On Thu, Dec 05, 2013 at 12:27:40AM -0800, Yinghai Lu wrote: > On Wed, Dec 4, 2013 at 11:38 PM, Jay Agarwal <jagarwal@xxxxxxxxxx> wrote: > >> On Thu, Dec 05, 2013 at 01:44:53PM +0800, Jay Agarwal wrote: > >> > I am seeing below issue on an ARM platform with CONFIG_PCIEPORTBUS > >> > enabled in kernel > >> > > >> > ISSUE: Any memory access by devices fails > >> > > >> > FINDINGS: > >> > > >> > 1. No bridge windows like below are setup and probably this is not > >> > allowing any memory access by devices > >> > >> Does your RC driver calls pci_assign_unassigned_resources after > >> pci_common_init? > >> > > No it does not. Btw, I tried calling it but it also did not help and same problem. > > Please make sure you pci_assign_unassigned_resources get called via > fs_initcall(). Why does this have to be called as fs_initcall() time? Does it have to be exactly then or can it be at any later time? The Tegra PCIe driver is actually a regular driver, and run at the time of device_initcall(). In fact it may even be probed much later because it can depend on regulators and such that only become available later and therefore cause the PCIe driver to defer it's probe. Thierry
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