lookup_serial: make write_ready independent of write_valid

pulp-platform · Jun 28, 2024 · 62fc88f · 62fc88f
1 parent 0e1fb67
commit 62fc88f
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diff --git a/Changelog.md b/Changelog.md
@@ -6,6 +6,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 
 ## Unreleased
+### Fixed
+- lookup_serial: Make `write_ready_o` independent of `write_valid_i`.
 
 ## 0.1.1 - 28.06.2024
 ### Added

diff --git a/src/snitch_icache_lookup_serial.sv b/src/snitch_icache_lookup_serial.sv
@@ -111,7 +111,7 @@ module snitch_icache_lookup_serial #(
     tag_wdata  = {1'b1, write_error_i, write_tag_i};
     tag_write  = 1'b0;
 
-    write_ready_o = 1'b0;
+    write_ready_o = 1'b1;
     in_ready_o    = 1'b0;
     req_valid     = 1'b0;
 
@@ -120,12 +120,12 @@ module snitch_icache_lookup_serial #(
       tag_enable = '1;
       tag_wdata  = '0;
       tag_write  = 1'b1;
+      write_ready_o = 1'b0;
     end else if (write_valid_i) begin
       // Write a refill request
       tag_addr      = write_addr_i;
       tag_enable    = $unsigned(1 << write_set_i);
       tag_write     = 1'b1;
-      write_ready_o = 1'b1;
     end else if (in_valid_i) begin
       // Check cache
       tag_enable = '1;