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

	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 <>
Signed-off-by: Paul Menzel <>
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <>
Reviewed-by: Werner Zeh
Reviewed-by: Marc Jones <>
4 files changed