menu "Timer Support" config TIMER bool "Enable driver model for timer drivers" depends on DM help Enable driver model for timer access. It uses the same API as lib/time.c, but now implemented by the uclass. The first timer will be used. The timer is usually a 32 bits free-running up counter. There may be no real tick, and no timer interrupt. config SPL_TIMER bool "Enable driver model for timer drivers in SPL" depends on TIMER && SPL help Enable support for timer drivers in SPL. These can be used to get a timer value when in SPL, or perhaps for implementing a delay function. This enables the drivers in drivers/timer as part of an SPL build. config TPL_TIMER bool "Enable driver model for timer drivers in TPL" depends on TIMER && TPL help Enable support for timer drivers in TPL. These can be used to get a timer value when in TPL, or perhaps for implementing a delay function. This enables the drivers in drivers/timer as part of an TPL build. config TIMER_EARLY bool "Allow timer to be used early in U-Boot" depends on TIMER help In some cases the timer must be accessible before driver model is active. Examples include when using CONFIG_TRACE to trace U-Boot's execution before driver model is set up. Enable this option to use an early timer. These functions must be supported by your timer driver: timer_early_get_count() and timer_early_get_rate(). config ALTERA_TIMER bool "Altera timer support" depends on TIMER help Select this to enable a timer for Altera devices. Please find details on the "Embedded Peripherals IP User Guide" of Altera. config ATMEL_PIT_TIMER bool "Atmel periodic interval timer support" depends on TIMER help Select this to enable a periodic interval timer for Atmel devices, it is designed to offer maximum accuracy and efficient management, even for systems with long response time. config SANDBOX_TIMER bool "Sandbox timer support" depends on SANDBOX && TIMER help Select this to enable an emulated timer for sandbox. It gets time from host os. config X86_TSC_TIMER bool "x86 Time-Stamp Counter (TSC) timer support" depends on TIMER && X86 help Select this to enable Time-Stamp Counter (TSC) timer for x86. config OMAP_TIMER bool "Omap timer support" depends on TIMER help Select this to enable an timer for Omap devices. config AST_TIMER bool "Aspeed ast2400/ast2500 timer support" depends on TIMER default y if ARCH_ASPEED help Select this to enable timer for Aspeed ast2400/ast2500 devices. This is a simple sys timer driver, it is compatible with lib/time.c, but does not support any interrupts. Even though SoC has 8 hardware counters, they are all treated as a single device by this driver. This is mostly because they all share several registers which makes it difficult to completely separate them. config STI_TIMER bool "STi timer support" depends on TIMER default y if ARCH_STI help Select this to enable a timer for STi devices. config ARC_TIMER bool "ARC timer support" depends on TIMER && ARC && CLK help Select this to enable built-in ARC timers. ARC cores may have up to 2 built-in timers: timer0 and timer1, usually at least one of them exists. Either of them is supported in U-Boot. config AG101P_TIMER bool "AG101P timer support" depends on TIMER && NDS32 help Select this to enable a timer for AG01P devices. config AE3XX_TIMER bool "AE3XX timer support" depends on TIMER && NDS32 help Select this to enable a timer for AE3XX devices. config ROCKCHIP_TIMER bool "Rockchip timer support" depends on TIMER help Select this to enable support for the timer found on Rockchip devices. endmenu