diff options
Diffstat (limited to 'src/soc/intel/xeon_sp/acpi/gen1/iiostack.asl')
| -rw-r--r-- | src/soc/intel/xeon_sp/acpi/gen1/iiostack.asl | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/src/soc/intel/xeon_sp/acpi/gen1/iiostack.asl b/src/soc/intel/xeon_sp/acpi/gen1/iiostack.asl new file mode 100644 index 000000000000..0dd39a0f5464 --- /dev/null +++ b/src/soc/intel/xeon_sp/acpi/gen1/iiostack.asl @@ -0,0 +1,73 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#define MAKE_IIO_DEV(id,rt) \ + Device (PC##id) \ + { \ + Name (_HID, EisaId ("PNP0A08") /* PCI Express Bus */) \ + Name (_CID, EisaId ("PNP0A03") /* PCI Bus */) \ + Name (_UID, 0x##id) \ + Method (_PRT, 0, NotSerialized) \ + { \ + If (PICM) \ + { \ + Return (\_SB_.AR##rt) \ + } \ + Return (\_SB_.PR##rt) \ + } \ + Name (SUPP, 0x00) \ + Name (CTRL, 0x00) \ + Name (_PXM, 0x00) /* _PXM: Device Proximity */ \ + Method (_OSC, 4, NotSerialized) \ + { \ + CreateDWordField (Arg3, 0x00, CDW1) \ + If ((Arg0 == ToUUID ("33db4d5b-1ff7-401c-9657-7441c03dd766") /* PCI Host Bridge Device */)) \ + { \ + If (Arg2 < 0x03) \ + { \ + CDW1 |= 0x02 /* Unknown failure */ \ + Return (Arg3) \ + } \ + CreateDWordField (Arg3, 0x04, CDW2) \ + CreateDWordField (Arg3, 0x08, CDW3) \ + SUPP = CDW2 \ + CTRL = CDW3 \ + If ((SUPP & 0x16) != 0x16) \ + { \ + CTRL &= 0x1E \ + } \ + /* Never allow SHPC (no SHPC controller in system) */ \ + CTRL &= 0x1D \ + /* Disable Native PCIe AER handling from OS */ \ + CTRL &= 0x17 \ + If ((Arg1 != 1)) /* unknown revision */ \ + { \ + CDW1 |= 0x08 \ + } \ + If ((CDW3 != CTRL)) /* capabilities bits were masked */ \ + { \ + CDW1 |= 0x10 \ + } \ + CDW3 = CTRL \ + Return (Arg3) \ + } \ + Else \ + { \ + /* indicate unrecognized UUID */ \ + CDW1 |= 0x04 \ + DBG0 = 0xEE \ + Return (Arg3) \ + } \ + } \ + } + +MAKE_IIO_DEV(00, 00) +MAKE_IIO_DEV(01, 10) +MAKE_IIO_DEV(02, 20) +MAKE_IIO_DEV(03, 28) + +#if (CONFIG_MAX_SOCKET > 1) +MAKE_IIO_DEV(06, 40) +MAKE_IIO_DEV(07, 50) +MAKE_IIO_DEV(08, 60) +MAKE_IIO_DEV(09, 68) +#endif |