Building Linux kernel (SDVX)

Info Box Applies to SDVX

History

Version	Date	SDVX version	Notes
1.0.0	Sep 2018	SDVX 1.0.0

Quick reference

Repository Information

URL	git@git.dave.eu:sdvx/inux-2.6-imx.git
stable branch	sdvx
stable tag	sdvx-1.0.0

SDVx-Lite

Build Information

defconfig	imx_v7_axel_defconfig
Kernel binary	UIMAGE_LOADADDR=0x10008000 uImage
Device trees	Platform	DTB
	SDVx-Lite	imx6dl-sfczg-cb0043.dtb, imx6dl-sfczg-cb0045.dtb

SDVx-Ul

Build Information

defconfig	imx_v7_lynx_defconfig
Kernel binary	UIMAGE_LOADADDR=0x80008000 uImage
Device trees	Platform	DTB
	SDVx-Ul	imx6ul-axelulite-cb0042.dtb imx6ul-axelulite-cb0044.dtb

Detailed Instructions

It is assumed that the development environment has been set up.

• start the Linux development VM and login into the system
• open a terminal window and cd into Linux kernel source code

cd sdvx/linux/

• in case of needs you can update your local repository with the following git command

git pull

• configure the build environment

source ~/env-lite.sh

• to build the binaries run the following commands:

make imx_v7_axel_defconfig
make UIMAGE_LOADADDR=0x10008000 uImage imx6dl-sfczg-cb0043.dtb

The former command selects the default SDVx configuration, while the latter builds the kernel binary image with the required u-boot header and the kernel device tree.

Default Linux kernel configuration can be changed by using the standard menuconfig, xconfig, or gconfig make target. Subsequent builds just require uImage make target to update the binary image. Once the build process is complete, the kernel binary image is stored into the arch/arm/boot/uImage file. Both this file and the kernel device tree can be copied to the tftp root directory /tftpboot/sdvx/ with the following commands:

cp arch/arm/boot/uImage /tftpboot/sdvx/linux/
cp arch/arm/boot/dts/*.dtb /tftpboot/sdvx/linux/