile char * bios)
+{
+	*(volatile char *) (bios + 0xAAA) = 0xAA;
+	*(volatile char *) (bios + 0x555) = 0x55;
+	*(volatile char *) (bios + 0xAAA) = 0xA0;
+
+	usleep(200);
+}
+
+extern __inline__ void write_page_m29f400bt (volatile char * bios, char * src, volatile char * dst,
+					 int page_size)
+{
+	int i;
+	
+	for (i = 0; i < page_size; i++) {
+		*(volatile char *) (bios + 0xAAA) = 0xAA;
+		*(volatile char *) (bios + 0x555) = 0x55;
+		*(volatile char *) (bios + 0xAAA) = 0xA0;
+
+		/* transfer data from source to destination */
+		*dst = *src;
+		//*(volatile char *) (bios) = 0xF0;
+		//usleep(5);
+		toggle_ready_m29f400bt(dst);
+		printf("Value in the flash at address %p = %#x, want %#x\n",(char *)(dst-bios), *dst, *src);
+		dst++;
+		src++;
+	}
+
+}
+
+#endif /* !__M29F400BT_H__ */
diff --git a/util/flash_and_burn/msys_doc.c b/util/flash_and_burn/msys_doc.c
new file mode 100644
index 0000000000..bfa4ecae9b
--- /dev/null
+++ b/util/flash_and_burn/msys_doc.c
@@ -0,0 +1,289 @@
+/*
+ * msys_doc.c: driver for programming m-systems doc devices
+ *
+ *
+ * Copyright 2003   Niki W. Waibel <niki.waibel@gmx.net>
+ *
+ *	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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+
+#include <stdio.h>
+#include <unistd.h>
+#include "flash.h"
+#include "msys_doc.h"
+
+
+
+
+
+static int doc_wait(volatile char *bios, int timeout);
+static unsigned char doc_read_chipid(volatile char *bios);
+static unsigned char doc_read_docstatus(volatile char *bios);
+static unsigned char doc_read_cdsncontrol(volatile char *bios);
+static void doc_write_cdsncontrol(volatile char *bios, unsigned char data);
+
+
+
+
+
+int
+probe_md2802(struct flashchip * flash)
+{
+	volatile char *bios = flash->virt_addr;
+	unsigned char chipid;
+#ifndef MSYSTEMS_DOC_NO_55AA_CHECKING
+	unsigned char id_0x55, id_0xAA;
+#endif /* !MSYSTEMS_DOC_NO_55AA_CHECKING */
+	int i, toggle_a, toggle_b;
+
+	printf("%s:\n", __FUNCTION__);
+	printf("%s: *******************************\n", __FUNCTION__);
+	printf("%s: * THIS IS A PRE ALPHA VERSION *\n", __FUNCTION__);
+	printf("%s: * IN THE DEVELOPEMENT *********\n", __FUNCTION__);
+	printf("%s: * PROCESS RIGHT NOW. **********\n", __FUNCTION__);
+	printf("%s: *******************************\n", __FUNCTION__);
+	printf("%s: * IF YOU ARE NOT A DEVELOPER **\n", __FUNCTION__);
+	printf("%s: * THEN DO NOT TRY TO READ OR **\n", __FUNCTION__);
+	printf("%s: * WRITE TO THIS DEVICE ********\n", __FUNCTION__);
+	printf("%s: *******************************\n", __FUNCTION__);
+	printf("%s:\n", __FUNCTION__);
+
+	printf("%s: switching off reset mode ...\n", __FUNCTION__);
+	doc_write(0x85, bios, DOCControl);
+	doc_write(0x85, bios, DOCControl);
+	doc_read_4nop(bios);
+	if(doc_wait(bios, 5000))
+		return(-1);
+	printf("%s: switching off reset mode ... done\n", __FUNCTION__);
+	printf("%s:\n", __FUNCTION__);
+
+	printf("%s: switching off write protection ...\n", __FUNCTION__);
+	doc_write_cdsncontrol(bios, doc_read_cdsncontrol(bios)&(~0x08));
+	printf("%s: switching off write protection ... done\n", __FUNCTION__);
+	printf("%s:\n", __FUNCTION__);
+
+
+	chipid = doc_read_chipid(bios);
+#ifndef MSYSTEMS_DOC_NO_55AA_CHECKING
+	id_0x55 = doc_read(bios, IPL_0x0000);
+	id_0xAA = doc_read(bios, IPL_0x0001);
+#endif /* !MSYSTEMS_DOC_NO_55AA_CHECKING */
+	printf("%s: IPL_0x0000: 0x%02x\n", __FUNCTION__, id_0x55);
+	printf("%s: IPL_0x0001: 0x%02x\n", __FUNCTION__, id_0xAA);
+	printf("%s: IPL_0x0002: 0x%02x\n", __FUNCTION__,
+		doc_read(bios, IPL_0x0002));
+	printf("%s: IPL_0x0003: 0x%02x\n", __FUNCTION__,
+		doc_read(bios, IPL_0x0003));
+	printf("%s:\n", __FUNCTION__);
+	printf("%s: ChipID: 0x%02x\n", __FUNCTION__, chipid);
+	printf("%s: DOCStatus: 0x%02x\n", __FUNCTION__,
+		doc_read_docstatus(bios));
+	printf("%s: FloorSelect: 0x%02x\n", __FUNCTION__,
+		doc_read(bios, FloorSelect));
+	printf("%s: CDSNControl: 0x%02x\n", __FUNCTION__,
+		doc_read_cdsncontrol(bios));
+	printf("%s: CDSNDeviceSelect: 0x%02x\n", __FUNCTION__,
+		doc_read(bios, CDSNDeviceSelect));
+	printf("%s: ECCConfiguration: 0x%02x\n", __FUNCTION__,
+		doc_read(bios, ECCConfiguration));
+	printf("%s: CDSNSlowIO: 0x%02x\n", __FUNCTION__,
+		doc_read(bios, CDSNSlowIO));
+	printf("%s: ECCSyndrome0: 0x%02x\n", __FUNCTION__,
+		doc_read(bios, ECCSyndrome0));
+	printf("%s: ECCSyndrome1: 0x%02x\n", __FUNCTION__,
+		doc_read(bios, ECCSyndrome1));
+	printf("%s: ECCSyndrome2: 0x%02x\n", __FUNCTION__,
+		doc_read(bios, ECCSyndrome2));
+	printf("%s: ECCSyndrome3: 0x%02x\n", __FUNCTION__,
+		doc_read(bios, ECCSyndrome3));
+	printf("%s: ECCSyndrome4: 0x%02x\n", __FUNCTION__,
+		doc_read(bios, ECCSyndrome4));
+	printf("%s: ECCSyndrome5: 0x%02x\n", __FUNCTION__,
+		doc_read(bios, ECCSyndrome5));
+	printf("%s: AliasResolution: 0x%02x\n", __FUNCTION__,
+		doc_read(bios, AliasResolution));
+	printf("%s: ConfigurationInput: 0x%02x\n", __FUNCTION__,
+		doc_read(bios, ConfigurationInput));
+	printf("%s: ReadPipelineInitialization: 0x%02x\n", __FUNCTION__,
+		doc_read(bios, ReadPipelineInitialization));
+	printf("%s: LastDataRead: 0x%02x\n", __FUNCTION__,
+		doc_read(bios, LastDataRead));
+	printf("%s:\n", __FUNCTION__);
+
+	printf("%s: checking ECCConfiguration toggle bit\n", __FUNCTION__);
+	printf("%s:", __FUNCTION__);
+	toggle_a = toggle_b = 0;
+	for(i=0; i<10; i++)
+	{
+		unsigned char toggle = doc_toggle(bios);
+
+		printf(" 0x%02x", toggle);
+
+		if(i%2)
+			toggle_a += toggle;
+		else
+			toggle_b += toggle;
+	} /* for(i=0; i<10; i++) */
+	printf("\n%s: toggle result: %d/%d\n", __FUNCTION__, toggle_a, toggle_b);
+
+	if(chipid == flash->model_id
+		&& ((toggle_a==5 && toggle_b==0)||(toggle_a==0 && toggle_b==5))
+#ifndef MSYSTEMS_DOC_NO_55AA_CHECKING
+		&& id_0x55 == 0x55 && id_0xAA == 0xaa
+#endif /* !MSYSTEMS_DOC_NO_55AA_CHECKING */
+		)
+	{
+		return(1);
+	}
+
+	return(0);
+} /* int probe_md2802(struct flashchip *flash) */
+
+
+
+int
+read_md2802(struct flashchip *flash, unsigned char *buf)
+{
+	
+	return(0);
+} /* int read_md2802(struct flashchip *flash, unsigned char *buf) */
+
+
+
+int
+erase_md2802(struct flashchip *flash)
+{
+	volatile char *bios = flash->virt_addr;
+
+	return(1);
+	*(volatile char *)(bios + 0x5555) = 0xAA;
+	*(volatile char *)(bios + 0x2AAA) = 0x55;
+	*(volatile char *)(bios + 0x5555) = 0x80;
+
+	*(volatile char *)(bios + 0x5555) = 0xAA;
+	*(volatile char *)(bios + 0x2AAA) = 0x55;
+	*(volatile char *)(bios + 0x5555) = 0x10;
+} /* int erase_md2802(struct flashchip *flash) */
+
+
+
+int
+write_md2802(struct flashchip *flash, unsigned char *buf)
+{
+	int i;
+	int total_size = flash->total_size *1024, page_size = flash->page_size;
+	volatile unsigned char * bios = flash->virt_addr;
+
+	return(1);
+	erase_md2802 (flash);
+	if (*bios != (unsigned char ) 0xff) {
+		printf("ERASE FAILED\n");
+		return -1;
+	}
+	printf ("Programming Page: ");
+	for (i = 0; i < total_size/page_size; i++) {
+		printf ("%04d at address: 0x%08x", i, i * page_size);
+		//write_page_md2802(bios, buf + i * page_size, bios + i * page_size, page_size);
+		printf ("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
+	}
+	printf("\n");
+	//protect_md2802(bios);
+
+} /* int write_md2802(struct flashchip *flash, char *buf) */
+
+
+
+
+
+
+/*
+	wait timeout msec for doc to become ready
+	return:
+		0: ready
+		-1: timeout expired
+*/
+static int
+doc_wait(volatile char *bios, int timeout)
