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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/pci/xlnx,nwl-pcie.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Xilinx NWL PCIe Root Port Bridge
maintainers:
- Thippeswamy Havalige <thippeswamy.havalige@amd.com>
allOf:
- $ref: /schemas/pci/pci-bus.yaml#
- $ref: /schemas/interrupt-controller/msi-controller.yaml#
properties:
compatible:
const: xlnx,nwl-pcie-2.11
reg:
items:
- description: PCIe bridge registers location.
- description: PCIe Controller registers location.
- description: PCIe Configuration space region.
reg-names:
items:
- const: breg
- const: pcireg
- const: cfg
interrupts:
items:
- description: interrupt asserted when miscellaneous interrupt is received
- description: unused interrupt(dummy)
- description: interrupt asserted when a legacy interrupt is received
- description: msi1 interrupt asserted when an MSI is received
- description: msi0 interrupt asserted when an MSI is received
interrupt-names:
items:
- const: misc
- const: dummy
- const: intx
- const: msi1
- const: msi0
interrupt-map-mask:
items:
- const: 0
- const: 0
- const: 0
- const: 7
"#interrupt-cells":
const: 1
msi-parent:
description: MSI controller the device is capable of using.
interrupt-map:
maxItems: 4
power-domains:
maxItems: 1
iommus:
maxItems: 1
dma-coherent:
description: optional, only needed if DMA operations are coherent.
clocks:
maxItems: 1
description: optional, input clock specifier.
legacy-interrupt-controller:
description: Interrupt controller node for handling legacy PCI interrupts.
type: object
properties:
"#address-cells":
const: 0
"#interrupt-cells":
const: 1
"interrupt-controller": true
required:
- "#address-cells"
- "#interrupt-cells"
- interrupt-controller
additionalProperties: false
required:
- compatible
- reg
- reg-names
- interrupts
- "#interrupt-cells"
- interrupt-map
- interrupt-map-mask
- msi-controller
- power-domains
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/power/xlnx-zynqmp-power.h>
soc {
#address-cells = <2>;
#size-cells = <2>;
nwl_pcie: pcie@fd0e0000 {
compatible = "xlnx,nwl-pcie-2.11";
reg = <0x0 0xfd0e0000 0x0 0x1000>,
<0x0 0xfd480000 0x0 0x1000>,
<0x80 0x00000000 0x0 0x1000000>;
reg-names = "breg", "pcireg", "cfg";
ranges = <0x02000000 0x0 0xe0000000 0x0 0xe0000000 0x0 0x10000000>,
<0x43000000 0x00000006 0x0 0x00000006 0x0 0x00000002 0x0>;
#address-cells = <3>;
#size-cells = <2>;
#interrupt-cells = <1>;
msi-controller;
device_type = "pci";
interrupt-parent = <&gic>;
interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 116 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 115 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "misc", "dummy", "intx", "msi1", "msi0";
interrupt-map-mask = <0x0 0x0 0x0 0x7>;
interrupt-map = <0x0 0x0 0x0 0x1 &pcie_intc 0x1>,
<0x0 0x0 0x0 0x2 &pcie_intc 0x2>,
<0x0 0x0 0x0 0x3 &pcie_intc 0x3>,
<0x0 0x0 0x0 0x4 &pcie_intc 0x4>;
msi-parent = <&nwl_pcie>;
power-domains = <&zynqmp_firmware PD_PCIE>;
iommus = <&smmu 0x4d0>;
pcie_intc: legacy-interrupt-controller {
interrupt-controller;
#address-cells = <0>;
#interrupt-cells = <1>;
};
};
};
|
