diff options
Diffstat (limited to 'src/soc/intel/tigerlake/acpi/northbridge.asl')
-rw-r--r-- | src/soc/intel/tigerlake/acpi/northbridge.asl | 342 |
1 files changed, 342 insertions, 0 deletions
diff --git a/src/soc/intel/tigerlake/acpi/northbridge.asl b/src/soc/intel/tigerlake/acpi/northbridge.asl new file mode 100644 index 0000000000..d6c2d346c6 --- /dev/null +++ b/src/soc/intel/tigerlake/acpi/northbridge.asl @@ -0,0 +1,342 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 Intel Corp. + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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. + */ + +#include <soc/iomap.h> + +#define BASE_32GB 0x800000000 +#define SIZE_16GB 0x400000000 + +Name (_HID, EisaId ("PNP0A08") /* PCI Express Bus */) // _HID: Hardware ID +Name (_CID, EisaId ("PNP0A03") /* PCI Bus */) // _CID: Compatible ID +Name (_SEG, Zero) // _SEG: PCI Segment +Name (_UID, Zero) // _UID: Unique ID + +Device (MCHC) +{ + Name (_ADR, 0x00000000) + + OperationRegion (MCHP, PCI_Config, 0x00, 0x100) + Field (MCHP, DWordAcc, NoLock, Preserve) + { + Offset(0x40), /* EPBAR (0:0:0:40) */ + EPEN, 1, /* Enable */ + , 11, + EPBR, 20, /* EPBAR [31:12] */ + + Offset(0x48), /* MCHBAR (0:0:0:48) */ + MHEN, 1, /* Enable */ + , 14, + MHBR, 17, /* MCHBAR [31:15] */ + + Offset(0x60), /* PCIEXBAR (0:0:0:60) */ + PXEN, 1, /* Enable */ + PXSZ, 2, /* PCI Express Size */ + , 23, + PXBR, 6, /* PCI Express BAR [31:26] */ + + Offset(0x68), /* DMIBAR (0:0:0:68) */ + DIEN, 1, /* Enable */ + , 11, + DIBR, 20, /* DMIBAR [31:12] */ + + Offset (0xa0), /* Top of Used Memory */ + TOM, 64, + + Offset (0xa8), /* Top of Upper Used Memory */ + TUUD, 64, + + Offset (0xbc), /* Top of Low Used Memory */ + TLUD, 32, + } +} + +Method (_CRS, 0, Serialized) +{ + Name (MCRS, ResourceTemplate () + { + /* Bus Numbers */ + WordBusNumber (ResourceProducer, MinFixed, MaxFixed, PosDecode, + 0x0000, 0x0000, 0x00ff, 0x0000, 0x0100) + + /* IO Region 0 */ + DWordIO (ResourceProducer, MinFixed, MaxFixed, PosDecode, + EntireRange, + 0x0000, 0x0000, 0x0cf7, 0x0000, 0x0cf8) + + /* PCI Config Space */ + Io (Decode16, 0x0cf8, 0x0cf8, 0x0001, 0x0008) + + /* IO Region 1 */ + DWordIO (ResourceProducer, MinFixed, MaxFixed, PosDecode, + EntireRange, + 0x0000, 0x0d00, 0xffff, 0x0000, 0xf300) + + /* VGA memory (0xa0000-0xbffff) */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + Cacheable, ReadWrite, + 0x00000000, 0x000a0000, 0x000bffff, 0x00000000, + 0x00020000) + + /* OPROM reserved (0xc0000-0xc3fff) */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + Cacheable, ReadWrite, + 0x00000000, 0x000c0000, 0x000c3fff, 0x00000000, + 0x00004000) + + /* OPROM reserved (0xc4000-0xc7fff) */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + Cacheable, ReadWrite, + 0x00000000, 0x000c4000, 0x000c7fff, 0x00000000, + 0x00004000) + + /* OPROM reserved (0xc8000-0xcbfff) */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + Cacheable, ReadWrite, + 0x00000000, 0x000c8000, 0x000cbfff, 0x00000000, + 