Using ENTROPY_CC310 with BT

[rerickson]

If I add

CONFIG_BT=y

CONFIG_BT_PERIPHERAL=y

to tests/crypto/prj.conf then CONFIG_ENTROPY_CC310=y gets turned off when building.  By default, this will then cause a hard fault if anything calls sys_rand32_get().

What are the proper configs to use ENTROPY_CC310 with Bluetooth?

[Øyvind]

Hello, 

I have forwarded your inquiry to our NCS team and will get back to you as soon as I have an answer. 

Kind regards,
Øyvind

[Øyvind]

Hello, 

There was a dependency in CC310: 

entropy: cc310 driver depends on !BT_LLL_VENDOR_NORDIC
    
    The selection of BB_LLL_VENDOR_NORDIC results in inclusion of
    drivers/entropy/entropy_nrf5.c which then conflicts with the cc310
    entropy driver.
    Although the entropy_nrf5.c driver requires that ENTROPY_NRF_FORCE_ALT
    is not set, then the forced selection of entropy nrf5 rng by
    BB_LLL_VENDOR_NORDIC, results in this dependency not working as
    expected.
    
    Thus, BB_LLL_VENDOR_NORDIC, is added as a dependency to ENTROPY_CC310.

This will be removed in this pull request.

Kind regards,
Øyvind