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-rw-r--r--src/soc/intel/common/block/acpi/acpi/globalnvs.asl5
-rw-r--r--src/soc/intel/common/block/acpi/acpi/northbridge.asl25
2 files changed, 14 insertions, 16 deletions
diff --git a/src/soc/intel/common/block/acpi/acpi/globalnvs.asl b/src/soc/intel/common/block/acpi/acpi/globalnvs.asl
index 8e8241bc78..e94c49f7c8 100644
--- a/src/soc/intel/common/block/acpi/acpi/globalnvs.asl
+++ b/src/soc/intel/common/block/acpi/acpi/globalnvs.asl
@@ -1,7 +1,7 @@
/*
* This file is part of the coreboot project.
*
- * Copyright (C) 2019 Intel Corporation.
+ * Copyright (C) 2019-2020 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -47,6 +47,9 @@ Field (GNVS, ByteAcc, NoLock, Preserve)
U2WE, 16, // 0x2b - 0x2c USB2 Wake Enable Bitmap
U3WE, 16, // 0x2d - 0x2e USB3 Wake Enable Bitmap
UIOR, 8, // 0x2f - UART debug controller init on S3 resume
+ E4GM, 8, // 0x30 - Enable above 4GB MMIO Resource
+ A4GB, 64, // 0x31 - 0x38 Base of above 4GB MMIO Resource
+ A4GS, 64, // 0x39 - 0x40 Length of above 4GB MMIO Resource
/* ChromeOS specific */
Offset (0x100),
diff --git a/src/soc/intel/common/block/acpi/acpi/northbridge.asl b/src/soc/intel/common/block/acpi/acpi/northbridge.asl
index 2372e7947b..d271ddac3c 100644
--- a/src/soc/intel/common/block/acpi/acpi/northbridge.asl
+++ b/src/soc/intel/common/block/acpi/acpi/northbridge.asl
@@ -16,9 +16,6 @@
#include <soc/iomap.h>
-#define BASE_32GB 0x800000000
-#define SIZE_16GB 0x400000000
-
Name (_HID, EisaId ("PNP0A08") /* PCI Express Bus */) // _HID: Hardware ID
Name (_CID, EisaId ("PNP0A03") /* PCI Bus */) // _CID: Compatible ID
Name (_SEG, Zero) // _SEG: PCI Segment
@@ -204,20 +201,18 @@ Method (_CRS, 0, Serialized)
Add (Subtract (PMAX, PMIN), 1, PLEN)
/* Patch PM02 range based on Memory Size */
- CreateQwordField (MCRS, PM02._MIN, MMIN)
- CreateQwordField (MCRS, PM02._MAX, MMAX)
- CreateQwordField (MCRS, PM02._LEN, MLEN)
-
- Store (\_SB.PCI0.MCHC.TUUD, Local0)
-
- If (LLessEqual (Local0, BASE_32GB)) {
- Store (BASE_32GB, MMIN)
- Store (SIZE_16GB, MLEN)
+ If (LEqual (A4GS, 0)) {
+ CreateQwordField (MCRS, PM02._LEN, MSEN)
+ Store (0, MSEN)
} Else {
- Store (0, MMIN)
- Store (0, MLEN)
+ CreateQwordField (MCRS, PM02._MIN, MMIN)
+ CreateQwordField (MCRS, PM02._MAX, MMAX)
+ CreateQwordField (MCRS, PM02._LEN, MLEN)
+ /* Set 64bit MMIO resource base and length */
+ Store (A4GS, MLEN)
+ Store (A4GB, MMIN)
+ Subtract (Add (MMIN, MLEN), 1, MMAX)
}
- Subtract (Add (MMIN, MLEN), 1, MMAX)
Return (MCRS)
}