Documentation/mainboard/lenovo: Add ThinkCentre M710s

Change-Id: I90311257a28bd463712c4d43f8b83baa745509cc
Signed-off-by: Nicholas Sudsgaard <devel+coreboot@nsudsgaard.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80411
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Alicja Michalska <ahplka19@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

Documentation/mainboard/index.md

@@ -184,6 +184,7 @@ mAL-10 <kontron/mal10.md>
 Mainboard codenames <lenovo/codenames.md>
 Hardware Maintenance Manual of ThinkPads <lenovo/thinkpad_hmm.md>
 R60 <lenovo/r60.md>
+ThinkCentre M710s <lenovo/thinkcentre_m710s.md>
 T4xx common <lenovo/t4xx_series.md>
 X2xx common <lenovo/x2xx_series.md>
 M920 Tiny <lenovo/m920q.md>

Documentation/mainboard/lenovo/thinkcentre_m710s.md

@@ -0,0 +1,81 @@
+# Lenovo ThinkCentre M710s
+
+This page provides technical documentation on [Lenovo ThinkCentre M710s].
+
+## Flash chip
+
+```{eval-rst}
++----------+-------------+
+| Type     | Value       |
++==========+=============+
+| Socketed | yes         |
++----------+-------------+
+| Model    | W25Q64JV-.Q |
++----------+-------------+
+| Size     | 8MiB        |
++----------+-------------+
+| Package  | SOIC-8      |
++----------+-------------+
+```
+
+The flash chip is divided into the following regions.
+
+	00000000:00000fff fd
+	00200000:007fffff bios
+	00003000:001fffff me
+	00001000:00002fff gbe
+
+## Flashing
+
+The flash chip cannot be flashed internally when running vendor firmware, and must
+be flashed externally using a programmer of your choice.
+
+Steps on how to open the chassis and get access to the mainboard are described
+in the [hardware maintenance manual]. Follow the steps shown from
+"[Removing the computer cover]" until step 1 of "[Replacing the storage drive]".
+
+The SPI flash should be easy to identify and the location is shown in the image
+below. See the [datasheet] and [flashing firmware tutorial] for more information.
+
+![](thinkcentre_m710s_spi_location.jpg)
+
+## Status
+
+### Working
+ * Ubuntu 22.04.1 (Linux 6.5.0) using payloads:
+   * SeaBIOS
+   * MrChromebox's EDK 2 fork
+   * Tianocore's EDK 2
+ * Internal flashing (from coreboot)
+ * PEG (PCIe Graphics)
+ * PCIe
+ * SATA
+ * M.2 SSD
+ * M.2 WLAN (+ Bluetooth)
+ * LAN
+ * USB
+ * Memory card reader
+ * CPU fan
+ * VGA
+ * Display ports
+ * Audio (output)
+ * COM1
+ * TPM
+
+### Not working
+ * Super I/O not well supported (there may be some minor issues)
+ * Power button LED
+ * ME cleaner
+
+### Untested
+ * Audio (input)
+ * COM2 header
+ * LPT header
+ * PS/2 keyboard and mouse
+
+[Lenovo ThinkCentre M710s]: https://www.lenovo.com/us/en/p/desktops/thinkcentre/m-series-sff/thinkcentre-m710s/11tc1md710s
+[hardware maintenance manual]: https://download.lenovo.com/pccbbs/thinkcentre_pdf/m710s_ug_hmm_en.pdf
+[Removing the computer cover]: https://download.lenovo.com/pccbbs/thinkcentre_pdf/m710s_ug_hmm_en.pdf#page=28
+[Replacing the storage drive]: https://download.lenovo.com/pccbbs/thinkcentre_pdf/m710s_ug_hmm_en.pdf#page=31
+[datasheet]: https://www.winbond.com/hq/product/code-storage-flash-memory/serial-nor-flash/?__locale=en&partNo=W25Q64JV
+[flashing firmware tutorial]: ../../tutorial/flashing_firmware/index.md