cores/hyperram: Remove nextpnr place script

This is a relic from a previous core version that was erroneously added

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>

cores/hyperram/sw/serdes-nextpnr-place.py

@@ -1,114 +0,0 @@
-#!/usr/bin/env python
-
-from collections import namedtuple
-import re
-
-BEL = namedtuple('BEL', 'x y z')
-
-def to_int(s):
-	return int(re.sub(r'[^\d-]+', '', s))
-
-def split_bel(b):
-	return BEL(*[to_int(x) for x in b.split('/', 3)])
-
-def find_io_site(lc):
-	# Check in/out ports
-	for pn in [ 'I0', 'I1', 'I2', 'I3', 'O' ]:
-		n = lc.ports[pn].net
-		if (n is None) or n.name.startswith('$PACKER_'):
-			continue
-		pl = [ n.driver ] + list(n.users)
-		for p in pl:
-			if (p.cell.type == 'SB_IO') and ('BEL' in p.cell.attrs):
-				return split_bel(p.cell.attrs['BEL'])
-	return None
-
-
-# Find all groups and all LCs
-serdes_lcs = {}
-serdes_site = {}
-
-for n,c in ctx.cells:
-	if 'SERDES_GRP' in c.attrs:
-		# Get group ID
-		grp = int(c.attrs['SERDES_GRP'],2)
-
-		# Append to LCs list and IO site list
-		serdes_lcs.setdefault(grp, []).append(c)
-
-		io_site = find_io_site(c)
-		if io_site is not None:
-			if (grp in serdes_site) and (serdes_site[grp] != io_site):
-				raise RuntimeError('IO site conflict for SERDES group %d (%s vs %s)' % (grp, io_site, serdes_site[grp]))
-			serdes_site[grp] = io_site
-
-# Split into top / bottmon IO banks
-serdes_top = {}
-serdes_bot = {}
-
-for grp, site in serdes_site.items():
-	if site.y == 31:
-		serdes_top[grp] = site
-	else:
-		serdes_bot[grp] = site
-
-# Place them
-# (super dumb algo ...)
-def place(sites):
-	# Init set
-	toplace = sorted(sites.items(), key=lambda x:-x[1].x)
-	placed  = {}
-
-	# Scan each possible site in order and place ASAP
-	for x in range(1,26):
-		# Skip invalid (SPRAM columns)
-		if x in [6, 19]:
-			continue
-
-		# Place next one ?
-		if x >= (toplace[-1][1].x - 1):
-			placed[toplace.pop()[0]] = x
-
-		# Done ?
-		if not toplace:
-			break
-
-	# Cleanup pass
-	while True:
-		# Find a group that could be moved to its preferred X
-		used = set(placed.values())
-		for grp, pos in placed.items():
-			px = sites[grp].x
-			if (pos != px) and (px not in used) and (px not in [6, 19]):
-				placed[grp] = sites[grp].x
-				break
-		else:
-			break
-
-	# Done
-	return placed
-
-serdes_top_place = place(serdes_top)
-serdes_bot_place = place(serdes_bot)
-
-# Merge results
-serdes_place = dict()
-serdes_place.update(serdes_top_place)
-serdes_place.update(serdes_bot_place)
-
-# Add the final BEL attribute to all LCs
-for grp in serdes_place.keys():
-	x = serdes_place[grp]
-	for lc in serdes_lcs[grp]:
-		# Grab attributes
-		yofs = int(lc.attrs['SERDES_YOFS'], 2)
-		y = (30-yofs) if serdes_site[grp].y == 31 else (1+yofs)
-		z = int(lc.attrs['SERDES_Z'], 2)
-
-		# Set attribute
-		lc.setAttr('BEL', 'X%d/Y%d/lc%d' % (x, y, z))
-
-		# Clear out
-		lc.unsetAttr('SERDES_GRP')
-		lc.unsetAttr('SERDES_YOFS')
-		lc.unsetAttr('SERDES_Z')