[U-Boot] [PATCH v4 4/8] arm: Switch aarch64 to using generic global_data setup

[Simon Glass]

There is quite a bit of assembler code that can be removed if we use the
generic global_data setup. Less arch-specific code makes it easier to add
new features and maintain the start-up code.

Drop the unneeded code and adjust the hooks in board_f.c to cope.

Tested on LS2085ARDB and LS2085AQDS (armv8 SoC).
Tested-by: York Sun <yorksun at freescale.com>

Signed-off-by: Simon Glass <sjg at chromium.org>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

 arch/arm/lib/crt0_64.S | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/arch/arm/lib/crt0_64.S b/arch/arm/lib/crt0_64.S
index 8b34e04..cef1c71 100644
--- a/arch/arm/lib/crt0_64.S
+++ b/arch/arm/lib/crt0_64.S
@@ -74,19 +74,10 @@ ENTRY(_main)
 #else
 	ldr	x0, =(CONFIG_SYS_INIT_SP_ADDR)
 #endif
-	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)
-	ldr	x0, =CONFIG_SYS_MALLOC_F_LEN
-	sub	x0, x18, x0
-	str	x0, [x18, #GD_MALLOC_BASE]
-#endif
 	bic	sp, x0, #0xf	/* 16-byte alignment for ABI compliance */
+	bl	board_init_f_mem
+	mov	sp, x0
+
 	mov	x0, #0
 	bl	board_init_f
 
-- 
2.6.0.rc2.230.g3dd15c0