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author | Ray Jui <rjui@broadcom.com> | 2015-09-15 17:39:20 -0700 |
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committer | Bjorn Helgaas <bhelgaas@google.com> | 2015-09-25 18:19:46 -0500 |
commit | 8d0afa1a93be2da954c85392bbc7b2264c9d241c (patch) | |
tree | 2c8b089b87965a74cddb9eeffc04a7b42fb3d9de /Documentation/devicetree/bindings/pci | |
parent | aaf22ab4e916afa68a2e1aed4e913b76cbd58276 (diff) | |
download | op-kernel-dev-8d0afa1a93be2da954c85392bbc7b2264c9d241c.zip op-kernel-dev-8d0afa1a93be2da954c85392bbc7b2264c9d241c.tar.gz |
PCI: iproc: Update PCIe device tree bindings
Update the device tree bindings with added support for outbound mapping
configurations.
Signed-off-by: Ray Jui <rjui@broadcom.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'Documentation/devicetree/bindings/pci')
-rw-r--r-- | Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt b/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt index f7ce50e..45c2a80 100644 --- a/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt +++ b/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt @@ -17,6 +17,21 @@ Optional properties: - phys: phandle of the PCIe PHY device - phy-names: must be "pcie-phy" +- brcm,pcie-ob: Some iProc SoCs do not have the outbound address mapping done +by the ASIC after power on reset. In this case, SW needs to configure it + +If the brcm,pcie-ob property is present, the following properties become +effective: + +Required: +- brcm,pcie-ob-axi-offset: The offset from the AXI address to the internal +address used by the iProc PCIe core (not the PCIe address) +- brcm,pcie-ob-window-size: The outbound address mapping window size (in MB) + +Optional: +- brcm,pcie-ob-oarr-size: Some iProc SoCs need the OARR size bit to be set to +increase the outbound window size + Example: pcie0: pcie@18012000 { compatible = "brcm,iproc-pcie"; @@ -38,6 +53,11 @@ Example: phys = <&phy 0 5>; phy-names = "pcie-phy"; + + brcm,pcie-ob; + brcm,pcie-ob-oarr-size; + brcm,pcie-ob-axi-offset = <0x00000000>; + brcm,pcie-ob-window-size = <256>; }; pcie1: pcie@18013000 { |