U45/V245 device updates

[Julian Coleman <jdc%coris.org.uk@localhost>]

Hi,

I've committed my remaining changes for the U45, so that we now have
envstat output for more sensors and sysctl to control a few things.
Compared to Solaris, we now have all the sensors apart from the front
panel (ambient) temperature.  I can't see which i2c device reports
this.

On the V245, I've added support for some of the sensors, but we're still
missing others that the ALOM shows.  It looks like there is a proprietry
sensor chip at i2c address 0x5a which probably reports fan speeds (and
does control the front lights via GPIO) and also pcf8574's at 0x3e and
0x3f, which I think are indicators for the PSU's.

If anyone tries out a -current kernel on a U45/U25 or V245/V215, I'd be
interested in dmesg and envstat output.

Regards,

Julian

PS.  Current output is:

u45# envstat
                    Current  CritMax  WarnMax  WarnMin  CritMin  Unit
[adt7462sm0]
        cpu0-fan:      7049                         88            RPM
        cpu1-fan:     11134                         88            RPM
         pci-fan:      3349                         88            RPM
     system-fan3:      3298                         88            RPM
     system-fan4:      3356                         88            RPM
  adt7462-sensor:    49.250   80.000   75.000    0.000           degC
     cpu0-sensor:    55.500   95.000   70.000   50.000           degC
     cpu1-sensor:    77.250   95.000   70.000   50.000           degC
       mb-sensor:    46.750   70.000   65.000    0.000           degC
     cpu0-V-core:     1.490             1.989                       V
     cpu1-V-core:     1.498             1.989                       V
          V3.3 1:     1.238             4.386                       V
          V3.3 2:     1.232             3.978                       V
           V12 3:    11.938            15.938                       V
            V5 1:     5.018             6.630                       V
       fan fault:         0        0        0        0        0 none
[lm95221ts0]
  lm95221-sensor:    37.000                                      degC
     fire-sensor:    57.125                                      degC
  lsi1064-sensor:    65.125                                      degC
[nxp75a0]
      psu-sensor:    37.375   80.000                             degC

u45# sysctl hw.bq4802rtc0 hw.adt7462sm0 hw.led
hw.bq4802rtc0.stop_oscillator = 0
hw.adt7462sm0.pwm1.channel = remote1_dynamic
hw.adt7462sm0.pwm2.channel = remote2_dynamic
hw.adt7462sm0.pwm3.channel = remote3
hw.adt7462sm0.pwm4.duty_cycle = 14
hw.adt7462sm0.pwm4.channel = manual
hw.adt7462sm0.remote1.tmin = 27
hw.adt7462sm0.remote1.trange = 32
hw.adt7462sm0.remote1.oppoint = 60
hw.adt7462sm0.remote2.tmin = 22
hw.adt7462sm0.remote2.trange = 32
hw.adt7462sm0.remote2.oppoint = 60
hw.adt7462sm0.remote3.tmin = 40
hw.adt7462sm0.remote3.trange = 32
hw.led.power = 1
hw.led.fault = 0

v245# envstat
                      Current  CritMax  WarnMax  WarnMin  CritMin  Unit
[adt7462sm0]
             fan 4:         0                         82            RPM
             fan 6:         0                         82            RPM
             fan 7:         0                         82            RPM
             local:    45.750   85.000   65.000    0.000           degC
          remote 1:    45.250   71.000   61.000    0.000           degC
          MB.T_AMB:    46.250   71.000   61.000    0.000           degC
         MB.T_FIRE:    49.500  100.000   95.000    0.000           degC
      MB.P0.V_CORE:     1.443             1.989                       V
      MB.P1.V_CORE:     1.459             1.989                       V
     MB.BAT.V_+3V3:     3.285             4.386                       V
      MB.BAT.V_BAT:     3.167             3.978    1.997              V
         MB.V_+12V:    12.000            15.938                       V
         fan fault:         0        0        0        0        0 none
[dbcool0]
            l_temp:    35.500                                      degC
         PDB.T_PS0:    33.000                                      degC
         PDB.T_PS1:    32.500                                      degC
              Vccp:       N/A
               Vcc:     3.339                                         V
  PDB.HDDFB.FT6.F0:     21513                                       RPM
  PDB.HDDFB.FT6.F1:     22040                                       RPM
              fan3:       N/A
              fan4:       N/A
[lm95221ts0]
             local:    47.500                                      degC
       MB.T_REMOTE:    42.875                                      degC
         MB.T_1064:    74.375                                      degC
[pcagpio1]
     HDD 3 present:      TRUE
     HDD 2 present:      TRUE
     HDD 1 present:      TRUE
     HDD 0 present:      TRUE

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