工具链：linaro提供的gcc-linaro-6.1.1-2016.08-x86_64_arm-linux-gnueabi

要移植的kernel版本：linux-4.4

Tiny4412开发板硬件版本为：

  底板：  Tiny4412SDK 1312B

  核心板：Tiny4412 - 1306

diff --git a/arch/arm/boot/dts/exynos4412-tiny4412.dts b/arch/arm/boot/dts/exyno
index 4840bbd..048ae67 100644
--- a/arch/arm/boot/dts/exynos4412-tiny4412.dts
+++ b/arch/arm/boot/dts/exynos4412-tiny4412.dts
@@ -21,6 +21,7 @@ESCOD
index 70dea02..42b0d63 100644
--- a/Makefile
+++ b/Makefile
@@ -248,8 +248,11 @@ SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_6# "make" in the configured kernel build directory always uses that.# Default value for CROSS_COMPILE is not to prefix executables# Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
-ARCH           ?= $(SUBARCH)
-CROSS_COMPILE  ?= $(CONFIG_CROSS_COMPILE:"%"=%)
+#ARCH          ?= $(SUBARCH)
+#CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%)
+
+ARCH           ?= arm
+CROSS_COMPILE  ?= /usr/local/ARM-toolchian/gcc-linaro-6.1.1-2016.08-i686_arm-linux-gnueabi/bin/arm-linux-gnueabi-# Architecture as present in compile.hUTS_MACHINE    := $(ARCH)

diff --git a/arch/arm/boot/dts/exynos4412-tiny4412.dts b/arch/arm/boot/dts/exyno
index 4840bbd..048ae67 100644
--- a/arch/arm/boot/dts/exynos4412-tiny4412.dts
+++ b/arch/arm/boot/dts/exynos4412-tiny4412.dts
@@ -21,6 +21,7 @@chosen {stdout-path = &serial_0;
+        bootargs="root=/dev/ram0 rw rootfstype=ext4 console=ttySAC0,115200 init=/linuxrc earlyprintk";

        };memory {
@@ -78,7 +79,8 @@bus-width = <4>;pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>;pinctrl-names = "default";
-       status = "okay";
+   /* status = "okay";*/
+    status = "disabled";};&serial_0 {

make menuconfig

File systems --->;

    <*> Second extended fs support

Device Drivers

    SCSI device support --->;

        <*> SCSI disk support

    Block devices --->;

        <*>RAM block device support

        (16)Default number of RAM disks

        (8192) Default RAM disk size (kbytes) (修改为8M)

General setup --->;

    [*] Initial RAM filesystem and RAM disk (initramfs/initrd) support

root@ubuntu:/home/arm/linux-4.4# cat build.sh
#!/bin/bashecho "---------------"
echo "rm ./ uImage and dtb"
rm uImage exynos4412-tiny4412.dtbecho "make"
make uImage LOADADDR=0x40007000 -j4echo "make dtb"
make dtbsecho "backup config"
cp .config tiny4412_defconfigecho "copy uImage"
cp arch/arm/boot/uImage ./echo "copy dtb"
cp arch/arm/boot/dts/exynos4412-tiny4412.dtb ./echo "over"