ecp5: Use new timing data

Signed-off-by: David Shah <dave@ds0.me>

4 files changed, 82 insertions, 94 deletions

diff --git a/ecp5/arch.cc b/ecp5/arch.cc
index 7a4aadf1..db78b5e5 100644
--- a/ecp5/arch.cc
+++ b/ecp5/arch.cc
@@ -96,7 +96,7 @@ Arch::Arch(ArchArgs args) : args(args)
             break;
         }
     }
-    speed_grade = &(chip_info->speed_grades[args.speedGrade]);
+    speed_grade = &(chip_info->speed_grades[args.speed]);
     if (!package_info)
         log_error("Unsupported package '%s' for '%s'.\n", args.package.c_str(), getChipName().c_str());
 
@@ -482,94 +482,74 @@ DecalXY Arch::getGroupDecal(GroupId pip) const { return {}; };
 
 // -----------------------------------------------------------------------
 
-bool Arch::getCellDelay(const CellInfo *cell, IdString fromPort, IdString toPort, DelayInfo &delay) const
+bool Arch::getDelayFromTimingDatabase(IdString tctype, IdString from, IdString to, DelayInfo &delay) const
 {
-    // Data for -8 grade
-    if (cell->type == id_TRELLIS_SLICE) {
-        bool has_carry = str_or_default(cell->params, id("MODE"), "LOGIC") == "CCU2";
-        if (fromPort == id_A0 || fromPort == id_B0 || fromPort == id_C0 || fromPort == id_D0) {
-            if (toPort == id_F0) {
-                delay.delay = 180;
-                return true;
-            } else if (has_carry && toPort == id_F1) {
-                delay.delay = 500;
-                return true;
-            } else if (has_carry && toPort == id_FCO) {
-                delay.delay = 355;
-                return true;
-            } else if (toPort == id_OFX0) {
-                delay.delay = 306;
-                return true;
+    for (int i = 0; i < speed_grade->num_cell_timings; i++) {
+        const auto &tc = speed_grade->cell_timings[i];
+        if (tc.cell_type == tctype.index) {
+            for (int j = 0; j < tc.num_prop_delays; j++) {
+                const auto &dly = tc.prop_delays[j];
+                if (dly.from_port == from.index && dly.to_port == to.index) {
+                    delay.max_delay = dly.max_delay;
+                    delay.min_delay = dly.min_delay;
+                    return true;
+                }
             }
+            return false;
         }
+    }
+    NPNR_ASSERT_FALSE("failed to find timing cell in db");
+}
 
-        if (fromPort == id_A1 || fromPort == id_B1 || fromPort == id_C1 || fromPort == id_D1) {
-            if (toPort == id_F1) {
-                delay.delay = 180;
-                return true;
-            } else if (has_carry && toPort == id_FCO) {
-                delay.delay = 355;
-                return true;
-            } else if (toPort == id_OFX0) {
-                delay.delay = 306;
-                return true;
+void Arch::getSetupHoldFromTimingDatabase(IdString tctype, IdString clock, IdString port, DelayInfo &setup,
+                                          DelayInfo &hold) const
+{
+    for (int i = 0; i < speed_grade->num_cell_timings; i++) {
+        const auto &tc = speed_grade->cell_timings[i];
+        if (tc.cell_type == tctype.index) {
+            for (int j = 0; j < tc.num_setup_holds; j++) {
+                const auto &sh = tc.setup_holds[j];
+                if (sh.clock_port == clock.index && sh.sig_port == port.index) {
+                    setup.max_delay = sh.max_setup;
+                    setup.min_delay = sh.min_setup;
+                    hold.max_delay = sh.max_hold;
+                    hold.min_delay = sh.min_hold;
+                    return;
+                }
             }
         }
+    }
+    NPNR_ASSERT_FALSE("failed to find timing cell in db");
+}
 
-        if (has_carry && fromPort == id_FCI) {
-            if (toPort == id_F0) {
-                delay.delay = 328;
-                return true;
-            } else if (toPort == id_F1) {
-                delay.delay = 349;
-                return true;
-            } else if (toPort == id_FCO) {
-                delay.delay = 56;
-                return true;
-            }
-        }
+bool Arch::getCellDelay(const CellInfo *cell, IdString fromPort, IdString toPort, DelayInfo &delay) const
+{
 
