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nb/intel/haswell/finalize.c: Align MC locking with Broadwell 

Broadwell uses a 32-bit or, so also use it on Haswell for consistency.
This has no effect because MRC already locks the memory controller down.

Tested on Asrock B85M Pro4, still boots and register is still locked.

Change-Id: Ida69cd9a95a658c24b4d2558dde88b94c167a3f9
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46681
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Angel Pons 2020-10-23 11:02:48 +02:00
parent 8cc39a5fae
commit 6fe3c06614
1 changed files with 3 additions and 3 deletions
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6
src/northbridge/intel/haswell/finalize.c
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@ -17,6 +17,9 @@ void intel_northbridge_haswell_finalize_smm(void)
pci_or_config32(HOST_BRIDGE, TSEG, 1 << 0);
pci_or_config32(HOST_BRIDGE, TOLUD, 1 << 0);
/* Memory Controller Lockdown */
MCHBAR32(MC_LOCK) |= 0x8f;
MCHBAR32_OR(MMIO_PAVP_MSG, 1 << 0); /* PAVP */
MCHBAR32_OR(PCU_DDR_PTM_CTL, 1 << 5); /* DDR PTM */
MCHBAR32_OR(UMAGFXCTL, 1 << 0); /* UMA GFX */
@ -26,9 +29,6 @@ void intel_northbridge_haswell_finalize_smm(void)
MCHBAR32_OR(CRDTLCK, 1 << 0);
MCHBAR32_OR(MCARBLCK, 1 << 0);
/* Memory Controller Lockdown */
MCHBAR8(MC_LOCK) = 0x8f;
/* Read+write the following */
MCHBAR32(VDMBDFBARKVM) = MCHBAR32(VDMBDFBARKVM);
MCHBAR32(VDMBDFBARPAVP) = MCHBAR32(VDMBDFBARPAVP);