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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/pci/brcm,stb-pcie.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Brcmstb PCIe Host Controller Device Tree Bindings
maintainers:
- Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
allOf:
- $ref: /schemas/pci/pci-bus.yaml#
properties:
compatible:
const: brcm,bcm2711-pcie # The Raspberry Pi 4
reg:
maxItems: 1
interrupts:
minItems: 1
maxItems: 2
items:
- description: PCIe host controller
- description: builtin MSI controller
interrupt-names:
minItems: 1
maxItems: 2
items:
- const: pcie
- const: msi
ranges:
maxItems: 1
dma-ranges:
maxItems: 1
clocks:
maxItems: 1
clock-names:
items:
- const: sw_pcie
msi-controller:
description: Identifies the node as an MSI controller.
msi-parent:
description: MSI controller the device is capable of using.
brcm,enable-ssc:
description: Indicates usage of spread-spectrum clocking.
type: boolean
aspm-no-l0s: true
required:
- reg
- dma-ranges
- "#interrupt-cells"
- interrupts
- interrupt-names
- interrupt-map-mask
- interrupt-map
- msi-controller
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
scb {
#address-cells = <2>;
#size-cells = <1>;
pcie0: pcie@7d500000 {
compatible = "brcm,bcm2711-pcie";
reg = <0x0 0x7d500000 0x9310>;
device_type = "pci";
#address-cells = <3>;
#size-cells = <2>;
#interrupt-cells = <1>;
interrupts = <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "pcie", "msi";
interrupt-map-mask = <0x0 0x0 0x0 0x7>;
interrupt-map = <0 0 0 1 &gicv2 GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>;
msi-parent = <&pcie0>;
msi-controller;
ranges = <0x02000000 0x0 0xf8000000 0x6 0x00000000 0x0 0x04000000>;
dma-ranges = <0x02000000 0x0 0x00000000 0x0 0x00000000 0x0 0x80000000>;
brcm,enable-ssc;
};
};
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