91 lines
2.2 KiB
YAML
91 lines
2.2 KiB
YAML
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# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/pci/snps,dw-pcie-ep.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Synopsys DesignWare PCIe endpoint interface
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maintainers:
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- Jingoo Han <jingoohan1@gmail.com>
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- Gustavo Pimentel <gustavo.pimentel@synopsys.com>
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description: |
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Synopsys DesignWare PCIe host controller endpoint
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allOf:
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- $ref: /schemas/pci/pci-ep.yaml#
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properties:
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compatible:
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anyOf:
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- {}
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- const: snps,dw-pcie-ep
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reg:
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description: |
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It should contain Data Bus Interface (dbi) and config registers for all
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versions.
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For designware core version >= 4.80, it may contain ATU address space.
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minItems: 2
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maxItems: 4
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reg-names:
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minItems: 2
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maxItems: 4
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items:
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enum: [dbi, dbi2, config, atu, addr_space, link, atu_dma, appl]
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reset-gpio:
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description: GPIO pin number of PERST# signal
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maxItems: 1
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deprecated: true
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reset-gpios:
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description: GPIO controlled connection to PERST# signal
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maxItems: 1
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snps,enable-cdm-check:
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type: boolean
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description: |
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This is a boolean property and if present enables
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automatic checking of CDM (Configuration Dependent Module) registers
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for data corruption. CDM registers include standard PCIe configuration
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space registers, Port Logic registers, DMA and iATU (internal Address
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Translation Unit) registers.
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num-ib-windows:
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description: number of inbound address translation windows
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maxItems: 1
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deprecated: true
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num-ob-windows:
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description: number of outbound address translation windows
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maxItems: 1
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deprecated: true
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max-functions:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: maximum number of functions that can be configured
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required:
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- reg
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- reg-names
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- compatible
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unevaluatedProperties: false
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examples:
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- |
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bus {
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#address-cells = <1>;
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#size-cells = <1>;
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pcie-ep@dfd00000 {
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compatible = "snps,dw-pcie-ep";
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reg = <0xdfc00000 0x0001000>, /* IP registers 1 */
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<0xdfc01000 0x0001000>, /* IP registers 2 */
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<0xd0000000 0x2000000>; /* Configuration space */
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reg-names = "dbi", "dbi2", "addr_space";
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};
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};
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