1 files changed, 11 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index 3663f71fd913..fbdae8377b71 100644
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -321,6 +321,17 @@ config OF_RTC
           Uses information from the OF or flattened device tree to instantiate
           platform devices for direct mapped RTC chips like the DS1742 or DS1743.
 
+config GEN_RTC
+        bool "Use the platform RTC operations from user space"
+        select RTC_CLASS
+        select RTC_DRV_GENERIC
+        help
+          This option provides backwards compatibility with the old gen_rtc.ko
+          module that was traditionally used for old PowerPC machines.
+          Platforms should migrate to enabling the RTC_DRV_GENERIC by hand
+          replacing their get_rtc_time/set_rtc_time callbacks with
+          a proper RTC device driver.
+
 config SIMPLE_GPIO
         bool "Support for simple, memory-mapped GPIO controllers"
         depends on PPC