nb/intel/gm45/acpi.c: Don't read PCI config to check presence
Change-Id: I4cac29c1bf59df56df8cf0035ee1d5379bbde76e
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34837
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/northbridge/intel/gm45/acpi.c b/src/northbridge/intel/gm45/acpi.c
index decf712..69ebdd7 100644
--- a/src/northbridge/intel/gm45/acpi.c
+++ b/src/northbridge/intel/gm45/acpi.c
@@ -69,9 +69,11 @@
static unsigned long acpi_fill_dmar(unsigned long current)
{
- int me_active = (pcidev_on_root(3, 0) != NULL) &&
- (pci_read_config8(pcidev_on_root(3, 0), PCI_CLASS_REVISION) !=
- 0xff);
+ const struct device *dev;
+
+ dev = pcidev_on_root(3, 0);
+ int me_active = dev && dev->enabled;
+
int stepping = pci_read_config8(pcidev_on_root(0, 0),
PCI_CLASS_REVISION);