+{
+	int i = 20;
+
+	doc_read_4nop(bios);
+
+	while(_doc_busy(bios) && (i != 0))
+	{
+		usleep(timeout*1000/20);
+		i--;
+	}
+
+	doc_read_2nop(bios);
+
+	if(_doc_busy(bios))
+	{
+		doc_read_2nop(bios);
+		return(-1);
+	}
+
+	return(0);
+} /* static int doc_wait(volatile char *bios, int timeout) */
+
+
+
+static unsigned char
+doc_read_docstatus(volatile char *bios)
+{
+	doc_read(bios, CDSNSlowIO);
+	doc_read_2nop(bios);
+
+	return(doc_read(bios, _DOCStatus));
+} /* static unsigned char doc_read_docstatus(volatile char *bios) */
+
+
+
+static unsigned char
+doc_read_chipid(volatile char *bios)
+{
+	doc_read(bios, CDSNSlowIO);
+	doc_read_2nop(bios);
+
+	return(doc_read(bios, _ChipID));
+} /* static unsigned char doc_read_chipid(volatile char *bios) */
+
+
+
+static unsigned char
+doc_read_cdsncontrol(volatile char *bios)
+{
+	unsigned char value;
+
+	/* the delays might be necessary when reading the busy bit,
+		but because a read to this reg reads the busy bit
+		anyway we better do this delays... */
+	doc_read_4nop(bios);
+	value = doc_read(bios, _CDSNControl);
+	doc_read_2nop(bios);
+
+	return(value);
+} /* static unsigned char doc_read_chipid(volatile char *bios) */
+
+
+
+static void
+doc_write_cdsncontrol(volatile char *bios, unsigned char data)
+{
+	doc_write(data, bios, _CDSNControl);
+	doc_read_4nop(bios);
+} /* static void doc_write_chipid(volatile char *bios, unsigned char data) */
diff --git a/util/flash_and_burn/msys_doc.h b/util/flash_and_burn/msys_doc.h
new file mode 100644
index 0000000000..9ea523cc4f
--- /dev/null
+++ b/util/flash_and_burn/msys_doc.h
@@ -0,0 +1,110 @@
+/*
+ * msys_doc.h: header file of msys_doc.c
+ *
+ *
+ * Copyright 2003   Niki W. Waibel <niki.waibel@gmx.net>
+ *
+ *	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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+
+#ifndef __MSYS_DOC_H__
+#define __MSYS_DOC_H__ 1
+
+
+
+/* idea from include/linux/mtd/doc2000.h */
+/* registers with __ should not be read/written directly */
+#define MSYSTEMS_DOC_R__ChipID                    0x1000
+#define MSYSTEMS_DOC_R__DOCStatus                 0x1001
+#define MSYSTEMS_DOC_W_DOCControl                 0x1002
+#define MSYSTEMS_DOC_R_FloorSelect                0x1003
+#define MSYSTEMS_DOC_W_FloorSelect                0x1003
+#define MSYSTEMS_DOC_R__CDSNControl               0x1004
+#define MSYSTEMS_DOC_W__CDSNControl               0x1004
+#define MSYSTEMS_DOC_R_CDSNDeviceSelect           0x1005
+#define MSYSTEMS_DOC_W_CDSNDeviceSelect           0x1005
+#define MSYSTEMS_DOC_R_ECCConfiguration           0x1006
+#define MSYSTEMS_DOC_W_ECCConfiguration           0x1006
+#define MSYSTEMS_DOC_R_CDSNSlowIO                 0x100d
+#define MSYSTEMS_DOC_W_CDSNSlowIO                 0x100d
+#define MSYSTEMS_DOC_R_ECCSyndrome0               0x1010
+#define MSYSTEMS_DOC_R_ECCSyndrome1               0x1011
+#define MSYSTEMS_DOC_R_ECCSyndrome2               0x1012
+#define MSYSTEMS_DOC_R_ECCSyndrome3               0x1013
+#define MSYSTEMS_DOC_R_ECCSyndrome4               0x1014
+#define MSYSTEMS_DOC_R_ECCSyndrome5               0x1015
+#define MSYSTEMS_DOC_R_AliasResolution            0x101b
+#define MSYSTEMS_DOC_W_AliasResolution            0x101b
+#define MSYSTEMS_DOC_R_ConfigurationInput         0x101c
+#define MSYSTEMS_DOC_W_ConfigurationInput         0x101c
+#define MSYSTEMS_DOC_R_ReadPipelineInitialization 0x101d
+#define MSYSTEMS_DOC_W_WritePipelineTermination   0x101e
+#define MSYSTEMS_DOC_R_LastDataRead               0x101f
+#define MSYSTEMS_DOC_W_LastDataRead               0x101f
+#define MSYSTEMS_DOC_R_NOP                        0x1020
+#define MSYSTEMS_DOC_W_NOP                        0x1020
