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efinix: when a GPIO block is added, also add pin properties

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This commit is contained in:
Franck Jullien 2021-12-17 10:20:06 +01:00
parent df34b3ae6a
commit df20ea5aa8
3 changed files with 51 additions and 1 deletions
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2
litex/build/efinix/common.py
View file

@ -69,6 +69,7 @@ class EfinixTristateImpl(Module):
for bit in range(nbits):
io_name = platform.get_pin_name(io[bit])
io_loc = platform.get_pin_location(io[bit])
io_prop = platform.get_pin_properties(io[bit])
io_o = platform.add_iface_io(io_name + "_OUT")
io_oe = platform.add_iface_io(io_name + "_OE")
io_i = platform.add_iface_io(io_name + "_IN")
@ -81,6 +82,7 @@ class EfinixTristateImpl(Module):
"mode" : "INOUT",
"name" : io_name,
"location" : [io_loc[0]],
"properties" : io_prop
}
platform.toolchain.ifacewriter.blocks.append(block)

19
litex/build/efinix/ifacewriter.py
View file

@ -108,6 +108,7 @@ design.create("{2}", "{3}", "./../gateware", overwrite=True)
def generate_gpio(self, block, verbose=True):
name = block["name"]
mode = block["mode"]
prop = block["properties"]
cmd = ""
if mode == "INOUT":
@ -118,6 +119,9 @@ design.create("{2}", "{3}", "./../gateware", overwrite=True)
cmd += f'design.create_inout_gpio("{name}",{block["size"]-1},0)\n'
for i, pad in enumerate(block["location"]):
cmd += f'design.assign_pkg_pin("{name}[{i}]","{pad}")\n'
if prop:
for p, val in prop:
cmd += 'design.set_property("{}","{}","{}")\n'.format(name, p, val)
cmd += "\n"
return cmd
@ -132,6 +136,10 @@ design.create("{2}", "{3}", "./../gateware", overwrite=True)
if "in_reg" in block:
cmd += f'design.set_property("{name}","IN_REG","{block["in_reg"]}")\n'
cmd += f'design.set_property("{name}","IN_CLK_PIN","{block["in_clk_pin"]}")\n'
if prop:
for p, val in prop:
cmd += 'design.set_property("{}","{}","{}")\n'.format(name, p, val)
cmd += "\n"
return cmd
if mode == "OUTPUT":
@ -150,6 +158,9 @@ design.create("{2}", "{3}", "./../gateware", overwrite=True)
if "drive_strength" in block:
cmd += 'design.set_property("{}","DRIVE_STRENGTH","4")\n'.format(name, block["drive_strength"])
if prop:
for p, val in prop:
cmd += 'design.set_property("{}","{}","{}")\n'.format(name, p, val)
cmd += "\n"
return cmd
@ -157,12 +168,20 @@ design.create("{2}", "{3}", "./../gateware", overwrite=True)
cmd += 'design.create_input_clock_gpio("{}")\n'.format(name)
cmd += 'design.set_property("{}","IN_PIN","{}")\n'.format(name, name)
cmd += 'design.assign_pkg_pin("{}","{}")\n\n'.format(name, block["location"])
if prop:
for p, val in prop:
cmd += 'design.set_property("{}","{}","{}")\n'.format(name, p, val)
cmd += "\n"
return cmd
if mode == "OUTPUT_CLK":
cmd += 'design.create_clockout_gpio("{}")\n'.format(name)
cmd += 'design.set_property("{}","OUT_CLK_PIN","{}")\n'.format(name, name)
cmd += 'design.assign_pkg_pin("{}","{}")\n\n'.format(name, block["location"])
if prop:
for p, val in prop:
cmd += 'design.set_property("{}","{}","{}")\n'.format(name, p, val)
cmd += "\n"
return cmd
cmd = "# TODO: " + str(block) +"\n"

31
litex/build/efinix/platform.py
View file

@ -86,7 +86,36 @@ class EfinixPlatform(GenericPlatform):
return [pins[idx]]
return None
def get_pin_name(self, sig):
def get_pin_properties(self, sig):
ret = []
if sig is None:
return None
assert len(sig) == 1
if isinstance(sig, _Slice):
sig = sig.value
sc = self.constraint_manager.get_sig_constraints()
for s, pins, others, resource in sc:
if (s == sig) and (pins[0] != 'X'):
for o in others:
if isinstance(o, IOStandard):
ret.append(('IO_STANDARD', o.name))
if isinstance(o, Misc):
if o.misc in ["WEAK_PULLUP", "WEAK_PULLDOWN"]:
prop = "PULL_OPTION"
val = o.misc
if "DRIVE_STRENGTH" in o.misc:
prop = "DRIVE_STRENGTH"
val = o.misc.split("=")[1]
ret.append((prop, val))
if "SLEWRATE" in o.misc:
prop = "SLEW_RATE"
val = "1"
ret.append((prop, val))
return ret
return None
def get_pin_name(self, sig, without_index=False):
if sig is None:
return None
assert len(sig) == 1