linux-kernel - Re: [PATCH] powerpc/dts: fix not include DTC

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Date:   Wed, 07 Apr 2021 21:27:22 +1000
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Youlin Song <syl.loop@...il.com>, robh+dt@...nel.org,
        benh@...nel.crashing.org, paulus@...ba.org
Cc:     devicetree@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org, Youlin Song <syl.loop@...il.com>
Subject: Re: [PATCH] powerpc/dts: fix not include DTC_FLAGS

Youlin Song <syl.loop@...il.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@...il.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