From b45db64102b5dafc81c5b3e5b8a19060a3d9c64a Mon Sep 17 00:00:00 2001
From: John McMaster <JohnDMcMaster@gmail.com>
Date: Sat, 22 Dec 2018 11:17:14 -0800
Subject: [PATCH] hclkpips: HCLK bitstream workaround

Signed-off-by: John McMaster <JohnDMcMaster@gmail.com>
---
 fuzzers/058-hclkpips/generate.py  |  6 ++++++
 fuzzers/058-hclkpips/generate.tcl | 15 ++++++++++++---
 2 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/fuzzers/058-hclkpips/generate.py b/fuzzers/058-hclkpips/generate.py
index f32fb121..03356b7a 100644
--- a/fuzzers/058-hclkpips/generate.py
+++ b/fuzzers/058-hclkpips/generate.py
@@ -35,6 +35,12 @@ for arg in sys.argv[1:]:
             _, pip = pip.split("/")
             tile_type, pip = pip.split(".")
             src, dst = pip.split("->>")
+
+            # FIXME: workaround for https://github.com/SymbiFlow/prjxray/issues/392
+            if "CLB_IO_CLK" not in segmk.grid[tile]["bits"]:
+                print("WARNING: dropping tile %s" % tile)
+                continue
+
             tag = "%s.%s" % (dst, src)
             segmk.add_tile_tag(tile, tag, 1)
             if "HCLK_CK_BUFH" in src:
diff --git a/fuzzers/058-hclkpips/generate.tcl b/fuzzers/058-hclkpips/generate.tcl
index 40a07d95..c03b20f1 100644
--- a/fuzzers/058-hclkpips/generate.tcl
+++ b/fuzzers/058-hclkpips/generate.tcl
@@ -21,10 +21,19 @@ route_design
 
 write_checkpoint -force design.dcp
 
-if [regexp "_001$" [pwd]] {set tile [lindex [filter [roi_tiles] {TILE_TYPE == HCLK_L}] 0]}
-if [regexp "_002$" [pwd]] {set tile [lindex [filter [roi_tiles] {TILE_TYPE == HCLK_R}] 0]}
-
 set net [get_nets o_OBUF]
+
+if [regexp "_001$" [pwd]] {
+    set hclk_tiles [filter [roi_tiles] {TYPE == HCLK_L}]
+} elseif [regexp "_002$" [pwd]] {
+    set hclk_tiles [filter [roi_tiles] {TYPE == HCLK_R}]
+} else {
+    error "unknown specimen"
+}
+
+# set tile [randsample_list 1 $hclk_tiles]
+set tile [lindex $hclk_tiles end]
+puts "Selected tile $tile"
 set pips [get_pips -of_objects $tile]
 
 for {set i 0} {$i < [llength $pips]} {incr i} {