drivers/timer/Kconfig

   1 menu "Timer Support"
   2
   3 config TIMER
   4         bool "Enable driver model for timer drivers"
   5         depends on DM
   6         help
   7           Enable driver model for timer access. It uses the same API as
   8           lib/time.c, but now implemented by the uclass. The first timer
   9           will be used. The timer is usually a 32 bits free-running up
  10           counter. There may be no real tick, and no timer interrupt.
  11
  12 config SPL_TIMER
  13         bool "Enable driver model for timer drivers in SPL"
  14         depends on TIMER && SPL
  15         help
  16           Enable support for timer drivers in SPL. These can be used to get
  17           a timer value when in SPL, or perhaps for implementing a delay
  18           function. This enables the drivers in drivers/timer as part of an
  19           SPL build.
  20
  21 config TPL_TIMER
  22         bool "Enable driver model for timer drivers in TPL"
  23         depends on TIMER && TPL
  24         help
  25           Enable support for timer drivers in TPL. These can be used to get
  26           a timer value when in TPL, or perhaps for implementing a delay
  27           function. This enables the drivers in drivers/timer as part of an
  28           TPL build.
  29
  30 config TIMER_EARLY
  31         bool "Allow timer to be used early in U-Boot"
  32         depends on TIMER
  33         help
  34           In some cases the timer must be accessible before driver model is
  35           active. Examples include when using CONFIG_TRACE to trace U-Boot's
  36           execution before driver model is set up. Enable this option to
  37           use an early timer. These functions must be supported by your timer
  38           driver: timer_early_get_count() and timer_early_get_rate().
  39
  40 config ALTERA_TIMER
  41         bool "Altera timer support"
  42         depends on TIMER
  43         help
  44           Select this to enable a timer for Altera devices. Please find
  45           details on the "Embedded Peripherals IP User Guide" of Altera.
  46
  47 config SANDBOX_TIMER
  48         bool "Sandbox timer support"
  49         depends on SANDBOX && TIMER
  50         help
  51           Select this to enable an emulated timer for sandbox. It gets
  52           time from host os.
  53
  54 config X86_TSC_TIMER
  55         bool "x86 Time-Stamp Counter (TSC) timer support"
  56         depends on TIMER && X86
  57         help
  58           Select this to enable Time-Stamp Counter (TSC) timer for x86.
  59
  60 config OMAP_TIMER
  61         bool "Omap timer support"
  62         depends on TIMER
  63         help
  64           Select this to enable an timer for Omap devices.
  65
  66 config AST_TIMER
  67         bool "Aspeed ast2400/ast2500 timer support"
  68         depends on TIMER
  69         default y if ARCH_ASPEED
  70         help
  71           Select this to enable timer for Aspeed ast2400/ast2500 devices.
  72           This is a simple sys timer driver, it is compatible with lib/time.c,
  73           but does not support any interrupts. Even though SoC has 8 hardware
  74           counters, they are all treated as a single device by this driver.
  75           This is mostly because they all share several registers which
  76           makes it difficult to completely separate them.
  77
  78 config STI_TIMER
  79         bool "STi timer support"
  80         depends on TIMER
  81         default y if ARCH_STI
  82         help
  83           Select this to enable a timer for STi devices.
  84
  85 config ARC_TIMER
  86         bool "ARC timer support"
  87         depends on TIMER && ARC && CLK
  88         help
  89           Select this to enable built-in ARC timers.
  90           ARC cores may have up to 2 built-in timers: timer0 and timer1,
  91           usually at least one of them exists. Either of them is supported
  92           in U-Boot.
  93
  94 config AG101P_TIMER
  95         bool "AG101P timer support"
  96         depends on TIMER && NDS32
  97         help
  98           Select this to enable a timer for AG01P devices.
  99
 100 config AE3XX_TIMER
 101         bool "AE3XX timer support"
 102         depends on TIMER && NDS32
 103         help
 104           Select this to enable a timer for AE3XX devices.
 105
 106 config ROCKCHIP_TIMER
 107         bool "Rockchip timer support"
 108         depends on TIMER
 109         help
 110           Select this to enable support for the timer found on
 111           Rockchip devices.
 112
 113 endmenu