Implemented basic HiFive1-like platform with PLL,tracing etc.
This commit is contained in:
parent
b28595445c
commit
a899d30556
2
dbt-core
2
dbt-core
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@ -1 +1 @@
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Subproject commit 34abe11e782335ae02dd74a3e47ae8bb366abc25
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Subproject commit 31263d4aaa6a7f01914c2decead091dc968f30d3
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@ -16,14 +16,17 @@ namespace sysc {
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class system: sc_core::sc_module {
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public:
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SC_HAS_PROCESS(system);
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system(sc_core::sc_module_name nm);
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virtual ~system();
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sc_core::sc_vector<tlm::tlm_signal<sc_dt::sc_logic>> s_gpio;
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private:
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sc_core::sc_vector<tlm::tlm_signal<sc_dt::sc_logic>> s_gpio;
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sc_core::sc_signal<bool> s_rst_n;
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sysc::platform i_platform;
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sysc::terminal i_terminal;
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void gen_por();
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};
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}
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@ -47,13 +47,17 @@ class aon : public sc_core::sc_module, public scc::tlm_target<> {
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public:
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SC_HAS_PROCESS(aon);
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sc_core::sc_in<sc_core::sc_time> clk_i;
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sc_core::sc_in<bool> rst_i;
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sc_core::sc_in<bool> erst_n_i;
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sc_core::sc_out<sc_core::sc_time> lfclkc_o;
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sc_core::sc_out<bool> rst_o;
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aon(sc_core::sc_module_name nm);
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virtual ~aon() override; // need to keep it in source file because of fwd declaration of aon_regs
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protected:
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void start_of_simulation() override;
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void clock_cb();
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void reset_cb();
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void reset_internal_cb();
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sc_core::sc_time clk;
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std::unique_ptr<aon_regs> regs;
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};
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@ -134,6 +134,7 @@ protected:
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void start_of_simulation();
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void run();
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void clk_cb();
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void rst_cb();
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void sw_irq_cb();
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void timer_irq_cb();
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void global_irq_cb();
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@ -95,7 +95,7 @@ public:
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inline sysc::prci_regs::prci_regs(sc_core::sc_module_name nm)
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: sc_core::sc_module(nm)
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, NAMED(hfrosccfg, r_hfrosccfg, 0, *this)
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, NAMED(hfxosccfg, r_hfxosccfg, 0, *this)
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, NAMED(hfxosccfg, r_hfxosccfg, 0x40000000, *this)
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, NAMED(pllcfg, r_pllcfg, 0, *this)
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, NAMED(plloutdiv, r_plloutdiv, 0, *this)
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, NAMED(coreclkcfg, r_coreclkcfg, 0, *this)
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@ -77,8 +77,13 @@ protected:
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void forward_pin_input(unsigned int tag, tlm::tlm_signal_gp<sc_logic>& gp);
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void iof_input(unsigned int tag, unsigned iof_idx, tlm::tlm_signal_gp<>& gp, sc_core::sc_time& delay);
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sc_core::sc_time clk;
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std::array<bool, 32> last_iof0, last_iof1;
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std::unique_ptr<gpio_regs> regs;
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std::shared_ptr<sysc::WsHandler> handler;
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private:
