Difference between revisions of "Rock/U-Boot"

Revision as of 13:10, 26 December 2014

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Features

both Rockchip proprietary USB protocol and fastboot USB protocol are supported (Rockchip USB tools works)
format of partitions (images) are compatible to Rockchip proprietary bootloader (rkcrc, mkbootimg works)
(need more investigation...)

Build

git clone https://github.com/radxa/u-boot-rockchip.git
cd u-boot-rockchip
export ARCH=arm
export CROSS_COMPILE=arm-linux-gnueabihf-
make rk30xx

The binary we need for nand flash is RK3188Loader_miniall.bin and uboot.img.

Develop

Some important files and directories related to the Rockchip platform:

 * UserManual - documentation
 * include/configs/rk30xx.h - configuration file
 * tools/rk_tools

 * board/rockchip
    ├── common
    │   ├── armlinux
    │   ├── common
    │   │   ├── A8MMU
    │   │   ├── crc
    │   │   ├── emmc
    │   │   ├── fat
    │   │   ├── rc4
    │   │   ├── rockusb
    │   │   ├── serial_p9
    │   │   └── SPI
    │   └── platform
    │       ├── rk2928
    │       └── rk30
    └── rk30xx

 * arch/arm/cpu/armv7/rk30xx
 * arch/arm/include/asm/arch-rk30xx

Unbrick

If something goes wrong and your device doesn't boot anymore, read Unbrick Rock.

External links

http://androtab.info/rockchip/u-boot/ (working binaries)
https://github.com/linux-rockchip/u-boot-rockchip (some improvement)

@@ Line 15: / Line 15: @@
   make rk30xx
-'''RK3188Loader_uboot.bin''' will be created. '''DON'T FLASH IT.'''
+The binary we need for nand flash is '''RK3188Loader_miniall.bin''' and '''uboot.img'''.
 == Develop ==