Differences

This shows you the differences between two versions of the page.

--- en:c2_building_kernel [2016/02/26 18:13]
brian.kim [Toolchain (4.9.2)]
+++ en:c2_building_kernel [2017/02/06 18:25] (current)
codewalker [Checkout]
@@ Line 1: / Line 1: @@
-====== Installing required packages ======
+====== Kernel ======
+This page introduce how you can download and compile the Linux kernel for **ODROID-C2**.
+===== Cross Compile - HOST-PC/Ubuntu =====
+==== Installing required packages ====
 You will need install required packages before you start to build Linux kernel on your Ubuntu desktop.
 <code>
 $ sudo apt-get update
-$ sudo apt-get install git lzop build-essential gcc libncurses5-dev
+$ sudo apt-get install git lzop build-essential gcc libncurses5-dev libc6-i386 lib32stdc++6 zlib1g:i386
 </code>
-====== Kernel ======
-This page introduce how you can download and compile the Linux kernel for **ODROID-C2**.
+==== Toolchain (4.9.2) ====
-===== Toolchain (4.9.2)=====
 Click one of the site to download toolchain to build Linux kernel.
-  * [[https://releases.linaro.org/14.09/components/toolchain/binaries/gcc-linaro-aarch64-linux-gnu-4.9-2014.09_linux.tar.xz|Download #1]]
+  * [[http://releases.linaro.org/archive/14.09/components/toolchain/binaries/gcc-linaro-aarch64-linux-gnu-4.9-2014.09_linux.tar.xz|Download #1]]
+  * [[http://dn.odroid.com/toolchains/gcc-linaro-aarch64-none-elf-4.9-2014.09_linux.tar.xz|Download #2]]
 Once the download is done, extract the tarball to **/opt/toolchains/**.
 <code>
 $ sudo mkdir -p /opt/toolchains
-$ sudo tar xvf gcc-linaro-aarch64-linux-gnu-4.9-2014.09_linux.tar.xz -C /opt/toolchains/
+$ sudo tar Jxvf gcc-linaro-aarch64-linux-gnu-4.9-2014.09_linux.tar.xz -C /opt/toolchains/
 </code>
 In order to add the toolchain path to PATH, paste below lines to **$HOME/.bashrc**.
@@ Line 37: / Line 40: @@
 gcc version 4.9.2 20140904 (prerelease) (crosstool-NG linaro-1.13.1-4.9-2014.09 - Linaro GCC 4.9-2014.09)
 </code>
-===== Checkout =====
+==== Checkout ====
 You can checkout Linux kernel source tree from **[[https://github.com/hardkernel/linux/tree/odroidc2-3.14.y-android|Hardkernel's Github]]**, please note that we distribute the Linux kernel in different branches for Android and other Linux distributions.
-==== Android ====
+=== Android ===
+== Lollipop ==
 <code>
 $ git clone --depth 1 https://github.com/hardkernel/linux.git -b odroidc2-3.14.y-android
 $ cd linux
 </code>
+== Marshamollow ==
+<code>
+$ git clone --depth 1 https://github.com/hardkernel/linux.git -b odroidc2-3.14.y-android
+$ cd linux
+</code>
-==== Linux ====
+=== Linux ===
 <code>
 $ git clone --depth 1 https://github.com/hardkernel/linux.git -b odroidc2-3.14.y
 $ cd linux
 </code>
-===== Compile =====
+==== Compile ====
 <WRAP center round important 100%>
@@ Line 60: / Line 72: @@
 </WRAP>
 You must do kernel configuration for **ODROID-C2**, then start to build. Adding **-j** option on make command will help you to finish compiling faster.
@@ Line 68: / Line 79: @@
 </code>
 You have done to compile the Linux kernel (Image), the device tree file (.dtb) and kernel modules (.ko).
-===== Custom Kernel Build =====
+==== Custom Kernel Build ====
 If you have some kernel drivers wish to include for your custom build, you can select the drivers easily in Linux kernel tree. **make menuconfig** will show you text based menus help you to select kernel drivers.
 <code>
@@ Line 84: / Line 96: @@
 $ git push
 </code>
-===== Installation =====
+==== Installation ====
 There are different instructions to install Linux kernel image and device tree for Android and Linux. Since Android loads both from a boot partition, we have to use **fastboot** to install into the dedicated partition. Please refer the partition table from [[http://odroid.com/dokuwiki/doku.php?id=en:c2_partition_table|here]]. In contrast, Linux boots by the instructions described in **boot.ini** the 1st FAT partition.
-==== Android ====
+=== Android ===
 This is the instruction to install kernel image, **Image**, to the boot card.
 <code>
@@ Line 96: / Line 110: @@
 </code>
-==== Linux (Cross build) ====
+=== Linux ===
 <WRAP center round important 100%>
 ** This explanation assume that your USB memory CARD reader is assigned at /dev/sdc. Be careful!**
@@ Line 117: / Line 130: @@
 $ rm -rf mount
 </code>
+===== Native Compile - ODROID-C2/Ubuntu =====
+<WRAP center round important 100%>
+**Note**
+  * 8GB eMMC/SD card have not enough space to build kernel source. In order to do native compile, the  **5GB** of storage space is required at least.
+</WRAP>
+==== Installing required packages ====
+You will need install required packages before you start to build Linux kernel on your Ubuntu ODROID-C2.
+<code>
+odroid@odroid64:~$ sudo apt-get update
+odroid@odroid64:~$ sudo apt-get install git
+</code>
+==== Toolchain (4.9.2) ====
+The kernel for ODROID-C2 does not support gcc 5.x version yet. So, you must change to the gcc 4.9 version in order to build ODROID-C2 kernel.
+<code>
+odroid@odroid64:~$ sudo apt-get install gcc-4.9
+odroid@odroid64:~$ sudo rm /usr/bin/gcc
+odroid@odroid64:~$ sudo ln -s /usr/bin/gcc-4.9 /usr/bin/gcc
+odroid@odroid64:~$ gcc -v
+Using built-in specs.
+COLLECT_GCC=gcc
+COLLECT_LTO_WRAPPER=/usr/lib/gcc/aarch64-linux-gnu/4.9/lto-wrapper
+Target: aarch64-linux-gnu
+Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.9.3-12ubuntu1' --with-bugurl=file:///usr/share/doc/gcc-4.9/u
+Thread model: posix
+gcc version 4.9.3 (Ubuntu/Linaro 4.9.3-12ubuntu1)
+</code>
+==== Checkout ====
+<code>
+odroid@odroid64:~$ git clone --depth 1 https://github.com/hardkernel/linux.git -b odroidc2-3.14.y
+odroid@odroid64:~$ cd linux
+</code>
+==== Compile & Installation ====
+<code>
+odroid@odroid64:~/linux$ make odroidc2_defconfig
+odroid@odroid64:~/linux$ make -j4
+odroid@odroid64:~/linux$ sudo make modules_install
+odroid@odroid64:~/linux$ sudo cp -f arch/arm64/boot/Image arch/arm64/boot/dts/meson64_odroidc2.dtb /media/boot/
+odroid@odroid64:~/linux$ sudo sync
+odroid@odroid64:~/linux$ sudo reboot
+</code>