aboutsummaryrefslogtreecommitdiff
path: root/src
diff options
context:
space:
mode:
Diffstat (limited to 'src')
-rw-r--r--src/soc/intel/apollolake/acpi/northbridge.asl10
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