diff options
| author | Patrick Rudolph <patrick.rudolph@9elements.com> | 2020-02-11 16:44:43 +0100 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2020-02-12 18:37:15 +0000 |
| commit | 516f0acbb0af1d837c7844fb625271360b4b65ba (patch) | |
| tree | ba2c2b58c0521c56b176380a0fbb7f7c541b0ee8 /src | |
| parent | 3d27705d2741d9406409e8f18c4b4b47ca3e5a1a (diff) | |
nb/intel/sandybridge/acpi: Update PEG code
* Use new ACPI syntax
* Return either 0 or 0xf for PCI root port. That will make the
device show up in Windows. This might help users and possibly
Windows drivers working with PCIe ports.
Change-Id: I1e76b735ab1472f6a4ea493c733cd6b2e6fca29e
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38831
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Diffstat (limited to 'src')
| -rw-r--r-- | src/northbridge/intel/sandybridge/acpi/peg.asl | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/src/northbridge/intel/sandybridge/acpi/peg.asl b/src/northbridge/intel/sandybridge/acpi/peg.asl index f98a4ce083..fcec00ec67 100644 --- a/src/northbridge/intel/sandybridge/acpi/peg.asl +++ b/src/northbridge/intel/sandybridge/acpi/peg.asl @@ -20,8 +20,7 @@ Device (PEGP) Method (_STA) { - ShiftRight (\_SB.PCI0.MCHC.DVEN, 3, Local0) - Return (And (Local0, 1)) + Return (((\_SB.PCI0.MCHC.DVEN >> 3) & 1) * 0xf) } Device (DEV0) @@ -36,8 +35,7 @@ Device (PEG1) Method (_STA) { - ShiftRight (\_SB.PCI0.MCHC.DVEN, 2, Local0) - Return (And (Local0, 1)) + Return (((\_SB.PCI0.MCHC.DVEN >> 2) & 1) * 0xf) } Device (DEV0) @@ -52,8 +50,7 @@ Device (PEG2) Method (_STA) { - ShiftRight (\_SB.PCI0.MCHC.DVEN, 1, Local0) - Return (And (Local0, 1)) + Return (((\_SB.PCI0.MCHC.DVEN >> 1) & 1) * 0xf) } Device (DEV0) @@ -68,8 +65,7 @@ Device (PEG6) Method (_STA) { - ShiftRight (\_SB.PCI0.MCHC.DVEN, 13, Local0) - Return (And (Local0, 1)) + Return (((\_SB.PCI0.MCHC.DVEN >> 13) & 1) * 0xf) } Device (DEV0) |