targets/ppro: use migen reset synchronizer

diff --git a/targets/ppro.py b/targets/ppro.py
index 5416316ca5c4c6b6444526beef82cdcbb86d46a5..bd811d712851df84170e91f6843eaf50ae27138d 100644 (file)
--- a/targets/ppro.py
+++ b/targets/ppro.py
@@ -1,6 +1,7 @@
 from fractions import Fraction
 
 from migen.fhdl.std import *
+from migen.genlib.resetsync import AsyncResetSynchronizer
 
 from misoclib import lasmicon, spiflash
 from misoclib.sdramphy import gensdrphy
@@ -48,8 +49,7 @@ class _CRG(Module):
                        )
                self.specials += Instance("BUFG", i_I=pll[4], o_O=self.cd_sys.clk)
                self.specials += Instance("BUFG", i_I=pll[5], o_O=self.cd_sys_ps.clk)
-               self.specials += Instance("FD", p_INIT=1, i_D=~pll_lckd,
-                               i_C=self.cd_sys.clk, o_Q=self.cd_sys.rst)
+               self.specials += AsyncResetSynchronizer(self.cd_sys, ~pll_lckd)
 
                self.specials += Instance("ODDR2", p_DDR_ALIGNMENT="NONE",
                                p_INIT=0, p_SRTYPE="SYNC",