diff options
Diffstat (limited to 'src/soc/intel/apollolake/acpi')
| -rw-r--r-- | src/soc/intel/apollolake/acpi/cpu.asl | 118 | ||||
| -rw-r--r-- | src/soc/intel/apollolake/acpi/globalnvs.asl | 7 | ||||
| -rw-r--r-- | src/soc/intel/apollolake/acpi/lpc.asl | 23 | ||||
| -rw-r--r-- | src/soc/intel/apollolake/acpi/southbridge.asl | 3 |
4 files changed, 150 insertions, 1 deletions
diff --git a/src/soc/intel/apollolake/acpi/cpu.asl b/src/soc/intel/apollolake/acpi/cpu.asl new file mode 100644 index 0000000000..a202cebc0e --- /dev/null +++ b/src/soc/intel/apollolake/acpi/cpu.asl @@ -0,0 +1,118 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2014 Google Inc. + * + * 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; version 2 of the License. + * + * 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. + */ + +/* These devices are created at runtime */ +External (\_PR.CP00, DeviceObj) +External (\_PR.CP01, DeviceObj) +External (\_PR.CP02, DeviceObj) +External (\_PR.CP03, DeviceObj) +External (\_PR.CP04, DeviceObj) +External (\_PR.CP05, DeviceObj) +External (\_PR.CP06, DeviceObj) +External (\_PR.CP07, DeviceObj) + +/* Notify OS to re-read CPU tables, assuming ^2 CPU count */ +Method (PNOT) +{ + If (LGreaterEqual (\PCNT, 2)) { + Notify (\_PR.CP00, 0x81) // _CST + Notify (\_PR.CP01, 0x81) // _CST + } + If (LGreaterEqual (\PCNT, 4)) { + Notify (\_PR.CP02, 0x81) // _CST + Notify (\_PR.CP03, 0x81) // _CST + } + If (LGreaterEqual (\PCNT, 8)) { + Notify (\_PR.CP04, 0x81) // _CST + Notify (\_PR.CP05, 0x81) // _CST + Notify (\_PR.CP06, 0x81) // _CST + Notify (\_PR.CP07, 0x81) // _CST + } +} + +/* Notify OS to re-read CPU _PPC limit, assuming ^2 CPU count */ +Method (PPCN) +{ + If (LGreaterEqual (\PCNT, 2)) { + Notify (\_PR.CP00, 0x80) // _PPC + Notify (\_PR.CP01, 0x80) // _PPC + } + If (LGreaterEqual (\PCNT, 4)) { + Notify (\_PR.CP02, 0x80) // _PPC + Notify (\_PR.CP03, 0x80) // _PPC + } + If (LGreaterEqual (\PCNT, 8)) { + Notify (\_PR.CP04, 0x80) // _PPC + Notify (\_PR.CP05, 0x80) // _PPC + Notify (\_PR.CP06, 0x80) // _PPC + Notify (\_PR.CP07, 0x80) // _PPC + } +} + +/* Notify OS to re-read Throttle Limit tables, assuming ^2 CPU count */ +Method (TNOT) +{ + If (LGreaterEqual (\PCNT, 2)) { + Notify (\_PR.CP00, 0x82) // _TPC + Notify (\_PR.CP01, 0x82) // _TPC + } + If (LGreaterEqual (\PCNT, 4)) { + Notify (\_PR.CP02, 0x82) // _TPC + Notify (\_PR.CP03, 0x82) // _TPC + } + If (LGreaterEqual (\PCNT, 8)) { + Notify (\_PR.CP04, 0x82) // _TPC + Notify (\_PR.CP05, 0x82) // _TPC + Notify (\_PR.CP06, 0x82) // _TPC + Notify (\_PR.CP07, 0x82) // _TPC + } +} + +/* Return a package containing enabled processor entries */ +Method (PPKG) +{ + If (LGreaterEqual (\PCNT, 8)) { + Return (Package() + { + \_PR.CP00, + \_PR.CP01, + \_PR.CP02, + \_PR.CP03, + \_PR.CP04, + \_PR.CP05, + \_PR.CP06, + \_PR.CP07 + }) + } ElseIf (LGreaterEqual (\PCNT, 4)) { + Return (Package () + { + \_PR.CP00, + \_PR.CP01, + \_PR.CP02, + \_PR.CP03 + }) + } ElseIf (LGreaterEqual (\PCNT, 2)) { + Return (Package () + { + \_PR.CP00, + \_PR.CP01 + }) + } Else { + Return (Package () + { + \_PR.CP00 + }) + } +} diff --git a/src/soc/intel/apollolake/acpi/globalnvs.asl b/src/soc/intel/apollolake/acpi/globalnvs.asl index 2ef5031ebf..e081dcb60b 100644 --- a/src/soc/intel/apollolake/acpi/globalnvs.asl +++ b/src/soc/intel/apollolake/acpi/globalnvs.asl @@ -26,8 +26,13 @@ External (NVSA) OperationRegion (GNVS, SystemMemory, NVSA, 0x1000) Field (GNVS, ByteAcc, NoLock, Preserve) { - /* Nothing here yet, folks */ + /* Miscellaneous */ Offset (0x00), + PCNT, 8, // 0x01 - Processor Count + PPCM, 8, // 0x02 - Max PPC State + LIDS, 8, // 0x03 - LID State + PWRS, 8, // 0x04 - AC Power State + DPTE, 8, // 0x05 - Enable DPTF /* ChromeOS stuff (0x100 -> 0xfff, size 0xeff) */ Offset (0x100), diff --git a/src/soc/intel/apollolake/acpi/lpc.asl b/src/soc/intel/apollolake/acpi/lpc.asl new file mode 100644 index 0000000000..749daf78b1 --- /dev/null +++ b/src/soc/intel/apollolake/acpi/lpc.asl @@ -0,0 +1,23 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2007-2009 coresystems GmbH + * Copyright (C) 2013 Google Inc. + * + * 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; version 2 of + * the License. + * + * 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. + */ + +/* Intel LPC Bus Device - 0:1f.0 */ + +Device (LPCB) +{ + Name (_ADR, 0x001f0000) +} diff --git a/src/soc/intel/apollolake/acpi/southbridge.asl b/src/soc/intel/apollolake/acpi/southbridge.asl index 9409d5e7d4..44c440e95b 100644 --- a/src/soc/intel/apollolake/acpi/southbridge.asl +++ b/src/soc/intel/apollolake/acpi/southbridge.asl @@ -27,3 +27,6 @@ #include "gpio.asl" #include "xhci.asl" + +/* LPC */ +#include "lpc.asl" |