[rv_dm] Return a TL-UL error on writes to ROM region

See lowRISC#14200, lowRISC#14653 and lowRISC#14921 for context. Signed-off-by: Michael Schaffner <[email protected]>
msfschaffner · Sep 27, 2022 · b0f3fa2 · b0f3fa2
1 parent 81dec1a
commit b0f3fa2
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/hw/ip/rv_dm/rtl/rv_dm.sv b/hw/ip/rv_dm/rtl/rv_dm.sv
@@ -369,7 +369,9 @@ module rv_dm
     .Outstanding(1),
     .ByteAccess(1),
     .CmdIntgCheck(1),
-    .EnableRspIntgGen(1)
+    .EnableRspIntgGen(1),
+    // This is a ROM region, hence write requests are not expected.
+    .ErrOnRead(1)
   ) tl_adapter_device_mem (
     .clk_i,
     .rst_ni,