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-rw-r--r--fpga_interchange/dedicated_interconnect.cc8
1 files changed, 8 insertions, 0 deletions
diff --git a/fpga_interchange/dedicated_interconnect.cc b/fpga_interchange/dedicated_interconnect.cc
index 5f89e15b..56b6b706 100644
--- a/fpga_interchange/dedicated_interconnect.cc
+++ b/fpga_interchange/dedicated_interconnect.cc
@@ -425,6 +425,10 @@ bool DedicatedInterconnect::isBelLocationValid(BelId bel, const CellInfo *cell)
continue;
}
+ if (ctx->io_port_types.count(net->driver.cell->type)) {
+ continue;
+ }
+
// Only check sink BELs.
if (net->driver.cell == cell && net->driver.port == port_name) {
if (!is_driver_on_net_valid(bel, cell, port_name, net)) {
@@ -454,6 +458,10 @@ void DedicatedInterconnect::explain_bel_status(BelId bel, const CellInfo *cell)
// This net doesn't have a driver, probably not valid?
NPNR_ASSERT(net->driver.cell != nullptr);
+ if (ctx->io_port_types.count(net->driver.cell->type)) {
+ continue;
+ }
+
// Only check sink BELs.
if (net->driver.cell == cell && net->driver.port == port_name) {
if (!is_driver_on_net_valid(bel, cell, port_name, net)) {