diff options
Diffstat (limited to 'drivers/clocksource/Kconfig')
| -rw-r--r-- | drivers/clocksource/Kconfig | 27 |
1 files changed, 10 insertions, 17 deletions
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig index fc5a389b95..598edc9a81 100644 --- a/drivers/clocksource/Kconfig +++ b/drivers/clocksource/Kconfig @@ -18,28 +18,21 @@ config CLOCKSOURCE_DIGIC bool depends on ARCH_DIGIC -config CLOCKSOURCE_DUMMY - bool "Enable dummy software-only clocksource" +config CLOCKSOURCE_DUMMY_RATE + int + prompt "dummy clocksource rate" + default 1000 help When porting barebox to a new SoC there might be a case of broken or absent clocksource. This causes barebox serial console to be non functional. - To solve the problem this software-only clocksource driver is used. - WARNING!!! This clocksource doesn't provide correct timing. - To adjust this clocksource please use CONFIG_CLOCKSOURCE_DUMMY_RATE. + To solve the problem barebox has built-in software-only clocksource. + The software-only clocksource is used only if no hardware clocksource + is registered. This can help if initialization order is wrong so that + the time functions are used before the real clocksource was initialized. + WARNING!!! Built-in software-only clocksource doesn't provide correct timing. + The option CONFIG_CLOCKSOURCE_DUMMY_RATE is used to adjust this clocksource. The bigger rate valuest makes clocksource "faster". - It's possible to add this clocksource unconditionally. - This clocksource starts very early (pure_initcall) so - real clocksource will take over. - This can help if initialization order is wrong so that - the time functions are used before the real clocksource - was initialized. - -config CLOCKSOURCE_DUMMY_RATE - int - prompt "dummy clocksource rate" - depends on CLOCKSOURCE_DUMMY - default 1000 config CLOCKSOURCE_MVEBU bool |