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

[Paradise <scut.paradise@gmail.com>]

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);
}

when executing "gd->bd->bi_arch_number=MACH_TYPE_XHYPER255;" or other similiar sentences("gd->bd->**=**"), the progress was terminated. But when executing other sentences such as "gd->env_addr  = (ulong)&default_environment[0];gd->env_valid = 0;"(these sentences are in function env_init(),common/env_flash.c),the progress can do them well.

Does anyone meet this problem,or give some useful debug methods without any hardware emulator? Appreciate for any help.

THANKS

        Paradise
        scut.paradise at gmail.com
          2006-06-19