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path: root/drivers/pci/fsl_pci_init.c
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Diffstat (limited to 'drivers/pci/fsl_pci_init.c')
-rw-r--r--drivers/pci/fsl_pci_init.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/pci/fsl_pci_init.c b/drivers/pci/fsl_pci_init.c
index bb2813f..38a16e5 100644
--- a/drivers/pci/fsl_pci_init.c
+++ b/drivers/pci/fsl_pci_init.c
@@ -168,8 +168,21 @@ fsl_pci_init(struct pci_controller *hose)
}
#ifndef CONFIG_PCI_NOSCAN
- printf (" Scanning PCI bus %02x\n", hose->current_busno);
- hose->last_busno = pci_hose_scan_bus(hose,hose->current_busno);
+ pci_hose_read_config_byte(hose, dev, PCI_CLASS_PROG, &temp8);
+
+ /* Programming Interface (PCI_CLASS_PROG)
+ * 0 == pci host or pcie root-complex,
+ * 1 == pci agent or pcie end-point
+ */
+ if (!temp8) {
+ printf(" Scanning PCI bus %02x\n",
+ hose->current_busno);
+ hose->last_busno = pci_hose_scan_bus(hose, hose->current_busno);
+ } else {
+ debug(" Not scanning PCI bus %02x. PI=%x\n",
+ hose->current_busno, temp8);
+ hose->last_busno = hose->current_busno;
+ }
if ( bridge ) { /* update limit regs and subordinate busno */
pciauto_postscan_setup_bridge(hose, dev, hose->last_busno);