Florian Fainelli wrote:
Did you confirm that it does not respond with its
correct PHY ID1&ID3 values?
This is the output I get for the PHY IDs on the mdio bus when the PHYs
are in power down state (this is the default state in which the device
comes up):
root@OpenWrt:/sys/devices/platform/ag71xx-mdio.0# for phy in
ag71xx-mdio.0\:*; do echo -n "${phy}: "; cat ${phy}/phy_id; done
ag71xx-mdio.0:10: 0x00000760
ag71xx-mdio.0:11: 0x00000000
ag71xx-mdio.0:12: 0x12800000
ag71xx-mdio.0:13: 0x00000000
ag71xx-mdio.0:14: 0x00000000
ag71xx-mdio.0:15: 0x00000000
ag71xx-mdio.0:16: 0x00000000
ag71xx-mdio.0:17: 0x00000000
ag71xx-mdio.0:18: 0x00000760
This results in: ag71xx.0: no PHY found with phy_mask=00000001
And this is the output for powered up PHYs (powered up in the bootloader
by interrupting automatic booting):
root@OpenWrt:/sys/devices/platform/ag71xx-mdio.0# for phy in
ag71xx-mdio.0\:*; do echo -n "${phy}: "; cat ${phy}/phy_id; done
ag71xx-mdio.0:00: 0x004dd033
ag71xx-mdio.0:01: 0x004dd033
ag71xx-mdio.0:02: 0x004dd033
ag71xx-mdio.0:03: 0x004dd033
ag71xx-mdio.0:04: 0x004dd033
ag71xx-mdio.0:10: 0x00000000
ag71xx-mdio.0:11: 0x10411084
ag71xx-mdio.0:12: 0x00000000
ag71xx-mdio.0:13: 0x7fff7fff
ag71xx-mdio.0:14: 0x7fff7fff
ag71xx-mdio.0:15: 0x7fff7fff
ag71xx-mdio.0:16: 0x00c20000
ag71xx-mdio.0:17: 0x004a003a
ag71xx-mdio.0:18: 0x00000000
This results in: ag71xx.0: connected to PHY at ag71xx-mdio.0:00
[uid=004dd033, driver=Atheros AR8216/AR8236/AR8316]
Is this a real PHY or is this a specific
port from a switch?
These are the 5 Ports of the AR8327N switch which is connected to GMAC0
of the AR9344 in RGMII mode.
Obviously the PHYs cannot be found when in powered down state. This is
the reason why the probing of the switch fails. All the mdio bus scan
sees is PHY ID garbage because the relevant PHYs aren't responding.
This is why I'm trying to perform a PHY reset / auto negotiation start
even before having the mdiobus_register function perform the mdio bus scan.
You can find the files/patches I use for this board here:
http://heffer.fedorapeople.org/openwrt/mynet-n750/
Thanks for your help so far!
Regards,
Felix
_______________________________________________
openwrt-devel mailing list
[email protected]
https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
