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Wed, 27 Aug 2025 19:17:03 -0700 (PDT) Received: from localhost.localdomain ([122.8.183.87]) by smtp.gmail.com with ESMTPSA id 5614622812f47-437967dbedasm2276940b6e.13.2025.08.27.19.17.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 Aug 2025 19:17:02 -0700 (PDT) From: Chen Wang To: kwilczynski@kernel.org, u.kleine-koenig@baylibre.com, aou@eecs.berkeley.edu, alex@ghiti.fr, arnd@arndb.de, bwawrzyn@cisco.com, bhelgaas@google.com, unicorn_wang@outlook.com, conor+dt@kernel.org, 18255117159@163.com, inochiama@gmail.com, kishon@kernel.org, krzk+dt@kernel.org, lpieralisi@kernel.org, mani@kernel.org, palmer@dabbelt.com, paul.walmsley@sifive.com, robh@kernel.org, s-vadapalli@ti.com, tglx@linutronix.de, thomas.richard@bootlin.com, sycamoremoon376@gmail.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-riscv@lists.infradead.org, sophgo@lists.linux.dev, rabenda.cn@gmail.com, chao.wei@sophgo.com, xiaoguang.xing@sophgo.com, fengchun.li@sophgo.com Subject: [PATCH 1/5] dt-bindings: pci: Add Sophgo SG2042 PCIe host Date: Thu, 28 Aug 2025 10:16:54 +0800 Message-Id: X-Mailer: git-send-email 2.34.1 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" From: Chen Wang Add binding for Sophgo SG2042 PCIe host controller. Signed-off-by: Chen Wang Reviewed-by: Rob Herring (Arm) --- .../bindings/pci/sophgo,sg2042-pcie-host.yaml | 66 +++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/sophgo,sg2042-pci= e-host.yaml diff --git a/Documentation/devicetree/bindings/pci/sophgo,sg2042-pcie-host.= yaml b/Documentation/devicetree/bindings/pci/sophgo,sg2042-pcie-host.yaml new file mode 100644 index 000000000000..2cca3d113d11 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/sophgo,sg2042-pcie-host.yaml @@ -0,0 +1,66 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pci/sophgo,sg2042-pcie-host.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Sophgo SG2042 PCIe Host (Cadence PCIe Wrapper) + +description: + Sophgo SG2042 PCIe host controller is based on the Cadence PCIe core. + +maintainers: + - Chen Wang + +properties: + compatible: + const: sophgo,sg2042-pcie-host + + reg: + maxItems: 2 + + reg-names: + items: + - const: reg + - const: cfg + + vendor-id: + const: 0x1f1c + + device-id: + const: 0x2042 + + msi-parent: true + +allOf: + - $ref: cdns-pcie-host.yaml# + +required: + - compatible + - reg + - reg-names + - vendor-id + - device-id + +unevaluatedProperties: false + +examples: + - | + #include + + pcie@62000000 { + compatible =3D "sophgo,sg2042-pcie-host"; + device_type =3D "pci"; + reg =3D <0x62000000 0x00800000>, + <0x48000000 0x00001000>; + reg-names =3D "reg", "cfg"; + #address-cells =3D <3>; + #size-cells =3D <2>; + ranges =3D <0x81000000 0 0x00000000 0xde000000 0 0x00010000>, + <0x82000000 0 0xd0400000 0xd0400000 0 0x0d000000>; + bus-range =3D <0x00 0xff>; + vendor-id =3D <0x1f1c>; + device-id =3D <0x2042>; + cdns,no-bar-match-nbits =3D <48>; + msi-parent =3D <&msi>; + }; --=20 2.34.1