Documentation: Add Gigabyte GA-H61M-S2PV

Change-Id: I0064710362a1c7882d5a40b469d6aacad5c60218
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/26964
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

Documentation/mainboard/gigabyte/ga-h61m-s2pv.md

@@ -0,0 +1,54 @@
+# Gigabyte GA-H61M-S2PV
+
+This page describes how to run coreboot on the [Gigabyte GA-H61M-S2PV] desktop
+from [Gigabyte].
+
+## Flashing coreboot
+
+```eval_rst
++---------------------+------------+
+| Type                | Value      |
++=====================+============+
+| Socketed flash      | no         |
++---------------------+------------+
+| Model               | MX25L3206E |
++---------------------+------------+
+| Size                | 4 MiB      |
++---------------------+------------+
+| In circuit flashing | yes        |
++---------------------+------------+
+| Package             | SOIC-8     |
++---------------------+------------+
+| Write protection    | No         |
++---------------------+------------+
+| Dual BIOS feature   | Yes        |
++---------------------+------------+
+| Internal flashing   | yes        |
++---------------------+------------+
+```
+
+### Internal programming
+
+The main SPI flash can be accessed using [flashrom].
+
+## Technology
+
+```eval_rst
++------------------+--------------------------------------------------+
+| Northbridge      | :doc:`../../northbridge/intel/sandybridge/index` |
++------------------+--------------------------------------------------+
+| Southbridge      | bd82x6x                                          |
++------------------+--------------------------------------------------+
+| CPU              | model_206ax                                      |
++------------------+--------------------------------------------------+
+| SuperIO          | ITE IT8728F                                      |
++------------------+--------------------------------------------------+
+| EC               |                                                  |
++------------------+--------------------------------------------------+
+| Coprocessor      | Intel ME                                         |
++------------------+--------------------------------------------------+
+```
+
+[Gigabyte GA-H61M-S2PV]: https://www.gigabyte.com/us/Motherboard/GA-H61M-S2PV-rev-10
+[Gigabyte]: https://www.gigabyte.com
+[flashrom]: https://flashrom.org/Flashrom