Z-turn-Board-V2-Diary

🌷Linux(Preliminaries)🌌

Necessary steps for Linux in Zynq.

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[Ensuring] Vivado [output(.xsa)] compatibility

As per reference, certain processor features must be enabled. Namely:

• “One Triple Timer Counter (TTC) (required)”.
• “External memory controller with at least 512 MB of memory (required)”.
• “UART for serial console (required)”.
• “Non-volatile memory, for example, QSPI flash and SD/MMC. This memory is optional, but only the JTAG boot can work”.
• “Ethernet (optional, essential for network access)”.

(Simply re-adding the “Zynq” component, should be sufficient).
(Re-export (including bitstream) afterwards).

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Example(Block Design):

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Petalinux installation

• Download the petalinux installer
  (Although there was a BSP (initial cconfiguration) for z-turn, it’s quite old (2018 vs 2023)).
• In order to install it, a supported OS (Ubuntu) is required.

Unsupported OS(Gentoo)

One method is to chroot into a supported OS: e.g.: Ubuntu LTS, thus regular installation, on a partition, is needed.
In order to chroot into it, I use the following script:

#!/bin/bash
DEST=/path/to/Ubuntu/mountpoint
cd "$DEST"
cp --dereference /etc/resolv.conf etc/
for i in dev sys run;
do
        mount --rbind /$i $i
        mount --make-rslave $i
done
# mount --bind /var/tftp tftpboot
# mount --make-rslave tftpboot
mount -t tmpfs none tmp
mount -t proc /proc proc
# #### ######## #### #### ######## #### #
chroot . /bin/bash -l                                                                                                                                                                                                                          
umount -l *

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Inside the chroot jail 🏛️(Preparation):

After chrooting:

• $ source /etc/profile
• Fix /bin/sh to point to /bin/bash:
  $ dpkg-reconfigure dash
• Install the necessary packages, either through
  • the petalinux dependencies script, or by consulting
  • the packages list spreadsheet
  • Example command:
    $ apt-get install iproute2 gawk python3 build-essential gcc git make net-tools libncurses5-dev tftpd zlib1g-dev libssl-dev flex bison libselinux1 gnupg wget git-core diffstat chrpath socat xterm autoconf libtool tar unzip texinfo zlib1g-dev gcc-multilib automake screen pax gzip cpio python3-pip python3-pexpect xz-utils debianutils iputils-ping python3-git python3-jinja2 libegl1-mesa libsdl1.2-dev pylint libtinfo5
• (Ensure the proper locale(e.g.: en_US.UTF-8) is set: $ locale)
  • ($ apt install locales)
  • ($ dpkg-reconfigure locales and set a proper(UTF-8) one)

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🏛️(Petalinux instalation):

• Normal user: $ su - my_username
• $ ./petalinux-v2023.2-10121855-installer.run --dir path/to/dest/petalinux/ --platform "arm"
  (limiting to arm may help reduce the size)
• ($ cd petalinux)
• $ source settings.sh
  (opens access to commands like: petalinux-*)

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Next: Creating a project

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Various troubleshooting from the internet:

• Do not mix different Petalinux and BSP

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Referencies

• UG1144: PetaLinux Tools Documentation: Reference Guide (site)
• Device tree migration notes (site)

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