77 lines
2.0 KiB
Markdown
77 lines
2.0 KiB
Markdown
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# Rutundu
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This page describes how to run coreboot on the [Rotundu] compute board
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from [OpenCellular].
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## TODO
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* Configure UART
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* EC interface
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## Flashing coreboot
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```eval_rst
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+---------------------+------------+
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| Type | Value |
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+=====================+============+
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| Socketed flash | no |
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+---------------------+------------+
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| Model | W25Q128 |
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+---------------------+------------+
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| Size | 16 MiB |
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+---------------------+------------+
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| In circuit flashing | yes |
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+---------------------+------------+
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| Package | SOIC-8 |
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+---------------------+------------+
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| Write protection | No |
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+---------------------+------------+
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| Dual BIOS feature | No |
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+---------------------+------------+
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| Internal flashing | yes |
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+---------------------+------------+
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```
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### Internal programming
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The SPI flash can be accessed using [flashrom].
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### External programming
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The GBCv1 board does have a pinheader to flash the SOIC-8 in circuit.
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Directly connecting a Pomona test-clip on the flash is also possible.
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**Closeup view of SOIC-8 flash IC**
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![][rotundu_flash]
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[rotundu_flash]: rotundu_flash.jpg
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**SPI header**
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![][rotundu_header2]
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[rotundu_header2]: rotundu_header2.jpg
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**SPI header pinout**
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Dediprog compatible pinout.
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![][rotundu_j16]
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[rotundu_j16]: rotundu_j16.png
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## Technology
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```eval_rst
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+------------------+--------------------------------------------------+
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| SoC | Intel Baytrail |
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+------------------+--------------------------------------------------+
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| Coprocessor | Intel ME |
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+------------------+--------------------------------------------------+
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```
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[Rotundu]: https://github.com/Telecominfraproject/OpenCellular
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[OpenCellular]: https://code.fb.com/connectivity/introducing-opencellular-an-open-source-wireless-access-platform/
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[flashrom]: https://flashrom.org/Flashrom
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