1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/pci/intel,keembay-pcie.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Intel Keem Bay PCIe controller Root Complex mode
8
9 maintainers:
10 - Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad@intel.com>
11 - Srikanth Thokala <srikanth.thokala@intel.com>
12
13 allOf:
14 - $ref: /schemas/pci/pci-host-bridge.yaml#
15
16 properties:
17 compatible:
18 const: intel,keembay-pcie
19
20 ranges:
21 maxItems: 1
22
23 reset-gpios:
24 maxItems: 1
25
26 reg:
27 maxItems: 4
28
29 reg-names:
30 items:
31 - const: dbi
32 - const: atu
33 - const: config
34 - const: apb
35
36 clocks:
37 maxItems: 2
38
39 clock-names:
40 items:
41 - const: master
42 - const: aux
43
44 interrupts:
45 maxItems: 3
46
47 interrupt-names:
48 items:
49 - const: pcie
50 - const: pcie_ev
51 - const: pcie_err
52
53 num-lanes:
54 description: Number of lanes to use.
55 enum: [ 1, 2 ]
56
57 required:
58 - compatible
59 - reg
60 - reg-names
61 - ranges
62 - clocks
63 - clock-names
64 - interrupts
65 - interrupt-names
66 - reset-gpios
67
68 unevaluatedProperties: false
69
70 examples:
71 - |
72 #include <dt-bindings/interrupt-controller/arm-gic.h>
73 #include <dt-bindings/interrupt-controller/irq.h>
74 #include <dt-bindings/gpio/gpio.h>
75 #define KEEM_BAY_A53_PCIE
76 #define KEEM_BAY_A53_AUX_PCIE
77 pcie@37000000 {
78 compatible = "intel,keembay-pcie";
79 reg = <0x37000000 0x00001000>,
80 <0x37300000 0x00001000>,
81 <0x36e00000 0x00200000>,
82 <0x37800000 0x00000200>;
83 reg-names = "dbi", "atu", "config", "apb";
84 #address-cells = <3>;
85 #size-cells = <2>;
86 device_type = "pci";
87 ranges = <0x02000000 0 0x36000000 0x36000000 0 0x00e00000>;
88 interrupts = <GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>,
89 <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>,
90 <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>;
91 interrupt-names = "pcie", "pcie_ev", "pcie_err";
92 clocks = <&scmi_clk KEEM_BAY_A53_PCIE>,
93 <&scmi_clk KEEM_BAY_A53_AUX_PCIE>;
94 clock-names = "master", "aux";
95 reset-gpios = <&pca2 9 GPIO_ACTIVE_LOW>;
96 num-lanes = <2>;
97 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.