VAR-SOM-MX6 Ubuntu Flash Ubuntu Alip to eMMC

VAR-SOM-MX6 - Ubuntu Linaro Alip-20151215 Flash your target from bootable SDCARD

Note:
Under construction!!! Under construction!!! Under construction!!!

1 Overview

Ubuntu Linaro Alip is pre built file system. For more information Ubuntu based Rootfs provided by Linaro. Variscite used linaro-vivid-alip-20151215-714 image added Vivante Graphic acceleration and compile the GStreamer with i.MX6 support.

Create Ubuntu Alip SDCARD is prerequisite step. Please make sure you run it and have a bootable Ubuntu SDCARD as described in the linked WIKI.

The steps require to build an Bootable SDCARD:

1. Build Ubuntu Alip NFS. Build Ubuntu Alip NFS
2. Created Ubuntu Alip bootable SDCARD. Create Ubuntu Alip SDCARD
3. Copy required file to your SDCARD
4. Boot your target from SDCARD
5. Format and partition the target eMMC
6. Install U-Boot and Linux Kernel images
7. Install the root file system
8. Deploy the kernel modules
9. Deploy the Wi-Fi modules and firmware

2 Copy required file to your NFS directory

Note:
Make sure you built U-Boot for NAND.

$ cd  ~/var-som-mx6-alip/
$ sudo cp uboot-imx/SPL rootfs/root
$ sudo cp uboot-imx/u-boot.img rootfs/root
$ sudo cp linux-2.6-imx/arch/arm/boot/uImage rootfs/root
$ sudo cp linux-2.6-imx/arch/arm/boot/dts/*var*.dtb rootfs/root
$ sudo cp ~/baba/Downloads/
$ sudo cp ~/baba/Downloads/linaro-alip-20151215-v1.tar.bz2  rootfs/root/

3 Format and partition the target eMMC

Boot your target and:

$ fdisk /dev/mmcblk1                                                                                 
n
p
1
<enter for default>
<enter for default>
t
83
w
$ mkfs.ext4 /dev/mmcblk1p1 -Lrootfs

4 Install U-Boot and Linux Kernel images

Note:
Make sure you built U-Boot for NAND.

$ flash_erase /dev/mtd0 0 0
$ kobs-ng init -x SPL --search_exponent=1 -v > /dev/null
$ flash_erase /dev/mtd1 0 0
$ nandwrite -p /dev/mtd1 u-boot.img
$
$ flash_erase  /dev/mtd2 0 0
$ nandwrite -p /dev/mtd2 uImage
$ nandwrite -p /dev/mtd1 -s 0x1e0000 imx6q-var-som.dtb
$ sync

5 Install the root file system

$ mkdir tmp
$ mount /dev/mmcblk1p1 tmp/
$ tar xf linaro-alip-20151215-v1.tar.bz2  -C tmp/
$ umount tmp
$ rm -rf tmp

6 Deploy the kernel modules

$ cd ~/var-som-mx6-alip/linux-2.6-imx
$ sudo make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- modules_install INSTALL_MOD_PATH=/media/rootfs/

7 Deploy the Wi-Fi modules and firmware

$ cd ~/var-som-mx6-alip/build-utilites
$ gedit setup-env
set:
export ROOTFS=/media/rootfs

$ ./sudo_build_wl18xx.sh modules
$ ./sudo_build_wl18xx.sh firmware
$ ./sudo_build_wl18xx.sh bt-firmware
$ sudo umount /dev/sdxxx*

8 u-boot paramters

echo "Please stop at u-boot and set enviroment" echo "setenv bootargs console=ttymxc0,115200 video=mxcfb1:off root=/dev/mmcblk1p1 rootwait rw" echo "saveenv"