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tlm::tlm_phase write_output(tlm::tlm_signal_gp<sc_dt::sc_logic>& gp, size_t i, sc_dt::sc_logic val);
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void enable_outputs(uint32_t new_data);
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};
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} /* namespace sysc */
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@ -63,6 +63,8 @@ public:
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sc_core::sc_vector<tlm::tlm_signal_initiator_socket<sc_dt::sc_logic>> pins_o;
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sc_core::sc_vector<tlm::tlm_signal_target_socket<sc_dt::sc_logic>> pins_i;
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sc_core::sc_in<bool> erst_n;
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platform(sc_core::sc_module_name nm);
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private:
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@ -46,18 +46,21 @@ class prci_regs;
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class prci : public sc_core::sc_module, public scc::tlm_target<> {
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public:
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SC_HAS_PROCESS(prci);
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sc_core::sc_in<sc_core::sc_time> clk_i;
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sc_core::sc_port<sc_core::sc_signal_in_if<sc_core::sc_time>,1,SC_ZERO_OR_MORE_BOUND> hfxosc_i;
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sc_core::sc_in<bool> rst_i;
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sc_core::sc_out<sc_core::sc_time> hfclk_o;
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prci(sc_core::sc_module_name nm);
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virtual ~prci() override; // need to keep it in source file because of fwd declaration of prci_regs
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protected:
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void clock_cb();
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void hfxosc_cb();
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void reset_cb();
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void hfrosc_en_cb();
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sc_core::sc_time clk;
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void hfxosc_en_cb();
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void update_hfclk();
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sc_core::sc_time hfxosc_clk, hfrosc_clk, pll_clk, hfclk;
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std::unique_ptr<prci_regs> regs;
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sc_core::sc_event hfrosc_en_evt;
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sc_core::sc_event hfrosc_en_evt, hfxosc_en_evt;
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};
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} /* namespace sysc */
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@ -3,17 +3,17 @@ FILE(GLOB RiscVSCHeaders *.h */*.h)
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FILE(GLOB RiscvSCSources sysc/*.cpp)
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set(LIB_HEADERS ${RiscVSCHeaders} )
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set(LIB_SOURCES ${RiscvSCSources}
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)
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set(LIB_SOURCES ${RiscvSCSources} )
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set(APP_HEADERS )
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set(APP_SOURCES sc_main.cpp
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)
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set(APP_SOURCES sc_main.cpp)
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# Define two variables in order not to repeat ourselves.
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set(LIBRARY_NAME risc-v.sc)
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## the following setting needs to be consistent with the library
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#add_definitions(-DSC_DEFAULT_WRITER_POLICY=SC_MANY_WRITERS)
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# Define the library
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add_library(${LIBRARY_NAME} ${LIB_SOURCES})
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@ -54,6 +54,16 @@ const size_t SUCCESS = 0;
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const size_t ERROR_UNHANDLED_EXCEPTION = 2;
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} // namespace
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#include "sysc/kernel/sc_externs.h"
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int
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main( int argc, char* argv[]){
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#ifdef _POSIX_SOURCE
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putenv(const_cast<char*>("SC_SIGNAL_WRITE_CHECK=DISABLE"));
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putenv(const_cast<char*>("SC_VCD_SCOPES=ENABLE"));
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#endif
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return sc_core::sc_elab_and_sim( argc, argv );
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}
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int sc_main(int argc, char *argv[]) {
