diff --git a/arch/mips/configs/ritmix-rzx50_defconfig b/arch/mips/configs/ritmix-rzx50_defconfig
index e6f10fb..3a2cf54 100644
--- a/arch/mips/configs/ritmix-rzx50_defconfig
+++ b/arch/mips/configs/ritmix-rzx50_defconfig
@@ -10,6 +10,7 @@
 CONFIG_AUTO_COMPLETE=y
 # CONFIG_DEFAULT_ENVIRONMENT is not set
 CONFIG_DEBUG_LL=y
+CONFIG_LONGHELP=y
 CONFIG_CMD_IOMEM=y
 CONFIG_CMD_MEMINFO=y
 CONFIG_CMD_BOOTM_SHOW_TYPE=y
@@ -36,6 +37,8 @@
 CONFIG_OFDEVICE=y
 # CONFIG_SPI is not set
 CONFIG_GPIO_JZ4740=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_JZ4740=y
 CONFIG_SHA1=y
 CONFIG_SHA224=y
 CONFIG_SHA256=y