Debian Stretch for VAR-SOM-MX7 modules - Recovery SD card v51

Notable changes:

• U-Boot: Add SPL support - and read DDR values & production info from EEPROM
  Critical update that allows future-proofing your SW build and automatically support new DDR3 component generations
• WiFi/BT startup sequence update
  Fix a rare case of WiFi firmware load failure on VAR-SOM-MX7-5G
• FreeRTOS/M4 RPMsg fix
  The hard-coded vring buffer has been removed from the driver: input the vring buffer by device tree node
• rc.local: Adapted runtime PM fix to kernel 4.9.x
• Limit the max CPU freq. to 1 GHz in accordance with its specification
• U-Boot: Add support for custom kernel args by setting a kernelargs env. var.
• U-Boot: Add option to import the env. from a text file, uEnv.txt
• U-Boot: Remove unused pads from NAND configuration
• Use tar.gz instead of tar.bz2 for the eMMC/SD card rootfs
  Its extraction on the target is much faster while its compression ratio is only a little lower.
• Add the net-tools package by default
  This package includes tools like arp, ifconfig, netstat, route, etc.
• debian-nand.sh: Preserve the NAND flash erase counters
• Fix OV5640 driver for S_FMT and MX6S SOC drivers
• Disable SAI2 in device tree
  By default, SAI2 is not connected to BT PCM, so leave it free as GPIOs

Wiki:

http://variwiki.com/index.php?title=VAR-SOM-MX7

Recovery SD

http://variwiki.com/index.php?title=VAR-SOM-MX7_Debian_Recovery_SD_card