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// sc_report_handler::set_handler(my_report_handler);
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scc::Logger<>::reporting_level() = logging::ERROR;
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@ -159,11 +169,15 @@ int sc_main(int argc, char *argv[]) {
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///////////////////////////////////////////////////////////////////////////
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// run simulation
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///////////////////////////////////////////////////////////////////////////
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try {
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if(vm.count("max_time")){
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sc_core::sc_time max_time = scc::parse_from_string(vm["max_time"].as<std::string>());
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sc_core::sc_start(max_time);
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} else
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sc_core::sc_start();
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} catch(sc_core::sc_report& rep){
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CLOG(FATAL, SystemC)<<"IWEF"[rep.get_severity()]<<"("<<rep.get_id()<<") "<<rep.get_msg_type()<<": "<<rep.get_msg()<<std::endl;
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}
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if (!sc_core::sc_end_of_simulation_invoked()) sc_core::sc_stop();
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return 0;
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}
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@ -45,14 +45,19 @@ aon::aon(sc_core::sc_module_name nm)
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: sc_core::sc_module(nm)
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, tlm_target<>(clk)
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, NAMED(clk_i)
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, NAMED(rst_i)
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, NAMED(erst_n_i)
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, NAMED(lfclkc_o)
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, NAMED(rst_o)
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, NAMEDD(aon_regs, regs) {
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regs->registerResources(*this);
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SC_METHOD(clock_cb);
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sensitive << clk_i;
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SC_METHOD(reset_cb);
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sensitive << rst_i;
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dont_initialize();
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sensitive << erst_n_i;
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}
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void aon::start_of_simulation() {
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rst_o=true;
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}
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void aon::clock_cb() {
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@ -62,10 +67,17 @@ void aon::clock_cb() {
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aon::~aon() {}
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void aon::reset_cb() {
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if (rst_i.read())
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if (!erst_n_i.read()){
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regs->reset_start();
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else
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rst_o=true;
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} else {
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regs->reset_stop();
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rst_o=false;
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}
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lfclkc_o.write(sc_core::sc_time(1/32768., sc_core::SC_SEC));
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}
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void aon::reset_internal_cb() {
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}
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} /* namespace sysc */
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@ -101,6 +101,12 @@ public:
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uint32_t get_mode(){ return this->reg.machine_state; }
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inline
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void set_interrupt_execution(bool v){ this->interrupt_sim=v;}
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inline
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bool get_interrupt_execution(){ return this->interrupt_sim;}
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base_type::hart_state<base_type::reg_t>& get_state() { return this->state; }
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void notify_phase(exec_phase p) override {
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@ -241,6 +247,8 @@ core_complex::core_complex(sc_core::sc_module_name name)
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SC_THREAD(run);
