In my test, DTC_FLAGS in arch/powerpc/boot/Makefile is not to work,I will send V2 to removing it.

Michael Ellerman <mpe@ellerman.id.au> 于2021年4月7日周三 下午7:27写道:
Youlin Song <syl.loop@gmail.com> writes:
> I wanted to build the fsl dts in my machine and found that
> the dtb have not extra space,so uboot will cause about
> FDT_ERR_NOSPACE issue.
>
> Signed-off-by: Youlin Song <syl.loop@gmail.com>
> ---
>  arch/powerpc/boot/dts/Makefile | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/arch/powerpc/boot/dts/Makefile b/arch/powerpc/boot/dts/Makefile
> index fb335d05aae8..c21165c0cd76 100644
> --- a/arch/powerpc/boot/dts/Makefile
> +++ b/arch/powerpc/boot/dts/Makefile
> @@ -2,5 +2,6 @@

>  subdir-y += fsl

> +DTC_FLAGS   ?= -p 1024
>  dtstree              := $(srctree)/$(src)
>  dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts))

I guess that was missed in 1acf1cf8638a ("powerpc: build .dtb files in dts directory").

Which I think means the assignment to DTC_FLAGS in
arch/powerpc/boot/Makefile is not needed anymore.

Can you send a v2 removing that assignment and explaining that's what
happened?

cheers