mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-15 00:04:15 +08:00
89355274e1
Add clocksource and clockevent driver from dual RPS timer. The HW provides a dual one-shot or periodic 24bit timers, the drivers set the first one as tick event source and the second as a continuous scheduler clock source. The timer can use 1, 16 or 256 as pre-dividers, thus the clocksource uses 16 by default. CC: Ma Haijun <mahaijuns@gmail.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
439 lines
11 KiB
Plaintext
439 lines
11 KiB
Plaintext
menu "Clock Source drivers"
|
|
depends on !ARCH_USES_GETTIMEOFFSET
|
|
|
|
config CLKSRC_OF
|
|
bool
|
|
select CLKSRC_PROBE
|
|
|
|
config CLKSRC_ACPI
|
|
bool
|
|
select CLKSRC_PROBE
|
|
|
|
config CLKSRC_PROBE
|
|
bool
|
|
|
|
config CLKSRC_I8253
|
|
bool
|
|
|
|
config CLKEVT_I8253
|
|
bool
|
|
|
|
config I8253_LOCK
|
|
bool
|
|
|
|
config CLKBLD_I8253
|
|
def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK
|
|
|
|
config CLKSRC_MMIO
|
|
bool
|
|
|
|
config DIGICOLOR_TIMER
|
|
bool "Digicolor timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
select CLKSRC_MMIO
|
|
depends on HAS_IOMEM
|
|
help
|
|
Enables the support for the digicolor timer driver.
|
|
|
|
config DW_APB_TIMER
|
|
bool "DW APB timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
help
|
|
Enables the support for the dw_apb timer.
|
|
|
|
config DW_APB_TIMER_OF
|
|
bool
|
|
select DW_APB_TIMER
|
|
select CLKSRC_OF
|
|
|
|
config ROCKCHIP_TIMER
|
|
bool "Rockchip timer driver" if COMPILE_TEST
|
|
depends on ARM || ARM64
|
|
select CLKSRC_OF
|
|
help
|
|
Enables the support for the rockchip timer driver.
|
|
|
|
config ARMADA_370_XP_TIMER
|
|
bool "Armada 370 and XP timer driver" if COMPILE_TEST
|
|
depends on ARM
|
|
select CLKSRC_OF
|
|
select CLKSRC_MMIO
|
|
help
|
|
Enables the support for the Armada 370 and XP timer driver.
|
|
|
|
config MESON6_TIMER
|
|
bool "Meson6 timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
select CLKSRC_MMIO
|
|
help
|
|
Enables the support for the Meson6 timer driver.
|
|
|
|
config ORION_TIMER
|
|
bool "Orion timer driver" if COMPILE_TEST
|
|
depends on ARM
|
|
select CLKSRC_OF
|
|
select CLKSRC_MMIO
|
|
help
|
|
Enables the support for the Orion timer driver
|
|
|
|
config SUN4I_TIMER
|
|
bool "Sun4i timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
depends on HAS_IOMEM
|
|
select CLKSRC_MMIO
|
|
help
|
|
Enables support for the Sun4i timer.
|
|
|
|
config SUN5I_HSTIMER
|
|
bool "Sun5i timer driver" if COMPILE_TEST
|
|
select CLKSRC_MMIO
|
|
depends on COMMON_CLK
|
|
help
|
|
Enables support the Sun5i timer.
|
|
|
|
config TEGRA_TIMER
|
|
bool "Tegra timer driver" if COMPILE_TEST
|
|
select CLKSRC_MMIO
|
|
depends on ARM
|
|
help
|
|
Enables support for the Tegra driver.
|
|
|
|
config VT8500_TIMER
|
|
bool "VT8500 timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
depends on HAS_IOMEM
|
|
help
|
|
Enables support for the VT8500 driver.
|
|
|
|
config CADENCE_TTC_TIMER
|
|
bool "Cadence TTC timer driver" if COMPILE_TEST
|
|
depends on COMMON_CLK
|
|
help
|
|
Enables support for the cadence ttc driver.