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SC_METHOD(clk_cb);
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sensitive << clk_i;
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SC_METHOD(rst_cb);
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sensitive << rst_i;
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SC_METHOD(sw_irq_cb);
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sensitive<<sw_irq_i;
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SC_METHOD(timer_irq_cb);
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@ -299,6 +307,12 @@ void core_complex::disass_output(uint64_t pc, const std::string instr_str) {
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void core_complex::clk_cb() {
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curr_clk = clk_i.read();
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if(curr_clk==SC_ZERO_TIME) cpu->set_interrupt_execution(true);
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}
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void core_complex::rst_cb() {
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if(rst_i.read())
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cpu->set_interrupt_execution(true);
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}
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void core_complex::sw_irq_cb(){
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@ -314,13 +328,19 @@ void core_complex::global_irq_cb(){
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}
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void core_complex::run() {
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wait(sc_core::SC_ZERO_TIME);
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wait(SC_ZERO_TIME); // separate from elaboration phase
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do{
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if(rst_i.read()){
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cpu->reset(reset_address.get_value());
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try {
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vm->start(-1);
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} catch (simulation_stopped &e) {
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wait(rst_i.negedge_event());
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}
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sc_core::sc_stop();
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while(clk_i.read()==SC_ZERO_TIME){
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wait(clk_i.value_changed_event());
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}
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cpu->set_interrupt_execution(false);
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vm->start();
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} while(cpu->get_interrupt_execution());
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sc_stop();
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}
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bool core_complex::read_mem(uint64_t addr, unsigned length, uint8_t *const data, bool is_fetch) {
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@ -73,6 +73,7 @@ gpio::gpio(sc_core::sc_module_name nm)
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}
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auto iof0_i_cb =[this](unsigned int tag, tlm::tlm_signal_gp<bool>& gp,
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tlm::tlm_phase& phase, sc_core::sc_time& delay)->tlm::tlm_sync_enum{
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last_iof0[tag]=gp.get_value();
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this->iof_input(tag, 0, gp, delay);
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return tlm::TLM_COMPLETED;
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};
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@ -83,6 +84,7 @@ gpio::gpio(sc_core::sc_module_name nm)
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}
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auto iof1_i_cb =[this](unsigned int tag, tlm::tlm_signal_gp<bool>& gp,
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tlm::tlm_phase& phase, sc_core::sc_time& delay)->tlm::tlm_sync_enum{
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last_iof1[tag]=gp.get_value();
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this->iof_input(tag, 1, gp, delay);
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return tlm::TLM_COMPLETED;
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};
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@ -99,6 +101,13 @@ gpio::gpio(sc_core::sc_module_name nm)
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}
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return true;
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});
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regs->iof_en.set_write_cb([this](scc::sc_register<uint32_t> ®, uint32_t data) -> bool {
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if (!this->regs->in_reset()) {
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enable_outputs(data);
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reg.put(data);
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}
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return true;
