tree dfff775b7cfedfde73fb26d6f7207ba60d49d4c8
parent 642980e96916a8be053bc036ab4c2a88cce69b0a
author Patrick Shickel <pshickel@google.com> 1565990418 -0700
committer Patrick Shickel <pshickel@google.com> 1565990620 -0700

[firmware] configure pull-up for serial UART RX pin

The serial UART RX pin was being (mis)configured such that it was floating when
the pin is not in use, which was leading to an IRQ storm. Resolved by
configuring an internal pull-up on this pin

Change-Id: I33707d94963ebeba8eaede3af2182b83b5e30e57