According to Intel's recommendation for Time Coordinated Computing (TCC)
the FSP-S parameter PchLegacyIoLowLatency should be set to 'Enabled'
in order to promote low latencies on the PCH.
With the previous setting 'Disabled' low latencies on the PCH for
I/O operations are not enhanced.
Change-Id: I009cc10fee1f2cf2e2d7e6329cf98d2f95ea77b5
Signed-off-by: Johannes Hahn <johannes-hahn@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/86068
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
20bee312f4