openwrt/package/boot/uboot-oxnas/files/board/ox820/lowlevel_init.S

20 lines
513 B
ArmAsm

#include <config.h>
#ifndef CONFIG_SPL_BUILD
.globl lowlevel_init
lowlevel_init:
/*
* Copy exception table to relocated address in internal SRAM
*/
ldr r0, src /* Address of exception table in flash */
ldr r1, dest /* Relocated address of exception table */
ldmia r0!, {r3-r10} /* Copy exception table and jump values from */
stmia r1!, {r3-r10} /* FLASH to relocated address */
ldmia r0!, {r3-r10}
stmia r1!, {r3-r10}
mov pc, lr
src: .word CONFIG_SYS_TEXT_BASE
dest: .word CONFIG_SRAM_BASE
#endif