This page describes how to run coreboot on the Elgon compute board from OpenCellular.
+---------------------+------------+ | 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 | +---------------------+------------+
The SPI flash can be accessed using flashrom.
The EVT board does have a pinheader to flash the SOIC-8 in circuit. Directly connecting a Pomona test-clip on the flash is also possible.
Total board view of EVT
Closeup view of SOIC-8 flash IC and USB serial connector of EVT (marked blue)
SPI header (marked blue)
SPI header pinout
Dediprog compatible pinout.
+---------------+----------------------------------------+ | SoC | :doc:`../../soc/cavium/cn81xx/index` | +---------------+----------------------------------------+ | CPU | Cavium ARMv8-Quadcore `CN81XX`_ | +---------------+----------------------------------------+ .. _CN81XX: https://www.cavium.com/product-octeon-tx-cn80xx-81xx.html