build/efinix: added argument to change synthesis options configurations

[trabucayre]

As mentioned in #1971, synthesis options like --mode may be adapted/configured at build time instead of hardcoded.

Solution proposed in #1971 imply to modify target and/or platform to set these options.

This PR address this issue by adding arguments to configure efx_map at build time.

Note: add efx_map aren't updated to use argument approach and it may make sense to have the same thing, at least, efx_pgm.

[enjoy-digital]

Thanks @trabucayre!

[AndrewD]

@trabucayre @enjoy-digital this doesn't build. There are typos (patch below) but with that fixed the build fails when calling the script. I reverted this change to have master work with efinity.

diff --git a/litex/build/efinix/efinity.py b/litex/build/efinix/efinity.py
index 5322536b3..20485013f 100644
--- a/litex/build/efinix/efinity.py
+++ b/litex/build/efinix/efinity.py
@@ -317,12 +317,12 @@ class EfinityToolchain(GenericToolchain):
             "--infer-clk-enable",           self._infer_clk_enable,
             "--infer-sync-set-reset",       "1",
             "--fanout-limit",               "0",
-            "--bram_output_regs_packing",   self._bram_output_regs_packaging,
+            "--bram_output_regs_packing",   self._bram_output_regs_packing,
             "--retiming",                   self._retiming,
             "--seq_opt",                    self._seq_opt,
             "--blast_const_operand_adders", "1",
-            "--mult_input_regs_packing",    self._mult_input_regs_packaging,
-            "--mult_output_regs_packing",   self._mult_output_regs_packaing,
+            "--mult_input_regs_packing",    self._mult_input_regs_packing,
+            "--mult_output_regs_packing",   self._mult_output_regs_packing,
             "--veri_option",                "verilog_mode=verilog_2k,vhdl_mode=vhdl_2008",
             "--work-dir",                   "work_syn",
             "--output-dir",                 "outflow",

[enjoy-digital]

Thanks @AndrewD for the feedback, we'll fix today.

[enjoy-digital]

@AndrewD: This should be good with 549d23e, will do more test later today.

[AndrewD]

Thanks @enjoy-digital - that builds again for us.