hw: Add RegAdaptMemCut inside axi_to_reg_v2

pulp-platform · Feb 23, 2024 · 74f073b · 74f073b
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diff --git a/docs/um/arch.md b/docs/um/arch.md
@@ -151,6 +151,7 @@ The internal interconnect exposes the following parameters:
 | `RegMax(Read|Write)Txns`    | `dw_bt`      | Max. inflight transactions at Regbus AMO filter   |
 | `RegAmoNumCuts`             | `aw_bt`      | Number of timing cuts inside Regbus AMO filter    |
 | `RegAmoPostCut`             | `bit`        | Whether to insert a cut after Regbus AMO filter   |
+| `RegAdaptMemCut`            | `bit`        | Whether to insert a cut inside AXI-to-Rb. adapter |
 | `(Axi|Reg)ExtNum(Mst|Slv)`  | `0..15`      | AXI4 and Regbus number of external Mgrs. or Subs. |
 | `(Axi|Reg)ExtNumRules`      | `0..15`      | AXI4 and Regbus number of external address rules  |
 | `(Axi|Reg)ExtRegion*`       | `doub_bt`    | AXI4 and Regbus external address regions          |

diff --git a/hw/cheshire_pkg.sv b/hw/cheshire_pkg.sv
@@ -105,6 +105,7 @@ package cheshire_pkg;
     dw_bt   RegMaxWriteTxns;
     aw_bt   RegAmoNumCuts;
     bit     RegAmoPostCut;
+    bit     RegAdaptMemCut;
     // External AXI ports (limited number of ports and rules)
     bit     [MaxExtAxiMstWidth-1:0]     AxiExtNumMst;
     bit     [MaxExtAxiSlvWidth-1:0]     AxiExtNumSlv;
@@ -535,6 +536,7 @@ package cheshire_pkg;
     RegMaxWriteTxns   : 8,
     RegAmoNumCuts     : 1,
     RegAmoPostCut     : 1,
+    RegAdaptMemCut    : 1,
     // RTC
     RtcFreq           : 32768,
     // Features

diff --git a/hw/cheshire_soc.sv b/hw/cheshire_soc.sv
@@ -361,7 +361,8 @@ module cheshire_soc import cheshire_pkg::*; #(
     .AxiDataWidth ( Cfg.AxiDataWidth ),
     .AxiIdWidth   ( AxiSlvIdWidth    ),
     .AxiUserWidth ( Cfg.AxiUserWidth ),
-    .RegDataWidth ( 32'd32 ),
+    .RegDataWidth ( 32 ),
+    .CutMemReqs   ( Cfg.RegAdaptMemCut ),
     .axi_req_t    ( axi_slv_req_t ),
     .axi_rsp_t    ( axi_slv_rsp_t ),
     .reg_req_t    ( reg_req_t ),