Hi Andre,
On Wed, May 4, 2016 at 2:15 PM, Andre Przywara <andre.przyw...@arm.com>
wrote:
> The Allwinner provided boot0 boot loader requires a header before the
> U-Boot binary to both check its validity and to find other blobs to
> load. There is a tool called boot0img which fills the header
> appropriately.
> Reserve some space at the beginning of the binary to later hold the
> header if needed.
> Please note that the header is jumped over already by U-Boot anyway,
> so filling the header is optional and can be skipped if for instance
> boot0 is not used.
>
> Signed-off-by: Andre Przywara <andre.przyw...@arm.com>
> ---
> arch/arm/cpu/armv8/start.S | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/arch/arm/cpu/armv8/start.S b/arch/arm/cpu/armv8/start.S
> index deb44a8..b4c4867 100644
> --- a/arch/arm/cpu/armv8/start.S
> +++ b/arch/arm/cpu/armv8/start.S
> @@ -21,6 +21,9 @@
> _start:
> b reset
>
> +#ifdef CONFIG_ARCH_SUNXI
> + .space 0x5fc /* can be filled with a boot0 header if needed */
> +#endif
>
NAK !
this is NOT the _only_ board that would need this, so I propose:
#ifdef CONFIG_RESERVE_SPACE_BOOT0
.space CONFIG_RESERVE_SPACE_BOOT0
#endif
Thanks, Steve
.align 3
>
> .globl _TEXT_BASE
> --
> 2.7.3
>
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