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Diffstat (limited to '')
| -rw-r--r-- | drivers/clocksource/Kconfig | 724 |
1 files changed, 724 insertions, 0 deletions
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig new file mode 100644 index 000000000..4469e7f55 --- /dev/null +++ b/drivers/clocksource/Kconfig @@ -0,0 +1,724 @@ +# SPDX-License-Identifier: GPL-2.0-only +menu "Clock Source drivers" + depends on GENERIC_CLOCKEVENTS + +config TIMER_OF + bool + select TIMER_PROBE + +config TIMER_ACPI + bool + select TIMER_PROBE + +config TIMER_PROBE + bool + +config CLKSRC_I8253 + bool + +config CLKEVT_I8253 + bool + +config I8253_LOCK + bool + +config OMAP_DM_SYSTIMER + bool + select TIMER_OF + +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 + select CLKSRC_MMIO + help + Enables the support for the BCM2835 timer driver. + +config BCM_KONA_TIMER + bool "BCM mobile timer driver" if COMPILE_TEST + select CLKSRC_MMIO + help + Enables the support for the BCM Kona mobile timer driver. + +config DAVINCI_TIMER + bool "Texas Instruments DaVinci timer driver" if COMPILE_TEST + help + Enables the support for the TI DaVinci timer driver. + +config DIGICOLOR_TIMER + bool "Digicolor timer driver" if COMPILE_TEST + select CLKSRC_MMIO + depends on HAS_IOMEM + help + Enables the support for the digicolor timer driver. + +config OMAP_DM_TIMER + bool "OMAP dual-mode timer driver" if ARCH_K3 || COMPILE_TEST + default y if ARCH_K3 + select TIMER_OF + help + Enables the support for the TI dual-mode timer driver. + +config DW_APB_TIMER + bool "DW APB timer driver" if COMPILE_TEST + help + Enables the support for the dw_apb timer. + +config DW_APB_TIMER_OF + bool + select DW_APB_TIMER + select TIMER_OF + +config FTTMR010_TIMER + bool "Faraday Technology timer driver" if COMPILE_TEST + depends on HAS_IOMEM + select CLKSRC_MMIO + select TIMER_OF + select MFD_SYSCON + help + Enables support for the Faraday Technology timer block + FTTMR010. + +config IXP4XX_TIMER + bool "Intel XScale IXP4xx timer driver" if COMPILE_TEST + depends on HAS_IOMEM + select CLKSRC_MMIO + select TIMER_OF + help + Enables support for the Intel XScale IXP4xx SoC timer. + +config ROCKCHIP_TIMER + bool "Rockchip timer driver" if COMPILE_TEST + depends on ARM || ARM64 + select TIMER_OF + select CLKSRC_MMIO + 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 TIMER_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 + 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 TIMER_OF + select CLKSRC_MMIO + help + Enables the support for the Orion timer driver + +config OWL_TIMER + bool "Owl timer driver" if COMPILE_TEST + select CLKSRC_MMIO + help + Enables the support for the Actions Semi Owl timer driver. + +config RDA_TIMER + bool "RDA timer driver" if COMPILE_TEST + select CLKSRC_MMIO + select TIMER_OF + help + Enables the support for the RDA Micro timer driver. + +config SUN4I_TIMER + bool "Sun4i timer driver" if COMPILE_TEST + depends on HAS_IOMEM + select CLKSRC_MMIO + select TIMER_OF + 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 + select TIMER_OF + depends on ARCH_TEGRA || COMPILE_TEST + help + Enables support for the Tegra driver. + +config TEGRA186_TIMER + bool "NVIDIA Tegra186 timer driver" + depends on ARCH_TEGRA || COMPILE_TEST + depends on WATCHDOG && WATCHDOG_CORE + help + Enables support for the timers and watchdogs found on NVIDIA + Tegra186 and later SoCs. + +config VT8500_TIMER + bool "VT8500 timer driver" if COMPILE_TEST + depends on HAS_IOMEM + help + Enables support for the VT8500 driver. + +config NPCM7XX_TIMER + bool "NPCM7xx timer driver" if COMPILE_TEST + depends on HAS_IOMEM + select TIMER_OF + select CLKSRC_MMIO + help + Enable 24-bit TIMER0 and TIMER1 counters in the NPCM7xx architecture, + where TIMER0 serves as clockevent and TIMER1 serves as clocksource. + +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 + select CLKSRC_MMIO + select TIMER_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_DBX500_PRCMU + bool "Clocksource PRCMU Timer" if COMPILE_TEST + depends on HAS_IOMEM + help + Use the always on PRCMU Timer as clocksource. + +config CLPS711X_TIMER + bool "Cirrus Logic timer driver" if COMPILE_TEST + select CLKSRC_MMIO + help + Enables support for the Cirrus Logic PS711 timer. + +config MXS_TIMER + bool "MXS timer driver" if COMPILE_TEST + select CLKSRC_MMIO + select STMP_DEVICE + help + Enables support for the MXS timer. + +config NSPIRE_TIMER + bool "NSpire timer driver" if COMPILE_TEST + select CLKSRC_MMIO + help + Enables support for the Nspire timer. + +config KEYSTONE_TIMER + bool "Keystone timer driver" if COMPILE_TEST + 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 + select CLKSRC_MMIO + help + Enables support for the Integrator-AP timer. + +config CLKSRC_LPC32XX + bool "Clocksource for LPC32XX" if COMPILE_TEST + depends on HAS_IOMEM + depends on ARM + select CLKSRC_MMIO + select TIMER_OF + help + Support for the LPC32XX clocksource. + +config CLKSRC_PISTACHIO + bool "Clocksource for Pistachio SoC" + depends on HAS_IOMEM + depends on MIPS || COMPILE_TEST + select TIMER_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 TIMER_OF if OF + help + This option enables support for Texas Instruments 32.768 Hz clocksource + available on many OMAP-like platforms. + +config CLKSRC_STM32 + bool "Clocksource for STM32 SoCs" if !ARCH_STM32 + depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST) + select CLKSRC_MMIO + select TIMER_OF + +config CLKSRC_STM32_LP + bool "Low power clocksource for STM32 SoCs" + depends on MFD_STM32_LPTIMER || COMPILE_TEST + +config CLKSRC_MPS2 + bool "Clocksource for MPS2 SoCs" if COMPILE_TEST + depends on GENERIC_SCHED_CLOCK + select CLKSRC_MMIO + select TIMER_OF + +config ARC_TIMERS + bool "Support for 32-bit TIMERn counters in ARC Cores" if COMPILE_TEST + depends on GENERIC_SCHED_CLOCK + select TIMER_OF + help + These are legacy 32-bit TIMER0 and TIMER1 counters found on all ARC cores + (ARC700 as well as ARC HS38). + TIMER0 serves as clockevent while TIMER1 provides clocksource. + +config ARC_TIMERS_64BIT + bool "Support for 64-bit counters in ARC HS38 cores" if COMPILE_TEST + depends on ARC_TIMERS + select TIMER_OF + help + This enables 2 different 64-bit timers: RTC (for UP) and GFRC (for SMP). + RTC is implemented inside the core, while GFRC sits outside the core in + ARConnect IP block. Driver automatically picks one of them for clocksource + as appropriate. + +config ARM_ARCH_TIMER + bool + select TIMER_OF if OF + select TIMER_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 ARM_ARCH_TIMER_OOL_WORKAROUND + bool + +config FSL_ERRATUM_A008585 + bool "Workaround for Freescale/NXP Erratum A-008585" + default y + depends on ARM_ARCH_TIMER && ARM64 + select ARM_ARCH_TIMER_OOL_WORKAROUND + 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 HISILICON_ERRATUM_161010101 + bool "Workaround for Hisilicon Erratum 161010101" + default y + select ARM_ARCH_TIMER_OOL_WORKAROUND + depends on ARM_ARCH_TIMER && ARM64 + help + This option enables a workaround for Hisilicon Erratum + 161010101. The workaround will be active if the hisilicon,erratum-161010101 + property is found in the timer node. + +config ARM64_ERRATUM_858921 + bool "Workaround for Cortex-A73 erratum 858921" + default y + select ARM_ARCH_TIMER_OOL_WORKAROUND + depends on ARM_ARCH_TIMER && ARM64 + help + This option enables a workaround applicable to Cortex-A73 + (all versions), whose counter may return incorrect values. + The workaround will be dynamically enabled when an affected + core is detected. + +config SUN50I_ERRATUM_UNKNOWN1 + bool "Workaround for Allwinner A64 erratum UNKNOWN1" + default y + depends on ARM_ARCH_TIMER && ARM64 && ARCH_SUNXI + select ARM_ARCH_TIMER_OOL_WORKAROUND + help + This option enables a workaround for instability in the timer on + the Allwinner A64 SoC. The workaround will only be active if the + allwinner,erratum-unknown1 property