forked from luck/tmp_suning_uos_patched
9995f4f184
At the hardware level, the J-Core PIT is integrated with the interrupt controller, but it is represented as its own device and has an independent programming interface. It provides a 12-bit countdown timer, which is not presently used, and a periodic timer. The interval length for the latter is programmable via a 32-bit throttle register whose units are determined by a bus-period register. The periodic timer is used to implement both periodic and oneshot clock event modes; in oneshot mode the interrupt handler simply disables the timer as soon as it fires. Despite its device tree node representing an interrupt for the PIT, the actual irq generated is programmable, not hard-wired. The driver is responsible for programming the PIT to generate the hardware irq number that the DT assigns to it. On SMP configurations, J-Core provides cpu-local instances of the PIT; no broadcast timer is needed. This driver supports the creation of the necessary per-cpu clock_event_device instances. A nanosecond-resolution clocksource is provided using the J-Core "RTC" registers, which give a 64-bit seconds count and 32-bit nanoseconds that wrap every second. The driver converts these to a full-range 32-bit nanoseconds count. Signed-off-by: Rich Felker <dalias@libc.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: devicetree@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Rob Herring <robh+dt@kernel.org> Link: http://lkml.kernel.org/r/b591ff12cc5ebf63d1edc98da26046f95a233814.1476393790.git.dalias@libc.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
545 lines
14 KiB
Plaintext
545 lines
14 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 BCM2835_TIMER
|
|
bool "BCM2835 timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
select CLKSRC_MMIO
|
|
help
|
|
Enables the support for the BCM2835 timer driver.
|
|
|
|
config BCM_KONA_TIMER
|
|
bool "BCM mobile timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
select CLKSRC_MMIO
|
|
help
|
|
Enables the support for the BCM Kona mobile timer driver.
|
|
|
|
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 CLPS711X_TIMER
|
|
bool "Cirrus logic timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
select CLKSRC_MMIO
|
|
help
|
|
Enables support for the Cirrus Logic PS711 timer.
|
|
|
|
config ATLAS7_TIMER
|
|
bool "Atlas7 timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
select CLKSRC_MMIO
|
|
help
|
|
Enables support for the Atlas7 timer.
|
|
|
|
config MOXART_TIMER
|
|
bool "Moxart timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
select CLKSRC_MMIO
|
|
help
|
|
Enables support for the Moxart timer.
|
|
|
|
config MXS_TIMER
|
|
bool "Mxs timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
select CLKSRC_MMIO
|
|
select STMP_DEVICE
|
|
help
|
|
Enables support for the Mxs timer.
|
|
|
|
config PRIMA2_TIMER
|
|
bool "Prima2 timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
select CLKSRC_MMIO
|
|
help
|
|
Enables support for the Prima2 timer.
|
|
|
|
config U300_TIMER
|
|
bool "U300 timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
depends on ARM
|
|
select CLKSRC_MMIO
|
|
help
|
|
Enables support for the U300 timer.
|
|
|
|
config NSPIRE_TIMER
|
|
bool "NSpire timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
select CLKSRC_MMIO
|
|
help
|
|
Enables support for the Nspire timer.
|
|
|
|
config KEYSTONE_TIMER
|
|
bool "Keystone timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
depends on ARM || ARM64
|
|
select CLKSRC_MMIO
|
|
help
|
|
Enables support for the Keystone timer.
|
|
|
|
config INTEGRATOR_AP_TIMER
|
|
bool "Integrator-ap timer driver" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
select CLKSRC_MMIO
|
|
help
|
|
Enables support for the Integrator-ap timer.
|
|
|
|
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 "Enable ARM architected timer event stream generation by default"
|
|
default y if ARM_ARCH_TIMER
|
|
depends on ARM_ARCH_TIMER
|
|
help
|
|
This option enables support by default 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 behaviour can also be
|
|
overridden on the command line using the
|
|
clocksource.arm_arch_timer.evtstream parameter.
|
|
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 FSL_ERRATUM_A008585
|
|
bool "Workaround for Freescale/NXP Erratum A-008585"
|
|
default y
|
|
depends on ARM_ARCH_TIMER && ARM64
|
|
help
|
|
This option enables a workaround for Freescale/NXP Erratum
|
|
A-008585 ("ARM generic timer may contain an erroneous
|
|
value"). The workaround will only be active if the
|
|
fsl,erratum-a008585 property is found in the timer node.
|
|
|
|
config ARM_GLOBAL_TIMER
|
|
bool "Support for the ARM global timer" if COMPILE_TEST
|
|
select CLKSRC_OF if OF
|
|
depends on ARM
|
|
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 "Support for the ARMv7M system time" if COMPILE_TEST
|
|
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 "Atmel ST timer support" if COMPILE_TEST
|
|
depends on GENERIC_CLOCKEVENTS
|
|
select CLKSRC_OF
|
|
select MFD_SYSCON
|
|
help
|
|
Support for the Atmel ST timer.
|
|
|
|
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 || ARM64
|
|
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 CLKSRC_JCORE_PIT
|
|
bool "J-Core PIT timer driver" if COMPILE_TEST
|
|
depends on OF
|
|
depends on GENERIC_CLOCKEVENTS
|
|
depends on HAS_IOMEM
|
|
select CLKSRC_MMIO
|
|
help
|
|
This enables build of clocksource and clockevent driver for
|
|
the integrated PIT in the J-Core synthesizable, open source SoC.
|
|
|
|
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" if COMPILE_TEST
|
|
depends on 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
|