diff --git a/target/sim/src/vip_cheshire_soc.sv b/target/sim/src/vip_cheshire_soc.sv index e12a0201..e9af360a 100644 --- a/target/sim/src/vip_cheshire_soc.sv +++ b/target/sim/src/vip_cheshire_soc.sv @@ -274,6 +274,38 @@ module vip_cheshire_soc import cheshire_pkg::*; #( jtag_elf_preload(binary, entry); endtask + task automatic jtag_write_reg32(input logic [31:0] start_addr, logic [63:0] value); + logic [31:0] rdata; + + automatic dm::sbcs_t sbcs = dm::sbcs_t'{sbreadonaddr: 1'b1, sbaccess: 2, default: '0}; + + $display("[JTAG] Start writing at %x ", start_addr); + jtag_write(dm::SBCS, sbcs, 0, 1); + + // Write address + $display("[JTAG] Start writing address"); + jtag_write(dm::SBAddress1, 'h0); + jtag_write(dm::SBAddress0, start_addr); + + // Write data + $display("[JTAG] Start writing data"); + jtag_write(dm::SBData0, value[31:0]); + + endtask + + task automatic jtag_read_reg32( + input logic [31:0] addr, + output logic [31:0] data, + input int unsigned idle_cycles + ); + automatic dm::sbcs_t sbcs = dm::sbcs_t'{sbreadonaddr: 1'b1, sbaccess: 2, default: '0}; + jtag_write(dm::SBCS, sbcs, 0, 1); + jtag_write(dm::SBAddress1, 'h0); + jtag_write(dm::SBAddress0, addr[31:0]); + jtag_dbg.wait_idle(idle_cycles); + jtag_dbg.read_dmi_exp_backoff(dm::SBData0, data); + endtask + task automatic jtag_write_reg(input logic [31:0] start_addr, input doub_bt value); logic [63:0] rdata;