[U-Boot-Users] HELP ABOUT PORTING U-BOOT-1.1.4 TO INTEL PXA255 BOARD

[Paradise]

hi,u-boot-users

	I am trying to port u-boot-1.1.4 to my board,But i meet some problems.

Main resources of the board:
		CPU : INTEL PXA255 400MHZ
	  FLASH : INTEL TE28F128J3C150 32M
	  SDRAM : SAMSUNG 64M

Problem description :	
	According to the Lubbock developing board and the manual of my board , i have modified some files of uboot and compiled correctly(u-boot.bin is about 108K).
	Because i have no any hardware emulator, so i write a simple program to trace the uboot running, i find it stop in board_init() function(/u-boot-1.1.4/board/xhyper255/xhyper255.c).

int board_init (void)
{
	DECLARE_GLOBAL_DATA_PTR;

	/* memory and cpu-speed are setup before relocation */
	/* so we do _nothing_ here */

	/* arch number of cerf PXA Board */
	gd->bd->bi_arch_number = MACH_TYPE_XHYPER255;
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~It stops here!!!!  
			
	/* adress of boot parameters */
	gd->bd->bi_boot_params = 0xa0000100;

	return(0);
}

The simple program writes as follows:
asm("mov r11,#0x08300000;\
	mov r0,#0x0F;\
	strh r0,[r11];\
        \
	ldr r1,=0x40A00010;\
	ldr r2,=0x40A0000C;\
	mov r0,#0x0;\
	str r0,[r1];\
	nop;\
	nop;\
	nop;\
	nop;\
	nop;\
	nop;\
	nop;\
     	mov r0,#0x780000;\
	str r0,[r2];\
        \
      	ldr r1,=0x40A0001C;\
	mov r0,#0x8;\
	str r0,[r1];\
	\
delay1:;\
	ldr r10,=0x40A00014;\
	ldr r0,[r10];\
	tst r0,#0x8;\
	beq delay1;\     	ldr r11,=0x40A0001C;\
	ldr r4,[r11];\
	and r4,r4,#0x07;\
	str r4,[r11];\ 
        \
	str r0,[r10];\
        \
	ldr r1,=0x40A00010;\
	ldr r2,=0x40A0000C;\
	mov r0,#0x0;\
	str r0,[r1];\
	nop;\
	nop;\
	nop;\
	nop;\
	nop;\
	nop;\
	nop;\
 	mov r0,#0x780000;\
	str r0,[r2];\
        \
      	ldr r1,=0x40A0001C;\
	mov r0,#0x8;\
	str r0,[r1];\
	\
delay2:;\
	ldr r10,=0x40A00014;\
	ldr r0,[r10];\
	tst r0,#0x8;\
	beq delay2;\
        \
     	ldr r11,=0x40A0001C;\
	ldr r4,[r11];\
	and r4,r4,#0x07;\
	str r4,[r11];\
        \
	str r0,[r10]");

Appreciate any help. 

THANKS

　　　　　　　　Paradise
　　　　　　　　scut.paradise at gmail.com
　　　　　　　　　　2006-06-08