118 lines
4.4 KiB
Systemverilog
118 lines
4.4 KiB
Systemverilog
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/****************************************************************************
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+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+ +-+-+-+-+-+-+-+-+
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|F|u|n|c|t|i|o|n|a|l| |V|e|r|i|f|i|c|a|t|i|o|n| |o|f| |H|a|r|d|w|a|r|e|
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+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+ +-+-+-+-+-+-+-+-+
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FILE apb_config.sv
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DESCRIPTION contains main and default configurations
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****************************************************************************/
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`ifndef APB_CONFIG_SV
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`define APB_CONFIG_SV
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/**
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* Class: apb_config
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*/
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class apb_config extends uvm_object;
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// number of master and slave agents
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int unsigned num_of_slaves; // total number of slaves (DUT or agents)
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int unsigned num_of_slave_agents; // number of UVM slave agents
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bit has_master;
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// configurations for every agent
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apb_slave_config slave_cfg_queue[$];
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apb_master_config master_cfg;
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// control
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bit has_pslverr = 1; // APB peripherals are not required to support the PSLVERR pin
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bit has_checks = 1;
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bit has_coverage = 1;
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// UVM factory registration
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`uvm_object_utils_begin(apb_config)
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`uvm_field_int(num_of_slaves, UVM_DEFAULT)
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`uvm_field_int(num_of_slave_agents, UVM_DEFAULT)
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`uvm_field_int(has_master, UVM_DEFAULT)
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`uvm_field_queue_object(slave_cfg_queue, UVM_DEFAULT)
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`uvm_field_object(master_cfg, UVM_DEFAULT)
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`uvm_field_int(has_pslverr, UVM_DEFAULT)
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`uvm_field_int(has_checks, UVM_DEFAULT)
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`uvm_field_int(has_coverage, UVM_DEFAULT)
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`uvm_object_utils_end
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// new - constructor
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function new(string name = "apb_config");
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super.new(name);
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endfunction : new
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// additional class methods
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extern function void add_slave( bit [ADDR_WIDTH - 1 : 0] start_addr,
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bit [ADDR_WIDTH - 1 : 0] end_addr,
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int unsigned psel_indx,
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bit create_agent = 1,
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uvm_active_passive_enum is_active = UVM_ACTIVE);
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extern function void add_master(uvm_active_passive_enum is_active = UVM_ACTIVE);
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extern function int unsigned get_slave_psel_by_addr(bit [ADDR_WIDTH - 1 : 0] addr);
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endclass : apb_config
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// creates and configures a slave agent config and adds to a queue
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function void apb_config::add_slave(bit [ADDR_WIDTH - 1 : 0] start_addr,
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bit [ADDR_WIDTH - 1 : 0] end_addr,
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int unsigned psel_indx,
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bit create_agent = 1,
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uvm_active_passive_enum is_active = UVM_ACTIVE);
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apb_slave_config tmp_cfg;
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++num_of_slaves;
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if(create_agent == 1) ++num_of_slave_agents;
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tmp_cfg = apb_slave_config::type_id::create("slave_cfg");
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tmp_cfg.start_address = start_addr;
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tmp_cfg.end_address = end_addr;
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tmp_cfg.psel_index = psel_indx;
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tmp_cfg.create_agent = create_agent;
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tmp_cfg.is_active = is_active;
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tmp_cfg.has_checks = has_checks;
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tmp_cfg.has_coverage = has_coverage;
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slave_cfg_queue.push_back(tmp_cfg);
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endfunction : add_slave
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// creates and configures a master agent configuration
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function void apb_config::add_master(uvm_active_passive_enum is_active = UVM_ACTIVE);
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has_master = 1;
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master_cfg = apb_master_config::type_id::create("master_cfg");
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master_cfg.is_active = is_active;
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master_cfg.has_checks = has_checks;
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master_cfg.has_coverage = has_coverage;
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endfunction : add_master
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// returns the slave psel index
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function int unsigned apb_config::get_slave_psel_by_addr(bit [ADDR_WIDTH - 1 : 0] addr);
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for (int i = 0; i < slave_cfg_queue.size(); i++)
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if(slave_cfg_queue[i].check_address_range(addr)) begin
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return slave_cfg_queue[i].psel_index;
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end
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return 0;
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endfunction : get_slave_psel_by_addr
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/**
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* Class: default_apb_config
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*
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* Description: default configuration - one master, no slaves
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*/
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class default_apb_config extends apb_config;
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`uvm_object_utils(default_apb_config)
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function new(string name = "default_apb_config");
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super.new(name);
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add_master(UVM_ACTIVE);
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add_slave(0, 2**ADDR_WIDTH - 1, 1, 1, UVM_ACTIVE); // TODO : remove after debug
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endfunction : new
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endclass : default_apb_config
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`endif
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