modules/wrsw_watchdog: adding simulation driver

bb42f8e1 · Grzegorz Daniluk · af1ec690 · bb42f8e1 · bb42f8e1 · bb42f8e1
Commit bb42f8e1 authored Jun 30, 2015 by Grzegorz Daniluk
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wdog_regs.vh sim/regs/wdog_regs.vh +22 -0

simdrv_wdog.svh sim/simdrv_wdog.svh +108 -0

scb_top_sim.vhd top/bare_top/scb_top_sim.vhd +2 -1

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--- a/sim/regs/wdog_regs.vh
+++ b/sim/regs/wdog_regs.vh
+`define ADDR_WDOG_RST_CNT              4'h0
+`define ADDR_WDOG_CR                   4'h4
+`define WDOG_CR_PORT_OFFSET 0
+`define WDOG_CR_PORT 32'h000000ff
+`define WDOG_CR_RST_OFFSET 31
+`define WDOG_CR_RST 32'h80000000
+`define ADDR_WDOG_ACT                  4'h8
+`define ADDR_WDOG_FSM                  4'hc
+`define WDOG_FSM_IB_ALLOC_OFFSET 0
+`define WDOG_FSM_IB_ALLOC 32'h0000000f
+`define WDOG_FSM_IB_TRANS_OFFSET 4
+`define WDOG_FSM_IB_TRANS 32'h000000f0
+`define WDOG_FSM_IB_RCV_OFFSET 8
+`define WDOG_FSM_IB_RCV 32'h00000f00
+`define WDOG_FSM_IB_LL_OFFSET 12
+`define WDOG_FSM_IB_LL 32'h0000f000
+`define WDOG_FSM_OB_PREP_OFFSET 16
+`define WDOG_FSM_OB_PREP 32'h000f0000
+`define WDOG_FSM_OB_SEND_OFFSET 20
+`define WDOG_FSM_OB_SEND 32'h00f00000
+`define WDOG_FSM_FREE_OFFSET 24
+`define WDOG_FSM_FREE 32'h0f000000
--- a/sim/simdrv_wdog.svh
+++ b/sim/simdrv_wdog.svh
+`ifndef __SIMDRV_WR_WDOG_SVH
+`define __SIMDRV_WR_WDOG_SVH 1
+
+`include "simdrv_defs.svh"
+`include "regs/wdog_regs.vh"
+
+class CSimDrv_WDOG;
+
+  protected CBusAccessor m_acc;
+  protected uint32_t m_base;
+
+  const string alloc_FSM[0:5] = '{"S_IDLE",
+                            "S_PCKSTART_SET_USECNT",
+                            "S_PCKSTART_PAGE_REQ",
+                            "S_PCKINTER_PAGE_REQ",
+                            "S_PCKSTART_SET_AND_REQ",
+                            "Unknown"};
+
+  const string trans_FSM[0:10] = '{"S_IDLE",
+                            "S_READY",
+                            "S_WAIT_RTU_VALID",
+                            "S_WAIT_SOF",
+                            "S_SET_USECNT",
+                            "S_WAIT_WITH_TRANSFER",
+                            "S_TOO_LONG_TRANSFER",
+                            "S_TRANSFER",
+                            "S_TRANSFERRED",
+                            "S_DROP",
+                            "Unknown"};
+
+  const string rcv_FSM[0:7] = '{"S_IDLE",
+                            "S_READY",
+                            "S_PAUSE",
+                            "S_RCV_DATA",
+                            "S_DROP",
+                            "S_WAIT_FORCE_FREE",
+                            "S_INPUT_STUCK",
+                            "Unknown"};
+
+  const string ll_FSM[0:6] = '{"S_IDLE",
+                            "S_READY_FOR_PGR_AND_DLAST",
+                            "S_READY_FOR_DLAST_ONLY",
+                            "S_WRITE",
+                            "S_EOF_ON_WR",
