Yocto BSP layer for the Rockchip SOC boards

• wiki http://opensource.rock-chips.com/wiki_Main_Page.

This README file contains information on building and booting the meta-rockchip BSP layers.
Please see the corresponding sections below for details.

This layer depends on:

• URI: git://git.yoctoproject.org/poky

• branch: warrior zeus dunfell

• URI: git://git.openembedded.org/meta-openembedded

• layers: meta-oe

• branch: warrior zeus dunfell

I. Configure yocto/oe environment
II. Building meta-rockchip BSP layers
III. Booting your device
IV. Tested Hardware

In order to build an image with BSP support for a given release, you need to download the corresponding tools described in the "Dependencies" section. Be sure that everything is in the same directory.

~ $ mkdir yocto; cd yocto
~/yocto $ git clone git://git.yoctoproject.org/poky -b zeus ~/yocto $ git clone git://git.openembedded.org/meta-openembedded.git -b zeus

And put the meta-rockchip layer here too.

Then you need to source the configuration script: ~/yocto $ source poky/oe-init-build-env

Having done that, you can build a image for a rockchip board by adding the location of the meta-rockchip layer to bblayers.conf, along with any other layers needed e.g.:

${TOPDIR}/../meta-rockchip
${TOPDIR}/../poky/meta
${TOPDIR}/../poky/meta-poky
${TOPDIR}/../poky/meta-yocto-bsp
${TOPDIR}/../meta-openembedded/meta-oe \

To enable a particular machine, you need to add a MACHINE line naming the BSP to the local.conf file:

MACHINE ?= "xxx"

All supported machines can be found in meta-rockchip/conf/machine.

You should then be able to build a image as such:

$ bitbake core-image-minimal

At the end of a successful build, you should have an .wic image in
/path/to/yocto/build/tmp/deploy/<MACHINE>/, also with an rockchip
firmware image: update.img.

Under Linux, you can use these tools to flash the image:

• upgrade_tool: http://opensource.rock-chips.com/wiki_Upgradetool
• rkdeveloptool: http://opensource.rock-chips.com/wiki_Rkdeveloptool

Assuming you are using upgrade_tool:

1. Put your device into rockusb mode:
   http://opensource.rock-chips.com/wiki_Rockusb

2. If it's maskrom rockusb mode, try to enter miniloader rockusb mode:
   $ sudo upgrade_tool db <IMAGE PATH>/loader.bin

3. Flash the image (wic image or rockchip firmware image)
   For wic image:
   $ sudo upgrade_tool wl 0 <IMAGE PATH>/<IMAGE NAME>.wic

   For rockchip firmware image:
   $ sudo upgrade_tool uf <IMAGE PATH>/update.img

The following undergo regular basic testing with their respective MACHINE types.

• px3se evb board
• rk3308 evb board
• rk3326 evb board
• rk3288 evb board
• rk3399 sapphire excavator board

• Jeffy Chen <[email protected]>