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authorNobuhiro Iwamatsu <iwamatsu@nigauri.org>2008-03-07 16:04:25 +0900
committerWolfgang Denk <wd@denx.de>2008-03-23 01:38:22 +0100
commit55774b512fdf63c0516d441cc5da7c54bbffb7f2 (patch)
tree9c19cf9a7b5a47a2bc3f84a5ca93fb36642c7acb /drivers
parent86aea3eaefa248ffb9328e2b50c64720489cdbeb (diff)
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pci: Add CONFIG_PCI_SKIP_HOST_BRIDGE config option
In current source code, when the device number of PCI is 0, process PCI bridge without fail. However, when the device number is 0, it is not PCI always bridge. There are times when device of PCI allocates. When CONFIG_PCI_SKIP_HOST_BRIDGE is enable, this problem is solved when use this patch. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Acked-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/pci/pci.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 50ca6b0..7944b66 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -425,6 +425,9 @@ int pci_hose_scan_bus(struct pci_controller *hose, int bus)
dev < PCI_BDF(bus,PCI_MAX_PCI_DEVICES-1,PCI_MAX_PCI_FUNCTIONS-1);
dev += PCI_BDF(0,0,1))
{
+
+ /* Bus 0 is not necessarily PCI bridge. */
+#if defined(CONFIG_PCI_SKIP_HOST_BRIDGE)
/* Skip our host bridge */
if ( dev == PCI_BDF(hose->first_busno,0,0) ) {
#if defined(CONFIG_PCI_CONFIG_HOST_BRIDGE) /* don't skip host bridge */
@@ -434,10 +437,11 @@ int pci_hose_scan_bus(struct pci_controller *hose, int bus)
if (getenv("pciconfighost") == NULL) {
continue; /* Skip our host bridge */
}
-#else
+#else /* CONFIG_PCI_CONFIG_HOST_BRIDGE */
continue; /* Skip our host bridge */
-#endif
+#endif /* CONFIG_PCI_CONFIG_HOST_BRIDGE */
}
+#endif /* CONFIG_PCI_SKIP_HOST_BRIDGE */
if (PCI_FUNC(dev) && !found_multi)
continue;
@@ -473,8 +477,11 @@ int pci_hose_scan_bus(struct pci_controller *hose, int bus)
hose->fixup_irq(hose, dev);
#ifdef CONFIG_PCI_SCAN_SHOW
+#if defined(CONFIG_PCI_SKIP_HOST_BRIDGE)
/* Skip our host bridge */
- if ( dev != PCI_BDF(hose->first_busno,0,0) ) {
+ if ( dev != PCI_BDF(hose->first_busno,0,0) )
+#endif
+ {
unsigned char int_line;
pci_hose_read_config_byte(hose, dev, PCI_INTERRUPT_LINE,