From: Ed Swarthout <Ed.Swarthout@freescale.com>
Date: Wed, 11 Jul 2007 19:51:35 +0000 (-0500)
Subject: Start pci hose scan from hose->current_busno.
X-Git-Tag: v1.3.0-rc1~19^2~20^2~18^2~10
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=40e81addab7bb74d20ddf681ce9babc880a828ee;p=u-boot

Start pci hose scan from hose->current_busno.

Ensure hose->current_busno is not less than first_busno.  This fixes
broken board code which leaves current_busno=0 when first_busno is
greater than 0 for the cases with multiple controllers.

Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com>
---

diff --git a/drivers/pci.c b/drivers/pci.c
index 050582f782..41589192c1 100644
--- a/drivers/pci.c
+++ b/drivers/pci.c
@@ -490,10 +490,16 @@ int pci_hose_scan_bus(struct pci_controller *hose, int bus)
 
 int pci_hose_scan(struct pci_controller *hose)
 {
+	/* Start scan at current_busno.
+	 * PCIe will start scan at first_busno+1.
+	 */
+	/* For legacy support, ensure current>=first */
+	if (hose->first_busno > hose->current_busno)
+		hose->current_busno = hose->first_busno;
 #ifdef CONFIG_PCI_PNP
 	pciauto_config_init(hose);
 #endif
-	return pci_hose_scan_bus(hose, hose->first_busno);
+	return pci_hose_scan_bus(hose, hose->current_busno);
 }
 
 void pci_init(void)