From: Simon Glass <sjg@chromium.org>
Date: Mon, 19 Oct 2015 12:49:59 +0000 (-0600)
Subject: arm: Switch aarch64 to using generic global_data setup
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=931bec31b44fbcb01448651424aaf9b6212c141f;p=u-boot.git

arm: Switch aarch64 to using generic global_data setup

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@freescale.com>

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

diff --git a/arch/arm/lib/crt0_64.S b/arch/arm/lib/crt0_64.S
index 8b34e04dad..cef1c7171c 100644
--- a/arch/arm/lib/crt0_64.S
+++ b/arch/arm/lib/crt0_64.S
@@ -73,20 +73,11 @@ ENTRY(_main)
 	ldr	x0, =(CONFIG_SPL_STACK)
 #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