diff --git a/arch/arm/mach-rockchip/px30/Kconfig b/arch/arm/mach-rockchip/px30/Kconfig
index 9f3ad4f623..82bbc1c86f 100644
--- a/arch/arm/mach-rockchip/px30/Kconfig
+++ b/arch/arm/mach-rockchip/px30/Kconfig
@@ -2,6 +2,11 @@ if ROCKCHIP_PX30
 
 config TARGET_EVB_PX30
 	bool "EVB_PX30"
+	help
+	  This target config option used for below listed px30 boards.
+
+	  EVB_PX30:
+	  * EVB_PX30 is an evaluation board for Rockchip PX30.
 
 config ROCKCHIP_BOOT_MODE_REG
 	default 0xff010200