Rock/bootloader

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Introduction

Currently all RK3188 based devices including the Radxa Rock use the same bootloader from Rockchip.

Its main task is to:

• Load and start the kernel/boot images or recovery image from the corresponding partitions.
• Communicate with the host PC to download the image/firmware for upgrading

Download

The bootloader of the Radxa Rock can be downloaded from this address:

   http://dl.radxa.com/rock/images/loader/

Source code

The bootloader is based on U-boot and source code is available now: https://github.com/neo-technologies/rockchip_u-boot

TODO: Add instructions to build bootloader from source.

Analysis

The analysis of the bootloader is done by sarg. You can contact sarg on IRC on the channel #linux-rockchip if you are interested. You can find the details here:

   https://gist.github.com/sarg/5028505

You can find more information on sargs work here although the article is in Chinese.