+
+#define MSYSTEMS_DOC_R_IPL_0x0000                 0x0000
+#define MSYSTEMS_DOC_R_IPL_0x0001                 0x0001
+#define MSYSTEMS_DOC_R_IPL_0x0002                 0x0002
+#define MSYSTEMS_DOC_R_IPL_0x0003                 0x0003
+
+#define MSYSTEMS_DOC_R_CDSNIO_BASE                0x0800
+#define MSYSTEMS_DOC_W_CDSNIO_BASE                0x0800
+
+
+
+#define doc_read(base,reg) \
+	(*(volatile unsigned char *)(base + MSYSTEMS_DOC_R_##reg))
+
+#define doc_read_nop(base) \
+	doc_read(base, NOP)
+
+#define doc_read_2nop(base) \
+	{ doc_read_nop(base); doc_read_nop(base); }
+
+#define doc_read_4nop(base) \
+	{ doc_read_2nop(base); doc_read_2nop(base); }
+
+#define doc_write(data,base,reg) \
+	(*(volatile unsigned char *)(base + MSYSTEMS_DOC_W_##reg)) = data
+
+#define doc_write_nop(base) \
+	doc_write(0, base, NOP)
+
+#define doc_write_2nop(base) \
+	{ doc_write_nop(base); doc_write_nop(base); }
+
+#define doc_write_4nop(base) \
+	{ doc_write_2nop(base); doc_write_2nop(base); }
+
+#define _doc_busy(base)   /* 0: ready; -1: busy */ \
+	( ((doc_read(base, _CDSNControl) & 0x80) >> 7) - 1)
+
+#define doc_toggle(base)   /* 0, 1, 0, 1, 0, 1, ... if a doc is present */ \
+	( (doc_read(base, ECCConfiguration) & 0x04) >> 2 )
+
+
+
+extern int probe_md2802(struct flashchip *flash);
+extern int read_md2802(struct flashchip *flash, unsigned char *buf);
+extern int erase_md2802(struct flashchip *flash);
+extern int write_md2802(struct flashchip *flash, unsigned char *buf);
+
+
+
+#endif /* !__MSYS_DOC_H__ */
diff --git a/util/flash_and_burn/mx29f002.c b/util/flash_and_burn/mx29f002.c
new file mode 100644
index 0000000000..4c22cd43f3
--- /dev/null
+++ b/util/flash_and_burn/mx29f002.c
@@ -0,0 +1,119 @@
+/*
+ * mx29f002.c: driver for MXIC MX29F002 flash models
+ *
+ *
+ * Copyright 2000 Silicon Integrated System Corporation
+ *
+ *	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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * Reference:
+ *	MX29F002/002N data sheet
+ *
+ * $Id$
+ */
+
+#include <stdio.h>
+#include "flash.h"
+#include "jedec.h"
+#include "mx29f002.h"
+
+int probe_29f002 (struct flashchip * flash)
+{
+	volatile char * bios = flash->virt_addr;
+	unsigned char id1, id2;
+
+	*(bios + 0x5555) = 0xAA;
+	*(bios + 0x2AAA) = 0x55;
+	*(bios + 0x5555) = 0x90;
+    
+	id1 = *(volatile unsigned char *) bios;
+	id2 = *(volatile unsigned char *) (bios + 0x01);
+ 
+	*bios = 0xF0;
+
+	myusec_delay(10);
+
+	printf("%s: id1 %d, id2 %d\n", __FUNCTION__, id1, id2);
+	if (id1 == flash->manufacture_id && id2 == flash->model_id)
+		return 1;
+
+	return 0;
+}
+
+int erase_29f002 (struct flashchip * flash)
+{
+	volatile char * bios = flash->virt_addr;
+
+	*(bios + 0x555) = 0xF0;
+	*(bios + 0x555) = 0xAA;
+	*(bios + 0x2AA) = 0x55;
+	*(bios + 0x555) = 0x80;
+	*(bios + 0x555) = 0xAA;
+	*(bios + 0x2AA) = 0x55;
+	*(bios + 0x555) = 0x10;
+
+	myusec_delay(100);
+	toggle_ready_jedec(bios);
+
+	//   while ((*bios & 0x40) != 0x40)
+	//;
+
+#if 0
+	toggle_ready_jedec(bios);
+	*(bios + 0x0ffff) = 0x30;
+	*(bios + 0x1ffff) = 0x30;
+	*(bios + 0x2ffff) = 0x30;
+	*(bios + 0x37fff) = 0x30;
+	*(bios + 0x39fff) = 0x30;
+	*(bios + 0x3bfff) = 0x30;
+#endif
+
+	return(0);
+}
+
+int write_29f002 (struct flashchip * flash, unsigned char * buf)
+{
+    int i;
+    int total_size = flash->total_size * 1024;
+    volatile char * bios = flash->virt_addr;
+    volatile char * dst = bios;
+
+    *bios = 0xF0;
+    myusec_delay(10);
+    erase_29f002(flash);
+    //*bios = 0xF0;
+#if 1
+   printf ("Programming Page: ");
+    for (i = 0; i < total_size; i++) {
+	/* write to the sector */
+	if ((i & 0xfff) == 0)
+	    printf ("address: 0x%08lx", (unsigned long)i);
