bslathi19/cocotbext-axi
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Make wstrb optional

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This commit is contained in:
Alex Forencich
2021-12-27 19:44:30 -08:00
parent 8aab5a7294
commit 9c0592c16a
6 changed files with 32 additions and 9 deletions
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7
cocotbext/axi/axil_master.py
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@@ -119,6 +119,7 @@ class AxiLiteMasterWrite(Region, Reset):
self.strb_mask = 2**self.byte_lanes-1
self.awprot_present = hasattr(self.bus.aw, "awprot")
self.wstrb_present = hasattr(self.bus.w, "wstrb")
super().__init__(2**self.address_width, **kwargs)
@@ -135,7 +136,8 @@ class AxiLiteMasterWrite(Region, Reset):
else:
self.log.info(" %s: not present", sig)
assert self.byte_lanes == len(self.w_channel.bus.wstrb)
if self.wstrb_present:
assert self.byte_lanes == len(self.w_channel.bus.wstrb)
assert self.byte_lanes * self.byte_size == self.width
self._process_write_cr = None
@@ -269,6 +271,9 @@ class AxiLiteMasterWrite(Region, Reset):
aw.awaddr = word_addr + k*self.byte_lanes
aw.awprot = cmd.prot
if not self.wstrb_present and strb != self.strb_mask:
self.log.warning("Partial operation requested with wstrb not connected, write will be zero-padded (0x%x != 0x%x)", strb, self.strb_mask)
w = self.w_channel._transaction_obj()
w.wdata = val
w.wstrb = strb