Yocto Linux BSP Ver.1 User Guide for Quark series

Getting Started

Conventions

${IMAGE_PACK} : prebuilt image pack

e.g. U221LIV1050_quark_2015-05-22.zip

${IMAGE_DIR} : the directory prebuilt image pack extracted to

e.g. ~/U221LIV1050_quark_2015-05-22

${BSP_PACK} : BSP pack

e.g. U221LBV1050_2015-05-22.zip

${BSP_HOME} : the directory BSP pack extracted to

e.g. ~/LBV1050/meta-clanton_v1.0.4/

${SD_MOUNT} : mount point of SD card in Ubuntu

e.g. /media/sdf1

${POKY} : Yocto poky version

e.g. 1.4.2

debug console / serial console

serial terminal program (e.g. minicom, putty, teraterm ...) that serial port is configured to 115200 8N1

terminal console

terminal program (e.g. gnome-terminal, xfce4-terminal ...)

Prerequisites

To install Docker Engine on your platform

Please refer to Docker Installation Guide for details

To pull ubuntu 12.04 image from Docker Hub & run the image

$ docker pull advrisc/u12.04-quarklbv2

$ docker run --name quarkLBV1050 -it advrisc/u12.04-quarklbv2 /bin/bash

To copy BSP from local filesystem to the container

$ docker cp ${BSP_PACK} quarkLBV1050:/home/adv/

To copy files from the container's filesystem to local machine

$ docker cp quarkLBV1050:/home/adv/${BSP_HOME}/yocto_build/tmp/deploy/images/ ~

Introducing BSP

The BSP is based on Yocto Project with Intel enhanced features for Quark, plus specific target board features from Advantech Inc..

Naming Rule

The tarball/prebuilt image name is consist of the model name followed by "LB" or "LI" plus version number and released date.

For example, U221LBV1050_2015-05-22.zip which "U221" stands for UBC-221, "LB" is acronym of Linux BSP, "V1050" stands for Version 1.050.

For example, U221LIV1050_quark_2015-05-22.zip which "LI" is acronym for prebuilt Linux Image.

BSP pack

Unpack BSP pack to home directory by performing the following command:

$ unzip ${BSP_PACK} -d ~/

The description of some important folders list below:

${BSP_HOME}/

meta-advantech/ : meta layer by Advantech

meta-intel/ : meta layer by Intel

meta-clanton-*/ : meta layer by Intel

setup.sh : to setup one new build environment

Prebuilt image pack

Perform the following command to unpack prebuilt-image-pack to home directory

$ unzip ${IMAGE_PACK} -d ~/

Prepare one FAT32 formatted SD card, and mount it to mount point

$ cp -a ${IMAGE_DIR}/sdcard/* ${SD_MOUNT}/

Build Instructions

To create one new build environment

Perform the following commands in terminal console

$ cd ${BSP_HOME}/

$ ./setup.sh

$ source poky/oe-init-build-env yocto_build

To continue an exist build environment

Perform the following commands in terminal console

$ cd ${BSP_HOME}/

$ source poky/oe-init-build-env yocto_build

To build all image files

To create/continue a build environment

Perform the following command in terminal console

$ bitbake image-full

The following files will be located in the directory "./tmp/deploy/images/" while building process finished successfully.

boot/grub/grub.conf

bzImage

core-image-minimal-initramfs-clanton.cpio.gz

grub.efi

image-full-clanton.ext3

To build toolchain installer

To create/continue a build environment

Perform the following command in terminal console

$ bitbake image-full -c populate_sdk

The installer, clanton-tiny-uclibc-x86_64-i586-toolchain-${POKY}.sh, will be located in the directory "./tmp/deploy/sdk".

To build grub

To create/continue a build environment

Perform the following command in terminal console

$ bitbake grub

The file, grub.efi, will be located in the directory, ./tmp/deploy/images/.

To build linux kernel

To create/continue a build environment

Perform the following command in terminal console

to show up menuconfig

$ bitbake linux-yocto-clanton -c menuconfig

to do build

$ bitbake linux-yocto-clanton

The file, bzImage, will be located in the directory, ./tmp/deploy/images/.

To build initramfs

To create/continue a build environment

Perform the following command in terminal console

$ bitbake core-image-minimal-initramfs

The file, core-image-minimal-initramfs-clanton.cpio.gz, will be located in the directory, ./tmp/deploy/images/.

Customization

Setting up SDK

Please follow the section,to build toolchain installer, to build one toolchain installer first.

Perform the following command in terminal console

$ cd ${BSP_HOME}/yocto_build/tmp/deploy/sdk

$ sudo ./clanton-tiny-uclibc-x86_64-i586-toolchain-${POKY}.sh

Enter directory or press Enter while following question shows up:

Enter target directory for SDK (default: /opt/clanton-tiny/1.4.2):

Just press Enter while following question shows up:

You are about to install the SDK to "/opt/clanton-tiny/1.4.2". Proceed[Y/n]?

While following message shows up means the SDK is ready.

Extracting SDK...done

Setting it up...done

SDK has been successfully set up and is ready to be used.

Setting up cross compiling environment

SDK has been set up (ref. Setting up SDK)

Perform the following command in terminal console

$ source /opt/clanton-tiny/${POKY}/environment-setup-i586-poky-linux-uclibc