--- /dev/null
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/socionext,uniphier-pcie.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Socionext UniPhier PCIe host controller
+
+description: |
+ UniPhier PCIe host controller is based on the Synopsys DesignWare
+ PCI core. It shares common features with the PCIe DesignWare core and
+ inherits common properties defined in
+ Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml.
+
+maintainers:
+ - Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
+
+allOf:
+ - $ref: /schemas/pci/snps,dw-pcie.yaml#
+
+properties:
+ compatible:
+ enum:
+ - socionext,uniphier-pcie
+
+ reg:
+ minItems: 3
+ maxItems: 4
+
+ reg-names:
+ minItems: 3
+ items:
+ - const: dbi
+ - const: link
+ - const: config
+ - const: atu
+
+ clocks:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ num-viewport: true
+
+ num-lanes: true
+
+ phys:
+ maxItems: 1
+
+ phy-names:
+ const: pcie-phy
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - clocks
+ - resets
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ pcie: pcie@66000000 {
+ compatible = "socionext,uniphier-pcie";
+ reg-names = "dbi", "link", "config";
+ reg = <0x66000000 0x1000>, <0x66010000 0x10000>, <0x2fff0000 0x10000>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ clocks = <&sys_clk 24>;
+ resets = <&sys_rst 24>;
+ num-lanes = <1>;
+ num-viewport = <1>;
+ bus-range = <0x0 0xff>;
+ device_type = "pci";
+ ranges = <0x81000000 0 0x00000000 0x2ffe0000 0 0x00010000>,
+ <0x82000000 0 0x00000000 0x20000000 0 0x0ffe0000>;
+ phy-names = "pcie-phy";
+ phys = <&pcie_phy>;
+ #interrupt-cells = <1>;
+ interrupt-names = "dma", "msi";
+ interrupts = <0 224 4>, <0 225 4>;
+ interrupt-map-mask = <0 0 0 7>;
+ interrupt-map = <0 0 0 1 &pcie_intc 0>,
+ <0 0 0 2 &pcie_intc 1>,
+ <0 0 0 3 &pcie_intc 2>,
+ <0 0 0 4 &pcie_intc 3>;
+
+ pcie_intc: legacy-interrupt-controller {
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 226 4>;
+ };
+ };
+++ /dev/null
-Socionext UniPhier PCIe host controller bindings
-
-This describes the devicetree bindings for PCIe host controller implemented
-on Socionext UniPhier SoCs.
-
-UniPhier PCIe host controller is based on the Synopsys DesignWare PCI core.
-It shares common functions with the PCIe DesignWare core driver and inherits
-common properties defined in
-Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml.
-
-Required properties:
-- compatible: Should be "socionext,uniphier-pcie".
-- reg: Specifies offset and length of the register set for the device.
- According to the reg-names, appropriate register sets are required.
-- reg-names: Must include the following entries:
- "dbi" - controller configuration registers
- "link" - SoC-specific glue layer registers
- "config" - PCIe configuration space
- "atu" - iATU registers for DWC version 4.80 or later
-- clocks: A phandle to the clock gate for PCIe glue layer including
- the host controller.
-- resets: A phandle to the reset line for PCIe glue layer including
- the host controller.
-- interrupts: A list of interrupt specifiers. According to the
- interrupt-names, appropriate interrupts are required.
-- interrupt-names: Must include the following entries:
- "dma" - DMA interrupt
- "msi" - MSI interrupt
-
-Optional properties:
-- phys: A phandle to generic PCIe PHY. According to the phy-names, appropriate
- phys are required.
-- phy-names: Must be "pcie-phy".
-
-Required sub-node:
-- legacy-interrupt-controller: Specifies interrupt controller for legacy PCI
- interrupts.
-
-Required properties for legacy-interrupt-controller:
-- interrupt-controller: identifies the node as an interrupt controller.
-- #interrupt-cells: specifies the number of cells needed to encode an
- interrupt source. The value must be 1.
-- interrupt-parent: Phandle to the parent interrupt controller.
-- interrupts: An interrupt specifier for legacy interrupt.
-
-Example:
-
- pcie: pcie@66000000 {
- compatible = "socionext,uniphier-pcie", "snps,dw-pcie";
- status = "disabled";
- reg-names = "dbi", "link", "config";
- reg = <0x66000000 0x1000>, <0x66010000 0x10000>,
- <0x2fff0000 0x10000>;
- #address-cells = <3>;
- #size-cells = <2>;
- clocks = <&sys_clk 24>;
- resets = <&sys_rst 24>;
- num-lanes = <1>;
- num-viewport = <1>;
- bus-range = <0x0 0xff>;
- device_type = "pci";
- ranges =
- /* downstream I/O */
- <0x81000000 0 0x00000000 0x2ffe0000 0 0x00010000
- /* non-prefetchable memory */
- 0x82000000 0 0x00000000 0x20000000 0 0x0ffe0000>;
- #interrupt-cells = <1>;
- interrupt-names = "dma", "msi";
- interrupts = <0 224 4>, <0 225 4>;
- interrupt-map-mask = <0 0 0 7>;
- interrupt-map = <0 0 0 1 &pcie_intc 0>, /* INTA */
- <0 0 0 2 &pcie_intc 1>, /* INTB */
- <0 0 0 3 &pcie_intc 2>, /* INTC */
- <0 0 0 4 &pcie_intc 3>; /* INTD */
-
- pcie_intc: legacy-interrupt-controller {
- interrupt-controller;
- #interrupt-cells = <1>;
- interrupt-parent = <&gic>;
- interrupts = <0 226 4>;
- };
- };
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