Emerson ATCA-9305 Computer Hardware User Manual


 
Management Processor Monitor: Basic Operation
10009109-01 ATCA-9305 User’s Manual
9-3
BASIC OPERATION
The monitor performs various configuration tasks upon power-up or reset. This section
describes the monitor operation during initialization of the ATCA-9305 board. The flow-
chart (see
Fig. 9-2) illustrates the power-up and global reset sequence (bold text indicates
environment variables).
Power-up/Reset Sequence
The ATCA-9305 monitor follows the boot sequence in Fig.9-2 before auto-booting the oper-
ating system or application software. At power-up or board reset, the monitor performs
hardware initialization, diagnostic routines, autoboot procedures, free memory initializa-
tion, and if necessary, invokes the command line. See
Fig. 3-4 for the Cavium CN5860 pro-
cessor boot sequence. See
Ta bl e 9 - 6 for default environment variables settings.
CHECKBOARD get processor and bus speeds done 0x03
SDRAM_INIT RAM / ECC init done 0x04
AFTER_RELOC U-Boot relocated to RAM done 0x05
MISC_R final init including Ethernet done 0x06
GONE_TO_PROMPT 0x00
LED Code: Power-up Status: LED Value: