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-rw-r--r--src/northbridge/intel/x4x/x4x.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/northbridge/intel/x4x/x4x.h b/src/northbridge/intel/x4x/x4x.h
index 2e9c08ddea..9837063641 100644
--- a/src/northbridge/intel/x4x/x4x.h
+++ b/src/northbridge/intel/x4x/x4x.h
@@ -85,6 +85,18 @@
#define MCHBAR8(x) (*((volatile u8 *)(DEFAULT_MCHBAR + (x))))
#define MCHBAR16(x) (*((volatile u16 *)(DEFAULT_MCHBAR + (x))))
#define MCHBAR32(x) (*((volatile u32 *)(DEFAULT_MCHBAR + (x))))
+#define MCHBAR8_AND(x, and) (MCHBAR8(x) = MCHBAR8(x) & (and))
+#define MCHBAR8_OR(x, or) (MCHBAR8(x) = MCHBAR8(x) | (or))
+#define MCHBAR8_AND_OR(x, and, or) \
+ (MCHBAR8(x) = (MCHBAR8(x) & (and)) | (or))
+#define MCHBAR16_AND(x, and) (MCHBAR16(x) = MCHBAR16(x) & (and))
+#define MCHBAR16_OR(x, or) (MCHBAR16(x) = MCHBAR16(x) | (or))
+#define MCHBAR16_AND_OR(x, and, or) \
+ (MCHBAR16(x) = (MCHBAR16(x) & (and)) | (or))
+#define MCHBAR32_AND(x, and) (MCHBAR32(x) = MCHBAR32(x) & (and))
+#define MCHBAR32_OR(x, or) (MCHBAR32(x) = MCHBAR32(x) | (or))
+#define MCHBAR32_AND_OR(x, and, or) \
+ (MCHBAR32(x) = (MCHBAR32(x) & (and)) | (or))
#define CHDECMISC 0x111
#define STACKED_MEM (1 << 1)