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Make RAM size configurable in compliance test system

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Switch from hardcoding 64 kB in two places to a fixed parameter.
This commit is contained in:
Philipp Wagner 2020-05-08 13:21:16 +01:00 • committed by Philipp Wagner
parent 9d976c7ab7
commit 42eee90cf8
1 changed files with 6 additions and 4 deletions
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10
dv/riscv_compliance/rtl/ibex_riscv_compliance.sv
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@ -42,8 +42,10 @@ module ibex_riscv_compliance (
TestUtilDevice
} bus_device_e;
localparam NrDevices = 2;
localparam NrHosts = 3;
localparam int unsigned NrDevices = 2;
localparam int unsigned NrHosts = 3;
// 64 kB RAM. Must be a power of 2. Check bus configuration below when changing.
localparam int unsigned RamSizeWords = 64*1024/4;
// host and device signals
logic host_req [NrHosts];
@ -70,7 +72,7 @@ module ibex_riscv_compliance (
logic [31:0] cfg_device_addr_base [NrDevices];
logic [31:0] cfg_device_addr_mask [NrDevices];
assign cfg_device_addr_base[Ram] = 32'h0;
assign cfg_device_addr_mask[Ram] = ~32'hFFFF; // 64 kB
assign cfg_device_addr_mask[Ram] = ~32'(RamSizeWords * 4 - 1);
assign cfg_device_addr_base[TestUtilDevice] = 32'h20000;
assign cfg_device_addr_mask[TestUtilDevice] = ~32'h3FF; // 1 kB
@ -160,7 +162,7 @@ module ibex_riscv_compliance (
// SRAM block for instruction and data storage
ram_1p #(
.Depth(64*1024/4)
.Depth(RamSizeWords)
) u_ram (
.clk_i (clk_sys ),
.rst_ni (rst_sys_n ),