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https://github.com/zephyrproject-rtos/zephyr
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23c92100ac
Added Kconfig option and implementation to support a non-blocking startup of 32KHz crystal oscillator. This will reduce the time from boot to application start while the crystal startup happens in background. Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
99 lines
2.1 KiB
Plaintext
99 lines
2.1 KiB
Plaintext
# Kconfig - Clock controller driver configuration options
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#
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# Copyright (c) 2016 Nordic Semiconductor ASA
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#
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# SPDX-License-Identifier: Apache-2.0
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menuconfig CLOCK_CONTROL_NRF5
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bool
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prompt "NRF5 Clock controller support"
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depends on SOC_FAMILY_NRF
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help
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Enable support for the Nordic Semiconductor nRF5x series SoC clock
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driver.
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if CLOCK_CONTROL_NRF5
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config CLOCK_CONTROL_NRF5_IRQ_PRIORITY
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int
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prompt "Power Clock Interrupt Priority"
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range 0 7
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default 1
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help
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The interrupt priority for Power Clock interrupt.
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config CLOCK_CONTROL_NRF5_M16SRC_DRV_NAME
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string
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prompt "NRF5 16MHz clock device name"
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default "clk_m16src"
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config CLOCK_CONTROL_NRF5_K32SRC_DRV_NAME
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string
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prompt "NRF5 32KHz clock device name"
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default "clk_k32src"
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choice
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prompt "32KHz clock source"
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default CLOCK_CONTROL_NRF5_K32SRC_XTAL
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config CLOCK_CONTROL_NRF5_K32SRC_RC
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bool
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prompt "RC Oscillator"
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config CLOCK_CONTROL_NRF5_K32SRC_XTAL
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bool
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prompt "Crystal Oscillator"
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endchoice
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config CLOCK_CONTROL_NRF5_K32SRC_BLOCKING
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bool
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prompt "Blocking 32KHz crystal oscillator startup"
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depends on CLOCK_CONTROL_NRF5_K32SRC_XTAL
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help
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Clock control driver will spin wait in CPU sleep until 32KHz
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crystal oscillator starts up. If not enabled, RC oscillator will
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initially start running and automatically switch to crystal when
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ready.
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choice
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prompt "32KHz clock accuracy"
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default CLOCK_CONTROL_NRF5_K32SRC_500PPM if CLOCK_CONTROL_NRF5_K32SRC_RC
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default CLOCK_CONTROL_NRF5_K32SRC_20PPM
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config CLOCK_CONTROL_NRF5_K32SRC_500PPM
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bool
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prompt "251 ppm to 500 ppm"
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config CLOCK_CONTROL_NRF5_K32SRC_250PPM
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bool
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prompt "151 ppm to 250 ppm"
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config CLOCK_CONTROL_NRF5_K32SRC_150PPM
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bool
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prompt "101 ppm to 150 ppm"
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config CLOCK_CONTROL_NRF5_K32SRC_100PPM
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bool
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prompt "76 ppm to 100 ppm"
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config CLOCK_CONTROL_NRF5_K32SRC_75PPM
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bool
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prompt "51 ppm to 75 ppm"
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config CLOCK_CONTROL_NRF5_K32SRC_50PPM
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bool
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prompt "31 ppm to 50 ppm"
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config CLOCK_CONTROL_NRF5_K32SRC_30PPM
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bool
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prompt "21 ppm to 30 ppm"
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config CLOCK_CONTROL_NRF5_K32SRC_20PPM
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bool
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prompt "0 ppm to 20 ppm"
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endchoice
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endif # CLOCK_CONTROL_NRF5
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