On 7/21/19 5:05 PM, Guenter Roeck wrote:
On 7/21/19 1:30 PM, Valentin Vidić wrote:
Hello,
I'm having trouble getting iTCO_wdt to work on NUC8i5BEH with kernel 4.19.37-5+deb10u1:
[ 9.346099] iTCO_vendor_support: vendor-support=0
[ 9.377211] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11
[ 9.377397] iTCO_wdt iTCO_wdt: can't request region for resource [mem 0x00c5fffc-0x00c5ffff]
[ 9.377407] iTCO_wdt: probe of iTCO_wdt failed with error -16
Is there a way to check if the TCO hardware is missing in this machine
or something else needs to be updated to get it working?
Most likely the memory region is reserved/used by something else. /proc/iomem
might show you.
Here is a possible explanation for your problem.
https://lore.kernel.org/patchwork/patch/770990/
It seems like the memory resource is indeed reserved by the intel_pmc_ipc driver.
Guenter