+	*(bios + 0x5555) = 0xAA;
+	*(bios + 0x2AAA) = 0x55;
+	*(bios + 0x5555) = 0xA0;
+	*dst++ = *buf++;
+
+	/* wait for Toggle bit ready */
+	toggle_ready_jedec(dst);
+
+	if ((i & 0xfff) == 0)
+	    printf ("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
+    }
+#endif
+    printf("\n");
+
+    return(0);
+}
diff --git a/util/flash_and_burn/mx29f002.h b/util/flash_and_burn/mx29f002.h
new file mode 100644
index 0000000000..0d252bbe9e
--- /dev/null
+++ b/util/flash_and_burn/mx29f002.h
@@ -0,0 +1,8 @@
+#ifndef __MX29F002_H__
+#define __MX29F002_H__ 1
+
+extern int probe_29f002 (struct flashchip * flash);
+extern int erase_29f002 (struct flashchip * flash);
+extern int write_29f002 (struct flashchip * flash, unsigned char * buf);
+
+#endif /* !__MX29F002_H__ */
diff --git a/util/flash_and_burn/sst28sf040.c b/util/flash_and_burn/sst28sf040.c
new file mode 100644
index 0000000000..ee49f79786
--- /dev/null
+++ b/util/flash_and_burn/sst28sf040.c
@@ -0,0 +1,169 @@
+/*
+ * sst28sf040.c: driver for SST28SF040C flash models.
+ *
+ *
+ * Copyright 2000 Silicon Integrated System Corporation
+ *
+ *	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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * Reference:
+ *	4 MEgabit (512K x 8) SuperFlash EEPROM, SST28SF040 data sheet
+ *
+ * $Id$
+ */
+
+#include <stdio.h>
+#include "flash.h"
+#include "jedec.h"
+
+#define AUTO_PG_ERASE1		0x20
+#define AUTO_PG_ERASE2		0xD0
+#define AUTO_PGRM			0x10
+#define CHIP_ERASE		0x30
+#define RESET			0xFF
+#define READ_ID			0x90
+
+static __inline__ void protect_28sf040 (volatile char * bios)
+{
+	/* ask compiler not to optimize this */
+	volatile unsigned char tmp;
+
+	tmp = *(volatile unsigned char *) (bios + 0x1823);
+	tmp = *(volatile unsigned char *) (bios + 0x1820);
+	tmp = *(volatile unsigned char *) (bios + 0x1822);
+	tmp = *(volatile unsigned char *) (bios + 0x0418);
+	tmp = *(volatile unsigned char *) (bios + 0x041B);
+	tmp = *(volatile unsigned char *) (bios + 0x0419);
+	tmp = *(volatile unsigned char *) (bios + 0x040A);
+}
+
+static __inline__ void unprotect_28sf040 (volatile char * bios)
+{
+	/* ask compiler not to optimize this */
+	volatile unsigned char tmp;
+
+	tmp = *(volatile unsigned char *) (bios + 0x1823);
+	tmp = *(volatile unsigned char *) (bios + 0x1820);
+	tmp = *(volatile unsigned char *) (bios + 0x1822);
+	tmp = *(volatile unsigned char *) (bios + 0x0418);
+	tmp = *(volatile unsigned char *) (bios + 0x041B);
+	tmp = *(volatile unsigned char *) (bios + 0x0419);
+	tmp = *(volatile unsigned char *) (bios + 0x041A);
+}
+
+static __inline__ int erase_sector_28sf040 (volatile char * bios, unsigned long address)
+{
+	*bios = AUTO_PG_ERASE1;
+	*(bios + address) = AUTO_PG_ERASE2;
+
+	/* wait for Toggle bit ready         */
+	toggle_ready_jedec(bios);
+
+	return(0);
+}
+
+static __inline__ int write_sector_28sf040(volatile char * bios, unsigned char * src,
+				       volatile unsigned char * dst, unsigned int page_size)
+{
+	int i;
+
+	for (i = 0; i < page_size; i++) {
+		/* transfer data from source to destination */
+		if (*src == 0xFF) {
+			dst++, src++;
+			/* If the data is 0xFF, don't program it */
+			continue;
+		}
+		/*issue AUTO PROGRAM command */
+		*dst =  AUTO_PGRM;
+		*dst++ = *src++;
+
+		/* wait for Toggle bit ready */
+		toggle_ready_jedec(bios);
+	}
+
+	return(0);
+}
+
+int probe_28sf040 (struct flashchip * flash)
+{
+	volatile char * bios = flash->virt_addr;
+	unsigned char  id1, id2, tmp;
+
+	/* save the value at the beginning of the Flash */
+	tmp = *bios;
+
+	*bios = RESET;
+	myusec_delay(10);
+
+	*bios = READ_ID;
+	myusec_delay(10);
+	id1 = *(volatile unsigned char *) bios;
+	myusec_delay(10);
