diff --git a/qiboot/Makefile b/qiboot/Makefile
index b49ee49..4d7bb46 100644
--- a/qiboot/Makefile
+++ b/qiboot/Makefile
@@ -14,8 +14,6 @@
 # MA 02111-1307 USA
 #
 
-include ./config.mk
-
 all :
 	cd src ; make all
 
diff --git a/qiboot/README b/qiboot/README
index ab9cad4..e69de29 100644
--- a/qiboot/README
+++ b/qiboot/README
@@ -1,6 +0,0 @@
-use follow command to run this program
-start OpenOCD,then do this
-
-  > reset halt
-  > load_image /path/to/led_on 0
-  > resume
diff --git a/qiboot/src/Makefile b/qiboot/src/Makefile
index e092d01..27d4458 100644
--- a/qiboot/src/Makefile
+++ b/qiboot/src/Makefile
@@ -14,20 +14,32 @@
 # MA 02111-1307 USA
 #
 
-LDS		=kboot-stage1.lds
-INCLUDE		=../include
-IMAGE		=../image
-CFLAGS		=-Wall -I $(INCLUDE) -g -c -o
+include ../config.mk
 
-all:start.S blink_led.c lowlevel_init.S
+LDS	= kboot-stage1.lds
+INCLUDE	= ../include
+IMAGE	= ../image
+CFLAGS	= -Wall -I $(INCLUDE) -g -c -o
+
+START	= start.o lowlevel_init.o
+COBJS	= start_kboot.o nand_read.o
+
+SRCS	:= $(START: .o=.S) $(COBJS: .o=.c)
+
+all:start.S lowlevel_init.S nand_read.c start_kboot.c
 	$(CC) $(CFLAGS) start.o start.S
-	$(CC) $(CFLAGS) blink_led.o blink_led.c
 	$(CC) $(CFLAGS) lowlevel_init.o lowlevel_init.S
-	$(LD) -T$(LDS) -g start.o blink_led.o lowlevel_init.o -o led.o
-	$(OBJCOPY) -O binary -S led.o $(IMAGE)/led_on 
+	$(CC) $(CFLAGS) nand_read.o nand_read.c
+	$(CC) $(CFLAGS) start_kboot.o start_kboot.c
+	$(LD) -T$(LDS) -g $(START) $(COBJS) -o start_kboot_all.o
+	$(OBJCOPY) -O binary -S start_kboot_all.o $(IMAGE)/start 
+
+blink_led:led_on.S
+	$(CC) $(CFLAGS) led_on.o led_on.S
+	$(LD) -g led_on.o -o led_on_temp.o
+	$(OBJCOPY) -O binary -S led_on_temp.o $(IMAGE)/led_on 
 
 clean:
 	rm -f *.o
-	rm -f led_on
 	rm -f $(IMAGE)/*
 
diff --git a/qiboot/src/blink_led.c b/qiboot/src/blink_led.c
index f5abb74..92c8211 100644
--- a/qiboot/src/blink_led.c
+++ b/qiboot/src/blink_led.c
@@ -52,9 +52,3 @@ int blink_led()
     }
     return 0;
 }
-
-int start_armboot()
-{
-  blink_led();
-  return 0;
-}
diff --git a/qiboot/src/kboot-stage1.lds b/qiboot/src/kboot-stage1.lds
index a1c9529..6393fdb 100644
--- a/qiboot/src/kboot-stage1.lds
+++ b/qiboot/src/kboot-stage1.lds
@@ -34,7 +34,7 @@ SECTIONS
 	{
 	  start.o	(.text)
 	  lowlevel_init.o(.text)
-	  blink_led.o 	(.text)
+	  start_kboot.o	(.text)
 	  *(.text)
 	}
 
