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boards: arm: nrf5340_dk: Enable DC/DC by default

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Since the nRF5340 DK contains the required DC/DC circuitry,
enable it by default while keeping it configurable. This
reduces power consumption in application core , network
core and high voltage use.

Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
This commit is contained in:
Vinayak Kariappa Chettimada 2019-11-12 11:39:42 +05:30 • committed by Alberto Escolar
commit 29a1bbd24a
3 changed files with 46 additions and 0 deletions
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15
boards/arm/nrf5340_dk_nrf5340/Kconfig
View file

@ -5,6 +5,21 @@
if BOARD_NRF5340_DK_NRF5340_CPUAPP || BOARD_NRF5340_DK_NRF5340_CPUAPPNS
config BOARD_ENABLE_DCDC_APP
bool "Enable Application MCU DCDC converter"
select SOC_DCDC_NRF53X_APP
default y
config BOARD_ENABLE_DCDC_NET
bool "Enable Network MCU DCDC converter"
select SOC_DCDC_NRF53X_NET
default y
config BOARD_ENABLE_DCDC_HV
bool "Enable High Voltage DCDC converter"
select SOC_DCDC_NRF53X_HV
default y
endif # BOARD_NRF5340_DK_NRF5340_CPUAPP || BOARD_NRF5340_DK_NRF5340_CPUAPPNS
if BOARD_NRF5340_DK_NRF5340_CPUNET

21
soc/arm/nordic_nrf/nrf53/Kconfig.soc
View file

@ -89,6 +89,27 @@ config SOC_NRF5340_CPUNET_QKAA
endchoice
if SOC_NRF5340_CPUAPP
config SOC_DCDC_NRF53X_APP
bool
help
Enable nRF53 series System on Chip Application MCU DC/DC converter.
config SOC_DCDC_NRF53X_NET
bool
help
Enable nRF53 series System on Chip Network MCU DC/DC converter.
config SOC_DCDC_NRF53X_HV
bool
help
Enable nRF53 series System on Chip High Voltage DC/DC converter.
endif # SOC_NRF5340_CPUAPP
config NRF_ENABLE_CACHE
bool "Enable cache"
depends on (SOC_NRF5340_CPUAPP && !TRUSTED_EXECUTION_NONSECURE) \

10
soc/arm/nordic_nrf/nrf53/soc.c
View file

@ -59,6 +59,16 @@ static int nordicsemi_nrf53_init(struct device *arg)
*((u32_t *)0x500046D0) = 0x1;
#endif
#if defined(CONFIG_SOC_DCDC_NRF53X_APP)
NRF_REGULATORS->VREGMAIN.DCDCEN = 1;
#endif
#if defined(CONFIG_SOC_DCDC_NRF53X_NET)
NRF_REGULATORS->VREGRADIO.DCDCEN = 1;
#endif
#if defined(CONFIG_SOC_DCDC_NRF53X_HV)
NRF_REGULATORS->VREGH.DCDCEN = 1;
#endif
/* Install default handler that simply resets the CPU
* if configured in the kernel, NOP otherwise
*/