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nexus: Add DQS routing to BBA 

Signed-off-by: gatecat <gatecat@ds0.me>
This commit is contained in:
gatecat 2026-07-18 11:45:24 +02:00
parent 7c667eeba3
commit 1831ce9510
2 changed files with 10 additions and 1 deletions
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9
nexus/arch.h
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@ -108,6 +108,7 @@ enum RelLocType : uint8_t
REL_LOC_SPINE = 5,
REL_LOC_HROW = 6,
REL_LOC_VCC = 7,
REL_LOC_DQS = 8,
};
enum ArcFlags
@ -240,6 +241,7 @@ NPNR_PACKED_STRUCT(struct ChipInfoPOD {
RelPtr<GlobalInfoPOD> globals;
RelSlice<PadInfoPOD> pads;
RelSlice<PackageInfoPOD> packages;
RelSlice<int16_t> col_dqs_group;
});
NPNR_PACKED_STRUCT(struct IdStringDBPOD {
@ -434,6 +436,13 @@ inline bool chip_rel_loc_tile(const ChipInfoPOD *chip, int32_t base, const RelWi
case REL_LOC_VCC:
next = 0;
return true;
case REL_LOC_DQS: {
int16_t dqs_group = chip->col_dqs_group[curr_x];
if (dqs_group == -1)
return false;
next = chip_tile_from_xy(chip, dqs_group, curr_y);
return true;
}
default:
return false;
}

2
nexus/bba_version.inc
View File

@ -1 +1 @@
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