Hi Lorenzo, On Fri, 2018-10-05 at 11:29 +0100, Lorenzo Pieralisi wrote: > On Thu, Oct 04, 2018 at 04:34:30PM +0000, Leonard Crestez wrote: > > When the root complex suspends it must send a PME_Turn_Off TLP. > > Implement this by asserting the "turnoff" reset. > > > > On imx7d this functionality is part of the SRC and exposed through the > > linux reset-controller subsystem. On imx6 equivalent bits are in the > > IOMUXC GPR area which the imx6-pcie driver accesses directly. > > Nit: I am merging the series, please define what SRC and GPR are so > that I can update the commit log accordingly, it must be clear to > anyone reading it.
SRC is the System Reset Controller, which controls reset signals to all kinds of devices, among them the PCIe PHY. IOMUXC GPR is a General Purpose Register range in the IOMUXC (pinmux controller) that is used to control various signals all over the SoC. regards Philipp
