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| author | Clifford Wolf <clifford@clifford.at> | 2018-06-10 16:31:06 +0200 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2018-06-10 16:31:06 +0200 |
| commit | 602e6fab1e1d90a00b868733953a0d25632d8414 (patch) | |
| tree | e4920eb7f3f1d6dd9867b86ee75f4aac334f1081 /ice40/chipdb.py | |
| parent | 02b83d6db6c2d0d690b302459fbe490eaa5d140c (diff) | |
| download | nextpnr-602e6fab1e1d90a00b868733953a0d25632d8414.tar.gz nextpnr-602e6fab1e1d90a00b868733953a0d25632d8414.tar.bz2 nextpnr-602e6fab1e1d90a00b868733953a0d25632d8414.zip | |
Add support for iCE40 global buffers (currently only for 1k devices)
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Diffstat (limited to 'ice40/chipdb.py')
| -rw-r--r-- | ice40/chipdb.py | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/ice40/chipdb.py b/ice40/chipdb.py index 1477c78a..3c3dc078 100644 --- a/ice40/chipdb.py +++ b/ice40/chipdb.py @@ -293,6 +293,16 @@ def add_bel_ram(x, y): add_bel_input(bel, wire_names[(x, y1, "ram/RCLKE")], "RCLKE") add_bel_input(bel, wire_names[(x, y1, "ram/RE")], "RE") +def add_bel_gb(x, y, g): + bel = len(bel_name) + bel_name.append("%d_%d_gb" % (x, y)) + bel_type.append("SB_GB") + bel_pos.append((x, y, 0)) + bel_wires.append(list()) + + add_bel_input(bel, wire_names[(x, y, "fabout")], "USER_SIGNAL_TO_GLOBAL_BUFFER") + add_bel_output(bel, wire_names[(x, y, "glb_netwk_%d" % g)], "GLOBAL_BUFFER_OUTPUT") + for tile_xy, tile_type in sorted(tiles.items()): if tile_type == "logic": for i in range(8): @@ -303,6 +313,16 @@ for tile_xy, tile_type in sorted(tiles.items()): if tile_type == "ramb": add_bel_ram(tile_xy[0], tile_xy[1]) +if dev_name == "1k": + add_bel_gb( 7, 0, 0) + add_bel_gb( 7, 17, 1) + add_bel_gb(13, 9, 2) + add_bel_gb( 0, 9, 3) + add_bel_gb( 6, 17, 4) + add_bel_gb( 6, 0, 5) + add_bel_gb( 0, 8, 6) + add_bel_gb(13, 8, 7) + print('#include "chip.h"') for bel in range(len(bel_name)): |