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 8b34e04..cef1c71 100644 (file)
--- 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