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

From: Bharat Kumar Gogada
Date: Thu May 07 2020 - 07:59:48 EST


Add YAML schemas documentation for Versal CPM Root Port driver.

Signed-off-by: Bharat Kumar Gogada <bharat.kumar.gogada@xxxxxxxxxx>
---
.../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@xxxxxxxxxx>
+
+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@fca10000 {
+ 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