the following patch was just integrated into master: commit 32cb934fba946ce23416d7e78e59e87541be51c3 Author: Paul Menzel paulepanter@users.sourceforge.net Date: Tue Feb 11 10:38:27 2014 +0100
intel/*/acpi: Increase range length of MCHBAR buffer to 32 kB
Linux kernel 2.6.31 reports the warning below on Intel Ivy Bridge (with FSP).
resource map sanity check conflict: 0xfed10000 0xfed17fff 0xfed10000 0xfed13fff pnp 00:01
Since Sandy Bridge the length of the MCHBAR is 32 kB and it is already used that way in other places.
$ more src/northbridge/intel/fsp_sandybridge/acpi/hostbridge.asl […] OperationRegion (MCHB, SystemMemory, DEFAULT_MCHBAR, 0x8000) […]
So instead of 16 kB specify that 32 kB are decoded in that memory range for Intel Sandy Bridge, Ivy Bridge and Haswell.
(Linux kernel 3.10 does not warn about that.)
Change-Id: Ie7a9356d9051c807833df85e4a806e5a9498473f Reported-by: Norwich in #coreboot on <irc.freenode.org> Signed-off-by: Paul Menzel paulepanter@users.sourceforge.net
See http://review.coreboot.org/5192 for details.
-gerrit