i.MX Yocto Project: How can I compile the kernel manually?

i.MX Yocto Project: How can I compile the kernel manually?

created by Leonardo Sandoval Gonzalez on Jul 30, 2013 9:49 AM, last modified by Leonardo Sandoval Gonzalez on Jul 30, 2013 9:49 AM

Version 1

1. To setup the Yocto environment, from the BASE folder run

 

fsl-community-bsp $ . setup-environment build

 

 

2. Build the toolchain

 

build $ bitbake meta-toolchain

# Other toolchains:

# Qt Embedded toolchain build: bitbake meta-toolchain-qte

# Qt X11 toolchain build: bitbake meta-toolchain-qt

 

 

3. Install it on your PC

 

build $ sudo sh \

  tmp/deploy/sdk/poky-eglibc-x86_64-arm-toolchain-<version>.sh

 

4. Setup the toolchain environment

 

build $ source \

  /opt/poky/<version>/environment-setup-armv7a-vfp-neon-poky-linux-gnueabi

5. Get the Linux Kernel's source code.

 

$ git clone git://git.freescale.com/imx/linux-2.6-imx.git linux-imx

$ cd linux-imx

 

6. Create a local branch

 

linux-imx $ BRANCH=imx_3.0.35_4.0.0 # Change to any branch you want,

  # Use 'git branch -a' to list all

linux-imx $ git checkout -b ${BRANCH} origin/${BRANCH}

 

7. Export ARCH and CROSS_COMPILE

 

linux-imx $ export ARCH=arm 

linux-imx $ export CROSS_COMPILE=arm-poky-linux-gnueabi-

linux-imx $ unset LDFLAGS

 

8. Choose configuration and compile

 

linux-imx $ make imx6_defconfig 

linux-imx $ make uImage 

 

9. To Test your changes, copy the `uImage` into your SD Card

 

linux-imx $ sudo cp arch/arm/boot/uImage /media/boot

 

 

10. If case you want your changes to be reflected on your Yocto Framework, create the patches following the document i.MX Yocto Project: How can I patch the kernel?