switch
swp3
swp0 swp1 swp2
swp4 swp5
eno2 eno3
eno0 eno1
SGMII
x
QSGMII
RGMII
Figure 5. Linux network interfaces on RDB
RDB port
QDS port
Linux netdev
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
eno0
0000:00:00.0
N/A
On-board port
eno1
0000:00:00.1
RGMII interface is not
present on RDB board
and the associated
ENETC interface is
disabled in device tree:
&enetc_port1 {
status = "disabled";
};
On QDS this requires
an RCW that explicitly
enables RGMII (bits
833-838 and bits
860-861 must be reset)
Internal
Internal
eno2
0000:00:00.2
Connected internally
(MAC to MAC) to
swp4. This is used to
carry traffic between
the switch and software
running on Arm cores.
Table continues on the next page...
Linux kernel
Layerscape LS1028A BSP User Guide, Rev. 0.3, 04/2019
90
NXP Semiconductors
Summary of Contents for Layerscape LS1028A BSP
Page 135: ......