is found in the timer node. + +config ARM_GLOBAL_TIMER + bool "Support for the ARM global timer" if COMPILE_TEST + select TIMER_OF if OF + depends on ARM + help + This option enables support for the ARM global timer unit. + +config ARM_GT_INITIAL_PRESCALER_VAL + int "ARM global timer initial prescaler value" + default 2 if ARCH_ZYNQ + default 1 + depends on ARM_GLOBAL_TIMER + help + When the ARM global timer initializes, its current rate is declared + to the kernel and maintained forever. Should its parent clock + change, the driver tries to fix the timer's internal prescaler. + On some machs (i.e. Zynq) the initial prescaler value thus poses + bounds about how much the parent clock is allowed to decrease or + increase wrt the initial clock value. + This affects CPU_FREQ max delta from the initial frequency. + +config ARM_TIMER_SP804 + bool "Support for Dual Timer SP804 module" if COMPILE_TEST + depends on GENERIC_SCHED_CLOCK && HAVE_CLK + select CLKSRC_MMIO + select TIMER_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 TIMER_OF if OF + select CLKSRC_MMIO + help + This option enables support for the ARMv7M system timer unit. + +config ATMEL_PIT + bool "Atmel PIT support" if COMPILE_TEST + depends on HAS_IOMEM + select TIMER_OF if OF + help + Support for the Periodic Interval Timer found on Atmel SoCs. + +config ATMEL_ST + bool "Atmel ST timer support" if COMPILE_TEST + depends on HAS_IOMEM + select TIMER_OF + select MFD_SYSCON + help + Support for the Atmel ST timer. + +config ATMEL_TCB_CLKSRC + bool "Atmel TC Block timer driver" if COMPILE_TEST + depends on ARM && HAS_IOMEM + select TIMER_OF if OF + help + Support for Timer Counter Blocks on Atmel SoCs. + +config CLKSRC_EXYNOS_MCT + bool "Exynos multi core timer driver" if COMPILE_TEST + depends on ARM || ARM64 + depends on ARCH_ARTPEC || ARCH_EXYNOS || COMPILE_TEST + 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 HAS_IOMEM + depends on ARCH_EXYNOS || ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || COMPILE_TEST + 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 HAS_IOMEM + select CLKSRC_MMIO + help + Support for Freescale FlexTimer Module (FTM) timer. + +config VF_PIT_TIMER + bool + select CLKSRC_MMIO + help + Support for Periodic Interrupt Timer on Freescale Vybrid Family SoCs. + +config OXNAS_RPS_TIMER + bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST + select TIMER_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 HAS_IOMEM + select TIMER_OF + select CLKSRC_MMIO + help + Support for Mediatek timer driver. + +config SPRD_TIMER + bool "Spreadtrum timer driver" if EXPERT + depends on HAS_IOMEM + depends on (ARCH_SPRD || COMPILE_TEST) + default ARCH_SPRD + select TIMER_OF + help + Enables support for the Spreadtrum 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 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 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 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 RENESAS_OSTM + bool "Renesas OSTM timer driver" + depends on ARCH_RENESAS || COMPILE_TEST + select CLKSRC_MMIO + select TIMER_OF + help + Enables the support for the Renesas OSTM. + +config SH_TIMER_TMU + bool "Renesas TMU timer driver" if COMPILE_TEST + 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 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 TIMER_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 + select TIMER_OF + default y if (ARCH_VEXPRESS || ARCH_VERSATILE) && ARM + help + This option enables clock source based on free running + counter available in the "System Registers" block of + ARM Versatile and Versatile Express reference platforms. + +config CLKSRC_MIPS_GIC + bool + depends on MIPS_GIC + select CLOCKSOURCE_WATCHDOG + select TIMER_OF + +config CLKSRC_PXA + bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST + depends on HAS_IOMEM + select CLKSRC_MMIO + help + This enables OST0 support available on PXA and SA-11x0 + platforms. + +config CLKSRC_IMX_GPT + bool "Clocksource using i.MX GPT" if COMPILE_TEST + depends on (ARM || ARM64) && HAVE_CLK + select CLKSRC_MMIO + +config CLKSRC_IMX_TPM + bool "Clocksource using i.MX TPM" if COMPILE_TEST + depends on (ARM || ARM64) && HAVE_CLK + select CLKSRC_MMIO + select TIMER_OF + help + Enable this option to use IMX Timer/PWM Module (TPM) timer as + clocksource. + +config TIMER_IMX_SYS_CTR + bool "i.MX system counter timer" if COMPILE_TEST + select TIMER_OF + help + Enable this option to use i.MX system counter timer as a + clockevent. + +config CLKSRC_ST_LPC + bool "Low power clocksource found in the LPC" if COMPILE_TEST + select TIMER_OF if OF + depends on HAS_IOMEM + select CLKSRC_MMIO + help + Enable this option to use the Low Power controller timer + as clocksource. + +config GXP_TIMER + bool "GXP timer driver" if COMPILE_TEST && !ARCH_HPE + default ARCH_HPE + select TIMER_OF if OF + help + Provides a driver for the timer control found on HPE + GXP SOCs. This is required for all GXP SOCs. + +config RISCV_TIMER + bool "Timer for the RISC-V platform" if COMPILE_TEST + depends on GENERIC_SCHED_CLOCK && RISCV && RISCV_SBI + select TIMER_PROBE + select TIMER_OF + help + This enables the per-hart timer built into all RISC-V systems, which + is accessed via both the SBI and the rdcycle instruction. This is + required for all RISC-V systems. + +config CLINT_TIMER + bool "CLINT Timer for the RISC-V platform" if COMPILE_TEST + depends on GENERIC_SCHED_CLOCK && RISCV + select TIMER_PROBE + select TIMER_OF + help + This option enables the CLINT timer for RISC-V systems. The CLINT + driver is usually used for NoMMU RISC-V systems. + +config CSKY_MP_TIMER + bool "SMP Timer for the C-SKY platform" if COMPILE_TEST + depends on CSKY + select TIMER_OF + help + Say yes here to enable C-SKY SMP timer driver used for C-SKY SMP + system. + csky,mptimer is not only used in SMP system, it also could be used in + single core system. It's not a mmio reg and it uses mtcr/mfcr instruction. + +config GX6605S_TIMER + bool "Gx6605s SOC system timer driver" if COMPILE_TEST + depends on CSKY + select CLKSRC_MMIO + select TIMER_OF + help + This option enables support for gx6605s SOC's timer. + +config MILBEAUT_TIMER + bool "Milbeaut timer driver" if COMPILE_TEST + depends on OF + depends on ARM + select TIMER_OF + select CLKSRC_MMIO + help + Enables the support for Milbeaut timer driver. + +config MSC313E_TIMER + bool "MSC313E timer driver" if COMPILE_TEST + select TIMER_OF + select CLKSRC_MMIO + help + Enables support for the MStar MSC313E timer driver. + This provides access to multiple interrupt generating + programmable 32-bit free running incrementing counters. + +config INGENIC_TIMER + bool "Clocksource/timer using the TCU in Ingenic JZ SoCs" + default MACH_INGENIC + depends on MIPS || COMPILE_TEST + depends on COMMON_CLK + select MFD_SYSCON + select TIMER_OF + select IRQ_DOMAIN + help + Support for the timer/counter unit of the Ingenic JZ SoCs. + +config INGENIC_SYSOST + bool "Clocksource/timer using the SYSOST in Ingenic X SoCs" + depends on MIPS || COMPILE_TEST + depends on COMMON_CLK + select MFD_SYSCON + select TIMER_OF + select IRQ_DOMAIN + help + Support for the SYSOST of the Ingenic X Series SoCs. + +config INGENIC_OST + bool "Clocksource using the OST in Ingenic JZ SoCs" + depends on MIPS || COMPILE_TEST + depends on COMMON_CLK + select MFD_SYSCON + help + Support for the Operating System Timer of the Ingenic JZ SoCs. + +config MICROCHIP_PIT64B + bool "Microchip PIT64B support" + depends on OF || COMPILE_TEST + select TIMER_OF + help + This option enables Microchip PIT64B timer for Atmel + based system. It supports the oneshot, the periodic + modes and high resolution. It is used as a clocksource + and a clockevent. + +config GOLDFISH_TIMER + bool "Clocksource using goldfish-rtc" + depends on M68K || COMPILE_TEST + depends on RTC_DRV_GOLDFISH + help + Support for the timer/counter of goldfish-rtc + +endmenu |