On Aug 17, 2015, at 8:43 PM, Simon Glass sjg@chromium.org wrote:
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@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
Let me try again. Previous reply went to a separated thread in patchwork.
Tested on LS2085ARDB and LS2085AQDS (armv8 SoC).
Tested-by: York Sun yorksun@freescale.com