tree 918fa4c51b5cd6f44cb099a105bf1ab5c4ae3fe4
parent f35e6b7ecc6b5c5fdb561643831082226c586b6e
author Hieu Huynh <hieuh@os.amperecomputing.com> 1657621105 +0000
committer Thang Q. Nguyen <thang@os.amperecomputing.com> 1668485673 +0700

meta-ampere: mtmitchell: support system firmware hang handler

Monitors GPIOF4 for 1P system and GPION5 for 2P system to detect if
system firmware hang. If these GPIOs stop asserting for more than three
seconds, BMC will trigger events and reset the system.

Tested:
1. Simulate the GPIO that deasserted for more than three seconds.
2. Fail to boot to Host, check the event log is created
   and system will be reset.

Signed-off-by: Hieu Huynh <hieuh@os.amperecomputing.com>
Change-Id: I2c2d5d50e5ebd6d9b9e3435ab1c17393dac1d9cf