RDB port
QDS port
U-Boot interface
PCI function
Comments
1G MAC1
• Top port with
SGMII
add-on card in slot
1
• Single port of
SXGMII add-on
card in slot 1
enetc#0
0000:00:00.0
N/A
On-board port
enetc#1
0000:00:00.1
enetc#1
is presented in
U-Boot on all boards.
RGMII is only populated
on QDS though,
therefore, this interface
is not functional on
RDB.
Internal
Internal
enetc#2
0000:00:00.2
Connected internally
(MAC to MAC) to the
Ethernet switch.
This interface can be
used to access remote
hosts connected to
switch ports.
Internal
Internal
enetc#3
0000:00:00.6
Connected internally
(MAC to MAC) to the
Ethernet switch. This
interface is present if bit
851 is set in RCW.
1G SWP0 to
1G SWP3
4 ports on QS(X)GMII
add-on card in slot 2.
Note that SWP0 is top
port on
QSGMII add-on
card and bottom port on
QSXGMII add-on card.
N/A
0000:00:00.5
As of BSP0.3 switch
ports can be used in U-
Boot both to access
remote hosts (through
enetc#2
) and to switch
between external ports.
Interface naming in Linux
The following figure shows how Ethernet ports are presented in Linux.
Device Drivers
Layerscape LS1028A BSP User Guide, Rev. 0.3, 04/2019
NXP Semiconductors
89
Summary of Contents for Layerscape LS1028A BSP
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