+                            "S_SOF_ON_WR",
+                            "Unknown"};
+
+  const string prep_FSM[0:7] = '{"S_RETRY_READY",
+                            "S_NEWPCK_PAGE_READY",
+                            "S_NEWPCK_PAGE_SET_IN_ADV",
+                            "S_NEWPCK_PAGE_USED",
+                            "S_RETRY_PREPARE",
+                            "S_IDLE",
+                            "Unknown",
+                            "Frozen"};
+
+  const string send_FSM[0:7] = '{"S_IDLE",
+                            "S_DATA",
+                            "S_FLUSH_STALL",
+                            "S_FINISH_CYCLE",
+                            "S_EOF",
+                            "S_RETRY",
+                            "S_WAIT_FREE_PCK",
+                            "Unknown"};
+
+  const string free_FSM[0:7] = '{"S_IDLE",
+                            "S_REQ_READ_FIFO",
+                            "S_READ_FIFO",
+                            "S_READ_NEXT_PAGE_ADDR",
+                            "S_FREE_CURRENT_PAGE_ADDR",
+                            "S_FORCE_FREE_CURRENT_PAGE_ADDR",
+                            "S_",
+                            "Unknown"};
+
+  function new(CBusAccessor acc, uint64_t base);
+    m_acc   = acc;
+    m_base  = base;
+  endfunction;
+
+  task print_fsms(int port);
+    uint64_t fsms;
+    uint64_t act;
+    int act_tab[0:6];
+
+    m_acc.write(m_base + `ADDR_WDOG_CR, (port << `WDOG_CR_PORT_OFFSET));
+    m_acc.read(m_base + `ADDR_WDOG_FSM, fsms, 4);
+    m_acc.read(m_base + `ADDR_WDOG_ACT, act, 4);
+    for(int i=0; i<=6; i++) begin
+      act_tab[i] = (act & (1<<i)) >> i;
+    end
+
+    $display("Alloc ", act_tab[0], ": ",alloc_FSM[(fsms & `WDOG_FSM_IB_ALLOC)>>`WDOG_FSM_IB_ALLOC_OFFSET]);
+    $display("Trans ", act_tab[1], ": ",trans_FSM[(fsms & `WDOG_FSM_IB_TRANS)>>`WDOG_FSM_IB_TRANS_OFFSET]);
+    $display("Rcv   ", act_tab[2], ": ",rcv_FSM[(fsms & `WDOG_FSM_IB_RCV)>>`WDOG_FSM_IB_RCV_OFFSET]);
+    $display("LL    ", act_tab[3], ": ",ll_FSM[(fsms & `WDOG_FSM_IB_LL)>>`WDOG_FSM_IB_LL_OFFSET]);
+    $display("Prep  ", act_tab[4], ": ",prep_FSM[(fsms & `WDOG_FSM_OB_PREP)>>`WDOG_FSM_OB_PREP_OFFSET]);
+    $display("Send  ", act_tab[5], ": ",send_FSM[(fsms & `WDOG_FSM_OB_SEND)>>`WDOG_FSM_OB_SEND_OFFSET]);
+    $display("Free  ", act_tab[6], ": ",free_FSM[(fsms & `WDOG_FSM_FREE)>>`WDOG_FSM_FREE_OFFSET]);
+
+  endtask;
+
+  task force_reset();
+    m_acc.write(m_base + `ADDR_WDOG_CR, `WDOG_CR_RST);
+  endtask;
+
+endclass
+
+`endif
--- a/top/bare_top/scb_top_sim.vhd
+++ b/top/bare_top/scb_top_sim.vhd
@@ -180,7 +180,8 @@ begin  -- rtl
      g_without_network => false,
      g_with_TRU        => g_with_TRU,
      g_with_TATSU      => g_with_TATSU,
-      g_with_HWIU       => g_with_HWIU),
+      g_with_HWIU       => g_with_HWIU,
+      g_with_watchdog   => true)
    port map (
      sys_rst_n_i         => sys_rst_n_i,
      clk_startup_i       => clk_startup_i,