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-rw-r--r--src/northbridge/intel/sandybridge/early_init.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/northbridge/intel/sandybridge/early_init.c b/src/northbridge/intel/sandybridge/early_init.c
index e77cf22596..7b60ec7153 100644
--- a/src/northbridge/intel/sandybridge/early_init.c
+++ b/src/northbridge/intel/sandybridge/early_init.c
@@ -155,6 +155,7 @@ static void sandybridge_setup_graphics(void)
void sandybridge_early_initialization(int chipset_type)
{
u32 capid0_a;
+ u32 deven;
u8 reg8;
/* Device ID Override Enable should be done very early */
@@ -172,8 +173,9 @@ void sandybridge_early_initialization(int chipset_type)
/* Setup all BARs required for early PCIe and raminit */
sandybridge_setup_bars();
- /* Device Enable */
- pci_write_config32(PCI_DEV(0, 0, 0), DEVEN, DEVEN_HOST | DEVEN_IGD);
+ /* Device Enable, don't touch PEG bits */
+ deven = pci_read_config32(PCI_DEV(0, 0, 0), DEVEN) | DEVEN_IGD;
+ pci_write_config32(PCI_DEV(0, 0, 0), DEVEN, deven);
sandybridge_setup_graphics();
}