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kasli_soc: fix master rtio clock

This commit is contained in:
mwojcik 2021-10-06 11:31:39 +02:00
parent 91fae0b6c9
commit 0f8a7f3a4c
1 changed files with 2 additions and 8 deletions
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10
src/gateware/kasli_soc.py
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@ -210,6 +210,7 @@ class GenericStandalone(SoCCore):
class GenericMaster(SoCCore): class GenericMaster(SoCCore):
def __init__(self, description, acpki=False): def __init__(self, description, acpki=False):
sys_clk_freq = 125e6 sys_clk_freq = 125e6
rtio_clk_freq = 125e6
self.acpki = acpki self.acpki = acpki
self.rustc_cfg = dict() self.rustc_cfg = dict()
@ -237,12 +238,8 @@ class GenericMaster(SoCCore):
self.csr_devices.append("drtio_transceiver") self.csr_devices.append("drtio_transceiver")
self.crg = self.ps7 # HACK for eem_7series to find the clock self.crg = self.ps7 # HACK for eem_7series to find the clock
self.submodules.rtio_crg = RTIOCRG(self.platform) self.submodules.rtio_crg = _RTIOClockMultiplier(rtio_clk_freq)
self.csr_devices.append("rtio_crg") self.csr_devices.append("rtio_crg")
self.platform.add_period_constraint(self.rtio_crg.cd_rtio.clk, 8.)
self.platform.add_false_path_constraints(
self.ps7.cd_sys.clk,
self.rtio_crg.cd_rtio.clk)
self.rtio_channels = [] self.rtio_channels = []
has_grabber = any(peripheral["type"] == "grabber" for peripheral in description["peripherals"]) has_grabber = any(peripheral["type"] == "grabber" for peripheral in description["peripherals"])
@ -330,9 +327,6 @@ class GenericMaster(SoCCore):
if has_grabber: if has_grabber:
self.rustc_cfg["has_grabber"] = None self.rustc_cfg["has_grabber"] = None
self.add_csr_group("grabber", self.grabber_csr_group) self.add_csr_group("grabber", self.grabber_csr_group)
for grabber in self.grabber_csr_group:
self.platform.add_false_path_constraints(
self.rtio_crg.cd_rtio.clk, getattr(self, grabber).deserializer.cd_cl.clk)
class GenericSatellite(SoCCore): class GenericSatellite(SoCCore):