diff options
Diffstat (limited to 'resources/libreboot/patch/0010-mainboard-lenovo-t400-Add-initial-ATPX-ACPI-implemen.patch')
| -rw-r--r-- | resources/libreboot/patch/0010-mainboard-lenovo-t400-Add-initial-ATPX-ACPI-implemen.patch | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/resources/libreboot/patch/0010-mainboard-lenovo-t400-Add-initial-ATPX-ACPI-implemen.patch b/resources/libreboot/patch/0010-mainboard-lenovo-t400-Add-initial-ATPX-ACPI-implemen.patch new file mode 100644 index 0000000..2c0d10e --- /dev/null +++ b/resources/libreboot/patch/0010-mainboard-lenovo-t400-Add-initial-ATPX-ACPI-implemen.patch @@ -0,0 +1,138 @@ +From 83483e772d5b19b52b82e2518805be2e305e6a27 Mon Sep 17 00:00:00 2001 +From: Timothy Pearson <tpearson@raptorengineeringinc.com> +Date: Sun, 5 Apr 2015 23:22:18 -0500 +Subject: [PATCH 10/22] mainboard/lenovo/t400: Add initial ATPX ACPI + implementation + +Change-Id: I9b86ebec59ccb63db0e1ba61533d162507a22379 +Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> +--- + src/mainboard/lenovo/t400/acpi/graphics.asl | 101 ++++++++++++++++++++++++++++ + src/mainboard/lenovo/t400/dsdt.asl | 3 + + 2 files changed, 104 insertions(+) + create mode 100644 src/mainboard/lenovo/t400/acpi/graphics.asl + +diff --git a/src/mainboard/lenovo/t400/acpi/graphics.asl b/src/mainboard/lenovo/t400/acpi/graphics.asl +new file mode 100644 +index 0000000..e928d77 +--- /dev/null ++++ b/src/mainboard/lenovo/t400/acpi/graphics.asl +@@ -0,0 +1,101 @@ ++/* ++ * This file is part of the coreboot project. ++ * ++ * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering ++ * ++ * 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. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA ++ */ ++ ++/* WARNING ++ * Switchable graphics not yet tested! ++ */ ++ ++/* Hybrid graphics enable/disable GPIO bitfields */ ++Name (HYG1, 0x004A0000) ++Name (HYG2, 0x00020000) ++ ++/* GPIO control port */ ++Name (GPCP, DEFAULT_GPIOBASE) ++ ++/* GPIO control map */ ++OperationRegion (GPCM, SystemIO, GPCP, 0x3F) ++Field (GPCM, ByteAcc, NoLock, Preserve) { ++ GPUS, 32, ++ GPIS, 32, ++ Offset (0x0C), ++ GPLV, 32, ++ Offset (0x30), ++ GQUS, 32, ++ GQIS, 32, ++ GQLV, 32 ++} ++ ++Method(SHYB, 1) { ++ /* Switch hybrid graphics */ ++ if (LEqual(Arg0, One)) ++ { ++ /* Discrete graphics requested */ ++ Or(GPLV, HYG1, GPLV) ++ Or(GQLV, HYG2, GQLV) ++ } ++ else ++ { ++ /* Integrated graphics requested */ ++ Xor(HYG1, 0xFFFFFFFF, Local0) ++ And(GPLV, Local0, GPLV) ++ Xor(HYG2, 0xFFFFFFFF, Local0) ++ And(GQLV, Local0, GQLV) ++ } ++} ++ ++Method (ATPX, 2, NotSerialized) { ++ /* Create local variables */ ++ Name (ATPR, Buffer (0x08) { ++ 0x0, 0x0, 0x0, 0x0, ++ 0x0, 0x0, 0x0, 0x0 ++ }) ++ CreateWordField (ATPR, 0x00, SIZE) ++ CreateWordField (ATPR, 0x02, VERS) ++ CreateDWordField (ATPR, 0x02, MASK) ++ CreateDWordField (ATPR, 0x04, FUNC) ++ CreateDWordField (ATPR, 0x06, FLAG) ++ ++ /* Version request */ ++ if (LEqual(Arg0, 0x0)) ++ { ++ /* Assemble and return version information */ ++ Store (0x08, SIZE) /* Response length */ ++ Store (0x01, VERS) /* Version number */ ++ Store (0x0F, FUNC) /* Supported functions? */ ++ Return (ATPR) ++ } ++ ++ /* Mux select */ ++ if (LEqual(Arg0, 0x2)) ++ { ++ CreateByteField (Arg1, 0x02, PWST) ++ Store (PWST, Local0) ++ And (Local0, 0x01, Local0) ++ If (Local0) ++ { ++ /* Enable discrete graphics */ ++ SHYB(0x01) ++ } ++ else ++ { ++ /* Enable integrated graphics */ ++ SHYB(0x00) ++ } ++ } ++} +diff --git a/src/mainboard/lenovo/t400/dsdt.asl b/src/mainboard/lenovo/t400/dsdt.asl +index 0409e66..d2582ce 100644 +--- a/src/mainboard/lenovo/t400/dsdt.asl ++++ b/src/mainboard/lenovo/t400/dsdt.asl +@@ -54,6 +54,9 @@ DefinitionBlock( + /* Chipset specific sleep states */ + #include <southbridge/intel/i82801ix/acpi/sleepstates.asl> + ++ /* Hybrid graphics support code */ ++ #include "acpi/graphics.asl" ++ + /* Dock support code */ + #include "acpi/dock.asl" + } +-- +1.9.1 + |