Merge tag 'drm-next-2020-12-24' of git://anongit.freedesktop.org/drm/drm
[linux-2.6-microblaze.git] / Documentation / devicetree / bindings / pci / ti,j721e-pci-ep.yaml
1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 # Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
3 %YAML 1.2
4 ---
5 $id: "http://devicetree.org/schemas/pci/ti,j721e-pci-ep.yaml#"
6 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
7
8 title: TI J721E PCI EP (PCIe Wrapper)
9
10 maintainers:
11   - Kishon Vijay Abraham I <kishon@ti.com>
12
13 allOf:
14   - $ref: "cdns-pcie-ep.yaml#"
15
16 properties:
17   compatible:
18     oneOf:
19       - description: PCIe EP controller in J7200
20         items:
21           - const: ti,j7200-pcie-ep
22           - const: ti,j721e-pcie-ep
23       - description: PCIe EP controller in J721E
24         items:
25           - const: ti,j721e-pcie-ep
26
27   reg:
28     maxItems: 4
29
30   reg-names:
31     items:
32       - const: intd_cfg
33       - const: user_cfg
34       - const: reg
35       - const: mem
36
37   ti,syscon-pcie-ctrl:
38     $ref: /schemas/types.yaml#/definitions/phandle-array
39     items:
40       - items:
41           - description: Phandle to the SYSCON entry
42           - description: pcie_ctrl register offset within SYSCON
43     description: Specifier for configuring PCIe mode and link speed.
44
45   power-domains:
46     maxItems: 1
47
48   clocks:
49     maxItems: 1
50     description: clock-specifier to represent input to the PCIe
51
52   clock-names:
53     items:
54       - const: fck
55
56   dma-coherent:
57     description: Indicates that the PCIe IP block can ensure the coherency
58
59 required:
60   - compatible
61   - reg
62   - reg-names
63   - ti,syscon-pcie-ctrl
64   - max-link-speed
65   - num-lanes
66   - power-domains
67   - clocks
68   - clock-names
69   - dma-coherent
70   - max-functions
71   - phys
72   - phy-names
73
74 unevaluatedProperties: false
75
76 examples:
77   - |
78     #include <dt-bindings/soc/ti,sci_pm_domain.h>
79
80     bus {
81         #address-cells = <2>;
82         #size-cells = <2>;
83
84         pcie0_ep: pcie-ep@d000000 {
85            compatible = "ti,j721e-pcie-ep";
86            reg = <0x00 0x02900000 0x00 0x1000>,
87                  <0x00 0x02907000 0x00 0x400>,
88                  <0x00 0x0d000000 0x00 0x00800000>,
89                  <0x00 0x10000000 0x00 0x08000000>;
90            reg-names = "intd_cfg", "user_cfg", "reg", "mem";
91            ti,syscon-pcie-ctrl = <&pcie0_ctrl 0x4070>;
92            max-link-speed = <3>;
93            num-lanes = <2>;
94            power-domains = <&k3_pds 239 TI_SCI_PD_EXCLUSIVE>;
95            clocks = <&k3_clks 239 1>;
96            clock-names = "fck";
97            max-functions = /bits/ 8 <6>;
98            dma-coherent;
99            phys = <&serdes0_pcie_link>;
100            phy-names = "pcie-phy";
101        };
102     };