From a11abfd972f42aa963bcef3455f627bfe732738d Mon Sep 17 00:00:00 2001
From: Tomasz Michalak <tmichalak@antmicro.com>
Date: Wed, 6 Feb 2019 10:57:33 +0100
Subject: [PATCH] iob: Enhance fuzzer with bits for SLEW and DRIVE for LVCMOS25

Signed-off-by: Tomasz Michalak <tmichalak@antmicro.com>
---
 fuzzers/030-iob/bits.dbf     | 10 ++++++++++
 fuzzers/030-iob/generate.py  | 26 +++++++++++++++++++++-----
 fuzzers/030-iob/generate.tcl | 31 +++++++++++++++++++------------
 fuzzers/030-iob/top.py       |  5 +----
 4 files changed, 51 insertions(+), 21 deletions(-)

diff --git a/fuzzers/030-iob/bits.dbf b/fuzzers/030-iob/bits.dbf
index cb2dab5c..a2219bfd 100644
--- a/fuzzers/030-iob/bits.dbf
+++ b/fuzzers/030-iob/bits.dbf
@@ -1,2 +1,12 @@
 38_92 39_93 38_94,LIOB33.IOB_Y0.PULLTYPE.PULLDOWN
+38_118 38_126 39_117 39_119 39_125 39_127,LIOB33.IOB_Y0.LVCMOS25.DRIVE.12
+38_106 38_110 39_105 39_109,LIOB33.IOB_Y0.SLEW.FAST
 39_33 38_34 39_35,LIOB33.IOB_Y1.PULLTYPE.PULLDOWN
+38_00 38_02 38_08 38_10 39_01 39_09,LIOB33.IOB_Y1.LVCMOS25.DRIVE.12
+38_18 38_22 39_17 39_21,LIOB33.IOB_Y1.SLEW.FAST
+38_92 39_93 38_94,RIOB33.IOB_Y0.PULLTYPE.PULLDOWN
+38_118 38_126 39_117 39_119 39_125 39_127,RIOB33.IOB_Y0.LVCMOS25.DRIVE.12
+38_106 38_110 39_105 39_109,RIOB33.IOB_Y0.SLEW.FAST
+39_33 38_34 39_35,RIOB33.IOB_Y1.PULLTYPE.PULLDOWN
+38_00 38_02 38_08 38_10 39_01 39_09,RIOB33.IOB_Y1.LVCMOS25.DRIVE.12
+38_18 38_22 39_17 39_21,RIOB33.IOB_Y1.SLEW.FAST
diff --git a/fuzzers/030-iob/generate.py b/fuzzers/030-iob/generate.py
index a7055d1c..bfda6d32 100644
--- a/fuzzers/030-iob/generate.py
+++ b/fuzzers/030-iob/generate.py
@@ -7,7 +7,7 @@ segmk = Segmaker("design.bits")
 
 print("Loading tags")
 '''
-port,site,tile,pin,val
+port,site,tile,pin,slew,drive,pulltype
 di[0],IOB_X0Y107,LIOB33_X0Y107,A21,PULLDOWN
 di[10],IOB_X0Y147,LIOB33_X0Y147,F14,PULLUP
 '''
@@ -15,19 +15,35 @@ f = open('design.csv', 'r')
 f.readline()
 for l in f:
     l = l.strip()
-    port, site, tile, pin, val = l.split(',')
+    port, site, tile, pin, iostandard, slew, drive, pulltype = l.split(',')
     '''
+    LVCMOS25
+    SLEW    38_82   38_86   39_81   39_85
+    SLOW      X       X       X       X
+    FAST
+
+    DRIVE   38_64   38_66   38_72   38_74   39_65   39_73
+    4         X        X                              X
+    8                         X
+    12
+    16                                X       X       X
+
     PULLTYPE    28  29  30
     NONE                X
     KEEPER      X       X
     PULLDOWN
     PULLUP          X   X
     '''
-    if val == "":
-        val = "NONE"
+    if pulltype == "":
+        pulltype = "NONE"
     segmaker.add_site_group_zero(
         segmk, site, "PULLTYPE.", ("NONE", "KEEPER", "PULLDOWN", "PULLUP"),
-        "PULLDOWN", val)
+        "PULLDOWN", pulltype)
 
+    segmaker.add_site_group_zero(
+        segmk, site, iostandard + ".DRIVE.", ("4", "8", "12", "16"), "12",
+        drive)
+    segmaker.add_site_group_zero(
+        segmk, site, "SLEW.", ("SLOW", "FAST"), "FAST", slew)
 segmk.compile()
 segmk.write()
diff --git a/fuzzers/030-iob/generate.tcl b/fuzzers/030-iob/generate.tcl
index 171fec1a..262d98f0 100644
--- a/fuzzers/030-iob/generate.tcl
+++ b/fuzzers/030-iob/generate.tcl
@@ -32,7 +32,7 @@ proc loc_pins {} {
     set io_pin_sites [make_io_pin_sites]
 
     set fp [open "design.csv" w]
-    puts $fp "port,site,tile,pin,val"
+    puts $fp "port,site,tile,pin,iostandard,slew,drive,pulltype"
 
     puts "Looping"
     for {set idx 0} {$idx < [llength $pin_lines]} {incr idx} {
@@ -53,20 +53,27 @@ proc loc_pins {} {
         set tile [get_tiles -of_objects $site]
         set pin [dict get $io_pin_sites $site]
 
-        set_property -dict "PACKAGE_PIN $pin IOSTANDARD LVCMOS33" $port
+        set iostandard_val "LVCMOS25"
+        set_property -dict "PACKAGE_PIN $pin IOSTANDARD $iostandard_val" $port
 
-        # list_property isn't working (maybe due to empty?)
-        # set keys [list_property_value PULLTYPE $port]
-        # NONE placeholder for ""
-        set keys "NONE PULLUP PULLDOWN KEEPER"
-        set val [randsample_list 1 $keys]
-        if { $val == "NONE" } {
-            set val ""
+        set pulltype "NONE PULLUP PULLDOWN KEEPER"
+        set pulltype_val [randsample_list 1 $pulltype]
+        if { $pulltype_val == "NONE" } {
+            set pulltype_val ""
         }
+        set_property PULLTYPE $pulltype_val $port
 
-        set_property PULLTYPE $val $port
-        # puts "IOB $port $site $tile $pin $val"
-        puts $fp "$port,$site,$tile,$pin,$val"
+        if {$io == "input"} continue
+
+        set drive "4 8 12 16"
+        set drive_val [lindex $drive [expr {$idx % 4}]]
+        set_property DRIVE $drive_val $port
+
+        set slew "SLOW FAST"
+        set slew_val [lindex $slew [expr {($idx + ($idx / 4)) % 2}]]
+        set_property SLEW $slew_val $port
+
+        puts $fp "$port,$site,$tile,$pin,$iostandard_val,$slew_val,$drive_val,$pulltype_val"
     }
     close $fp
 }
diff --git a/fuzzers/030-iob/top.py b/fuzzers/030-iob/top.py
index 575193de..cf95c3e8 100644
--- a/fuzzers/030-iob/top.py
+++ b/fuzzers/030-iob/top.py
@@ -76,10 +76,7 @@ def run():
     assign_o(rand_site(), 'do[0]')
     # Now assign the rest randomly
     while len(remain_sites()):
-        if random.randint(0, 1):
-            assign_i(rand_site(), 'di[%u]' % DIN_N)
-        else:
-            assign_o(rand_site(), 'do[%u]' % DOUT_N)
+        assign_o(rand_site(), 'do[%u]' % DOUT_N)
 
     write_pins(ports)