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author | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2012-04-27 23:19:58 +0200 |
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committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2012-04-30 23:09:10 +0200 |
commit | 155e9b5533131f4b944ebb7e5714a871a1294dda (patch) | |
tree | 6d3cbc7a1442648560f94675a34268bbe1671e17 /src/mainboard/samsung/lumpy/acpi/platform.asl | |
parent | 6651da3bcd51ad6ea918c21564eb505b76c8c7aa (diff) | |
download | coreboot-155e9b5533131f4b944ebb7e5714a871a1294dda.tar.xz |
Add support for Sandybridge based Samsung ChromeBook
Change-Id: I8bf439bc903c1ec105016866753c7cb9ccfe5974
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/952
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/mainboard/samsung/lumpy/acpi/platform.asl')
-rw-r--r-- | src/mainboard/samsung/lumpy/acpi/platform.asl | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/src/mainboard/samsung/lumpy/acpi/platform.asl b/src/mainboard/samsung/lumpy/acpi/platform.asl new file mode 100644 index 0000000000..39a29e7168 --- /dev/null +++ b/src/mainboard/samsung/lumpy/acpi/platform.asl @@ -0,0 +1,117 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2007-2009 coresystems GmbH + * + * 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) +} + +/* The _PTS method (Prepare To Sleep) is called before the OS is + * entering a sleep state. The sleep state number is passed in Arg0 + */ + +Method(_PTS,1) +{ + Store (Zero, GP35) // Disable WLAN + Store (Zero, GP38) // Disable WWAN + + If (S33G) { + Store (Zero, GP43) // Enable HSPA + } Else { + Store (One, GP43) // Disable HSPA + } + + If (LEqual (Arg0, 3)) { + // NVS has a flag to determine USB policy in S3 + If (S3U0) { + Store (One, GP47) // Enable USB0 + } Else { + Store (Zero, GP47) // Disable USB0 + } + + // NVS has a flag to determine USB policy in S3 + If (S3U1) { + Store (One, GP56) // Enable USB1 + } Else { + Store (Zero, GP56) // Disable USB1 + } + } + If (LEqual (Arg0, 5)) { + // NVS has a flag to determine USB policy in S5 + If (S5U0) { + Store (One, GP47) // Enable USB0 + } Else { + Store (Zero, GP47) // Disable USB0 + } + + // NVS has a flag to determine USB policy in S5 + If (S5U1) { + Store (One, GP56) // Enable USB1 + } Else { + Store (Zero, GP56) // Disable USB1 + } + } +} + +/* The _WAK method is called on system wakeup */ + +Method(_WAK,1) +{ + /* Update in case state changed while asleep */ + Store (\_SB.PCI0.LPCB.EC0.ACEX, \PWRS) + + /* Enable OS control of fan */ + Store (One, \_SB.PCI0.LPCB.EC0.FCOS) + + Return(Package(){0,0}) +} + |