Commit Graph

7 Commits

Author SHA1 Message Date
Ulf Magnusson 61bcd766f7 kconfig: drivers: entropy: Remove duplicated ENTROPY_GENERATOR deps.
Also remove some duplicated dependencies for the related symbol
ENTROPY_NRF5_RNG.

The redundant ENTROPY_GENERATOR deps. are in files sourced within a

  if ENTROPY_GENERATOR
  ...
  endif

block in drivers/entropy/Kconfig.

The redundant ENTROPY_NRF5_RNG deps. are due to redundant 'depends on'
within an 'if' in the same file.

Tip: Jump to symbols with '/' in the menuconfig and press '?' to check
their dependencies. If there are duplicated dependencies, the
'included via ...' path can be handy to discover where they are added.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-03-07 13:38:35 +01:00
Kumar Gala bfc4281cc0 arm: kinetis: Add basic DTS support for TRNG
Add dts binding and info for TRNG device and enable basic support to
get the device name from DTS.  We leave for now the base addresses
coming from the MCUX HAL.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-11-06 08:49:50 -06:00
Kumar Gala 727a9a7f99 arm: kinetis: Add basic DTS support for RNGA
Add dts binding and info for RNGA device and enable basic support to
get the device name from DTS.  We leave for now the base addresses
coming from the MCUX HAL.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-11-06 08:49:50 -06:00
Ulf Magnusson 00ab5ed22a drivers: entropy: Kconfig: Remove redundant 'default n' properties
Bool symbols implicitly default to 'n'.

A 'default n' can make sense e.g. in a Kconfig.defconfig file, if you
want to override a 'default y' on the base definition of the symbol. It
isn't used like that on any of these symbols though, and is
inconsistent.

This will make the auto-generated Kconfig documentation have "No
defaults. Implicitly defaults to n." as well, which is clearer than
'default n if ...'

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2018-07-03 17:11:31 -04:00
Ulf Magnusson 93689bdc80 kconfig: Remove no-op selects of choice symbols
Selecting a choice symbol is always a no-op, and the latest version of
Kconfiglib prints a warning. This commit removes all selects of choice
symbols, which might make the Kconfig files a bit clearer and gets rid
of the warnings.

This is just a dumb removal. I did not try to guess the intent of each
select.

Fixes #6849

Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com>
2018-03-29 08:57:39 -04:00
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