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| 1 | +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| 2 | +%YAML 1.2 |
| 3 | +--- |
| 4 | +$id: http://devicetree.org/schemas/pci/mediatek-pcie-mt7623.yaml# |
| 5 | +$schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | + |
| 7 | +title: PCIe controller on MediaTek SoCs |
| 8 | + |
| 9 | +maintainers: |
| 10 | + - Christian Marangi <ansuelsmth@gmail.com> |
| 11 | + |
| 12 | +properties: |
| 13 | + compatible: |
| 14 | + enum: |
| 15 | + - mediatek,mt2701-pcie |
| 16 | + - mediatek,mt7623-pcie |
| 17 | + |
| 18 | + reg: |
| 19 | + minItems: 4 |
| 20 | + maxItems: 4 |
| 21 | + |
| 22 | + reg-names: |
| 23 | + items: |
| 24 | + - const: subsys |
| 25 | + - const: port0 |
| 26 | + - const: port1 |
| 27 | + - const: port2 |
| 28 | + |
| 29 | + clocks: |
| 30 | + minItems: 4 |
| 31 | + maxItems: 4 |
| 32 | + |
| 33 | + clock-names: |
| 34 | + items: |
| 35 | + - const: free_ck |
| 36 | + - const: sys_ck0 |
| 37 | + - const: sys_ck1 |
| 38 | + - const: sys_ck2 |
| 39 | + |
| 40 | + resets: |
| 41 | + minItems: 3 |
| 42 | + maxItems: 3 |
| 43 | + |
| 44 | + reset-names: |
| 45 | + items: |
| 46 | + - const: pcie-rst0 |
| 47 | + - const: pcie-rst1 |
| 48 | + - const: pcie-rst2 |
| 49 | + |
| 50 | + phys: |
| 51 | + minItems: 3 |
| 52 | + maxItems: 3 |
| 53 | + |
| 54 | + phy-names: |
| 55 | + items: |
| 56 | + - const: pcie-phy0 |
| 57 | + - const: pcie-phy1 |
| 58 | + - const: pcie-phy2 |
| 59 | + |
| 60 | + power-domains: |
| 61 | + maxItems: 1 |
| 62 | + |
| 63 | +required: |
| 64 | + - compatible |
| 65 | + - reg |
| 66 | + - reg-names |
| 67 | + - ranges |
| 68 | + - clocks |
| 69 | + - clock-names |
| 70 | + - '#interrupt-cells' |
| 71 | + - resets |
| 72 | + - reset-names |
| 73 | + - phys |
| 74 | + - phy-names |
| 75 | + - power-domains |
| 76 | + - pcie@0,0 |
| 77 | + - pcie@1,0 |
| 78 | + - pcie@2,0 |
| 79 | + |
| 80 | +allOf: |
| 81 | + - $ref: /schemas/pci/pci-host-bridge.yaml# |
| 82 | + |
| 83 | +unevaluatedProperties: false |
| 84 | + |
| 85 | +examples: |
| 86 | + # MT7623 |
| 87 | + - | |
| 88 | + #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 89 | + #include <dt-bindings/interrupt-controller/irq.h> |
| 90 | + #include <dt-bindings/clock/mt2701-clk.h> |
| 91 | + #include <dt-bindings/reset/mt2701-resets.h> |
| 92 | + #include <dt-bindings/phy/phy.h> |
| 93 | + #include <dt-bindings/power/mt2701-power.h> |
| 94 | +
|
| 95 | + soc { |
| 96 | + #address-cells = <2>; |
| 97 | + #size-cells = <2>; |
| 98 | +
|
| 99 | + pcie@1a140000 { |
| 100 | + compatible = "mediatek,mt7623-pcie"; |
| 101 | + device_type = "pci"; |
| 102 | + reg = <0 0x1a140000 0 0x1000>, /* PCIe shared registers */ |
