135 lines
3.1 KiB
Plaintext
Executable file
135 lines
3.1 KiB
Plaintext
Executable file
QorIQ DPAA Queue Manager Portals Device Tree Binding
|
|
|
|
Copyright (C) 2008 - 2014 Freescale Semiconductor Inc.
|
|
|
|
CONTENTS
|
|
|
|
- QMan Portal
|
|
- Example
|
|
|
|
QMan Portal Node
|
|
|
|
Portals are memory mapped interfaces to QMan that allow low-latency, lock-less
|
|
interaction by software running on processor cores, accelerators and network
|
|
interfaces with the QMan
|
|
|
|
PROPERTIES
|
|
|
|
- compatible
|
|
Usage: Required
|
|
Value type: <stringlist>
|
|
Definition: Must include "fsl,qman-portal-<hardware revision>"
|
|
May include "fsl,<SoC>-qman-portal" or "fsl,qman-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
|
|
|
|
- fsl,liodn
|
|
Usage: See pamu.txt
|
|
Value type: <prop-encoded-array>
|
|
Definition: Two LIODN(s). DQRR LIODN (DLIODN) and Frame LIODN
|
|
(FLIODN)
|
|
|
|
- fsl,iommu-parent
|
|
Usage: See pamu.txt
|
|
Value type: <phandle>
|
|
Definition: PAMU property used for dynamic LIODN assignment
|
|
|
|
For additional details about the PAMU/LIODN binding(s) see pamu.txt
|
|
|
|
- cell-index
|
|
Usage: Required
|
|
Value type: <u32>
|
|
Definition: The hardware index of the channel. This can also be
|
|
determined by dividing any of the channel's 8 work queue
|
|
IDs by 8
|
|
|
|
In addition to these properties the qman-portals should have sub-nodes to
|
|
represent the HW devices/portals that are connected to the software portal
|
|
described here
|
|
|
|
The currently supported sub-nodes are:
|
|
* fman0
|
|
* fman1
|
|
* pme
|
|
* crypto
|
|
|
|
These subnodes should have the following properties:
|
|
|
|
- fsl,liodn
|
|
Usage: See pamu.txt
|
|
Value type: <prop-encoded-array>
|
|
Definition: PAMU property used for static LIODN assignment
|
|
|
|
- fsl,iommu-parent
|
|
Usage: See pamu.txt
|
|
Value type: <phandle>
|
|
Definition: PAMU property used for dynamic LIODN assignment
|
|
|
|
- dev-handle
|
|
Usage: Required
|
|
Value type: <phandle>
|
|
Definition: The phandle to the particular hardware device that this
|
|
portal is connected to.
|
|
|
|
EXAMPLE
|
|
|
|
The example below shows a (P4080) QMan portals container/bus node with two portals
|
|
|
|
qman-portals@ff4200000 {
|
|
#address-cells = <1>;
|
|
#size-cells = <1>;
|
|
compatible = "simple-bus";
|
|
ranges = <0 0xf 0xf4200000 0x200000>;
|
|
|
|
qman-portal@0 {
|
|
compatible = "fsl,qman-portal-1.2.0", "fsl,qman-portal";
|
|
reg = <0 0x4000>, <0x100000 0x1000>;
|
|
interrupts = <104 2 0 0>;
|
|
fsl,liodn = <1 2>;
|
|
fsl,qman-channel-id = <0>;
|
|
|
|
fman0 {
|
|
fsl,liodn = <0x21>;
|
|
dev-handle = <&fman0>;
|
|
};
|
|
fman1 {
|
|
fsl,liodn = <0xa1>;
|
|
dev-handle = <&fman1>;
|
|
};
|
|
crypto {
|
|
fsl,liodn = <0x41 0x66>;
|
|
dev-handle = <&crypto>;
|
|
};
|
|
};
|
|
qman-portal@4000 {
|
|
compatible = "fsl,qman-portal-1.2.0", "fsl,qman-portal";
|
|
reg = <0x4000 0x4000>, <0x101000 0x1000>;
|
|
interrupts = <106 2 0 0>;
|
|
fsl,liodn = <3 4>;
|
|
cell-index = <1>;
|
|
|
|
fman0 {
|
|
fsl,liodn = <0x22>;
|
|
dev-handle = <&fman0>;
|
|
};
|
|
fman1 {
|
|
fsl,liodn = <0xa2>;
|
|
dev-handle = <&fman1>;
|
|
};
|
|
crypto {
|
|
fsl,liodn = <0x42 0x67>;
|
|
dev-handle = <&crypto>;
|
|
};
|
|
};
|
|
};
|