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>
diff --git a/arch/m68k/cpu/mcf52x2/start.S b/arch/m68k/cpu/mcf52x2/start.S
index 4af691f..a048884 100644
--- a/arch/m68k/cpu/mcf52x2/start.S
+++ b/arch/m68k/cpu/mcf52x2/start.S
@@ -192,16 +192,34 @@
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)