8cf8db3a73
Consistently use
config FOO
bool/int/hex/string "Prompt text"
instead of
config FOO
bool/int/hex/string
prompt "Prompt text"
(...and a bunch of other variations that e.g. swapped the order of the
type and the 'prompt', or put other properties between them).
The shorthand is fully equivalent to using 'prompt'. It saves lines and
avoids tricking people into thinking there is some semantic difference.
Most of the grunt work was done by a modified version of
https://unix.stackexchange.com/questions/26284/
how-can-i-use-sed-to-replace-a-multi-line-string/26290#26290, but some
of the rarer variations had to be converted manually.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
245 lines
7.1 KiB
Text
245 lines
7.1 KiB
Text
# Kconfig - timer driver configuration options
|
|
|
|
#
|
|
# Copyright (c) 2014-2015 Wind River Systems, Inc.
|
|
# Copyright (c) 2016 Cadence Design Systems, Inc.
|
|
#
|
|
# SPDX-License-Identifier: Apache-2.0
|
|
#
|
|
|
|
|
|
menu "Timer Drivers"
|
|
|
|
config HPET_TIMER
|
|
bool "HPET timer"
|
|
depends on X86
|
|
select IOAPIC
|
|
select LOAPIC
|
|
select TIMER_READS_ITS_FREQUENCY_AT_RUNTIME
|
|
help
|
|
This option selects High Precision Event Timer (HPET) as a
|
|
system timer.
|
|
|
|
config HPET_TIMER_LEGACY_EMULATION
|
|
bool "HPET timer legacy emulation mode"
|
|
depends on HPET_TIMER
|
|
help
|
|
This option switches HPET to legacy emulation mode.
|
|
In this mode 8254 PIT is disabled, HPET timer0 is connected
|
|
to IOAPIC IRQ2, timer1 -- to IOAPIC IRQ8.
|
|
|
|
config HPET_TIMER_DEBUG
|
|
bool "Enable HPET debug output"
|
|
depends on HPET_TIMER && PRINTK
|
|
help
|
|
This option enables HPET debugging output.
|
|
|
|
config HPET_TIMER_BASE_ADDRESS
|
|
hex "HPET Base Address"
|
|
default 0xFED00000
|
|
depends on HPET_TIMER
|
|
help
|
|
This options specifies the base address of the HPET timer device.
|
|
|
|
config HPET_TIMER_IRQ
|
|
int "HPET Timer IRQ"
|
|
default 20
|
|
depends on HPET_TIMER
|
|
help
|
|
This option specifies the IRQ used by the HPET timer.
|
|
|
|
config HPET_TIMER_IRQ_PRIORITY
|
|
int "HPET Timer IRQ Priority"
|
|
default 4
|
|
depends on HPET_TIMER
|
|
help
|
|
This option specifies the IRQ priority used by the HPET timer.
|
|
|
|
choice
|
|
depends on HPET_TIMER
|
|
prompt "HPET Interrupt Trigger Condition"
|
|
default HPET_TIMER_FALLING_EDGE
|
|
|
|
config HPET_TIMER_FALLING_EDGE
|
|
bool "Falling Edge"
|
|
help
|
|
This option signifies that the HPET timer uses falling edge interrupts.
|
|
|
|
config HPET_TIMER_RISING_EDGE
|
|
bool "Rising Edge"
|
|
help
|
|
This option signifies that the HPET timer uses rising edge interrupts.
|
|
|
|
config HPET_TIMER_LEVEL_HIGH
|
|
bool "Level High"
|
|
help
|
|
This option signifies that the HPET timer uses level high interrupts.
|
|
|
|
config HPET_TIMER_LEVEL_LOW
|
|
bool "Level Low"
|
|
help
|
|
This option signifies that the HPET timer uses level low interrupts.
|
|
|
|
endchoice
|
|
|
|
config LOAPIC_TIMER
|
|
bool "LOAPIC timer"
|
|
depends on (LOAPIC || MVIC) && X86
|
|
help
|
|
This option selects LOAPIC timer as a system timer.
|
|
|
|
config LOAPIC_TIMER_IRQ
|
|
int "Local APIC Timer IRQ"
|
|
default 24
|
|
depends on LOAPIC_TIMER
|
|
help
|
|
This option specifies the IRQ used by the LOAPIC timer.
|
|
|
|
config LOAPIC_TIMER_IRQ_PRIORITY
|
|
int "Local APIC Timer IRQ Priority"
|
|
default 2
|
|
depends on LOAPIC_TIMER
|
|
help
|
|
This options specifies the IRQ priority used by the LOAPIC timer.
|
|
|
|
config TSC_CYCLES_PER_SEC
|
|
int "Frequency of x86 CPU timestamp counter"
|
|
default 0
|
|
depends on LOAPIC_TIMER
|
|
help
|
|
The x86 implementation of LOAPIC k_cycle_get_32() relies on the x86 TSC.
|
|
This runs at the CPU speed and not the bus speed. If set to 0, the
|
|
value of CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC will be used instead;
|
|
many MCUs these values are the same.
|
|
|
|
config ARCV2_TIMER
|
|
bool "ARC Timer"
|
|
default y
|
|
depends on ARC
|
|
help
|
|
This module implements a kernel device driver for the ARCv2 processor timer 0
|
|
and provides the standard "system clock driver" interfaces.
