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arm: Switch aarch64 to using generic global_data setup

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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>
This commit is contained in:
Simon Glass 2015-10-19 06:49:59 -06:00 committed by Tom Rini
parent 518f0bccc4
commit 931bec31b4
1 changed files with 3 additions and 12 deletions
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15
arch/arm/lib/crt0_64.S
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@ -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