On Friday 05 September 2014 14:33:54 Murali Karicheri wrote: > > This looks like it's a shared register of some sort that doesn't > > really belong into the registers of a particular port. Could it > > be that it's actually for the PHY? > > > This a shared device configuration register between the two ports the > desciption states it is bootstrap configuration of the PCIe module as > Endpoint or Root complex and Not Phy. Hope below text will help. Ok. Why do you want to have this user-selectable though? Can't it just be set by the boot loader before starting Linux? Arnd > Table 3-23 Device Configuration Register (DEVCFG) > > > PCIESSMODE[1:0] 00b PCIESSMODE is used to control the > functionality of PCIESS module out of > reset. This MMR output is connected to > DEVTYPE input of PCIESS > (Changes from > Nysh) : Note that in Nysh this value came > from a bootstrap pin. > 00 : Endpoint > 01 : Legacy Endpoint > 10 : Rootcomplex > 11 : Reserved > PCIESS_1_MODE[1:0 > ] > 00b PCIESSMODE is used to control the > functionality of PCIE_1 module out of > reset. This MMR output is connected to > DEVTYPE input of PCIE_1 > 00 : Endpoint > 01 : Legacy Endpoint > 10 : Rootcomplex > 11 : Reserv > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
