add quick instructions on how to run pinouts.py to get some debug info

diff --git a/src/soc/config/pinouts.py b/src/soc/config/pinouts.py
index 1fb02fdbe84b4b2cbb8b4a299e8d44494d93beea..95129b1999e733b44c5f46c265d9b1c478c4a8f4 100644 (file)
--- a/src/soc/config/pinouts.py
+++ b/src/soc/config/pinouts.py
@@ -109,6 +109,11 @@ def load_pinouts(chipname=None):
     return chip
 
 if __name__ == '__main__':
+    # run this with:
+    # git submodule update --init --remote --recursive
+    # make mkpinmux
+    # python3 soc/config/pinouts.py ngi_pointer (or ls180, or other)
+    # it will print out a stack of debug stuff
     if len(sys.argv) == 2:
         chipname = sys.argv[1]
     else: