liteeth/phy/__init__.py: add more comments

diff --git a/misoclib/com/liteeth/phy/__init__.py b/misoclib/com/liteeth/phy/__init__.py
index df9623aa993ca793e322b14840c562a995df56e7..1b1c354fd34c284824f2bbd1d2aeb8450ac90407 100644 (file)
--- a/misoclib/com/liteeth/phy/__init__.py
+++ b/misoclib/com/liteeth/phy/__init__.py
@@ -4,6 +4,7 @@ from misoclib.com.liteeth.generic import *
 def LiteEthPHY(clock_pads, pads, **kwargs):
        # Autodetect PHY
        if hasattr(pads, "source_stb"):
+               # This is a simulation PHY
                from misoclib.com.liteeth.phy.sim import LiteEthPHYSim
                return LiteEthPHYSim(pads)
        elif hasattr(clock_pads, "gtx") and flen(pads.tx_data) == 8:
@@ -16,6 +17,7 @@ def LiteEthPHY(clock_pads, pads, **kwargs):
                        from misoclib.com.liteeth.phy.gmii import LiteEthPHYGMII
                        return LiteEthPHYGMII(clock_pads, pads, **kwargs)
        elif flen(pads.tx_data) == 4:
+               # This is a MII PHY
                from misoclib.com.liteeth.phy.mii import LiteEthPHYMII
                return LiteEthPHYMII(clock_pads, pads, **kwargs)
        else: