Artesyn ATCA-8310 Installation and Use (May 2014) - Manual (Page 168)

U-Boot
ATCA-8310 Installation and Use (6806800M72E) 168
6.2.1.2.3 Variables for Controlling the Boot Progress
Table 6-3 Variables for Controlling the Boot Progress
Variable Name Default Description
bcm_config_dis undefined When set, the broadcom switch will not be accessed by u-boot
marvell_config_dis undefined When set, the Marvell (base) switch will not be accessed by u-boot
rtm_config_dis undefined When set, the RTM will not be accessed by u-boot
sets_config_dis undefined When set, the ACS8520 will not be accessed by u-boot
srio_config_dis undefined When set, the CPU SRIO interfaces and the TSI572 switch will not be
accessed by u-boot
dsp_config_dis undefined When set, the DSPs will not be accessed by u-boot
gpp_config_dis undefined When set, the GPP will not be initialized by u-boot
bmc_wd_timeout undefined Configures the IPMI watchdog time-out for booting the OS in
seconds. Setting it to -1 disables the IPMI watchdog
gpp_autostart undefined  If set to "off", the GPP will not be taken out of reset.
 If set to "force", the GPP will be restarted each time the SPP
starts
 In all other cases, the GPP is only started if it is in reset when u-
boot starts. Otherwise it's left running without initializing the
parameter area.
ethdefault undefined The default network interface to be configured. If set, the "ethact"
variable is initially assigned to the value of this parameter.
boot_fstypes undefined If set, determines which file system types the "runscript" command
should use.
hwconfig undefined Can be used to configure DDR3 memory initialization parameters.
inicmd undefined A sequence of commands invoked at the final step if the boot
sequence (before invoking "bootcmd" or entering the command
shell).
bootcmd run $ramboot A sequence of commands executed to boot the operating system
(via auto boot or the "boot" command).
bootargs undefined Arguments for the operating system (i.e. the linux kernel command
line or the vxWorks boot parameters).