1* Amazon Annapurna Labs PCIe host bridge 2 3Amazon's Annapurna Labs PCIe Host Controller is based on the Synopsys DesignWare 4PCI core. It inherits common properties defined in 5Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml. 6 7Properties 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 29Example: 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 }; 47