diff options
| author | Przemyslaw Marczak <p.marczak@samsung.com> | 2014-03-25 10:58:21 +0100 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-03-28 15:06:31 -0400 |
| commit | 0bd937248a7a69f531e19eac28d164fce0c60855 (patch) | |
| tree | 08331c56a9c43dfd268c19392ca9a19d3f35db9b /drivers/crypto/ace_sha.h | |
| parent | 680d8f03ea558f5d75f0506d8ca24db99508e4b2 (diff) | |
drivers: crypto: ace_sha: add implementation of hardware based lib rand
This patch adds implementation of rand library based on hardware random
number generator of security subsystem in Exynos SOC.
This library includes:
- srand() - used for seed hardware block
- rand() - returns random number
- rand_r() - the same as above with given seed
which depends on CONFIG_EXYNOS_ACE_SHA and CONFIG_LIB_HW_RAND.
Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
cc: Akshay Saraswat <akshay.s@samsung.com>
cc: ARUN MANKUZHI <arun.m@samsung.com>
cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Michael Walle <michael@walle.cc>
Cc: Tom Rini <trini@ti.com>
Cc: Masahiro Yamada <yamada.m@jp.panasonic.com>
Diffstat (limited to 'drivers/crypto/ace_sha.h')
| -rw-r--r-- | drivers/crypto/ace_sha.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/crypto/ace_sha.h b/drivers/crypto/ace_sha.h index a426d52372..f1097f72dc 100644 --- a/drivers/crypto/ace_sha.h +++ b/drivers/crypto/ace_sha.h @@ -72,9 +72,10 @@ struct exynos_ace_sfr { unsigned char res12[0x30]; unsigned int hash_result[8]; unsigned char res13[0x20]; - unsigned int hash_seed[8]; - unsigned int hash_prng[8]; - unsigned char res14[0x180]; + unsigned int hash_seed[5]; + unsigned char res14[12]; + unsigned int hash_prng[5]; + unsigned char res15[0x18c]; unsigned int pka_sfr[5]; /* base + 0x700 */ }; @@ -291,6 +292,7 @@ struct exynos_ace_sfr { #define ACE_HASH_PRNGERROR_MASK (1 << 7) #define ACE_HASH_PRNGERROR_OFF (0 << 7) #define ACE_HASH_PRNGERROR_ON (1 << 7) +#define ACE_HASH_PRNG_REG_NUM 5 #define ACE_SHA_TYPE_SHA1 1 #define ACE_SHA_TYPE_SHA256 2 |