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Mon, 14 Apr 2025 13:38:31 +0200 Message-ID: Date: Mon, 14 Apr 2025 13:38:29 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 10/13] arm64: dts: Add overlay for RP1 device 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 , Herve Codina , Luca Ceresoli , Thomas Petazzoni , Andrew Lunn , Phil Elwell , Dave Stevenson , kernel-list@raspberrypi.com References: Content-Language: en-US From: Stefan Wahren Autocrypt: addr=wahrenst@gmx.net; 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Could you please add "broadcom:" to the subject? Am 19.03.25 um 22:52 schrieb Andrea della Porta: > 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_dquZHztve9KO7pvQjoD= WJ3=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= /broadcom/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= /broadcom/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" > +};