Kukui has two I2C ports with various peripherals including a battery
charger and a TCPCi-compatible port controller
Enable I2C so that these can be used. No drivers are provided so far.
Also update the GPIO documentation while we are here.
Signed-off-by: Simon Glass <sjg@chromium.org>
This adds support for the EC (embedded controller) on a Google
reference board with codename "kukui". This board uses the STM32F098RC
chip. We built an application for the board and verified UART
functionality on the board.
Signed-off-by: Jack Rosenthal <jrosenth@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>