57 lines
1.4 KiB
Plaintext
57 lines
1.4 KiB
Plaintext
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>;
|
|
};
|
|
};
|