projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| c8a7ba9e TC |
1 | menu "Timer Support" |
| 2 | ||
| 3 | config TIMER | |
| 435ae76e | 4 | bool "Enable driver model for timer drivers" |
| c8a7ba9e TC |
5 | depends on DM |
| 6 | help | |
| 435ae76e BM |
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 | |
| c8a7ba9e TC |
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 | ||
| c95fec31 SG |
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 | ||
| a54915d8 | 22 | config ALTERA_TIMER |
| 435ae76e | 23 | bool "Altera timer support" |
| a54915d8 TC |
24 | depends on TIMER |
| 25 | help | |
| 435ae76e | 26 | Select this to enable a timer for Altera devices. Please find |
| a54915d8 TC |
27 | details on the "Embedded Peripherals IP User Guide" of Altera. |
| 28 | ||
| 9961a0b6 | 29 | config SANDBOX_TIMER |
| 435ae76e | 30 | bool "Sandbox timer support" |
| 9961a0b6 TC |
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 | ||
| 7030f27e BM |
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 | ||
| dadf3137 M |
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 | ||
| 4697abea | 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 | ||
| c8a7ba9e | 61 | endmenu |