NXP Semiconductors Layerscape LS1028A BSP - 4.2.12 Networking

Set nfsboot
run nfsargs;tftp $loadaddr $bootfile;tftp $fdtaddr $fdtfile;bootm $loadaddr - $fdtaddr
run nfsboot
wdt_period is a watchdog timeout period. Set this parameter with the proper value depending on your board
bus frequency.
NOTE
wdt_period is inversely proportional to watchdog expiry time ie. the higher the wdt_period, the lower the watchdog expiry
time. So if wdt_period is increased to high, watchdog will expiry early.
When using watchdog as wake-up source with the default Ubuntu root filesystem, add watchdog-device
= /dev/watchdog to /etc/watchdog.conf
NOTE
4.2.12 Networking
4.2.12.1 Interface naming
Following section documents the association between physical interfaces and networking interfaces as presented by software.
Interface naming in U-Boot
The following figure shows the Ethernet ports as presented in U-Boot. Note that not all ports are available.
switch
swp3
swp0
swp1
swp2
swp4
swp5
enetc#2 enetc#3
enetc#0
enetc#1
SGMII
x
QSGMII
RGMII
Figure 4. U-boot network interfaces on RDB
Linux kernel
Layerscape LS1028A BSP User Guide, Rev. 0.3, 04/2019
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NXP Semiconductors