linux-kernel - RE: [PATCH v7 1/2] PCI: xilinx-cpm: Add YAML schemas for Versal CPM Root Port

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Message-ID: <BYAPR02MB555924C79777E16E7F97BA0FA5BD0@BYAPR02MB5559.namprd02.prod.outlook.com>
Date:   Fri, 15 May 2020 05:38:47 +0000
From:   Bharat Kumar Gogada <bharatku@...inx.com>
To:     Bharat Kumar Gogada <bharatku@...inx.com>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     "lorenzo.pieralisi@....com" <lorenzo.pieralisi@....com>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        "robh@...nel.org" <robh@...nel.org>,
        Ravikiran Gummaluri <rgummal@...inx.com>
Subject: RE: [PATCH v7 1/2] PCI: xilinx-cpm: Add YAML schemas for Versal CPM
 Root Port

Hi Rob,

Can you please let us know if you have any inputs on this.

Regards,
Bharat

> -----Original Message-----
> From: Bharat Kumar Gogada <bharat.kumar.gogada@...inx.com>
> Sent: Thursday, May 7, 2020 5:29 PM
> To: linux-pci@...r.kernel.org; linux-kernel@...r.kernel.org
> Cc: lorenzo.pieralisi@....com; bhelgaas@...gle.com; robh@...nel.org;
> Ravikiran Gummaluri <rgummal@...inx.com>; Bharat Kumar Gogada
> <bharatku@...inx.com>
> Subject: [PATCH v7 1/2] PCI: xilinx-cpm: Add YAML schemas for Versal CPM
> Root Port
> 
> Add YAML schemas documentation for Versal CPM Root Port driver.
> 
> Signed-off-by: Bharat Kumar Gogada <bharat.kumar.gogada@...inx.com>
> ---
>  .../devicetree/bindings/pci/xilinx-versal-cpm.yaml | 105
> +++++++++++++++++++++
>  1 file changed, 105 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/pci/xilinx-versal-
> cpm.yaml
> 
> diff --git a/Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml
> b/Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml
> new file mode 100644
> index 0000000..5fc5c3f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml
> @@ -0,0 +1,105 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pci/xilinx-versal-cpm.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: CPM Host Controller device tree for Xilinx Versal SoCs
> +
> +maintainers:
> +  - Bharat Kumar Gogada <bharat.kumar.gogada@...inx.com>
> +
> +properties:
> +  compatible:
> +    const: xlnx,versal-cpm-host-1.00
> +
> +  "#address-cells":
> +    const: 3
> +
> +  "#size-cells":
> +    const: 2
> +
> +  reg:
> +    items:
> +      - description: Configuration space region and bridge registers.
> +      - description: CPM system level control and status registers.
> +
> +  reg-names:
> +    items:
> +      - const: cfg
> +      - const: cpm_slcr
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  msi-map:
> +    description:
> +      Maps a Requester ID to an MSI controller and associated MSI sideband
> data.
> +
> +  ranges:
> +    maxItems: 2
> +
> +  "#interrupt-cells":
> +    const: 1
> +
> +  interrupt-map-mask:
> +    description: Standard PCI IRQ mapping properties.
> +
> +  interrupt-map:
> +    description: Standard PCI IRQ mapping properties.
> +
> +  interrupt_controller:
> +    description: Interrupt controller child node.
> +
> +  bus-range:
> +    description: Range of bus numbers associated with this controller.
> +
> +required:
> +  - compatible
> +  - "#address-cells"
> +  - "#size-cells"
> +  - reg
> +  - reg-names
> +  - "#interrupt-cells"
> +  - interrupts
> +  - interrupt-parent
> +  - interrupt-map
> +  - interrupt-map-mask
> +  - ranges
> +  - bus-range
> +  - msi-map
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +
> +    versal {
> +               #address-cells = <2>;
> +               #size-cells = <2>;
> +               cpm_pcie: pci@...10000 {
> +                       compatible = "xlnx,versal-cpm-host-1.00";
> +                       #address-cells = <3>;
> +                       #interrupt-cells = <1>;
> +                       #size-cells = <2>;
> +                       interrupts = <0 72 4>;
> +                       interrupt-parent = <&gic>;
> +                       interrupt-map-mask = <0 0 0 7>;
> +                       interrupt-map = <0 0 0 1 &pcie_intc_0 0>,
> +                                       <0 0 0 2 &pcie_intc_0 1>,
> +                                       <0 0 0 3 &pcie_intc_0 2>,
> +                                       <0 0 0 4 &pcie_intc_0 3>;
> +                       bus-range = <0x00 0xff>;
> +                       ranges = <0x02000000 0x0 0xe0000000 0x0 0xe0000000 0x0
> 0x10000000>,
> +                                <0x43000000 0x80 0x00000000 0x80 0x00000000 0x0
> 0x80000000>;
> +                       msi-map = <0x0 &its_gic 0x0 0x10000>;
> +                       reg = <0x6 0x00000000 0x0 0x10000000>,
> +                             <0x0 0xfca10000 0x0 0x1000>;
> +                       reg-names = "cfg", "cpm_slcr";
> +                       pcie_intc_0: interrupt_controller {
> +                               #address-cells = <0>;
> +                               #interrupt-cells = <1>;
> +                               interrupt-controller ;
> +                       };
> +                };
> +    };
> --
> 2.7.4