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| author | Rick Chen <rickchen36@gmail.com> | 2017-12-11 10:53:15 +0300 |
|---|---|---|
| committer | Greentime Hu <greentime@andestech.com> | 2018-02-22 05:44:36 +0300 |
| commit | 35dbb74aa752cff90e8dac1a24ed2a452aed0251 (patch) | |
| tree | abc5f51bd1582b665b0b7ec5d8b180b61762ff66 /drivers/clocksource/Kconfig | |
| parent | eac8173e7b99b215a386391dc95f5e4d7e4d7085 (diff) | |
| download | linux-35dbb74aa752cff90e8dac1a24ed2a452aed0251.tar.xz | |
clocksource/drivers/atcpit100: Add andestech atcpit100 timer
ATCPIT100 is often used on the Andes architecture,
This timer provide 4 PIT channels. Each PIT channel is a
multi-function timer, can be configured as 32,16,8 bit timers
or PWM as well.
For system timer it will set channel 1 32-bit timer0 as clock
source and count downwards until underflow and restart again.
It also set channel 0 32-bit timer0 as clock event and count
downwards until condition match. It will generate an interrupt
for handling periodically.
Signed-off-by: Rick Chen <rickchen36@gmail.com>
Signed-off-by: Greentime Hu <green.hu@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Add andestech atcpit100 timer
Diffstat (limited to 'drivers/clocksource/Kconfig')
| -rw-r--r-- | drivers/clocksource/Kconfig | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig index b3b4ed9b6874..19d65fe0627e 100644 --- a/drivers/clocksource/Kconfig +++ b/drivers/clocksource/Kconfig @@ -591,4 +591,13 @@ config CLKSRC_ST_LPC Enable this option to use the Low Power controller timer as clocksource. +config ATCPIT100_TIMER + bool "ATCPIT100 timer driver" + depends on NDS32 || COMPILE_TEST + depends on HAS_IOMEM + select TIMER_OF + default NDS32 + help + This option enables support for the Andestech ATCPIT100 timers. + endmenu |