blob: 0acdfa6d62a4d026d2ff49d4123723f6580d68b5 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
Xilinx LogiCORE Partial Reconfig Decoupler Softcore
The Xilinx LogiCORE Partial Reconfig Decoupler manages one or more
decouplers / fpga bridges.
The controller can decouple/disable the bridges which prevents signal
changes from passing through the bridge. The controller can also
couple / enable the bridges which allows traffic to pass through the
bridge normally.
Xilinx LogiCORE Dynamic Function eXchange(DFX) AXI shutdown manager
Softcore is compatible with the Xilinx LogiCORE pr-decoupler.
The Dynamic Function eXchange AXI shutdown manager prevents AXI traffic
from passing through the bridge. The controller safely handles AXI4MM
and AXI4-Lite interfaces on a Reconfigurable Partition when it is
undergoing dynamic reconfiguration, preventing the system deadlock
that can occur if AXI transactions are interrupted by DFX
The Driver supports only MMIO handling. A PR region can have multiple
PR Decouplers which can be handled independently or chained via decouple/
decouple_status signals.
Required properties:
- compatible : Should contain "xlnx,pr-decoupler-1.00" followed by
"xlnx,pr-decoupler" or
"xlnx,dfx-axi-shutdown-manager-1.00" followed by
"xlnx,dfx-axi-shutdown-manager"
- regs : base address and size for decoupler module
- clocks : input clock to IP
- clock-names : should contain "aclk"
See Documentation/devicetree/bindings/fpga/fpga-region.txt and
Documentation/devicetree/bindings/fpga/fpga-bridge.txt for generic bindings.
Example:
Partial Reconfig Decoupler:
fpga-bridge@100000450 {
compatible = "xlnx,pr-decoupler-1.00",
"xlnx-pr-decoupler";
regs = <0x10000045 0x10>;
clocks = <&clkc 15>;
clock-names = "aclk";
bridge-enable = <0>;
};
Dynamic Function eXchange AXI shutdown manager:
fpga-bridge@100000450 {
compatible = "xlnx,dfx-axi-shutdown-manager-1.00",
"xlnx,dfx-axi-shutdown-manager";
regs = <0x10000045 0x10>;
clocks = <&clkc 15>;
clock-names = "aclk";
bridge-enable = <0>;
};
|
