Nick Sanders 15819d06c8 tigertail: support vref on uart ...

Support a level shifter for both 1.8v and 3.3v
uarts on SBU.

BRANCH=None
BUG=b:35849284
TEST=ran on tigertail, both 1.8v and 3.3v detected.

Change-Id: I76d545b582c6ed15086941513d5de4cd6783ac16
Signed-off-by: Nick Sanders <nsanders@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/575595
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>

2017-07-21 21:24:13 -07:00

..

board.c

tigertail: support vref on uart

2017-07-21 21:24:13 -07:00

board.h

tigertail: support vref on uart

2017-07-21 21:24:13 -07:00

build.mk

tigertail: usb-c mux

2017-03-21 16:47:38 -07:00

ec.tasklist

tigertail: usb-c mux

2017-03-21 16:47:38 -07:00

gpio.inc

tigertail: support vref on uart

2017-07-21 21:24:13 -07:00