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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>;
};
};
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