RNG_SYSCONFIG_REG
[RNG_SYSCONFIG_REG] = 0x1FE4,
omap_rng_write(priv, RNG_SYSCONFIG_REG, 0x1);
omap_rng_write(priv, RNG_SYSCONFIG_REG, 0x0);
[RNG_SYSCONFIG_REG] = 0x40,