c13b34f20e
The following primitives are implemented for the GW1N-1, GW2A-18,
GW2AR-18C, GW1NSR-4C, GW1NR-9C, GW1NR-9 and GW1N-4 chips:
* pROM - read only memory - (bitwidth: 1, 2, 4, 8, 16, 32).
* pROMX9 - read only memory - (bitwidth: 9, 18, 36).
* SDPB - semidual port - (bitwidth: 1, 2, 4, 8, 16, 32).
* SDPX9B - semidual port - (bitwidth: 9, 18, 36).
* DPB - dual port - (bitwidth: 16).
* DPX9B - dual port - (bitwidth: 18).
* SP - single port - (bitwidth: 1, 2, 4, 8, 16, 32).
* SPX9 - single port - (bitwidth: 9, 18, 36).
For GW1NSR-4C and GW1NR-9 chips, SP/SPX9 primitives with data widths
of 32/36 bits are implemented using a pair of 16-bit wide
primitives.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
769 lines
29 KiB
Python
769 lines
29 KiB
Python
from os import path
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import sys
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import importlib.resources
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import pickle
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import gzip
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import re
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import argparse
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sys.path.append(path.join(path.dirname(__file__), "../.."))
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from himbaechel_dbgen.chip import *
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from apycula import chipdb
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# Bel flags
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BEL_FLAG_SIMPLE_IO = 0x100
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# Chip flags
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CHIP_HAS_SP32 = 0x1
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# Z of the bels
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# sync with C++ part!
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LUT0_Z = 0 # z(DFFx) = z(LUTx) + 1
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LUT7_Z = 14
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MUX20_Z = 16
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MUX21_Z = 18
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MUX23_Z = 22
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MUX27_Z = 29
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ALU0_Z = 30 # : 35, 6 ALUs
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RAMW_Z = 36 # RAM16SDP4
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IOBA_Z = 50
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IOBB_Z = 51
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IOLOGICA_Z = 70
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IDES16_Z = 72
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OSER16_Z = 73
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BUFG_Z = 74 # : 81 reserve just in case
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BSRAM_Z = 100
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OSC_Z = 274
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PLL_Z = 275
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GSR_Z = 276
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VCC_Z = 277
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GND_Z = 278
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# =======================================
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# Chipdb additional info
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# =======================================
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@dataclass
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class TileExtraData(BBAStruct):
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tile_class: IdString # The general functionality of the slightly different tiles,
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# let's say the behavior of LUT+DFF in the tiles are completely identical,
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# but one of them also contains clock-wire switches,
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# then we assign them to the same LOGIC class.
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io16_x_off: int = 0 # OSER16/IDES16 offsets to the aux cell
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io16_y_off: int = 0
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def serialise_lists(self, context: str, bba: BBAWriter):
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pass
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def serialise(self, context: str, bba: BBAWriter):
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bba.u32(self.tile_class.index)
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bba.u16(self.io16_x_off)
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bba.u16(self.io16_y_off)
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@dataclass
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class BottomIOCnd(BBAStruct):
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wire_a_net: IdString
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wire_b_net: IdString
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def serialise_lists(self, context: str, bba: BBAWriter):
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pass
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def serialise(self, context: str, bba: BBAWriter):
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bba.u32(self.wire_a_net.index)
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bba.u32(self.wire_b_net.index)
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@dataclass
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class BottomIO(BBAStruct):
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conditions: list[BottomIOCnd] = field(default_factory = list)
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def serialise_lists(self, context: str, bba: BBAWriter):
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bba.label(f"{context}_conditions")
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for i, cnd in enumerate(self.conditions):
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cnd.serialise(f"{context}_cnd{i}", bba)
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def serialise(self, context: str, bba: BBAWriter):
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bba.slice(f"{context}_conditions", len(self.conditions))
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@dataclass
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class ChipExtraData(BBAStruct):
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strs: StringPool
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flags: int
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bottom_io: BottomIO
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diff_io_types: list[IdString] = field(default_factory = list)
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def create_bottom_io(self):
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self.bottom_io = BottomIO()
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def add_bottom_io_cnd(self, net_a: str, net_b: str):
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self.bottom_io.conditions.append(BottomIOCnd(self.strs.id(net_a), self.strs.id(net_b)))
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def add_diff_io_type(self, diff_type: str):
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self.diff_io_types.append(self.strs.id(diff_type))
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def serialise_lists(self, context: str, bba: BBAWriter):
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self.bottom_io.serialise_lists(f"{context}_bottom_io", bba)
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bba.label(f"{context}_diff_io_types")
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for i, diff_io_type in enumerate(self.diff_io_types):
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bba.u32(diff_io_type.index)
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def serialise(self, context: str, bba: BBAWriter):
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bba.u32(self.flags)
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self.bottom_io.serialise(f"{context}_bottom_io", bba)
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bba.slice(f"{context}_diff_io_types", len(self.diff_io_types))
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# Unique features of the tiletype
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class TypeDesc:
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def __init__(self, dups, tiletype = '', extra_func = None, sfx = 0):
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self.tiletype = tiletype
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self.extra_func = extra_func
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self.dups = dups
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self.sfx = sfx
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created_tiletypes = {}
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# u-turn at the rim
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uturnlut = {'N': 'S', 'S': 'N', 'E': 'W', 'W': 'E'}
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def uturn(db: chipdb, x: int, y: int, wire: str):
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m = re.match(r"([NESW])([128]\d)(\d)", wire)
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if m:
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direction, num, segment = m.groups()
