ARM: vincell: move to DT probing

This enabled multi image support for the Garz&Fricke Vincell board. Also
it adds the Vincell-LT as a second image with a separate device tree.
Previously we used the same image on both the Vincell and the Vincell-LT
image since the differences are not that significant for barebox. Still
this was good for quite some confusion internally, so let's properly
introduce a second image.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 43 insertions, 0 deletions

diff --git a/Documentation/boards/imx/Garz-Fricke-Vincell.rst b/Documentation/boards/imx/Garz-Fricke-Vincell.rst
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index 0000000000..2eb5f65c64
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+Garz+Fricke Vincell LT
+======================
+
+This CPU card is based on a Freescale i.MX53 CPU. The card is shipped with:
+
+  * 512MiB NAND flash
+  * 512MiB synchronous dynamic RAM
+  * microSD slot
+
+see http://www.garz-fricke.com/vincell-lt-core_de.html for more information
+
+
+Bootstrapping barebox
+=====================
+
+The Vincell is shipped with the RedBoot bootloader. To replace RedBoot with
+barebox, you first need to connect a serial console to the device.
+
+UART1 is located on the Molex header X39. When the Vincell is lying on the
+display, then Pin 1 on the header is in the lower right:
+
+  * Pin 1 - GND
+  * Pin 2 - TXD1
+  * Pin 3 - RXD1
+
+If everything is connected right, RedBoot shows up on the console.
+
+factory_bootstrap
+-----------------
+
+Turn on the board and abort the boot process with ``Ctrl-C``.
+Configure RedBoot so that it finds the barebox image on your TFTP server.
+Execute ``fc`` and change the network setup according to your environment.
+Be sure to copy the `Boot script` line to the prompt, otherwise it will be
+set empty. The network setup can be validated with ``ping -h <serverip>``.
+If the network setup is working properly, barebox can be loaded into memory::
+
+  load -v -r -b 0x80100000 barebox-guf-vincell-lt.img
+  exec
+
+Once in barebox, the bootloader can now be persisted to NAND::
+
+  barebox_update -t nand /mnt/tftp/barebox-guf-vincell-lt.img``