本帖最后由 luwanjia 于 2018-10-24 21:50 编辑
感谢各位亲的厚爱，很抱歉，本人从今年一月份就没有从事rk3288的开发了，所以本帖一直没有更新维护，但是之前开发的资料和源码一直保留在Github上面。
相关内容请直接去Github上获取，链接：https://github.com/luwanjia/rockchip-dev
rockchip-dev/RK3288_Technical_Reference_Manual.md 是本人自己总结和验证过的手册，大家可以参考。
目录rockchip-dev/linux-rootfs/下面的01~07是完整的步骤，初学者可以一步一步的来。
This manual is for the development of linux on RK3288 board. My operating system is debian8.7 x64.
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Set develop environment
We need arm-eabi-gcc to compile the kernel, arm-eabi-4.6 and arm-eabi-4.8 are available in AndroidSDK_5.1, you can find it in path “AndroidSDK_5.1/prebuilts/gcc/linux-x86/arm”.
Here I use arm-eabi-4.8, you can download it directly here. (链接: 百度网盘-链接不存在 密码: 4ssx) -
Build kernel
1> Download source code of kernel4.4 for linux.
$git clone https://github.com/luwanjia/linux-kernel2> Change to right branch
$git checkout firefly3> Config whith right configure file.
$export ARCH=arm
$export CROSS_COMPILE=/bin/arm-eabi-
$make rockchip_linux_defconfig
$make rk3288-firefly.img4> If there is no errors, the last print log is:
OBJCOPY arch/arm/boot/zImage
Kernel: arch/arm/boot/zImage is ready
Image: kernel.img is ready
Pack to resource.img successed!
Image: resource.img (with rk3288-firefly.dtb logo.bmp) is ready -
Build initrd
1> Download source code
$git clone https://github.com/TeeFirefly/initrd.git2> Change to branch for-kernel_4.4
$git checkout for-kernel_4.43> Build in parent directory of initrd root directory.
$make -C initrd4> If there is no errors, initrd.img will be generated.
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Pack zImage and initrd.img into the linux-root.img
$mkbootimg --kernel kernel_4.4/arch/arm/boot/zImage --ramdisk initrd.img --second kernel_4.4/resource.img -o linux-boot.img
Now, linux-boot.img is OK, it will be used in step6.
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Make the rootfs of ubuntu16.04
1> First, please download the minimum core of ubuntu
$wget -c http://cdimage.ubuntu.com/ubuntu … 4-core-armhf.tar.gz2> unpack
$mkdir linux-rootfs
$sudo tar -xpf ubuntu-base-16.04-core-armhf.tar.gz -C linux-rootfs3> Install the simulator to run the root file system
$sudo apt-get install qemu-user-static
$sudo cp /usr/bin/qemu-arm-static linux-rootfs/usr/bin/4> Copy the local host DNS configure to rootfs
$sudo cp -b /etc/resolv.conf linux-rootfs/etc/resolv.conf5> Add additional sources of port ubuntu, append follow strings to linux-rootfs/etc/apt/sources.list as administrator
deb Index of /ubuntu-ports xenial main universe
deb-src Index of /ubuntu-ports xenial main universe6> Use a mount script file to mount the core file system. Please see file ch-mount.sh, and add executable permissions.
ch-mount.sh Link：ch-mount.sh.tar.gz (473 Bytes)$sudo chmod +x ch-mount.sh7> Mount rootfs, Notice that do not excute the script as administrator, otherwise errors will occur.
$./ch-mount.sh -m linux-rootfsNow, you will enter the simulate bash as root, you can install any packages you want to integrate. a) Install network tools to make ifconfig command work. #apt-get install net-tools b) #apt-get install vim openssh-server c) #apt-get install ubuntu-session xubuntu-desktop Please wait to be done. Start dbus server to solve the error: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory #/etc/init.d/dbus start d) Enable auto connect to network #echo auto eth0 > /etc/network/interfaces.d/eth0 #echo iface eth0 inet dhcp >> /etc/network/interfaces.d/eth0 e) Setup startup desktop #update-alternatives --config x-session-manager Selection: desktop | x-session --------------------- xubuntu | startxfce4 --------------------- lubuntu | startlxde f) Set default login screen #dpkg-reconfigure lightdm g) Set the user and password to login #useradd -s '/bin/bash' -m -G adm,sudo ubuntu #passwd ubuntu #passwd root h) Exit from simulate bash #exit8> After your installations in rootfs, please unmount the rootfs:
$./ch-mount.sh -u linux-rootfs9> Create an empty image disk to save rootfs
$dd if=/dev/zero of=linux-rootfs.img bs=1M count=4096
$sudo mkfs.ext4 -F -L linuxroot linux-rootfs.img10> Mount the image disk, and copy the rootfs to it
$mkdir mnt
$sudo mount linux-rootfs.img mnt
$sudo cp -rfp linux-rootfs/* mnt/11> Unmount the image disk and resize it.
$sudo umount mnt
$/sbin/e2fsck -p -f linux-rootfs.img
$/sbin/resize2fs -M linux-rootfs.img12> Now, rootfs is done. linux-rootfs.img will be used in step6.
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Make one key update package.
1> We need linux-boot.img and linux-rootfs.img created just now. And the tools to flash them into board.
In AndroidSDK_5.1, the tools is avaiable:
AndroidSDK_5.1/RKTools/linux/Linux_Upgrade_Tool_v1.2/rockdev2> Copy rockdev to somewhere as you want. And copy linux-rootfs.img and linux-rootfs.img to rockdev/Image directory.
3> Do some modifications for parameter and package-file, and run mkupdate.sh
Maybe you don’t know how to modify parameter and package-file, it does’t matter, you can unpack an official package, and you will get these two files.a) Unpack an official package, I use Firefly-rk3288_Ubuntu_1604_2016_10181203_Beta.img as official package. $mv Firefly-rk3288_Ubuntu_1604_2016_10181203_Beta.img update.img $./unpack.sh After that, you will get all the files you need. b) Make update.img $./mkupdate.sh Notice that, you should add the excutable permissions to all script files.4> Now, update.img will generated here.
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Flash update.img to board.
1> Press the recovery button and reset button at the same time.2> Free the reset button and hold on the recovery button for more than 2 seconds.
3> Now, the board entry the flash model, and use follow command to flash:
$sudo upgrade_tool uf update.img4> Please wait, after flash success, the board will reboot automatically.