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# wires wrap around the edges
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# assumes 0-based indexes
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if y < 0:
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y = -1 - y
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direction = uturnlut[direction]
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if x < 0:
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x = -1 - x
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direction = uturnlut[direction]
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if y > db.rows - 1:
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y = 2 * db.rows - 1 - y
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direction = uturnlut[direction]
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if x > db.cols - 1:
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x = 2 * db.cols - 1 - x
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direction = uturnlut[direction]
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wire = f'{direction}{num}{segment}'
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return (x, y, wire)
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def create_nodes(chip: Chip, db: chipdb):
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# : (x, y)
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dirs = { 'N': (0, -1), 'S': (0, 1), 'W': (-1, 0), 'E': (1, 0) }
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X = db.cols
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Y = db.rows
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global_nodes = {}
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for y in range(Y):
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for x in range(X):
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nodes = []
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tt = chip.tile_type_at(x, y)
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extra_tile_data = tt.extra_data
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# SN and EW
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for i in [1, 2]:
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nodes.append([NodeWire(x, y, f'SN{i}0'),
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NodeWire(*uturn(db, x, y - 1, f'N1{i}1')),
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NodeWire(*uturn(db, x, y + 1, f'S1{i}1'))])
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nodes.append([NodeWire(x, y, f'EW{i}0'),
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NodeWire(*uturn(db, x - 1, y, f'W1{i}1')),
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NodeWire(*uturn(db, x + 1, y, f'E1{i}1'))])
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for d, offs in dirs.items():
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# 1-hop
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for i in [0, 3]:
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nodes.append([NodeWire(x, y, f'{d}1{i}0'),
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NodeWire(*uturn(db, x + offs[0], y + offs[1], f'{d}1{i}1'))])
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# 2-hop
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for i in range(8):
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nodes.append([NodeWire(x, y, f'{d}2{i}0'),
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NodeWire(*uturn(db, x + offs[0], y + offs[1], f'{d}2{i}1')),
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NodeWire(*uturn(db, x + offs[0] * 2, y + offs[1] * 2, f'{d}2{i}2'))])
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# 4-hop
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for i in range(4):
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nodes.append([NodeWire(x, y, f'{d}8{i}0'),
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NodeWire(*uturn(db, x + offs[0] * 4, y + offs[1] * 4, f'{d}8{i}4')),
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NodeWire(*uturn(db, x + offs[0] * 8, y + offs[1] * 8, f'{d}8{i}8'))])
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# I0 for MUX2_LUT8
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if (x < X - 1 and extra_tile_data.tile_class == chip.strs.id('LOGIC')
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and chip.tile_type_at(x + 1, y).extra_data.tile_class == chip.strs.id('LOGIC')):
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nodes.append([NodeWire(x, y, 'OF30'),
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NodeWire(x + 1, y, 'OF3')])
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# ALU
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if extra_tile_data.tile_class == chip.strs.id('LOGIC'):
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# local carry chain
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for i in range(5):
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nodes.append([NodeWire(x, y, f'COUT{i}'),
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NodeWire(x, y, f'CIN{i + 1}')]);
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# gobal carry chain
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if x > 1 and chip.tile_type_at(x - 1, y).extra_data.tile_class == chip.strs.id('LOGIC'):
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nodes.append([NodeWire(x, y, f'CIN0'),
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NodeWire(x - 1, y, f'COUT5')])
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for node in nodes:
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chip.add_node(node)
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# VCC and VSS sources in the all tiles
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global_nodes.setdefault('GND', []).append(NodeWire(x, y, 'VSS'))
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global_nodes.setdefault('VCC', []).append(NodeWire(x, y, 'VCC'))
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# add nodes from the apicula db
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for node_name, node_hdr in db.nodes.items():
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wire_type, node = node_hdr
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if len(node) < 2:
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continue
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for y, x, wire in node:
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if wire_type:
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if not chip.tile_type_at(x, y).has_wire(wire):
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chip.tile_type_at(x, y).create_wire(wire, wire_type)
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else:
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chip.tile_type_at(x, y).set_wire_type(wire, wire_type)
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new_node = NodeWire(x, y, wire)
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gl_nodes = global_nodes.setdefault(node_name, [])
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if new_node not in gl_nodes:
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gl_nodes.append(NodeWire(x, y, wire))
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for name, node in global_nodes.items():
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chip.add_node(node)
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def create_switch_matrix(tt: TileType, db: chipdb, x: int, y: int):
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def get_wire_type(name):
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if name in {'XD0', 'XD1', 'XD2', 'XD3', 'XD4', 'XD5',}:
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return "X0"
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return ""
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for dst, srcs in db.grid[y][x].pips.items():
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if not tt.has_wire(dst):
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tt.create_wire(dst, get_wire_type(dst))
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for src in srcs.keys():
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if not tt.has_wire(src):
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tt.create_wire(src, get_wire_type(src))
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tt.create_pip(src, dst)
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# clock wires
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for dst, srcs in db.grid[y][x].pure_clock_pips.items():
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if not tt.has_wire(dst):
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tt.create_wire(dst, "GLOBAL_CLK")
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for src in srcs.keys():
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if not tt.has_wire(src):
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tt.create_wire(src, "GLOBAL_CLK")
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tt.create_pip(src, dst)
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def create_hclk_switch_matrix(tt: TileType, db: chipdb, x: int, y: int):
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if (y, x) not in db.hclk_pips:
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return
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# hclk wires
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for dst, srcs in db.hclk_pips[y, x].items():
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if not tt.has_wire(dst):
