Ubuntu System Compilation

Hardware Configuration

Recommended hardware configuration for compiling Ubuntu development environment:

64-bit CPU
Ubuntu 20.04, do not use Windows Subsystem (WSL)
16GB of RAM
250GB free space for compiling
Normal user to compile, do not use root user to compile

Software Configuration

Installation packages

sudo apt update
sudo apt-get install git ssh make gcc libssl-dev liblz4-tool \
expect g++ patchelf chrpath gawk texinfo chrpath diffstat binfmt-support \
qemu-user-static live-build bison flex fakeroot cmake gcc-multilib g++-multilib \
unzip device-tree-compiler libncurses-dev

sudo pip install python-pip pyelftools

Get SDK

Email support@neardi.com for development materials

After downloading, check the MD5 code and Neardi-3588-SDK-Linux-${Version}.tar.gz.md5sum for consistency before unzipping:

$ md5sum Neardi-3588-SDK-Linux-${Version}.tar.gz
******************************** Neardi-3588-SDK-Linux-${Version}.tar.gz

Unzip:

tar zxvf Neardi-3588-SDK-Linux-${Version}.tar.gz

Extract:

cd Neardi-3588-SDK-Linux-${Version}
git reset --hard

Switch branches:

branch	explain
LZ16000002	Neardi master branch

git checkout LZ16000002

Compile SDK

Select Configuration

boardConfig	explain
BoardConfig-rk3588-neardi-linux-lpb3588-f0.mk	HDMIIN + HDMI1 + HDMI2 + HDMI3 + DP

./build.sh lunch BoardConfig-rk3588-neardi-linux-lpb3588-f0.mk

Fully Automatic Compilation

For the first compilation of the SDK, it is imperative to compile everything once, otherwise packaging will fail.

Fully automatic compilation will execute all compilations, generating u-boot, kernel, and buildroot.

./build.sh

Partial Compilation

Compile u-boot

./build.sh uboot

Compile kernel

./build.sh kernel

Compile recovery

./build.sh recovery

Compile Ubuntu

20.04 system (main maintenance)

./build.sh focal

22.04 system（Not maintained yet）

./build.sh jammy

Packaging Firmware

RK firmware is packaged in a proprietary format by Rockchip, and can be flashed onto eMMC or SD card using tools provided by Rockchip (Note: Unless specified otherwise, the firmware mentioned on the WIKI by default refers to RK firmware).

# Package RK firmware
./build.sh updateimg

The complete firmware will be saved to rockdev/update.img。

Partition Explanation

Parameter Partition Table

The parameter.txt file contains the partition information of the firmware：

Path：device/rockchip/rk3588/parameter.txt

FIRMWARE_VER: 1.0
MACHINE_MODEL: RK3588
MACHINE_ID: 007
MANUFACTURER: RK3588
MAGIC: 0x5041524B
ATAG: 0x00200800
MACHINE: 0xffffffff
CHECK_MASK: 0x80
PWR_HLD: 0,0,A,0,1
TYPE: GPT
CMDLINE: mtdparts=rk29xxnand:0x00002000@0x00004000(uboot),0x00002000@0x00006000(misc),0x00020000@0x00008000(boot),0x00040000@0x00028000(recovery),0x00010000@0x00068000(backup),-@0x00078000(rootfs:grow)
uuid:rootfs=614e0000-0000-4b53-8000-1d28000054a9
uuid:boot=7A3F0000-0000-446A-8000-702F00006273

The CMDLINE attribute is our focus. Taking uboot as an example, in 0x00002000@0x00004000(uboot), 0x00004000 is the starting position of the uboot partition, and 0x00002000 is the size of the partition, and so on.

package-file

The package-file is used to determine the required partition images and image paths when packaging firmware, and it needs to be consistent with the parameter.txt file.

Path：tools/linux/Linux_Pack_Firmware/rockdev/rk3588-package-file

# NAME          Relative path
#
#HWDEF          HWDEF
package-file    package-file
bootloader      Image/MiniLoaderAll.bin
parameter       Image/parameter.txt
uboot           Image/uboot.img
misc            Image/misc.img
boot            Image/boot.img
recovery        Image/recovery.img
rootfs          Image/rootfs.img
backup          RESERVED