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kc705: add drtio 100mhz clk switch

This commit is contained in:
mwojcik 2021-12-03 11:53:48 +08:00 committed by Sébastien Bourdeauducq
parent f281112779
commit 7953f3d705
1 changed files with 16 additions and 8 deletions
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24
artiq/gateware/targets/kc705.py
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@ -129,7 +129,7 @@ class _StandaloneBase(MiniSoC, AMPSoC):
}
mem_map.update(MiniSoC.mem_map)
def __init__(self, gateware_identifier_str=None, **kwargs):
def __init__(self, gateware_identifier_str=None, drtio_100mhz=False, **kwargs):
MiniSoC.__init__(self,
cpu_type="vexriscv",
cpu_bus_width=64,
@ -207,7 +207,7 @@ class _MasterBase(MiniSoC, AMPSoC):
}
mem_map.update(MiniSoC.mem_map)
def __init__(self, gateware_identifier_str=None, **kwargs):
def __init__(self, gateware_identifier_str=None, drtio_100mhz=False, **kwargs):
MiniSoC.__init__(self,
cpu_type="vexriscv",
cpu_bus_width=64,
@ -236,11 +236,14 @@ class _MasterBase(MiniSoC, AMPSoC):
platform.request("sfp"), platform.request("user_sma_mgt")
]
# 1000BASE_BX10 Ethernet compatible, 125MHz RTIO clock
rtio_clk_freq = 100e6 if drtio_100mhz else 125e6
# 1000BASE_BX10 Ethernet compatible, 100/125MHz RTIO clock
self.submodules.drtio_transceiver = gtx_7series.GTX(
clock_pads=platform.request("si5324_clkout"),
pads=data_pads,
sys_clk_freq=self.clk_freq)
sys_clk_freq=self.clk_freq,
rtio_clk_freq=rtio_clk_freq)
self.csr_devices.append("drtio_transceiver")
self.submodules.rtio_tsc = rtio.TSC("async", glbl_fine_ts_width=3)
@ -341,7 +344,7 @@ class _SatelliteBase(BaseSoC):
}
mem_map.update(BaseSoC.mem_map)
def __init__(self, gateware_identifier_str=None, sma_as_sat=False, **kwargs):
def __init__(self, gateware_identifier_str=None, sma_as_sat=False, drtio_100mhz=False, **kwargs):
BaseSoC.__init__(self,
cpu_type="vexriscv",
cpu_bus_width=64,
@ -369,11 +372,14 @@ class _SatelliteBase(BaseSoC):
if sma_as_sat:
data_pads = data_pads[::-1]
# 1000BASE_BX10 Ethernet compatible, 125MHz RTIO clock
rtio_clk_freq = 100e6 if drtio_100mhz else 125e6
# 1000BASE_BX10 Ethernet compatible, 100/125MHz RTIO clock
self.submodules.drtio_transceiver = gtx_7series.GTX(
clock_pads=platform.request("si5324_clkout"),
pads=data_pads,
sys_clk_freq=self.clk_freq)
sys_clk_freq=self.clk_freq,
rtio_clk_freq=rtio_clk_freq)
self.csr_devices.append("drtio_transceiver")
self.submodules.rtio_tsc = rtio.TSC("sync", glbl_fine_ts_width=3)
@ -673,6 +679,8 @@ def main():
"(default: %(default)s)")
parser.add_argument("--gateware-identifier-str", default=None,
help="Override ROM identifier")
parser.add_argument("--drtio100mhz", action="store_true", default=False,
help="DRTIO systems only - use 100MHz RTIO clock")
args = parser.parse_args()
variant = args.variant.lower()
@ -681,7 +689,7 @@ def main():
except KeyError:
raise SystemExit("Invalid variant (-V/--variant)")
soc = cls(gateware_identifier_str=args.gateware_identifier_str, **soc_kc705_argdict(args))
soc = cls(gateware_identifier_str=args.gateware_identifier_str, drtio_100mhz=args.drtio100mhz, **soc_kc705_argdict(args))
build_artiq_soc(soc, builder_argdict(args))