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tt.create_wire(dst, "HCLK")
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for src in srcs.keys():
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if not tt.has_wire(src):
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tt.create_wire(src, "HCLK")
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tt.create_pip(src, dst)
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def create_extra_funcs(tt: TileType, db: chipdb, x: int, y: int):
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if (y, x) not in db.extra_func:
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return
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for func, desc in db.extra_func[(y, x)].items():
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if func == 'osc':
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osc_type = desc['type']
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portmap = db.grid[y][x].bels[osc_type].portmap
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for port, wire in portmap.items():
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tt.create_wire(wire, port)
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bel = tt.create_bel(osc_type, osc_type, z = OSC_Z)
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for port, wire in portmap.items():
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if 'OUT' in port:
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tt.add_bel_pin(bel, port, wire, PinType.OUTPUT)
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else:
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tt.add_bel_pin(bel, port, wire, PinType.INPUT)
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elif func == 'gsr':
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wire = desc['wire']
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tt.create_wire(wire, "GSRI")
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bel = tt.create_bel("GSR", "GSR", z = GSR_Z)
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tt.add_bel_pin(bel, "GSRI", wire, PinType.INPUT)
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if func == 'io16':
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role = desc['role']
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if role == 'MAIN':
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y_off, x_off = desc['pair']
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tt.extra_data.io16_x_off = x_off
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tt.extra_data.io16_y_off = y_off
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for io_type, z in {('IDES16', IDES16_Z), ('OSER16', OSER16_Z)}:
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bel = tt.create_bel(io_type, io_type, z = z)
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portmap = db.grid[y][x].bels[io_type].portmap
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for port, wire in portmap.items():
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if port == 'FCLK': # XXX compatibility
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wire = 'FCLKA'
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if not tt.has_wire(wire):
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if port in {'CLK', 'PCLK'}:
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tt.create_wire(wire, "TILE_CLK")
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else:
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tt.create_wire(wire, "IOL_PORT")
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if 'OUT' in port:
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tt.add_bel_pin(bel, port, wire, PinType.OUTPUT)
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else:
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tt.add_bel_pin(bel, port, wire, PinType.INPUT)
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if func == 'buf':
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for buf_type, wires in desc.items():
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for i, wire in enumerate(wires):
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if not tt.has_wire(wire):
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tt.create_wire(wire, "TILE_CLK")
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wire_out = f'{buf_type}{i}_O'
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tt.create_wire(wire_out, "TILE_CLK")
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# XXX make Z from buf_type
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bel = tt.create_bel(f'{buf_type}{i}', buf_type, z = BUFG_Z + i)
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bel.flags = BEL_FLAG_GLOBAL
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tt.add_bel_pin(bel, "I", wire, PinType.INPUT)
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tt.add_bel_pin(bel, "O", wire_out, PinType.OUTPUT)
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def create_tiletype(create_func, chip: Chip, db: chipdb, x: int, y: int, ttyp: int):
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has_extra_func = (y, x) in db.extra_func
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# (found, TypeDesc)
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def find_or_make_dup():
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for d in created_tiletypes[ttyp].dups:
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if has_extra_func and d.extra_func == db.extra_func[(y, x)]:
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return (True, d)
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elif not has_extra_func and not d.extra_func:
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return (True, d)
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sfx = len(created_tiletypes[ttyp].dups) + 1
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if has_extra_func:
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tdesc = TypeDesc(extra_func = db.extra_func[(y, x)], sfx = sfx, dups = [])
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else:
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tdesc = TypeDesc(sfx = sfx, dups = [])
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created_tiletypes[ttyp].dups.append(tdesc)
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return (False, tdesc)
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old_type = False
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if ttyp not in created_tiletypes:
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# new type
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if has_extra_func:
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tdesc = TypeDesc(extra_func = db.extra_func[(y, x)], dups = [])
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else:
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tdesc = TypeDesc(dups = [])
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created_tiletypes.update({ttyp: tdesc})
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else:
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# find similar
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if has_extra_func:
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if created_tiletypes[ttyp].extra_func == db.extra_func[(y, x)]:
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tdesc = created_tiletypes[ttyp]
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old_type = True
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else:
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old_type, tdesc = find_or_make_dup()
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elif not created_tiletypes[ttyp].extra_func:
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tdesc = created_tiletypes[ttyp]
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old_type = True
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else:
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old_type, tdesc = find_or_make_dup()
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if old_type:
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chip.set_tile_type(x, y, tdesc.tiletype)
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return
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tt = create_func(chip, db, x, y, ttyp, tdesc)
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create_extra_funcs(tt, db, x, y)
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create_hclk_switch_matrix(tt, db, x, y)
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create_switch_matrix(tt, db, x, y)
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chip.set_tile_type(x, y, tdesc.tiletype)
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def create_null_tiletype(chip: Chip, db: chipdb, x: int, y: int, ttyp: int, tdesc: TypeDesc):
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typename = "NULL"
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tiletype = f"{typename}_{ttyp}"
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if tdesc.sfx != 0:
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tiletype += f"_{tdesc.sfx}"
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tt = chip.create_tile_type(tiletype)
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tt.extra_data = TileExtraData(chip.strs.id(typename))
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tdesc.tiletype = tiletype
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return tt
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# responsible nodes, there will be IO banks, configuration, etc.
