PHN_CONTROL
if (r.reg == PHN_CONTROL && (r.value & PHN_CTL_IRQ) &&
if (r.reg == PHN_CONTROL && (dev->status & PHB_NOT_OH)) {
if (r.reg == PHN_CONTROL && !(r.value & PHN_CTL_IRQ))
ctl = ioread32(dev->iaddr + PHN_CONTROL);
iowrite32(dev->ctl_reg, dev->iaddr + PHN_CONTROL);
iowrite32(PHN_CTL_IRQ, dev->iaddr + PHN_CONTROL);