hwrng: stm32 - implement STM32MP13x support

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The RNG present on STM32MP13x platforms introduces a customizable
configuration and the conditional reset.

STM32 RNG configuration should best fit the requirements of the
platform. Therefore, put a platform-specific RNG configuration
field in the platform data. Default RNG configuration for STM32MP13
is the NIST certified configuration [1].

While there, fix and the RNG init sequence to support all RNG
versions.

[1] https://csrc.nist.gov/projects/cryptographic-module-validation-program/entropy-validations/certificate/53

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Gatien Chevallier 2023-09-21 10:02:55 +02:00 • committed by Herbert Xu

parent 18d9a8262b

commit 6b85a7e141

1 changed files with 158 additions and 64 deletions

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drivers/char/hw_random/stm32-rng.c

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