cpufreq not working on AMD

[Ivan Voras]

Loading cpufreq.ko results in these messages:

powernow0: <Cool`n'Quiet K8> on cpu0
device_attach: powernow0 attach returned 6
powernow0: <Cool`n'Quiet K8> on cpu0
device_attach: powernow0 attach returned 6

I've googled for it - there are many similar problems but no solution.

This is:

CPU: AMD Athlon(tm) 64 Processor 3000+ (1795.32-MHz 686-class CPU)
  Origin = "AuthenticAMD"  Id = 0x20ff0  Stepping = 0

Features=0x78bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2>
  Features2=0x1<SSE3>
  AMD Features=0xe2500800<SYSCALL,NX,MMX+,FFXSR,LM,3DNow+,3DNow>
  AMD Features2=0x1<LAHF>

in i386 mode, and setting cpu frequency works in Windows.