Allocate memory space for pre-allocation malloc and zero global data.
This code is partly from crt0.S.
Signed-off-by: David Feng <fenghua@phytium.com.cn>
#ifndef _ASM_CONFIG_H_
#define _ASM_CONFIG_H_
#ifndef _ASM_CONFIG_H_
#define _ASM_CONFIG_H_
-#ifdef __aarch64__
-#define CONFIG_SYS_GENERIC_GLOBAL_DATA
-#endif
-
#define CONFIG_LMB
#define CONFIG_SYS_BOOT_RAMDISK_HIGH
#define CONFIG_LMB
#define CONFIG_SYS_BOOT_RAMDISK_HIGH
* Set up initial C runtime environment and call board_init_f(0).
*/
ldr x0, =(CONFIG_SYS_INIT_SP_ADDR)
* Set up initial C runtime environment and call board_init_f(0).
*/
ldr x0, =(CONFIG_SYS_INIT_SP_ADDR)
- sub x0, x0, #GD_SIZE /* allocate one GD above SP */
+ sub x18, x0, #GD_SIZE /* allocate one GD above SP */
+ bic x18, x18, #0x7 /* 8-byte alignment for GD */
+zero_gd:
+ sub x0, x0, #0x8
+ str xzr, [x0]
+ cmp x0, x18
+ b.gt zero_gd
+#if defined(CONFIG_SYS_MALLOC_F_LEN)
+ sub x0, x18, #CONFIG_SYS_MALLOC_F_LEN
+ str x0, [x18, #GD_MALLOC_BASE]
+#endif
bic sp, x0, #0xf /* 16-byte alignment for ABI compliance */
bic sp, x0, #0xf /* 16-byte alignment for ABI compliance */
- mov x18, sp /* GD is above SP */
mov x0, #0
bl board_init_f
mov x0, #0
bl board_init_f