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authorXianglong Du <Xianglong.Du@csr.com>2013-07-03 15:08:04 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-03 16:08:01 -0700
commite88b815e011bcacb7066f1156ce390f6b0adc9df (patch)
tree99f50a40cdb0d506885be516f5a2abea4c164fd5 /drivers/rtc/Kconfig
parent061d2a3e39c4686039519509d69cd31c7841f666 (diff)
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op-kernel-dev-e88b815e011bcacb7066f1156ce390f6b0adc9df.tar.gz
drivers/rtc/rtc-sirfsoc.c: add rtc drivers for CSR SiRFprimaII and SiRFatlasVI
On CSR SiRFprimaII/atlasVI, there is a programmable 16-bit divider (RTC_DIV) that divides the input 32.768KHz clock to the frequency that users need (E.g. 1 Hz). The divided real-time clock will be used to drive a 32-bit counter (RTC_COUNTER) that provides users with the actual time. In each cycle of the divided real-time clock, there is a Hertz interrupt generated to the RISC. Users can also configure an alarm (RTC_ALARM). When RTC_COUNTER matches the alarm, there will be an alarm interrupt generated to the RISC. The system RTC can generate an alarm wake-up signal to notify the power controller to wake up from power saving mode. Signed-off-by: Xianglong Du <Xianglong.Du@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rtc/Kconfig')
-rw-r--r--drivers/rtc/Kconfig7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 8009e5d..9e3498b 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -1242,6 +1242,13 @@ config RTC_DRV_SNVS
This driver can also be built as a module, if so, the module
will be called "rtc-snvs".
+config RTC_DRV_SIRFSOC
+ tristate "SiRFSOC RTC"
+ depends on ARCH_SIRF
+ help
+ Say "yes" here to support the real time clock on SiRF SOC chips.
+ This driver can also be built as a module called rtc-sirfsoc.
+
comment "HID Sensor RTC drivers"
config RTC_DRV_HID_SENSOR_TIME
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