Hi,
On Sun, Dec 11, 2011 at 11:51 PM, siddharth baisane nov15twentyten@gmail.com wrote:
hi,
I am trying to print statement in uboot. but whenever I add *printf *statement board hangs. For example in *u-boot/lib_arm/board.c* i added prinf statement and board hags.
void start_armboot (void) { init_fnc_t **init_fnc_ptr; char *s; #if defined(CONFIG_VFD) || defined(CONFIG_LCD) unsigned long addr; #endif
*printf("armboot starts\n");* /* Pointer is writable since we allocated a register for it */ gd = (gd_t*)(_armboot_start - CONFIG_SYS_MALLOC_LEN - sizeof(gd_t)); /* compiler optimization barrier needed for GCC >= 3.4 */ __asm__ __volatile__("": : :"memory");
memset ((void*)gd, 0, sizeof (gd_t)); gd->bd = (bd_t*)((char*)gd - sizeof(bd_t)); memset (gd->bd, 0, sizeof (bd_t));
gd->flags |= GD_FLG_RELOC;
monitor_flash_len = _bss_start - _armboot_start;
You can use the CONFIG_PRE_CONSOLE_BUFFER feature to support printf() prior to console_init_f().
Regards, Simon
Thanks
U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot