From 0bd937248a7a69f531e19eac28d164fce0c60855 Mon Sep 17 00:00:00 2001 From: Przemyslaw Marczak Date: Tue, 25 Mar 2014 10:58:21 +0100 Subject: 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 cc: Akshay Saraswat cc: ARUN MANKUZHI cc: Minkyu Kang Cc: Michael Walle Cc: Tom Rini Cc: Masahiro Yamada --- drivers/crypto/ace_sha.h | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers/crypto/ace_sha.h') 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 -- cgit