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drivers: clock_control: nrf: Add option to use external LF source

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Extended clock configuration to allow usage of external clock
source for nrf52 series.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
This commit is contained in:
Krzysztof Chruscinski 2019-07-02 07:40:42 +02:00 committed by Ioannis Glaropoulos
parent c2100c9dd4
commit c661cc6c78
2 changed files with 14 additions and 0 deletions
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8
drivers/clock_control/Kconfig.nrf
View file

@ -37,6 +37,14 @@ config CLOCK_CONTROL_NRF_K32SRC_SYNTH
depends on !SOC_SERIES_NRF91X
bool "Synthesized from HFCLK"
config CLOCK_CONTROL_NRF_K32SRC_EXT_LOW_SWING
depends on SOC_SERIES_NRF52X
bool "External low swing"
config CLOCK_CONTROL_NRF_K32SRC_EXT_FULL_SWING
depends on SOC_SERIES_NRF52X
bool "External full swing"
endchoice
config CLOCK_CONTROL_NRF_K32SRC_BLOCKING

6
include/drivers/clock_control/nrf_clock_control.h
View file

@ -24,6 +24,12 @@
#ifdef CONFIG_CLOCK_CONTROL_NRF_K32SRC_SYNTH
#define CLOCK_CONTROL_NRF_K32SRC NRF_CLOCK_LFCLK_Synth
#endif
#ifdef CONFIG_CLOCK_CONTROL_NRF_K32SRC_EXT_LOW_SWING
#define CLOCK_CONTROL_NRF_K32SRC NRF_CLOCK_LFCLK_Xtal_Low_Swing
#endif
#ifdef CONFIG_CLOCK_CONTROL_NRF_K32SRC_EXT_FULL_SWING
#define CLOCK_CONTROL_NRF_K32SRC NRF_CLOCK_LFCLK_Xtal_Full_Swing
#endif
/* Define 32KHz clock accuracy */
#ifdef CONFIG_CLOCK_CONTROL_NRF_K32SRC_500PPM