tree ff913b3fd70eddc92d544026a4504d9de5d82208
parent 82897c9c4f15880a7efa21c4e11a0929975384a1
author Raul E Rangel <rrangel@chromium.org> 1636129764 -0600
committer Raul Rangel <rrangel@chromium.org> 1636402801 +0000

drivers/intel/fsp2_0: Add preload_fspm and preload_fsps

In the non-XIP world, FSP is normally memmapped and then decompressed.
The AMD SPI DMA controller can actually read faster than mmap. So by
reading the contents into a buffer and then decompressing we reduce boot
time.

BUG=b:179699789
TEST=Boot guybrush and see 30ms reduction in boot time

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I28d7530ae9e50f743e3d6c86a5a29b1fa85cacb6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58987
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>