Instruction to build image for Tinkerboard 2S

[serene 0]

Hi,

I need to customize Tinkerboard 2S image (enable PPP among other things), but I am unable to find a complete instruction in how to build the image.

I found the instruction for the older platform (RK3288), but it didn't work. When I used generic instruction in building RK3399 platform, I got compile error in boardinfo.c (implicit declaration of functions in seq_file.o).

1. Where can I find a complete instruction in how to build the image (kernel and U-Boot) for Tinkerboard 2S (RK3399 platform)?
2. Which defconfig file to be used? I only saw tinker2_defconfig, which I believe is the config for U-Boot only.

Edited September 23, 2021 by serene
Fixed typo

[serene 0]

This is the link to the older platform (RK3288) I mentioned above:

https://qiita.com/mt08/items/890a71d0b399ac1a9b49

[tooz 47]

hello @serene

some commands can be found in
device/rockchip/tinker_board_2/build.sh
you will need the rkbin to build it successfully. building steps are as follows

1. u-boot
   cd u-boot
   ./make.sh tinker2

2. kernel
   cd kernel
   make ARCH=arm64 tinker2_defconfig
   make ARCH=arm64 rk3399-tinker_board_2.img -j8

[serene 0]

Hello @tooz

Where can I find device/rockchip/tinker_board_2/build.sh? In what package or file is it, and where is the location?

I didn't find it in https://github.com/TinkerBoard2/kernel

Edited September 24, 2021 by serene
Add explanation

[tooz 47]

hello @serene, 

it can be found here: https://github.com/TinkerBoard2-Android/device_asus_tinker_board_2 

[serene 0]

15 hours ago, tooz said:

hello @serene, 

it can be found here: https://github.com/TinkerBoard2-Android/device_asus_tinker_board_2 

Thanks @tooz

I noticed that it's for Android. I understand that few commands can be used for Debian.

Do you have similar one like that (detail build documentation) containing instruction for Debian?

Edited September 27, 2021 by serene
add clarification