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drivers: entropy: add support for stm32wl and stm32g0

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This commit adds entropy support for stm32wl and stm32g0.

Pll is used as clock source and has to be enabled,
other clock sources are not supported at the moment.

Signed-off-by: Thomas Stranger <thomas.stranger@outlook.com>
This commit is contained in:
Thomas Stranger 2021-07-04 16:03:33 +02:00 • committed by Christopher Friedt
commit a587c25156
1 changed files with 3 additions and 0 deletions
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3
drivers/entropy/entropy_stm32.c
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@ -382,6 +382,9 @@ static int entropy_stm32_rng_init(const struct device *dev)
* Linear Feedback Shift Register * Linear Feedback Shift Register
*/ */
LL_RCC_SetRNGClockSource(LL_RCC_RNG_CLKSOURCE_PLLSAI1); LL_RCC_SetRNGClockSource(LL_RCC_RNG_CLKSOURCE_PLLSAI1);
#elif CONFIG_SOC_SERIES_STM32WLX || CONFIG_SOC_SERIES_STM32G0X
LL_RCC_PLL_EnableDomain_RNG();
LL_RCC_SetRNGClockSource(LL_RCC_RNG_CLKSOURCE_PLL);
#elif defined(RCC_CR2_HSI48ON) || defined(RCC_CR_HSI48ON) \ #elif defined(RCC_CR2_HSI48ON) || defined(RCC_CR_HSI48ON) \
|| defined(RCC_CRRCR_HSI48ON) || defined(RCC_CRRCR_HSI48ON)