Kontron AM4140 U-Boot Bootloader Uživatelský manuál stáhnout pdf (Strana 35)

AM4140 U-Boot Bootloader U-Boot Usage

ID 1052-0281, Rev. 1.0 Page 35

P R E L I M I N A R Y

6.2.1 Overview of Board Configuration Options

The FCLKA option provides the following parameters:

• auto: The Module Management Controller configures the PCI Express reference

clock (FCLKA) via E-Keying

• in: AM4140 uses the PCI Express reference clock from the AMC Card-edge con-

nector (FCLKA)

• out: AM4140 uses the local PCI Express reference clock and generates the PCI Ex-

press reference clock to the AMC Card-edge connector (FCLKA)

• local: AM4140 uses the local PCI Express reference clock and the AMC clock

(FCLKA) is disabled

Table 3: Overview of Board Configuration Options

AMC PORT CONFIGURATION USING THE

U-BOOT “sconf info” BASE CONFIGURATIONS

FURTHER BOARD CONFIGURATION

OPTIONS DEPENDING ON THE BASE

CONFIGURATION

U-Boot

“sconf”

Base Conf.

Port 0 Port 1 Ports 4-7 Ports 8-11

GBE

PORT 1

SRIO

SYSTEM

SIZE

SRIO

MODE

FCLKA

PCIe

Ref. Clock

0 GbE GbE [email protected] [email protected] -- small/

large

host/

agent

1 GbE GbE S[email protected] GbE 4x1 -- small/

large

host/

agent

2 GbE GbE S[email protected] PCIe -- small/

large

host/

agent

3 GbE [GbE] [email protected] [email protected] front/

rear

small/

large

host/

agent

4 GbE [GbE] [email protected] XAUI front/

rear

small/

large

host/

agent

5 GbE [GbE] [email protected] PCIe front/

rear

small/

large

host/

agent

auto/in/

out/local

6 GbE [GbE] PCIe PCIe front/

rear

-- -- auto/in/

out/local

7 GbE [GbE] PCIe XAUI front/

rear

-- -- auto/in/

out/local

Note ...

[GbE] indicates that the DTSEC1 used can be redirected to the front panel

connector J2(GbE B). This may be required for board configurations which

otherwise do not provide front Ethernet connectivity.

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