JTAG/BSDL Guide

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The wiki is being retired!

Documentation is now handled by the same processes we use for code: Add something to the Documentation/ directory in the coreboot repo, and it will be rendered to https://doc.coreboot.org/. Contributions welcome!

This document is a work in progress.

What is JTAG?

Why JTAG?

If you are designing a new hardware and you are interested in supporting LinuxBIOS, you should make a JTAG port available and select chips which allow programming via JTAG.

How can I connect to a JTAG port from Linux?

External JTAG Links