+	id2 = *(volatile unsigned char *) (bios + 0x01);
+
+	*bios = RESET;
+	myusec_delay(10);
+
+	printf("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__ , id1, id2);
+	if (id1 == flash->manufacture_id && id2 == flash->model_id)
+		return 1;
+
+	/* if there is no SST28SF040, restore the original value */
+	*bios = tmp;
+	return 0;
+}
+
+int erase_28sf040 (struct flashchip * flash)
+{
+	volatile char * bios = flash->virt_addr;
+
+	unprotect_28sf040 (bios);
+	*bios = CHIP_ERASE;
+	*bios = CHIP_ERASE;
+	protect_28sf040 (bios);
+
+	myusec_delay(10);
+	toggle_ready_jedec(bios);
+
+	return(0);
+}
+
+int write_28sf040 (struct flashchip * flash, unsigned char * buf)
+{
+	int i;
+	int total_size = flash->total_size * 1024, page_size = flash->page_size;
+	volatile char * bios = flash->virt_addr;
+
+	unprotect_28sf040 (bios);
+
+	printf ("Programming Page: ");
+	for (i = 0; i < total_size/page_size; i++) {
+		/* erase the page before programming */
+		erase_sector_28sf040(bios, i * page_size);
+
+		/* write to the sector */
+		printf ("%04d at address: 0x%08x", i, i * page_size);
+		write_sector_28sf040(bios, buf + i * page_size, bios + i * page_size,
+				     page_size);
+		printf ("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
+	}
+	printf("\n");
+
+	protect_28sf040 (bios);
+
+	return(0);
+}
diff --git a/util/flash_and_burn/sst28sf040.h b/util/flash_and_burn/sst28sf040.h
new file mode 100644
index 0000000000..ab2641d329
--- /dev/null
+++ b/util/flash_and_burn/sst28sf040.h
@@ -0,0 +1,8 @@
+#ifndef __SST28SF040_H__
+#define __SST28SF040_H__
+
+extern int probe_28sf040 (struct flashchip * flash);
+extern int erase_28sf040 (struct flashchip * flash);
+extern int write_28sf040 (struct flashchip * flash, unsigned char * buf);
+
+#endif /* !__SST28SF040_H__ */
diff --git a/util/flash_and_burn/sst39sf020.c b/util/flash_and_burn/sst39sf020.c
new file mode 100644
index 0000000000..65fc623825
--- /dev/null
+++ b/util/flash_and_burn/sst39sf020.c
@@ -0,0 +1,199 @@
+/*
+ * sst39sf020.c: driver for SST28SF040C flash models.
+ *
+ *
+ * Copyright 2000 Silicon Integrated System Corporation
+ *
+ *	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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * Reference:
+ *	4 MEgabit (512K x 8) SuperFlash EEPROM, SST28SF040 data sheet
+ *
+ * $Id$
+ */
+
+#include <stdio.h>
+#include "flash.h"
+#include "jedec.h"
+#include "sst39sf020.h"
+
+#define AUTO_PG_ERASE1		0x20
+#define AUTO_PG_ERASE2		0xD0
+#define AUTO_PGRM			0x10
+#define CHIP_ERASE		0x30
+#define RESET			0xFF
+#define READ_ID			0x90
+
+static __inline__ void protect_39sf020 (volatile char * bios)
+{
+	/* ask compiler not to optimize this */
+	volatile unsigned char tmp;
+
+	tmp = *(volatile unsigned char *) (bios + 0x1823);
+	tmp = *(volatile unsigned char *) (bios + 0x1820);
+	tmp = *(volatile unsigned char *) (bios + 0x1822);
+	tmp = *(volatile unsigned char *) (bios + 0x0418);
+	tmp = *(volatile unsigned char *) (bios + 0x041B);
+	tmp = *(volatile unsigned char *) (bios + 0x0419);
+	tmp = *(volatile unsigned char *) (bios + 0x040A);
+}
+
+static __inline__ void unprotect_39sf020 (volatile char * bios)
+{
+	/* ask compiler not to optimize this */
+	volatile unsigned char tmp;
+
+	tmp = *(volatile unsigned char *) (bios + 0x1823);
+	tmp = *(volatile unsigned char *) (bios + 0x1820);
+	tmp = *(volatile unsigned char *) (bios + 0x1822);
+	tmp = *(volatile unsigned char *) (bios + 0x0418);
+	tmp = *(volatile unsigned char *) (bios + 0x041B);
+	tmp = *(volatile unsigned char *) (bios + 0x0419);
+	tmp = *(volatile unsigned char *) (bios + 0x041A);
+}
+
+static __inline__ int erase_sector_39sf020 (volatile char * bios, unsigned long address)
