[U-Boot] [PATCH 2/2] spl: socfpga: stratix10: add hex file output for spl image

[Dalon L Westergreen]

On Mon, 2018-08-20 at 20:33 +0200, Marek Vasut wrote:
> On 08/20/2018 03:54 PM, Dalon Westergreen wrote:
> Stratix10 requires a hex image of the spl for boot.  The hex
> image is added to the FPGA configuration image and loaded to
> the processor memory by the configuration engine.
> 
> Signed-off-by: Dalon Westergreen <dwesterg at gmail.com>
> ---
>  scripts/Makefile.spl | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl
> index 76d08fd92b..c424f87e6e 100644
> --- a/scripts/Makefile.spl
> +++ b/scripts/Makefile.spl
> @@ -190,6 +190,7 @@ endif
>  ifdef CONFIG_ARCH_SOCFPGA
>  ALL-$(CONFIG_TARGET_SOCFPGA_GEN5)	+= $(obj)/$(SPL_BIN).sfp
>  ALL-$(CONFIG_TARGET_SOCFPGA_ARRIA10)	+= $(obj)/$(SPL_BIN).sfp
> +ALL-$(CONFIG_TARGET_SOCFPGA_STRATIX10)	+= $(obj)/$(SPL_BIN).hex
>  endif
>  
>  ifdef CONFIG_ARCH_SUNXI
> @@ -299,6 +300,15 @@ OBJCOPYFLAGS_u-boot-x86-16bit-spl.bin := -O binary -j .start16 -j .resetvec
>  $(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE
>  	$(call if_changed,objcopy)
>  
> +ifdef CONFIG_TARGET_SOCFPGA_STRATIX10
> +OBJCOPYFLAGS_$(SPL_BIN).hex = -I binary -O ihex --change-addresses 0xffe00000
> 
> Why is this --change-address needed ? This smells like a hack of some
> sort ...
> 
I believe the tool that uses this file expects this offset, that said i have not
tried using a hex file without this change address applied.  I will try without 
this, and see what happens.
> 
> +else
> +OBJCOPYFLAGS_$(SPL_BIN).hex = -I binary -O ihex
> +endif
> +
> +$(obj)/$(SPL_BIN).hex: $(obj)/$(SPL_BIN).bin FORCE
> +	$(call if_changed,objcopy)
> +
>  LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
>  
>  # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
> 
> 
> 
>