[solved] Meraki MR52 eth0 not working, no phy

[e97]

Recently flashed MR52 to 22.03.3 but eth0 is not working. PoE on eth0 works for power.
Using eth1 for lan connectivity, after moving both interfaces to br-lan

and Wi-Fi connection is not as stable as it was on MR33. [forgot to disable DHCP on access point, wi-fi is now stable]

Dont believe its a hardware issue, because during the tftp of the
openwrt-ipq806x-generic-meraki_mr52-initramfs-fit-uImage.itb image
, uboot shows port2:10Mbps and port3: 1000Mbps

Both LEDs are lit on the PoE / eth0 NIC without a cable plugged in, seems like incorrect device tree or something?

Here's the log:

[ 2797.074003] br-lan: port 1(eth0) entered disabled state
[ 2797.122621] device eth1 left promiscuous mode
[ 2797.356527] ipq806x-gmac-dwmac 37400000.ethernet eth0: no phy at addr -1
[ 2797.356576] ipq806x-gmac-dwmac 37400000.ethernet eth0: stmmac_open: Cannot attach to PHY (error: -19)
[ 2797.363670] br-lan: port 1(eth0) entered blocking state
[ 2797.371445] br-lan: port 1(eth0) entered disabled state
[ 2797.377096] device eth0 entered promiscuous mode

How to get eth0 working?

[lleachii]

@e97

PoE on eth0 works for power.

@e97

Both LEDs are lit on the PoE / eth0 NIC without a cable plugged in

To be clear, you have eth0 plugged in and are using it for LAN, correct?

If not, does it work when eth0 is used?

[e97]

Currently using eth1 for lan connection

eth0 cannot establish lan connection.

[frollic]

are you sure eth0 hasn't been configured as wan, by openwrt ?

[Borromini]

Should be the other way around according to git:

 meraki,mr52)
         ucidef_set_interfaces_lan_wan "eth0" "eth1"

[e97]

Using as an access point per the instructions from https://openwrt.org/docs/guide-user/network/wifi/dumbap

Moved eth0 and eth1 to br-lan, deleted wan and wan6 interfaces

config device
	option name 'br-lan'
	option type 'bridge'
	list ports 'eth0'
	list ports 'eth1'

config interface 'lan'
	option device 'br-lan'
	option proto 'static'
	option ipaddr '192.168.1.10'
	option netmask '255.255.255.0'
	option ip6assign '60'
	option gateway '192.168.1.1'
	list dns '192.168.1.1'

side note: forgot to disable dhcp on the access point, after doing so the Wi-Fi connection is stable

[e97]

Sanity checked with a cable directly to each port using original firmware.. no connection on eth0 (no lights), established on eth1. Chalking this up as a hardware issue.