diff options
| author | Matt DeVillier <matt.devillier@gmail.com> | 2020-12-18 19:05:09 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2021-01-04 23:11:26 +0000 |
| commit | 6a7b707d11aac6c426a4edde04db240e8ce7da28 (patch) | |
| tree | 3ad7daf5358ba7a8147268e779a02bdb643ab74c /src/soc | |
| parent | 33a68e467606e3f82626418bb12ace4915fe01ac (diff) | |
soc/intel/baytrail: add LPEA resources to southcluster.asl
The LPEA device memory resources, required by Windows drivers,
were not being set. Allocate required resources using
soc/intel/braswell/acpi/southcluster.asl as a reference.
This patch alone is not sufficient for working audio under Windows
on Baytrail ChromeOS devices, but it is a necessary component.
Test: boot Windows 10 on google/swanky, observe LPEA device working properly.
Change-Id: I7994d9b2c6e134c01b05cd7c61d309b6ba6e88e5
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48745
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/baytrail/acpi/southcluster.asl | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/src/soc/intel/baytrail/acpi/southcluster.asl b/src/soc/intel/baytrail/acpi/southcluster.asl index f59f2406ef..05d6b0d1ab 100644 --- a/src/soc/intel/baytrail/acpi/southcluster.asl +++ b/src/soc/intel/baytrail/acpi/southcluster.asl @@ -136,11 +136,17 @@ Name (MCRS, ResourceTemplate() 0x00000000, 0x000f0000, 0x000fffff, 0x00000000, 0x00010000,,, FSEG) - // PCI Memory Region (Top of memory-CONFIG_MMCONF_BASE_ADDRESS) + // LPEA Memory Region (0x20000000-0x201FFFFF) DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, Cacheable, ReadWrite, 0x00000000, 0x00000000, 0x00000000, 0x00000000, - 0x00000000,,, PMEM) + 0x00000000,,, LMEM) + + // PCI Memory Region (Top of memory-CONFIG_MMCONF_BASE_ADDRESS) + DwordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + Cacheable, ReadWrite, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000,,, PMEM) // TPM Area (0xfed40000-0xfed44fff) DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, @@ -152,10 +158,27 @@ Name (MCRS, ResourceTemplate() Method (_CRS, 0, Serialized) { + /* 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 (0x00100000, LLEN) + Subtract (Add (LMIN, LLEN), One, LMAX) + } + Else + { + Store (Zero, LMIN) + Store (Zero, LMAX) + Store (Zero, LLEN) + } + /* Update PCI resource area */ - CreateDwordField(MCRS, ^PMEM._MIN, PMIN) - CreateDwordField(MCRS, ^PMEM._MAX, PMAX) - CreateDwordField(MCRS, ^PMEM._LEN, PLEN) + CreateDWordField (MCRS, ^PMEM._MIN, PMIN) + CreateDWordField (MCRS, ^PMEM._MAX, PMAX) + CreateDWordField (MCRS, ^PMEM._LEN, PLEN) /* TOLM is BMBOUND accessible from IOSF so is saved in NVS */ Store (\TOLM, PMIN) |