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-rw-r--r--gowin/arch.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/gowin/arch.h b/gowin/arch.h
index c5804bc4..14181d79 100644
--- a/gowin/arch.h
+++ b/gowin/arch.h
@@ -472,6 +472,8 @@ struct Arch : BaseArch<ArchRanges>
// XXX GW1N-9C DDR quirk
bool ddr_has_extra_inputs = false;
+ // XXX GW1NR-9 iobuf quirk
+ bool gw1n9_quirk = false;
// Permissible combinations of modes in a single slice
std::map<const IdString, IdString> dff_comp_mode;