fsl_pci_init do not scan bus when configured as an end-point
Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com>
Acked-by: Andy Fleming <afleming@freescale.com>
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 @@
}
#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);