This patch updates the iProc PCIe device tree bindings with added
support for outbound mapping configurations
Signed-off-by: Ray Jui <rjui@xxxxxxxxxxxx>
---
.../devicetree/bindings/pci/brcm,iproc-pcie.txt | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
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 {
--
1.9.1
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