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axi_mux: Remove dependency of ready on valid #408

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axi_mux: Remove dependency of ready on valid #408

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20 changes: 13 additions & 7 deletions src/axi_mux.sv
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Original file line number Diff line number Diff line change
Expand Up @@ -296,17 +296,23 @@ module axi_mux #(
aw_ready = 1'b1;
lock_aw_valid_d = 1'b0;
load_aw_lock = 1'b1;
w_fifo_push = 1'b1;
end
end else begin
if (!w_fifo_full && aw_valid) begin
mst_aw_valid = 1'b1;
w_fifo_push = 1'b1;
if (!w_fifo_full) begin
if (mst_aw_ready) begin
aw_ready = 1'b1;
end else begin
// go to lock if transaction not in this cycle
lock_aw_valid_d = 1'b1;
load_aw_lock = 1'b1;
end
if (aw_valid) begin
mst_aw_valid = 1'b1;
if (!mst_aw_ready) begin
// go to lock if transaction not in this cycle
lock_aw_valid_d = 1'b1;
load_aw_lock = 1'b1;
// remember if it was a unicast transaction
end else begin
w_fifo_push = 1'b1;
end
end
end
end
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