0001 * Amazon Annapurna Labs PCIe host bridge
0002
0003 Amazon's Annapurna Labs PCIe Host Controller is based on the Synopsys DesignWare
0004 PCI core. It inherits common properties defined in
0005 Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml.
0006
0007 Properties of the host controller node that differ from it are:
0008
0009 - compatible:
0010 Usage: required
0011 Value type: <stringlist>
0012 Definition: Value should contain
0013 - "amazon,al-alpine-v2-pcie" for alpine_v2
0014 - "amazon,al-alpine-v3-pcie" for alpine_v3
0015
0016 - reg:
0017 Usage: required
0018 Value type: <prop-encoded-array>
0019 Definition: Register ranges as listed in the reg-names property
0020
0021 - reg-names:
0022 Usage: required
0023 Value type: <stringlist>
0024 Definition: Must include the following entries
0025 - "config" PCIe ECAM space
0026 - "controller" AL proprietary registers
0027 - "dbi" Designware PCIe registers
0028
0029 Example:
0030
0031 pcie-external0: pcie@fb600000 {
0032 compatible = "amazon,al-alpine-v3-pcie";
0033 reg = <0x0 0xfb600000 0x0 0x00100000
0034 0x0 0xfd800000 0x0 0x00010000
0035 0x0 0xfd810000 0x0 0x00001000>;
0036 reg-names = "config", "controller", "dbi";
0037 bus-range = <0 255>;
0038 device_type = "pci";
0039 #address-cells = <3>;
0040 #size-cells = <2>;
0041 #interrupt-cells = <1>;
0042 interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
0043 interrupt-map-mask = <0x00 0 0 7>;
0044 interrupt-map = <0x0000 0 0 1 &gic GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>; /* INTa */
0045 ranges = <0x02000000 0x0 0xc0010000 0x0 0xc0010000 0x0 0x07ff0000>;
0046 };
