diff options
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/caam/ctrl.c | 4 | ||||
| -rw-r--r-- | drivers/crypto/caam/regs.h | 1 |
2 files changed, 3 insertions, 2 deletions
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c index 3cade79ea41e..8908d040b1f2 100644 --- a/drivers/crypto/caam/ctrl.c +++ b/drivers/crypto/caam/ctrl.c @@ -355,8 +355,8 @@ static void kick_trng(struct platform_device *pdev, int ent_delay) wr_reg32(&r4tst->rtsdctl, val); /* min. freq. count, equal to 1/4 of the entropy sample length */ wr_reg32(&r4tst->rtfrqmin, ent_delay >> 2); - /* max. freq. count, equal to 8 times the entropy sample length */ - wr_reg32(&r4tst->rtfrqmax, ent_delay << 3); + /* disable maximum frequency count */ + wr_reg32(&r4tst->rtfrqmax, RTFRQMAX_DISABLE); /* put RNG4 into run mode */ clrbits32(&r4tst->rtmctl, RTMCTL_PRGM); } diff --git a/drivers/crypto/caam/regs.h b/drivers/crypto/caam/regs.h index f48e344ffc39..b8bd980ac00a 100644 --- a/drivers/crypto/caam/regs.h +++ b/drivers/crypto/caam/regs.h @@ -286,6 +286,7 @@ struct rng4tst { u32 rttotsam; /* PRGM=0: total samples register */ }; u32 rtfrqmin; /* frequency count min. limit register */ +#define RTFRQMAX_DISABLE (1 << 20) union { u32 rtfrqmax; /* PRGM=1: freq. count max. limit register */ u32 rtfrqcnt; /* PRGM=0: freq. count register */ |