[U-Boot] [PATCH] kbuild: Do not append dtb for OF_EMBED case

[Michal Simek]

Hi Masahiro,

On 28.4.2016 07:54, Masahiro Yamada wrote:
> Hi Michal,
> (+cc Simon)
> 
> 2016-04-27 21:28 GMT+09:00 Michal Simek <michal.simek at xilinx.com>:
>> dtb is already included in binary that's why there is no need to replace
>> u-boot-spl.bin with u-boot-spl-dtb.bin. This is only needed for
>> OF_SEPARATE is enabled. Only copy -nodtb.bin version which is straight
>> output from objcopy -O binary.
> 
> Correct.
> 
> (But, as you know, fdtgrep does not work for OF_EMBED,
> so this is only useful when SPL has enough memory footprint.)

That's fine and it is reasonable limitation.



>> Signed-off-by: Michal Simek <michal.simek at xilinx.com>
>> ---
>>
>>  scripts/Makefile.spl | 5 +++++
>>  1 file changed, 5 insertions(+)
>>
>> diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl
>> index 44242842db31..79c680c1d62f 100644
>> --- a/scripts/Makefile.spl
>> +++ b/scripts/Makefile.spl
>> @@ -170,12 +170,17 @@ $(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin $(obj)/$(SPL_BIN)-pad.bin
>>                 $(obj)/$(SPL_BIN).dtb FORCE
>>         $(call if_changed,cat)
>>
>> +ifeq ($(CONFIG_OF_SEPARATE),y)
>>  $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
>>         $(call if_changed,copy)
>>  else
>>  $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
>>         $(call if_changed,copy)
>>  endif
>> +else
>> +$(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
>> +       $(call if_changed,copy)
>> +endif
>>
>>  # Create a file that pads from the end of u-boot-spl-nodtb.bin to bss_end
>>  $(obj)/$(SPL_BIN)-pad.bin: $(obj)/$(SPL_BIN)
> 
> 
> 
> The code is duplicated for
>  - CONFIG_SPL_OF_CONTROL=y && CONFIG_OF_SEPARATE=n
>  - CONFIG_SPL_OF_CONTROL=n
> 
> Could you refactor a bit like follows?

TBH: I was expecting that there will be better solution for it.

> 
> 
> ifeq ($(CONFIG_SPL_OF_CONTROL)$(CONFIG_OF_SEPARATE),yy)
> $(obj)/$(SPL_BIN)-dtb.bin: $(obj)/$(SPL_BIN)-nodtb.bin
> $(obj)/$(SPL_BIN)-pad.bin \
>                           $(obj)/$(SPL_BIN).dtb FORCE
>         $(call if_changed,cat)
> 
> $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-dtb.bin FORCE
>         $(call if_changed,copy)
> else
> $(obj)/$(SPL_BIN).bin: $(obj)/$(SPL_BIN)-nodtb.bin FORCE
>         $(call if_changed,copy)
> endif
> 

Let me retest and send v2.

Thanks,
Michal

-- 
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Microblaze cpu - http://www.monstr.eu/fdt/
Maintainer of Linux kernel - Xilinx Zynq ARM architecture
Microblaze U-BOOT custodian and responsible for u-boot arm zynq platform



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