From e699a990850de8420d726d30b2edb17467d6e4cd Mon Sep 17 00:00:00 2001 From: laraibkhan-lm <73219142+laraibkhan-lm@users.noreply.github.com> Date: Fri, 13 Nov 2020 15:56:19 +0500 Subject: [PATCH] Delete rvjtag_tap.scala --- src/main/scala/dmi/rvjtag_tap.scala | 122 ---------------------------- 1 file changed, 122 deletions(-) delete mode 100644 src/main/scala/dmi/rvjtag_tap.scala diff --git a/src/main/scala/dmi/rvjtag_tap.scala b/src/main/scala/dmi/rvjtag_tap.scala deleted file mode 100644 index 12b9d7dc..00000000 --- a/src/main/scala/dmi/rvjtag_tap.scala +++ /dev/null @@ -1,122 +0,0 @@ -package dmi -import chisel3._ -import chisel3.util._ -import include._ -import lib._ - -class rvjtag_tap extends Module with el2_lib with RequireAsyncReset { - val io = IO(new Bundle{ - val trst = Input(AsyncReset()) - val tck = Input(Clock()) - val tms = Input(Bool()) - val tdi = Input(Bool()) - val dmi_reset = Output(Bool()) - val dmi_hard_reset = Output(Bool()) - val rd_status = Input(UInt(2.W)) - val dmi_stat = Input(UInt(2.W)) - val idle = Input(UInt(3.W)) - val version = Input(UInt(4.W)) - val jtag_id = Input(UInt(31.W)) - val rd_data = Input(UInt(32.W)) - - val tdo = Output(Bool()) - val tdoEnable = Output(Bool()) - val wr_en = Output(Bool()) - val rd_en = Output(Bool()) - val wr_data = Output(UInt(32.W)) - val wr_addr = Output(UInt(AWIDTH.W)) - }) - val AWIDTH = 7 - val USER_DR_LENGTH = AWIDTH + 34 - val nsr = WireInit(0.U(USER_DR_LENGTH.W)) - val sr = withClockAndReset (io.tck,io.trst) {RegNext(nsr,0.U)} - val dr = WireInit(0.U(USER_DR_LENGTH.W)) - /////////////////////////////////////////////////////// - // Tap controller - /////////////////////////////////////////////////////// - val test_logic_reset_state :: run_test_idle_state :: select_dr_scan_state :: capture_dr_state :: shift_dr_state :: exit1_dr_state :: pause_dr_state :: exit2_dr_state :: update_dr_state :: select_ir_scan_state :: capture_ir_state :: shift_ir_state :: exit1_ir_state :: pause_ir_state :: exit2_ir_state :: update_ir_state :: Nil = Enum(16) - val nstate = WireInit(test_logic_reset_state) - val state = withClockAndReset(io.tck,io.trst) {RegNext(nstate,test_logic_reset_state)} - val ir = WireInit(0.U(5.W)) - val jtag_reset = WireInit(Bool(),false.B) - val shift_dr = WireInit(UInt(1.W),init = 0.U) - val pause_dr = WireInit(UInt(1.W),init = 0.U) - val update_dr = WireInit(Bool(),false.B) - val capture_dr = WireInit(UInt(1.W),init = 0.U) - val shift_ir = WireInit(UInt(1.W),init = 0.U) - val pause_ir = WireInit(UInt(1.W),init = 0.U) - val update_ir = WireInit(Bool(),false.B) - val capture_ir = WireInit(UInt(1.W),init = 0.U) - val dr_en = WireInit(UInt(2.W),init = 0.U) - val devid_sel = WireInit(Bool(),false.B) - val abits = AWIDTH.U(6.W) - - switch (state) { - is(test_logic_reset_state) {nstate := Mux(io.tms, test_logic_reset_state, run_test_idle_state) - jtag_reset := 1.U } - is(run_test_idle_state) {nstate := Mux(io.tms,select_dr_scan_state,run_test_idle_state) } - is(select_dr_scan_state) {nstate := Mux(io.tms,select_ir_scan_state,capture_dr_state) } - is(capture_dr_state) {nstate := Mux(io.tms,exit1_dr_state,shift_dr_state) - capture_dr := 1.U } - is(shift_dr_state) {nstate := Mux(io.tms,exit1_dr_state,shift_dr_state) - shift_dr := 1.U } - is(exit1_dr_state) {nstate := Mux(io.tms,update_dr_state,pause_dr_state) } - is(pause_dr_state) {nstate := Mux(io.tms,exit2_dr_state,pause_dr_state) - pause_dr := 1.U } - is(exit2_dr_state) {nstate := Mux(io.tms,update_dr_state,shift_dr_state) } - is(update_dr_state) {nstate := Mux(io.tms,select_dr_scan_state,run_test_idle_state) - update_dr := 1.U } - is(select_ir_scan_state) {nstate := Mux(io.tms,test_logic_reset_state,capture_ir_state) } - is(capture_ir_state) {nstate := Mux(io.tms,exit1_ir_state,shift_ir_state) - capture_ir := 1.U } - is(shift_ir_state) {nstate := Mux(io.tms,exit1_ir_state,shift_ir_state) - shift_ir := 1.U } - is(exit1_ir_state) {nstate := Mux(io.tms,update_ir_state,pause_ir_state) } - is(pause_ir_state) {nstate := Mux(io.tms,exit2_ir_state,pause_ir_state) - pause_ir := 1.U } - is(exit2_ir_state) {nstate := Mux(io.tms,update_ir_state,shift_ir_state) } - is(update_ir_state) {nstate := Mux(io.tms,select_dr_scan_state,run_test_idle_state) - update_ir := 1.U } - } - io.tdoEnable := shift_dr | shift_ir - /////////////////////////////////////////////////////// - // IR register - ////////////////////////////////////////////////////// - ir := withClockAndReset(io.tck,io.trst) {RegNext(Mux(jtag_reset,1.U,Mux(update_ir,Mux((sr(4,0)===0.U).asBool,"h1f".U,sr(4,0)),0.U)),1.U)} - devid_sel := ir==="b00001".U(5.W) - dr_en := Cat(ir===17.U,ir===16.U) - /////////////////////////////////////////////////////// - // Shift register - /////////////////////////////////////////////////////// - - when(shift_dr===1.U){ - when(dr_en(1)===true.B){nsr :=Cat(io.tdi, sr(USER_DR_LENGTH-1,1))} - .elsewhen(dr_en(0)===1.U || devid_sel===true.B){nsr := Cat(Fill(USER_DR_LENGTH-32,0.U) , io.tdi, sr(31,1))} - .otherwise{nsr := Cat(Fill(USER_DR_LENGTH-1,0.U),io.tdi)} // bypass - } - .elsewhen(capture_dr ===1.U){ - when(dr_en(0)){nsr := Cat(Fill(USER_DR_LENGTH-15,0.U) ,io.idle, io.dmi_stat,abits,io.version)} - .elsewhen(dr_en(1)){nsr := Cat(Fill(AWIDTH,0.U),io.rd_data,io.rd_status)} - .elsewhen(devid_sel){nsr := Cat(Fill(USER_DR_LENGTH-32,0.U),io.jtag_id,1.U)} - } - .elsewhen(shift_ir===1.U){nsr := Cat(Fill(USER_DR_LENGTH-5,0.U),io.tdi,sr(4,1))} - .elsewhen(capture_ir===1.U){nsr := Cat(Fill(USER_DR_LENGTH-1,0.U),1.U)} - - // TDO retiming - withClock(io.tck) {io.tdo:=RegNext(sr(0),0.U)} - // DMI CS register - withClockAndReset (io.tck,io.trst) {io.dmi_hard_reset := RegNext(Mux(update_dr & dr_en(0).asBool(),sr(17),0.U),0.U)} - withClockAndReset (io.tck,io.trst) {io.dmi_reset := RegNext(Mux(update_dr & dr_en(0).asBool(),sr(16),0.U),0.U)} - // DR register - withClockAndReset (io.tck,io.trst) {dr := RegNext(Mux(update_dr & dr_en(1).asBool(),sr,Cat(dr(USER_DR_LENGTH-1,2),0.U(2.W))),0.U)} - - io.rd_en := dr(0) - io.wr_en := dr(1) - io.wr_data := dr(33,2) - io.wr_addr := dr(40,34) - -} -object tapmain extends App{ - println("Generate Verilog") - println((new chisel3.stage.ChiselStage).emitVerilog(new rvjtag_tap())) -}