diff options
Diffstat (limited to 'drivers/char/hw_random')
| -rw-r--r-- | drivers/char/hw_random/omap-rng.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c index d2866280f130..b1ad12552b56 100644 --- a/drivers/char/hw_random/omap-rng.c +++ b/drivers/char/hw_random/omap-rng.c @@ -408,7 +408,18 @@ static int of_get_omap_rng_device_details(struct omap_rng_dev *priv, "err = %d\n", err); } - omap_rng_write(priv, RNG_INTMASK_REG, RNG_SHUTDOWN_OFLO_MASK); + /* + * On OMAP4, enabling the shutdown_oflo interrupt is + * done in the interrupt mask register. There is no + * such register on EIP76, and it's enabled by the + * same bit in the control register + */ + if (priv->pdata->regs[RNG_INTMASK_REG]) + omap_rng_write(priv, RNG_INTMASK_REG, + RNG_SHUTDOWN_OFLO_MASK); + else + omap_rng_write(priv, RNG_CONTROL_REG, + RNG_SHUTDOWN_OFLO_MASK); } return 0; } |