[PATCH 2/2] Documentation: Add GuF Santaro documentation

Sascha Hauer s.hauer at pengutronix.de
Thu Nov 6 03:37:10 PST 2014

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
 Documentation/boards/garz-fricke.rst | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 Documentation/boards/garz-fricke.rst

diff --git a/Documentation/boards/garz-fricke.rst b/Documentation/boards/garz-fricke.rst
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+Garz & Fricke based boards
+Garz & Fricke have a variety of Freescale i.MX based boards. Most boards are
+shipped with the redboot bootloader, newer boards are shipped with a combination
+of a shim (U-Boot based) non interactive loader and a Linux based rescue system
+called 'Flash-N-Go'.
+Santaro (i.MX6)
+This board comes with Flash-N-Go. It boots from the internal eMMC boot0 partition.
+To put barebox on this board boot the system up in the Flash-N-Go system by holding
+the user button pressed during startup. The barebox image can be transferred via
+network or any other medium the Santaro supports. You can backup the original bootloader
+.. code-block:: sh
+  cat /dev/mmcblk0boot0 > /mnt/mmcblk0boot0.backup
+  cat /dev/mmcblk0boot1 > /mnt/mmcblk0boot1.backup
+The original bootloader can be restored by copying the backup files back to the
+To install barebox on the board do:
+.. code-block:: sh
+  echo 0 > /sys/block/mmcblk0boot0/force_ro
+  cat barebox-guf-santaro.img > /dev/mmcblk0boot0
+The board will come up with barebox after restart. Should you end up with a nonworking
+barebox or otherwise brick your board this way write a mail to s.hauer at pengutronix.de.
+There's a way to put the board into SD/USB boot mode, but this requires opening the case.

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