Kontron AM4211 - Manual (Page 60)

45 AM4211
www.kontron.com
5.3.6 Network interfaces
The following table represents the logical u-boot network interfaces related to their physical Cavium
connection (QLM):
Table 5-12:Bootloader network interfaces
U-Boot automatically sets the variable ethact to the name of the Ethernet interface that is currently active
(default: octmgmt0). This variable can be changed on host to force U-Boot to use a different network
interface.
5.3.7 Bootloader Update
To update the bootloader, the new U-boot binary is transferred to the board using TFTP. After that, this
binary is written into the onboard flash. The internal controller is used for network connection.
Prerequisites: a working TFTP server, DHCP server and network connectivity to the DHCP and TFTP server. The
new bootloader image has to be stored on the TFTP server. No jumper settings are required on the AM4211.
There is one possible way to update the bootloader image and it’s by using the predefined update scripts from
the bootloader CLI. It is recommended to always update firmware of the active image. In case of a failure, it is
possible to restore the board using the still unchanged redundant image. After the updated firmware is
running properly, the redundant image can be updated to the same version, only if it is required.
The following procedure defines the update of the image 0 bootloader:
•Start system and connect to serial console
•Connect to bootloader shell by entering the bootloader bootstop phrase ‘stop’
U-Boot 2011.03-KCI-0.42 (Development build, svnversion: u-boot:exported, exec:) (Build time:
Mar 12 2012 - 13:56:25)
Skipping PCIe port 0 BIST, in EP mode, can't tell if clocked.
Skipping PCIe port 1 BIST, reset not done. (port not configured)
BIST check passed.
DFM interface initialized 512 MB
KONTRON_T5519 FPGA version: 14 Revision: 3
Reset Type: 01 cold reset, Source: 08 Software Initiated
KONTRON_T5519 board revision major:3, minor:0
AMC Port Cavium physical interfaces (QLM) u-boot logical name(s)
0 RGMII 0 octmgmt0
1 RGMII1 octmgmt1
8 to 11 QLM1 / XAUI octeth1
8 QLM1 / SGMII Lane 0 octeth1
9 QLM1 / SGMII Lane 1 octeth2
10 QLM1 / SGMII Lane 2 octeth3
11 QLM1 / SGMII Lane 3 octeth4
Front SFP QLM2 / 1000Base-X octeth0
Front SFP+ QLM2 / 10GbE octeth0