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authorwhitequark <whitequark@whitequark.org>2020-01-01 09:48:39 +0000
committerwhitequark <whitequark@whitequark.org>2020-04-03 05:51:40 +0000
commitebee746ad21b9f1fe37f50908bdc5d219880e6bb (patch)
treef18a6d151d8d09b335a98ad3d723dd158f4692cc /techlibs/ice40
parente0def9e4d93bc99a65c3c918b53fee17fbe3a2ba (diff)
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ice40: do not map FFRAM if explicitly requested otherwise.
Diffstat (limited to 'techlibs/ice40')
-rw-r--r--techlibs/ice40/synth_ice40.cc4
1 files changed, 3 insertions, 1 deletions
diff --git a/techlibs/ice40/synth_ice40.cc b/techlibs/ice40/synth_ice40.cc
index fdb203dcb..22cac7d7d 100644
--- a/techlibs/ice40/synth_ice40.cc
+++ b/techlibs/ice40/synth_ice40.cc
@@ -304,7 +304,9 @@ struct SynthIce40Pass : public ScriptPass
if (check_label("map_ffram"))
{
run("opt -fast -mux_undef -undriven -fine");
- run("memory_map");
+ run("memory_map -iattr -attr !ram_block -attr !rom_block -attr logic_block "
+ "-attr syn_ramstyle=auto -attr syn_ramstyle=registers "
+ "-attr syn_romstyle=auto -attr syn_romstyle=logic");
run("opt -undriven -fine");
}