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 TIMER_EARLY
  13         bool "Allow timer to be used early in U-Boot"
  14         depends on TIMER
  15         help
  16           In some cases the timer must be accessible before driver model is
  17           active. Examples include when using CONFIG_TRACE to trace U-Boot's
  18           execution before driver model is set up. Enable this option to
  19           use an early timer. These functions must be supported by your timer
  20           driver: timer_early_get_count() and timer_early_get_rate().
  21
  22 config ALTERA_TIMER
  23         bool "Altera timer support"
  24         depends on TIMER
  25         help
  26           Select this to enable a timer for Altera devices. Please find
  27           details on the "Embedded Peripherals IP User Guide" of Altera.
  28
  29 config SANDBOX_TIMER
  30         bool "Sandbox timer support"
  31         depends on SANDBOX && TIMER
  32         help
  33           Select this to enable an emulated timer for sandbox. It gets
  34           time from host os.
  35
  36 config X86_TSC_TIMER
  37         bool "x86 Time-Stamp Counter (TSC) timer support"
  38         depends on TIMER && X86
  39         default y if X86
  40         help
  41           Select this to enable Time-Stamp Counter (TSC) timer for x86.
  42
  43 config OMAP_TIMER
  44         bool "Omap timer support"
  45         depends on TIMER
  46         help
  47           Select this to enable an timer for Omap devices.
  48
  49 config AST_TIMER
  50         bool "Aspeed ast2400/ast2500 timer support"
  51         depends on TIMER
  52         default y if ARCH_ASPEED
  53         help
  54           Select this to enable timer for Aspeed ast2400/ast2500 devices.
  55           This is a simple sys timer driver, it is compatible with lib/time.c,
  56           but does not support any interrupts. Even though SoC has 8 hardware
  57           counters, they are all treated as a single device by this driver.
  58           This is mostly because they all share several registers which
  59           makes it difficult to completely separate them.
  60
  61 config STI_TIMER
  62         bool "STi timer support"
  63         depends on TIMER
  64         default y if ARCH_STI
  65         help
  66           Select this to enable a timer for STi devices.
  67
  68 config ARC_TIMER
  69         bool "ARC timer support"
  70         depends on TIMER && ARC && CLK
  71         help
  72           Select this to enable built-in ARC timers.
  73           ARC cores may have up to 2 built-in timers: timer0 and timer1,
  74           usually at least one of them exists. Either of them is supported
  75           in U-Boot.
  76
  77 config AG101P_TIMER
  78         bool "AG101P timer support"
  79         depends on TIMER && NDS32
  80         help
  81           Select this to enable a timer for AG01P devices.
  82
  83 config AE3XX_TIMER
  84         bool "AE3XX timer support"
  85         depends on TIMER && NDS32
  86         help
  87           Select this to enable a timer for AE3XX devices.
  88
  89 endmenu