forked from Minki/linux
8522240385
-The Freescale Management Complex and all associated objects use message interrupts, and thus an msi-parent is required. -Define a ranges property to specify the mapping between the MC address space and the system address space. -The fsl-mc node may optionally have dpmac sub-nodes that describe the relationship between the Ethernet MACs which belong to the MC and the Ethernet PHYs on the system board. Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com> Acked-by: J. German Rivera <German.Rivera@nxp.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
120 lines
4.3 KiB
Plaintext
120 lines
4.3 KiB
Plaintext
* Freescale Management Complex
|
|
|
|
The Freescale Management Complex (fsl-mc) is a hardware resource
|
|
manager that manages specialized hardware objects used in
|
|
network-oriented packet processing applications. After the fsl-mc
|
|
block is enabled, pools of hardware resources are available, such as
|
|
queues, buffer pools, I/O interfaces. These resources are building
|
|
blocks that can be used to create functional hardware objects/devices
|
|
such as network interfaces, crypto accelerator instances, L2 switches,
|
|
etc.
|
|
|
|
Required properties:
|
|
|
|
- compatible
|
|
Value type: <string>
|
|
Definition: Must be "fsl,qoriq-mc". A Freescale Management Complex
|
|
compatible with this binding must have Block Revision
|
|
Registers BRR1 and BRR2 at offset 0x0BF8 and 0x0BFC in
|
|
the MC control register region.
|
|
|
|
- reg
|
|
Value type: <prop-encoded-array>
|
|
Definition: A standard property. Specifies one or two regions
|
|
defining the MC's registers:
|
|
|
|
-the first region is the command portal for the
|
|
this machine and must always be present
|
|
|
|
-the second region is the MC control registers. This
|
|
region may not be present in some scenarios, such
|
|
as in the device tree presented to a virtual machine.
|
|
|
|
- msi-parent
|
|
Value type: <phandle>
|
|
Definition: Must be present and point to the MSI controller node
|
|
handling message interrupts for the MC.
|
|
|
|
- ranges
|
|
Value type: <prop-encoded-array>
|
|
Definition: A standard property. Defines the mapping between the child
|
|
MC address space and the parent system address space.
|
|
|
|
The MC address space is defined by 3 components:
|
|
<region type> <offset hi> <offset lo>
|
|
|
|
Valid values for region type are
|
|
0x0 - MC portals
|
|
0x1 - QBMAN portals
|
|
|
|
- #address-cells
|
|
Value type: <u32>
|
|
Definition: Must be 3. (see definition in 'ranges' property)
|
|
|
|
- #size-cells
|
|
Value type: <u32>
|
|
Definition: Must be 1.
|
|
|
|
Sub-nodes:
|
|
|
|
The fsl-mc node may optionally have dpmac sub-nodes that describe
|
|
the relationship between the Ethernet MACs which belong to the MC
|
|
and the Ethernet PHYs on the system board.
|
|
|
|
The dpmac nodes must be under a node named "dpmacs" which contains
|
|
the following properties:
|
|
|
|
- #address-cells
|
|
Value type: <u32>
|
|
Definition: Must be present if dpmac sub-nodes are defined and must
|
|
have a value of 1.
|
|
|
|
- #size-cells
|
|
Value type: <u32>
|
|
Definition: Must be present if dpmac sub-nodes are defined and must
|
|
have a value of 0.
|
|
|
|
These nodes must have the following properties:
|
|
|
|
- compatible
|
|
Value type: <string>
|
|
Definition: Must be "fsl,qoriq-mc-dpmac".
|
|
|
|
- reg
|
|
Value type: <prop-encoded-array>
|
|
Definition: Specifies the id of the dpmac.
|
|
|
|
- phy-handle
|
|
Value type: <phandle>
|
|
Definition: Specifies the phandle to the PHY device node associated
|
|
with the this dpmac.
|
|
|
|
Example:
|
|
|
|
fsl_mc: fsl-mc@80c000000 {
|
|
compatible = "fsl,qoriq-mc";
|
|
reg = <0x00000008 0x0c000000 0 0x40>, /* MC portal base */
|
|
<0x00000000 0x08340000 0 0x40000>; /* MC control reg */
|
|
msi-parent = <&its>;
|
|
#address-cells = <3>;
|
|
#size-cells = <1>;
|
|
|
|
/*
|
|
* Region type 0x0 - MC portals
|
|
* Region type 0x1 - QBMAN portals
|
|
*/
|
|
ranges = <0x0 0x0 0x0 0x8 0x0c000000 0x4000000
|
|
0x1 0x0 0x0 0x8 0x18000000 0x8000000>;
|
|
|
|
dpmacs {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
dpmac@1 {
|
|
compatible = "fsl,qoriq-mc-dpmac";
|
|
reg = <1>;
|
|
phy-handle = <&mdio0_phy0>;
|
|
}
|
|
}
|
|
};
|