phytool

Linux MDIO register access

Usage

phytool read  IFACE/ADDR/REG
phytool write IFACE/ADDR/REG <0-0xffff>
phytool print IFACE/ADDR[/REG]

where

ADDR := C22 | C45
C22  := <0-0x1f>
C45  := <0-0x1f>:<0-0x1f>
REG  := <0-0x1f>

Note: Not all MDIO drivers support the port:device Clause 45 address format.

The read and write commands are simple register level accessors. The print command will pretty-print a register. When using the print command, the register is optional. If left out, the most common registers will be shown.

Examples

~ # phytool read eth4/0/4
0x0de1

~ # phytool print eth0/0
ieee-phy: id:0x01410eb1

   ieee-phy: reg:BMCR(0x00) val:0x1140
      flags:          -reset -loopback +aneg-enable -power-down -isolate -aneg-restart -collision-test
      speed:          1000-full

   ieee-phy: reg:BMSR(0x01) val:0x7949
      capabilities:   -100-b4 +100-f +100-h +10-f +10-h -100-t2-f -100-t2-h
      flags:          +ext-status -aneg-complete -remote-fault +aneg-capable -link -jabber +ext-register

mv6tool

Marvell Link Street register access

Usage

mv6tool read  LOCATION/REG
mv6tool write LOCATION/REG <0-0xffff>
mv6tool print LOCATION[/REG]
mv6tool print IFACE

where

LOCATION := IFACE/<port|phy> | DEV/<ADDR|phyN|portN|globalG|serdes>

DEV  := <0-0x1f>
ADDR := <0-0x1f>
N    := <0-0xa>
G    := <0-2>
REG  := <0-0x1f>

The read and write commands are simple register level accessors. The print command will pretty-print a register. When using the print command, the register is optional. If left out, the most common registers will be shown.

Examples

~ # mv6tool 1/global1/0
mv6: model:mv88e6097 dev:1 global:1
   mv6: reg:00 val:0xc800

~ # mv6tool print eth1-1
mv6: model:mv88e6352 dev:0 port:1
   mv6: reg:PS(0x00) val:0x100f
      flags:          -pause-en -my-pause +phy-detect -link -eee -tx-paused -flow-ctrl
      speed:          10-half
      mode:           0xf

   mv6: reg:PC(0x04) val:0x1414
      flags:          -router-header +igmp-snoop -vlan-tunnel -tag-if-both
      egress-mode:    01, untagged
      frame-mode:     00, normal
      initial-pri:    01, tag prio
      egress-floods:  01, allow UC
      port-state:     00, disabled

Origin & References

phytool is developed and maintained by Tobias Waldekranz.
Please file bug fixes and pull requests at GitHub