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[87.4.238.14]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ac314aa5a46sm1057645266b.181.2025.03.19.14.51.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Mar 2025 14:51:35 -0700 (PDT) From: Andrea della Porta To: Andrea della Porta , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Florian Fainelli , Broadcom internal kernel review list , Lorenzo Pieralisi , Krzysztof Wilczynski , Manivannan Sadhasivam , Bjorn Helgaas , Linus Walleij , Catalin Marinas , Will Deacon , Bartosz Golaszewski , Derek Kiernan , Dragan Cvetic , Arnd Bergmann , Greg Kroah-Hartman , Saravana Kannan , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-gpio@vger.kernel.org, Masahiro Yamada , Stefan Wahren , Herve Codina , Luca Ceresoli , Thomas Petazzoni , Andrew Lunn , Phil Elwell , Dave Stevenson , kernel-list@raspberrypi.com Subject: [PATCH v8 10/13] arm64: dts: Add overlay for RP1 device Date: Wed, 19 Mar 2025 22:52:31 +0100 Message-ID: X-Mailer: git-send-email 2.44.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Define the RP1 node in an overlay. The inclusion tree is as follow (the arrow points to the includer): rp1.dtso ^ | rp1-common.dtsi ----> rp1-nexus.dtsi Signed-off-by: Andrea della Porta --- This patch can be considered optional, since it fills just the second scenario as detailed in [1], which is the RP1 DT node loaded from a dtb overlay by the FW at early boot stage. This may be useful for debug purpose, but as such not strictly necessary. [1] https://lore.kernel.org/all/CAMEGJJ0f4YUgdWBhxvQ_dquZHztve9KO7pvQjoDWJ3= =3Dzd3cgcg@mail.gmail.com/#t --- arch/arm64/boot/dts/broadcom/Makefile | 3 ++- arch/arm64/boot/dts/broadcom/rp1.dtso | 11 +++++++++++ 2 files changed, 13 insertions(+), 1 deletion(-) create mode 100644 arch/arm64/boot/dts/broadcom/rp1.dtso diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/br= oadcom/Makefile index 4836c6da5bee..58293f9c16ab 100644 --- a/arch/arm64/boot/dts/broadcom/Makefile +++ b/arch/arm64/boot/dts/broadcom/Makefile @@ -13,7 +13,8 @@ dtb-$(CONFIG_ARCH_BCM2835) +=3D bcm2711-rpi-400.dtb \ bcm2837-rpi-3-b.dtb \ bcm2837-rpi-3-b-plus.dtb \ bcm2837-rpi-cm3-io3.dtb \ - bcm2837-rpi-zero-2-w.dtb + bcm2837-rpi-zero-2-w.dtb \ + rp1.dtbo =20 subdir-y +=3D bcmbca subdir-y +=3D northstar2 diff --git a/arch/arm64/boot/dts/broadcom/rp1.dtso b/arch/arm64/boot/dts/br= oadcom/rp1.dtso new file mode 100644 index 000000000000..ab4f146d22c0 --- /dev/null +++ b/arch/arm64/boot/dts/broadcom/rp1.dtso @@ -0,0 +1,11 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) + +/dts-v1/; +/plugin/; + +&pcie2 { + #address-cells =3D <3>; + #size-cells =3D <2>; + + #include "rp1-nexus.dtsi" +}; --=20 2.35.3