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-0500 From: Frank Li To: Vincent Guittot Cc: chester62515@gmail.com, mbrugger@suse.com, ghennadi.procopciuc@oss.nxp.com, s32@nxp.com, bhelgaas@google.com, jingoohan1@gmail.com, lpieralisi@kernel.org, kwilczynski@kernel.org, mani@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, Ionut.Vicovan@nxp.com, larisa.grigore@nxp.com, Ghennadi.Procopciuc@nxp.com, ciprianmarian.costea@nxp.com, bogdan.hamciuc@nxp.com, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, cassel@kernel.org Subject: Re: [PATCH 1/4 v5] dt-bindings: PCI: s32g: Add NXP PCIe controller Message-ID: References: <20251118160238.26265-1-vincent.guittot@linaro.org> <20251118160238.26265-2-vincent.guittot@linaro.org> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251118160238.26265-2-vincent.guittot@linaro.org> X-ClientProxiedBy: SJ0PR05CA0191.namprd05.prod.outlook.com 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linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Nov 18, 2025 at 05:02:35PM +0100, Vincent Guittot wrote: > Describe the PCIe host controller available on the S32G platforms. > > Co-developed-by: Ionut Vicovan > Signed-off-by: Ionut Vicovan > Co-developed-by: Bogdan-Gabriel Roman > Signed-off-by: Bogdan-Gabriel Roman > Co-developed-by: Larisa Grigore > Signed-off-by: Larisa Grigore > Co-developed-by: Ghennadi Procopciuc > Signed-off-by: Ghennadi Procopciuc > Co-developed-by: Ciprian Marian Costea > Signed-off-by: Ciprian Marian Costea > Co-developed-by: Bogdan Hamciuc > Signed-off-by: Bogdan Hamciuc > Signed-off-by: Vincent Guittot > --- Reviewed-by: Frank Li > .../bindings/pci/nxp,s32g-pcie.yaml | 130 ++++++++++++++++++ > 1 file changed, 130 insertions(+) > create mode 100644 Documentation/devicetree/bindings/pci/nxp,s32g-pcie.yaml > > diff --git a/Documentation/devicetree/bindings/pci/nxp,s32g-pcie.yaml b/Documentation/devicetree/bindings/pci/nxp,s32g-pcie.yaml > new file mode 100644 > index 000000000000..da3106dfcf58 > --- /dev/null > +++ b/Documentation/devicetree/bindings/pci/nxp,s32g-pcie.yaml > @@ -0,0 +1,130 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/pci/nxp,s32g-pcie.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: NXP S32G2xxx/S32G3xxx PCIe Root Complex controller > + > +maintainers: > + - Bogdan Hamciuc > + - Ionut Vicovan > + > +description: > + This PCIe controller is based on the Synopsys DesignWare PCIe IP. > + The S32G SoC family has two PCIe controllers, which can be configured as > + either Root Complex or Endpoint. > + > +properties: > + compatible: > + oneOf: > + - enum: > + - nxp,s32g2-pcie > + - items: > + - const: nxp,s32g3-pcie > + - const: nxp,s32g2-pcie > + > + reg: > + maxItems: 6 > + > + reg-names: > + items: > + - const: dbi > + - const: dbi2 > + - const: atu > + - const: dma > + - const: ctrl > + - const: config > + > + interrupts: > + minItems: 1 > + maxItems: 2 > + > + interrupt-names: > + items: > + - const: msi > + - const: dma > + minItems: 1 > + > + pcie@0: > + description: > + Describe the S32G Root Port. > + type: object > + $ref: /schemas/pci/pci-pci-bridge.yaml# > + > + properties: > + reg: > + maxItems: 1 > + > + phys: > + maxItems: 1 > + > + required: > + - reg > + - phys > + > + unevaluatedProperties: false > + > +required: > + - compatible > + - reg > + - reg-names > + - interrupts > + - interrupt-names > + - ranges > + - pcie@0 > + > +allOf: > + - $ref: /schemas/pci/snps,dw-pcie.yaml# > + > +unevaluatedProperties: false > + > +examples: > + - | > + #include > + #include > + > + bus { > + #address-cells = <2>; > + #size-cells = <2>; > + > + pcie@40400000 { > + compatible = "nxp,s32g3-pcie", "nxp,s32g2-pcie"; > + reg = <0x00 0x40400000 0x0 0x00001000>, /* dbi registers */ > + <0x00 0x40420000 0x0 0x00001000>, /* dbi2 registers */ > + <0x00 0x40460000 0x0 0x00001000>, /* atu registers */ > + <0x00 0x40470000 0x0 0x00001000>, /* dma registers */ > + <0x00 0x40481000 0x0 0x000000f8>, /* ctrl registers */ > + <0x5f 0xffffe000 0x0 0x00002000>; /* config space */ > + reg-names = "dbi", "dbi2", "atu", "dma", "ctrl", "config"; > + dma-coherent; > + #address-cells = <3>; > + #size-cells = <2>; > + device_type = "pci"; > + ranges = > + <0x81000000 0x0 0x00000000 0x5f 0xfffe0000 0x0 0x00010000>, > + <0x82000000 0x0 0x00000000 0x58 0x00000000 0x0 0x80000000>, > + <0x82000000 0x1 0x00000000 0x59 0x00000000 0x6 0xfffe0000>; > + > + bus-range = <0x0 0xff>; > + interrupts = , > + ; > + interrupt-names = "msi", "dma"; > + #interrupt-cells = <1>; > + interrupt-map-mask = <0 0 0 0x7>; > + interrupt-map = <0 0 0 1 &gic 0 0 GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>, > + <0 0 0 2 &gic 0 0 GIC_SPI 129 IRQ_TYPE_LEVEL_HIGH>, > + <0 0 0 3 &gic 0 0 GIC_SPI 130 IRQ_TYPE_LEVEL_HIGH>, > + <0 0 0 4 &gic 0 0 GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>; > + > + pcie@0 { > + reg = <0x0 0x0 0x0 0x0 0x0>; > + #address-cells = <3>; > + #size-cells = <2>; > + ranges; > + > + device_type = "pci"; > + phys = <&serdes0 PHY_TYPE_PCIE 0 0>; > + }; > + }; > + }; > -- > 2.43.0 >