...

$ vim <plnx-proj-root>/project-spec/meta-user/recipes-bsp/fsbl/fsbl_%.bbappend
# From 2021.1 onwards
$ vim <plnx-proj-root>/project-spec/meta-user/recipes-bsp/embeddedsw/fsbl-firmware_%.bbappend

#Add debug for FSBL
XSCTH_BUILD_DEBUG = "1"

#Add compiler flags for FSBL
YAML_COMPILER_FLAGS_append = " -DFSBL_PROT_BYPASS"

#Add BSP flags for FSBL
YAML_BSP_CONFIG += "secure_mode"
YAML_BSP_CONFIG[secure_mode] = "set,true"

$ vim <plnx-proj-root>/project-spec/meta-user/recipes-bsp/pmu/pmu-firmware_%.bbappend

#For v2018.1 or later PetaLinux releases only
$ vim <plnx-proj-root>/project-spec/meta-user/recipes-bsp/pmu-firmware/pmu-firmware_%.bbappend

#Add debug for PMUFW
XSCTH_BUILD_DEBUG = "1"

#Add compiler flags for PMUFW
YAML_COMPILER_FLAGS_append = " -DDEBUG_MODE -DXPFW_DEBUG_DETAILED"

#Add BSP flags for PMUFW
YAML_BSP_CONFIG += "secure_mode"
YAML_BSP_CONFIG[secure_mode] = "set,true"

#Add BSP flags for PMUFW
YAML_BSP_CONFIG += "debug_mode"
YAML_BSP_CONFIG[debug_mode] = "set,true"

...

1. Download and untar the PetaLinux release sstate-cache files from https://www.xilinx.com/support/download/index.html/content/xilinx/en/downloadNav/embedded-design-tools.html. Here we are taking 2019.2 as an example.

2. Go to your 2019.2 PetaLinux project and set the following options using petalinux-config

   Code Block
   language bash theme Midnight title SSTATE Template
   $ petalinux-config ---> Yocto Settings ---> Add pre-mirror url ---> file://<path_to_downloads> $ petalinux-config ---> Yocto Settings ---> Local sstate feeds settings ---> local sstate feeds url ---> <path_to_sstate_aarch64_2019.2/aarch64>

   
   

   Code Block
   language bash theme Midnight title SSTATE Example Usage
   $ petalinux-config ---> Yocto Settings ---> Add pre-mirror url ---> file:///opt/xilinx/petalinux/2019.2/downloads $ petalinux-config ---> Yocto Settings ---> Local sstate feeds settings ---> local sstate feeds url ---> /opt/xilinx/petalinux/2019.2/sstate_aarch64_2019.2/aarch64

   
   

   Info
   Note: For PREMIRRORS usage you need to add the file, git, http or https protocol followed by the path, but this is not true for SSTATE feeds.

   
   

3. For setting up the download and shared state directories add the following variables in the <plnx-proj-root>/project-spec/meta-user/conf/petalinuxbsp.conf file.

   Code Block
   language bash theme Midnight title DL_DIR and SSTATE_DIR Template
   DL_DIR = "<PATH-TO-DOWNLOADS-DIRECTORY>/<PetaLinux-Version>/downloads" SSTATE_DIR = "<PATH-TO-SSTATE-DIRECTORY>/<PetaLinux-Version>/sstate-cache/<ARCH>"

   
   

   Code Block
   language bash theme Midnight title DL_DIR and SSTATE_DIR example usage
   DL_DIR = "/home/$USER/plnx-workspace/2019.2/downloads" SSTATE_DIR = "/home/$USER/plnx-workspace/2019.2/sstate-cache/aarch64"

   
   

   Info
   Note: DL_DIR and SSTATE_DIR directories should have read and write permission.

   
   

4. Now you need to start the build and if you are building the SDK (petalinux --sdk) then enabling the network is mandatory for a fresh build.

   Code Block
   language bash theme Midnight title Build Commands
   $ petalinux-build $ petalinux-build --sdk

   
   

5. If you are building without network access then set the BB_NO_NETWORK variable.

   Code Block
   language bash theme Midnight title Set BB_NO_NETWORK
   $ petalinux-config ---> Yocto Settings ---> [*] Enable BB NO NETWORK

   
   

   Info
   Note: In case the project was built previously, run petalinux-build -x mrproper with above variables to reduce build time especially when using petalinux-build --sdk.

   
   

How to disable hwcodecs(Xilinx vcu firmware) in PetaLinux for ZynqMP EV devices.

1. By default hwcodecs are enabled in petalinux project when zynqmp ev device xsa is parsed while creating the project. To disable hwcodes add below variable in <plnx-proj-root>/project-spec/meta-user/conf/petaliuxbsp.conf

   Code Block
   language bash theme Midnight
   IMAGE_FEATURES_remove = "hwcodecs"

   
   

2. Clean and rebuild complete project.

   Code Block
   language bash theme Midnight
   $ petalinux-build -x mrproper $ petalinux-build

   
   

Yocto References 

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