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});
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}
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@ -123,17 +132,47 @@ void gpio::clock_cb() {
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this->clk = clk_i.read();
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}
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tlm::tlm_phase gpio::write_output(tlm::tlm_signal_gp<sc_dt::sc_logic>& gp, size_t i, sc_dt::sc_logic val) {
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sc_core::sc_time delay{SC_ZERO_TIME};
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tlm::tlm_phase phase{ tlm::BEGIN_REQ };
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gp.set_command(tlm::TLM_WRITE_COMMAND);
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gp.set_response_status(tlm::TLM_OK_RESPONSE);
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gp.set_value(val);
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pins_o.at(i)->nb_transport_fw(gp, phase, delay);
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return phase;
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}
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void gpio::update_pins() {
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sc_core::sc_inout_rv<32>::data_type out_val;
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tlm::tlm_signal_gp<sc_dt::sc_logic> gp;
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for(size_t i=0, mask = 1; i<32; ++i, mask<<=1){
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if((regs->iof_en&mask == 0) || (iof0_i[i].size()==0 && iof1_i[i].size()==0)){
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sc_core::sc_time delay{SC_ZERO_TIME};
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tlm::tlm_phase phase{tlm::BEGIN_REQ};
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gp.set_command(tlm::TLM_WRITE_COMMAND);
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gp.set_response_status(tlm::TLM_OK_RESPONSE);
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gp.set_value(regs->r_output_en&mask?regs->r_port&mask?sc_dt::Log_1:sc_dt::Log_0:sc_dt::Log_Z);
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pins_o.at(i)->nb_transport_fw(gp, phase, delay);
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auto val = regs->r_output_en&mask?
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regs->r_port&mask?
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sc_dt::Log_1:
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sc_dt::Log_0:
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sc_dt::Log_Z;
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tlm::tlm_phase phase = write_output(gp, i, val);
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}
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}
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}
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void gpio::enable_outputs(uint32_t new_data) {
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auto changed_bits = regs->r_iof_en^new_data;
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tlm::tlm_signal_gp<sc_dt::sc_logic> gp;
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for(size_t i=0, mask=1; i<32; ++i, mask<<=1){
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if(changed_bits&mask){
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if(new_data&mask){
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if((regs->r_iof_sel&mask)==0 && iof0_i[i].size()>0){
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tlm::tlm_phase phase = write_output(gp, i, last_iof0[i]?sc_dt::Log_1:sc_dt::Log_0);
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} else if((regs->r_iof_sel&mask)==1 && iof1_i[i].size()>0)
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tlm::tlm_phase phase = write_output(gp, i, last_iof1[i]?sc_dt::Log_1:sc_dt::Log_0);
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} else {
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auto val = regs->r_output_en&mask?
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regs->r_port&mask?sc_dt::Log_1:sc_dt::Log_0:
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sc_dt::Log_Z;
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tlm::tlm_phase phase = write_output(gp, i, val);
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}
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}
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}
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}
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@ -187,7 +226,8 @@ void gpio::iof_input(unsigned int tag, unsigned iof_idx, tlm::tlm_signal_gp<>& g
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tlm::tlm_phase phase{tlm::BEGIN_REQ};
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tlm::tlm_signal_gp<sc_logic> new_gp;
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new_gp.set_command(tlm::TLM_WRITE_COMMAND);
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new_gp.set_value(gp.get_value()?sc_dt::Log_1:sc_dt::Log_0);
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auto val = gp.get_value();
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new_gp.set_value(val?sc_dt::Log_1:sc_dt::Log_0);
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new_gp.copy_extensions_from(gp);
