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| /*++
|
| Copyright (c) 1999 - 2014, Intel Corporation. All rights reserved
|
| SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
| Module Name:
|
| HOST_BUS.ASL
|
| Abstract:
|
| Baytrail PCI configuration space definition.
|
| ---*/
| Device(VLVC)
| {
| Name(_ADR, 0x00000000) // Device 0, Function 0
|
| // Define various MCH Controller PCI Configuration Space
| // registers which will be used to dynamically produce all
| // resources in the Host Bus _CRS.
| OperationRegion(HBUS, PCI_Config, 0x00, 0xFF)
| Field(HBUS, DWordAcc, NoLock, Preserve)
| {
| Offset(0xD0),
| SMCR, 32, // VLV Message Control Register (0xD0)
| Offset(0xD4),
| SMDR, 32, // VLV Message Data Register (0xD4)
| Offset(0xD8),
| MCRX, 32, // VLV Message Control Register Extension (0xD8)
| }
|
| // Define a method to read a 32-bit register on the VLV Message bus.
| // Arg0 = Port
| // Arg1 = Register
| //
| // Returns 32-bit register value
|
| Method(RMBR, 2, Serialized)
| {
|
| // Initiate regsiter read message on VLV Message Bus MCR
|
| Or(ShiftLeft(Arg0, 16), ShiftLeft(Arg1, 8), Local0)
| Or(0x100000F0, Local0, SMCR)
|
| // Read register value from Message Data Register
|
| Return(SMDR)
| }
|
|
| // Define a method to write a 32-bit register on the VLV Message bus MDR.
| // Arg0 = Port
| // Arg1 = Register
| // Arg2 = 32-bit value
|
| Method(WMBR, 3, Serialized)
| {
|
| // Write register value to Message Data Register
|
| Store(Arg2, SMDR)
|
| // Initiate register write message on VLV Message Bus
|
| Or(ShiftLeft(Arg0, 16), ShiftLeft(Arg1, 8), Local0)
| Or(0x110000F0, Local0, SMCR)
| }
| }
|
| //
| // BUS, I/O, and MMIO resources
| //
| Method(_CRS,0,Serialized)
| {
| //Update ISP0 reserved memory
| CreateDwordField(RES0, ^ISP0._MIN,ISMN)
| CreateDwordField(RES0, ^ISP0._MAX,ISMX)
| CreateDwordField(RES0, ^ISP0._LEN,ISLN)
| If (LEqual(ISPD,1))
| {
| Store (ISPA, ISMN)
| Add (ISMN, ISLN, ISMX)
| Subtract(ISMX, 1, ISMX)
| } Else
| {
| Store (0, ISMN)
| Store (0, ISMX)
| Store (0, ISLN)
| }
|
| //PCI MMIO SPACE
| CreateDwordField(RES0, ^PM01._MIN,M1MN)
| CreateDwordField(RES0, ^PM01._MAX,M1MX)
| CreateDwordField(RES0, ^PM01._LEN,M1LN)
|
| //Get dBMBOUND Base
| And(BMBD, 0xFF000000, M1MN)
|
| //Get ECBASE
| Store(PCIT, M1MX)
| Add(Subtract(M1MX, M1MN), 1, M1LN)
| Subtract(M1MX, 1, M1MX)
|
| // Create pointers to Gfx Stolen Memory Sizing values.
| CreateDwordField(RES0, ^STOM._MIN,GSMN)
| CreateDwordField(RES0, ^STOM._MAX,GSMX)
| CreateDwordField(RES0, ^STOM._LEN,GSLN)
|
| If (LNotEqual (\_SB.PCI0.GFX0.GSTM, 0xFFFFFFFF))
| {
| Store(0x00, GSMN) //Read the Stolen memory base from B0:D2:F0:R5C
| } else
| {
| Store(\_SB.PCI0.GFX0.GSTM, GSMN) //Read the Stolen memory base from B0:D2:F0:R5C
| }
| If (LNotEqual (\_SB.PCI0.GFX0.GUMA, 0xFFFFFFFF))
| {
| Store(0x00, GSLN) //Read the Stolen memory base from B0:D2:F0:R5C
| } else
| {
| ShiftLeft(\_SB.PCI0.GFX0.GUMA, 25, GSLN) //Read Stolen memory base form B0:D2:F0:R50
| }
| Add(GSMN, GSLN, GSMX) //Store the Stolen Memory Size
| Subtract(GSMX, 1, GSMX)
|
| Return(RES0)
| }
|
| Name( RES0,ResourceTemplate()
| {
| WORDBusNumber ( // Bus number resource (0); the bridge produces bus numbers for its subsequent buses
| ResourceProducer, // bit 0 of general flags is 1
| MinFixed, // Range is fixed
| MaxFixed, // Range is fixed
| PosDecode, // PosDecode
| 0x0000, // Granularity
| 0x0000, // Min
| 0x00FF, // Max
| 0x0000, // Translation
| 0x0100 // Range Length = Max-Min+1
| )
|
| IO (Decode16, 0x70, 0x77, 0x01, 0x08) //Consumed resource (0xCF8-0xCFF)
| IO (Decode16, 0xCF8, 0xCF8, 0x01, 0x08) //Consumed resource (0xCF8-0xCFF)
|
| WORDIO ( // Consumed-and-produced resource (all I/O below CF8)
| ResourceProducer, // bit 0 of general flags is 0
| MinFixed, // Range is fixed
| MaxFixed, // Range is fixed
| PosDecode,
| EntireRange,
| 0x0000, // Granularity
| 0x0000, // Min
| 0x006F, // Max
| 0x0000, // Translation
| 0x0070 // Range Length
| )
|
