Lijian Zhao (lijian.zhao@intel.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/14477
-gerrit
commit c4a1dc60668efe58c135b1456358638f25e50b78 Author: Zhao, Lijian lijian.zhao@intel.com Date: Fri Apr 22 11:19:44 2016 -0700
soc/intel/apollolake: Fix northbridge _crs scope
Move _CRS scope from MCHC device only to whole pci root bus. Otherwise ACPI will not able to assign resource to devices other than MCHC. Also modify the PCI MMIO memory attribution from noncacheable to cacheable.
Change-Id: Iaa294c63e03a4fc6644f1be5d69ab3de077e6cc3 Signed-off-by: Zhao, Lijian lijian.zhao@intel.com --- src/soc/intel/apollolake/acpi/northbridge.asl | 167 +++++++++++++------------- 1 file changed, 84 insertions(+), 83 deletions(-)
diff --git a/src/soc/intel/apollolake/acpi/northbridge.asl b/src/soc/intel/apollolake/acpi/northbridge.asl index 8415ffe..1c8067f 100644 --- a/src/soc/intel/apollolake/acpi/northbridge.asl +++ b/src/soc/intel/apollolake/acpi/northbridge.asl @@ -36,97 +36,98 @@ Device (MCHC) 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, + Cacheable, ReadWrite, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x00000000,,, PM01) + + /* PCI Memory Region (TOUUD - (TOUUD + ABOVE_4G_MMIO_SIZE)) */ + QWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, + Cacheable, ReadWrite, + 0x00000000, 0x10000, 0x1ffff, 0x00000000, + 0x10000,,, PM02) +}) + +/* Current Resource Settings */ +Method (_CRS, 0, Serialized) +{
- /* Find PCI resource area in MCRS */ - CreateDwordField (MCRS, ^PM01._MIN, PMIN) - CreateDwordField (MCRS, ^PM01._MAX, PMAX) - CreateDwordField (MCRS, ^PM01._LEN, PLEN) + /* Find PCI resource area in MCRS */ + 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(^TLUD, 0xFFF00000, PMIN) - /* Read MMCONF base */ - And(^MCNF, 0xF0000000, PMAX) + /* Read C-Unit PCI CFG Reg. 0xBC for TOLUD (shadow from B-Unit) */ + And(^MCHC.TLUD, 0xFFF00000, PMIN) + /* Read MMCONF base */ + And(^MCHC.MCNF, 0xF0000000, PMAX)
- /* Calculate PCI MMIO Length */ - Add(Subtract(PMAX, PMIN), 1, PLEN) + /* 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) + /* Find GFX resource area in GCRS */ + CreateDwordField(MCRS, ^STOM._MIN, GMIN) + CreateDwordField(MCRS, ^STOM._MAX, GMAX) + CreateDwordField(MCRS, ^STOM._LEN, GLEN)
- /* Read BGSM */ - And(^BGSM, 0xFFF00000, GMIN) + /* Read BGSM */ + And(^MCHC.BGSM, 0xFFF00000, GMIN)
- /* Read TOLUD */ - And(^TLUD, 0xFFF00000, GMAX) - Decrement(GMAX) - Add(Subtract(GMAX, GMIN), 1, GLEN) + /* Read TOLUD */ + And(^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) + /* Patch PM02 range based on Memory Size */ + CreateQwordField (MCRS, ^PM02._MIN, MMIN) + CreateQwordField (MCRS, ^PM02._MAX, MMAX) + CreateQwordField (MCRS, ^PM02._LEN, MLEN)
- Store (^TUUD, Local0) + Store (^MCHC.TUUD, Local0)
- If (LLessEqual (Local0, 0x1000000000)) - { - Store (0, MMIN) - Store (0, MLEN) - } - Subtract (Add (MMIN, MLEN), 1, MMAX) - - Return (MCRS) + If (LLessEqual (Local0, 0x1000000000)) + { + Store (0, MMIN) + Store (0, MLEN) } + Subtract (Add (MMIN, MLEN), 1, MMAX) + + Return (MCRS) } +