From 4efe52bf23c96cee7052273bd8549caee4d0fdc2 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Wed, 12 Nov 2014 18:26:49 -0700 Subject: pci: Honour pci_skip_dev() When enumerating devices, honour the pci_skip_dev() function. This can be used by PCI controller drivers to restrict which devices will be probed. This is required by the NVIDIA Tegra PCIe controller driver, which will fail with a data abort exception if an access is attempted to a device number larger than 0 outside of bus 0. pci_skip_dev() is therefore implemented to prevent any such accesses. Signed-off-by: Thierry Reding Signed-off-by: Simon Glass --- drivers/pci/pci.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 5d547901b8..7ee21d1c1d 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -195,6 +195,9 @@ pci_dev_t pci_find_devices(struct pci_device_id *ids, int index) bdf < PCI_BDF(bus + 1, 0, 0); #endif bdf += PCI_BDF(0, 0, 1)) { + if (pci_skip_dev(hose, bdf)) + continue; + if (!PCI_FUNC(bdf)) { pci_read_config_byte(bdf, PCI_HEADER_TYPE, -- cgit v1.2.1