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U-Boot
ATCA-F125 (6873M Artwork) Installation and Use (6806800J94K
)
102
1 stop bit
3. Boot the ATCA-F125 by resetting it or powering it up.
4. Press CTRL+C when you see a prompt onscreen.
U-Boot aborts the boot sequence and enters into a command line interface mode.
5.3
Configuring Boot Options
5.3.1
Configuring U-Boot for Network Boot
In this mode, U-Boot downloads and boots the Linux kernel from an external TFTP server and
mounts a root file system located on a network server.
This procedure assumes that the ATCA-F125 is connected to a TFTP server and that the U-Boot
command nfsboot has been defined. The external TFTP server must be connected using the
ATCA-F125 face plate connector "ETH5", which is the Ethernet management interface. Any
other interfaces, such as the base or fabric interfaces, are not yet functional at this stage of the
boot phase, as the corresponding drivers are not initialized yet.
For more information, see the U-Boot documentation.
1. Execute the following commands to specify the IP addresses of the ATCA-F125 and the
TFTP server by entering the following commands:
setenv ipaddr <IP address of ATCA-F125>
setenv serverip <IP address of TFTP server>
These serial access parameters are the default values. These can be changed from within U-
Boot. For details refer to the U-boot documentation.
If you want to disable the auto-boot feature of U-boot and make sure that U-Boot directly
enters into the command line interface mode after the next reboot/power up, enter the
following command:
setenv bootdelay -1 saveenv
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