[PATCH] efi: add iBASE MI991AF documentation.

[Oleksij Rempel <linux@rempel-privat.de>]

From: Oleksij Rempel <o.rempel@pengutronix.de>

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
---
 Documentation/boards/efi.rst           |  2 ++
 Documentation/boards/ibase-mi991af.rst | 43 ++++++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+)
 create mode 100644 Documentation/boards/ibase-mi991af.rst

diff --git a/Documentation/boards/efi.rst b/Documentation/boards/efi.rst
index 6c90e6cdf..f59bb1d5b 100644
--- a/Documentation/boards/efi.rst
+++ b/Documentation/boards/efi.rst
@@ -1,3 +1,5 @@
+.. _barebox_on_uefi:
+
 barebox on (U)EFI
 =================
 
diff --git a/Documentation/boards/ibase-mi991af.rst b/Documentation/boards/ibase-mi991af.rst
new file mode 100644
index 000000000..a22e5fcf7
--- /dev/null
+++ b/Documentation/boards/ibase-mi991af.rst
@@ -0,0 +1,43 @@
+iBASE MI991AF
+=============
+
+The iBASE MI991AF Mini-ITX motherboard has
+
+  * 7th/6th Generation Intel® Xeon® E3 / Core™ i7 / i5 /i3 / Pentium® / Celeron® QC/DC processors, up to 4GHz
+  * 2x DDR4 SO-DIMM, Max. 32GB, ECC compatible
+  * Intel® Processor integrated graphics device, supports DVI-D, HDMI and DisplayPort
+  * Dual Intel® Gigabit LAN
+  * 2x USB 2.0, 6x USB 3.0, 4x COM, 4x SATAIII
+  * 2x Mini PCI-E slots, 1x mSATA, 1x PCI-E(x16)
+  * Watchdog timer, Digital I/O, iAMT (11.0), TPM (1.2), iSMART
+
+Running barebox
+---------------
+
+Building the barebox image for this target is covered by the ``efi_defconfig``
+
+BIOS should be configured as follow:
+
+  * When you turn on the computer, the BIOS is immediately activated. Pressing
+    the <Del> key immediately allows you to enter the BIOS Setup utility. If you are
+    a little bit late pressing the <Del> key, POST (Power On Self Test) will
+    continue with its test routines, thus preventing you from invoking the Setup.
+    In this case restart the system by pressing the ”Reset” button or simultaneously
+    pressing the <Ctrl>, <Alt> and <Delete> keys. You can also restart by turning the
+    system Off and back On again.
+  * Reset BIOS settings. With this step we wont to make sure BIOS has defined common state to avoid
+    undocumented issues. Switch to "Save & Exit" tab, choice "Restore Defaults"
+    and press Enter. Answer "Yes" and press Enter again. Then choice "Save Changes and Exit"
+    and press Enter.
+  * Enable UEFI support. Switch to "Boot" tab. Choice "Boot mode select" and set it to "UEFI".
+    Switch in the "Save & Exit" tab to "Save Changes and Exit" and press Enter.
+
+To make network work in barebox you will need to prepare efi binary network drivers and put them in to
+"network-drivers" directory.
+
+To continue please proceed with barebox :ref:`barebox_on_uefi` documentation.
+
+Links
+-----
+
+  * https://www.ibase.com.tw/english/ProductDetail/EmbeddedComputing/MI991 
-- 
2.11.0


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