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common/PHYPadsReducer: make Cat optional (disabled by default).

This commit is contained in:
Florent Kermarrec 2020-09-04 11:10:48 +02:00
parent 543a94dd33
commit 3bab6f2024
1 changed files with 9 additions and 6 deletions
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15
litedram/common.py
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@ -66,17 +66,20 @@ class PHYPadsReducer:
For testing purposes, we often need to use only some of the DRAM modules. PHYPadsReducer allows
selecting specific modules and avoid re-definining dram pins in the Platform for this.
"""
def __init__(self, pads, modules):
self.pads = pads
self.modules = modules
def __init__(self, pads, modules, with_cat=False):
self.pads = pads
self.modules = modules
self.with_cat = with_cat
def __getattr__(self, name):
if name in ["dq"]:
return Cat(Array([getattr(self.pads, name)[8*i + j]
r = Array([getattr(self.pads, name)[8*i + j]
for i in self.modules
for j in range(8)]))
for j in range(8)])
return r if not self.with_cat else Cat(r)
if name in ["dm", "dqs", "dqs_p", "dqs_n"]:
return Cat(Array([getattr(self.pads, name)[i] for i in self.modules]))
r = Array([getattr(self.pads, name)[i] for i in self.modules])
return r if not self.with_cat else Cat(r)
else:
return getattr(self.pads, name)