+{
+	*bios = AUTO_PG_ERASE1;
+	*(bios + address) = AUTO_PG_ERASE2;
+
+	/* wait for Toggle bit ready         */
+	toggle_ready_jedec(bios);
+
+	return(0);
+}
+
+static __inline__ int write_sector_39sf020(volatile char * bios, 
+				       unsigned char * src,
+				       volatile unsigned char * dst, 
+				       unsigned int page_size)
+{
+	int i;
+	volatile char *Temp;
+
+	for (i = 0; i < page_size; i++) {
+		if (*dst != 0xff) {
+			printf("FATAL: dst %p not erased (val 0x%x\n", dst, *dst);
+			return(-1);
+		}
+		/* transfer data from source to destination */
+		if (*src == 0xFF) {
+			dst++, src++;
+			/* If the data is 0xFF, don't program it */
+			continue;
+		}
+		Temp =   (bios + 0x5555); 
+		*Temp = 0xAA;                   
+		Temp =  bios + 0x2AAA; 
+		*Temp = 0x55; 
+		Temp =  bios + 0x5555; 
+		*Temp = 0xA0;                   
+		*dst = *src;
+		toggle_ready_jedec(bios);
+		if (*dst != *src)
+			printf("BAD! dst 0x%lx val 0x%x src 0x%x\n",
+			       (unsigned long)dst, *dst, *src);
+		dst++, src++;
+	}
+
+	return(0);
+}
+
+int probe_39sf020 (struct flashchip * flash)
+{
+        volatile char * bios = flash->virt_addr;
+        unsigned char  id1, id2;
+
+        *(volatile char *) (bios + 0x5555) = 0xAA;
+        myusec_delay(10);
+        *(volatile char *) (bios + 0x2AAA) = 0x55;
+        myusec_delay(10);
+        *(volatile char *) (bios + 0x5555) = 0x90;
+
+        myusec_delay(10);
+
+        id1 = *(volatile unsigned char *) bios;
+        id2 = *(volatile unsigned char *) (bios + 0x01);
+
+        *(volatile char *) (bios + 0x5555) = 0xAA;
+        *(volatile char *) (bios + 0x2AAA) = 0x55;
+        *(volatile char *) (bios + 0x5555) = 0xF0;
+
+        myusec_delay(10);
+
+	printf("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, id1, id2);
+
+        if (id1 == flash->manufacture_id && id2 == flash->model_id)
+                return 1;
+
+        return 0;
+}
+
+int erase_39sf020 (struct flashchip * flash)
+{
+	volatile unsigned char * bios = flash->virt_addr;
+	volatile unsigned char *Temp;
+
+        /*  Issue the Sector Erase command to 39SF020   */
+        Temp  = bios + 0x5555; /* set up address to be C000:5555h      */
+        *Temp = 0xAA;            /* write data 0xAA to the address       */
+	myusec_delay(10);
+        Temp  = bios + 0x2AAA; /* set up address to be C000:2AAAh      */
+        *Temp = 0x55;         /* write data 0x55 to the address       */
+	myusec_delay(10);
+        Temp  = bios + 0x5555; /* set up address to be C000:5555h      */
+        *Temp = 0x80;            /* write data 0x80 to the address       */
+	myusec_delay(10);
+        Temp  = bios + 0x5555; /* set up address to be C000:5555h      */
+        *Temp = 0xAA;         /* write data 0xAA to the address       */
+	myusec_delay(10);
+        Temp  = bios + 0x2AAA; /* set up address to be C000:2AAAh      */
+        *Temp = 0x55;          /* write data 0x55 to the address       */
+	myusec_delay(10);
+        Temp  = bios + 0x5555; /* set up address to be C000:5555h      */
+        *Temp = 0x10;       /* write data 0x55 to the address       */
+
+	myusec_delay(50000);
+
+	return(0);
+}
+
+int write_39sf020 (struct flashchip * flash, unsigned char * buf)
+{
+	int i;
+	int total_size = flash->total_size * 1024, page_size = flash->page_size;
+	volatile char * bios = flash->virt_addr;
+
+//	unprotect_39sf020 (bios);
+	erase_39sf020(flash);
+	printf ("Programming Page: ");
+	for (i = 0; i < total_size/page_size; i++) {
+		/* erase the page before programming */
+		//erase_sector_39sf020(bios, i * page_size);
+
+		/* write to the sector */
+		printf ("%04d at address: 0x%08x", i, i * page_size);
