blob: 348817edde07a6fa68881b00a3786d313bbdbf58 [file] [log] [blame]
// Copyright lowRISC contributors.
// Licensed under the Apache License, Version 2.0, see LICENSE for details.
// SPDX-License-Identifier: Apache-2.0
#include <iostream>
#include <string>
#include "verilated_toplevel.h"
#include "verilator_memutil.h"
#include "verilator_sim_ctrl.h"
int main(int argc, char **argv) {
chip_earlgrey_verilator top;
VerilatorMemUtil memutil;
VerilatorSimCtrl &simctrl = VerilatorSimCtrl::GetInstance();
simctrl.SetTop(&top, &top.clk_i, &top.rst_ni,
VerilatorSimCtrlFlags::ResetPolarityNegative);
std::string top_scope("TOP.chip_earlgrey_verilator.top_earlgrey");
std::string ram1p_adv_scope(
"u_prim_ram_1p_adv.u_mem."
"gen_generic.u_impl_generic");
MemArea rom(top_scope + (".u_rom_ctrl.u_rom.u_rom."
"u_prim_rom.gen_generic.u_impl_generic"),
0x4000 / 4, 4);
MemArea ram(top_scope + ".u_ram1p_ram_main." + ram1p_adv_scope, 0x20000 / 4,
4);
MemArea flash(top_scope +
".u_flash_eflash.u_flash.gen_generic.u_impl_generic."
"gen_prim_flash_banks[0].u_prim_flash_bank.u_mem."
"gen_generic.u_impl_generic",
0x100000 / 8, 8);
MemArea otp(top_scope + ".u_otp_ctrl.u_otp.gen_generic.u_impl_generic." +
ram1p_adv_scope,
0x4000 / 4, 4);
memutil.RegisterMemoryArea("rom", 0x8000, &rom);
memutil.RegisterMemoryArea("ram", 0x10000000u, &ram);
memutil.RegisterMemoryArea("flash", 0x20000000u, &flash);
memutil.RegisterMemoryArea("otp", 0x40000000u /* (bogus LMA) */, &otp);
simctrl.RegisterExtension(&memutil);
// The initial reset delay must be long enough such that pwr/rst/clkmgr will
// release clocks to the entire design. This allows for synchronous resets
// to appropriately propagate.
// The reset duration must be appropriately sized to the divider for clk_aon
// in chip_earlgrey_verilator.sv. It must be at least 2 cycles of clk_aon.
simctrl.SetInitialResetDelay(500);
simctrl.SetResetDuration(10);
std::cout << "Simulation of OpenTitan Earl Grey" << std::endl
<< "=================================" << std::endl
<< std::endl;
return simctrl.Exec(argc, argv).first;
}