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Lenovo X60: Native VGA init: Get rid of the memory corruptions. 

Without that fix the GTT points at 0x00000000.

The patch was made by Peter Stuge, I just split it
  and added a commit message.

Change-Id: Ia378b600ba2faf00d42635c6503b94ff0cb1bc8c
Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@no-log.org>
Reviewed-on: http://review.coreboot.org/4002
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
This commit is contained in:
Peter Stuge 2013-10-27 16:07:28 +01:00 committed by Alexandru Gagniuc
parent 2186b6538e
commit c882d93054
1 changed files with 2 additions and 1 deletions
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3
src/mainboard/lenovo/x60/i915.c
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@ -139,7 +139,8 @@ int gtt_setup(unsigned int mmiobase)
PGETBL_save = read32(mmiobase + PGETBL_CTL) & ~PGETBL_ENABLED; PGETBL_save = read32(mmiobase + PGETBL_CTL) & ~PGETBL_ENABLED;
PGETBL_save |= PGETBL_ENABLED; PGETBL_save |= PGETBL_ENABLED;
printk(BIOS_DEBUG, "PGETBL_save=0x%lx\n", PGETBL_save); PGETBL_save |= pci_read_config32(dev_find_slot(0, PCI_DEVFN(2,0)), 0x5c) & 0xfffff000;
PGETBL_save |= 2; /* set GTT to 256kb */
write32(mmiobase + GFX_FLSH_CNTL, 0); write32(mmiobase + GFX_FLSH_CNTL, 0);