tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/pci/brcm,stb-pcie.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Brcmstb PCIe Host Controller Device Tree Bindings
8
9maintainers:
10 - Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
11
12allOf:
13 - $ref: /schemas/pci/pci-bus.yaml#
14
15properties:
16 compatible:
17 const: brcm,bcm2711-pcie # The Raspberry Pi 4
18
19 reg:
20 maxItems: 1
21
22 interrupts:
23 minItems: 1
24 maxItems: 2
25 items:
26 - description: PCIe host controller
27 - description: builtin MSI controller
28
29 interrupt-names:
30 minItems: 1
31 maxItems: 2
32 items:
33 - const: pcie
34 - const: msi
35
36 ranges:
37 maxItems: 1
38
39 dma-ranges:
40 maxItems: 1
41
42 clocks:
43 maxItems: 1
44
45 clock-names:
46 items:
47 - const: sw_pcie
48
49 msi-controller:
50 description: Identifies the node as an MSI controller.
51
52 msi-parent:
53 description: MSI controller the device is capable of using.
54
55 brcm,enable-ssc:
56 description: Indicates usage of spread-spectrum clocking.
57 type: boolean
58
59required:
60 - reg
61 - dma-ranges
62 - "#interrupt-cells"
63 - interrupts
64 - interrupt-names
65 - interrupt-map-mask
66 - interrupt-map
67 - msi-controller
68
69unevaluatedProperties: false
70
71examples:
72 - |
73 #include <dt-bindings/interrupt-controller/irq.h>
74 #include <dt-bindings/interrupt-controller/arm-gic.h>
75
76 scb {
77 #address-cells = <2>;
78 #size-cells = <1>;
79 pcie0: pcie@7d500000 {
80 compatible = "brcm,bcm2711-pcie";
81 reg = <0x0 0x7d500000 0x9310>;
82 device_type = "pci";
83 #address-cells = <3>;
84 #size-cells = <2>;
85 #interrupt-cells = <1>;
86 interrupts = <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>,
87 <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>;
88 interrupt-names = "pcie", "msi";
89 interrupt-map-mask = <0x0 0x0 0x0 0x7>;
90 interrupt-map = <0 0 0 1 &gicv2 GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>;
91 msi-parent = <&pcie0>;
92 msi-controller;
93 ranges = <0x02000000 0x0 0xf8000000 0x6 0x00000000 0x0 0x04000000>;
94 dma-ranges = <0x02000000 0x0 0x00000000 0x0 0x00000000 0x0 0x80000000>;
95 brcm,enable-ssc;
96 };
97 };