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Add reset_strategy parameter

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The reset_strategy parameter controls how much reset to apply to
SERV. It can be set to MINI for the default behaviour, or NONE to
only apply reset where absolutely needed and rely on POR to clear
FFs
This commit is contained in:
Olof Kindgren
2020-10-09 23:43:30 +02:00
parent 44287ed244
commit c1b8471678
7 changed files with 46 additions and 12 deletions
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5
serving/serving.v
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@@ -34,6 +34,7 @@ module serving
parameter memfile = "";
parameter memsize = 8192;
parameter RESET_STRATEGY = "NONE";
parameter WITH_CSR = 1;
localparam regs = 32+WITH_CSR*4;
@@ -104,7 +105,7 @@ module serving
serving_mux mux
(.i_clk (i_clk),
.i_rst (i_rst),
.i_rst (i_rst & (RESET_STRATEGY != "NONE")),
.i_wb_cpu_adr (wb_dbus_adr),
.i_wb_cpu_dat (wb_dbus_dat),
@@ -168,6 +169,7 @@ module serving
serv_rf_ram_if
#(.width (rf_width),
.reset_strategy (RESET_STRATEGY),
.csr_regs (WITH_CSR*4))
rf_ram_if
(.i_clk (i_clk),
@@ -193,6 +195,7 @@ module serving
serv_top
#(.RESET_PC (32'h0000_0000),
.RESET_STRATEGY (RESET_STRATEGY),
.WITH_CSR (WITH_CSR))
cpu
(