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Thomas Chouc8a7ba92015-10-09 13:46:34 +08001menu "Timer Support"
2
3config TIMER
Bin Meng435ae762015-11-13 00:11:14 -08004 bool "Enable driver model for timer drivers"
Thomas Chouc8a7ba92015-10-09 13:46:34 +08005 depends on DM
6 help
Bin Meng435ae762015-11-13 00:11:14 -08007 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
Thomas Chouc8a7ba92015-10-09 13:46:34 +08009 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
Simon Glassc95fec32016-02-24 09:14:49 -070012config 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
Thomas Choua54915d2015-10-22 22:28:53 +080022config ALTERA_TIMER
Bin Meng435ae762015-11-13 00:11:14 -080023 bool "Altera timer support"
Thomas Choua54915d2015-10-22 22:28:53 +080024 depends on TIMER
25 help
Bin Meng435ae762015-11-13 00:11:14 -080026 Select this to enable a timer for Altera devices. Please find
Thomas Choua54915d2015-10-22 22:28:53 +080027 details on the "Embedded Peripherals IP User Guide" of Altera.
28
Thomas Chou9961a0b2015-10-30 15:35:52 +080029config SANDBOX_TIMER
Bin Meng435ae762015-11-13 00:11:14 -080030 bool "Sandbox timer support"
Thomas Chou9961a0b2015-10-30 15:35:52 +080031 depends on SANDBOX && TIMER
32 help
33 Select this to enable an emulated timer for sandbox. It gets
34 time from host os.
35
Bin Meng7030f272015-11-13 00:11:24 -080036config 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
Mugunthan V Ndadf3132015-12-24 16:08:07 +053043config OMAP_TIMER
44 bool "Omap timer support"
45 depends on TIMER
46 help
47 Select this to enable an timer for Omap devices.
48
maxims@google.com4697abe2017-01-18 13:44:55 -080049config 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
Patrice Chotard347cb2e2017-02-21 13:37:05 +010061config 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
Vlad Zakharovad9b5f72017-03-21 14:49:47 +030068config 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
Thomas Chouc8a7ba92015-10-09 13:46:34 +080077endmenu