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| 1 | +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | +%YAML 1.2 |
| 3 | +--- |
| 4 | +$id: http://devicetree.org/schemas/pci/nvidia,tegra264-pcie.yaml# |
| 5 | +$schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | + |
| 7 | +title: NVIDIA Tegra264 PCIe controller |
| 8 | + |
| 9 | +maintainers: |
| 10 | + - Thierry Reding <thierry.reding@gmail.com> |
| 11 | + - Jon Hunter <jonathanh@nvidia.com> |
| 12 | + |
| 13 | +properties: |
| 14 | + compatible: |
| 15 | + const: nvidia,tegra264-pcie |
| 16 | + |
| 17 | + reg: |
| 18 | + description: | |
| 19 | + Of the six PCIe controllers found on Tegra264, one (C0) is used for the |
| 20 | + internal GPU and the other five (C1-C5) are routed to connectors such as |
| 21 | + PCI or M.2 slots. Therefore the UPHY registers (XPL) exist only for C1 |
| 22 | + through C5, but not for C0. |
| 23 | + minItems: 4 |
| 24 | + items: |
| 25 | + - description: ECAM-compatible configuration space |
| 26 | + - description: application layer registers |
| 27 | + - description: transaction layer registers |
| 28 | + - description: privileged transaction layer registers |
| 29 | + - description: data link/physical layer registers (not available on C0) |
| 30 | + |
| 31 | + reg-names: |
| 32 | + minItems: 4 |
| 33 | + items: |
| 34 | + - const: ecam |
| 35 | + - const: xal |
| 36 | + - const: xtl |
| 37 | + - const: xtl-pri |
| 38 | + - const: xpl |
| 39 | + |
| 40 | + interrupts: |
| 41 | + minItems: 1 |
| 42 | + maxItems: 4 |
| 43 | + |
| 44 | + dma-coherent: true |
| 45 | + |
| 46 | + nvidia,bpmp: |
| 47 | + $ref: /schemas/types.yaml#/definitions/phandle-array |
| 48 | + description: | |
| 49 | + Must contain a pair of phandle (to the BPMP controller node) and |
| 50 | + controller ID. The following are the controller IDs for each controller: |
| 51 | +
|
| 52 | + 0: C0 |
| 53 | + 1: C1 |
| 54 | + 2: C2 |
| 55 | + 3: C3 |
| 56 | + 4: C4 |
| 57 | + 5: C5 |
| 58 | + items: |
| 59 | + - items: |
| 60 | + - description: phandle to the BPMP controller node |
| 61 | + - description: PCIe controller ID |
| 62 | + maximum: 5 |
| 63 | + |
| 64 | +required: |
| 65 | + - interrupt-map |
| 66 | + - interrupt-map-mask |
| 67 | + - iommu-map |
| 68 | + - msi-map |
| 69 | + - nvidia,bpmp |
| 70 | + |
| 71 | +allOf: |
| 72 | + - $ref: /schemas/pci/pci-host-bridge.yaml# |
| 73 | + |
| 74 | +unevaluatedProperties: false |
| 75 | + |
| 76 | +examples: |
| 77 | + - | |
| 78 | + bus { |
| 79 | + #address-cells = <2>; |
| 80 | + #size-cells = <2>; |
| 81 | +
|
| 82 | + pci@c000000 { |
| 83 | + compatible = "nvidia,tegra264-pcie"; |
| 84 | + reg = <0xd0 0xb0000000 0x0 0x10000000>, |
