coreboot-kgpe-d16/Documentation/mainboard/opencellular/rotundu.md
Patrick Rudolph b461865577 Documentation: Add Rotundu
Add information about flash and programming header.

Change-Id: If34016e20dd580f92695bef5b67dd0c282b0b421
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32894
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2019-05-21 14:23:34 +00:00

2 KiB

Rutundu

This page describes how to run coreboot on the Rotundu compute board from OpenCellular.

TODO

  • Configure UART
  • EC interface

Flashing coreboot

+---------------------+------------+
| Type                | Value      |
+=====================+============+
| Socketed flash      | no         |
+---------------------+------------+
| Model               | W25Q128    |
+---------------------+------------+
| Size                | 16 MiB     |
+---------------------+------------+
| In circuit flashing | yes        |
+---------------------+------------+
| Package             | SOIC-8     |
+---------------------+------------+
| Write protection    | No         |
+---------------------+------------+
| Dual BIOS feature   | No         |
+---------------------+------------+
| Internal flashing   | yes        |
+---------------------+------------+

Internal programming

The SPI flash can be accessed using flashrom.

External programming

The GBCv1 board does have a pinheader to flash the SOIC-8 in circuit. Directly connecting a Pomona test-clip on the flash is also possible.

Closeup view of SOIC-8 flash IC

SPI header

SPI header pinout

Dediprog compatible pinout.

Technology

+------------------+--------------------------------------------------+
| SoC              | Intel Baytrail                                   |
+------------------+--------------------------------------------------+
| Coprocessor      | Intel ME                                         |
+------------------+--------------------------------------------------+