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def create_corner_tiletype(chip: Chip, db: chipdb, x: int, y: int, ttyp: int, tdesc: TypeDesc):
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typename = "CORNER"
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tiletype = f"{typename}_{ttyp}"
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if tdesc.sfx != 0:
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tiletype += f"_{tdesc.sfx}"
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tt = chip.create_tile_type(tiletype)
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tt.extra_data = TileExtraData(chip.strs.id(typename))
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if x == 0 and y == 0:
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# GND is the logic low level generator
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tt.create_wire('VSS', 'GND')
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gnd = tt.create_bel('GND', 'GND', z = GND_Z)
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tt.add_bel_pin(gnd, "G", "VSS", PinType.OUTPUT)
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# VCC is the logic high level generator
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tt.create_wire('VCC', 'VCC')
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gnd = tt.create_bel('VCC', 'VCC', z = VCC_Z)
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tt.add_bel_pin(gnd, "V", "VCC", PinType.OUTPUT)
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tdesc.tiletype = tiletype
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return tt
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# IO
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def create_io_tiletype(chip: Chip, db: chipdb, x: int, y: int, ttyp: int, tdesc: TypeDesc):
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typename = "IO"
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tiletype = f"{typename}_{ttyp}"
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if tdesc.sfx != 0:
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tiletype += f"_{tdesc.sfx}"
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tt = chip.create_tile_type(tiletype)
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tt.extra_data = TileExtraData(chip.strs.id(typename))
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simple_io = y in db.simplio_rows and chip.name in {'GW1N-1', 'GW1NZ-1', 'GW1N-4'}
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if simple_io:
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rng = 10
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else:
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rng = 2
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for i in range(rng):
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name = 'IOB' + 'ABCDEFGHIJ'[i]
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# XXX some IOBs excluded from generic chipdb for some reason
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if name not in db.grid[y][x].bels:
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continue
|
|
# wires
|
|
portmap = db.grid[y][x].bels[name].portmap
|
|
tt.create_wire(portmap['I'], "IO_I")
|
|
tt.create_wire(portmap['O'], "IO_O")
|
|
tt.create_wire(portmap['OE'], "IO_OE")
|
|
# bels
|
|
io = tt.create_bel(name, "IOB", z = IOBA_Z + i)
|
|
if simple_io and chip.name in {'GW1N-1'}:
|
|
io.flags |= BEL_FLAG_SIMPLE_IO
|
|
tt.add_bel_pin(io, "I", portmap['I'], PinType.INPUT)
|
|
tt.add_bel_pin(io, "OEN", portmap['OE'], PinType.INPUT)
|
|
tt.add_bel_pin(io, "O", portmap['O'], PinType.OUTPUT)
|
|
# bottom io
|
|
if 'BOTTOM_IO_PORT_A' in portmap:
|
|
if not tt.has_wire(portmap['BOTTOM_IO_PORT_A']):
|
|
tt.create_wire(portmap['BOTTOM_IO_PORT_A'], "IO_I")
|
|
tt.create_wire(portmap['BOTTOM_IO_PORT_B'], "IO_I")
|
|
tt.add_bel_pin(io, "BOTTOM_IO_PORT_A", portmap['BOTTOM_IO_PORT_A'], PinType.INPUT)
|
|
tt.add_bel_pin(io, "BOTTOM_IO_PORT_B", portmap['BOTTOM_IO_PORT_B'], PinType.INPUT)
|
|
# create IOLOGIC bels if any
|
|
for idx, name in {(IOLOGICA_Z, 'IOLOGICA'), (IOLOGICA_Z + 1, 'IOLOGICB')}:
|
|
if name not in db.grid[y][x].bels:
|
|
continue
|
|
iol = tt.create_bel(name, "IOLOGIC", z = idx)
|
|
for port, wire in db.grid[y][x].bels[name].portmap.items():
|
|
if port == 'FCLK': # XXX compatibility
|
|
wire = f'FCLK{name[-1]}'
|
|
if not tt.has_wire(wire):
|
|
if port in {'CLK', 'PCLK'}:
|
|
tt.create_wire(wire, "TILE_CLK")
|
|
else:
|
|
tt.create_wire(wire, "IOL_PORT")
|
|
if port in {'Q', 'Q0', 'Q1', 'Q2', 'Q3', 'Q4', 'Q5', 'Q6', 'Q7', 'Q8', 'Q9', 'DF', 'LAG', 'LEAD'}:
|
|
tt.add_bel_pin(iol, port, wire, PinType.OUTPUT)
|
|
else:
|
|
tt.add_bel_pin(iol, port, wire, PinType.INPUT)
|
|
tdesc.tiletype = tiletype
|
|
return tt
|
|
|
|
# logic: luts, dffs, alu etc
|
|
def create_logic_tiletype(chip: Chip, db: chipdb, x: int, y: int, ttyp: int, tdesc: TypeDesc):
|
|
typename = "LOGIC"
|
|
tiletype = f"{typename}_{ttyp}"
|
|
if tdesc.sfx != 0:
|
|
tiletype += f"_{tdesc.sfx}"
|
|
tt = chip.create_tile_type(tiletype)
|
|
tt.extra_data = TileExtraData(chip.strs.id(typename))
|
|
|
|
lut_inputs = ['A', 'B', 'C', 'D']
|
|
# setup LUT wires
|
|
for i in range(8):
|
|
for inp_name in lut_inputs:
|
|
tt.create_wire(f"{inp_name}{i}", "LUT_INPUT")
|
|
tt.create_wire(f"F{i}", "LUT_OUT")
|
|
# experimental. the wire is false - it is assumed that DFF is always
|
|
# connected to the LUT's output F{i}, but we can place primitives
|
|
# arbitrarily and create a pass-through LUT afterwards.
|
|
# just out of curiosity
|
|
tt.create_wire(f"XD{i}", "FF_INPUT")
|
|
tt.create_wire(f"Q{i}", "FF_OUT")
|
|
# setup DFF wires
|
|
for j in range(3):
|
|
tt.create_wire(f"CLK{j}", "TILE_CLK")
|
|
tt.create_wire(f"LSR{j}", "TILE_LSR")
|
|
tt.create_wire(f"CE{j}", "TILE_CE")
|
|
# setup MUX2 wires
|
|
for j in range(8):
|
|
tt.create_wire(f"OF{j}", "MUX_OUT")
|
|
tt.create_wire(f"SEL{j}", "MUX_SEL")
|
|
tt.create_wire("OF30", "MUX_OUT")
|
|
# setup ALU wires
|
|
for j in range(6):
|
|
tt.create_wire(f"CIN{j}", "ALU_CIN")
|
|
tt.create_wire(f"COUT{j}", "ALU_COUT")
|
|
|
|
# create logic cells
|
|
for i in range(8):
|
|
# LUT
|
|
lut = tt.create_bel(f"LUT{i}", "LUT4", z = (i * 2 + 0))
|
|
for j, inp_name in enumerate(lut_inputs):
