| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/pci/loongson.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Loongson PCI Host Controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Jiaxun Yang <jiaxun.yang@flygoat.com> |
| 11 | |
| 12 | description: |+ |
| 13 | PCI host controller found on Loongson PCHs and SoCs. |
| 14 | |
| 15 | allOf: |
| 16 | - $ref: /schemas/pci/pci-bus.yaml# |
| 17 | |
| 18 | properties: |
| 19 | compatible: |
| 20 | enum: |
| 21 | - loongson,ls2k-pci |
| 22 | - loongson,ls7a-pci |
| 23 | - loongson,rs780e-pci |
| 24 | |
| 25 | reg: |
| 26 | minItems: 1 |
| 27 | items: |
| 28 | - description: CFG0 standard config space register |
| 29 | - description: CFG1 extended config space register |
| 30 | |
| 31 | ranges: |
| 32 | minItems: 1 |
| 33 | maxItems: 3 |
| 34 | |
| 35 | |
| 36 | required: |
| 37 | - compatible |
| 38 | - reg |
| 39 | - ranges |
| 40 | |
| 41 | unevaluatedProperties: false |
| 42 | |
| 43 | examples: |
| 44 | - | |
| 45 | |
| 46 | bus { |
| 47 | #address-cells = <2>; |
| 48 | #size-cells = <2>; |
| 49 | pcie@1a000000 { |
| 50 | compatible = "loongson,rs780e-pci"; |
| 51 | device_type = "pci"; |
| 52 | #address-cells = <3>; |
| 53 | #size-cells = <2>; |
| 54 | |
| 55 | // CPU_PHYSICAL(2) SIZE(2) |
| 56 | reg = <0x0 0x1a000000 0x0 0x2000000>; |
| 57 | |
| 58 | // BUS_ADDRESS(3) CPU_PHYSICAL(2) SIZE(2) |
| 59 | ranges = <0x01000000 0x0 0x00004000 0x0 0x00004000 0x0 0x00004000>, |
| 60 | <0x02000000 0x0 0x40000000 0x0 0x40000000 0x0 0x40000000>; |
| 61 | }; |
| 62 | }; |
| 63 | ... |