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| author | Matt DeVillier <matt.devillier@gmail.com> | 2017-06-04 14:39:18 -0500 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2018-03-07 21:19:10 +0000 |
| commit | 687eb30dd869c43aeb1e2fc1964f520feb0f6d8e (patch) | |
| tree | 140eb66367696e49cd36b08c15c5270e08a55989 /src | |
| parent | df2ae96ad8a83fb47d6cdff50353ad28b36ae87a (diff) | |
| download | coreboot-687eb30dd869c43aeb1e2fc1964f520feb0f6d8e.tar.xz | |
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>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/intel/braswell/acpi/southcluster.asl | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/soc/intel/braswell/acpi/southcluster.asl b/src/soc/intel/braswell/acpi/southcluster.asl index 19a58d119c..f7e3168126 100644 --- a/src/soc/intel/braswell/acpi/southcluster.asl +++ b/src/soc/intel/braswell/acpi/southcluster.asl @@ -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) |