forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
104 lines
3.3 KiB
104 lines
3.3 KiB
* Freescale Serial RapidIO (SRIO) Controller |
|
|
|
RapidIO port node: |
|
Properties: |
|
- compatible |
|
Usage: required |
|
Value type: <string> |
|
Definition: Must include "fsl,srio" for IP blocks with IP Block |
|
Revision Register (SRIO IPBRR1) Major ID equal to 0x01c0. |
|
|
|
Optionally, a compatible string of "fsl,srio-vX.Y" where X is Major |
|
version in IP Block Revision Register and Y is Minor version. If this |
|
compatible is provided it should be ordered before "fsl,srio". |
|
|
|
- reg |
|
Usage: required |
|
Value type: <prop-encoded-array> |
|
Definition: A standard property. Specifies the physical address and |
|
length of the SRIO configuration registers. The size should |
|
be set to 0x11000. |
|
|
|
- interrupts |
|
Usage: required |
|
Value type: <prop_encoded-array> |
|
Definition: Specifies the interrupts generated by this device. The |
|
value of the interrupts property consists of one interrupt |
|
specifier. The format of the specifier is defined by the |
|
binding document describing the node's interrupt parent. |
|
|
|
A single IRQ that handles error conditions is specified by this |
|
property. (Typically shared with port-write). |
|
|
|
- fsl,srio-rmu-handle: |
|
Usage: required if rmu node is defined |
|
Value type: <phandle> |
|
Definition: A single <phandle> value that points to the RMU. |
|
(See srio-rmu.txt for more details on RMU node binding) |
|
|
|
Port Child Nodes: There should a port child node for each port that exists in |
|
the controller. The ports are numbered starting at one (1) and should have |
|
the following properties: |
|
|
|
- cell-index |
|
Usage: required |
|
Value type: <u32> |
|
Definition: A standard property. Matches the port id. |
|
|
|
- ranges |
|
Usage: required if local access windows preset |
|
Value type: <prop-encoded-array> |
|
Definition: A standard property. Utilized to describe the memory mapped |
|
IO space utilized by the controller. This corresponds to the |
|
setting of the local access windows that are targeted to this |
|
SRIO port. |
|
|
|
- fsl,liodn |
|
Usage: optional-but-recommended (for devices with PAMU) |
|
Value type: <prop-encoded-array> |
|
Definition: The logical I/O device number for the PAMU (IOMMU) to be |
|
correctly configured for SRIO accesses. The property should |
|
not exist on devices that do not support PAMU. |
|
|
|
For HW (ie, the P4080) that only supports a LIODN for both |
|
memory and maintenance transactions then a single LIODN is |
|
represented in the property for both transactions. |
|
|
|
For HW (ie, the P304x/P5020, etc) that supports an LIODN for |
|
memory transactions and a unique LIODN for maintenance |
|
transactions then a pair of LIODNs are represented in the |
|
property. Within the pair, the first element represents the |
|
LIODN associated with memory transactions and the second element |
|
represents the LIODN associated with maintenance transactions |
|
for the port. |
|
|
|
Note: All other standard properties (see the Devicetree Specification) |
|
are allowed but are optional. |
|
|
|
Example: |
|
|
|
rapidio: rapidio@ffe0c0000 { |
|
#address-cells = <2>; |
|
#size-cells = <2>; |
|
reg = <0xf 0xfe0c0000 0 0x11000>; |
|
compatible = "fsl,srio"; |
|
interrupts = <16 2 1 11>; /* err_irq */ |
|
fsl,srio-rmu-handle = <&rmu>; |
|
ranges; |
|
|
|
port1 { |
|
cell-index = <1>; |
|
#address-cells = <2>; |
|
#size-cells = <2>; |
|
fsl,liodn = <34>; |
|
ranges = <0 0 0xc 0x20000000 0 0x10000000>; |
|
}; |
|
|
|
port2 { |
|
cell-index = <2>; |
|
#address-cells = <2>; |
|
#size-cells = <2>; |
|
fsl,liodn = <48>; |
|
ranges = <0 0 0xc 0x30000000 0 0x10000000>; |
|
}; |
|
};
|
|
|