diff options
Diffstat (limited to 'ice40/arch.cc')
| -rw-r--r-- | ice40/arch.cc | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/ice40/arch.cc b/ice40/arch.cc index 0b168383..fcc9d798 100644 --- a/ice40/arch.cc +++ b/ice40/arch.cc @@ -637,17 +637,34 @@ std::vector<GroupId> Arch::getGroupGroups(GroupId group) const // ----------------------------------------------------------------------- -delay_t Arch::getBudgetOverride(const NetInfo *net_info, const PortRef &sink, delay_t budget) const +bool Arch::getBudgetOverride(const NetInfo *net_info, const PortRef &sink, delay_t &budget) const { const auto &driver = net_info->driver; - if (driver.port == id_cout) { + if (driver.port == id_cout && sink.port == id_cin) { auto driver_loc = getBelLocation(driver.cell->bel); auto sink_loc = getBelLocation(sink.cell->bel); if (driver_loc.y == sink_loc.y) - return 0; - return 250; + budget = 0; + else switch (args.type) { +#ifndef ICE40_HX1K_ONLY + case ArchArgs::HX8K: +#endif + case ArchArgs::HX1K: + budget = 190; break; +#ifndef ICE40_HX1K_ONLY + case ArchArgs::LP384: + case ArchArgs::LP1K: + case ArchArgs::LP8K: + budget = 290; break; + case ArchArgs::UP5K: + budget = 560; break; +#endif + default: + log_error("Unsupported iCE40 chip type.\n"); + } + return true; } - return budget; + return false; } // ----------------------------------------------------------------------- |