diff options
Diffstat (limited to 'src/soc/intel/apollolake/acpi/northbridge.asl')
| -rw-r--r-- | src/soc/intel/apollolake/acpi/northbridge.asl | 153 |
1 files changed, 77 insertions, 76 deletions
diff --git a/src/soc/intel/apollolake/acpi/northbridge.asl b/src/soc/intel/apollolake/acpi/northbridge.asl index 2f2a064f1b..027e2a623c 100644 --- a/src/soc/intel/apollolake/acpi/northbridge.asl +++ b/src/soc/intel/apollolake/acpi/northbridge.asl @@ -15,112 +15,113 @@ * GNU General Public License for more details. */ - Name(_HID, EISAID("PNP0A08")) /* PCIe */ - Name(_CID, EISAID("PNP0A03")) /* PCI */ - Name(_BBN, 0) +#define BASE_64GB 0x1000000000 + +Name(_HID, EISAID("PNP0A08")) /* PCIe */ +Name(_CID, EISAID("PNP0A03")) /* PCI */ Device (MCHC) { Name (_ADR, 0x00000000) /*Dev0 Func0 */ - OperationRegion (MCHP, PCI_Config, 0x00, 0x100) - Field (MCHP, DWordAcc, NoLock, Preserve) - { - Offset(0x60), - MCNF, 32, /* PCI MMCONF base */ - Offset (0xA8), - TUUD, 64, /* Top of Upper Used Memory */ - Offset(0xB4), - BGSM, 32, /* Base of Graphics Stolen Memory */ - Offset(0xBC), - TLUD, 32, /* Top of Low Useable DRAM */ - } + OperationRegion (MCHP, PCI_Config, 0x00, 0x100) + Field (MCHP, DWordAcc, NoLock, Preserve) + { + Offset(0x60), + MCNF, 32, /* PCI MMCONF base */ + Offset (0xA8), + TUUD, 64, /* Top of Upper Used Memory */ + Offset(0xB4), + BGSM, 32, /* Base of Graphics Stolen Memory */ + Offset(0xBC), + TLUD, 32, /* Top of Low Useable DRAM */ + } } -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, 0x01000, 0xffff, 0x0000, 0xf000,,,) - - /* VGA memory (0xa0000-0xbffff) */ - DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, - Cacheable, ReadWrite, - 0x00000000, 0x000a0000, 0x000bffff, 0x00000000, - 0x00020000,,,) - - /* Data and GFX stolen memory */ - DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, - Cacheable, ReadWrite, - 0x00000000, 0x3be00000, 0x3fffffff, 0x00000000, - 0x04200000,,, STOM) - - /* - * PCI MMIO Region (TOLUD - PCI extended base MMCONF) - * This assumes that MMCONF is placed after PCI config space, - * and that no resources are allocated after the MMCONF region. - * This works, sicne MMCONF is hardcoded to 0xe00000000. - */ - DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, - NonCacheable, ReadWrite, - 0x00000000, 0x00000000, 0x00000000, 0x00000000, - 0x00000000,,, PM01) - - /* PCI Memory Region (TOUUD - (TOUUD + ABOVE_4G_MMIO_SIZE)) */ - QWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, - NonCacheable, ReadWrite, - 0x00000000, 0x10000, 0x1ffff, 0x00000000, - 0x10000,,, PM02) -}) /* Current Resource Settings */ 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, 0x01000, 0xffff, 0x0000, 0xf000,,,) + + /* VGA memory (0xa0000-0xbffff) */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + Cacheable, ReadWrite, + 0x00000000, 0x000a0000, 0x000bffff, 0x00000000, + 0x00020000,,,) + + /* Data and GFX stolen memory */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + Cacheable, ReadWrite, + 0x00000000, 0x3be00000, 0x3fffffff, 0x00000000, + 0x04200000,,, STOM) + + /* + * PCI MMIO Region (TOLUD - PCI extended base MMCONF) + * This assumes that MMCONF is placed after PCI config space, + * and that no resources are allocated after the MMCONF region. + * This works, sicne MMCONF is hardcoded to 0xe00000000. + */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + NonCacheable, ReadWrite, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000,,, PM01) + + /* PCI Memory Region (TOUUD - (TOUUD + ABOVE_4G_MMIO_SIZE)) */ + QWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + NonCacheable, ReadWrite, + 0x00000000, 0x10000, 0x1ffff, 0x00000000, + 0x10000,,, PM02) + }) /* Find PCI resource area in MCRS */ - CreateDwordField (MCRS, ^PM01._MIN, PMIN) - CreateDwordField (MCRS, ^PM01._MAX, PMAX) - CreateDwordField (MCRS, ^PM01._LEN, PLEN) + CreateDwordField (MCRS, PM01._MIN, PMIN) + CreateDwordField (MCRS, PM01._MAX, PMAX) + CreateDwordField (MCRS, PM01._LEN, PLEN) /* Read C-Unit PCI CFG Reg. 0xBC for TOLUD (shadow from B-Unit) */ - And(^MCHC.TLUD, 0xFFF00000, PMIN) + And(\_SB.PCI0.MCHC.TLUD, 0xFFF00000, PMIN) /* Read MMCONF base */ - And(^MCHC.MCNF, 0xF0000000, PMAX) + And(\_SB.PCI0.MCHC.MCNF, 0xF0000000, PMAX) /* Calculate PCI MMIO Length */ Add(Subtract(PMAX, PMIN), 1, PLEN) /* Find GFX resource area in GCRS */ - CreateDwordField(MCRS, ^STOM._MIN, GMIN) - CreateDwordField(MCRS, ^STOM._MAX, GMAX) - CreateDwordField(MCRS, ^STOM._LEN, GLEN) + CreateDwordField(MCRS, STOM._MIN, GMIN) + CreateDwordField(MCRS, STOM._MAX, GMAX) + CreateDwordField(MCRS, STOM._LEN, GLEN) /* Read BGSM */ - And(^MCHC.BGSM, 0xFFF00000, GMIN) + And(\_SB.PCI0.MCHC.BGSM, 0xFFF00000, GMIN) /* Read TOLUD */ - And(^MCHC.TLUD, 0xFFF00000, GMAX) + And(\_SB.PCI0.MCHC.TLUD, 0xFFF00000, GMAX) Decrement(GMAX) Add(Subtract(GMAX, GMIN), 1, GLEN) /* Patch PM02 range based on Memory Size */ - CreateQwordField (MCRS, ^PM02._MIN, MMIN) - CreateQwordField (MCRS, ^PM02._MAX, MMAX) - CreateQwordField (MCRS, ^PM02._LEN, MLEN) + CreateQwordField (MCRS, PM02._MIN, MMIN) + CreateQwordField (MCRS, PM02._MAX, MMAX) + CreateQwordField (MCRS, PM02._LEN, MLEN) - Store (^MCHC.TUUD, Local0) + Store (\_SB.PCI0.MCHC.TUUD, Local0) - If (LLessEqual (Local0, 0x1000000000)) + If (LLessEqual (Local0, BASE_64GB)) { Store (0, MMIN) Store (0, MLEN) |