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| author | Yuan Kang <Yuan.Kang@freescale.com> | 2012-06-22 19:48:50 -0500 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2012-06-27 14:42:06 +0800 |
| commit | e24f7c9e87d46fad06bf1097d48f9923acd8e61c (patch) | |
| tree | 15a2f57fd7e43acd51c95779e00f75038ffd8d88 /drivers/crypto/caam/Kconfig | |
| parent | 643b39b031f546c7c3c60ef360b8260aa2b32762 (diff) | |
| download | linux-e24f7c9e87d46fad06bf1097d48f9923acd8e61c.tar.bz2 | |
crypto: caam - hwrng support
caam_read copies random bytes from two buffers into output.
caam rng can fill empty buffer 0xffff bytes at a time,
but the buffer sizes are rounded down to multiple of cacheline size.
Signed-off-by: Yuan Kang <Yuan.Kang@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/caam/Kconfig')
| -rw-r--r-- | drivers/crypto/caam/Kconfig | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/crypto/caam/Kconfig b/drivers/crypto/caam/Kconfig index e61b7f50785e..502a7f3cca5f 100644 --- a/drivers/crypto/caam/Kconfig +++ b/drivers/crypto/caam/Kconfig @@ -82,3 +82,16 @@ config CRYPTO_DEV_FSL_CAAM_AHASH_API To compile this as a module, choose M here: the module will be called caamhash. + +config CRYPTO_DEV_FSL_CAAM_RNG_API + tristate "Register caam device for hwrng API" + depends on CRYPTO_DEV_FSL_CAAM + default y + select CRYPTO_RNG + select HW_RANDOM + help + Selecting this will register the SEC4 hardware rng to + the hw_random API for suppying the kernel entropy pool. + + To compile this as a module, choose M here: the module + will be called caamrng. |