I try to porting coreboot to msi's Motherboard(H110 chipset).  

I read GPIO config from PCR config space under linux.

But the value I got was very strange.

eg:

//DW0 and DW1 cannot be 0xffffffff according to the data sheet

PIN:GPP_C6  DW1,DW0:ffffffff,ffffffff FUNC:(null) PULL:NATIVE RESET:RSMRST TX_DISABLE:1 RX_DISABLE:1 RXINV:INVERT TRIG:EDGE_BOTH   ROUTE:NMI SMI SCI IOACPI

PIN:GPP_C7  DW1,DW0:ffffffff,ffffffff FUNC:(null) PULL:NATIVE RESET:RSMRST TX_DISABLE:1 RX_DISABLE:1 RXINV:INVERT TRIG:EDGE_BOTH   ROUTE:NMI SMI SCI IOACPI

//TX_DISABLE and RX_DISABLE should be 0 ,if a GPIO is configured as NFx.

PIN:GPP_A0  DW1,DW0:00000018,84000502 FUNC:NF1  PULL:NONE   RESET:PLTRST TX_DISABLE:1 RX_DISABLE:0 RXINV:NONE   TRIG:OFF         ROUTE:

PIN:GPP_A1  DW1,DW0:00003019,84000402 FUNC:NF1  PULL:UP_20K RESET:PLTRST TX_DISABLE:0 RX_DISABLE:0 RXINV:NONE   TRIG:OFF         ROUTE:

PIN:GPP_A2  DW1,DW0:0000301a,84000402 FUNC:NF1  PULL:UP_20K RESET:PLTRST TX_DISABLE:0 RX_DISABLE:0 RXINV:NONE   TRIG:OFF         ROUTE:

PIN:GPP_A3  DW1,DW0:0000301b,84000402 FUNC:NF1  PULL:UP_20K RESET:PLTRST TX_DISABLE:0 RX_DISABLE:0 RXINV:NONE   TRIG:OFF         ROUTE:

PIN:GPP_A4  DW1,DW0:0000301c,84000402 FUNC:NF1  PULL:UP_20K RESET:PLTRST TX_DISABLE:0 RX_DISABLE:0 RXINV:NONE   TRIG:OFF         ROUTE:

PIN:GPP_A5  DW1,DW0:0000001d,84000600 FUNC:NF1  PULL:NONE   RESET:PLTRST TX_DISABLE:0 RX_DISABLE:1 RXINV:NONE   TRIG:OFF         ROUTE: