RNG_CR_RNGEN
reg |= RNG_CR_RNGEN;
reg |= RNG_CR_RNGEN;
reg &= ~RNG_CR_RNGEN;
priv->pm_conf.cr = readl_relaxed(priv->base + RNG_CR) & ~RNG_CR_RNGEN;
reg |= RNG_CR_RNGEN;
reg |= RNG_CR_RNGEN;
reg |= RNG_CR_RNGEN;