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socket->nb_transport_fw(new_gp, phase, delay); // we don't care about phase and sync enum
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}
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@ -42,6 +42,7 @@ platform::platform(sc_core::sc_module_name nm)
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: sc_core::sc_module(nm)
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, NAMED(pins_o, 32)
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, NAMED(pins_i, 32)
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, NAMED(erst_n)
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, NAMED(i_core_complex)
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, NAMED(i_router, 12, 1)
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, NAMED(i_uart0)
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@ -85,7 +86,8 @@ platform::platform(sc_core::sc_module_name nm)
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i_gpio0.clk_i(s_tlclk);
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i_plic.clk_i(s_tlclk);
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i_aon.clk_i(s_tlclk);
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i_prci.clk_i(s_tlclk);
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i_aon.lfclkc_o(s_lfclk);
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i_prci.hfclk_o(s_tlclk); // clock driver
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i_clint.tlclk_i(s_tlclk);
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i_clint.lfclk_i(s_lfclk);
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i_core_complex.clk_i(s_tlclk);
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@ -97,11 +99,13 @@ platform::platform(sc_core::sc_module_name nm)
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i_qspi2.rst_i(s_rst);
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i_gpio0.rst_i(s_rst);
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i_plic.rst_i(s_rst);
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i_aon.rst_i(s_rst);
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i_aon.rst_o(s_rst);
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i_prci.rst_i(s_rst);
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i_clint.rst_i(s_rst);
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i_core_complex.rst_i(s_rst);
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i_aon.erst_n_i(erst_n);
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i_clint.mtime_int_o(s_mtime_int);
|
||||
i_clint.msip_int_o(s_msie_int);
|
||||
|
||||
|
@ -124,17 +128,7 @@ platform::platform(sc_core::sc_module_name nm)
|
|||
i_uart1.rx_i(s_dummy_sck_o[0]);
|
||||
i_uart1.irq_o(s_dummy[0]);
|
||||
|
||||
SC_THREAD(gen_reset);
|
||||
|
||||
for(auto& sock:s_dummy_sck_i) sock.error_if_no_callback=false;
|
||||
}
|
||||
|
||||
void platform::gen_reset() {
|
||||
s_tlclk = 10_ns;
|
||||
s_lfclk = 30517_ns;
|
||||
s_rst = true;
|
||||
wait(10_ns);
|
||||
s_rst = false;
|
||||
}
|
||||
|
||||
} /* namespace sysc */
|
||||
|
|
|
@ -43,24 +43,35 @@ namespace sysc {
|
|||
|
||||
prci::prci(sc_core::sc_module_name nm)
|
||||
: sc_core::sc_module(nm)
|
||||
, tlm_target<>(clk)
|
||||
, NAMED(clk_i)
|
||||
, tlm_target<>(hfclk)
|
||||
, NAMED(rst_i)
|
||||
, NAMED(hfclk_o)
|
||||
, NAMEDD(prci_regs, regs) {
|
||||
regs->registerResources(*this);
|
||||
SC_METHOD(clock_cb);
|
||||
sensitive << clk_i;
|
||||
SC_METHOD(reset_cb);
|
||||
sensitive << rst_i;
|
||||
dont_initialize();
|
||||
SC_METHOD(hfxosc_cb);
|
||||
sensitive << hfxosc_i;
|
||||
SC_METHOD(hfrosc_en_cb);
|
||||
sensitive << hfrosc_en_evt;
|
||||
dont_initialize();
|
||||
|
||||
regs->hfxosccfg.set_write_cb([this](scc::sc_register<uint32_t> ®, uint32_t data) -> bool {
|
||||
reg.put(data);
|
||||
if (this->regs->r_hfxosccfg.hfxoscen==1) { // check rosc_en
|
||||
this->hfxosc_en_evt.notify(1, sc_core::SC_US);
|
||||
} else {
|
||||
this->hfxosc_en_evt.notify(SC_ZERO_TIME);
|
||||
}
|
||||
return true;
|
||||
});
|
||||
regs->hfrosccfg.set_write_cb([this](scc::sc_register<uint32_t> ®, uint32_t data) -> bool {
|
||||
reg.put(data);
|
||||
if (this->regs->r_hfrosccfg & (1 << 30)) { // check rosc_en
|
||||
if (this->regs->r_hfrosccfg.hfroscen==1) { // check rosc_en
|
||||
this->hfrosc_en_evt.notify(1, sc_core::SC_US);
|
||||
} else {
|
||||
this->hfrosc_en_evt.notify(SC_ZERO_TIME);
|
||||
}
|
||||
return true;
|
||||
});
|
||||
|
@ -70,13 +81,15 @@ prci::prci(sc_core::sc_module_name nm)
|
|||
if (pllcfg.pllbypass == 0 && pllcfg.pllq != 0) { // set pll_lock if pll is selected
|
||||
pllcfg.plllock = 1;
|
||||
}
|
||||
update_hfclk();
|
||||
return true;
|
||||
});
|
||||
}
|
||||
|
||||
void prci::clock_cb() {
|
||||
this->clk = clk_i.read();
|
||||
|
||||
regs->plloutdiv.set_write_cb([this](scc::sc_register<uint32_t> ®, uint32_t data) -> bool {
|
||||
reg.put(data);
|
||||
update_hfclk();
|
||||
return true;
|
||||
});
|
||||
hfxosc_clk=62.5_ns;
|
||||
}
|
||||
|
||||
prci::~prci() {}
|
||||
|
@ -84,12 +97,49 @@ prci::~prci() {}
|
|||
void prci::reset_cb() {
|
||||
if (rst_i.read())
|
||||
regs->reset_start();
|
||||
else
|
||||
else {
|
||||
regs->reset_stop();
|
||||
this->hfxosc_en_evt.notify(1, sc_core::SC_US);
|
||||
}
|
||||
}
|
||||
|
||||
void prci::hfxosc_cb() {
|
||||
this->regs->r_hfxosccfg.hfxoscrdy=0;
|
||||
this->hfxosc_en_evt.notify(1, sc_core::SC_US);
|
||||
|
||||
}
|
||||
|
||||
void prci::hfxosc_en_cb() {
|
||||
update_hfclk();
|
