PCMCIA voltages.

Oleg Gusev oleg@usm.uni-muenchen.de
Mon May 10 16:35:20 CEST 2004

 The sample sa1101 code at Intels site says that the pass1 and pass2 
  chips have a bug, and the newer one do not have it.
  Anyway, if we assume that j820 uses the chips without bugs,
  then 3.3V setup is ok, the 5V settings should be changed and
  12V vpp added:

  switch (conf->vcc)
    case  0: break;
    case 33: mask1 |= vcc0; break;
    case 50: mask1 |= vcc1; break;
            printk(KERN_ERR "sa1101_pcmcia: unrecognised VCC %u\n",conf->vcc);
            return -1;

  switch (conf->vpp)
    case   0: break;
    case  33: mask1 |= (vpp0 | vpp1); break;
    case  50: mask1 |= vpp1; break;
    case 120: mask1 |= vpp0; break;
            printk(KERN_ERR "sa1101_pcmcia: unrecognised VPP %u\n",conf->vpp);
            return -1;

The problem with this setup is that now my 5V cards are not working! 


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