Add CLK_BUFG to tilegrid.

Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>

fuzzers/005-tilegrid/Makefile

@@ -14,6 +14,7 @@ TILEGRID_TDB_DEPENDENCIES += fifo_int/build/segbits_tilegrid.tdb
 TILEGRID_TDB_DEPENDENCIES += cfg_int/build/segbits_tilegrid.tdb
 TILEGRID_TDB_DEPENDENCIES += monitor_int/build/segbits_tilegrid.tdb
 TILEGRID_TDB_DEPENDENCIES += clk_hrow/build/segbits_tilegrid.tdb
+TILEGRID_TDB_DEPENDENCIES += clk_bufg/build/segbits_tilegrid.tdb
 GENERATE_FULL_ARGS=
 
 ifeq (${XRAY_DATABASE}, zynq7)
@@ -100,6 +101,9 @@ orphan_int_column/build/segbits_tilegrid.tdb: build/basicdb/tilegrid.json
 clk_hrow/build/segbits_tilegrid.tdb: build/basicdb/tilegrid.json
 	cd clk_hrow && $(MAKE)
 
+clk_bufg/build/segbits_tilegrid.tdb: build/basicdb/tilegrid.json
+	cd clk_bufg && $(MAKE)
+
 build/tilegrid_tdb.json: add_tdb.py $(TILEGRID_TDB_DEPENDENCIES)
 	python3 add_tdb.py \
 		--fn-in build/basicdb/tilegrid.json \
@@ -134,6 +138,7 @@ clean:
 	cd cfg_int && $(MAKE) clean
 	cd orphan_int_column && $(MAKE) clean
 	cd clk_hrow && $(MAKE) clean
+	cd clk_bufg && $(MAKE) clean
 
 .PHONY: database pushdb clean run
 

fuzzers/005-tilegrid/add_tdb.py

@@ -85,6 +85,7 @@ def run(fn_in, fn_out, verbose=False):
         ("clb/build/segbits_tilegrid.tdb", 36, 2),
         ("dsp/build/segbits_tilegrid.tdb", 28, 10),
         ("clk_hrow/build/segbits_tilegrid.tdb", 30, 7),
+        ("clk_bufg/build/segbits_tilegrid.tdb", 30, 8),
         ("clb_int/build/segbits_tilegrid.tdb", int_frames, int_words),
         ("iob_int/build/segbits_tilegrid.tdb", int_frames, int_words),
         ("bram_int/build/segbits_tilegrid.tdb", int_frames, int_words),

fuzzers/005-tilegrid/clk_bufg/Makefile

@@ -0,0 +1,4 @@
+N ?= 5
+GENERATE_ARGS?="--oneval 1 --design params.csv --dword 0 --dframe 1B"
+include ../fuzzaddr/common.mk
+

fuzzers/005-tilegrid/clk_bufg/generate.tcl

@@ -0,0 +1,21 @@
+source "$::env(XRAY_DIR)/utils/utils.tcl"
+
+proc run {} {
+    create_project -force -part $::env(XRAY_PART) design design
+    read_verilog top.v
+    synth_design -top top
+
+    #set_property -dict "PACKAGE_PIN $::env(XRAY_PIN_00) IOSTANDARD LVCMOS33" [get_ports clk]
+
+    set_property CFGBVS VCCO [current_design]
+    set_property CONFIG_VOLTAGE 3.3 [current_design]
+    set_property BITSTREAM.GENERAL.PERFRAMECRC YES [current_design]
+
+    place_design
+    route_design
+
+    write_checkpoint -force design.dcp
+    write_bitstream -force design.bit
+}
+
+run

fuzzers/005-tilegrid/clk_bufg/top.py

@@ -0,0 +1,62 @@
+import os
+import random
+random.seed(int(os.getenv("SEED"), 16))
+from prjxray import util
+from prjxray.db import Database
+
+
+def gen_sites():
+    db = Database(util.get_db_root())
+    grid = db.grid()
+    for tile_name in grid.tiles():
+        loc = grid.loc_of_tilename(tile_name)
+        gridinfo = grid.gridinfo_at_loc(loc)
+        sites = []
+        for site, site_type in gridinfo.sites.items():
+            if site_type == 'BUFGCTRL':
+                sites.append(site)
+
+        if sites:
+            yield tile_name, sorted(sites)
+
+
+def write_params(params):
+    pinstr = 'tile,val,site\n'
+    for tile, (site, val) in sorted(params.items()):
+        pinstr += '%s,%s,%s\n' % (tile, val, site)
+    open('params.csv', 'w').write(pinstr)
+
+
+def run():
+    print('''
+module top();
+    ''')
+
+    params = {}
+
+    sites = list(gen_sites())
+    for (tile_name, sites), isone in zip(sites,
+                                         util.gen_fuzz_states(len(sites))):
+        site_name = sites[0]
+        params[tile_name] = (site_name, isone)
+
+        print(
+            '''
+            (* KEEP, DONT_TOUCH, LOC = "{site}" *)
+            BUFGCTRL #(
+                .INIT_OUT({isone})
+                ) buf_{site} (
+                    .CE0(1),
+                    .S0(1)
+                );
+'''.format(
+                site=site_name,
+                isone=isone,
+            ))
+
+    print("endmodule")
+    write_params(params)
+
+
+if __name__ == '__main__':
+    run()