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mistral: move M10K code to pack

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This commit is contained in:
Lofty 2021-12-21 21:34:28 +00:00
parent 33e031a284
commit 34b7cdb533
2 changed files with 77 additions and 71 deletions
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71
mistral/m10k.cc
View File

@ -66,75 +66,4 @@ void Arch::create_m10k(int x, int y)
}
}
static void assign_lab_pins(Context *ctx, CellInfo *cell)
{
auto abits = cell->attrs[id_CFG_ABITS].as_int64();
auto dbits = cell->attrs[id_CFG_DBITS].as_int64();
NPNR_ASSERT(abits >= 7 && abits <= 13);
NPNR_ASSERT(dbits == 1 || dbits == 2 || dbits == 5 || dbits == 10 || dbits == 20);
// Quartus doesn't seem to generate ADDRSTALL[AB], BYTEENABLE[AB][01].
// It *does* generate ACLR[01] but leaves them unconnected if unused.
// Enables.
// RDEN[0] and WREN[1] are left unconnected.
cell->pin_data[ctx->id("A1EN")].bel_pins = {ctx->id("RDEN[1]")};
cell->pin_data[ctx->id("B1EN")].bel_pins = {ctx->id("WREN[0]")};
// Clocks.
cell->pin_data[ctx->id("CLK1")].bel_pins = {ctx->id("CLKIN[0]")};
// Enables left unconnected.
// Address lines.
int addr_offset = std::max(12 - std::max(abits, int64_t{9}), 0l);
int bit_offset = 0;
if (abits == 13) {
cell->pin_data[ctx->id("A1ADDR[0]")].bel_pins = {ctx->id("DATAAIN[4]")};
cell->pin_data[ctx->id("B1ADDR[0]")].bel_pins = {ctx->id("DATABIN[19]")};
bit_offset = 1;
}
for (int bit = bit_offset; bit < abits; bit++) {
cell->pin_data[ctx->id(stringf("A1ADDR[%d]", bit))].bel_pins = {ctx->id(stringf("ADDRA[%d]", bit + addr_offset))};
cell->pin_data[ctx->id(stringf("B1ADDR[%d]", bit))].bel_pins = {ctx->id(stringf("ADDRB[%d]", bit + addr_offset))};
}
// Data lines
std::vector<int> offsets;
offsets.push_back(0);
if (abits >= 10 && dbits <= 10) {
offsets.push_back(10);
}
if (abits >= 11 && dbits <= 5) {
offsets.push_back(5);
offsets.push_back(15);
}
if (abits >= 12 && dbits <= 2) {
offsets.push_back(2);
offsets.push_back(7);
offsets.push_back(12);
offsets.push_back(17);
}
if (abits == 13 && dbits == 1) {
offsets.push_back(1);
offsets.push_back(3);
offsets.push_back(6);
offsets.push_back(8);
offsets.push_back(11);
offsets.push_back(13);
offsets.push_back(16);
offsets.push_back(18);
}
for (int bit = 0; bit < dbits; bit++) {
for (int offset : offsets) {
cell->pin_data[ctx->id(stringf("A1DATA[%d]", bit))].bel_pins.push_back(ctx->id(stringf("DATAAIN[%d]", bit + offset)));
}
}
for (int bit = 0; bit < dbits; bit++) {
cell->pin_data[ctx->id(stringf("B1DATA[%d]", bit))].bel_pins = {ctx->id(stringf("DATABOUT[%d]", bit))};
}
}
NEXTPNR_NAMESPACE_END

77
mistral/pack.cc
View File

@ -382,6 +382,83 @@ struct MistralPacker
}
}
void setup_m10ks()
{
for (auto& cell : ctx->cells) {
CellInfo *ci = cell.second.get();
if (ci->type != id_MISTRAL_M10K)
continue;
auto abits = ci->attrs[id_CFG_ABITS].as_int64();
auto dbits = ci->attrs[id_CFG_DBITS].as_int64();
NPNR_ASSERT(abits >= 7 && abits <= 13);
NPNR_ASSERT(dbits == 1 || dbits == 2 || dbits == 5 || dbits == 10 || dbits == 20);
// Quartus doesn't seem to generate ADDRSTALL[AB], BYTEENABLE[AB][01].
// It *does* generate ACLR[01] but leaves them unconnected if unused.
// Enables.
// RDEN[0] and WREN[1] are left unconnected.
ci->pin_data[ctx->id("A1EN")].bel_pins = {ctx->id("RDEN[1]")};
ci->pin_data[ctx->id("B1EN")].bel_pins = {ctx->id("WREN[0]")};
// Clocks.
ci->pin_data[ctx->id("CLK1")].bel_pins = {ctx->id("CLKIN[0]")};
// Enables left unconnected.
// Address lines.
int addr_offset = std::max(12 - std::max(abits, int64_t{9}), 0l);
int bit_offset = 0;
if (abits == 13) {
ci->pin_data[ctx->id("A1ADDR[0]")].bel_pins = {ctx->id("DATAAIN[4]")};
ci->pin_data[ctx->id("B1ADDR[0]")].bel_pins = {ctx->id("DATABIN[19]")};
bit_offset = 1;
}
for (int bit = bit_offset; bit < abits; bit++) {
ci->pin_data[ctx->id(stringf("A1ADDR[%d]", bit))].bel_pins = {ctx->id(stringf("ADDRA[%d]", bit + addr_offset))};
ci->pin_data[ctx->id(stringf("B1ADDR[%d]", bit))].bel_pins = {ctx->id(stringf("ADDRB[%d]", bit + addr_offset))};
}
// Data lines
std::vector<int> offsets;
offsets.push_back(0);
if (abits >= 10 && dbits <= 10) {
offsets.push_back(10);
}
if (abits >= 11 && dbits <= 5) {
offsets.push_back(5);
offsets.push_back(15);
}
if (abits >= 12 && dbits <= 2) {
offsets.push_back(2);
offsets.push_back(7);
offsets.push_back(12);
offsets.push_back(17);
}
if (abits == 13 && dbits == 1) {
offsets.push_back(1);
offsets.push_back(3);
offsets.push_back(6);
offsets.push_back(8);
offsets.push_back(11);
offsets.push_back(13);
offsets.push_back(16);
offsets.push_back(18);
}
for (int bit = 0; bit < dbits; bit++) {
for (int offset : offsets) {
ci->pin_data[ctx->id(stringf("A1DATA[%d]", bit))].bel_pins.push_back(ctx->id(stringf("DATAAIN[%d]", bit + offset)));
}
}
for (int bit = 0; bit < dbits; bit++) {
ci->pin_data[ctx->id(stringf("B1DATA[%d]", bit))].bel_pins = {ctx->id(stringf("DATABOUT[%d]", bit))};
}
}
}
void run()
{
init_constant_nets();