Overview

This is the Linux BSP (Board Support Package) for the NXP i.MX RT1024 EVK board.

The BSP provides a software development environment for evaluation and development of Linux (uClinux) on the Cortex-M7 processor core of the i.MX RT1024 microcontroller using the NXP i.MX RT1024 EVK board as a hardware platform.

Supported Features

The following list summarizes the features and capabilities of this release of the NXP i.MX RT1024 EVK BSP:

• Linux:
  • Kernel v.5.15.71;
  • Serial Linux console;
  • Ethernet device driver and Linux TCP/IP networking (ping, NFS, Telnet, FTP, NTPD, etc);
  • Clock driver;
  • pinctrl driver;
  • MMC/SD driver;
  • USB driver;
  • busybox v1.24.2;
  • POSIX pthreads;
  • Hardened exception handling; an exception triggered by a process affects only the offending process;
  • MPU user-level protection support;
  • GPIO device driver.
• U-Boot firmware:
  • U-Boot 2022.04;
  • Target initialization from power-on / reset;
  • Serial console;
  • Ethernet driver for loading images to the target;
  • Clock driver;
  • pinctrl driver;
  • Device driver for MMC/SD Card;
  • USB driver;
  • Autoboot feature, allowing boot of OS images from the SD Card;
  • Persistent environment in the SD Card for customization of target operation;
  • Sophisticated command interface for maintenance and development of the target.
• Development tools:
  • Linux-hosted cross-development environment;
  • 11.3 GNU toolchain is used for development of user-space applications;
  • ELF / dynamic linking supported;
  • Hardware FPU enabled in the toolchain and kernel;
  • mkimage tool used by the Linux kernel build process to create a bootable Linux image.

New and Changed Features

The following is a summary of the changes in Release 3.0.0, as compared to Release 2.5.6:

1. Use hard-float toolchain for Linux user-space.
   ID: RM 2901.
2. USB WiFi does not work with DWA-125 adapter.
   ID: RM 6778.
3. Console becomes unusable in U-Boot if press a key on a keyboard very early when U-Boot just started.
   ID: RM 6717.
4. Disable unused clocks in Linux for IMXRT1024-EVK board.
   ID: RM 6714.
5. Add the hcitool utility to the target root filesystem of the rootfs project.
   ID: RM 6781.
6. gcc 11.3: provide access to the prebuilt shared libraries from buildroot.
   ID: RM 6780.
7. Integrate gcc 11 in uClinux build (user-space component).
   ID: RM 6763.

Known Problems & Limitations

This section lists known problems and limitations of this release:

1. dropbear crashes after exiting from the ssh session to rt1024.
   ID: RM 6769
   Workaround: Restart dropbear by performing the dropbear -R command on the target.
2. NFS mount is not supported in the BSP.
   ID: RM 6785
   Workaround: None.
3. gdbserver is not provided.
   ID: RM 6784.
   Workaround: None.
4. Reboot does not work.
   ID: RM 6768.
   Workaround: Use the reboot -f command.