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| author | Vitja Makarov <vitja.makarov@gmail.com> | 2008-02-29 12:24:23 +0800 |
|---|---|---|
| committer | Bryan Wu <cooloney@kernel.org> | 2008-02-29 12:24:23 +0800 |
| commit | 8b5f79f9d7ee4f4edb0212886771c977476eb811 (patch) | |
| tree | 5c9928710ad8c2556b64cee56fea768ce5ac4ba7 /arch/blackfin/Kconfig | |
| parent | 3dc5063786b273f1aee545844f6bd4e9651ebffe (diff) | |
[Blackfin] arch: initial generic time and clock sources
This patch enables Hight-Res Timers and tickless kernel
Signed-off-by: Vitja Makarov <vitja.makarov@gmail.com>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/Kconfig')
| -rw-r--r-- | arch/blackfin/Kconfig | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index 2dd1f300a5c..a3cf9d0a528 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -47,10 +47,6 @@ config GENERIC_IRQ_PROBE bool default y -config GENERIC_TIME - bool - default n - config GENERIC_GPIO bool default y @@ -415,6 +411,30 @@ comment "Kernel Timer/Scheduler" source kernel/Kconfig.hz +config GENERIC_TIME + bool "Generic time" + default y + +config GENERIC_CLOCKEVENTS + bool "Generic clock events" + depends on GENERIC_TIME + default y + +config CYCLES_CLOCKSOURCE + bool "Use 'CYCLES' as a clocksource (EXPERIMENTAL)" + depends on EXPERIMENTAL + depends on GENERIC_CLOCKEVENTS + depends on !BFIN_SCRATCH_REG_CYCLES + default n + help + If you say Y here, you will enable support for using the 'cycles' + registers as a clock source. Doing so means you will be unable to + safely write to the 'cycles' register during runtime. You will + still be able to read it (such as for performance monitoring), but + writing the registers will most likely crash the kernel. + +source kernel/time/Kconfig + comment "Memory Setup" config MEM_SIZE |