Difference between revisions of "Rock/U-Boot"

Revision as of 09:38, 2 September 2014

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U-Boot

The source code of U-Boot for Rockchip is available, but more work needs to be done to make it usable for Radxa Rock.

Features

both common fastboot USB protocol and Rockchip proprietary USB protocol are supported (Rockchip USB tools will work)
format of partitions (images) are compatible to Rockchip proprietary bootloader (rkcrc, mkbootimg will work)
(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

RK3188Loader_uboot.bin will be created. DON'T FLASH IT.

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.

@@ Line 15: / Line 15: @@
   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
-Check out the configuration files and edit them to suit your needs:
+'''RK3188Loader_uboot.bin''' will be created. '''DON'T FLASH IT.'''
- include/configs/rk30xx.h
+== Develop ==
- board/rockchip/common/armlinux/config.h
- board/rockchip/common/platform/rk30/paltConfig.h
-Build the bootloader:
+Some important files and directories related to the Rockchip platform:
- make rk30xx
+  * [https://github.com/radxa/u-boot-rockchip/blob/master/UserManual '''UserManual'''] - documentation
+  * [https://github.com/radxa/u-boot-rockchip/blob/master/include/configs/rk30xx.h '''include/configs/rk30xx.h'''] - configuration file
+  * [https://github.com/radxa/u-boot-rockchip/tree/master/tools/rk_tools '''tools/rk_tools''']
+  * [https://github.com/radxa/u-boot-rockchip/tree/master/board/rockchip '''board/rockchip''']
+     ├── [https://github.com/radxa/u-boot-rockchip/tree/master/board/rockchip/common '''common''']
+     │   ├── [https://github.com/radxa/u-boot-rockchip/tree/master/board/rockchip/common/armlinux '''armlinux''']
+     │   ├── [https://github.com/radxa/u-boot-rockchip/tree/master/board/rockchip/common/common '''common''']
+     │   │   ├── A8MMU
+     │   │   ├── crc
+     │   │   ├── emmc
+     │   │   ├── fat
+     │   │   ├── rc4
+     │   │   ├── rockusb
+     │   │   ├── serial_p9
+     │   │   └── SPI
+     │   └── [https://github.com/radxa/u-boot-rockchip/tree/master/board/rockchip/common/platform '''platform''']
+     │       ├── rk2928
+     │       └── rk30
+     └── [https://github.com/radxa/u-boot-rockchip/tree/master/board/rockchip/rk30xx '''rk30xx''']
-RK3188Loader_uboot.bin will be created. '''DON'T FLASH IT.'''
+  * [https://github.com/radxa/u-boot-rockchip/tree/master/arch/arm/cpu/armv7/rk30xx '''arch/arm/cpu/armv7/rk30xx''']
+  * [https://github.com/radxa/u-boot-rockchip/blob/master/arch/arm/include/asm/arch-rk30xx/ '''arch/arm/include/asm/arch-rk30xx''']
 == Unbrick ==
-read [[rock/unbrick | Unbrick Rock]]
+If something goes wrong and your device doesn't boot anymore, read [[rock/unbrick | Unbrick Rock]].
 == Other U-Boot based products ==
@@ Line 39: / Line 60: @@
 == External links ==
+* https://github.com/rkchrome/uboot
 * https://github.com/neo-technologies/rockchip_u-boot
 * http://androtab.info/memopad/fastboot/