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There are number of open firmware projects, some of which are listed below.
While all the firmware below is open source, some of it uses read-only firmware embedded in ROM chips and some of the read-only firmware does not have freely licensed public source code. Some of the devices in this situation do not have enough RAM that they could completely avoid the read-only firmware in the ROM chips.
The Open-Source Firmware Foundation (OSFF) promotes open firmware and the Open Source Firmware Conference (OSFC) has presentations on open firmware.
Booting
Project |
Debian package |
Description |
Comment |
initialising computers from reset |
only utils are built in Debian |
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initialising computers from reset, used on ARM a lot |
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initialising Raspberry Pi devices from reset |
original project on indefinite hold but librepi fork is alive, toolchain not upstreamed |
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UEFI |
hardware support not packaged in Debian |
Embedded controllers
Project |
Debian package |
Description |
Comment |
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Chromebooks |
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Intel Programmable Services Engine ARM Cortex-M7 companion cores |
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System76 Open Source Embedded Controller |
System76 laptops |
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Dasharo fork of System76 Open Source Embedded Controller |
Clevo/NovaCustom laptops |
Keyboards
Network
Project |
Debian package |
Description |
Comment |
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BCM5719 firmware reimplementation |
Requires LLVM/Clang fork to build |
Radio
Project |
Debian package |
Description |
Comment |
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Broadcom/AirForce chipset based WiFi devices |
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Qualcomm Atheros AR7010 and AR9271 USB based WiFi devices |
requires binutils/GCC patches |
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Atheros AR9170 based WiFi devices |
not built from source in Debian; needs sh-elf toolchain, no patches needed |
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Conexant based WiFi devices |
no longer developed, Subversion repository was lost, only a snapshot of the code remains |
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ESP32 WiFi devices |
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GSM devices |
not suitable for end users, only researchers |
Audio
Project |
Debian package |
Description |
Comment |
various Intel audio devices |
most devices that can run SOF require Intel signatures on the binaries (1 2 3 4 5) |
Visual
Project |
Debian package |
Description |
Comment |
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?ColorHug family of open display colorimeter hardware |
Requires a proprietary toolchain to build |
Misc
Project |
Debian package |
Description |
Comment |
misc firmware gathered by Linux developers |
not built from source in Debian |
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Cypress FX/FX2 code library |
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Cypress FX2(LP) based logic analyzers |
embeds copy of fx2lib |