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ecp5: Add DQS groupings to database

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Signed-off-by: David Shah <dave@ds0.me>
This commit is contained in:
David Shah 2019-02-11 11:21:19 +00:00 committed by David Shah
parent 92a4a48f47
commit 5cfc7674c1
2 changed files with 15 additions and 4 deletions
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2
ecp5/arch.h
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@ -103,7 +103,7 @@ NPNR_PACKED_STRUCT(struct PIOInfoPOD {
int32_t bel_index;
RelPtr<char> function_name;
int16_t bank;
int16_t padding;
int16_t dqsgroup;
});
NPNR_PACKED_STRUCT(struct PackagePinPOD {

17
ecp5/trellis_import.py
View File

@ -119,9 +119,20 @@ def process_pio_db(ddrg, device):
pinfunc = metaitem["function"]
else:
pinfunc = None
dqs = -1
if "dqs" in metaitem:
tdqs = metaitem["dqs"]
if tdqs[0] == "L":
dqs = 0
elif tdqs[0] == "R":
dqs = 2048
suffix_size = 0
while tdqs[-(suffix_size+1)].isdigit():
suffix_size += 1
dqs |= int(tdqs[-suffix_size:])
bel_idx = get_bel_index(ddrg, loc, pio)
if bel_idx is not None:
pindata.append((loc, bel_idx, bank, pinfunc))
pindata.append((loc, bel_idx, bank, pinfunc, dqs))
global_data = {}
quadrants = ["UL", "UR", "LL", "LR"]
@ -360,7 +371,7 @@ def write_database(dev_name, chip, ddrg, endianness):
bba.l("pio_info", "PIOInfoPOD")
for pin in pindata:
loc, bel_idx, bank, func = pin
loc, bel_idx, bank, func, dqs = pin
write_loc(loc, "abs_loc")
bba.u32(bel_idx, "bel_index")
if func is not None:
@ -368,7 +379,7 @@ def write_database(dev_name, chip, ddrg, endianness):
else:
bba.r(None, "function_name")
bba.u16(bank, "bank")
bba.u16(0, "padding")
bba.u16(dqs, "dqsgroup")
bba.l("tiletype_names", "RelPtr<char>")
for tt, idx in sorted(tiletype_names.items(), key=lambda x: x[1]):