add serial output function, Thanks Dennis <dennis.yxun@gmail.com>, his patch make me clear. Thank for Andy Green help.

qiboot/Makefile

@@ -14,10 +14,46 @@
 # MA 02111-1307 USA
 #
 
-all :
+include config.mk
-	cd src ; make all
+
+LDS	= src/kboot-stage1.lds
+INCLUDE	= include
+IMAGE_DIR	= image
+#CFLAGS	= -Wall -I $(INCLUDE) -msoft-float -g -c 
+CFLAGS	= -Wall -I $(INCLUDE) -g -c 
+LDFLAGS = 
+#START	= start.o lowlevel_init.o
+S_SRCS	= src/start.S src/lowlevel_init.S
+S_OBJS	= $(patsubst %.S,%.o, $(S_SRCS))
+C_SRCS	= $(wildcard src/*.c)
+C_OBJS	= $(patsubst %.c,%.o, $(C_SRCS))
+
+#SRCS	:= $(START: .o=.S) $(COBJS: .o=.c)
+SRCS	= ${S_SRCS} ${C_SRCS}
+OBJS	= ${S_OBJS} ${C_OBJS}
+
+TARGET	= src/start_kboot_all
+IMAGE = $(IMAGE_DIR)/start
+
+%.o: %.S
+	@$(CC) $(CFLAGS) -o $@ $<
+
+%.o: %.c
+	@$(CC) $(CFLAGS) -o $@ $<
+
+all:${TARGET}
+
+${OBJS}:${SRCS}
+
+${TARGET}:${OBJS}
+	$(LD) ${LDFLAGS} -T$(LDS) -g $(OBJS) -o ${TARGET}  
+	$(OBJCOPY) -O binary -S ${TARGET} ${IMAGE}
+	$(OBJDUMP) -D ${TARGET} >${IMAGE}.dis
+
+blink_led:src/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:
-	cd src ; make clean
+	rm -f src/*.o  src/*~ ${IMAGE}* ${TARGET}
-
-

qiboot/config.mk

@@ -1,6 +1,7 @@
 #
 # Include the make variables (CC, etc...)
 #
+#CROSS_COMPILE=arm-softfloat-linux-gnu-
 CROSS_COMPILE=arm-angstrom-linux-gnueabi-
 
 AS	= $(CROSS_COMPILE)as

qiboot/include/blink_led.h

@@ -0,0 +1,41 @@
+/*
+ * (C) Copyright 2007 OpenMoko, Inc.
+ * Author: xiangfu liu <xiangfu@openmoko.org>
+ *
+ * Configuation settings for the FIC 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
+ */
+
+#ifndef __BLINK_LED_H
+#define __BLINK_LED_H
+
+#define GPBCON        (*(volatile unsigned *)0x56000010)
+#define GPBDAT        (*(volatile unsigned *)0x56000014)
+#define GPBDW         (*(volatile unsigned *)0x56000018)   
+#define ORANGE_OFF()    (GPBDAT &= ~(0x1))  
+#define BLUE_OFF()    (GPBDAT &= ~(0x2))   
+#define ORANGE_ON()     (GPBDAT |= (0x1))
+#define BLUE_ON()     (GPBDAT |= (0x2))
+
+#define ORANGE	1;
+#define BLUE	0;
+
+int orange_on(int times);
+int blue_on(int times);
+int blink_led(void);
+
+#endif /* __BLINK_LED_H */

qiboot/include/nand_read.h

@@ -0,0 +1,22 @@
+/*
+ * 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>
+ */
+#ifndef __NAND_READ_H
+#define __NAND_READ_H
+
+int nand_read_ll(unsigned char *buf, unsigned long start_addr, int size);
+
+#endif /* __NAND_READ_H */

qiboot/include/serial.h

@@ -0,0 +1,32 @@
+/*
+ * (C) Copyright 2007 OpenMoko, Inc.
+ * Author: xiangfu liu <xiangfu@openmoko.org>
+ *
+ * Configuation settings for the FIC 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
+ */
+
+#define rUTXH0	(*(volatile unsigned char *)0x50000023)
+#define UTRSTAT	(*(volatile unsigned char *)0x50000010)
+
+/*
+#define PUT_CHAR()        (rUTXH0 
+#define ORANGE_OFF()    (GPBDAT &= ~(0x1))  
+*/
+
+void serial_puti (const int i);
+

qiboot/src/blink_led.c

@@ -66,7 +66,7 @@ int blue_on(int times)
   return 0;
 }
 
-int blink_led()
+int blink_led(void)
 {
   set_GPB();
 

qiboot/src/kboot-stage1.lds

@@ -32,23 +32,35 @@ SECTIONS
 	. = ALIGN(4);
 	.text      :
 	{
-	  start.o	(.text)
+	  src/start.o	(.text)
-	  lowlevel_init.o(.text)
+	  src/lowlevel_init.o(.text)
-	  start_kboot.o	(.text)
+	  src/start_kboot.o	(.text)
 	  *(.text)
 	}
 
 	. = ALIGN(4);
-	.rodata : { *(.rodata) }
+	.rodata : 
+    { 
+        *(.rodata) 
+    }
 
 	. = ALIGN(4);
-	.data : { *(.data) }
+	.data : 
+    { 
+        *(.data) 
+    }
 
 	. = ALIGN(4);
-	.got : { *(.got) }
+	.got : 
+    { 
+        *(.got) 
+    }
 
 	. = ALIGN(4);
 	__bss_start = .;
-	.bss : { *(.bss) }
+	.bss : 
+    { 
+        *(.bss) 
+    }
 	_end = .;
 }

qiboot/src/serial.c

@@ -0,0 +1,33 @@
+/*
+ * (C) Copyright 2007 OpenMoko, Inc.
+ * Author: xiangfu liu <xiangfu@openmoko.org>
+ *
+ * Configuation settings for the FIC 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
+ */
+
+# include <serial.h>
+
+/*
+ * Output a single byte to the serial port.
+ */
+void serial_puti (const int i)
+{
+    while (!(UTRSTAT & 0x2));
+
+    rUTXH0 |= i;
+}

qiboot/src/start_kboot.c

@@ -21,6 +21,7 @@
  */
 #include "blink_led.h"
 #include "nand_read.h"
+#include "serial.h"
 /*
 unsigned char buf[]={
 0x0d,0xc0,0xa0,0xe1,0x00,0xd8,0x2d,0xe9,0x04,0xb0,0x4c,0xe2,0x4c,0x20,0x9f,0xe5,
@@ -36,14 +37,19 @@ unsigned char buf[2048];
 
 #define ADDR  ((volatile unsigned *)&buf) 
 
-int start_kboot()
+int start_kboot(void)
 {
-  if(nand_read_ll(buf, 0x32000000, sizeof(buf))==-1) 
+    /*1 say hello to uart */ 
-    {
+    serial_puti (123);
-      while(1){blink_led(1);}
+    blue_on(1);
+    /*2. test nand flash */
+    if(nand_read_ll(buf, 0x40000, sizeof(buf))==-1) {
+        while(1) {
+            blink_led();
+        }
     }
 
-  asm volatile("mov pc, %0\n"
+    asm volatile("mov pc, %0\n"
        :              /* output */
        :"r"(ADDR)     /* input */
        );