|
|
|
|
config ARCV2_TIMER_IRQ_PRIORITY
|
|
int "ARC timer interrupt priority"
|
|
default 0
|
|
depends on ARCV2_TIMER
|
|
help
|
|
This option specifies the IRQ priority used by the ARC timer. Lower
|
|
values have higher priority.
|
|
|
|
config CORTEX_M_SYSTICK
|
|
bool "Cortex-M SYSTICK timer"
|
|
default y
|
|
depends on CPU_HAS_SYSTICK
|
|
help
|
|
This module implements a kernel device driver for the Cortex-M processor
|
|
SYSTICK timer and provides the standard "system clock driver" interfaces.
|
|
|
|
config ALTERA_AVALON_TIMER
|
|
bool "Altera Avalon Interval Timer"
|
|
default y
|
|
depends on NIOS2
|
|
help
|
|
This module implements a kernel device driver for the Altera Avalon
|
|
Interval Timer as described in the Embedded IP documentation, for use
|
|
with Nios II and possibly other Altera soft CPUs. It provides the
|
|
standard "system clock driver" interfaces.
|
|
|
|
config NRF_RTC_TIMER
|
|
bool "nRF Real Time Counter (NRF_RTC1) Timer"
|
|
default y
|
|
depends on SOC_FAMILY_NRF && CLOCK_CONTROL_NRF5
|
|
help
|
|
This module implements a kernel device driver for the nRF Real Time
|
|
Counter NRF_RTC1 and provides the standard "system clock driver"
|
|
interfaces.
|
|
|
|
config PULPINO_TIMER
|
|
bool "pulpino Timer"
|
|
default y
|
|
depends on SOC_RISCV32_PULPINO
|
|
help
|
|
This module implements a kernel device driver for the pulpino processor
|
|
timer driver. It provides the standard "system clock driver" interfaces.
|
|
|
|
config RISCV_MACHINE_TIMER
|
|
bool "RISCV Machine Timer"
|
|
depends on SOC_FAMILY_RISCV_PRIVILEGE
|
|
help
|
|
This module implements a kernel device driver for the generic RISCV machine
|
|
timer driver. It provides the standard "system clock driver" interfaces.
|
|
|
|
config NATIVE_POSIX_TIMER
|
|
bool "(POSIX) native_posix timer driver"
|
|
default y
|
|
depends on BOARD_NATIVE_POSIX
|
|
help
|
|
This module implements a kernel device driver for the native_posix HW timer
|
|
model
|
|
|
|
config XTENSA_TIMER
|
|
bool "Xtensa timer support"
|
|
depends on XTENSA
|
|
default y
|
|
help
|
|
This module implements a kernel device driver for the Xtensa processor and
|
|
provides the standard "system clock driver" interfaces.
|
|
If unchecked, no timer will be used.
|
|
If checked it will use either an internal timer (default option) or an
|
|
external timer. In that case one shall unselect XTENSA_INTERNAL_TIMER and
|
|
define XTENSA_TIMER_IRQ and XTENSA_TIMER_IRQ_PRIORITY.
|
|
|
|
config XTENSA_INTERNAL_TIMER
|
|
bool "Xtensa internal timer"
|
|
depends on XTENSA_TIMER
|
|
default y
|
|
help
|
|
This module implements a kernel device driver for the Xtensa processor
|
|
internal timer and provides the standard "system clock driver" interfaces.
|
|
If unchecked, an external timer will be used. It will rely on a tick
|
|
interrupt connected to an IRQ line. In this case one shall define
|
|
both XTENSA_TIMER_IRQ and XTENSA_TIMER_IRQ_PRIORITY.
|
|
|
|
config XTENSA_TIMER_IRQ
|
|
int "Xtensa external timer interrupt number"
|
|
depends on XTENSA_TIMER && !XTENSA_INTERNAL_TIMER
|
|
range -1 31
|
|
default -1
|
|
help
|
|
This is the number of interrupt line used by the external timer.
|
|
The special value of -1 allows using the internal timer in order to
|
|
emulate an external timer. This is generally useful for running the project on
|
|
a simulator where it is hard to emulate an external interrupt.
|
|
|
|
config XTENSA_TIMER_IRQ_PRIORITY
|
|
int "Xtensa external timer interrupt priority"
|
|
depends on XTENSA_TIMER && !XTENSA_INTERNAL_TIMER
|
|
range 1 6
|
|
default 1
|
|
help
|
|
This is the priority of interrupt line.
|
|
|
|
config SYSTEM_CLOCK_DISABLE
|
|
bool "API to disable system clock"
|
|
help
|
|
This option enables the sys_clock_disable() API in the kernel. It is
|
|
needed by some subsystems (which will automatically select it), but is
|
|
rarely needed by applications.
|
|
|
|
config TIMER_READS_ITS_FREQUENCY_AT_RUNTIME
|
|
bool "Timer queries its hardware to find its frequency at runtime"
|
|
help
|
|
The drivers select this option automatically when needed. Do not modify
|
|
this unless you have a very good reason for it.
|
|
|
|
config SYSTEM_CLOCK_INIT_PRIORITY
|
|
int "System clock driver initialization priority"
|
|
default 0
|
|
help
|
|
This options can be used to set a specific initialization priority
|
|
value for the system clock driver. As driver initialization might need
|
|
the clock to be running already, you should let the default value as it
|
|
is (0).
|
|
|
|
endmenu
|