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Merged in david_s5/nuttx/upstream_to_greg_HSI_ON (pull request #191)

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HSI should not be turned off
This commit is contained in:
Gregory Nutt 2017-01-11 17:14:14 -06:00
commit 3191549116
1 changed files with 2 additions and 7 deletions
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9
arch/arm/src/stm32/stm32f40xxx_rcc.c
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@ -95,10 +95,10 @@ static inline void rcc_reset(void)
putreg32(0x00000000, STM32_RCC_CFGR);
/* Reset HSION, HSEON, CSSON and PLLON bits */
/* Reset HSEON, CSSON and PLLON bits */
regval = getreg32(STM32_RCC_CR);
regval &= ~(RCC_CR_HSION | RCC_CR_HSEON | RCC_CR_CSSON | RCC_CR_PLLON);
regval &= ~(RCC_CR_HSEON | RCC_CR_CSSON | RCC_CR_PLLON);
putreg32(regval, STM32_RCC_CR);
/* Reset PLLCFGR register to reset default */
@ -619,11 +619,6 @@ static void stm32_stdclockconfig(void)
volatile int32_t timeout;
#ifdef STM32_BOARD_USEHSI
/* Enable Internal High-Speed Clock (HSI) */
regval = getreg32(STM32_RCC_CR);
regval |= RCC_CR_HSION; /* Enable HSI */
putreg32(regval, STM32_RCC_CR);
/* Wait until the HSI is ready (or until a timeout elapsed) */