Merge pull request pulp-platform#42 from WRoenninger/axi_lite_mailbox

AXI4-Lite Mailbox implementation

Bender.yml

@@ -31,6 +31,7 @@ sources:
   - src/axi_join.sv
   - src/axi_lite_demux.sv
   - src/axi_lite_join.sv
+  - src/axi_lite_mailbox.sv
   - src/axi_lite_mux.sv
   - src/axi_lite_to_apb.sv
   - src/axi_lite_to_axi.sv
@@ -59,6 +60,7 @@ sources:
       - test/tb_axi_delayer.sv
       - test/tb_axi_lite_to_apb.sv
       - test/tb_axi_lite_to_axi.sv
+      - test/tb_axi_lite_mailbox.sv
       - test/tb_axi_lite_xbar.sv
       - test/tb_axi_to_axi_lite.sv
       - test/tb_axi_xbar_pkg.sv

CHANGELOG.md

@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ## Unreleased
 
 ### Added
+- Add `axi_lite_mailbox`: AXI4-Lite mailbox.
 
 ### Changed
 

README.md

@@ -18,6 +18,7 @@ This is the implementation of the AMBA AXI protocol developed as part of the PUL
 | [`axi_join.sv`](src/axi_join.sv)                     | A connector that joins two AXI interfaces.                                                        |                             |
 | [`axi_lite_demux.sv`](src/axi_lite_demux.sv)         | Demultiplexes an AXI4-Lite bus from one slave port to multiple master ports.                      | [Doc](doc/axi_lite_demux.md)|
 | [`axi_lite_join.sv`](src/axi_lite_join.sv)           | A connector that joins two AXI-Lite interfaces.                                                   |                             |
+| [`axi_lite_mailbox.sv`](src/axi_lite_mailbox.sv)     | A AXI4-Lite Mailbox with two slave ports and usage triggered irq.                                 | [Doc](doc/axi_lite_mailbox.md) |
 | [`axi_lite_mux.sv`](src/axi_lite_mux.sv)             | Multiplexes AXI4-Lite slave ports down to one master port.                                        | [Doc](doc/axi_lite_mux.md)  |
 | [`axi_lite_to_apb.sv`](src/axi_lite_to_apb.sv)       | An AXI4-Lite to APB4 adapter.                                                                     |                             |
 | [`axi_lite_to_axi.sv`](src/axi_lite_to_axi.sv)       | An AXI4-Lite to AXI4 adapter.                                                                     |                             |

doc/README.md

@@ -5,6 +5,7 @@ This folder contains the documentation of the following modules:
 - [AXI Crossbar (`axi_xbar`)](axi_xbar.md)
 - [AXI Demultiplexer (`axi_demux`)](axi_demux.md)
 - [AXI Multiplexer (`axi_mux`)](axi_mux.md)
+- [AXI4-Lite Mailbox (`axi_lite_mailbox`)](axi_lite_mailbox.md)
 
 
 ## Relevant Specifications

scripts/run_vsim.sh

@@ -34,3 +34,4 @@ call_vsim tb_axi_xbar -t 1ns -coverage -voptargs="+acc +cover=bcesfx"
 call_vsim tb_axi_lite_xbar -t 1ns -coverage -voptargs="+acc +cover=bcesfx"
 call_vsim tb_axi_cdc
 call_vsim tb_axi_lite_to_apb -t 1ns -coverage -voptargs="+acc +cover=bcesfx"
+call_vsim tb_axi_lite_mailbox -t 1ns -coverage -voptargs="+acc +cover=bcesfx"