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/*
* 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.
*/
Device (LPEA)
{
Name (_HID, "80860F28")
Name (_CID, "80860F28")
Name (_UID, 1)
Name (_DDN, "Low Power Audio Controller")
Name (_PR0, Package () { PLPE })
Name (RBUF, ResourceTemplate()
{
Memory32Fixed (ReadWrite, 0, 0x00200000, BAR0)
Memory32Fixed (ReadWrite, 0, 0x00001000, BAR1)
Memory32Fixed (ReadWrite, 0, 0x00100000, BAR2)
Interrupt (ResourceConsumer, Level, ActiveLow, Exclusive,,,)
{
LPE_DMA0_IRQ
}
Interrupt (ResourceConsumer, Level, ActiveLow, Exclusive,,,)
{
LPE_DMA1_IRQ
}
Interrupt (ResourceConsumer, Level, ActiveLow, Exclusive,,,)
{
LPE_SSP0_IRQ
}
Interrupt (ResourceConsumer, Level, ActiveLow, Exclusive,,,)
{
LPE_SSP1_IRQ
}
Interrupt (ResourceConsumer, Level, ActiveLow, Exclusive,,,)
{
LPE_SSP2_IRQ
}
Interrupt (ResourceConsumer, Level, ActiveLow, Exclusive,,,)
{
LPE_IPC2HOST_IRQ
}
})
Method (_CRS)
{
/* Update BAR0 from NVS */
CreateDwordField (^RBUF, ^BAR0._BAS, BAS0)
Store (\LPB0, BAS0)
/* Update BAR1 from NVS */
CreateDwordField (^RBUF, ^BAR1._BAS, BAS1)
Store (\LPB1, BAS1)
/* Update LPE FW from NVS */
CreateDwordField (^RBUF, ^BAR2._BAS, BAS2)
Store (\LPFW, BAS2)
/* Append any Mainboard defined GPIOs */
If (CondRefOf (^GBUF, Local0)) {
ConcatenateResTemplate (^RBUF, Local0, Local1)
Return (Local1)
}
Return (^RBUF)
}
Method (_STA)
{
If (LEqual (\LPEN, 1)) {
Return (0xF)
} Else {
Return (0x0)
}
}
OperationRegion (KEYS, SystemMemory, LPB1, 0x100)
Field (KEYS, DWordAcc, NoLock, WriteAsZeros)
{
Offset (0x84),
PSAT, 32,
}
PowerResource (PLPE, 0, 0)
{
Method (_STA)
{
Return (1)
}
Method (_OFF)
{
Or (PSAT, 0x00000003, PSAT)
Or (PSAT, 0x00000000, PSAT)
}
Method (_ON)
{
And (PSAT, 0xfffffffc, PSAT)
Or (PSAT, 0x00000000, PSAT)
}
}
}
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