summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml')
-rw-r--r--Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml88
1 files changed, 88 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml b/Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml
new file mode 100644
index 000000000..b78535040
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml
@@ -0,0 +1,88 @@
+# 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:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ maximum: 256
+ description: number of inbound address translation windows
+ deprecated: true
+
+ num-ob-windows:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ maximum: 256
+ description: number of outbound address translation windows
+ deprecated: true
+
+required:
+ - reg
+ - reg-names
+ - compatible
+
+additionalProperties: true
+
+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";
+ };
+ };