dt/bindings: Introduce the FSL QorIQ DPAA BMan portal(s)

Portals are memory mapped interfaces to BMan that allow low-latency,
lock-less interaction by software running on processor cores,
accelerators and network interfaces with the BMan

Signed-off-by: Emil Medve <Emilian.Medve@Freescale.com>
Change-Id: I6d245ffc14ba3d0e91d403ac7c3b91b75a9e6a95
Signed-off-by: Scott Wood <scottwood@freescale.com>

1 files changed, 56 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/soc/fsl/bman-portals.txt b/Documentation/devicetree/bindings/soc/fsl/bman-portals.txt
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+QorIQ DPAA Buffer Manager Portals Device Tree Binding
+
+Copyright (C) 2008 - 2014 Freescale Semiconductor Inc.
+
+CONTENTS
+
+        - BMan Portal
+        - Example
+
+BMan Portal Node
+
+Portals are memory mapped interfaces to BMan that allow low-latency, lock-less
+interaction by software running on processor cores, accelerators and network
+interfaces with the BMan
+
+PROPERTIES
+
+- compatible
+        Usage:          Required
+        Value type:     <stringlist>
+        Definition:     Must include "fsl,bman-portal-<hardware revision>"
+                        May include "fsl,<SoC>-bman-portal" or "fsl,bman-portal"
+
+- reg
+        Usage:          Required
+        Value type:     <prop-encoded-array>
+        Definition:     Two regions. The first is the cache-enabled region of
+                        the portal. The second is the cache-inhibited region of
+                        the portal
+
+- interrupts
+        Usage:          Required
+        Value type:     <prop-encoded-array>
+        Definition:     Standard property
+
+EXAMPLE
+
+The example below shows a (P4080) BMan portals container/bus node with two portals
+
+        bman-portals@ff4000000 {
+                #address-cells = <1>;
+                #size-cells = <1>;
+                compatible = "simple-bus";
+                ranges = <0 0xf 0xf4000000 0x200000>;
+
+                bman-portal@0 {
+                        compatible = "fsl,bman-portal-1.0.0", "fsl,bman-portal";
+                        reg = <0x0 0x4000>, <0x100000 0x1000>;
+                        interrupts = <105 2 0 0>;
+                };
+                bman-portal@4000 {
+                        compatible = "fsl,bman-portal-1.0.0", "fsl,bman-portal";
+                        reg = <0x4000 0x4000>, <0x101000 0x1000>;
+                        interrupts = <107 2 0 0>;
+                };
+        };