diff options
Diffstat (limited to 'src/vendorcode/amd/pi')
4 files changed, 28 insertions, 0 deletions
diff --git a/src/vendorcode/amd/pi/00630F01/binaryPI/gcccar.inc b/src/vendorcode/amd/pi/00630F01/binaryPI/gcccar.inc index f444852e549c..51c6b52248f3 100644 --- a/src/vendorcode/amd/pi/00630F01/binaryPI/gcccar.inc +++ b/src/vendorcode/amd/pi/00630F01/binaryPI/gcccar.inc @@ -1438,6 +1438,13 @@ SetupStack: 0: _WRMSR # + # All cores must see BSP stack region that is also used to + # communicate global variables before DRAM is up. + mov $AMD_MTRR_FIX64k_00000, %ecx # MSR:0000_0250 + _RDMSR + or $0x1e000000, %eax + _WRMSR + # Enable MTRR defaults as UC type mov $AMD_MTRR_DEFTYPE, %ecx # MSR:0000_02FF _RDMSR # Read-modify-write the MSR diff --git a/src/vendorcode/amd/pi/00660F01/binaryPI/gcccar.inc b/src/vendorcode/amd/pi/00660F01/binaryPI/gcccar.inc index 0fbcf77eea33..b9cc39fac576 100644 --- a/src/vendorcode/amd/pi/00660F01/binaryPI/gcccar.inc +++ b/src/vendorcode/amd/pi/00660F01/binaryPI/gcccar.inc @@ -1179,6 +1179,13 @@ w64k_here: 0: _WRMSR # + # All cores must see BSP stack region that is also used to + # communicate global variables before DRAM is up. + mov $AMD_MTRR_FIX64k_00000, %ecx # MSR:0000_0250 + _RDMSR + or $0x1e000000, %eax + _WRMSR + # Enable MTRR defaults as UC type mov $AMD_MTRR_DEFTYPE, %ecx # MSR:0000_02FF _RDMSR # Read-modify-write the MSR diff --git a/src/vendorcode/amd/pi/00670F00/binaryPI/gcccar.inc b/src/vendorcode/amd/pi/00670F00/binaryPI/gcccar.inc index 2399bec91b77..46946327ce39 100644 --- a/src/vendorcode/amd/pi/00670F00/binaryPI/gcccar.inc +++ b/src/vendorcode/amd/pi/00670F00/binaryPI/gcccar.inc @@ -1158,6 +1158,13 @@ w64k_here: 0: _WRMSR # + # All cores must see BSP stack region that is also used to + # communicate global variables before DRAM is up. + mov $AMD_MTRR_FIX64k_00000, %ecx # MSR:0000_0250 + _RDMSR + or $0x1e000000, %eax + _WRMSR + # Enable MTRR defaults as UC type mov $AMD_MTRR_DEFTYPE, %ecx # MSR:0000_02FF _RDMSR # Read-modify-write the MSR diff --git a/src/vendorcode/amd/pi/00730F01/binaryPI/gcccar.inc b/src/vendorcode/amd/pi/00730F01/binaryPI/gcccar.inc index 7e12db1d0610..6c4ad596e19a 100644 --- a/src/vendorcode/amd/pi/00730F01/binaryPI/gcccar.inc +++ b/src/vendorcode/amd/pi/00730F01/binaryPI/gcccar.inc @@ -1153,6 +1153,13 @@ SetupStack: 0: _WRMSR # + # All cores must see BSP stack region that is also used to + # communicate global variables before DRAM is up. + mov $AMD_MTRR_FIX64k_00000, %ecx # MSR:0000_0250 + _RDMSR + or $0x1e000000, %eax + _WRMSR # + # Enable MTRR defaults as UC type mov $AMD_MTRR_DEFTYPE, %ecx # MSR:0000_02FF _RDMSR # Read-modify-write the MSR |