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 <treding@nvidia.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 5d54790..7ee21d1 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -195,6 +195,9 @@
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,