diff --git a/qiboot/src/led_on.S b/qiboot/src/led_on.S
new file mode 100644
index 0000000..1ebcaa9
--- /dev/null
+++ b/qiboot/src/led_on.S
@@ -0,0 +1,37 @@
+_start: 
+	mov	ip, sp
+	stmfd	sp!, {fp, ip, lr, pc}
+	sub	fp, ip, #4
+	ldr	r2, .L4
+	mov	r3, #5
+	str	r3, [r2, #0]
+	ldr	r2, .L4+4
+	ldr	r3, .L4+8
+	str	r3, [r2, #0]
+.L2:
+	ldr	r2, .L4+12
+	ldr	r3, .L4+12
+	ldr	r3, [r3, #0]
+	bic	r3, r3, #1
+	str	r3, [r2, #0]
+	ldr	r0, .L4+8
+	bl	delay
+	ldr	r2, .L4+12
+	ldr	r3, .L4+12
+	ldr	r3, [r3, #0]
+	orr	r3, r3, #1
+	str	r3, [r2, #0]
+	ldr	r0, .L4+8
+	bl	delay
+	b	.L2
+.L5:
+	.align	2
+.L4:
+	.word	1442840592
+	.word	1442840600
+	.word	65535
+	.word	1442840596
+ delay:
+         subs    r0,r0,#0x1
+         bne     delay
+         mov     pc,lr
diff --git a/qiboot/src/nand_read.c b/qiboot/src/nand_read.c
new file mode 100644
index 0000000..2ae0cbe
--- /dev/null
+++ b/qiboot/src/nand_read.c
@@ -0,0 +1,124 @@
+/*
+ * nand_read.c: Simple NAND read functions for booting from NAND
+ *
+ * This is used by cpu/arm920/start.S assembler code,
+ * and the board-specific linker script must make sure this
+ * file is linked within the first 4kB of NAND flash.
+ *
+ * Taken from GPLv2 licensed vivi bootloader,
+ * Copyright (C) 2002 MIZI Research, Inc.
+ *
+ * Author: Hwang, Chideok <hwang@mizi.com>
+ * Date  : $Date: 2004/02/04 10:37:37 $
+ *
+ * u-boot integration and bad-block skipping (C) 2006 by OpenMoko, Inc.
+ * Author: Harald Welte <laforge@openmoko.org>
+ */
+
+
+#define NAND_CMD_READ0		0
+#define NAND_CMD_READ1		1
+/* Extended commands for large page devices */
+#define NAND_CMD_READSTART	0x30
+
+#define __REGb(x)		(*(volatile unsigned char *)(x))
+#define __REGw(x)		(*(volatile unsigned short *)(x))
+#define __REGi(x)		(*(volatile unsigned int *)(x))
+#define NF_BASE		0x4e000000
+#define NFCONF		__REGi(NF_BASE + 0x0)
+#define NFCONT		__REGi(NF_BASE + 0x4)
+#define NFCMD		__REGb(NF_BASE + 0x8)
+#define NFADDR		__REGb(NF_BASE + 0xc)
+#define NFDATA		__REGb(NF_BASE + 0x10)
+#define NFDATA16		__REGw(NF_BASE + 0x10)
+#define NFSTAT		__REGb(NF_BASE + 0x20)
+#define NFSTAT_BUSY	1
+#define nand_select()	(NFCONT &= ~(1 << 1))
+#define nand_deselect()	(NFCONT |= (1 << 1))
+#define nand_clear_RnB()	(NFSTAT |= (1 << 2))
+
+static inline void nand_wait(void)
+{
+        int i=0;
+	while (!(NFSTAT & NFSTAT_BUSY))
+		for (i=0; i<10; i++);
+}
+
+/* configuration for 2440 with 2048byte sized flash */
+#define NAND_5_ADDR_CYCLE
+#define NAND_PAGE_SIZE		2048
+#define BAD_BLOCK_OFFSET	NAND_PAGE_SIZE
+#define	NAND_BLOCK_MASK		(NAND_PAGE_SIZE - 1)
+#define NAND_BLOCK_SIZE		(NAND_PAGE_SIZE * 64)#endif
+
+static int is_bad_block(unsigned long i)
+{
+	unsigned char data;
+	unsigned long page_num;
+
+	nand_clear_RnB();
+	page_num = i >> 11; /* addr / 2048 */
+	NFCMD = NAND_CMD_READ0;
+	NFADDR = BAD_BLOCK_OFFSET & 0xff;
+	NFADDR = (BAD_BLOCK_OFFSET >> 8) & 0xff;
+	NFADDR = page_num & 0xff;
+	NFADDR = (page_num >> 8) & 0xff;
+	NFADDR = (page_num >> 16) & 0xff;
+	NFCMD = NAND_CMD_READSTART;
+	nand_wait();
+	data = (NFDATA & 0xff);
+	if (data != 0xff)
+		return 1;
+
+	return 0;
+}
+
+static int nand_read_page_ll(unsigned char *buf, unsigned long addr)
+{
+	unsigned short *ptr16 = (unsigned short *)buf;
+	unsigned int i, page_num;
+
+	nand_clear_RnB();
+
+	NFCMD = NAND_CMD_READ0;
+	page_num = addr >> 11; /* addr / 2048 */
+	/* Write Address */
+	NFADDR = 0;
+	NFADDR = 0;
+	NFADDR = page_num & 0xff;
+	NFADDR = (page_num >> 8) & 0xff;
+	NFADDR = (page_num >> 16) & 0xff;
+	NFCMD = NAND_CMD_READSTART;
+	nand_wait();
+
+	for (i = 0; i < NAND_PAGE_SIZE/2; i++) {
+		*ptr16 = NFDATA16;
+		ptr16++;
+	}
+	return NAND_PAGE_SIZE;
+}
+
+/* low level nand read function */
+ int nand_read_ll(unsigned char *buf, unsigned long start_addr, int size)
+{
+	int i, j;
+
+	if ((start_addr & NAND_BLOCK_MASK) || (size & NAND_BLOCK_MASK))
+		return -1;	/* invalid alignment */
+
+	/* chip Enable */
+	nand_select();
+	nand_clear_RnB();
+	for (i=0; i<10; i++);
+
+	for (i=start_addr; i < (start_addr + size);) {
+		j = nand_read_page_ll(buf, i);
+		i += j;
+		buf += j;
+	}
+
+	/* chip Disable */
+	nand_deselect();
+
+	return 0;
+}
diff --git a/qiboot/src/start.S b/qiboot/src/start.S
index bf1a7f5..c98a55b 100644
--- a/qiboot/src/start.S
+++ b/qiboot/src/start.S
@@ -1,7 +1,7 @@
 /*
  * (C) Copyright 2007 OpenMoko, Inc.
  * 
- * Configuation settings for the FIC Neo GTA02 Linux GSM phone
+ * Configuation settings for the OPENMOKO Neo GTA02 Linux GSM phone
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -26,10 +26,6 @@ _start:	b       start_code
 _TEXT_BASE:
 	.word	TEXT_BASE
 
