diff options
author | Vladimir Serbinenko <phcoder@gmail.com> | 2015-05-17 00:20:52 +0200 |
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committer | Patrick Georgi <pgeorgi@google.com> | 2015-05-26 08:53:12 +0200 |
commit | e288758b0388f11650ca080dfda674bf31ba2268 (patch) | |
tree | dc6c9a79c671745a0fc6b4397f6665cfebea98cc /src/southbridge/intel/bd82x6x/acpi/platform.asl | |
parent | 1f8e4cbd5392acdde28e0125aa111ec01a2f6bd2 (diff) |
bd82x6x: Merge common platform ASL code.
This code in reality just describes the southbridge features, don't put a copy
in every mainboard.
Change-Id: I8cf3019a36b1ae6a17d502e7508f36ea9fa62830
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/10231
Reviewed-by: Nicolas Reinecke <nr@das-labor.org>
Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/southbridge/intel/bd82x6x/acpi/platform.asl')
-rw-r--r-- | src/southbridge/intel/bd82x6x/acpi/platform.asl | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/src/southbridge/intel/bd82x6x/acpi/platform.asl b/src/southbridge/intel/bd82x6x/acpi/platform.asl new file mode 100644 index 0000000000..61d119da92 --- /dev/null +++ b/src/southbridge/intel/bd82x6x/acpi/platform.asl @@ -0,0 +1,57 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011-2012 The Chromium OS Authors. All rights reserved. + * + * 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 + */ + +/* The APM port can be used for generating software SMIs */ + +OperationRegion (APMP, SystemIO, 0xb2, 2) +Field (APMP, ByteAcc, NoLock, Preserve) +{ + APMC, 8, // APM command + APMS, 8 // APM status +} + + +/* Port 80 POST */ + +OperationRegion (POST, SystemIO, 0x80, 1) +Field (POST, ByteAcc, Lock, Preserve) +{ + DBG0, 8 +} + +/* SMI I/O Trap */ +Method(TRAP, 1, Serialized) +{ + Store (Arg0, SMIF) // SMI Function + Store (0, TRP0) // Generate trap + Return (SMIF) // Return value of SMI handler +} + +/* The _PIC method is called by the OS to choose between interrupt + * routing via the i8259 interrupt controller or the APIC. + * + * _PIC is called with a parameter of 0 for i8259 configuration and + * with a parameter of 1 for Local Apic/IOAPIC configuration. + */ + +Method(_PIC, 1) +{ + // Remember the OS' IRQ routing choice. + Store(Arg0, PICM) +} |