Update:

I endup re-installing NV65, 

SunOS porsche 5.11 snv_65 i86pc i386 i86pc Solaris
amd64 i386

Installed frkit and powernow works again and then get some info about the 
devices:

crw------- 1 root sys 181, 0 Aug 15 10:18 /devices/pseudo/power at 
0:power_button
crw-rw-rw- 1 root sys 220, 0 Aug 15  2007 /devices/pseudo/powernow at 0:powernow

/devices/pseudo/power at 0:
total 0

/devices/pseudo/powernow at 0:
total 0

checked for any possible files with the keyword powernow in /etc:

/etc/minor_perm:powernow:* 0666 root sys
/etc/name_to_major:powernow 220

check modinfo (will need to be compare against nv 70 later)

next step bfu + acr + reboot to nv 70 and reboot
once back in bv 70: frkit update all:

compared modinfo 70 against 65:

in n65 (PowerNOW!/SpeedStep 1.44 (ACPIC)  
which make sense since the devices exist

in n70 I do see this one:
 (cpu nexus driver v1.0)
could this be the problem?

manually creating the powernow device didn't help either:
crw-rw-rw- 1 root root 220, 0 Aug 15 10:51 /dev/powernow

powernowadm 
/dev/powernow: No such device or address

modinfo | grep -i power
120 fffffffff7e60000   2e00 220   1  powernow (PowerNOW!/SpeedStep 1.44 (ACPIC)
162 fffffffff7f9e000   4d38 131   1  pm (power management driver v1.117)
164 fffffffff80c8000   17a0 181   1  power (power button driver v1.22)

tried this
./frkit uninstall powernow

./frkit install powernow
Warning: Driver (powernow) successfully added to system but failed to attach

reboot, still nothing


uname -a
SunOS porsche 5.11 opensol-b70 i86pc i386 i86pc Solaris

any suggestion?

Thanks
 
 
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