|
|
|
|
config ASM9260_TIMER
|
|
bool "ASM9260 timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
select CLKSRC_MMIO
|
|
select CLKSRC_OF
|
|
help
|
|
Enables support for the ASM9260 timer.
|
|
|
|
config CLKSRC_NOMADIK_MTU
|
|
bool "Nomakdik clocksource driver" if COMPILE_TEST
|
|
depends on ARM
|
|
select CLKSRC_MMIO
|
|
help
|
|
Support for Multi Timer Unit. MTU provides access
|
|
to multiple interrupt generating programmable
|
|
32-bit free running decrementing counters.
|
|
|
|
config CLKSRC_NOMADIK_MTU_SCHED_CLOCK
|
|
bool
|
|
depends on CLKSRC_NOMADIK_MTU
|
|
help
|
|
Use the Multi Timer Unit as the sched_clock.
|
|
|
|
config CLKSRC_DBX500_PRCMU
|
|
bool "Clocksource PRCMU Timer" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
depends on HAS_IOMEM
|
|
help
|
|
Use the always on PRCMU Timer as clocksource
|
|
|
|
config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
|
|
bool "Clocksource PRCMU Timer sched_clock"
|
|
depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK)
|
|
default y
|
|
help
|
|
Use the always on PRCMU Timer as sched_clock
|
|
|
|
config CLKSRC_EFM32
|
|
bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
|
|
depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
|
|
select CLKSRC_MMIO
|
|
default ARCH_EFM32
|
|
help
|
|
Support to use the timers of EFM32 SoCs as clock source and clock
|
|
event device.
|
|
|
|
config CLKSRC_LPC32XX
|
|
bool "Clocksource for LPC32XX" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
|
|
depends on ARM
|
|
select CLKSRC_MMIO
|
|
select CLKSRC_OF
|
|
help
|
|
Support for the LPC32XX clocksource.
|
|
|
|
config CLKSRC_PISTACHIO
|
|
bool "Clocksource for Pistachio SoC" if COMPILE_TEST
|
|
depends on HAS_IOMEM
|
|
select CLKSRC_OF
|
|
help
|
|
Enables the clocksource for the Pistachio SoC.
|
|
|
|
config CLKSRC_TI_32K
|
|
bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST
|
|
depends on GENERIC_SCHED_CLOCK
|
|
select CLKSRC_OF if OF
|
|
help
|
|
This option enables support for Texas Instruments 32.768 Hz clocksource
|
|
available on many OMAP-like platforms.
|
|
|
|
config CLKSRC_NPS
|
|
bool "NPS400 clocksource driver" if COMPILE_TEST
|
|
depends on !PHYS_ADDR_T_64BIT
|
|
select CLKSRC_MMIO
|
|
select CLKSRC_OF if OF
|
|
help
|
|
NPS400 clocksource support.
|
|
Got 64 bit counter with update rate up to 1000MHz.
|
|
This counter is accessed via couple of 32 bit memory mapped registers.
|
|
|
|
config CLKSRC_STM32
|
|
bool "Clocksource for STM32 SoCs" if !ARCH_STM32
|
|
depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST)
|
|
select CLKSRC_MMIO
|
|
|
|
config CLKSRC_MPS2
|
|
bool "Clocksource for MPS2 SoCs" if COMPILE_TEST
|
|
depends on GENERIC_SCHED_CLOCK
|
|
select CLKSRC_MMIO
|
|
select CLKSRC_OF
|
|
|
|
config ARM_ARCH_TIMER
|
|
bool
|
|
select CLKSRC_OF if OF
|
|
select CLKSRC_ACPI if ACPI
|
|
|
|
config ARM_ARCH_TIMER_EVTSTREAM
|
|
bool "Support for ARM architected timer event stream generation"
|
|
default y if ARM_ARCH_TIMER
|
|
depends on ARM_ARCH_TIMER
|
|
help
|
|
This option enables support for event stream generation based on
|
|
the ARM architected timer. It is used for waking up CPUs executing
|
|
the wfe instruction at a frequency represented as a power-of-2
|
|
divisor of the clock rate.
