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soc/intel/braswell: add LPEA resources to southcluster.asl 

The LPEA device memory resources, required by Windows drivers,
were not being set.  Allocate required resources per Inte'sl CHT
Tianocore reference code.

Test: boot Windows on google/edgar, observe LPEA device working properly.

Change-Id: Ic3ecfc2ddade7d76dbaa95ffdd82599c3bcf35da
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/24987
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
This commit is contained in:
Matt DeVillier 2017-06-04 14:39:18 -05:00 committed by Martin Roth
parent df2ae96ad8
commit 687eb30dd8
1 changed files with 23 additions and 0 deletions
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23
src/soc/intel/braswell/acpi/southcluster.asl
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@ -153,6 +153,12 @@ Method (_CRS, 0, Serialized)
0x00000000, 0x000f0000, 0x000fffff, 0x00000000,
0x00010000,,, FSEG)
/* LPEA Memory Region (0x20000000-0x201FFFFF) */
DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
Cacheable, ReadWrite,
0x00000000, 0x20000000, 0x201FFFFF, 0x00000000,
0x00200000,,, LMEM)
/* PCI Memory Region (Top of memory-0xfeafffff) */
DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
Cacheable, ReadWrite,
@ -166,6 +172,23 @@ Method (_CRS, 0, Serialized)
0x00005000,,, TPMR)
})
/* Update LPEA resource area */
CreateDWordField (MCRS, LMEM._MIN, LMIN)
CreateDWordField (MCRS, LMEM._MAX, LMAX)
CreateDWordField (MCRS, LMEM._LEN, LLEN)
If (LAnd (LNotEqual (LPFW, Zero), LEqual (LPEN, One)))
{
Store (LPFW, LMIN)
Store (Add (LMIN, 0x001FFFFF), LMAX)
Store (0x00200000, LLEN)
}
Else
{
Store (Zero, LMIN)
Store (Zero, LMAX)
Store (Zero, LLEN)
}
/* Update PCI resource area */
CreateDwordField(MCRS, PMEM._MIN, PMIN)
CreateDwordField(MCRS, PMEM._MAX, PMAX)