U-Boot

Updates to the U-Boot in this release include:

• Update to mainline U-Boot 2014.04 with new partition layout and NAND driver which enables hardware ECC.
• Support new config block layout.
• Dropped SD card environment support (booting the boot loader from SD card is not possible with fused modules)

Linux Kernel 

Updates to the Linux kernel in this release include: 

• Make use of hardware ECC result when reading from NAND (this breaks backward compatibility, reflash of root filesystem needed)
• Clear pending characters from UART when configuring FIFO. This solves boot hang when UART characters are received during startup.
• Fix global timer length which makes sure kernel time is monotonic increasing
• Add support for second Ethernet (enable with CONFIG_FEC0)
• Add support for UART4/UART5 (enable with CONFIG_UART[3|4]_SUPPORT)
• Support new pin assignment for VF50 V1.1 and newer
• Use chip select for NAND (required for U-Boot 2014.04)

Linux user-space 

• Update GPIO config tool to V1.2
• Add mcc-pingpong demo application for communication with Cortex M4 core

Download Information 

• You can download this version from our product download server at: http://developer.toradex.com/files/toradex-dev/uploads/media/Colibri/Linux/Images
• The U-Boot, Linux kernel sources and OpenEmbedded metadata are available at: http://git.toradex.com