Hi,
I just noticed, there are two identical intel southbridges in the v2 tree:
The southbridge/intel/i82801er part is exactly the southbridge/intel/ich5r part. Seems like someone did not check what was there.
ICH5R: dell/s1850 intel/jarrell momentum/apache supermicro/x6dhe_g2 supermicro/x6dhr_ig2 supermicro/x6dhr_ig
82801er tyan/s2735
Also, the ich5r version uses nice PCI names like PCI_DEVICE_ID_INTEL_82801ER_ISA whereas the i82802er code uses PCI_DEVICE_ID_INTEL_82801ER_1F0 where the 1F0 says absolutely nothing except maybe (guessing) the position of the device on the PCI bus in factory bios.
Since all mainboards except one are using the ich5r, I suggest deleting the 82801er directory and renaming the ich5r to 82801er to keep consistence in the naming scheme
Stefan