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Commit | Line | Data |
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53633a89 TR |
1 | * Amazon Annapurna Labs PCIe host bridge |
2 | ||
3 | Amazon's Annapurna Labs PCIe Host Controller is based on the Synopsys DesignWare | |
4 | PCI core. It inherits common properties defined in | |
5 | Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml. | |
6 | ||
7 | Properties of the host controller node that differ from it are: | |
8 | ||
9 | - compatible: | |
10 | Usage: required | |
11 | Value type: <stringlist> | |
12 | Definition: Value should contain | |
13 | - "amazon,al-alpine-v2-pcie" for alpine_v2 | |
14 | - "amazon,al-alpine-v3-pcie" for alpine_v3 | |
15 | ||
16 | - reg: | |
17 | Usage: required | |
18 | Value type: <prop-encoded-array> | |
19 | Definition: Register ranges as listed in the reg-names property | |
20 | ||
21 | - reg-names: | |
22 | Usage: required | |
23 | Value type: <stringlist> | |
24 | Definition: Must include the following entries | |
25 | - "config" PCIe ECAM space | |
26 | - "controller" AL proprietary registers | |
27 | - "dbi" Designware PCIe registers | |
28 | ||
29 | Example: | |
30 | ||
31 | pcie-external0: pcie@fb600000 { | |
32 | compatible = "amazon,al-alpine-v3-pcie"; | |
33 | reg = <0x0 0xfb600000 0x0 0x00100000 | |
34 | 0x0 0xfd800000 0x0 0x00010000 | |
35 | 0x0 0xfd810000 0x0 0x00001000>; | |
36 | reg-names = "config", "controller", "dbi"; | |
37 | bus-range = <0 255>; | |
38 | device_type = "pci"; | |
39 | #address-cells = <3>; | |
40 | #size-cells = <2>; | |
41 | #interrupt-cells = <1>; | |
42 | interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>; | |
43 | interrupt-map-mask = <0x00 0 0 7>; | |
44 | interrupt-map = <0x0000 0 0 1 &gic GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>; /* INTa */ | |
45 | ranges = <0x02000000 0x0 0xc0010000 0x0 0xc0010000 0x0 0x07ff0000>; | |
46 | }; |