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soc/cores/clock: add with_reset parameter to create_clkout on iCE40PLL/ECP5PLL (similar to others PLLs).

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Avoid instantiating the AsyncResetSynchronizer manually.
This commit is contained in:
Florent Kermarrec 2020-09-01 11:50:08 +02:00
parent f07efcb97f
commit 2538b2c300
1 changed files with 6 additions and 2 deletions
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8
litex/soc/cores/clock.py
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@ -584,13 +584,15 @@ class iCE40PLL(Module):
self.clkin_freq = freq self.clkin_freq = freq
register_clkin_log(self.logger, clkin, freq) register_clkin_log(self.logger, clkin, freq)
def create_clkout(self, cd, freq, margin=1e-2): def create_clkout(self, cd, freq, margin=1e-2, with_reset=True):
(clko_freq_min, clko_freq_max) = self.clko_freq_range (clko_freq_min, clko_freq_max) = self.clko_freq_range
assert freq >= clko_freq_min assert freq >= clko_freq_min
assert freq <= clko_freq_max assert freq <= clko_freq_max
assert self.nclkouts < self.nclkouts_max assert self.nclkouts < self.nclkouts_max
clkout = Signal() clkout = Signal()
self.clkouts[self.nclkouts] = (clkout, freq, 0, margin) self.clkouts[self.nclkouts] = (clkout, freq, 0, margin)
if with_reset:
self.specials += AsyncResetSynchronizer(cd, ~self.locked | self.reset)
self.comb += cd.clk.eq(clkout) self.comb += cd.clk.eq(clkout)
create_clkout_log(self.logger, cd.name, freq, margin, self.nclkouts) create_clkout_log(self.logger, cd.name, freq, margin, self.nclkouts)
self.nclkouts += 1 self.nclkouts += 1
@ -684,13 +686,15 @@ class ECP5PLL(Module):
self.clkin_freq = freq self.clkin_freq = freq
register_clkin_log(self.logger, clkin, freq) register_clkin_log(self.logger, clkin, freq)
def create_clkout(self, cd, freq, phase=0, margin=1e-2): def create_clkout(self, cd, freq, phase=0, margin=1e-2, with_reset=True):
(clko_freq_min, clko_freq_max) = self.clko_freq_range (clko_freq_min, clko_freq_max) = self.clko_freq_range
assert freq >= clko_freq_min assert freq >= clko_freq_min
assert freq <= clko_freq_max assert freq <= clko_freq_max
assert self.nclkouts < self.nclkouts_max assert self.nclkouts < self.nclkouts_max
clkout = Signal() clkout = Signal()
self.clkouts[self.nclkouts] = (clkout, freq, phase, margin) self.clkouts[self.nclkouts] = (clkout, freq, phase, margin)
if with_reset:
self.specials += AsyncResetSynchronizer(cd, ~self.locked | self.reset)
self.comb += cd.clk.eq(clkout) self.comb += cd.clk.eq(clkout)
create_clkout_log(self.logger, cd.name, freq, margin, self.nclkouts) create_clkout_log(self.logger, cd.name, freq, margin, self.nclkouts)
self.nclkouts += 1 self.nclkouts += 1