diff --git a/configs/A20-OLinuXino-Lime2_defconfig b/configs/A20-OLinuXino-Lime2_defconfig
index f80b98a..17fd19d 100644
--- a/configs/A20-OLinuXino-Lime2_defconfig
+++ b/configs/A20-OLinuXino-Lime2_defconfig
@@ -5,3 +5,6 @@
 +S:CONFIG_ARCH_SUNXI=y
 +S:CONFIG_MACH_SUN7I=y
 +S:CONFIG_TARGET_A20_OLINUXINO_L2=y
++S:CONFIG_DRAM_CLK=480
++S:CONFIG_DRAM_ZQ=127
++S:CONFIG_DRAM_EMR1=4
diff --git a/configs/A20-OLinuXino-Lime_defconfig b/configs/A20-OLinuXino-Lime_defconfig
index d9e66b7..c8243a4 100644
--- a/configs/A20-OLinuXino-Lime_defconfig
+++ b/configs/A20-OLinuXino-Lime_defconfig
@@ -5,3 +5,6 @@
 +S:CONFIG_ARCH_SUNXI=y
 +S:CONFIG_MACH_SUN7I=y
 +S:CONFIG_TARGET_A20_OLINUXINO_L=y
++S:CONFIG_DRAM_CLK=480
++S:CONFIG_DRAM_ZQ=127
++S:CONFIG_DRAM_EMR1=4
diff --git a/configs/A20-OLinuXino_MICRO_defconfig b/configs/A20-OLinuXino_MICRO_defconfig
index 1c5a6f7..ac94c79 100644
--- a/configs/A20-OLinuXino_MICRO_defconfig
+++ b/configs/A20-OLinuXino_MICRO_defconfig
@@ -9,3 +9,6 @@
 +S:CONFIG_ARCH_SUNXI=y
 +S:CONFIG_MACH_SUN7I=y
 +S:CONFIG_TARGET_A20_OLINUXINO_M=y
++S:CONFIG_DRAM_CLK=384
++S:CONFIG_DRAM_ZQ=127
++S:CONFIG_DRAM_EMR1=4
diff --git a/configs/Bananapi_defconfig b/configs/Bananapi_defconfig
index 196f682..d94e08e 100644
--- a/configs/Bananapi_defconfig
+++ b/configs/Bananapi_defconfig
@@ -5,3 +5,6 @@
 +S:CONFIG_ARCH_SUNXI=y
 +S:CONFIG_MACH_SUN7I=y
 +S:CONFIG_TARGET_BANANAPI=y
++S:CONFIG_DRAM_CLK=432
++S:CONFIG_DRAM_ZQ=127
++S:CONFIG_DRAM_EMR1=4
diff --git a/configs/Bananapro_defconfig b/configs/Bananapro_defconfig
index 7f9ce13..02e4f3e 100644
--- a/configs/Bananapro_defconfig
+++ b/configs/Bananapro_defconfig
@@ -7,3 +7,6 @@
 +S:CONFIG_ARCH_SUNXI=y
 +S:CONFIG_MACH_SUN7I=y
 +S:CONFIG_TARGET_BANANAPRO=y
++S:CONFIG_DRAM_CLK=432
++S:CONFIG_DRAM_ZQ=127
++S:CONFIG_DRAM_EMR1=4
diff --git a/configs/Cubieboard2_defconfig b/configs/Cubieboard2_defconfig
index 7e7a1ca..ef5b43a 100644
--- a/configs/Cubieboard2_defconfig
+++ b/configs/Cubieboard2_defconfig
@@ -5,3 +5,6 @@
 +S:CONFIG_ARCH_SUNXI=y
 +S:CONFIG_MACH_SUN7I=y
 +S:CONFIG_TARGET_CUBIEBOARD2=y
++S:CONFIG_DRAM_CLK=480
++S:CONFIG_DRAM_ZQ=127
++S:CONFIG_DRAM_EMR1=4
diff --git a/configs/Cubietruck_defconfig b/configs/Cubietruck_defconfig
index bc44410..f51c491 100644
--- a/configs/Cubietruck_defconfig
+++ b/configs/Cubietruck_defconfig
@@ -6,3 +6,6 @@
 +S:CONFIG_ARCH_SUNXI=y
 +S:CONFIG_MACH_SUN7I=y
 +S:CONFIG_TARGET_CUBIETRUCK=y
++S:CONFIG_DRAM_CLK=432
++S:CONFIG_DRAM_ZQ=127
++S:CONFIG_DRAM_EMR1=4
diff --git a/configs/Linksprite_pcDuino3_defconfig b/configs/Linksprite_pcDuino3_defconfig
index a26ff0a..64e01c8 100644
--- a/configs/Linksprite_pcDuino3_defconfig
+++ b/configs/Linksprite_pcDuino3_defconfig
@@ -5,3 +5,6 @@
 +S:CONFIG_ARCH_SUNXI=y
 +S:CONFIG_MACH_SUN7I=y
 +S:CONFIG_TARGET_PCDUINO3=y
++S:CONFIG_DRAM_CLK=480
++S:CONFIG_DRAM_ZQ=122
++S:CONFIG_DRAM_EMR1=4
diff --git a/configs/Linksprite_pcDuino3_fdt_defconfig b/configs/Linksprite_pcDuino3_fdt_defconfig
index a33f3a7..49718c7 100644
--- a/configs/Linksprite_pcDuino3_fdt_defconfig
+++ b/configs/Linksprite_pcDuino3_fdt_defconfig
@@ -9,3 +9,6 @@
 +S:CONFIG_ARCH_SUNXI=y
 +S:CONFIG_MACH_SUN7I=y
 +S:CONFIG_TARGET_PCDUINO3=y
++S:CONFIG_DRAM_CLK=480
++S:CONFIG_DRAM_ZQ=122
++S:CONFIG_DRAM_EMR1=4
diff --git a/configs/MSI_Primo73_defconfig b/configs/MSI_Primo73_defconfig
index d731053..6628184 100644
--- a/configs/MSI_Primo73_defconfig
+++ b/configs/MSI_Primo73_defconfig
@@ -11,3 +11,6 @@
 +S:CONFIG_ARCH_SUNXI=y
 +S:CONFIG_MACH_SUN7I=y
 +S:CONFIG_TARGET_MSI_PRIMO73=y
++S:CONFIG_DRAM_CLK=384
++S:CONFIG_DRAM_ZQ=127
++S:CONFIG_DRAM_EMR1=4
diff --git a/configs/Mele_M3_defconfig b/configs/Mele_M3_defconfig
index 141d565..7f1710a 100644
--- a/configs/Mele_M3_defconfig
+++ b/configs/Mele_M3_defconfig
@@ -8,3 +8,6 @@
 +S:CONFIG_ARCH_SUNXI=y
 +S:CONFIG_MACH_SUN7I=y
 +S:CONFIG_TARGET_MELE_M3=y
++S:CONFIG_DRAM_CLK=384
++S:CONFIG_DRAM_ZQ=127
++S:CONFIG_DRAM_EMR1=4