[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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