1menu "Library routines" 2 3config CC_OPTIMIZE_LIBS_FOR_SPEED 4 bool "Optimize libraries for speed" 5 help 6 Enabling this option will pass "-O2" to gcc when compiling 7 under "lib" directory. 8 9 If unsure, say N. 10 11config HAVE_PRIVATE_LIBGCC 12 bool 13 14config USE_PRIVATE_LIBGCC 15 bool "Use private libgcc" 16 depends on HAVE_PRIVATE_LIBGCC 17 help 18 This option allows you to use the built-in libgcc implementation 19 of U-boot instead of the one privided by the compiler. 20 If unsure, say N. 21 22config SYS_HZ 23 int 24 default 1000 25 help 26 The frequency of the timer returned by get_timer(). 27 get_timer() must operate in milliseconds and this option must be 28 set to 1000. 29 30source lib/rsa/Kconfig 31 32menu "Hashing Support" 33 34config SHA1 35 bool "Enable SHA1 support" 36 help 37 This option enables support of hashing using SHA1 algorithm. 38 The hash is calculated in software. 39 The SHA1 algorithm produces a 160-bit (20-byte) hash value 40 (digest). 41 42config SHA256 43 bool "Enable SHA256 support" 44 help 45 This option enables support of hashing using SHA256 algorithm. 46 The hash is calculated in software. 47 The SHA256 algorithm produces a 256-bit (32-byte) hash value 48 (digest). 49 50config SHA_HW_ACCEL 51 bool "Enable hashing using hardware" 52 help 53 This option enables hardware acceleration 54 for SHA1/SHA256 hashing. 55 This affects the 'hash' command and also the 56 hash_lookup_algo() function. 57 58config SHA_PROG_HW_ACCEL 59 bool "Enable Progressive hashing support using hardware" 60 depends on SHA_HW_ACCEL 61 help 62 This option enables hardware-acceleration for 63 SHA1/SHA256 progressive hashing. 64 Data can be streamed in a block at a time and the hashing 65 is performed in hardware. 66endmenu 67 68endmenu 69