Functional Description
ATCA-8310 Installation and Use (6806800M72D
)
74
4.2.1.2.2 Boot Bank Selection and Reprogramming
By default, the payload processor boots from Boot Flash device #1. An IPMI OEM command can
be used to send a message to the IPMC to change the boot device. The IPMC provides an IPMI
sensor to control the signal BOOT_SELECT. Write protection is implemented through the
FPGA.
The update mechanism is described in the software specification. The principal is to store the
information which device was used to boot from and keep that device protected. The
redundant device can then be upgraded as needed.
In case of an IPMC firmware upgrade, the BOOT_SELECT signal stays unchanged. Besides
others, this signal is latched by a latch buffer to ensure that its state doesn't change when the
IPMC resets hard.
Figure 4-3
Boot Flash Switching
Glue
FPGA
SPI
Flash
#1
SPIInterface
ACS
8520
P4080
CS0/1#
CS1#
SPI
Flash
#2
Boot1_CS0/1#
Boot2_CS1/0#
IPMC_BOOTSEL#
Manual_BOOTSEL#
IPMC
BOOT_SELECT#
WP
WP
P4080RESET
Summary of Contents for ATCA-8310
Page 12: ...ATCA 8310 Installation and Use 6806800M72D Contents 12 Contents Contents ...
Page 26: ...ATCA 8310 Installation and Use 6806800M72D 26 List of Figures ...
Page 34: ...ATCA 8310 Installation and Use 6806800M72D About this Manual 34 About this Manual ...
Page 54: ...Hardware Preparation and Installation ATCA 8310 Installation and Use 6806800M72D 54 ...
Page 70: ...Controls Indicators and Connectors ATCA 8310 Installation and Use 6806800M72D 70 ...
Page 162: ...BIOS ATCA 8310 Installation and Use 6806800M72D 162 ...
Page 200: ...U Boot ATCA 8310 Installation and Use 6806800M72D 200 ...
Page 244: ...Intelligent Peripheral Management Controller ATCA 8310 Installation and Use 6806800M72D 244 ...
Page 438: ...CPLD and FPGA ATCA 8310 Installation and Use 6806800M72D 438 ...
Page 442: ...Replacing the Battery ATCA 8310 Installation and Use 6806800M72D 442 ...
Page 444: ...Related Documentation ATCA 8310 Installation and Use 6806800M72D 444 ...
Page 454: ...ATCA 8310 Installation and Use 6806800M72D Sicherheitshinweise 454 ...
Page 456: ...Index ATCA 8310 Installation and Use 6806800M72D 456 ...
Page 457: ...Index ATCA 8310 Installation and Use 6806800M72D 457 ...
Page 458: ...Index ATCA 8310 Installation and Use 6806800M72D 458 ...
Page 459: ......