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