| 103 | + <0 0x1a142000 0 0x1000>, /* Port0 registers */ |
| 104 | + <0 0x1a143000 0 0x1000>, /* Port1 registers */ |
| 105 | + <0 0x1a144000 0 0x1000>; /* Port2 registers */ |
| 106 | + reg-names = "subsys", "port0", "port1", "port2"; |
| 107 | + #address-cells = <3>; |
| 108 | + #size-cells = <2>; |
| 109 | + #interrupt-cells = <1>; |
| 110 | + interrupt-map-mask = <0xf800 0 0 0>; |
| 111 | + interrupt-map = <0x0000 0 0 0 &sysirq GIC_SPI 193 IRQ_TYPE_LEVEL_LOW>, |
| 112 | + <0x0800 0 0 0 &sysirq GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>, |
| 113 | + <0x1000 0 0 0 &sysirq GIC_SPI 195 IRQ_TYPE_LEVEL_LOW>; |
| 114 | + clocks = <&topckgen CLK_TOP_ETHIF_SEL>, |
| 115 | + <&hifsys CLK_HIFSYS_PCIE0>, |
| 116 | + <&hifsys CLK_HIFSYS_PCIE1>, |
| 117 | + <&hifsys CLK_HIFSYS_PCIE2>; |
| 118 | + clock-names = "free_ck", "sys_ck0", "sys_ck1", "sys_ck2"; |
| 119 | + resets = <&hifsys MT2701_HIFSYS_PCIE0_RST>, |
| 120 | + <&hifsys MT2701_HIFSYS_PCIE1_RST>, |
| 121 | + <&hifsys MT2701_HIFSYS_PCIE2_RST>; |
| 122 | + reset-names = "pcie-rst0", "pcie-rst1", "pcie-rst2"; |
| 123 | + phys = <&pcie0_phy PHY_TYPE_PCIE>, <&pcie1_phy PHY_TYPE_PCIE>, |
| 124 | + <&pcie2_phy PHY_TYPE_PCIE>; |
| 125 | + phy-names = "pcie-phy0", "pcie-phy1", "pcie-phy2"; |
| 126 | + power-domains = <&scpsys MT2701_POWER_DOMAIN_HIF>; |
| 127 | + bus-range = <0x00 0xff>; |
| 128 | + ranges = <0x81000000 0 0x1a160000 0 0x1a160000 0 0x00010000>, /* I/O space */ |
| 129 | + <0x83000000 0 0x60000000 0 0x60000000 0 0x10000000>; /* memory space */ |
| 130 | +
|
| 131 | + pcie@0,0 { |
| 132 | + device_type = "pci"; |
| 133 | + reg = <0x0000 0 0 0 0>; |
| 134 | + #address-cells = <3>; |
| 135 | + #size-cells = <2>; |
| 136 | + #interrupt-cells = <1>; |
| 137 | + interrupt-map-mask = <0 0 0 0>; |
| 138 | + interrupt-map = <0 0 0 0 &sysirq GIC_SPI 193 IRQ_TYPE_LEVEL_LOW>; |
| 139 | + ranges; |
| 140 | + }; |
| 141 | +
|
| 142 | + pcie@1,0 { |
| 143 | + device_type = "pci"; |
| 144 | + reg = <0x0800 0 0 0 0>; |
| 145 | + #address-cells = <3>; |
| 146 | + #size-cells = <2>; |
| 147 | + #interrupt-cells = <1>; |
| 148 | + interrupt-map-mask = <0 0 0 0>; |
| 149 | + interrupt-map = <0 0 0 0 &sysirq GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>; |
| 150 | + ranges; |
| 151 | + }; |
| 152 | +
|
| 153 | + pcie@2,0 { |
| 154 | + device_type = "pci"; |
| 155 | + reg = <0x1000 0 0 0 0>; |
| 156 | + #address-cells = <3>; |
| 157 | + #size-cells = <2>; |
| 158 | + #interrupt-cells = <1>; |
| 159 | + interrupt-map-mask = <0 0 0 0>; |
| 160 | + interrupt-map = <0 0 0 0 &sysirq GIC_SPI 195 IRQ_TYPE_LEVEL_LOW>; |
| 161 | + ranges; |
| 162 | + }; |
| 163 | + }; |
| 164 | + }; |
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