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| author | Kishon Vijay Abraham I <kishon@ti.com> | 2015-07-28 16:39:09 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2015-08-11 23:57:34 +0300 |
| commit | 78bdcad05ea17fa1fe4644324b877162b1df4e16 (patch) | |
| tree | 0c8ec8fd142c406aa8f38ef56ffb0b80bbc695af /Documentation | |
| parent | 389c7094ec241ee8ebe358ba10fe392018692c8c (diff) | |
| download | linux-78bdcad05ea17fa1fe4644324b877162b1df4e16.tar.xz | |
PCI: dra7xx: Add support to make GPIO drive PERST# line
The PERST# line in am57x-evm is connected to a GPIO line and PERST# should
be driven high to indicate the clocks are stable (As per Figure 2-10: Power
Up of the PCIe CEM spec 3.0).
Add support to make GPIO drive PERST# line.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/pci/ti-pci.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pci/ti-pci.txt b/Documentation/devicetree/bindings/pci/ti-pci.txt index 3d217911b313..60e25161f351 100644 --- a/Documentation/devicetree/bindings/pci/ti-pci.txt +++ b/Documentation/devicetree/bindings/pci/ti-pci.txt @@ -23,6 +23,9 @@ PCIe Designware Controller interrupt-map-mask, interrupt-map : as specified in ../designware-pcie.txt +Optional Property: + - gpios : Should be added if a gpio line is required to drive PERST# line + Example: axi { compatible = "simple-bus"; |