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frontend/axi: expose aw_burst2beat/ar_burst2beat

This commit is contained in:
Florent Kermarrec 2018-11-30 12:32:15 +01:00
parent da65a804be
commit 0d5e5543fb
1 changed files with 5 additions and 3 deletions
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8
litedram/frontend/axi.py
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@ -82,7 +82,7 @@ class LiteDRAMAXIBurst2Beat(Module):
# # # # # #
count = Signal(8) self.count = count = Signal(8)
size = Signal(8 + 4) size = Signal(8 + 4)
offset = Signal(8 + 4) offset = Signal(8 + 4)
@ -151,10 +151,11 @@ class LiteDRAMAXI2NativeW(Module):
# Burst to Beat # Burst to Beat
aw_buffer = stream.Buffer(ax_description(axi.address_width, axi.id_width)) aw_buffer = stream.Buffer(ax_description(axi.address_width, axi.id_width))
self.submodules += aw_buffer
self.comb += axi.aw.connect(aw_buffer.sink) self.comb += axi.aw.connect(aw_buffer.sink)
aw = stream.Endpoint(ax_description(axi.address_width, axi.id_width)) aw = stream.Endpoint(ax_description(axi.address_width, axi.id_width))
aw_burst2beat = LiteDRAMAXIBurst2Beat(aw_buffer.source, aw) aw_burst2beat = LiteDRAMAXIBurst2Beat(aw_buffer.source, aw)
self.submodules += aw_buffer, aw_burst2beat self.submodules.aw_burst2beat = aw_burst2beat
# Write Buffer # Write Buffer
w_buffer = stream.SyncFIFO(w_description(axi.data_width), buffer_depth) w_buffer = stream.SyncFIFO(w_description(axi.data_width), buffer_depth)
@ -215,10 +216,11 @@ class LiteDRAMAXI2NativeR(Module):
# Burst to Beat # Burst to Beat
ar_buffer = stream.Buffer(ax_description(axi.address_width, axi.id_width)) ar_buffer = stream.Buffer(ax_description(axi.address_width, axi.id_width))
self.submodules += ar_buffer
self.comb += axi.ar.connect(ar_buffer.sink) self.comb += axi.ar.connect(ar_buffer.sink)
ar = stream.Endpoint(ax_description(axi.address_width, axi.id_width)) ar = stream.Endpoint(ax_description(axi.address_width, axi.id_width))
ar_burst2beat = LiteDRAMAXIBurst2Beat(ar_buffer.source, ar) ar_burst2beat = LiteDRAMAXIBurst2Beat(ar_buffer.source, ar)
self.submodules += ar_buffer, ar_burst2beat self.submodules.ar_burst2beat = ar_burst2beat
# Read buffer # Read buffer
r_buffer = stream.SyncFIFO(r_description(axi.data_width, axi.id_width), buffer_depth) r_buffer = stream.SyncFIFO(r_description(axi.data_width, axi.id_width), buffer_depth)