diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
index f40b8ff57d25c11625bd7b679bfe8e6da38299af..92f9d32ce9bcd997fcc500b8986cd1e4f9379610 100644
--- a/board/sunxi/Kconfig
+++ b/board/sunxi/Kconfig
@@ -203,6 +203,7 @@ config DRAM_TYPE
 config DRAM_CLK
 	int "sunxi dram clock speed"
 	default 792 if MACH_SUN9I
+	default 648 if MACH_SUN8I_R40
 	default 312 if MACH_SUN6I || MACH_SUN8I
 	default 360 if MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
 	default 672 if MACH_SUN50I
@@ -224,6 +225,7 @@ config DRAM_ZQ
 	int "sunxi dram zq value"
 	default 123 if MACH_SUN4I || MACH_SUN5I || MACH_SUN6I || MACH_SUN8I
 	default 127 if MACH_SUN7I
+	default 3881979 if MACH_SUN8I_R40
 	default 4145117 if MACH_SUN9I
 	default 3881915 if MACH_SUN50I
 	---help---
@@ -233,6 +235,7 @@ config DRAM_ODT_EN
 	bool "sunxi dram odt enable"
 	default n if !MACH_SUN8I_A23
 	default y if MACH_SUN8I_A23
+	default y if MACH_SUN8I_R40
 	default y if MACH_SUN50I
 	---help---
 	Select this to enable dram odt (on die termination).