Lijian Zhao (lijian.zhao@intel.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/13375
-gerrit
commit 73d500e55414e6ec4a38c7b4ec5962a7296b8f2b Author: Lance Zhao lijian.zhao@intel.com Date: Mon Nov 16 18:13:23 2015 -0800
soc/apollolake/acpi: Fill ACPI MCFG table
ACPI MCFG table is required for OS to support Enhanced Configuration Space Access.Apollolake will only support 1 PCI Segment Group, so all the pci bus number from 0 to 0xff will belong to that group.
Change-Id: I3a680eb9c83290cd531159d7e796382a132cd283 Signed-off-by: Lance Zhao lijian.zhao@intel.com --- src/mainboard/intel/apollolake_rvp/acpi_tables.c | 2 +- src/soc/intel/apollolake/acpi.c | 4 ++++ 2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/src/mainboard/intel/apollolake_rvp/acpi_tables.c b/src/mainboard/intel/apollolake_rvp/acpi_tables.c index 3040e05..977a28f 100644 --- a/src/mainboard/intel/apollolake_rvp/acpi_tables.c +++ b/src/mainboard/intel/apollolake_rvp/acpi_tables.c @@ -24,7 +24,7 @@ void acpi_create_fadt(acpi_fadt_t *fadt, acpi_facs_t *facs, void *dsdt) memcpy(header->oem_id, OEM_ID, 6); memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8); memcpy(header->asl_compiler_id, ASLC, 4); - header->asl_compiler_revision = 1; + header->asl_compiler_revision = 20150717;
fadt->firmware_ctrl = (uintptr_t)facs; fadt->dsdt = (uintptr_t)dsdt; diff --git a/src/soc/intel/apollolake/acpi.c b/src/soc/intel/apollolake/acpi.c index 52c6bca..d4f6094 100644 --- a/src/soc/intel/apollolake/acpi.c +++ b/src/soc/intel/apollolake/acpi.c @@ -20,6 +20,10 @@
unsigned long acpi_fill_mcfg(unsigned long current) { + /* PCI Segment Group 0, Start Bus Number 0, End Bus Number is 255 */ + current += acpi_create_mcfg_mmconfig((void *) current, + CONFIG_MMCONF_BASE_ADDRESS, 0, 0, + 255); return current; }