Overview

This is the Linux BSP (Board Support Package) for the Emcraft Systems i.MX 6ULL SOM Starter Kit.

The BSP provides a software development environment for evaluation and development of Linux on the Cortex-A7 processor core of the i.MX 6ULL microprocessor using the Emcraft Systems  i.MX 6ULL SOM Starter Kit as a hardware platform.

Supported Features

The following list summarizes the features and capabilities of this release of the  i.MX 6ULL SOM Starter Kit BSP:

• U-Boot firmware:
  • Runs on the Cortex-A7 core;
  • U-Boot v2015.04;
  • Target initialization from power-on / reset;
  • Loads from NAND Flash and runs from RAM;
  • Serial console;
  • Ethernet driver for loading images to the target from network;
  • Serial driver for loading images to the target over UART;
  • Device driver for Flash and self-upgrade capability;
  • Device driver for storing environment and Linux images in Flash;
  • Autoboot feature, allowing boot of OS images from Flash or other storage with no operator intervention;
  • Persistent environment in Flash for customization of target operation;
  • Sophisticated command interface for maintenance and development of the target.
• Linux:
  • Runs on the Cortex-A7 core;
  • Linux kernel v4.9;
  • Device drivers for all key I/O interfaces of the i.MX 6ULL;
  • MTD-based Flash partitioning and persistent UBI Flash file system in Flash;
  • busybox v1.17;
  • POSIX pthreads;
  • Loadable kernel modules;
  • Large pool of pre-built Linux packages ready for the Cortex-A7 core.
• Development environment:
  • Linux-hosted cross-development environment;
  • Yocto 1.8.1 distribution;
  • Development of multiple projects (embedded applications) from a single installation.

New and Changed Features

This section lists new and changed features of this release:

1. Support Linux Suspend to RAM.
   ID: RM 2641.
2. Upgrade i.MX 6ULL kernel to NXP release imx_4.9.88_2.0.0_ga.
   ID: RM 2664.

Known Problems & Limitations

This section lists known problems and limitations of this release:

1. Development Environment: rfs-builder.py pkg-add doesn't work.
   ID: RM 1005.
   Workaround: None.
2. Development Environment: rfs-builder.py pkg-list doesn't work.
   ID: RM 1006.
   Workaround: None.