| * Amazon Annapurna Labs PCIe host bridge |
| |
| Amazon's Annapurna Labs PCIe Host Controller is based on the Synopsys DesignWare |
| PCI core. It inherits common properties defined in |
| Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml. |
| |
| Properties of the host controller node that differ from it are: |
| |
| - compatible: |
| Usage: required |
| Value type: <stringlist> |
| Definition: Value should contain |
| - "amazon,al-alpine-v2-pcie" for alpine_v2 |
| - "amazon,al-alpine-v3-pcie" for alpine_v3 |
| |
| - reg: |
| Usage: required |
| Value type: <prop-encoded-array> |
| Definition: Register ranges as listed in the reg-names property |
| |
| - reg-names: |
| Usage: required |
| Value type: <stringlist> |
| Definition: Must include the following entries |
| - "config" PCIe ECAM space |
| - "controller" AL proprietary registers |
| - "dbi" Designware PCIe registers |
| |
| Example: |
| |
| pcie-external0: pcie@fb600000 { |
| compatible = "amazon,al-alpine-v3-pcie"; |
| reg = <0x0 0xfb600000 0x0 0x00100000 |
| 0x0 0xfd800000 0x0 0x00010000 |
| 0x0 0xfd810000 0x0 0x00001000>; |
| reg-names = "config", "controller", "dbi"; |
| bus-range = <0 255>; |
| device_type = "pci"; |
| #address-cells = <3>; |
| #size-cells = <2>; |
| #interrupt-cells = <1>; |
| interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>; |
| interrupt-map-mask = <0x00 0 0 7>; |
| interrupt-map = <0x0000 0 0 1 &gic GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>; /* INTa */ |
| ranges = <0x02000000 0x0 0xc0010000 0x0 0xc0010000 0x0 0x07ff0000>; |
| }; |
