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Merged in marten_svanfeldt/nuttx-arch-public/for_upstream/stm32_PLLSAI (pull request #19)

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Fix setup of PLLSAI in STM32F4xx.
This commit is contained in:
Gregory Nutt 2015-10-22 18:17:21 +08:00
commit c87c50df14
1 changed files with 4 additions and 0 deletions
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4
arch/arm/src/stm32/stm32f40xxx_rcc.c
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@ -751,12 +751,16 @@ static void stm32_stdclockconfig(void)
/* Configure PLLSAI */
regval = getreg32(STM32_RCC_PLLSAICFGR);
regval &= ~(RCC_PLLSAICFGR_PLLSAIN_MASK
| RCC_PLLSAICFGR_PLLSAIR_MASK
| RCC_PLLSAICFGR_PLLSAIQ_MASK);
regval |= (STM32_RCC_PLLSAICFGR_PLLSAIN
| STM32_RCC_PLLSAICFGR_PLLSAIR
| STM32_RCC_PLLSAICFGR_PLLSAIQ);
putreg32(regval, STM32_RCC_PLLSAICFGR);
regval = getreg32(STM32_RCC_DCKCFGR);
regval &= ~RCC_DCKCFGR_PLLSAIDIVR_MASK;
regval |= STM32_RCC_DCKCFGR_PLLSAIDIVR;
putreg32(regval, STM32_RCC_DCKCFGR);