Artesyn COMX-P40x0 ENP2, Manual

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BSP
COMX-P40x0 ENP2 Installation and Use (6806800R95B )
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7.20 Network
COMX-P40x0 has two frame managers. Each one supports five native network interfaces
broken down into four 1 GB Ethernet interfaces (DTSEC) and one 10 GB Ethernet interface
(TGEC). Due to limitations in the CPU and frame manager, only 12 Gbps is supported. This does
not allow the DTSEC and one XAUI to work the line speed at the same time at they total 14
Gbps.
Because of these limitations, the COMX-P40x0-ENP2 powers down the XAUI interface for RCW
options #5 and #6. The total line speed must not exceed 12Gbps for these configurations.
COMX-P40x0 has the following combinations of network ports in the frame managers:

1 RGMII (FM1) + XAUI (FM2) RCW options: 1-4, 9, 11-12

1 RGMII (FM1) + 4 SGMII (FM2) RCW options: 5-6

1 RGMII (FM1) only (+ SRIO configuration) RCW options 7-8
PCIE-based network ports like the Intel PRO/1000 are not limited by the above mentioned rules
because their packets are handled not by the frame managers but by the CPU. COMX-P40x0
powers down the Bank 3 SerDes (FM1 lanes).
EC1 of pin multiplexing configuration in the RCW routes the RGMII port (FM1@DTSEC1) to the
EC1 parallel mode pins. The RGMII port is always present in all of the twelve SerDes/RCW
options.
Table 7-9 Network Ports Naming Rules in U-Boot
FM1 Network Ports
Port 0 (the RGMII port) is named as FM1@DTSEC1
FM2 Network Ports
Port 0 is named as FM2@DTSEC1
Port 1 is named as FM2@DTSEC2
Port 2 is named as FM2@DTSEC3
Port 3 is named as FM2@DTSEC4
Port 4 (XAUI) is named as FM2@TGEC1