4 bool "Enable driver model for timer drivers"
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.
13 bool "Allow timer to be used early in U-Boot"
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().
23 bool "Altera timer support"
26 Select this to enable a timer for Altera devices. Please find
27 details on the "Embedded Peripherals IP User Guide" of Altera.
30 bool "Sandbox timer support"
31 depends on SANDBOX && TIMER
33 Select this to enable an emulated timer for sandbox. It gets
37 bool "x86 Time-Stamp Counter (TSC) timer support"
38 depends on TIMER && X86
41 Select this to enable Time-Stamp Counter (TSC) timer for x86.
44 bool "Omap timer support"
47 Select this to enable an timer for Omap devices.
50 bool "Aspeed ast2400/ast2500 timer support"
52 default y if ARCH_ASPEED
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.