+		write_sector_39sf020(bios, buf + i * page_size, bios + i * page_size,
+				     page_size);
+		printf ("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
+                fflush(stdout);
+	}
+	printf("\n");
+
+//	protect_39sf020 (bios);
+
+	return(0);
+}
diff --git a/util/flash_and_burn/sst39sf020.h b/util/flash_and_burn/sst39sf020.h
new file mode 100644
index 0000000000..dfbedfffc7
--- /dev/null
+++ b/util/flash_and_burn/sst39sf020.h
@@ -0,0 +1,8 @@
+#ifndef __SST39SF020_H__
+#define __SST39SF020_H__ 1
+
+extern int probe_39sf020 (struct flashchip * flash);
+extern int erase_39sf020 (struct flashchip * flash);
+extern int write_39sf020 (struct flashchip * flash, unsigned char * buf);
+
+#endif /* !__SST39SF020_H__ */
diff --git a/util/flash_and_burn/w49f002u.c b/util/flash_and_burn/w49f002u.c
new file mode 100644
index 0000000000..b7c57eb256
--- /dev/null
+++ b/util/flash_and_burn/w49f002u.c
@@ -0,0 +1,119 @@
+/*
+ * w49f002u.c: driver for Winbond 49F002U flash models
+ *
+ *
+ * Copyright 2000 Silicon Integrated System Corporation
+ *
+ *	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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ * Reference:
+ *	W49F002U data sheet
+ *
+ * $Id
+ */
+
+#include <stdio.h>
+#include "flash.h"
+#include "jedec.h"
+#include "w49f002u.h"
+
+int probe_49f002 (struct flashchip * flash)
+{
+	volatile char * bios = flash->virt_addr;
+	unsigned char id1, id2;
+
+	*(bios + 0x5555) = 0xAA;
+	*(bios + 0x2AAA) = 0x55;
+	*(bios + 0x5555) = 0x90;
+    
+	id1 = *(volatile unsigned char *) bios;
+	id2 = *(volatile unsigned char *) (bios + 0x01);
+ 
+	*bios = 0xF0;
+
+	myusec_delay(10);
+
+	printf("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, id1, id2);	
+
+	if (id1 == flash->manufacture_id && id2 == flash->model_id)
+		return 1;
+
+	return 0;
+}
+
+int erase_49f002 (struct flashchip * flash)
+{
+	volatile char * bios = flash->virt_addr;
+
+	*(bios + 0x5555) = 0xAA;
+	*(bios + 0x2AAA) = 0x55;
+	*(bios + 0x5555) = 0x80;
+	*(bios + 0x5555) = 0xAA;
+	*(bios + 0x2AAA) = 0x55;
+	*(bios + 0x5555) = 0x10;
+
+	myusec_delay(100);
+	toggle_ready_jedec(bios);
+
+	//   while ((*bios & 0x40) != 0x40)
+	//;
+
+#if 0
+	toggle_ready_jedec(bios);
+	*(bios + 0x0ffff) = 0x30;
+	*(bios + 0x1ffff) = 0x30;
+	*(bios + 0x2ffff) = 0x30;
+	*(bios + 0x37fff) = 0x30;
+	*(bios + 0x39fff) = 0x30;
+	*(bios + 0x3bfff) = 0x30;
+#endif
+
+	return(0);
+}
+
+int write_49f002 (struct flashchip * flash, unsigned char * buf)
+{
+    int i;
+    int total_size = flash->total_size * 1024;
+    volatile char * bios = flash->virt_addr;
+    volatile char * dst = bios;
+
+    *bios = 0xF0;
+    myusec_delay(10);
+    erase_49f002(flash);
+    //*bios = 0xF0;
+#if 1
+   printf ("Programming Page: ");
+    for (i = 0; i < total_size; i++) {
+	/* write to the sector */
+	if ((i & 0xfff) == 0)
+	    printf ("address: 0x%08lx", (unsigned long)i);
+	*(bios + 0x5555) = 0xAA;
+	*(bios + 0x2AAA) = 0x55;
+	*(bios + 0x5555) = 0xA0;
+	*dst++ = *buf++;
+
+	/* wait for Toggle bit ready */
+	toggle_ready_jedec(dst);
+
+	if ((i & 0xfff) == 0)
+	    printf ("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b");
+    }
+#endif
+    printf("\n");
+
+    return(0);
+}
diff --git a/util/flash_and_burn/w49f002u.h b/util/flash_and_burn/w49f002u.h
new file mode 100644
index 0000000000..9705d4247b
--- /dev/null
+++ b/util/flash_and_burn/w49f002u.h
@@ -0,0 +1,8 @@
+#ifndef __W49F002U_H__
+#define __W49F002U_H__ 1
+
+extern int probe_49f002 (struct flashchip * flash);
+extern int erase_49f002 (struct flashchip * flash);
+extern int write_49f002 (struct flashchip * flash, unsigned char * buf);
+
+#endif /* !__W49F002U_H__ */