|
|
The main use of the event stream is wfe-based timeouts of userspace
|
|
locking implementations. It might also be useful for imposing timeout
|
|
on wfe to safeguard against any programming errors in case an expected
|
|
event is not generated.
|
|
This must be disabled for hardware validation purposes to detect any
|
|
hardware anomalies of missing events.
|
|
|
|
config ARM_GLOBAL_TIMER
|
|
bool
|
|
select CLKSRC_OF if OF
|
|
help
|
|
This options enables support for the ARM global timer unit
|
|
|
|
config ARM_TIMER_SP804
|
|
bool "Support for Dual Timer SP804 module"
|
|
depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
|
|
select CLKSRC_MMIO
|
|
select CLKSRC_OF if OF
|
|
|
|
config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
|
|
bool
|
|
depends on ARM_GLOBAL_TIMER
|
|
default y
|
|
help
|
|
Use ARM global timer clock source as sched_clock
|
|
|
|
config ARMV7M_SYSTICK
|
|
bool
|
|
select CLKSRC_OF if OF
|
|
select CLKSRC_MMIO
|
|
help
|
|
This options enables support for the ARMv7M system timer unit
|
|
|
|
config ATMEL_PIT
|
|
select CLKSRC_OF if OF
|
|
def_bool SOC_AT91SAM9 || SOC_SAMA5
|
|
|
|
config ATMEL_ST
|
|
bool
|
|
select CLKSRC_OF
|
|
select MFD_SYSCON
|
|
|
|
config CLKSRC_METAG_GENERIC
|
|
def_bool y if METAG
|
|
help
|
|
This option enables support for the Meta per-thread timers.
|
|
|
|
config CLKSRC_EXYNOS_MCT
|
|
bool "Exynos multi core timer driver" if COMPILE_TEST
|
|
depends on ARM
|
|
help
|
|
Support for Multi Core Timer controller on Exynos SoCs.
|
|
|
|
config CLKSRC_SAMSUNG_PWM
|
|
bool "PWM timer driver for Samsung S3C, S5P" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
depends on HAS_IOMEM
|
|
help
|
|
This is a new clocksource driver for the PWM timer found in
|
|
Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
|
|
for all devicetree enabled platforms. This driver will be
|
|
needed only on systems that do not have the Exynos MCT available.
|
|
|
|
config FSL_FTM_TIMER
|
|
bool "Freescale FlexTimer Module driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
depends on HAS_IOMEM
|
|
select CLKSRC_MMIO
|
|
help
|
|
Support for Freescale FlexTimer Module (FTM) timer.
|
|
|
|
config VF_PIT_TIMER
|
|
bool
|
|
select CLKSRC_MMIO
|
|
help
|
|
Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
|
|
|
|
config OXNAS_RPS_TIMER
|
|
bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
select CLKSRC_OF
|
|
select CLKSRC_MMIO
|
|
help
|
|
This enables support for the Oxford Semiconductor OXNAS RPS timers.
|
|
|
|
config SYS_SUPPORTS_SH_CMT
|
|
bool
|
|
|
|
config MTK_TIMER
|
|
bool "Mediatek timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
|
|
select CLKSRC_OF
|
|
select CLKSRC_MMIO
|
|
help
|
|
Support for Mediatek timer driver.
|
|
|
|
config SYS_SUPPORTS_SH_MTU2
|
|
bool
|
|
|
|
config SYS_SUPPORTS_SH_TMU
|
|
bool
|
|
|
|
config SYS_SUPPORTS_EM_STI
|
|
bool
|
|
|
|
config SH_TIMER_CMT
|
|
bool "Renesas CMT timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
depends on HAS_IOMEM
|
|
default SYS_SUPPORTS_SH_CMT
|
|
help
|
|
This enables build of a clocksource and clockevent driver for
|
|
the Compare Match Timer (CMT) hardware available in 16/32/48-bit
|
|
variants on a wide range of Mobile and Automotive SoCs from Renesas.
