7e753fcf97
across the "coma bug" workaround to avoid clearing the MAPEN bit if it was originally set by firmware. This appears necessary for proper functioning of SMM on Geode CPUs, and thus for proper emulation (ugh) of access to certain PCI configuration registers or VGA register spaces. With this change, VGA and soundblaster emulation work on Geode NX1 systems. This was also the underlying problem that led to the introduction of the PCI_QUIRK_SKIP_FUNCn quirks in pci_quirks.c, which are no longer necessary (and counterproductive if you want to use VGA or a Geode-specific audio driver). See the thread "pci probe" on port-i386 in August 2003 (The Soekris 4801, apparantly the most popular Geode-based NetBSD box, has neither VGA nor audio, which may explain why this wasn't noticed at the time).