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frontend/adapter/LiteDRAMNativePortConverter: simplify using ratio.

This commit is contained in:
Florent Kermarrec 2020-08-05 11:41:48 +02:00
parent a3dfc1db25
commit 06f7192fb6
1 changed files with 8 additions and 7 deletions
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15
litedram/frontend/adapter.py
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@ -348,15 +348,16 @@ class LiteDRAMNativePortConverter(Module):
# # #
mode = port_from.mode
ratio = port_from.data_width/port_to.data_width
if port_from.data_width > port_to.data_width:
converter = LiteDRAMNativePortDownConverter(port_from, port_to, reverse)
self.submodules += converter
elif port_from.data_width < port_to.data_width:
converter = LiteDRAMNativePortUpConverter(port_from, port_to, reverse)
self.submodules += converter
if ratio > 1:
# DownConverter
self.submodules.converter = LiteDRAMNativePortDownConverter(port_from, port_to, reverse)
elif ratio < 1:
# UpConverter
self.submodules.converter = LiteDRAMNativePortUpConverter(port_from, port_to, reverse)
else:
# Identity
self.comb += [
port_from.cmd.connect(port_to.cmd),
port_from.wdata.connect(port_to.wdata),