
Yesterday the Intel CPU microcode updates were removed from the Coreboot main Git repository, but that's only because they moved them over to Coreboot's binary-only Git repository. For those that haven't looked at it before, Coreboot's Blobs.git provides a look at the various binary-only blobs needed by some CPUs/motherboards/chipsets for Coreboot operation.
Aside from the Intel coverage, Qualcomm and Samsung CPUs (for newer Exynos 5250/5420 SoCs) have support blobs too. The only AMD CPU blob is for the Geode LX. However, when it comes to the chipsets (Northbridge/Southbridge) there are AMD blobs as with Intel too. For motherboards there's blobs for various Google Chromebooks, the Intel Emerald Lake 2 CRB, and two Chromebook Samsung devices.
For those seeking a blob-free environment, there's the Libreboot downstream of Coreboot. However, this 100% free software Libreboot only works with the ThinkPad T60/X60 series, ThinkPad X200, and Apple MacBook 2,1.
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