mb/asus/p5qc: Add mainboard

SeaBIOS does not seem to like the Marvel IDE controller, so disabled SeaBIOS
support for ATA. It works fine in Linux afterwards.

Working:
- SATA on southbridge port
- SATA on marvel IDE controller ports (only in Linux)
- USB
- COM1
- PS2 Keyboard
- DDR2 DIMMs
- PCIe x16 PEG port
- PCI port
- NIC (needs a driver to set macaddress)
- S3 resume

Not working:
- SeaBIOS with ATA support (long timeout marvel controller so disabled)
- DDR3 fails because the proper clock signal does not get enabled. Even when
fixing this it fails later or during memtest, so it should be considered
unsupported for now

Untested:
- PCIe x1 ports (expected to work)
- sound (expected to work)

TODO:
add documentation

Change-Id: I4a81940707566776bd048904ca1387fea741fece
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/28264
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/mainboard/asus/p5qc/cmos.default b/src/mainboard/asus/p5qc/cmos.default
new file mode 100644
index 0000000000..ccdb7c8c7e
--- /dev/null
+++ b/src/mainboard/asus/p5qc/cmos.default
@@ -0,0 +1,5 @@
+boot_option=Fallback
+debug_level=Spew
+power_on_after_fail=Disable
+nmi=Enable
+sata_mode=AHCI