Artesyn COMX-P40x0 ENP2 Installation and Use (January 2015) - Manual (Page 115)

BSP
COMX-P40x0 ENP2 Installation and Use (6806800R95C) 115
U-Boot provides "wdt" commands to operate on the WDT features.
The following are usage examples of "wdt" for the COMX-P40x0 ENP2 module.
 wdt status
WDT: disabled.
 wdt enable 5
WDT: enabled with timeout 5 seconds.
 wdt reset
System reset.
7.15.4 DTT
An I2C thermal sensor ADT7411 (U36) is installed and is located on I2C<1>. The ADT7411 is
used to monitor the CPU temperature. Boot up message in the U-Boot will read as "DTT:
ADT7411@4C".
U-Boot provides "dtt" to display the CPU temperature. Here is an example of dtt usage:
 dtt
DTT1: CPU Temperature: 48 C
7.16 SPI
The COMX-P40x0 ENP2 module provides a SPI bus from the P40x0 CPU with four chip-select
signals. All SPI bus signals are routed to COM Express connectors.
For more information on the distribution of the SPI bus, see SPI Interface on page 81 .
wdt reset - Resets WDT
wdt status - Checks the current status of WDT
wdt disable - Disables WDT
wdt enable - Enables WDT with timeout seconds.
range [1...124]