| 85 | + <0x00 0x0c000000 0x0 0x00004000>, |
| 86 | + <0x00 0x0c004000 0x0 0x00001000>, |
| 87 | + <0x00 0x0c005000 0x0 0x00001000>; |
| 88 | + reg-names = "ecam", "xal", "xtl", "xtl-pri"; |
| 89 | + #address-cells = <3>; |
| 90 | + #size-cells = <2>; |
| 91 | + device_type = "pci"; |
| 92 | + linux,pci-domain = <0x00>; |
| 93 | + #interrupt-cells = <0x1>; |
| 94 | +
|
| 95 | + interrupt-map-mask = <0x0 0x0 0x0 0x7>; |
| 96 | + interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0x0 0x0 155 4>, |
| 97 | + <0x0 0x0 0x0 0x2 &gic 0x0 0x0 0x0 156 4>, |
| 98 | + <0x0 0x0 0x0 0x3 &gic 0x0 0x0 0x0 157 4>, |
| 99 | + <0x0 0x0 0x0 0x4 &gic 0x0 0x0 0x0 158 4>; |
| 100 | +
|
| 101 | + iommu-map = <0x0 &smmu2 0x10000 0x10000>; |
| 102 | + msi-map = <0x0 &its 0x210000 0x10000>; |
| 103 | + dma-coherent; |
| 104 | +
|
| 105 | + ranges = <0x81000000 0x00 0x84000000 0xd0 0x84000000 0x00 0x00200000>, |
| 106 | + <0x82000000 0x00 0x20000000 0x00 0x20000000 0x00 0x08000000>, |
| 107 | + <0xc3000000 0xd0 0xc0000000 0xd0 0xc0000000 0x07 0xc0000000>; |
| 108 | + bus-range = <0x0 0xff>; |
| 109 | +
|
| 110 | + nvidia,bpmp = <&bpmp 0>; |
| 111 | + }; |
| 112 | + }; |
| 113 | +
|
| 114 | + - | |
| 115 | + bus { |
| 116 | + #address-cells = <2>; |
| 117 | + #size-cells = <2>; |
| 118 | +
|
| 119 | + pci@8400000 { |
| 120 | + compatible = "nvidia,tegra264-pcie"; |
| 121 | + reg = <0xa8 0xb0000000 0x0 0x10000000>, |
| 122 | + <0x00 0x08400000 0x0 0x00004000>, |
| 123 | + <0x00 0x08404000 0x0 0x00001000>, |
| 124 | + <0x00 0x08405000 0x0 0x00001000>, |
| 125 | + <0x00 0x08410000 0x0 0x00010000>; |
| 126 | + reg-names = "ecam", "xal", "xtl", "xtl-pri", "xpl"; |
| 127 | + #address-cells = <3>; |
| 128 | + #size-cells = <2>; |
| 129 | + device_type = "pci"; |
| 130 | + linux,pci-domain = <0x01>; |
| 131 | + #interrupt-cells = <1>; |
| 132 | + interrupt-map-mask = <0x0 0x0 0x0 0x7>; |
| 133 | + interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0x0 0x0 908 4>, |
| 134 | + <0x0 0x0 0x0 0x2 &gic 0x0 0x0 0x0 909 4>, |
| 135 | + <0x0 0x0 0x0 0x3 &gic 0x0 0x0 0x0 910 4>, |
| 136 | + <0x0 0x0 0x0 0x4 &gic 0x0 0x0 0x0 911 4>; |
| 137 | +
|
| 138 | + iommu-map = <0x0 &smmu1 0x10000 0x10000>; |
| 139 | + msi-map = <0x0 &its 0x110000 0x10000>; |
| 140 | + dma-coherent; |
| 141 | +
|
| 142 | + ranges = <0x81000000 0x00 0x84000000 0xa8 0x84000000 0x00 0x00200000>, |
| 143 | + <0x82000000 0x00 0x28000000 0x00 0x28000000 0x00 0x08000000>, |
| 144 | + <0xc3000000 0xa8 0xc0000000 0xa8 0xc0000000 0x07 0xc0000000>; |
| 145 | + bus-range = <0x00 0xff>; |
| 146 | +
|
| 147 | + nvidia,bpmp = <&bpmp 1>; |
| 148 | + }; |
| 149 | + }; |
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