lib: rand: introduce new configs: CONFIG_LIB_RAND and CONFIG_LIB_HW_RAND
New configs:
- CONFIG_LIB_RAND - to enable implementation of rand library in lib/rand.c
- CONFIG_LIB_HW_RAND - to enable hardware based implementations of lib rand
Other changes:
- add CONFIG_LIB_RAND to boards configs which needs rand()
- put only one rand.o dependency in lib/Makefile
CONFIG_LIB_HW_RAND should be defined for drivers which implements rand library
(declared in include/common.h):
- void srand(unsigned int seed)
- unsigned int rand(void)
- unsigned int rand_r(unsigned int *seedp)
Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Michael Walle <michael@walle.cc>
Cc: Tom Rini <trini@ti.com>
Cc: Masahiro Yamada <yamada.m@jp.panasonic.com>
diff --git a/include/common.h b/include/common.h
index 5c9bd08..072a1e1 100644
--- a/include/common.h
+++ b/include/common.h
@@ -835,9 +835,7 @@
#include <u-boot/crc.h>
/* lib/rand.c */
-#if defined(CONFIG_RANDOM_MACADDR) || \
- defined(CONFIG_BOOTP_RANDOM_DELAY) || \
- defined(CONFIG_CMD_LINK_LOCAL)
+#if defined(CONFIG_LIB_RAND) || defined(CONFIG_LIB_HW_RAND)
#define RAND_MAX -1U
void srand(unsigned int seed);
unsigned int rand(void);