0x00004000) + + /* OPROM reserved (0xcc000-0xcffff) */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + Cacheable, ReadWrite, + 0x00000000, 0x000cc000, 0x000cffff, 0x00000000, + 0x00004000) + + /* OPROM reserved (0xd0000-0xd3fff) */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + Cacheable, ReadWrite, + 0x00000000, 0x000d0000, 0x000d3fff, 0x00000000, + 0x00004000) + + /* OPROM reserved (0xd4000-0xd7fff) */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + Cacheable, ReadWrite, + 0x00000000, 0x000d4000, 0x000d7fff, 0x00000000, + 0x00004000) + + /* OPROM reserved (0xd8000-0xdbfff) */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + Cacheable, ReadWrite, + 0x00000000, 0x000d8000, 0x000dbfff, 0x00000000, + 0x00004000) + + /* OPROM reserved (0xdc000-0xdffff) */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + Cacheable, ReadWrite, + 0x00000000, 0x000dc000, 0x000dffff, 0x00000000, + 0x00004000) + + /* BIOS Extension (0xe0000-0xe3fff) */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + Cacheable, ReadWrite, + 0x00000000, 0x000e0000, 0x000e3fff, 0x00000000, + 0x00004000) + + /* BIOS Extension (0xe4000-0xe7fff) */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + Cacheable, ReadWrite, + 0x00000000, 0x000e4000, 0x000e7fff, 0x00000000, + 0x00004000) + + /* BIOS Extension (0xe8000-0xebfff) */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + Cacheable, ReadWrite, + 0x00000000, 0x000e8000, 0x000ebfff, 0x00000000, + 0x00004000) + + /* BIOS Extension (0xec000-0xeffff) */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + Cacheable, ReadWrite, + 0x00000000, 0x000ec000, 0x000effff, 0x00000000, + 0x00004000) + + /* System BIOS (0xf0000-0xfffff) */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + Cacheable, ReadWrite, + 0x00000000, 0x000f0000, 0x000fffff, 0x00000000, + 0x00010000) + + /* PCI Memory Region (TLUD - 0xdfffffff) */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + NonCacheable, ReadWrite, + 0x00000000, 0x00000000, 0xdfffffff, 0x00000000, + 0xE0000000,,, PM01) + + /* PCI Memory Region (TUUD - (TUUD + ABOVE_4G_MMIO_SIZE)) */ + QWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + NonCacheable, ReadWrite, + 0x00000000, 0x10000, 0x1ffff, 0x00000000, + 0x10000,,, PM02) + + /* PCH reserved resource (0xfc800000-0xfe7fffff) */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + Cacheable, ReadWrite, + 0x00000000, PCH_PRESERVED_BASE_ADDRESS, 0xfe7fffff, + 0x00000000, PCH_PRESERVED_BASE_SIZE) + + /* TPM Area (0xfed40000-0xfed47fff) */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + Cacheable, ReadWrite, + 0x00000000, 0xfed40000, 0xfed47fff, 0x00000000, + 0x00008000) + }) + + /* Find PCI resource area in MCRS */ + CreateDwordField (MCRS, PM01._MIN, PMIN) + CreateDwordField (MCRS, PM01._MAX, PMAX) + CreateDwordField (MCRS, PM01._LEN, PLEN) + + /* + * Fix up PCI memory region + * Start with Top of Lower Usable DRAM + */ + Store (\_SB.PCI0.MCHC.TLUD, PMIN) + Add (Subtract (PMAX, PMIN), 1, PLEN) + + /* Patch