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# Rutundu
This page describes how to run coreboot on the [Rotundu] compute board
from [OpenCellular].
## TODO
* Configure UART
* EC interface
## Flashing coreboot
```eval_rst
+---------------------+------------+
| 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**
![][rotundu_flash]
[rotundu_flash]: rotundu_flash.jpg
**SPI header**
![][rotundu_header2]
[rotundu_header2]: rotundu_header2.jpg
**SPI header pinout**
Dediprog compatible pinout.
![][rotundu_j16]
[rotundu_j16]: rotundu_j16.png
## Technology
```eval_rst
+------------------+--------------------------------------------------+
| SoC | Intel Baytrail |
+------------------+--------------------------------------------------+
| Coprocessor | Intel ME |
+------------------+--------------------------------------------------+
```
[Rotundu]: https://github.com/Telecominfraproject/OpenCellular
[OpenCellular]: https://code.fb.com/connectivity/introducing-opencellular-an-open-source-wireless-access-platform/
[flashrom]: https://flashrom.org/Flashrom
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