AM623: how to rebuild the kernel and where is the kernel source / u-boot source ?

Hello Jesse,

Please reference these other pages in the SDK docs:

https://software-dl.ti.com/processor-sdk-linux/esd/AM62X/08_06_00_42/exports/docs/linux/Foundational_Components/U-Boot/UG-General-Info.html

https://software-dl.ti.com/processor-sdk-linux/esd/AM62X/08_06_00_42/exports/docs/linux/Foundational_Components_Kernel_Users_Guide.html#overview

Regards,

Nick

Hi Nick,

Is it must to install the "ti-processor-sdk-linux-am62xx-evm-08.06.00.42-Linux-x86-Install.bin"?

Jesse

Hello Jesse,

A couple notes:

1) If you want to do Linux development, you need to have a Linux computer (or a Linux virtual machine running on your windows computer if you are just looking to rebuild uboot, the Linux kernel, or the Linux kernel modules). Note filesystem builds with Yocto require quite a lot of ROM and RAM, so I would typically suggest using an actual Linux computer if you need to build the filesystem as well.

2) If you are not an experienced Linux developer, I would suggest following the steps in the processor SDK docs exactly as they are written. That includes installing the Linux SDK on your computer.

Regards,

Nick

Hi Nick ,

  Thank you for your advice. 

1 . In fact, what I want to know is what is the purpose of the following step?

1.2.2.2. Build Steps

$ git clone git.ti.com/.../oe-layersetup.git tisdk

$ cd tisdk
$ ./oe-layertool-setup.sh -f configs/processor-sdk/processor-sdk-08.06.00-config.txt
$ cd build
$ . conf/setenv
$ export TOOLCHAIN_PATH_ARMV7=$HOME/gcc-arm-9.2-2019.12-x86_64-arm-none-linux-gnueabihf
$ export TOOLCHAIN_PATH_ARMV8=$HOME/gcc-arm-9.2-2019.12-x86_64-aarch64-none-linux-gnu
$ git clone git.ti.com/.../core-secdev-k3.git -b master
$ export TI_SECURE_DEV_PKG=./core-secdev-k3
$ MACHINE=<machine> bitbake -k tisdk-default-image

in the link 
 https://software-dl.ti.com/processor-sdk-linux/esd/AM62X/08_06_00_42/exports/docs/linux/Overview_Building_the_SDK.html

As I know this steps can generate kernel / uboot as well.

Hi Nick, 

  Thank you for your patience and explanation. 

Where are the tips on how to package the kernel and the Linux devicetree into the rootfs if I use method 2)?

Jesse

Hi Jesse,

The "Installing the Kernel" section describes the steps.

https://software-dl.ti.com/processor-sdk-linux/esd/AM62X/08_06_00_42/exports/docs/linux/Foundational_Components_Kernel_Users_Guide.html#installing-the-kernel