CRIS: Move common Kconfig variable ETRAX_RTC to arch independet Kconfig.
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index dfddd33..4a27ef3 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -259,6 +259,18 @@
source arch/cris/arch-v10/drivers/Kconfig
source arch/cris/arch-v32/drivers/Kconfig
+config ETRAX_RTC
+ bool "Real Time Clock support"
+ depends on ETRAX_I2C
+ help
+ Enables drivers for the Real-Time Clock battery-backed chips on
+ some products. The kernel reads the time when booting, and
+ the date can be set using ioctl(fd, RTC_SET_TIME, &rt) with rt a
+ rtc_time struct (see <file:include/asm-cris/rtc.h>) on the /dev/rtc
+ device. You can check the time with cat /proc/rtc, but
+ normal time reading should be done using libc function time and
+ friends.
+
choice
prompt "RTC chip"
depends on ETRAX_RTC
