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→bootrom_ipatch
=== bootrom_ipatch ===
=== bootrom_ipatch ===
Tegra210 based hardware such as the Switch provides support for bootrom patches. The patch data is burned to the hardware fuse array using a specific format (see [https://gist.github.com/shuffle2/f8728159da100e9df2606d43925de0af shuffle2's ipatch decoder]) and is executed by the bootrom, replacing it's original code.
Tegra210 based hardware such as the Switch provides support for bootrom patches. The patch data is burned to the hardware fuse array using a specific format (see [https://gist.github.com/shuffle2/f8728159da100e9df2606d43925de0af shuffle2's ipatch decoder]). The bootrom reads these fuses in order to initialize the IPATCH hardware, which allows overriding data returned for code and data fetches done by BPMP.
The revision stored in FUSE_CP_REV indicates the unique set of values stored in ipatch fuses.
The following represents the patch data dumped from a 2.0.0 Switch console:
The following represents the patch data dumped from a 2.0.0 Switch console: