Force SPARC/CPCI-520G, Technical Reference Manual

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FORCE OpenBoot Enhancements Flash EPROM Support
SPARC/CPCI-52x(G) Page 115
7.2.3 Loading and Executing Programs from User Flash EPROM
Besides the ability to load and execute an executable image from disk,
from a network component, or from other components, the
SPARC/CPCI-52x(G) OpenBoot also provides a convenient way to load
and execute an executable image from available user flash EPROM. The
executable image to be loaded has to be
• a binary image in
a.out
format,
• a FORTH program,
• or an FCode program.
Manual loading To load and execute an image from the flash EPROM use the device alias
flash
together with the
boot
command:
ok boot flash
Automatic
loading The following NVRAM configuration parameters can be modified to de-
termine whether or not the system loads an executable image automati-
cally after a power-up cycle or system reset:
auto-boot?
boot-device
Example:
Assume that the CPU board provides 1 user flash EPROM device
which is 1 MByte in size. The following commands load and execute
an image from the flash EPROM automatically after a power-up cycle
or system reset:
ok setenv bootflash-#devices 1
bootflash-#devices = 1
ok setenv bootflash-#megs 1
bootflash-#megs = 1
ok setenv boot-device flash
boot-device = flash
ok setenv auto-boot? true
auto-boot? = true
ok reset