diff options
| author | Andrey Petrov <anpetrov@fb.com> | 2020-03-16 22:46:57 -0700 |
|---|---|---|
| committer | Andrey Petrov <andrey.petrov@gmail.com> | 2020-03-26 02:06:45 +0000 |
| commit | 662da6cf7b181ea2787ba001d9cbb6d41916abec (patch) | |
| tree | 63a95b276913110c423c566db78b856650582ad3 /src/soc/intel/xeon_sp/skx/acpi/iiostack.asl | |
| parent | a1b15172d7f0303e8a1fe147a778d73d4dc26b1a (diff) | |
soc/intel/xeon_sp: Refactor code to allow for additional CPUs types
Refactor the code and split it into Xeon common and CPU-specific code.
Move most Skylake-SP code into skx/ and keep common code in the current
folder.
This is a preparation for future work that will enable next
generation server CPU.
TEST=Tested on OCP Tioga Pass. There does not seem to be degradation
of stability as far as I could tell.
Signed-off-by: Andrey Petrov <anpetrov@fb.com>
Change-Id: I448e6cfd6a85efb83d132ad26565557fe55a265a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39601
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel/xeon_sp/skx/acpi/iiostack.asl')
| -rw-r--r-- | src/soc/intel/xeon_sp/skx/acpi/iiostack.asl | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/src/soc/intel/xeon_sp/skx/acpi/iiostack.asl b/src/soc/intel/xeon_sp/skx/acpi/iiostack.asl new file mode 100644 index 0000000000..6750a4c56a --- /dev/null +++ b/src/soc/intel/xeon_sp/skx/acpi/iiostack.asl @@ -0,0 +1,90 @@ +/* + * This file is part of the coreboot project. + * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#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) \ + } \ + External(\_SB.RT##id) \ + Method (_CRS, 0, NotSerialized) \ + { \ + Return (\_SB.RT##id) \ + } \ + 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 */)) \ + { \ + CreateDWordField (Arg3, 0x04, CDW2) \ + If ((Arg2 > 0x02)) \ + { \ + CreateDWordField (Arg3, 0x08, CDW3) \ + } \ + SUPP = CDW2 \ + CTRL = CDW3 \ + If ((AHPE || ((SUPP & 0x16) != 0x16))) \ + { \ + CTRL &= 0x1E \ + Sleep (0x03E8) \ + } \ + /* Never allow SHPC (no SHPC controller in system) */ \ + CTRL &= 0x1D \ + /* Disable Native PCIe AER handling from OS */ \ + CTRL &= 0x17 \ + If ((Arg1 != One)) /* unknown revision */ \ + { \ + CDW1 |= 0x08 \ + } \ + If ((CDW3 != CTRL)) /* capabilities bits were masked */ \ + { \ + CDW1 |= 0x10 \ + } \ + CDW3 = CTRL \ + Return (Arg3) \ + } \ + Else \ + { \ + /* indicate unrecognized UUID */ \ + CDW1 |= 0x04 \ + IO80 = 0xEE \ + Return (Arg3) \ + } \ + } \ + } + +MAKE_IIO_DEV(00, 00) +MAKE_IIO_DEV(01, 10) +MAKE_IIO_DEV(02, 20) +MAKE_IIO_DEV(03, 28) + +#if MAX_SOCKET > 1 +MAKE_IIO_DEV(06, 40) +MAKE_IIO_DEV(07, 50) +MAKE_IIO_DEV(08, 60) +MAKE_IIO_DEV(09, 68) +#endif |