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nb/intel/i945/memmap.c: Fix TOLUD bit field mask 

Register TOLUD is defined as bit field 7:3 (section 5.1.26, page 103,
i945GM datasheet), fix the mask accordingly.

Change-Id: Ia27661084e11ea93d5f0dc20bafb488ae2995b49
Signed-off-by: Petr Cvek <petrcvekcz@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63752
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
This commit is contained in:
Petr Cvek 2022-04-21 04:31:39 +02:00 committed by Felix Held
parent b94d3681e1
commit b30f8687b2
1 changed files with 1 additions and 1 deletions
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src/northbridge/intel/i945/memmap.c
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@ -40,7 +40,7 @@ static uintptr_t northbridge_get_tseg_base(void)
/* IGD enabled, get top of Memory from BSM register */ /* IGD enabled, get top of Memory from BSM register */
tom = pci_read_config32(IGD_DEV, BSM); tom = pci_read_config32(IGD_DEV, BSM);
else else
tom = (pci_read_config8(HOST_BRIDGE, TOLUD) & 0xf7) << 24; tom = (pci_read_config8(HOST_BRIDGE, TOLUD) & 0xf8) << 24;
/* subtract TSEG size */ /* subtract TSEG size */
tom -= decode_tseg_size(pci_read_config8(HOST_BRIDGE, ESMRAMC)); tom -= decode_tseg_size(pci_read_config8(HOST_BRIDGE, ESMRAMC));