|
|
tt.add_bel_pin(lut, f"I{j}", f"{inp_name}{i}", PinType.INPUT)
|
|
tt.add_bel_pin(lut, "F", f"F{i}", PinType.OUTPUT)
|
|
if i < 6:
|
|
# FF data can come from LUT output, but we pretend that we can use
|
|
# any LUT input
|
|
tt.create_pip(f"F{i}", f"XD{i}")
|
|
for inp_name in lut_inputs:
|
|
tt.create_pip(f"{inp_name}{i}", f"XD{i}")
|
|
# FF
|
|
ff = tt.create_bel(f"DFF{i}", "DFF", z =(i * 2 + 1))
|
|
tt.add_bel_pin(ff, "D", f"XD{i}", PinType.INPUT)
|
|
tt.add_bel_pin(ff, "CLK", f"CLK{i // 2}", PinType.INPUT)
|
|
tt.add_bel_pin(ff, "Q", f"Q{i}", PinType.OUTPUT)
|
|
tt.add_bel_pin(ff, "SET", f"LSR{i // 2}", PinType.INPUT)
|
|
tt.add_bel_pin(ff, "RESET", f"LSR{i // 2}", PinType.INPUT)
|
|
tt.add_bel_pin(ff, "PRESET", f"LSR{i // 2}", PinType.INPUT)
|
|
tt.add_bel_pin(ff, "CLEAR", f"LSR{i // 2}", PinType.INPUT)
|
|
tt.add_bel_pin(ff, "CE", f"CE{i // 2}", PinType.INPUT)
|
|
|
|
# ALU
|
|
ff = tt.create_bel(f"ALU{i}", "ALU", z = i + ALU0_Z)
|
|
tt.add_bel_pin(ff, "SUM", f"F{i}", PinType.OUTPUT)
|
|
tt.add_bel_pin(ff, "COUT", f"COUT{i}", PinType.OUTPUT)
|
|
tt.add_bel_pin(ff, "CIN", f"CIN{i}", PinType.INPUT)
|
|
# pinout for the ADDSUB ALU mode
|
|
tt.add_bel_pin(ff, "I0", f"A{i}", PinType.INPUT)
|
|
tt.add_bel_pin(ff, "I1", f"B{i}", PinType.INPUT)
|
|
tt.add_bel_pin(ff, "I2", f"C{i}", PinType.INPUT)
|
|
tt.add_bel_pin(ff, "I3", f"D{i}", PinType.INPUT)
|
|
|
|
# wide luts
|
|
for i in range(4):
|
|
ff = tt.create_bel(f"MUX{i * 2}", "MUX2_LUT5", z = MUX20_Z + i * 4)
|
|
tt.add_bel_pin(ff, "I0", f"F{i * 2}", PinType.INPUT)
|
|
tt.add_bel_pin(ff, "I1", f"F{i * 2 + 1}", PinType.INPUT)
|
|
tt.add_bel_pin(ff, "O", f"OF{i * 2}", PinType.OUTPUT)
|
|
tt.add_bel_pin(ff, "S0", f"SEL{i * 2}", PinType.INPUT)
|
|
for i in range(2):
|
|
ff = tt.create_bel(f"MUX{i * 4 + 1}", "MUX2_LUT6", z = MUX21_Z + i * 8)
|
|
tt.add_bel_pin(ff, "I0", f"OF{i * 4 + 2}", PinType.INPUT)
|
|
tt.add_bel_pin(ff, "I1", f"OF{i * 4}", PinType.INPUT)
|
|
tt.add_bel_pin(ff, "O", f"OF{i * 4 + 1}", PinType.OUTPUT)
|
|
tt.add_bel_pin(ff, "S0", f"SEL{i * 4 + 1}", PinType.INPUT)
|
|
ff = tt.create_bel(f"MUX3", "MUX2_LUT7", z = MUX23_Z)
|
|
tt.add_bel_pin(ff, "I0", f"OF5", PinType.INPUT)
|
|
tt.add_bel_pin(ff, "I1", f"OF1", PinType.INPUT)
|
|
tt.add_bel_pin(ff, "O", f"OF3", PinType.OUTPUT)
|
|
tt.add_bel_pin(ff, "S0", f"SEL3", PinType.INPUT)
|
|
ff = tt.create_bel(f"MUX7", "MUX2_LUT8", z = MUX27_Z)
|
|
tt.add_bel_pin(ff, "I0", f"OF30", PinType.INPUT)
|
|
tt.add_bel_pin(ff, "I1", f"OF3", PinType.INPUT)
|
|
tt.add_bel_pin(ff, "O", f"OF7", PinType.OUTPUT)
|
|
tt.add_bel_pin(ff, "S0", f"SEL7", PinType.INPUT)
|
|
|
|
tdesc.tiletype = tiletype
|
|
return tt
|
|
|
|
def create_ssram_tiletype(chip: Chip, db: chipdb, x: int, y: int, ttyp: int, tdesc: TypeDesc):
|
|
# SSRAM is LUT based, so it's logic-like
|
|
tt = create_logic_tiletype(chip, db, x, y, ttyp, tdesc)
|
|
|
|
lut_inputs = ['A', 'B', 'C', 'D']
|
|
ff = tt.create_bel(f"RAM16SDP4", "RAM16SDP4", z = RAMW_Z)
|
|
for i in range(4):
|
|
tt.add_bel_pin(ff, f"DI[{i}]", f"{lut_inputs[i]}5", PinType.INPUT)
|
|
tt.add_bel_pin(ff, f"WAD[{i}]", f"{lut_inputs[i]}4", PinType.INPUT)
