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EFM32: In order to use LEUART, LE clocking must be enabled

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This commit is contained in:
Gregory Nutt 2014-10-29 11:20:54 -06:00
parent 5120d745fd
commit a418aefe13
1 changed files with 6 additions and 0 deletions
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6
arch/arm/src/efm32/efm32_lowputc.c
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@ -323,6 +323,12 @@ void efm32_lowsetup(void)
#endif /* HAVE_UART_DEVICE */
#ifdef HAVE_LEUART_DEVICE
/* Enable the LE interface clock must be enabled in CMU_HFCORECLKEN0 */
regval = getreg32(EFM32_CMU_HFCORECLKEN0);
regval |= CMU_HFCORECLKEN0_LE;
putreg32(regval, EFM32_CMU_HFCORECLKEN0);
/* Enable clocking to configured LEUART interfaces */
regval = getreg32(EFM32_CMU_LFBCLKEN0);