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gowin: add information about pin configurations

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Includes information on additional pin functions such as RPLL_C_IN, GCLKC_3, SCLK and others.
This allows a decision to be made about special network routing of such pins

Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
This commit is contained in:
YRabbit 2022-11-25 20:49:26 +10:00
parent c61d490bd4
commit ec53ae0c3b
2 changed files with 22 additions and 4 deletions
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15
gowin/arch.cc
View File

@ -666,6 +666,17 @@ const PairPOD *pairLookup(const PairPOD *list, const size_t len, const int dest)
return nullptr;
}
const PinPOD *pinLookup(const PinPOD *list, const size_t len, const int idx)
{
for (size_t i = 0; i < len; i++) {
const PinPOD *pin = &list[i];
if (pin->index_id == idx) {
return pin;
}
}
return nullptr;
}
bool aliasCompare(GlobalAliasPOD i, GlobalAliasPOD j)
{
return (i.dest_row < j.dest_row) || (i.dest_row == j.dest_row && i.dest_col < j.dest_col) ||
@ -947,9 +958,9 @@ void Arch::read_cst(std::istream &in)
case ioloc: { // IO_LOC name pin
IdString pinname = id(match[2]);
pinline = match[2];
const PairPOD *belname = pairLookup(package->pins.get(), package->num_pins, pinname.index);
const PinPOD *belname = pinLookup(package->pins.get(), package->num_pins, pinname.index);
if (belname != nullptr) {
std::string bel = IdString(belname->src_id).str(this);
std::string bel = IdString(belname->loc_id).str(this);
it->second->setAttr(IdString(ID_BEL), bel);
} else {
if (std::regex_match(pinline, match_pinloc, iobelre)) {

11
gowin/arch.h
View File

@ -140,10 +140,17 @@ NPNR_PACKED_STRUCT(struct PartnumberPOD {
uint32_t speed_id;
});
NPNR_PACKED_STRUCT(struct PinPOD {
uint16_t index_id;
uint16_t loc_id;
uint32_t num_cfgs;
RelPtr<uint32_t> cfgs;
});
NPNR_PACKED_STRUCT(struct PackagePOD {
uint32_t name_id;
uint32_t num_pins;
RelPtr<PairPOD> pins;
RelPtr<PinPOD> pins;
});
NPNR_PACKED_STRUCT(struct VariantPOD {
@ -475,7 +482,7 @@ struct Arch : BaseArch<ArchRanges>
void route_gowin_globals(Context *ctx);
// chip db version
unsigned int const chipdb_version = 1;
unsigned int const chipdb_version = 2;
std::vector<IdString> cell_types;