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coreboot-kgpe-d16/Documentation/mainboard/asus/wifigo_v1.md
Bill XIE 8dd8f66807 mb/asus/p8z77-series: Add P8Z77-V as a variant of P8Z77 series 
Mainboard information can be found in the included documentation.

Signed-off-by: Bill XIE <persmule@hardenedlinux.org>
Change-Id: Ic56ac0e5f93a6e818ef0666e41996718471b1cf6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54338
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-06-14 05:31:50 +00:00

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Asus Wi-Fi Go! v1

In this version, a standard half-length mPCIe card is mounted on the Asus Wi-Fi Go! daughter board, and the daughter board is connected to the motherboard through a proprietary 16-1 pin connector.

I managed to grope the most pinout of the proprietary connector. See Mini PCIe pinout for more info.

+------------+----------+-----------+------------+----------+-----------+
| WIFIGO Pin | Usage    | mPCIe pin | WIFIGO Pin | Usage    | mPCIe pin |
+============+==========+===========+============+==========+===========+
| 1          | 3.3v     | (many)    | 2          | REFCLK-  | 11        |
+------------+----------+-----------+------------+----------+-----------+
| 3          | GND      | (many)    | 4          | REFCLK+  | 13        |
+------------+----------+-----------+------------+----------+-----------+
| 5          | WAKE#    | 1         | 6          | PERn0    | 23        |
+------------+----------+-----------+------------+----------+-----------+
| 7          | (absent) |           | 8          | PERp0    | 25        |
+------------+----------+-----------+------------+----------+-----------+
| 9          | GND      |           | 10         | PETn0    | 31        |
+------------+----------+-----------+------------+----------+-----------+
| 11         | PERST#   | 20        | 12         | PETp0    | 33        |
+------------+----------+-----------+------------+----------+-----------+
| 13         | GND      |           | 14         | (USBD-?) | (36?)     |
+------------+----------+-----------+------------+----------+-----------+
| 15         | 3.3v     |           | 16         | (USBD+?) | (38?)     |
+------------+----------+-----------+------------+----------+-----------+

There are two kinds of daughter boards using this connector. One among them has one MMCX antenna connector, the other has two antenna connectors and USB lane wired (this kind may be called BT Go!). I can only obtain the former, so I cannot confirm the exact way the USB data lane gets wired.

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