Documentation/devicetree/bindings/pci/pcie-al.txt

   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         };