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|
Embest MarS Board
=================
Board comes with:
* 1G DDR3 SDRAM
* 4G eMMC
* 2M SPI-NOR Flash
Layout::
.-----------------------------------------------------.
|O OTG-->| V | O|
| SW1 USB '---' .--|
| .-----------. v.---. .->| <|
| | | 1|o--| O | `--|
| | i.MX6Dual | 2|--o| N Debug |
| | SoC | `---' USB |
| | | |
| `-----------' |
| |
| |
| |
| |
|O O|
`-----------------------------------------------------'
Boot Configuration
==================
DIP Switch ``SW1`` on the board can be used to set ``BOOT_MODE1`` and
``BOOT_MODE0`` going to the i.MX6:
Set ``SW1 = 01`` for serial boot::
SW1
v.---.
1|o--| O
2|--o| N
`---'
Set ``SW1 = 10`` for internal (SPI-NOR Flash) boot::
SW1
v.---.
1|--o| O
2|o--| N
`---'
Set ``SW1 = 00`` for boot from eFuses::
SW1
v.---.
1|o--| O
2|o--| N
`---'
Flashing barebox
----------------
1. Connect to the board's Debug Mini-USB (115200 8N1)
2. Set ``SW1 = 01`` for serial boot mode (see above)
3. Turn board's power on
4. Upload barebox image to the board via imx-usb-loader
.. code-block:: none
host$ imx-usb-loader images/barebox-embest-imx6q-marsboard.img
..
4. Flash barebox to SPI-NOR Flash via Android Fastboot
.. code-block:: none
host$ fastboot flash bbu-spiflash images/barebox-embest-imx6q-marsboard.img
..
5. Restore ``SW1 = 10`` for internal (SPI-NOR) boot (see above)
|
