[U-Boot] [PATCH 05/10] arm: Adjust start-up code to use board_init_f_mem()

Simon Glass sjg at chromium.org
Thu Apr 16 03:14:04 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.S | 20 ++++----------------
 1 file changed, 4 insertions(+), 16 deletions(-)

diff --git a/arch/arm/lib/crt0.S b/arch/arm/lib/crt0.S
index 92d3732..871e2b0 100644
--- a/arch/arm/lib/crt0.S
+++ b/arch/arm/lib/crt0.S
@@ -66,23 +66,11 @@ ENTRY(_main)
 #else
 	ldr	sp, =(CONFIG_SYS_INIT_SP_ADDR)
 #endif
-	bic	sp, sp, #7	/* 8-byte alignment for ABI compliance */
-	mov	r2, sp
-	sub	sp, sp, #GD_SIZE	/* allocate one GD above SP */
-	bic	sp, sp, #7	/* 8-byte alignment for ABI compliance */
-	mov	r9, sp		/* GD is above SP */
-	mov	r1, sp
+	mov	r0, sp
+	bl	board_init_f_mem
+	mov	sp, r0
+
 	mov	r0, #0
-clr_gd:
-	cmp	r1, r2			/* while not at end of GD */
-	strlo	r0, [r1]		/* clear 32-bit GD word */
-	addlo	r1, r1, #4		/* move to next */
-	blo	clr_gd
-#if defined(CONFIG_SYS_MALLOC_F_LEN)
-	sub	sp, sp, #CONFIG_SYS_MALLOC_F_LEN
-	str	sp, [r9, #GD_MALLOC_BASE]
-#endif
-	/* mov r0, #0 not needed due to above code */
 	bl	board_init_f
 
 #if ! defined(CONFIG_SPL_BUILD)
-- 
2.2.0.rc0.207.ga3a616c



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