dm: rtc: sandbox: Add a driver for the sandbox I2C RTC
Add a driver which communicates with the sandbox I2C emulation RTC device
and permits it to be used in U-Boot. This driver is very simple - it just
reads and writes selected I2C registers in the device.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index aeb705a..9077bb3 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -52,4 +52,7 @@
obj-$(CONFIG_RTC_RV3029) += rv3029.o
obj-$(CONFIG_RTC_RX8025) += rx8025.o
obj-$(CONFIG_RTC_S3C24X0) += s3c24x0_rtc.o
+ifdef CONFIG_DM_RTC
+obj-$(CONFIG_SANDBOX) += sandbox_rtc.o
+endif
obj-$(CONFIG_RTC_X1205) += x1205.o