|
|
# RAD[0] is assumed to be connected to A3, A2, A1 and A0. But
|
|
# for now we connect it only to A0, the others will be connected
|
|
# directly during packing. RAD[1...3] - similarly.
|
|
tt.add_bel_pin(ff, f"RAD[{i}]", f"{lut_inputs[i]}0", PinType.INPUT)
|
|
tt.add_bel_pin(ff, f"DO[{i}]", f"F{i}", PinType.OUTPUT)
|
|
|
|
tt.add_bel_pin(ff, "CLK", "CLK2", PinType.INPUT)
|
|
tt.add_bel_pin(ff, "CE", "CE2", PinType.INPUT)
|
|
tt.add_bel_pin(ff, "WRE", "LSR2", PinType.INPUT)
|
|
return tt
|
|
|
|
# BSRAM
|
|
_bsram_inputs = {'CLK', 'OCE', 'CE', 'RESET', 'WRE'}
|
|
def create_bsram_tiletype(chip: Chip, db: chipdb, x: int, y: int, ttyp: int, tdesc: TypeDesc):
|
|
typename = "BSRAM"
|
|
tiletype = f"{typename}_{ttyp}"
|
|
if tdesc.sfx != 0:
|
|
tiletype += f"_{tdesc.sfx}"
|
|
tt = chip.create_tile_type(tiletype)
|
|
tt.extra_data = TileExtraData(chip.strs.id(typename))
|
|
|
|
portmap = db.grid[y][x].bels['BSRAM'].portmap
|
|
bsram = tt.create_bel("BSRAM", "BSRAM", z = BSRAM_Z)
|
|
|
|
def add_port_wire(tt, bel, name, wire_type = "BSRAM_I", port_type = PinType.INPUT):
|
|
wire = portmap[name]
|
|
if not tt.has_wire(wire):
|
|
if name.startswith('CLK'):
|
|
tt.create_wire(wire, "TILE_CLK")
|
|
else:
|
|
tt.create_wire(wire, wire_type)
|
|
tt.add_bel_pin(bel, name, wire, port_type)
|
|
|
|
for sfx in {'', 'A', 'B'}:
|
|
for inp in _bsram_inputs:
|
|
add_port_wire(tt, bsram, f"{inp}{sfx}")
|
|
for idx in range(3):
|
|
add_port_wire(tt, bsram, f"BLKSEL{sfx}{idx}")
|
|
for idx in range(14):
|
|
add_port_wire(tt, bsram, f"AD{sfx}{idx}")
|
|
for idx in range(18):
|
|
add_port_wire(tt, bsram, f"DI{sfx}{idx}")
|
|
add_port_wire(tt, bsram, f"DO{sfx}{idx}", "BSRAM_O", PinType.OUTPUT)
|
|
if not sfx:
|
|
for idx in range(18, 36):
|
|
add_port_wire(tt, bsram, f"DI{idx}")
|
|
add_port_wire(tt, bsram, f"DO{idx}", "BSRAM_O", PinType.OUTPUT)
|
|
|
|
tdesc.tiletype = tiletype
|
|
return tt
|
|
|
|
# PLL main tile
|
|
_pll_inputs = {'CLKFB', 'FBDSEL0', 'FBDSEL1', 'FBDSEL2', 'FBDSEL3',
|
|
'FBDSEL4', 'FBDSEL5', 'IDSEL0', 'IDSEL1', 'IDSEL2', 'IDSEL3',
|
|
'IDSEL4', 'IDSEL5', 'ODSEL0', 'ODSEL1', 'ODSEL2', 'ODSEL3',
|
|
'ODSEL4', 'ODSEL5', 'RESET', 'RESET_P', 'PSDA0', 'PSDA1',
|
|
'PSDA2', 'PSDA3', 'DUTYDA0', 'DUTYDA1', 'DUTYDA2', 'DUTYDA3',
|
|
'FDLY0', 'FDLY1', 'FDLY2', 'FDLY3', 'CLKIN', 'VREN'}
|
|
_pll_outputs = {'CLKOUT', 'LOCK', 'CLKOUTP', 'CLKOUTD', 'CLKOUTD3'}
|
|
def create_pll_tiletype(chip: Chip, db: chipdb, x: int, y: int, ttyp: int, tdesc: TypeDesc):
|
|
typename = "PLL"
|
|
tiletype = f"{typename}_{ttyp}"
|
|
if tdesc.sfx != 0:
|
|
tiletype += f"_{tdesc.sfx}"
|
|
|
|
# disabled PLLs
|
|
if tdesc.extra_func and 'disabled' in tdesc.extra_func and 'PLL' in tdesc.extra_func['disabled']:
|
|
tiletype += '_disabled'
|
|
tt = chip.create_tile_type(tiletype)
|
|
tt.extra_data = TileExtraData(chip.strs.id(typename))
|
|
tdesc.tiletype = tiletype
|
|
return tt
|
|
tt = chip.create_tile_type(tiletype)
|
|
tt.extra_data = TileExtraData(chip.strs.id(typename))
|
|
|
|
|
|
# wires
|
|
if chip.name == 'GW1NS-4':
|
|
pll_name = 'PLLVR'
|
|
bel_type = 'PLLVR'
|
|
else:
|
|
pll_name = 'RPLLA'
|
|
bel_type = 'rPLL'
|
|
portmap = db.grid[y][x].bels[pll_name].portmap
|
|
pll = tt.create_bel("PLL", bel_type, z = PLL_Z)
|
|
pll.flags = BEL_FLAG_GLOBAL
|
|
for pin, wire in portmap.items():
|
|
if pin in _pll_inputs:
|
|
tt.create_wire(wire, "PLL_I")
|
|
tt.add_bel_pin(pll, pin, wire, PinType.INPUT)
|
|
else:
|
|
assert pin in _pll_outputs, f"Unknown PLL pin {pin}"
|
|
tt.create_wire(wire, "PLL_O")
|
|
tt.add_bel_pin(pll, pin, wire, PinType.OUTPUT)