||||
if(regs->r_hfxosccfg.hfxoscen==1)// set rosc_rdy
|
||||
regs->r_hfxosccfg.hfxoscrdy =1;
|
||||
else
|
||||
regs->r_hfxosccfg.hfxoscrdy =0;
|
||||
}
|
||||
|
||||
void prci::hfrosc_en_cb() {
|
||||
regs->r_hfrosccfg |= (1 << 31); // set rosc_rdy
|
||||
update_hfclk();
|
||||
auto& hfrosccfg=regs->r_hfrosccfg;
|
||||
if(regs->r_hfrosccfg.hfroscen==1) {// set rosc_rdy
|
||||
regs->r_hfrosccfg.hfroscrdy =1;
|
||||
} else {
|
||||
regs->r_hfrosccfg.hfroscrdy =0;
|
||||
}
|
||||
}
|
||||
|
||||
void prci::update_hfclk() {
|
||||
auto& hfrosccfg=regs->r_hfrosccfg;
|
||||
auto& pllcfg=regs->r_pllcfg;
|
||||
auto& plldiv=regs->r_plloutdiv;
|
||||
hfrosc_clk = sc_core::sc_time(((hfrosccfg.hfroscdiv+1)*1.0)/(1125000.0*(hfrosccfg.hfrosctrim+1)), sc_core::SC_SEC);
|
||||
auto pll_ref = pllcfg.pllrefsel==1?hfxosc_clk:hfrosc_clk;
|
||||
auto r = pllcfg.pllr+1;
|
||||
auto f = 2*(pllcfg.pllf+1);
|
||||
auto q = 1<<pllcfg.pllq;
|
||||
auto pll_out = pllcfg.pllbypass==1 || pllcfg.plllock==0?pll_ref:((pll_ref*r)/f)*q;
|
||||
auto pll_res = plldiv&0x100?pll_out:2*pll_out*((plldiv&0x3f)+1);
|
||||
hfclk = pllcfg.pllsel?pll_res:hfrosc_clk;
|
||||
hfclk_o.write(hfclk);
|
||||
}
|
||||
|
||||
} /* namespace sysc */
|
||||
|
|
|
@ -12,19 +12,29 @@ using namespace sysc;
|
|||
system::system(sc_core::sc_module_name nm)
|
||||
: sc_module(nm)
|
||||
, NAMED(s_gpio, 32)
|
||||
, NAMED(s_rst_n)
|
||||
, NAMED(i_platform)
|
||||
, NAMED(i_terminal)
|
||||
{
|
||||
// connect platform
|
||||
i_platform.erst_n(s_rst_n);
|
||||
|
||||
for(auto i=0U; i<s_gpio.size(); ++i){
|
||||
s_gpio[i].in(i_platform.pins_o[i]);
|
||||
i_platform.pins_i[i](s_gpio[i].out);
|
||||
}
|
||||
// i_platform.pins_i(i_platform.pins_o);
|
||||
|
||||
// connect other units
|
||||
s_gpio[17].out(i_terminal.rx_i);
|
||||
i_terminal.tx_o(s_gpio[16].in);
|
||||
SC_THREAD(gen_por);
|
||||
}
|
||||
|
||||
system::~system() {
|
||||
}
|
||||
|
||||
void sysc::system::gen_por() {
|
||||
// single shot
|
||||
s_rst_n = false;
|
||||
wait(10_ns);
|
||||
s_rst_n = true;
|
||||
}
|
||||
|
|
|
@ -134,54 +134,40 @@ void uart::reset_cb() {
|
|||
|
||||
void uart::transmit_data() {
|
||||
uint8_t txdata;
|
||||
sc_core::sc_time delay(SC_ZERO_TIME);
|
||||
sysc::tlm_signal_uart_extension ext;
|
||||
tlm::tlm_phase phase(tlm::BEGIN_REQ);
|
||||
tlm::tlm_signal_gp<> gp;
|
||||
sc_core::sc_time delay(SC_ZERO_TIME);
|
||||
sc_core::sc_time bit_duration(SC_ZERO_TIME);
|
||||
|
||||
gp.set_extension(&ext);
|
||||
ext.tx.data_bits=8;
|
||||
ext.tx.parity=false;
|
||||
|
||||
auto set_bit = [&](bool val){
|
||||
gp.set_command(tlm::TLM_WRITE_COMMAND);
|
||||
gp.set_value(true);
|
||||
gp.set_value(val);
|
||||
tlm::tlm_phase phase(tlm::BEGIN_REQ);
|
||||
tx_o->nb_transport_fw(gp, phase, delay);
|
||||
if(delay<bit_duration) wait(bit_duration-delay);
|
||||
};
|
||||
wait(delay);
|
||||
while(true){
|
||||
set_bit(true);
|
||||
wait(tx_fifo.data_written_event());
|
||||
while(tx_fifo.nb_read(txdata)){
|
||||
regs->r_txdata.full=tx_fifo.num_free()==0;
|
||||
regs->r_ip.txwm=regs->r_txctrl.txcnt<=(7-tx_fifo.num_free())?1:0;
|
||||
auto bit_duration = (regs->r_div.div+1)*clk;
|
||||
sysc::tlm_signal_uart_extension ext;
|
||||
bit_duration = (regs->r_div.div+1)*clk;
|
||||
ext.start_time = sc_core::sc_time_stamp();
|
||||
ext.tx.data_bits=8;
|
||||
ext.tx.parity=false;
|
||||
ext.tx.stop_bits=1+regs->r_txctrl.nstop;
|
||||
ext.tx.baud_rate=static_cast<unsigned>(1/bit_duration.to_seconds());
|
||||
ext.tx.data=txdata;
|
||||
delay=SC_ZERO_TIME;
|
||||
auto start = sc_time_stamp();
|
||||
gp.set_command(tlm::TLM_WRITE_COMMAND);
|
||||
gp.set_value(false);
|
||||
gp.set_extension(&ext);
|
||||
phase=tlm::BEGIN_REQ;
|
||||
tx_o->nb_transport_fw(gp, phase, delay);
|
||||
auto duration = bit_duration*(1+8+1+ext.tx.stop_bits);//start+data+parity+stop
|
||||
auto diff=start+duration-sc_time_stamp();
|
||||
if(diff>SC_ZERO_TIME) wait(diff);
|
||||
delay=SC_ZERO_TIME;
|
||||
gp.set_command(tlm::TLM_WRITE_COMMAND);
|
||||
gp.set_value(true);
|
||||
phase=tlm::BEGIN_REQ;
|
||||
tx_o->nb_transport_fw(gp, phase, delay);
|
||||
|
||||
// if(txdata != '\r') queue.push_back(txdata);
|
||||
// if (queue.size() >> 0 && (txdata == '\n' || txdata == 0)) {
|
||||
// std::string msg(queue.begin(), queue.end()-1);
|
||||
// LOG(INFO) << this->name() << " transmit: '" << msg << "'";
|
||||
// sc_core::sc_time now = sc_core::sc_time_stamp();
|
||||
// if(handler)
|
||||
// sc_comm_singleton::inst().execute([this, msg, now](){
|
||||
// std::stringstream os;
|
||||
// os << "{\"time\":\"" << now << "\",\"message\":\""<<msg<<"\"}";
|
||||
// this->handler->send(os.str());
|
||||
// });
|
||||
// queue.clear();
|
||||
// }
|
||||
set_bit(false); // start bit
|
||||
for(int i = 8; i>0; --i)
|
||||
set_bit(txdata&(1<<(i-1))); // 8 data bits, MSB first
|
||||
set_bit(true); // stop bit 1
|
||||
if(regs->r_txctrl.nstop) set_bit(true); // stop bit 2
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
@ -162,6 +162,7 @@ protected:
|
|||
|
||||
std::array<address_type, 4> addr_mode;
|
||||
|
||||
bool interrupt_sim=false;
|
||||
<%
|
||||
def fcsr = allRegs.find {it.name=='FCSR'}
|
||||
if(fcsr != null) {%>
|
||||
|
|
|
@ -1,5 +1,5 @@
|
|||
////////////////////////////////////////////////////////////////////////////////
|
||||
// Copyright (C) 2017, MINRES Technologies GmbH
|
||||
// Copyright (C) 2017,2018 MINRES Technologies GmbH
|
||||
// All rights reserved.
