U-Boot
ATCA-F140 Installation and Use (6806800M67H
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1 stop bit
3. Boot the ATCA-F140 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-F140 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-F140 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.
These serial access parameters are the default values. These can be changed from within U-
Boot. The console port of the F140 blade also supports the baud rates of 38400 and 115200.
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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Содержание 6806800M67H
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