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https://github.com/AsahiLinux/u-boot
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0f4a395f78
ATCPIT100 is often used in AE3XX platform which is based on NDS32 architecture recently. But in the future Andestech will have AE250 platform which is embeded ATCPIT100 timer based on RISCV architecture. Signed-off-by: Rick Chen <rick@andestech.com> Reviewed-by: Simon Glass <sjg@chromium.org>
122 lines
3.7 KiB
Text
122 lines
3.7 KiB
Text
menu "Timer Support"
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config TIMER
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bool "Enable driver model for timer drivers"
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depends on DM
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help
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Enable driver model for timer access. It uses the same API as
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lib/time.c, but now implemented by the uclass. The first timer
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will be used. The timer is usually a 32 bits free-running up
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counter. There may be no real tick, and no timer interrupt.
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config SPL_TIMER
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bool "Enable driver model for timer drivers in SPL"
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depends on TIMER && SPL
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help
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Enable support for timer drivers in SPL. These can be used to get
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a timer value when in SPL, or perhaps for implementing a delay
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function. This enables the drivers in drivers/timer as part of an
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SPL build.
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config TPL_TIMER
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bool "Enable driver model for timer drivers in TPL"
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depends on TIMER && TPL
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help
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Enable support for timer drivers in TPL. These can be used to get
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a timer value when in TPL, or perhaps for implementing a delay
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function. This enables the drivers in drivers/timer as part of an
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TPL build.
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config TIMER_EARLY
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bool "Allow timer to be used early in U-Boot"
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depends on TIMER
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help
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In some cases the timer must be accessible before driver model is
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active. Examples include when using CONFIG_TRACE to trace U-Boot's
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execution before driver model is set up. Enable this option to
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use an early timer. These functions must be supported by your timer
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driver: timer_early_get_count() and timer_early_get_rate().
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config ALTERA_TIMER
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bool "Altera timer support"
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depends on TIMER
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help
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Select this to enable a timer for Altera devices. Please find
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details on the "Embedded Peripherals IP User Guide" of Altera.
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config ATMEL_PIT_TIMER
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bool "Atmel periodic interval timer support"
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depends on TIMER
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help
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Select this to enable a periodic interval timer for Atmel devices,
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it is designed to offer maximum accuracy and efficient management,
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even for systems with long response time.
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config SANDBOX_TIMER
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bool "Sandbox timer support"
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depends on SANDBOX && TIMER
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help
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Select this to enable an emulated timer for sandbox. It gets
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time from host os.
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config X86_TSC_TIMER
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bool "x86 Time-Stamp Counter (TSC) timer support"
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depends on TIMER && X86
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help
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Select this to enable Time-Stamp Counter (TSC) timer for x86.
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config OMAP_TIMER
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bool "Omap timer support"
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depends on TIMER
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help
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Select this to enable an timer for Omap devices.
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config AST_TIMER
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bool "Aspeed ast2400/ast2500 timer support"
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depends on TIMER
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default y if ARCH_ASPEED
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help
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Select this to enable timer for Aspeed ast2400/ast2500 devices.
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This is a simple sys timer driver, it is compatible with lib/time.c,
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but does not support any interrupts. Even though SoC has 8 hardware
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counters, they are all treated as a single device by this driver.
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This is mostly because they all share several registers which
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makes it difficult to completely separate them.
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config STI_TIMER
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bool "STi timer support"
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depends on TIMER
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default y if ARCH_STI
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help
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Select this to enable a timer for STi devices.
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config ARC_TIMER
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bool "ARC timer support"
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depends on TIMER && ARC && CLK
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help
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Select this to enable built-in ARC timers.
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ARC cores may have up to 2 built-in timers: timer0 and timer1,
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usually at least one of them exists. Either of them is supported
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in U-Boot.
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config AG101P_TIMER
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bool "AG101P timer support"
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depends on TIMER && NDS32
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help
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Select this to enable a timer for AG01P devices.
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config ATCPIT100_TIMER
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bool "ATCPIT100 timer support"
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depends on TIMER
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help
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Select this to enable a ATCPIT100 timer which will be embeded
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in AE3XX, AE250 boards.
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config ROCKCHIP_TIMER
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bool "Rockchip timer support"
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depends on TIMER
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help
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Select this to enable support for the timer found on
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Rockchip devices.
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endmenu
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