diff options
| author | Sean Rhodes <sean@starlabs.systems> | 2022-07-28 21:05:10 +0100 |
|---|---|---|
| committer | Sean Rhodes <sean@starlabs.systems> | 2022-12-22 21:17:16 +0000 |
| commit | de19bc372b57aaf003dcbbd1dcd55fa1a183ef6e (patch) | |
| tree | 35e4d9c7565426988530394bd9423960b3792155 /src/soc | |
| parent | 759aa17e79c4096e8fe3cee9fc04e899059e9f76 (diff) | |
soc/intel/apollolake/acpi: Add bits of TOLUD register
The values in this patch were found in the following datasheets:
* 334819 (APL)
* 336561 (GLK)
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Change-Id: I9a4a05f9c764eecaac3d473ba612dca6cc81518f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66234
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/apollolake/acpi/northbridge.asl | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/soc/intel/apollolake/acpi/northbridge.asl b/src/soc/intel/apollolake/acpi/northbridge.asl index 0bea341845..aa45f45fa9 100644 --- a/src/soc/intel/apollolake/acpi/northbridge.asl +++ b/src/soc/intel/apollolake/acpi/northbridge.asl @@ -19,8 +19,10 @@ Device (MCHC) Offset(0xB4), BGSM, 32, /* Base of Graphics Stolen Memory */ - Offset(0xBC), - TLUD, 32, /* Top of Low Usable DRAM */ + + Offset (0xbc), /* TOLUD (0:0:0:bc) */ + , 20, + TLUD, 12, /* Top of Lower Usable DRAM */ } } @@ -83,7 +85,7 @@ Method (_CRS, 0, Serialized) CreateDwordField (MCRS, PM01._LEN, PLEN) /* Read C-Unit PCI CFG Reg. 0xBC for TOLUD (shadow from B-Unit) */ - PMIN = \_SB.PCI0.MCHC.TLUD & 0xFFF00000 + PMIN = ^MCHC.TLUD << 20 /* Use PCR base to ensure PMAX below GPIO controllers attached to _SB */ PMAX = CONFIG_PCR_BASE_ADDRESS & 0xF0000000 @@ -99,7 +101,7 @@ Method (_CRS, 0, Serialized) GMIN = \_SB.PCI0.MCHC.BGSM & 0xFFF00000 /* Read TOLUD */ - GMAX = \_SB.PCI0.MCHC.TLUD & 0xFFF00000 + GMAX = ^MCHC.TLUD << 20 GMAX-- GLEN = GMAX - GMIN + 1 |