Access Ethernet PHY in U-Boot

Keldy

Expert 1835 points

Hi,

i'm using AM335x MPU,

can i access my ethernet PHY in U-boot ?

where the "mii" comand U-boot ?

Thanks in advance

Keldy

0 Mugunthan V N over 13 years ago

Keldy

You can access phy registers with mii command in u-boot.

with regards

Mugunthan V N

0 Keldy over 13 years ago in reply to Mugunthan V N

Expert 1835 points

hi,

Thanks for reply,

i want to enable the ethernet in u-boot level.

how to write a code to enable ethernet using rgmii0 interface with micrel ksz9021 PHY ?

Thanks & Regards

Keldy

0 Keldy over 13 years ago in reply to Keldy

Expert 1835 points

Hi,

now i can read and write register of Micrel Ethernet PHY in u-boot. But still cant use ethernet.

read and write process for register of PHY is consider using RGMII interface? or just using the MDIO and MDC lines?

Thanks & Regards

Keldy

0 Cyril BEGUET over 13 years ago in reply to Keldy

Hi,

acces to PHY registers are made only by using MDC MDIO lines.

RGMII lines are used for Ethernet trafic.

Regards

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