|
|
|
|
config SH_TIMER_MTU2
|
|
bool "Renesas MTU2 timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
depends on HAS_IOMEM
|
|
default SYS_SUPPORTS_SH_MTU2
|
|
help
|
|
This enables build of a clockevent driver for the Multi-Function
|
|
Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
|
|
This hardware comes with 16 bit-timer registers.
|
|
|
|
config SH_TIMER_TMU
|
|
bool "Renesas TMU timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
depends on HAS_IOMEM
|
|
default SYS_SUPPORTS_SH_TMU
|
|
help
|
|
This enables build of a clocksource and clockevent driver for
|
|
the 32-bit Timer Unit (TMU) hardware available on a wide range
|
|
SoCs from Renesas.
|
|
|
|
config EM_TIMER_STI
|
|
bool "Renesas STI timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
|
|
default SYS_SUPPORTS_EM_STI
|
|
help
|
|
This enables build of a clocksource and clockevent driver for
|
|
the 48-bit System Timer (STI) hardware available on a SoCs
|
|
such as EMEV2 from former NEC Electronics.
|
|
|
|
config CLKSRC_QCOM
|
|
bool "Qualcomm MSM timer" if COMPILE_TEST
|
|
depends on ARM
|
|
select CLKSRC_OF
|
|
help
|
|
This enables the clocksource and the per CPU clockevent driver for the
|
|
Qualcomm SoCs.
|
|
|
|
config CLKSRC_VERSATILE
|
|
bool "ARM Versatile (Express) reference platforms clock source"
|
|
depends on PLAT_VERSATILE && GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
|
|
select CLKSRC_OF
|
|
default y if MFD_VEXPRESS_SYSREG
|
|
help
|
|
This option enables clock source based on free running
|
|
counter available in the "System Registers" block of
|
|
ARM Versatile, RealView and Versatile Express reference
|
|
platforms.
|
|
|
|
config CLKSRC_MIPS_GIC
|
|
bool
|
|
depends on MIPS_GIC
|
|
select CLKSRC_OF
|
|
|
|
config CLKSRC_TANGO_XTAL
|
|
bool "Clocksource for Tango SoC" if COMPILE_TEST
|
|
depends on ARM
|
|
select CLKSRC_OF
|
|
select CLKSRC_MMIO
|
|
help
|
|
This enables the clocksource for Tango SoC
|
|
|
|
config CLKSRC_PXA
|
|
bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
depends on HAS_IOMEM
|
|
select CLKSRC_MMIO
|
|
help
|
|
This enables OST0 support available on PXA and SA-11x0
|
|
platforms.
|
|
|
|
config H8300_TMR8
|
|
bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
|
|
help
|
|
This enables the 8 bits timer for the H8300 platform.
|
|
|
|
config H8300_TMR16
|
|
bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
|
|
help
|
|
This enables the 16 bits timer for the H8300 platform with the
|
|
H83069 cpu.
|
|
|
|
config H8300_TPU
|
|
bool "Clocksource for the H8300 platform" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
|
|
help
|
|
This enables the clocksource for the H8300 platform with the
|
|
H8S2678 cpu.
|
|
|
|
config CLKSRC_IMX_GPT
|
|
bool "Clocksource using i.MX GPT" if COMPILE_TEST
|
|
depends on ARM && CLKDEV_LOOKUP
|
|
select CLKSRC_MMIO
|
|
|
|
config CLKSRC_ST_LPC
|
|
bool "Low power clocksource found in the LPC" if COMPILE_TEST
|
|
select CLKSRC_OF if OF
|
|
depends on HAS_IOMEM
|
|
select CLKSRC_MMIO
|
|
help
|
|
Enable this option to use the Low Power controller timer
|
|
as clocksource.
|
|
|
|
endmenu
|