-        if (fromPort == id_CLK && (toPort == id_Q0 || toPort == id_Q1)) {
-            delay.delay = 395;
-            return true;
+    // Data for -8 grade
+    if (cell->type == id_TRELLIS_SLICE) {
+        bool has_carry = str_or_default(cell->params, id("MODE"), "LOGIC") == "CCU2";
+        if (fromPort == id_A0 || fromPort == id_B0 || fromPort == id_C0 || fromPort == id_D0 || fromPort == id_A1 ||
+            fromPort == id_B1 || fromPort == id_C1 || fromPort == id_D1 || fromPort == id_M0 || fromPort == id_FCI) {
+            return getDelayFromTimingDatabase(has_carry ? id_SCCU2C : id_SLOGICB, fromPort, toPort, delay);
         }
 
-        if (fromPort == id_M0 && toPort == id_OFX0) {
-            delay.delay = 193;
-            return true;
-        }
-#if 0 // FIXME
-            if (fromPort == id_WCK && (toPort == id_F0 || toPort == id_F1)) {
-                delay.delay = 717;
-                return true;
-            }
-#endif
         if ((fromPort == id_A0 && toPort == id_WADO3) || (fromPort == id_A1 && toPort == id_WDO1) ||
             (fromPort == id_B0 && toPort == id_WADO1) || (fromPort == id_B1 && toPort == id_WDO3) ||
             (fromPort == id_C0 && toPort == id_WADO2) || (fromPort == id_C1 && toPort == id_WDO0) ||
             (fromPort == id_D0 && toPort == id_WADO0) || (fromPort == id_D1 && toPort == id_WDO2)) {
-            delay.delay = 0;
+            delay.min_delay = 0;
+            delay.max_delay = 0;
             return true;
         }
         return false;
     } else if (cell->type == id_DCCA) {
         if (fromPort == id_CLKI && toPort == id_CLKO) {
-            delay.delay = 0;
+            delay.min_delay = 0;
+            delay.max_delay = 0;
             return true;
         }
         return false;
     } else if (cell->type == id_DP16KD) {
-        if (fromPort == id_CLKA) {
-            if (toPort.str(this).substr(0, 3) == "DOA") {
-                delay.delay = 4260;
-                return true;
-            }
-        } else if (fromPort == id_CLKB) {
-            if (toPort.str(this).substr(0, 3) == "DOB") {
-                delay.delay = 4280;
-                return true;
-            }
-        }
         return false;
     } else {
         return false;
@@ -669,9 +649,9 @@ TimingPortClass Arch::getPortTimingClass(const CellInfo *cell, IdString port, in
 TimingClockingInfo Arch::getPortClockingInfo(const CellInfo *cell, IdString port, int index) const
 {
     TimingClockingInfo info;
-    info.setup.delay = 0;
-    info.hold.delay = 0;
-    info.clockToQ.delay = 0;
+    info.setup = getDelayFromNS(0);
+    info.hold = getDelayFromNS(0);
+    info.clockToQ = getDelayFromNS(0);
     if (cell->type == id_TRELLIS_SLICE) {
         int sd0 = int_or_default(cell->params, id("REG0_SD"), 0), sd1 = int_or_default(cell->params, id("REG1_SD"), 0);
 
@@ -679,18 +659,18 @@ TimingClockingInfo Arch::getPortClockingInfo(const CellInfo *cell, IdString port
             port == id_WAD3 || port == id_WRE) {
             info.edge = RISING_EDGE;
             info.clock_port = id_WCK;
-            info.setup.delay = 100;
-            info.hold.delay = 0;
+            getSetupHoldFromTimingDatabase(id_SDPRAME, id_WCK, port, info.setup, info.hold);
         } else if (port == id_DI0 || port == id_DI1 || port == id_CE || port == id_LSR || (sd0 == 1 && port == id_M0) ||
                    (sd1 == 1 && port == id_M1)) {
             info.edge = cell->sliceInfo.clkmux == id("INV") ? FALLING_EDGE : RISING_EDGE;
             info.clock_port = id_CLK;
-            info.setup.delay = 100;
-            info.hold.delay = 0;
+            getSetupHoldFromTimingDatabase(id_SLOGICB, id_CLK, port, info.setup, info.hold);
+
         } else {
             info.edge = cell->sliceInfo.clkmux == id("INV") ? FALLING_EDGE : RISING_EDGE;
             info.clock_port = id_CLK;
-            info.clockToQ.delay = 395;
+            bool is_path = getDelayFromTimingDatabase(id_SLOGICB, id_CLK, port, info.clockToQ);
+            NPNR_ASSERT(is_path);
         }
     } else if (cell->type == id_DP16KD) {
         std::string port_name = port.str(this);
@@ -711,10 +691,12 @@ TimingClockingInfo Arch::getPortClockingInfo(const CellInfo *cell, IdString port
                             ? FALLING_EDGE
                             : RISING_EDGE;
         if (cell->ports.at(port).type == PORT_OUT) {
-            info.clockToQ.delay = 4280;
+            bool is_path = getDelayFromTimingDatabase(id_DP16KD_REGMODE_A_NOREG_REGMODE_B_NOREG, info.clock_port, port,
+                                                      info.clockToQ);
+            NPNR_ASSERT(is_path);
         } else {
-            info.setup.delay = 100;
-            info.hold.delay = 0;
+            getSetupHoldFromTimingDatabase(id_DP16KD_REGMODE_A_NOREG_REGMODE_B_NOREG, info.clock_port, port, info.setup,
+                                           info.hold);
         }
     } else if (cell->type == id_DCUA) {
         std::string prefix = port.str(this).substr(0, 9);
diff --git a/ecp5/arch.h b/ecp5/arch.h
index 9fb33c9b..938ca354 100644
--- a/ecp5/arch.h
+++ b/ecp5/arch.h
@@ -158,23 +158,21 @@ NPNR_PACKED_STRUCT(struct CellPropDelayPOD {
     int32_t max_delay;
 });
 
