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Message-ID: <20240304054932.GB2647@thinkpad>
Date: Mon, 4 Mar 2024 11:19:32 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To: Abel Vesa <abel.vesa@...aro.org>
Cc: Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konrad.dybcio@...aro.org>,
Lorenzo Pieralisi <lpieralisi@...nel.org>,
Krzysztof Wilczyński <kw@...ux.com>,
Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>, linux-pci@...r.kernel.org,
linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org
Subject: Re: [PATCH v4 1/2] dt-bindings: PCI: qcom: Document the X1E80100
PCIe Controller
On Fri, Mar 01, 2024 at 06:59:01PM +0200, Abel Vesa wrote:
> Add dedicated schema for the PCIe controllers found on X1E80100.
>
> Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
- Mani
> ---
> .../bindings/pci/qcom,pcie-x1e80100.yaml | 165 +++++++++++++++++++++
> 1 file changed, 165 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie-x1e80100.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie-x1e80100.yaml
> new file mode 100644
> index 000000000000..1074310a8e7a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pci/qcom,pcie-x1e80100.yaml
> @@ -0,0 +1,165 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pci/qcom,pcie-x1e80100.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm X1E80100 PCI Express Root Complex
> +
> +maintainers:
> + - Bjorn Andersson <andersson@...nel.org>
> + - Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
> +
> +description:
> + Qualcomm X1E80100 SoC (and compatible) PCIe root complex controller is based on
> + the Synopsys DesignWare PCIe IP.
> +
> +properties:
> + compatible:
> + const: qcom,pcie-x1e80100
> +
> + reg:
> + minItems: 5
> + maxItems: 6
> +
> + reg-names:
> + minItems: 5
> + items:
> + - const: parf # Qualcomm specific registers
> + - const: dbi # DesignWare PCIe registers
> + - const: elbi # External local bus interface registers
> + - const: atu # ATU address space
> + - const: config # PCIe configuration space
> + - const: mhi # MHI registers
> +
> + clocks:
> + minItems: 7
> + maxItems: 7
> +
> + clock-names:
> + items:
> + - const: aux # Auxiliary clock
> + - const: cfg # Configuration clock
> + - const: bus_master # Master AXI clock
> + - const: bus_slave # Slave AXI clock
> + - const: slave_q2a # Slave Q2A clock
> + - const: noc_aggr # Aggre NoC PCIe AXI clock
> + - const: cnoc_sf_axi # Config NoC PCIe1 AXI clock
> +
> + interrupts:
> + minItems: 8
> + maxItems: 8
> +
> + interrupt-names:
> + items:
> + - const: msi0
> + - const: msi1
> + - const: msi2
> + - const: msi3
> + - const: msi4
> + - const: msi5
> + - const: msi6
> + - const: msi7
> +
> + resets:
> + minItems: 1
> + maxItems: 2
> +
> + reset-names:
> + minItems: 1
> + items:
> + - const: pci # PCIe core reset
> + - const: link_down # PCIe link down reset
> +
> +allOf:
> + - $ref: qcom,pcie-common.yaml#
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/qcom,x1e80100-gcc.h>
> + #include <dt-bindings/gpio/gpio.h>
> + #include <dt-bindings/interconnect/qcom,x1e80100-rpmh.h>
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> + soc {
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + pcie@...8000 {
> + compatible = "qcom,pcie-x1e80100";
> + reg = <0 0x01c08000 0 0x3000>,
> + <0 0x7c000000 0 0xf1d>,
> + <0 0x7c000f40 0 0xa8>,
> + <0 0x7c001000 0 0x1000>,
> + <0 0x7c100000 0 0x100000>,
> + <0 0x01c0b000 0 0x1000>;
> + reg-names = "parf", "dbi", "elbi", "atu", "config", "mhi";
> + ranges = <0x01000000 0x0 0x00000000 0x0 0x60200000 0x0 0x100000>,
> + <0x02000000 0x0 0x60300000 0x0 0x60300000 0x0 0x3d00000>;
> +
> + bus-range = <0x00 0xff>;
> + device_type = "pci";
> + linux,pci-domain = <0>;
> + num-lanes = <2>;
> +
> + #address-cells = <3>;
> + #size-cells = <2>;
> +
> + clocks = <&gcc GCC_PCIE_4_AUX_CLK>,
> + <&gcc GCC_PCIE_4_CFG_AHB_CLK>,
> + <&gcc GCC_PCIE_4_MSTR_AXI_CLK>,
> + <&gcc GCC_PCIE_4_SLV_AXI_CLK>,
> + <&gcc GCC_PCIE_4_SLV_Q2A_AXI_CLK>,
> + <&gcc GCC_CFG_NOC_PCIE_ANOC_NORTH_AHB_CLK>,
> + <&gcc GCC_CNOC_PCIE_NORTH_SF_AXI_CLK>;
> + clock-names = "aux",
> + "cfg",
> + "bus_master",
> + "bus_slave",
> + "slave_q2a",
> + "noc_aggr",
> + "cnoc_sf_axi";
> +
> + dma-coherent;
> +
> + interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-names = "msi0", "msi1", "msi2", "msi3",
> + "msi4", "msi5", "msi6", "msi7";
> + #interrupt-cells = <1>;
> + interrupt-map-mask = <0 0 0 0x7>;
> + interrupt-map = <0 0 0 1 &intc 0 0 0 149 IRQ_TYPE_LEVEL_HIGH>, /* int_a */
> + <0 0 0 2 &intc 0 0 0 150 IRQ_TYPE_LEVEL_HIGH>, /* int_b */
> + <0 0 0 3 &intc 0 0 0 151 IRQ_TYPE_LEVEL_HIGH>, /* int_c */
> + <0 0 0 4 &intc 0 0 0 152 IRQ_TYPE_LEVEL_HIGH>; /* int_d */
> +
> + interconnects = <&pcie_noc MASTER_PCIE_4 0 &mc_virt SLAVE_EBI1 0>,
> + <&gem_noc MASTER_APPSS_PROC 0 &cnoc_main SLAVE_PCIE_4 0>;
> + interconnect-names = "pcie-mem", "cpu-pcie";
> +
> + iommu-map = <0x0 &apps_smmu 0x1400 0x1>,
> + <0x100 &apps_smmu 0x1401 0x1>;
> +
> + phys = <&pcie4_phy>;
> + phy-names = "pciephy";
> +
> + pinctrl-0 = <&pcie0_default_state>;
> + pinctrl-names = "default";
> +
> + power-domains = <&gcc GCC_PCIE_4_GDSC>;
> +
> + resets = <&gcc GCC_PCIE_4_BCR>;
> + reset-names = "pci";
> +
> + perst-gpios = <&tlmm 94 GPIO_ACTIVE_LOW>;
> + wake-gpios = <&tlmm 96 GPIO_ACTIVE_HIGH>;
> + };
> + };
>
> --
> 2.34.1
>
--
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