litex/misoclib/mem/sdram/__init__.py

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from collections import namedtuple
PhySettingsT = namedtuple("PhySettings", "memtype dfi_databits nphases rdphase wrphase rdcmdphase wrcmdphase cl cwl read_latency write_latency")
def PhySettings(memtype, dfi_databits, nphases, rdphase, wrphase, rdcmdphase, wrcmdphase, cl, read_latency, write_latency, cwl=0):
return PhySettingsT(memtype, dfi_databits, nphases, rdphase, wrphase, rdcmdphase, wrcmdphase, cl, cwl, read_latency, write_latency)
GeomSettingsT = namedtuple("_GeomSettings", "bankbits rowbits colbits addressbits")
def GeomSettings(bankbits, rowbits, colbits):
return GeomSettingsT(bankbits, rowbits, colbits, max(rowbits, colbits))
TimingSettings = namedtuple("TimingSettings", "tRP tRCD tWR tWTR tREFI tRFC")