diff options
| author | angelo@sysam.it <angelo@sysam.it> | 2016-04-27 21:50:44 +0200 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2016-05-17 09:54:43 -0600 |
| commit | 5044c9cc6c4dffb2959769a785663f46cb418461 (patch) | |
| tree | 3ca99b08de48e0ceff100d5d84bb183a44243a80 /arch/m68k/cpu/mcf523x | |
| parent | 037734393ef6181e87d85be15468af4baee70b42 (diff) | |
m68k: add malloc memory for early malloc
To use serial uclass and DM, CONFIG_SYS_MALLOC_F must be used.
So CONFIG_SYS_GENERIC_GLOBAL_DATA has been undefined and
call to board_init_f_mem() is added for all cpu's.
Signed-off-by: Angelo Dureghello <angelo@sysam.it>
Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch/m68k/cpu/mcf523x')
| -rw-r--r-- | arch/m68k/cpu/mcf523x/start.S | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/arch/m68k/cpu/mcf523x/start.S b/arch/m68k/cpu/mcf523x/start.S index 1702f98ab1..3aa4dd61fa 100644 --- a/arch/m68k/cpu/mcf523x/start.S +++ b/arch/m68k/cpu/mcf523x/start.S @@ -134,17 +134,34 @@ _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) + move.l #board_init_f_alloc_reserve, %a1 + jsr (%a1) + + /* update stack and frame-pointers */ + move.l %d0, %sp + move.l %sp, %fp + + /* initialize reserved area */ + move.l %d0, -(%sp) + move.l #board_init_f_init_reserve, %a1 + jsr (%a1) /* run low-level CPU init code (from flash) */ move.l #cpu_init_f, %a1 jsr (%a1) /* run low-level board init code (from flash) */ + clr.l %sp@- move.l #board_init_f, %a1 jsr (%a1) |