tree fa9bb7ac974395c28206e353f1fb2e1fadebc12d
parent d971ee2180f448f125fb4e9e471cd10a61bf5ff8
author Artem Senichev <a.senichev@yadro.com> 1582104050 +0300
committer Artem Senichev <a.senichev@yadro.com> 1582104050 +0300

nicole: NCSI channel selector

NCSI channel number is selected depending on GPIO state of a pin
described in the device tree (gpio/nsci_cfg node).
Currently, this pin is controlled via MCU, and its state represents
Nicole's physical position inside a fabric.

Channel selector scheme:
* GPIO pin is LOW: channel 0;
* GPIO pin is HIGH: channel 1;
* invalid configuration or error: channel 0.

After changing pin's state it is necessary to reboot the BMC to apply
new channel number.

Signed-off-by: Artem Senichev <a.senichev@yadro.com>
Change-Id: I3a2a855b58ad233412a43ff1a0d17220b004d27c