Opened 5 years ago

Last modified 5 years ago

#12993 new defect

atheros wisoc AR231x/AR5312 watchdog missing

Reported by: bittorf@… Owned by: developers
Priority: normal Milestone: Chaos Calmer 15.05
Component: base system Version: Trunk
Keywords: atheros watchdog Cc:


although watchdog seems activated in kernel-config

Device Drivers --->
Watchdog Timer Support --->
[*] Atheros wisoc Watchdog Timer

results in

there is no '/dev/watchdog' created and therefore
/sbin/watchdog not running.

Attachments (0)

Change History (7)

comment:1 Changed 5 years ago by bittorf@…

enforcing a valid '/dev/watchdog' via

mknod /dev/watchdog c 10 130

lets the startup-script not fail anymore, but /sbin/watchdog
will not start anyway, so the error must be deeper. no entries
in dmesg about failing somehow.

comment:2 Changed 5 years ago by bittorf@…

i checked different openwrt-revision and different atheros-wisoc-hardware:

at least these versions are affected:

r32060 ... r35300

comment:3 Changed 5 years ago by anonymous

last change was done in r31626 to the watchdog-patch regarding:

git log -- target/linux/atheros/patches-3.3/130-watchdog.patch

comment:4 Changed 5 years ago by bittorf@…

found in my hardware-zoo an atheros device with running watchdog on r32060: "Ubiquiti Picostation2". digging deeper with some printk's...

comment:5 Changed 5 years ago by bittorf@…

found another hardware with running watchdog, so we have:

r35300 on Nanostation2 - OK
r32060 on Picostation2 - OK
r35300 on Bullet5 - ERROR
r32060 on PicoStation5 - ERROR

so, only 5 GHz-hardware seems affected (or never worked)

comment:6 Changed 5 years ago by bittorf@…

seem that r12309 adds watchdog support for ar5315 - anyone where is it running on 5GHz routers?

comment:7 Changed 5 years ago by Jonathan Bither <jonbither@…>

I have a handful of various original atheros devices laying around that I'll try to get updated and test. I haven't had the best luck getting notifications here but i'll try to remember to update.

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