Emerson ATCA-S201 Manuel D’Utilisation

Page de 157
RTM-ATCA-SXXX Overview 
6806800H62B 
ATCA‐S201 Installation and Use Guide 
 
32 
Variable name 
Default value 
Description 
bootfile 
Uimage 
This is the filename name of the Linux kernel image.  
loadaddr 
1000000 
Specifies the starting memory address for storing the 
bootfile  
consoledev 
ttyS1 
Settings for kernel console port. 
bootargs 
root=/dev/ram rw 
ramdisk_size=200000 
console=ttyS1,9600 
Command line passed to the Linux kernel. May contain 
nested references, which will be resolved at runtime. 
Ramdiskaddr 
2000000 
Specifies the starting memory address of the Linux 
ramdisk. 
ramdisksize 
2000000 
Specifies the memory size reserved for the Linux ramdisk. 
initrd_high 
0xfffffff 
Forces ramdisk to load at a high memory address (do not 
modify) 
othbootargs 
 
Used to pass Ethernet MAC and SAS address assignments 
to Linux. 
ramdiskfile 
rootfs.ext2.gz.uboot 
Specifies name of rfs (root file system) image fetched by 
U-boot when booting from the tftp server (serverip).   
eth0addr 
00:11:0D:xx:xx:xx 
MAC address of 1 GbE port on ATCA Zone-2 base-0 
eth1addr 
00:11:0D:xx:xx:xx 
MAC address of 1 GbE port on ATCA Zone-2 base-1 
eth2addr 
00:11:0D:xx:xx:xx 
MAC address of 1 GbE port on ATCA Zone-3 Management 
port 
eth3addr 
00:11:0D:xx:xx:xx 
MAC address of 10 GbE port on ATCA Zone-2 fabric-0 
eth4addr 
00:11:0D:xx:xx:xx 
MAC address of 10 GbE port on ATCA Zone-2 fabric-1 
sasaddr 
50:00:00:11:OD:xx:xx:xx
WWN address of SAS controller, port0. Port 1 is WWN+1, 
Port2 is WWN+2 and so on. 
ipaddr 
0.0.0.0 
Dotted decimal IP address applied to active Ethernet 
management port (ethact) 
gatewayip 
0.0.0.0 
Dotted decimal Default network gateway 
netmask 
0.0.0.0 
Dotted decimal network mask 
stdin 
serial 
Specifies RS232 console port for input messages 
stdout 
serial 
Specifies RS232 console port for output messages 
stderr 
serial 
Specifies RS232 console port for error messages 
serverip 
0.0.0.0 
Dotted decimal IP address of TFTP server 
ethact 
At boot, ethprime is 
copied to ethact. 
Ethact identifies which Ethernet resource is associated 
with U-boot services.  Permissible values: 
eTSEC0= Zone2 connector, Base0 Ethernet (1Gbps) 
eTSEC1= Zone2 connector, Base1 Ethernet (1Gbps) 
eTSEC2= Zone3 connector, Management port (1Gbps) 
Note: ethact may be dynamically changed at the U-boot 
console, but it is not a persistent variable, and will be 
reloaded at next boot. 
netdev 
eth2 
RESERVED for future use   
ethprime 
eTSEC2 
At boot, ethprime is copied to ethact.  Refer to ethact for a 
list of permissible values. 
3.6.4  Manually assign management IP addresses 
Administrators may individually modify any of the listed U-boot environment 
variables.  Note these changes are not permanently recorded in the non-volatile 
flash unless saved using saveenv.  Extreme care should be taken to ensure new 
values are valid entries.