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@gmail.com 　　　　　　　　　　2006-06-08