-
 NPNR_PACKED_STRUCT(struct CellSetupHoldPOD {
-   int32_t sig_port;
-   int32_t clock_port;
-   int32_t min_setup;
-   int32_t max_setup;
-   int32_t min_hold;
-   int32_t max_hold;
+    int32_t sig_port;
+    int32_t clock_port;
+    int32_t min_setup;
+    int32_t max_setup;
+    int32_t min_hold;
+    int32_t max_hold;
 });
 
-
 NPNR_PACKED_STRUCT(struct CellTimingPOD {
-   int32_t cell_type;
-   int32_t num_prop_delays;
-   int32_t num_setup_holds;
-   RelPtr<CellPropDelayPOD> prop_delays;
-   RelPtr<CellSetupHoldPOD> setup_holds;
+    int32_t cell_type;
+    int32_t num_prop_delays;
+    int32_t num_setup_holds;
+    RelPtr<CellPropDelayPOD> prop_delays;
+    RelPtr<CellSetupHoldPOD> setup_holds;
 });
 
 NPNR_PACKED_STRUCT(struct PipDelayPOD {
@@ -443,11 +441,11 @@ struct ArchArgs
     std::string package;
     enum SpeedGrade
     {
-        SPEED_6,
+        SPEED_6 = 0,
         SPEED_7,
         SPEED_8,
         SPEED_8_5G,
-    } speedGrade = SPEED_6;
+    } speed = SPEED_6;
 };
 
 struct Arch : BaseCtx
@@ -946,6 +944,10 @@ struct Arch : BaseCtx
     // Return true if a port is a net
     bool isGlobalNet(const NetInfo *net) const;
 
+    bool getDelayFromTimingDatabase(IdString tctype, IdString from, IdString to, DelayInfo &delay) const;
+    void getSetupHoldFromTimingDatabase(IdString tctype, IdString clock, IdString port, DelayInfo &setup,
+                                        DelayInfo &hold) const;
+
     // -------------------------------------------------
     // Placement validity checks
     bool isValidBelForCell(CellInfo *cell, BelId bel) const;
diff --git a/ecp5/main.cc b/ecp5/main.cc
index cc004df3..0b187942 100644
--- a/ecp5/main.cc
+++ b/ecp5/main.cc
@@ -111,7 +111,11 @@ std::unique_ptr<Context> ECP5CommandHandler::createContext()
         chipArgs.package = vm["package"].as<std::string>();
     else
         chipArgs.package = "CABGA381";
-    chipArgs.speed = 6;
+    if (chipArgs.type == ArchArgs::LFE5UM5G_25F || chipArgs.type == ArchArgs::LFE5UM5G_45F ||
+        chipArgs.type == ArchArgs::LFE5UM5G_85F)
+        chipArgs.speed = ArchArgs::SPEED_8_5G;
+    else
+        chipArgs.speed = ArchArgs::SPEED_6;
 
     return std::unique_ptr<Context>(new Context(chipArgs));
 }
diff --git a/ecp5/project.cc b/ecp5/project.cc
index bca21643..43318b1c 100644
--- a/ecp5/project.cc
+++ b/ecp5/project.cc
@@ -45,7 +45,7 @@ std::unique_ptr<Context> ProjectHandler::createContext(pt::ptree &root)
         chipArgs.type = ArchArgs::LFE5U_85F;
     }
     chipArgs.package = root.get<std::string>("project.arch.package");
-    chipArgs.speed = root.get<int>("project.arch.speed");
+    chipArgs.speed = ArchArgs::SpeedGrade(root.get<int>("project.arch.speed"));
 
     return std::unique_ptr<Context>(new Context(chipArgs));
 }