PM02 range based on Memory Size */ + CreateQwordField (MCRS, PM02._MIN, MMIN) + CreateQwordField (MCRS, PM02._MAX, MMAX) + CreateQwordField (MCRS, PM02._LEN, MLEN) + + Store (\_SB.PCI0.MCHC.TUUD, Local0) + + If (LLessEqual (Local0, BASE_32GB)) { + Store (BASE_32GB, MMIN) + Store (SIZE_16GB, MLEN) + } Else { + Store (0, MMIN) + Store (0, MLEN) + } + Subtract (Add (MMIN, MLEN), 1, MMAX) + + Return (MCRS) +} + +/* + * TODO: Clean up below functions and follow ASL2.0 code syntax + */ +Name (EP_B, 0) /* to store EP BAR */ +Name (MH_B, 0) /* to store MCH BAR */ +Name (PC_B, 0) /* to store PCIe BAR */ +Name (PC_L, 0) /* to store PCIe BAR Length */ +Name (DM_B, 0) /* to store DMI BAR */ + +/* Get MCH BAR */ +Method (GMHB, 0, Serialized) +{ + If (LEqual (MH_B, 0)) { + ShiftLeft (\_SB.PCI0.MCHC.MHBR, 15, MH_B) + } + Return (MH_B) +} + +/* Get EP BAR */ +Method (GEPB, 0, Serialized) +{ + If (LEqual (EP_B, 0)) { + ShiftLeft (\_SB.PCI0.MCHC.EPBR, 12, EP_B) + } + Return (EP_B) +} + +/* Get PCIe BAR */ +Method (GPCB, 0, Serialized) +{ + If (LEqual (PC_B, 0)) { + ShiftLeft (\_SB.PCI0.MCHC.PXBR, 26, PC_B) + } + Return (PC_B) +} + +/* Get PCIe Length */ +Method (GPCL, 0, Serialized) +{ + If (LEqual (PC_L, 0)) { + ShiftRight (0x10000000, \_SB.PCI0.MCHC.PXSZ, PC_L) + } + Return (PC_L) +} + +/* Get DMI BAR */ +Method (GDMB, 0, Serialized) +{ + If (LEqual (DM_B, 0)) { + ShiftLeft (\_SB.PCI0.MCHC.DIBR, 12, DM_B) + } + Return (DM_B) +} + +/* PCI Device Resource Consumption */ +Device (PDRC) +{ + Name (_HID, EISAID ("PNP0C02")) + Name (_UID, 1) + + Name (BUF0, ResourceTemplate () + { + /* MCH BAR _BAS will be updated in _CRS below according to + * B0:D0:F0:Reg.48h + */ + Memory32Fixed (ReadWrite, 0, 0x08000, MCHB) + + /* DMI BAR _BAS will be updated in _CRS below according to + * B0:D0:F0:Reg.68h + */ + Memory32Fixed (ReadWrite, 0, 0x01000, DMIB) + + /* EP BAR _BAS will be updated in _CRS below according to + * B0:D0:F0:Reg.40h + */ + Memory32Fixed (ReadWrite, 0, 0x01000, EGPB) + + /* PCI Express BAR _BAS and _LEN will be updated in + * _CRS below according to B0:D0:F0:Reg.60h + */ + Memory32Fixed (ReadWrite, 0, 0, PCIX) + + /* VTD engine memory range. + */ + Memory32Fixed (ReadOnly, VTD_BASE_ADDRESS, VTD_BASE_SIZE) + + /* Memory mapped SPI Flash range */ + Memory32Fixed (ReadOnly, 0xFFF00000, 0x1000000) + + /* Local APIC range(0xFEE0_0000 to 0xFEEF_FFFF) */ + Memory32Fixed (ReadOnly, 0xFEE00000, 0x100000) + + /* HPET address decode range */ + Memory32Fixed (ReadWrite, HPET_BASE_ADDRESS, 0x400) + }) + + Method (_CRS, 0, Serialized) + { + CreateDwordField (BUF0, ^MCHB._BAS, MBR0) + Store (\_SB.PCI0.GMHB (), MBR0) + + CreateDwordField (BUF0, ^DMIB._BAS, DBR0) + Store (\_SB.PCI0.GDMB (), DBR0) + + CreateDwordField (BUF0, ^EGPB._BAS, EBR0) + Store (\_SB.PCI0.GEPB (), EBR0) + + CreateDwordField (BUF0, ^PCIX._BAS, XBR0) + Store (\_SB.PCI0.GPCB (), XBR0) + + CreateDwordField (BUF0, ^PCIX._LEN, XSZ0) + Store (\_SB.PCI0.GPCL (), XSZ0) + + Return (BUF0) + } +} |