diff options
Diffstat (limited to 'arch/m68k/cpu/mcf547x_8x/start.S')
| -rw-r--r-- | arch/m68k/cpu/mcf547x_8x/start.S | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/arch/m68k/cpu/mcf547x_8x/start.S b/arch/m68k/cpu/mcf547x_8x/start.S index 75de22d..9a87a0d 100644 --- a/arch/m68k/cpu/mcf547x_8x/start.S +++ b/arch/m68k/cpu/mcf547x_8x/start.S @@ -141,14 +141,29 @@ _start: move.l %d0, (%a1) move.l %d0, (%a2) - /* set stackpointer to end of internal ram to get some stackspace for the - first c-code */ - move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp - clr.l %sp@- + /* put relocation table address to a5 */ + move.l #__got_start, %a5 - move.l #__got_start, %a5 /* put relocation table address to a5 */ + /* setup stack initially on top of internal static ram */ + move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp + + /* + * if configured, malloc_f arena will be reserved first, + * then (and always) gd struct space will be reserved + */ + move.l %sp, -(%sp) + bsr board_init_f_alloc_reserve + + /* update stack and frame-pointers */ + move.l %d0, %sp + move.l %sp, %fp + + /* initialize reserved area */ + move.l %d0, -(%sp) + bsr board_init_f_init_reserve jbsr cpu_init_f /* run low-level CPU init code (from flash) */ + clr.l %sp@- jbsr board_init_f /* run low-level board init code (from flash) */ /* board_init_f() does not return */ |