diff --git a/patch/u-boot/u-boot-default/add-lime2-emmc.patch b/patch/u-boot/u-boot-default/add-lime2-emmc.patch
index 465acbc2b..269fc4854 100644
--- a/patch/u-boot/u-boot-default/add-lime2-emmc.patch
+++ b/patch/u-boot/u-boot-default/add-lime2-emmc.patch
@@ -7,7 +7,7 @@ index 0000000..8eb70ae
 +CONFIG_ARM=y
 +CONFIG_ARCH_SUNXI=y
 +CONFIG_MACH_SUN7I=y
-+CONFIG_DRAM_CLK=480
++CONFIG_DRAM_CLK=384
 +CONFIG_MMC0_CD_PIN="PH1"
 +CONFIG_MMC_SUNXI_SLOT_EXTRA=2
 +CONFIG_USB0_VBUS_PIN="PC17"
diff --git a/patch/u-boot/u-boot-default/lime2-dram-clk.patch b/patch/u-boot/u-boot-default/lime2-dram-clk.patch
new file mode 100644
index 000000000..1220e94e4
--- /dev/null
+++ b/patch/u-boot/u-boot-default/lime2-dram-clk.patch
@@ -0,0 +1,14 @@
+diff --git a/configs/A20-OLinuXino-Lime2_defconfig b/configs/A20-OLinuXino-Lime2_defconfig
+index cc5858e..55f578a 100644
+--- a/configs/A20-OLinuXino-Lime2_defconfig
++++ b/configs/A20-OLinuXino-Lime2_defconfig
+@@ -1,7 +1,7 @@
+ CONFIG_ARM=y
+ CONFIG_ARCH_SUNXI=y
+ CONFIG_MACH_SUN7I=y
+-CONFIG_DRAM_CLK=480
++CONFIG_DRAM_CLK=384
+ CONFIG_MMC0_CD_PIN="PH1"
+ CONFIG_USB0_VBUS_PIN="PC17"
+ CONFIG_USB0_VBUS_DET="PH5"
+
diff --git a/patch/u-boot/u-boot-dev/add-lime2-emmc.patch b/patch/u-boot/u-boot-dev/add-lime2-emmc.patch
index 465acbc2b..269fc4854 100644
--- a/patch/u-boot/u-boot-dev/add-lime2-emmc.patch
+++ b/patch/u-boot/u-boot-dev/add-lime2-emmc.patch
@@ -7,7 +7,7 @@ index 0000000..8eb70ae
 +CONFIG_ARM=y
 +CONFIG_ARCH_SUNXI=y
 +CONFIG_MACH_SUN7I=y
-+CONFIG_DRAM_CLK=480
++CONFIG_DRAM_CLK=384
 +CONFIG_MMC0_CD_PIN="PH1"
 +CONFIG_MMC_SUNXI_SLOT_EXTRA=2
 +CONFIG_USB0_VBUS_PIN="PC17"
diff --git a/patch/u-boot/u-boot-dev/lime2-dram-clk.patch b/patch/u-boot/u-boot-dev/lime2-dram-clk.patch
new file mode 100644
index 000000000..1220e94e4
--- /dev/null
+++ b/patch/u-boot/u-boot-dev/lime2-dram-clk.patch
@@ -0,0 +1,14 @@
+diff --git a/configs/A20-OLinuXino-Lime2_defconfig b/configs/A20-OLinuXino-Lime2_defconfig
+index cc5858e..55f578a 100644
+--- a/configs/A20-OLinuXino-Lime2_defconfig
++++ b/configs/A20-OLinuXino-Lime2_defconfig
+@@ -1,7 +1,7 @@
+ CONFIG_ARM=y
+ CONFIG_ARCH_SUNXI=y
+ CONFIG_MACH_SUN7I=y
+-CONFIG_DRAM_CLK=480
++CONFIG_DRAM_CLK=384
+ CONFIG_MMC0_CD_PIN="PH1"
+ CONFIG_USB0_VBUS_PIN="PC17"
+ CONFIG_USB0_VBUS_DET="PH5"
+