target/linux/bcm53xx/patches-4.1/036-0006-PCI-iproc-Update-PCIe-device-tree-bindings.patch

   1 From 8d0afa1a93be2da954c85392bbc7b2264c9d241c Mon Sep 17 00:00:00 2001
   2 From: Ray Jui <rjui@broadcom.com>
   3 Date: Tue, 15 Sep 2015 17:39:20 -0700
   4 Subject: [PATCH 6/7] PCI: iproc: Update PCIe device tree bindings
   5
   6 Update the device tree bindings with added support for outbound mapping
   7 configurations.
   8
   9 Signed-off-by: Ray Jui <rjui@broadcom.com>
  10 Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
  11 ---
  12  .../devicetree/bindings/pci/brcm,iproc-pcie.txt      | 20 ++++++++++++++++++++
  13  1 file changed, 20 insertions(+)
  14
  15 --- a/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt
  16 +++ b/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt
  17 @@ -17,6 +17,21 @@ Optional properties:
  18  - phys: phandle of the PCIe PHY device
  19  - phy-names: must be "pcie-phy"
  20
  21 +- brcm,pcie-ob: Some iProc SoCs do not have the outbound address mapping done
  22 +by the ASIC after power on reset. In this case, SW needs to configure it
  23 +
  24 +If the brcm,pcie-ob property is present, the following properties become
  25 +effective:
  26 +
  27 +Required:
  28 +- brcm,pcie-ob-axi-offset: The offset from the AXI address to the internal
  29 +address used by the iProc PCIe core (not the PCIe address)
  30 +- brcm,pcie-ob-window-size: The outbound address mapping window size (in MB)
  31 +
  32 +Optional:
  33 +- brcm,pcie-ob-oarr-size: Some iProc SoCs need the OARR size bit to be set to
  34 +increase the outbound window size
  35 +
  36  Example:
  37         pcie0: pcie@18012000 {
  38                 compatible = "brcm,iproc-pcie";
  39 @@ -38,6 +53,11 @@ Example:
  40
  41                 phys = <&phy 0 5>;
  42                 phy-names = "pcie-phy";
  43 +
  44 +               brcm,pcie-ob;
  45 +               brcm,pcie-ob-oarr-size;
  46 +               brcm,pcie-ob-axi-offset = <0x00000000>;
  47 +               brcm,pcie-ob-window-size = <256>;
  48         };
  49
  50         pcie1: pcie@18013000 {