Introduction to Linux - A Hands on Guide This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
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Jan 28, · With simple register read and write commands, status information can be read out or configuration changed. Edit: Just realized where I think the confusion came from the address is written in the reference manual as b, which is meant to be interpreted as binary.
Embedded Linux ; ZYBO ethernet MDIO address at the REF Manual. In hardware, I think to use 2 GPIO pins, one connected to MDIO data, other to MDIO clock.
In Software, am interrupt routine would monitor and save the first 15 bits of MDIO frame.
(MDIO bus sniffer) SW will test for frame and PHY address we need. IF true, turn 'data' GPIO direction to output, low level (0) for exactly one bit time. But the linux kenel I am using is which seems not to support mii-tool IOCTLs and rather supports the newer ethtool, but I don't seem to find any ethtool subcommand which can.
phytool read IFACE/ADDR/REG phytool write IFACE/ADDR/REG phytool print IFACE/ADDR[/REG] where ADDR:= C22 | C45 C= C=: REG:= Note: Not all MDIO drivers support the port:device Clause 45 address format. But it should be quite strait forward to write a simple driver that uses a "file" in /proc to export the memory content you would like to see.
Then you can read your "file" with a .Download