[U-Boot] [PATCH 06/10] arm64: Adjust start-up code to use board_init_f_mem()
Simon Glass
sjg at chromium.org
Thu Apr 16 03:14:05 CEST 2015
We can use this C function to do the early memory layout and init.
Signed-off-by: Simon Glass <sjg at chromium.org>
---
arch/arm/lib/crt0_64.S | 19 ++++++-------------
1 file changed, 6 insertions(+), 13 deletions(-)
diff --git a/arch/arm/lib/crt0_64.S b/arch/arm/lib/crt0_64.S
index 1654011..33432f2 100644
--- a/arch/arm/lib/crt0_64.S
+++ b/arch/arm/lib/crt0_64.S
@@ -61,19 +61,12 @@ ENTRY(_main)
/*
* Set up initial C runtime environment and call board_init_f(0).
*/
- ldr x0, =(CONFIG_SYS_INIT_SP_ADDR)
- 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 */
+ ldr sp, =(CONFIG_SYS_INIT_SP_ADDR)
+
+ mov x0, sp
+ bl board_init_f_mem
+
+ mov sp, x0
mov x0, #0
bl board_init_f
--
2.2.0.rc0.207.ga3a616c
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