[U-Boot-Users] question about ep7312 boot

[xiaojun chen]

hi,
  below is the code segment from /u-boot-1.1.3/cpu/arm720t/start.s
if i can add these code and compile , i can not boot my board
and after my delete these code, My board boot successfully.
what's meaning about these code? are there some bug in it ?
....
#if TEXT_BASE
	ldr	r2, =0x0		/* Relocate the exception vectors   */
	cmp	r1, r2			/* and associated data to address   */
	ldmneia r0!, {r3-r10}		/* 0x0. Do nothing if TEXT_BASE is  */
	stmneia r2!, {r3-r10}		/* 0x0. Copy the first 15 words.    */
	ldmneia r0, {r3-r9}
	stmneia r2, {r3-r9}
	adrne	r0, _start		/* restore r0			    */
#endif
...

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