diff options
Diffstat (limited to 'board/karo/tx25/tx25.c')
| -rw-r--r-- | board/karo/tx25/tx25.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/board/karo/tx25/tx25.c b/board/karo/tx25/tx25.c index 2952eba..461e21f 100644 --- a/board/karo/tx25/tx25.c +++ b/board/karo/tx25/tx25.c @@ -35,7 +35,21 @@ DECLARE_GLOBAL_DATA_PTR; #ifdef CONFIG_SPL_BUILD void board_init_f(ulong bootflag) { - relocate_code(CONFIG_SPL_TEXT_BASE); + /* + * copy ourselves from where we are running to where we were + * linked at. Use ulong pointers as all addresses involved + * are 4-byte-aligned. + */ + ulong *start_ptr, *end_ptr, *link_ptr, *run_ptr, *dst; + asm volatile ("ldr %0, =_start" : "=r"(start_ptr)); + asm volatile ("ldr %0, =_end" : "=r"(end_ptr)); + asm volatile ("ldr %0, =board_init_f" : "=r"(link_ptr)); + asm volatile ("adr %0, board_init_f" : "=r"(run_ptr)); + for (dst = start_ptr; dst < end_ptr; dst++) + *dst = *(dst+(run_ptr-link_ptr)); + /* + * branch to nand_boot's link-time address. + */ asm volatile("ldr pc, =nand_boot"); } #endif |