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3 Commits

Author SHA1 Message Date
Leandro Pereira 30e558f333 devices: entropy: Initialize drivers during PRE_KERNEL_1 stage 
To ensure that early code that requires entropy has the HWRNG devices
fully initialized, initialize them all during PRE_KERNEL_1 stage.

Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
 2018-05-22 15:59:25 -07:00
Leandro Pereira 8b883a61a3 subsys/random: sys_rand32_get() implementation that uses entropy API 
Instead of every hardware number generator driver providing an
implementation of this function, use the random device API to
centralize the implementation of this function.

This is a very simplistic function that can be seen as a stepping stone
to refactor the random number generation in Zephyr.

Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
 2017-11-01 08:26:29 -04:00
Leandro Pereira da9b0ddf5b drivers: Rename `random` to `entropy` 
This should clear up some of the confusion with random number
generators and drivers that obtain entropy from the hardware.  Also,
many hardware number generators have limited bandwidth, so it's natural
for their output to be only used for seeding a random number generator.

Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
 2017-11-01 08:26:29 -04:00