python3 make.py --platform saturn
Traceback (most recent call last):
  File "make.py", line 135, in <module>
    main()
  File "make.py", line 104, in main
    soc = SoC(platform, **soc_sdram_argdict(args), **dict(args.target_option))
  File "/home/dell/HDMI2USB-litex-firmware/targets/saturn/base.py", line 171, in __init__
    **kwargs)
  File "/home/dell/HDMI2USB-litex-firmware/third_party/litex/litex/soc/integration/soc_sdram.py", line 39, in __init__
    SoCCore.__init__(self, platform, clk_freq, **kwargs)
  File "/home/dell/HDMI2USB-litex-firmware/third_party/litex/litex/soc/integration/soc_core.py", line 142, in __init__
    self.submodules.uart_phy = uart.RS232PHY(platform.request("serial"), clk_freq, uart_baudrate)
  File "/home/dell/HDMI2USB-litex-firmware/third_party/litex/litex/soc/cores/uart.py", line 116, in __init__
    self.submodules.tx = RS232PHYTX(pads, self._tuning_word.storage)
  File "/home/dell/HDMI2USB-litex-firmware/third_party/litex/litex/soc/cores/uart.py", line 89, in __init__
    pads.tx.eq(0)
  File "/home/dell/HDMI2USB-litex-firmware/third_party/litex/litex/gen/fhdl/structure.py", line 484, in __init__
    raise TypeError("Not all test body objects are Migen statements")
TypeError: Not all test body objects are Migen statements