From: Bjorn Andersson <andersson@kernel.org>
To: Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: Eric Chanudet <echanude@redhat.com>,
Andy Gross <agross@kernel.org>,
Konrad Dybcio <konrad.dybcio@linaro.org>,
linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: sa8775p: add symbols to dtb
Date: Mon, 13 Mar 2023 05:49:23 -0700 [thread overview]
Message-ID: <20230313124923.iwaknvrnitqal3wa@ripper> (raw)
In-Reply-To: <20230309233945.1199358-1-echanude@redhat.com>
On Thu, Mar 09, 2023 at 06:39:48PM -0500, Eric Chanudet wrote:
> ABL uses the __symbols__ section to process the DTB before passing it
> forward. Without it, the bootstrap is interrupted.
>
> Signed-off-by: Eric Chanudet <echanude@redhat.com>
@Rob, @Krzysztof, it seems useful to be able to use the upstream
generated DTBs with overlays.
Do you suggest that we enable this on a per-board basis when it's being
requested, across all devices, or tell the users that they have to
re-generate the dtbs themselves?
Thanks,
Bjorn
> ---
> Depends on initial sa8775p-ride.dts:
> https://lore.kernel.org/all/20230214092713.211054-3-brgl@bgdev.pl/
>
> arch/arm64/boot/dts/qcom/Makefile | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
> index b63cd1861e68..72e85ab31d74 100644
> --- a/arch/arm64/boot/dts/qcom/Makefile
> +++ b/arch/arm64/boot/dts/qcom/Makefile
> @@ -1,4 +1,8 @@
> # SPDX-License-Identifier: GPL-2.0
> +
> +# Enable support for device-tree overlays required on sa8775p-ride.
> +DTC_FLAGS_sa8775p-ride := -@
> +
> dtb-$(CONFIG_ARCH_QCOM) += apq8016-sbc.dtb
> dtb-$(CONFIG_ARCH_QCOM) += apq8094-sony-xperia-kitakami-karin_windy.dtb
> dtb-$(CONFIG_ARCH_QCOM) += apq8096-db820c.dtb
> --
> 2.39.1
>
next prev parent reply other threads:[~2023-03-13 12:46 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-09 23:39 [PATCH] arm64: dts: qcom: sa8775p: add symbols to dtb Eric Chanudet
2023-03-09 23:47 ` Konrad Dybcio
2023-03-14 4:48 ` Prasad Sodagudi
2023-03-14 9:59 ` Konrad Dybcio
2023-03-16 6:55 ` Krzysztof Kozlowski
2023-03-13 12:49 ` Bjorn Andersson [this message]
2023-03-14 15:14 ` Rob Herring
2023-03-22 2:55 ` Bjorn Andersson
2023-03-24 17:19 ` Eric Chanudet
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