====== Installation of system software on the eMMC flash ======

<WRAP round important>**ATTENTION**: The following modifications must be applied to the MBa28 prototype board:

  * Fix pull-ups boot mode
  * Fix PHY addresses
  * Fix pull-downs TFT display
</WRAP>

===== Installation of the MFG-Tool =====

First of all the MFG-Toolkit from [[http://www.freescale.com/|Freescale]] needs to be installed on your PC. In case you already registered with Freescale it is available for download at the following URL:

  * http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MCIMX28EVKJ&fpsp=1&tab=Design_Tools_Tab

Just unzip the downloaded archive to a folder of your choice.

===== Software archives =====

The system software for the TQMa28 module can be found here:

  * [[en:sys:downloads#mfg_profil_linux_installation|MFG Profile Linux Installation]] (tqma28-mfg-linux-update-yyyymmdd-nn.zip)
  * [[en:sys:downloads#mfg_profil_u-boot-start|MFG Profile U-Boot-Start]] (tqma28-mfg-u-boot-yyyymmdd-nn.zip)

After downloading unzip the archives into the subfolder //Profiles// of the MFG-Tool installation folder. This will create two new directories:

  * //TQMa28-Linux-Update//
  * //TQMa28-U-Boot//

The second profile ("TQMa28-U-Boot") does not install anything on the flash, it only launches U-Boot. However, when saving the environment within U-Boot, it will be saved to flash.

===== DIP switch settings (rescue mode) =====

In order to enable the rescue mode set the DIP switches on the MBa28 as illustrated below:
{{section>en:tqma28:dip_switches#rescue_mode&noheader}}


===== Installation =====

After connecting your PC with a USB type A-A cable to the upper USB socket on the MBa28 mainboard, you can start the MFG tool. Now power on the MBa28 mainboard. The field "A-Hub" should then show "HID-konformes Gerät".

{{:sys:mfg01.png|}}

Select "TQMa28-Linux-Update" from the "Profile:" dropdown. Make sure the correct configuration is selected (//Options// -> //Configuration//). There are four installation options to select from:

^ Option ^ Target ^ Description ^
| eMMC debian | eMMC | U-Boot, Kernel, Debian Squeeze Rootfs |
| eMMC custom | eMMC | U-Boot, Kernel, minimal rootfs with X11 and SSH-Login |
| eMMC firmware | eMMC | U-Boot, Kernel, no rootfs |
| SD custom | SD-Card | U-Boot, Kernel, minimal rootfs with X11 und SSH-Login |

{{:sys:mfg02a.png|}}

Now select the button "Start" to program U-Boot, linux kernel and root filesystem to the eMMC flash. This operation takes approx. 2 to 20 minutes (depending on the size of the root filesystem). If all went ok the progress bar changes from blue to green.

{{:sys:mfg03.png|}}

===== Booting the system =====

**Remove the USB cable from the MBa28 mainboard and the PC.**

Set the DIP switches according to your installation target. If you had chosen eMMC as target set the DIP switches to the following configuration

{{section>en:tqma28:dip_switches#boot_from_eMMC&noheader}}

If you installed the image on the SD-Card use the following configuration 

{{section>en:tqma28:dip_switches#boot_from_sd_card&noheader}}

Now reset the system using the reset button. 

To boot the kernel and the root filesystem from the SD card you have to change the following variable in U-Boot:
<code bash>
setenv mmcdev 1
saveenv
</code>

At the console you can see the output of the boot process. The following screenshot shows the boot process for the "custom" root filesystem:

{{:sys:mfg04.png|}}

{{:sys:mfg07.png|}}