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northbridge/nehalem: add MCHBAR AND/OR/AND_OR macros 

The newly added macros are used for cleaning up the RAM initializatiion code.

Change-Id: I3d3782ee1fa524cf69b63ccc7eb73e9a2ace84ec
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/27705
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
This commit is contained in:
Felix Held 2018-07-29 01:03:39 +02:00
parent 00d2b913c3
commit 86b299ab35
1 changed files with 8 additions and 1 deletions
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9
src/northbridge/intel/nehalem/nehalem.h
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@ -175,7 +175,14 @@ typedef struct {
#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 MCHBAR32_OR(x, or) (MCHBAR32(x) = (MCHBAR32(x) | (or)))
#define MCHBAR8_AND(x, and) (MCHBAR8(x) = MCHBAR8(x) & (and))
#define MCHBAR8_OR(x, or) (MCHBAR8(x) = MCHBAR8(x) | (or))
#define MCHBAR16_AND(x, and) (MCHBAR16(x) = MCHBAR16(x) & (and))
#define MCHBAR16_OR(x, or) (MCHBAR16(x) = MCHBAR16(x) | (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 BIOS_RESET_CPL 0x5da8 /* 8bit */