From: Eddie Hung <eddie@fpgeh.com>
Date: Mon, 25 Nov 2019 20:04:11 +0000 (-0800)
Subject: clkpart to analyse async flops too
X-Git-Tag: working-ls180~881^2^2~139
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=63b7a48fbc250dd16847eed95d5ce79417cd7d2f;p=yosys.git

clkpart to analyse async flops too
---

diff --git a/passes/hierarchy/clkpart.cc b/passes/hierarchy/clkpart.cc
index b79625540..15a5328b9 100644
--- a/passes/hierarchy/clkpart.cc
+++ b/passes/hierarchy/clkpart.cc
@@ -161,6 +161,14 @@ struct ClkPartPass : public Pass {
 					bool this_en_pol = !enable_mode || cell->type.in(ID($_DFFE_NP_), ID($_DFFE_PP_));
 					key = clkdomain_t(this_clk_pol, assign_map(cell->getPort(ID(C))), this_en_pol, enable_mode ? assign_map(cell->getPort(ID(E))) : RTLIL::SigSpec());
 				}
+				else
+				if (cell->type.in(ID($_DFF_NN0_), ID($_DFF_NN1_), ID($_DFF_NP0_), ID($_DFF_NP1_),
+							ID($_DFF_PN0_), ID($_DFF_PN1_), ID($_DFF_PP0_), ID($_DFF_PP1_)))
+				{
+					bool this_clk_pol = cell->type.in(ID($_DFF_PN0_), ID($_DFF_PN1_), ID($_DFF_PP0_), ID($_DFF_PP1_));
+					log_assert(!enable_mode); // TODO
+					key = clkdomain_t(this_clk_pol, assign_map(cell->getPort(ID(C))), true, RTLIL::SigSpec());
+				}
 				else
 					continue;