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authorPatrick Georgi <pgeorgi@google.com>2021-11-03 10:11:35 +0000
committerPatrick Georgi <patrick@coreboot.org>2021-11-19 18:26:00 +0000
commitef164196cbe6d703366b61070b6b6f1a6bc0038f (patch)
tree18e4ee402faea6b171d2c5d2e264f46a7af0cdea /Documentation/soc/intel/fsp/index.md
parent7dce19080889955576f8fd197658077aced96a96 (diff)
Documentation: Add some notes about how to integrate FSP
While we don't _want_ FSP, we can't get around it sometimes. But when using it, we can still try to establish best practices to make life easier for everybody. Change-Id: I4efd273e4141dc6dc4cf8bdebda9cffd0d7cc1a1 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/58886 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Singer <felixsinger@posteo.net>
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This section contains documentation about Intel-FSP in public domain.
+## Integration Guidelines
+
+Some guiding principles when working on the glue to integrate FSP into
+coreboot, e.g. on how to configure a board in devicetree when that affects
+the way FSP works:
+
+* It should be possible to replace FSP based boot with a native coreboot
+ implementation for a given chipset without touching the mainboard code.
+* The devicetree configures coreboot and part of what coreboot does with the
+ information is setting some FSP UPDs. The devicetree isn't supposed to
+ directly configure FSP.
+
## Bugs
As Intel doesn't even list known bugs, they are collected here until
those are fixed. If possible a workaround is described here as well.