|
||||
//
|
||||
// Redistribution and use in source and binary forms, with or without
|
||||
|
|
|
@ -179,6 +179,8 @@ struct rv32gc: public arch_if {
|
|||
|
||||
uint64_t get_icount() { return reg.icount;}
|
||||
|
||||
bool should_stop(){return false;}
|
||||
|
||||
inline phys_addr_t v2p(const iss::addr_t& addr){
|
||||
if(addr.space != traits<rv32gc>::MEM ||
|
||||
addr.type == iss::address_type::PHYSICAL ||
|
||||
|
|
|
@ -144,8 +144,12 @@ struct rv32imac: public arch_if {
|
|||
/// deprecated
|
||||
void update_flags(operations op, uint64_t opr1, uint64_t opr2) override {};
|
||||
|
||||
inline
|
||||
uint64_t get_icount() { return reg.icount;}
|
||||
|
||||
inline
|
||||
bool should_stop() { return interrupt_sim;}
|
||||
|
||||
inline phys_addr_t v2p(const iss::addr_t& addr){
|
||||
if(addr.space != traits<rv32imac>::MEM ||
|
||||
addr.type == iss::address_type::PHYSICAL ||
|
||||
|
@ -204,6 +208,7 @@ protected:
|
|||
|
||||
std::array<address_type, 4> addr_mode;
|
||||
|
||||
bool interrupt_sim=false;
|
||||
|
||||
uint32_t get_fcsr(){return 0;}
|
||||
void set_fcsr(uint32_t val){}
|
||||
|
|
|
@ -146,6 +146,8 @@ struct rv64ia: public arch_if {
|
|||
|
||||
uint64_t get_icount() { return reg.icount;}
|
||||
|
||||
bool should_stop(){return false;}
|
||||
|
||||
inline phys_addr_t v2p(const iss::addr_t& addr){
|
||||
if(addr.space != traits<rv64ia>::MEM ||
|
||||
addr.type == iss::address_type::PHYSICAL ||
|
||||
|
|
|
@ -62,6 +62,7 @@ void rv32gc::reset(uint64_t address) {
|
|||
reg.NEXT_PC=reg.PC;
|
||||
reg.trap_state=0;
|
||||
reg.machine_state=0x0;
|
||||
reg.icount=0;
|
||||
}
|
||||
|
||||
uint8_t* rv32gc::get_regs_base_ptr(){
|
||||
|
|
|
@ -63,6 +63,7 @@ void rv64ia::reset(uint64_t address) {
|
|||
reg.NEXT_PC = reg.PC;
|
||||
reg.trap_state = 0;
|
||||
reg.machine_state = 0x3;
|
||||
reg.icount=0;
|
||||
}
|
||||
|
||||
uint8_t *rv64ia::get_regs_base_ptr() { return reinterpret_cast<uint8_t *>(®); }
|
||||
|
|
|
@ -1 +1 @@
|
|||
Subproject commit 019a04132a8beb7fcab24d504e3347ca0771ea5f
|
||||
Subproject commit 57853f5df2ee573c35ef598a8a259696ae6059c0
|
Loading…
Reference in New Issue