|
|
tdesc.tiletype = tiletype
|
|
return tt
|
|
|
|
# pinouts, packages...
|
|
_tbrlre = re.compile(r"IO([TBRL])(\d+)(\w)")
|
|
def create_packages(chip: Chip, db: chipdb):
|
|
def ioloc_to_tile_bel(ioloc):
|
|
side, num, bel_idx = _tbrlre.match(ioloc).groups()
|
|
if side == 'T':
|
|
row = 0
|
|
col = int(num) - 1
|
|
elif side == 'B':
|
|
row = db.rows - 1
|
|
col = int(num) - 1
|
|
elif side == 'L':
|
|
row = int(num) - 1
|
|
col = 0
|
|
elif side == 'R':
|
|
row = int(num) - 1
|
|
col = db.cols - 1
|
|
return (f'X{col}Y{row}', f'IOB{bel_idx}')
|
|
|
|
created_pkgs = set()
|
|
for partno_spd, partdata in db.packages.items():
|
|
pkgname, variant, spd = partdata
|
|
partno = partno_spd.removesuffix(spd) # drop SPEED like 'C7/I6'
|
|
if partno in created_pkgs:
|
|
continue
|
|
created_pkgs.add(partno)
|
|
pkg = chip.create_package(partno)
|
|
for pinno, pininfo in db.pinout[variant][pkgname].items():
|
|
io_loc, cfgs = pininfo
|
|
tile, bel = ioloc_to_tile_bel(io_loc)
|
|
pad_func = ""
|
|
for cfg in cfgs:
|
|
pad_func += cfg + "/"
|
|
pad_func = pad_func.rstrip('/')
|
|
bank = int(db.pin_bank[io_loc])
|
|
pad = pkg.create_pad(pinno, tile, bel, pad_func, bank)
|
|
|
|
# Extra chip data
|
|
def create_extra_data(chip: Chip, db: chipdb, chip_flags: int):
|
|
chip.extra_data = ChipExtraData(chip.strs, chip_flags, None)
|
|
chip.extra_data.create_bottom_io()
|
|
for net_a, net_b in db.bottom_io[2]:
|
|
chip.extra_data.add_bottom_io_cnd(net_a, net_b)
|
|
for diff_type in db.diff_io_types:
|
|
chip.extra_data.add_diff_io_type(diff_type)
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser(description='Make Gowin BBA')
|
|
parser.add_argument('-d', '--device', required=True)
|
|
parser.add_argument('-o', '--output', default="out.bba")
|
|
|
|
args = parser.parse_args()
|
|
|
|
device = args.device
|
|
with gzip.open(importlib.resources.files("apycula").joinpath(f"{device}.pickle"), 'rb') as f:
|
|
db = pickle.load(f)
|
|
|
|
chip_flags = 0;
|
|
if device not in {"GW1NS-4", "GW1N-9"}:
|
|
chip_flags &= CHIP_HAS_SP32;
|
|
|
|
X = db.cols;
|
|
Y = db.rows;
|
|
|
|
ch = Chip("gowin", device, X, Y)
|
|
|
|
# Init constant ids
|
|
ch.strs.read_constids(path.join(path.dirname(__file__), "constids.inc"))
|
|
|
|
# packages from parntnumbers
|
|
create_packages(ch, db)
|
|
|
|
# The manufacturer distinguishes by externally identical tiles, so keep
|
|
# these differences (in case it turns out later that there is a slightly
|
|
# different routing or something like that).
|
|
logic_tiletypes = db.tile_types['C']
|
|
io_tiletypes = db.tile_types['I']
|
|
ssram_tiletypes = db.tile_types['M']
|
|
pll_tiletypes = db.tile_types['P']
|
|
bsram_tiletypes = db.tile_types.get('B', set())
|
|
|
|
# Setup tile grid
|
|
for x in range(X):
|
|
for y in range(Y):
|
|
ttyp = db.grid[y][x].ttyp
|
|
if (x == 0 or x == X - 1) and (y == 0 or y == Y - 1):
|
|
assert ttyp not in created_tiletypes, "Duplication of corner types"
|
|
create_tiletype(create_corner_tiletype, ch, db, x, y, ttyp)
|
|
continue
|
|
elif ttyp in logic_tiletypes:
|
|
create_tiletype(create_logic_tiletype, ch, db, x, y, ttyp)
|
|
elif ttyp in ssram_tiletypes:
|
|
create_tiletype(create_ssram_tiletype, ch, db, x, y, ttyp)
|
|
elif ttyp in io_tiletypes:
|
|
create_tiletype(create_io_tiletype, ch, db, x, y, ttyp)
|
|
elif ttyp in pll_tiletypes:
|
|
create_tiletype(create_pll_tiletype, ch, db, x, y, ttyp)
|
|
elif ttyp in bsram_tiletypes:
|
|
create_tiletype(create_bsram_tiletype, ch, db, x, y, ttyp)
|
|
else:
|
|
create_tiletype(create_null_tiletype, ch, db, x, y, ttyp)
|
|
|
|
# Create nodes between tiles
|
|
create_nodes(ch, db)
|
|
create_extra_data(ch, db, chip_flags)
|
|
ch.write_bba(args.output)
|
|
if __name__ == '__main__':
|
|
main()
|