[U-Boot] [PATCH 2/2] RFT: arm: Switch aarch64 to using generic global_data setup

[York Sun]

Sorry for top posting. Replying from OWA while traveling.

Tested on LS2085ARDB and LS2085AQDS.

Tested-by: York Sun <yorksun at freescale.com>

________________________________________
From: U-Boot <u-boot-bounces at lists.denx.de> on behalf of Simon Glass <sjg at chromium.org>
Sent: Monday, August 17, 2015 8:43 PM
To: U-Boot Mailing List
Cc: Tom Rini; Wood Scott-B07421; Thierry Reding; Sun York-R58495
Subject: [U-Boot] [PATCH 2/2] RFT: 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.

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

 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 98a906e..31fc3b4 100644
--- a/arch/arm/lib/crt0_64.S
+++ b/arch/arm/lib/crt0_64.S
@@ -66,19 +66,10 @@ 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

--
2.5.0.276.gf5e568e

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