João Oliveira last edited by João Oliveira
I have been working on a project where we are using the Omega2+ with the power and ethernet addons.
Since this board is to be added to a Yocto based project, I can't use the mainline or Onion OpenWRT builds so I've been trying to create a meta to support the Omega2+. To do that, I extracted the Linux 4.14.43 kernel source and device tree from the latest OpenWRT.
I have successfully built an kernel, initramfs and rootfs and booted them using the web updater from the UBoot and a sd-card. The kernel configuration was extracted from the OpenWRT and modified to my requirements (mainly, systemd, ext2/4 filesystem support and removed wireless stuff). The defconfig can be found here.
The problem is with the ethernet port. I can't make it work, I always get the following messages:
[ 6186.097454] mtk_soc_eth 10100000.ethernet eth0: transmit timed out [ 6186.103746] mtk_soc_eth 10100000.ethernet eth0: dma_cfg:00000057 [ 6186.109874] mtk_soc_eth 10100000.ethernet eth0: tx_ring=0, base=07f8c000, max=1024, ctx=3, dtx=0, fdx=0, next=3 [ 6186.120125] mtk_soc_eth 10100000.ethernet eth0: rx_ring=0, base=07220000, max=1024, calc=1023, drx=0
I saw some reports of this issue in the web (here) but without a clear resolution.
I confirmed the internal switch configuration with swconfig and I see no differences to the mainline or Onion OpenWRT builds.
Strange enough, I can see RX packets arriving to the board correctly (with tcpdump and by pinging) but no TX packets are leaving. ifconfig reports an high packet error:
eth0 Link encap:Ethernet HWaddr 40:A3:6B:C1:AD:1D inet addr:192.168.8.8 Bcast:0.0.0.0 Mask:255.255.255.0 inet6 addr: fe80::42a3:6bff:fec1:ad1d%2012397072/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:36 errors:0 dropped:0 overruns:0 frame:0 TX packets:59 errors:34 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:6948 (6.7 KiB) TX bytes:10836 (10.5 KiB) Interrupt:5
I'm using systemd-networkd to configure the interface:
[Match] Name=eth0 [Network] DHCP=ipv4 [DHCP] UseDomains=true [Link] MACAddress=40:a3:6b:c1:ad:1d
Can someone help me out?
João Oliveira last edited by
For anyone with this problem, the switch must be configured before bringing up eth0.
These commands are needed for everything to work:
swconfig dev switch0 set reset 1 swconfig dev switch0 set enable_vlan 0 swconfig dev switch0 set apply 1