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author | Bjorn Helgaas <bhelgaas@google.com> | 2019-09-24 00:10:17 +0300 |
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committer | Bjorn Helgaas <bhelgaas@google.com> | 2019-09-24 00:10:17 +0300 |
commit | af47f25f33f7f628cb50a82bc60b8ad1677626a2 (patch) | |
tree | 8800166bc3418a614ce9763cdd85e2b087715523 /Documentation | |
parent | 0ca0ef1042f49c4b457ca6cb48ebb5d1c0bcf003 (diff) | |
parent | 0b24134f7888175c9638e6fd1900e23e44fc172f (diff) | |
download | linux-af47f25f33f7f628cb50a82bc60b8ad1677626a2.tar.xz |
Merge branch 'remotes/lorenzo/pci/al'
- Add driver for Amazon Annapurna Labs PCIe controller (Jonathan Chocron)
- Disable MSI-X since Annapurna Labs advertises it, but it's broken
(Jonathan Chocron)
- Disable VPD since Annapurna Labs advertises it, but it's broken
(Jonathan Chocron)
- Add ACS quirk since Annapurna Labs doesn't support ACS but does provide
some equivalent protections (Ali Saidi)
* remotes/lorenzo/pci/al:
PCI: dwc: Add validation that PCIe core is set to correct mode
PCI: dwc: al: Add Amazon Annapurna Labs PCIe controller driver
dt-bindings: PCI: Add Amazon's Annapurna Labs PCIe host bridge binding
PCI: Add quirk to disable MSI-X support for Amazon's Annapurna Labs Root Port
PCI/VPD: Prevent VPD access for Amazon's Annapurna Labs Root Port
PCI: Add ACS quirk for Amazon Annapurna Labs root ports
PCI: Add Amazon's Annapurna Labs vendor ID
# Conflicts:
# drivers/pci/quirks.c
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/pci/pcie-al.txt | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pci/pcie-al.txt b/Documentation/devicetree/bindings/pci/pcie-al.txt new file mode 100644 index 000000000000..557a5089229d --- /dev/null +++ b/Documentation/devicetree/bindings/pci/pcie-al.txt @@ -0,0 +1,46 @@ +* 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/designware-pcie.txt. + +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>; + }; |