| WORDIO ( // Consumed-and-produced resource
| ResourceProducer, // bit 0 of general flags is 0
| MinFixed, // Range is fixed
| MaxFixed, // Range is fixed
| PosDecode,
| EntireRange,
| 0x0000, // Granularity
| 0x0078, // Min
| 0x0CF7, // Max
| 0x0000, // Translation
| 0x0C80 // Range Length
| )
|
| WORDIO ( // Consumed-and-produced resource (all I/O above CFF)
| ResourceProducer, // bit 0 of general flags is 0
| MinFixed, // Range is fixed
| MaxFixed, // Range is fixed
| PosDecode,
| EntireRange,
| 0x0000, // Granularity
| 0x0D00, // Min
| 0xFFFF, // Max
| 0x0000, // Translation
| 0xF300 // Range Length
| )
|
| DWORDMEMORY ( // Descriptor for legacy VGA video RAM
| ResourceProducer, // bit 0 of general flags is 0
| PosDecode,
| MinFixed, // Range is fixed
| MaxFixed, // Range is fixed
| Cacheable,
| ReadWrite,
| 0x00000000, // Granularity
| 0x000A0000, // Min
| 0x000BFFFF, // Max
| 0x00000000, // Translation
| 0x00020000 // Range Length
| )
|
| DWORDMEMORY ( // Descriptor for legacy OptionRom
| ResourceProducer, // bit 0 of general flags is 0
| PosDecode,
| MinFixed, // Range is fixed
| MaxFixed, // Range is fixed
| Cacheable,
| ReadWrite,
| 0x00000000, // Granularity
| 0x000C0000, // Min
| 0x000DFFFF, // Max
| 0x00000000, // Translation
| 0x00020000 // Range Length
| )
|
| DWORDMEMORY ( // Descriptor for BIOS Area
| ResourceProducer, // bit 0 of general flags is 0
| PosDecode,
| MinFixed, // Range is fixed
| MaxFixed, // Range is fixed
| Cacheable,
| ReadWrite,
| 0x00000000, // Granularity
| 0x000E0000, // Min
| 0x000FFFFF, // Max
| 0x00000000, // Translation
| 0x00020000 // Range Length
| )
|
| DWORDMEMORY ( // Descriptor for ISP0 reserved Mem
| ResourceProducer, // bit 0 of general flags is 0
| PosDecode,
| MinFixed, // Range is fixed
| MaxFixed, // Range is fixed
| Cacheable,
| ReadWrite,
| 0x00000000, // Granularity
| 0x7A000000, // Min
| 0x7A3FFFFF, // Max
| 0x00000000, // Translation
| 0x00400000 // Range Length
| ,,,
| ISP0
| )
|
| DWORDMEMORY ( // Descriptor for VGA Stolen Mem
| ResourceProducer, // bit 0 of general flags is 0
| PosDecode,
| MinFixed, // Range is fixed
| MaxFixed, // Range is fixed
| Cacheable,
| ReadWrite,
| 0x00000000, // Granularity
| 0x7C000000, // Min
| 0x7FFFFFFF, // Max
| 0x00000000, // Translation
| 0x04000000 // Range Length
| ,,,
| STOM
| )
|
| DWORDMEMORY ( // Descriptor for PCI MMIO
| ResourceProducer, // bit 0 of general flags is 0
| PosDecode,
| MinFixed, // Range is fixed
| MaxFixed, // Range is fixed
| Cacheable,
| ReadWrite,
| 0x00000000, // Granularity
| 0x80000000, // Min
| 0xDFFFFFFF, // Max
| 0x00000000, // Translation
| 0x60000000 // Range Length
| ,,,
| PM01
| )
| })
|
| //Name(GUID,UUID("33DB4D5B-1FF7-401C-9657-7441C03DD766"))
| Name(GUID,Buffer()
| {
| 0x5b, 0x4d, 0xdb, 0x33,
| 0xf7, 0x1f,
| 0x1c, 0x40,
| 0x96, 0x57,
| 0x74, 0x41, 0xc0, 0x3d, 0xd7, 0x66
| })
|
|
| Name(SUPP,0) // PCI _OSC Support Field value
| Name(CTRL,0) // PCI _OSC Control Field value
|
| Method(_OSC,4,Serialized)
| {
| // Check for proper UUID
| // Save the capabilities buffer
| Store(Arg3,Local0)
|
| // Create DWord-adressable fields from the Capabilties Buffer
| CreateDWordField(Local0,0,CDW1)
| CreateDWordField(Local0,4,CDW2)
| CreateDWordField(Local0,8,CDW3)
|
| // Check for proper UUID
| If(LAnd(LEqual(Arg0,GUID),NEXP))
| {
| // Save Capabilities DWord2 & 3
| Store(CDW2,SUPP)
| Store(CDW3,CTRL)
|
| If(Not(And(CDW1,1))) // Query flag clear?
| {
| // Disable GPEs for features granted native control.
| If(And(CTRL,0x02))
| {
| NHPG()
| }
| If(And(CTRL,0x04)) // PME control granted?
| {
| NPME()
| }
| }
|
| If(LNotEqual(Arg1,One))
| {
| // Unknown revision
| Or(CDW1,0x08,CDW1)
| }
|
| If(LNotEqual(CDW3,CTRL))
| {
| // Capabilities bits were masked
| Or(CDW1,0x10,CDW1)
| }
| // Update DWORD3 in the buffer
| And(CTRL,0xfe,CTRL)
| Store(CTRL,CDW3)
| Store(CTRL,OSCC)
| Return(Local0)
| } Else
| {
| Or(CDW1,4,CDW1) // Unrecognized UUID
| Return(Local0)
| }
| } // End _OSC
|
|
