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# SPDX-License-Identifier: (GPL-
2.
0 OR BSD-
2-Clause)
%YAML
1.
2
---
$id:
http://devicetree.org/schemas/pci/intel-gw-pcie.yaml#
$schema:
http://devicetree.org/meta-schemas/core.yaml#
title: PCIe RC controller on Intel Gateway SoCs
maintainers:
- Rahul Tanwar <rtanwar@maxlinear.com>
select:
properties:
compatible:
contains:
const: intel,lgm-pcie
required:
- compatible
allOf:
- $ref: /schemas/pci/snps,dw-pcie.yaml#
properties:
compatible:
items:
- const: intel,lgm-pcie
- const: snps,dw-pcie
reg:
items:
- description: Controller control and status registers.
- description: PCIe configuration registers.
- description: Controller application registers.
reg-names:
items:
- const: dbi
- const: config
- const: app
ranges:
maxItems:
1
resets:
maxItems:
1
clocks:
maxItems:
1
phys:
maxItems:
1
phy-names:
const: pcie
reset-gpios:
maxItems:
1
num-lanes:
maximum:
2
max-link-speed:
enum: [
1,
2,
3,
4]
default:
1
reset-assert-ms:
description: |
Delay after asserting reset to the PCIe device.
maximum:
500
default:
100
required:
- compatible
- reg
- reg-names
- ranges
- resets
- clocks
- phys
- phy-names
- reset-gpios
- '#interrupt-cells'
- interrupt-map
- interrupt-map-mask
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
pcie10: pcie@d0e00000 {
compatible = "intel,lgm-pcie", "snps,dw-pcie";
device_type = "pci";
#address-cells = <
3>;
#size-cells = <
2>;
reg = <
0xd0e00000
0x1000>,
<
0xd2000000
0x800000>,
<
0xd0a41000
0x1000>;
reg-names = "dbi", "config", "app";
linux,pci-domain = <
0>;
max-link-speed = <
4>;
bus-range = <
0x00
0x08>;
#interrupt-cells = <
1>;
interrupt-map-mask = <
0 0 0 0x7>;
interrupt-map = <
0 0 0 1 &ioapic1
27 1>,
<
0 0 0 2 &ioapic1
28 1>,
<
0 0 0 3 &ioapic1
29 1>,
<
0 0 0 4 &ioapic1
30 1>;
ranges = <
0x02000000
0 0xd4000000
0xd4000000
0 0x04000000>;
resets = <&rcu0
0x50
0>;
clocks = <&cgu0
120>;
phys = <&cb0phy0>;
phy-names = "pcie";
reset-assert-ms = <
500>;
reset-gpios = <&gpio0
3 GPIO_ACTIVE_LOW>;
num-lanes = <
2>;
};