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| author |   Kishon Vijay Abraham I <kishon@ti.com> | 2017-03-27 15:15:06 +0530 |
|---|---|---|
| committer |   Bjorn Helgaas <bhelgaas@google.com> | 2017-04-28 10:23:17 -0500 |
| commit | b12befecd7de905a05053eb6a266e3b97528c6d4 (patch) | |
| tree | adace7eb20dda192eb75762eedb631cd938bfe9c /Documentation/devicetree/bindings/pci/designware-pcie.txt | |
| parent | PCI: dwc: designware: Add EP mode support (diff) | |
| download | linux-dev-b12befecd7de905a05053eb6a266e3b97528c6d4.tar.xz linux-dev-b12befecd7de905a05053eb6a266e3b97528c6d4.zip | |
dt-bindings: PCI: Add DT bindings for PCI designware EP mode
Add device tree binding documentation for PCI designware EP mode.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
Diffstat (limited to '')
| -rw-r--r-- | Documentation/devicetree/bindings/pci/designware-pcie.txt | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/Documentation/devicetree/bindings/pci/designware-pcie.txt b/Documentation/devicetree/bindings/pci/designware-pcie.txt index 1392c705ceca..b2480dd38c11 100644 --- a/Documentation/devicetree/bindings/pci/designware-pcie.txt +++ b/Documentation/devicetree/bindings/pci/designware-pcie.txt @@ -6,30 +6,40 @@ Required properties: - reg-names: Must be "config" for the PCIe configuration space. (The old way of getting the configuration address space from "ranges" is deprecated and should be avoided.) +- num-lanes: number of lanes to use +RC mode: - #address-cells: set to <3> - #size-cells: set to <2> - device_type: set to "pci" - ranges: ranges for the PCI memory and I/O regions - #interrupt-cells: set to <1> -- interrupt-map-mask and interrupt-map: standard PCI properties - to define the mapping of the PCIe interface to interrupt +- interrupt-map-mask and interrupt-map: standard PCI + properties to define the mapping of the PCIe interface to interrupt numbers. -- num-lanes: number of lanes to use +EP mode: +- num-ib-windows: number of inbound address translation + windows +- num-ob-windows: number of outbound address translation + windows Optional properties: -- num-viewport: number of view ports configured in hardware. If a platform - does not specify it, the driver assumes 2. - num-lanes: number of lanes to use (this property should be specified unless the link is brought already up in BIOS) - reset-gpio: gpio pin number of power good signal -- bus-range: PCI bus numbers covered (it is recommended for new devicetrees to - specify this property, to keep backwards compatibility a range of 0x00-0xff - is assumed if not present) - clocks: Must contain an entry for each entry in clock-names. See ../clocks/clock-bindings.txt for details. - clock-names: Must include the following entries: - "pcie" - "pcie_bus" +RC mode: +- num-viewport: number of view ports configured in + hardware. If a platform does not specify it, the driver assumes 2. +- bus-range: PCI bus numbers covered (it is recommended + for new devicetrees to specify this property, to keep backwards + compatibility a range of 0x00-0xff is assumed if not present) +EP mode: +- max-functions: maximum number of functions that can be + configured Example configuration: |