1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/pci/qcom,pcie-sa8775p.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Qualcomm SA8775p PCI Express Root Complex
8
9 maintainers:
10 - Bjorn Andersson <andersson@kernel.org>
11 - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
12
13 description:
14 Qualcomm SA8775p SoC PCIe root complex controller is based on the Synopsys
15 DesignWare PCIe IP.
16
17 properties:
18 compatible:
19 const: qcom,pcie-sa8775p
20
21 reg:
22 minItems: 6
23 maxItems: 6
24
25 reg-names:
26 items:
27 - const: parf # Qualcomm specific registers
28 - const: dbi # DesignWare PCIe registers
29 - const: elbi # External local bus interface registers
30 - const: atu # ATU address space
31 - const: config # PCIe configuration space
32 - const: mhi # MHI registers
33
34 clocks:
35 minItems: 5
36 maxItems: 5
37
38 clock-names:
39 items:
40 - const: aux # Auxiliary clock
41 - const: cfg # Configuration clock
42 - const: bus_master # Master AXI clock
43 - const: bus_slave # Slave AXI clock
44 - const: slave_q2a # Slave Q2A clock
45
46 interrupts:
47 minItems: 8
48 maxItems: 8
49
50 interrupt-names:
51 items:
52 - const: msi0
53 - const: msi1
54 - const: msi2
55 - const: msi3
56 - const: msi4
57 - const: msi5
58 - const: msi6
59 - const: msi7
60
61 resets:
62 maxItems: 1
63
64 reset-names:
65 items:
66 - const: pci
67
68 required:
69 - interconnects
70 - interconnect-names
71
72 allOf:
73 - $ref: qcom,pcie-common.yaml#
74
75 unevaluatedProperties: false
76
77 examples:
78 - |
79 #include <dt-bindings/clock/qcom,sa8775p-gcc.h>
80 #include <dt-bindings/clock/qcom,rpmh.h>
81 #include <dt-bindings/gpio/gpio.h>
82 #include <dt-bindings/interrupt-controller/arm-gic.h>
83 #include <dt-bindings/interconnect/qcom,sa8775p-rpmh.h>
84
85 soc {
86 #address-cells = <2>;
87 #size-cells = <2>;
88
89 pcie@1c00000 {
90 compatible = "qcom,pcie-sa8775p";
91 reg = <0x0 0x01c00000 0x0 0x3000>,
92 <0x0 0x40000000 0x0 0xf20>,
93 <0x0 0x40000f20 0x0 0xa8>,
94 <0x0 0x40001000 0x0 0x4000>,
95 <0x0 0x40100000 0x0 0x100000>,
96 <0x0 0x01c03000 0x0 0x1000>;
97 reg-names = "parf", "dbi", "elbi", "atu", "config", "mhi";
98 ranges = <0x01000000 0x0 0x00000000 0x0 0x40200000 0x0 0x100000>,
99 <0x02000000 0x0 0x40300000 0x0 0x40300000 0x0 0x1fd00000>;
100
101 bus-range = <0x00 0xff>;
102 device_type = "pci";
103 linux,pci-domain = <0>;
104 num-lanes = <2>;
105
106 #address-cells = <3>;
107 #size-cells = <2>;
108
109 assigned-clocks = <&gcc GCC_PCIE_0_AUX_CLK>;
110 assigned-clock-rates = <19200000>;
111
112 clocks = <&gcc GCC_PCIE_0_AUX_CLK>,
113 <&gcc GCC_PCIE_0_CFG_AHB_CLK>,
114 <&gcc GCC_PCIE_0_MSTR_AXI_CLK>,
115 <&gcc GCC_PCIE_0_SLV_AXI_CLK>,
116 <&gcc GCC_PCIE_0_SLV_Q2A_AXI_CLK>;
117 clock-names = "aux",
118 "cfg",
119 "bus_master",
120 "bus_slave",
121 "slave_q2a";
122
123 dma-coherent;
124
125 interrupts = <GIC_SPI 307 IRQ_TYPE_LEVEL_HIGH>,
126 <GIC_SPI 308 IRQ_TYPE_LEVEL_HIGH>,
127 <GIC_SPI 309 IRQ_TYPE_LEVEL_HIGH>,
128 <GIC_SPI 312 IRQ_TYPE_LEVEL_HIGH>,
129 <GIC_SPI 313 IRQ_TYPE_LEVEL_HIGH>,
130 <GIC_SPI 314 IRQ_TYPE_LEVEL_HIGH>,
131 <GIC_SPI 374 IRQ_TYPE_LEVEL_HIGH>,
132 <GIC_SPI 375 IRQ_TYPE_LEVEL_HIGH>;
133 interrupt-names = "msi0",
134 "msi1",
135 "msi2",
136 "msi3",
137 "msi4",
138 "msi5",
139 "msi6",
140 "msi7";
141 #interrupt-cells = <1>;
142 interrupt-map-mask = <0 0 0 0x7>;
143 interrupt-map = <0 0 0 1 &intc GIC_SPI 434 IRQ_TYPE_LEVEL_HIGH>,
144 <0 0 0 2 &intc GIC_SPI 435 IRQ_TYPE_LEVEL_HIGH>,
145 <0 0 0 3 &intc GIC_SPI 438 IRQ_TYPE_LEVEL_HIGH>,
146 <0 0 0 4 &intc GIC_SPI 439 IRQ_TYPE_LEVEL_HIGH>;
147
148 interconnects = <&pcie_anoc MASTER_PCIE_0 0 &mc_virt SLAVE_EBI1 0>,
149 <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_PCIE_0 0>;
150 interconnect-names = "pcie-mem", "cpu-pcie";
151
152 iommu-map = <0x0 &pcie_smmu 0x0000 0x1>,
153 <0x100 &pcie_smmu 0x0001 0x1>;
154
155 phys = <&pcie0_phy>;
156 phy-names = "pciephy";
157
158 power-domains = <&gcc PCIE_0_GDSC>;
159
160 resets = <&gcc GCC_PCIE_0_BCR>;
161 reset-names = "pci";
162
163 perst-gpios = <&tlmm 2 GPIO_ACTIVE_LOW>;
164 wake-gpios = <&tlmm 0 GPIO_ACTIVE_HIGH>;
165 };
166 };
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