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authorAhmad Fatoum <a.fatoum@pengutronix.de>2019-09-12 08:54:11 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2019-09-17 11:47:54 +0200
commit0f180e814341faa27a6887aa364a10858ebb9b56 (patch)
treef29dbe717a465e25c7f44dd5717be8dadec70e26 /Documentation
parent3769e0fa7b5de004e59bf86035b780f97f26abad (diff)
downloadbarebox-0f180e814341faa27a6887aa364a10858ebb9b56.tar.gz
ARM: imx6: add Embest MarSBoard support
This board is produced by Embest/Element 14 and is based on i.MX6 Dual. For more informations on this board : http://www.embest-tech.com/shop/star/marsboard.html Signed-off-by: Eric BĂ©nard <eric@eukrea.com> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Tested-by: Stefan Lengfeld <contact@stefanchrist.eu> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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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)