drivers: rtc: add max313xx series rtc driver
Adding support for Analog Devices MAX313XX series RTCs.
This is ported from the Linux driver and adapted for use in u-boot.
Notable differences are
- handling of tm_year and tm_mon differ
- clock source support is omitted
- hwmon support for the MAX31328 and MAX31343 is omitted
- rtc_ops->reset is added
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index 2141c3d..cbace25 100644
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -269,6 +269,7 @@
CONFIG_RESET_SYSCON=y
CONFIG_RESET_SCMI=y
CONFIG_DM_RTC=y
+CONFIG_RTC_MAX313XX=y
CONFIG_RTC_RV8803=y
CONFIG_RTC_HT1380=y
CONFIG_SCSI=y