-.globl _armboot_start
-_armboot_start:
-	.word _start
-
 /*
  * These are defined in the board-specific linker script.
  */
@@ -159,11 +155,10 @@ clbss_l:
 	cmp	r0, r1
 	ble	clbss_l
 
-	/* blink led */
 	ldr	pc, _start_armboot
 
 _start_armboot:	
-	.word 	start_armboot
+	.word 	start_kboot
 
 /*
  *************************************************************************
diff --git a/qiboot/src/start_kboot.c b/qiboot/src/start_kboot.c
new file mode 100644
index 0000000..581cb6e
--- /dev/null
+++ b/qiboot/src/start_kboot.c
@@ -0,0 +1,48 @@
+/*
+ * (C) Copyright 2007 OpenMoko, Inc.
+ * Author: xiangfu liu <xiangfu@openmoko.org>
+ *
+ * Configuation settings for the OPENMOKO Neo GTA02 Linux GSM phone
+ *
+ * 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
+ */
+
+unsigned char buf[]={
+0x0d,0xc0,0xa0,0xe1,0x00,0xd8,0x2d,0xe9,0x04,0xb0,0x4c,0xe2,0x4c,0x20,0x9f,0xe5,
+0x05,0x30,0xa0,0xe3,0x00,0x30,0x82,0xe5,0x44,0x20,0x9f,0xe5,0x44,0x30,0x9f,0xe5,
+0x00,0x30,0x82,0xe5,0x40,0x20,0x9f,0xe5,0x3c,0x30,0x9f,0xe5,0x00,0x30,0x93,0xe5,
+0x01,0x30,0xc3,0xe3,0x00,0x30,0x82,0xe5,0x28,0x00,0x9f,0xe5,0x0b,0x00,0x00,0xeb,
+0x24,0x20,0x9f,0xe5,0x20,0x30,0x9f,0xe5,0x00,0x30,0x93,0xe5,0x01,0x30,0x83,0xe3,
+0x00,0x30,0x82,0xe5,0x0c,0x00,0x9f,0xe5,0x04,0x00,0x00,0xeb,0xf0,0xff,0xff,0xea,
+0x10,0x00,0x00,0x56,0x18,0x00,0x00,0x56,0xff,0xff,0x00,0x00,0x14,0x00,0x00,0x56,
+0x01,0x00,0x50,0xe2,0xfd,0xff,0xff,0x1a,0x0e,0xf0,0xa0,0xe1,0x0a};
+
+#define ADDR  ((volatile unsigned *)&buf) 
+
+int start_kboot()
+{
+  /*   nand_read_ll(buf, 0, sizeof(buf));*/
+  /* 
+     void (*fp)(void)=(void (*)(void))&buf;
+     (fp)();
+  */
+  asm volatile("mov pc, %0\n"
+       :              /* output */
+       :"r"(ADDR)     /* input */
+       );    
+  return 0;
+}
+