tree af3b4547ce51105dc04be3e2a612f20c251b527e
parent 31d103b9f6bfdcf6460744df9e3deef3aa6db00e
author Harald Welte <laforge@osmocom.org> 1622648001 +0200
committer Harald Welte <laforge@osmocom.org> 1622667430 +0200

octsimtest: Switch direction of I/O level shifter depending on uart tx / rx

Contrary to other hardware designs, octsimtest has a level-shifter in
the I/O line to support testing with 1.8, 3 and 5V.  This level shifter
is bi-directional, but the direction needs to be explicitly specified
via the SIM_IO_DIR signal attached to PA26.

Change-Id: I44171363b5bd69d6049b12c86f8143be83557cb2