| Thomas Chou | fb798b1 | 2015-10-09 13:46:34 +0800 | [diff] [blame] | 1 | menu "Timer Support" |
| 2 | |
| 3 | config TIMER |
| Bin Meng | 8a7b864 | 2015-11-13 00:11:14 -0800 | [diff] [blame] | 4 | bool "Enable driver model for timer drivers" |
| Thomas Chou | fb798b1 | 2015-10-09 13:46:34 +0800 | [diff] [blame] | 5 | depends on DM |
| 6 | help |
| Bin Meng | 8a7b864 | 2015-11-13 00:11:14 -0800 | [diff] [blame] | 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 |
| Thomas Chou | fb798b1 | 2015-10-09 13:46:34 +0800 | [diff] [blame] | 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 | |
| Simon Glass | 32f6c17 | 2016-02-24 09:14:49 -0700 | [diff] [blame] | 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 | |
| Thomas Chou | 221d2ac | 2015-10-22 22:28:53 +0800 | [diff] [blame] | 22 | config ALTERA_TIMER |
| Bin Meng | 8a7b864 | 2015-11-13 00:11:14 -0800 | [diff] [blame] | 23 | bool "Altera timer support" |
| Thomas Chou | 221d2ac | 2015-10-22 22:28:53 +0800 | [diff] [blame] | 24 | depends on TIMER |
| 25 | help |
| Bin Meng | 8a7b864 | 2015-11-13 00:11:14 -0800 | [diff] [blame] | 26 | Select this to enable a timer for Altera devices. Please find |
| Thomas Chou | 221d2ac | 2015-10-22 22:28:53 +0800 | [diff] [blame] | 27 | details on the "Embedded Peripherals IP User Guide" of Altera. |
| 28 | |
| Thomas Chou | 7b059dc | 2015-10-30 15:35:52 +0800 | [diff] [blame] | 29 | config SANDBOX_TIMER |
| Bin Meng | 8a7b864 | 2015-11-13 00:11:14 -0800 | [diff] [blame] | 30 | bool "Sandbox timer support" |
| Thomas Chou | 7b059dc | 2015-10-30 15:35:52 +0800 | [diff] [blame] | 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 | |
| Bin Meng | b2aa4c5 | 2015-11-13 00:11:24 -0800 | [diff] [blame] | 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 | |
| Mugunthan V N | afae370 | 2015-12-24 16:08:07 +0530 | [diff] [blame] | 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 | |
| Thomas Chou | fb798b1 | 2015-10-09 13:46:34 +0800 | [diff] [blame] | 49 | endmenu |