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pci: Move PCI device configuration check into a separate weak function 

This patch moves the check, if a device should be skipped in PCI PNP
configuration into the function pci_skip_dev(). This function is defined
as weak so that it can be overwritten by a platform specific one if
needed. The check if the device should get printed in the PCI summary upon
bootup (when CONFIG_PCI_SCAN_SHOW is defined) is moved to the function
pci_print_dev() which is also defined as weak too.

Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Stefan Roese 2008-07-08 12:01:47 +02:00 committed by Wolfgang Denk
parent 4188f04918
commit dc1da42f81
1 changed files with 45 additions and 23 deletions
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68
drivers/pci/pci.c
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@ -411,6 +411,40 @@ void pci_cfgfunc_do_nothing(struct pci_controller *hose,
extern int pciauto_config_device(struct pci_controller *hose, pci_dev_t dev);
extern void pciauto_config_init(struct pci_controller *hose);
int __pci_skip_dev(struct pci_controller *hose, pci_dev_t dev)
{
/*
* Check if pci device should be skipped in configuration
*/
if (dev == PCI_BDF(hose->first_busno, 0, 0)) {
#if defined(CONFIG_PCI_CONFIG_HOST_BRIDGE) /* don't skip host bridge */
/*
* Only skip configuration if "pciconfighost" is not set
*/
if (getenv("pciconfighost") == NULL)
return 1;
#else
return 1;
#endif
}
return 0;
}
int pci_skip_dev(struct pci_controller *hose, pci_dev_t dev)
__attribute__((weak, alias("__pci_skip_dev")));
#ifdef CONFIG_PCI_SCAN_SHOW
int __pci_print_dev(struct pci_controller *hose, pci_dev_t dev)
{
if (dev == PCI_BDF(hose->first_busno, 0, 0))
return 0;
return 1;
}
int pci_print_dev(struct pci_controller *hose, pci_dev_t dev)
__attribute__((weak, alias("__pci_print_dev")));
#endif /* CONFIG_PCI_SCAN_SHOW */
int pci_hose_scan_bus(struct pci_controller *hose, int bus)
{
unsigned int sub_bus, found_multi=0;
@ -423,21 +457,10 @@ int pci_hose_scan_bus(struct pci_controller *hose, int bus)
for (dev = PCI_BDF(bus,0,0);
dev < PCI_BDF(bus,PCI_MAX_PCI_DEVICES-1,PCI_MAX_PCI_FUNCTIONS-1);
dev += PCI_BDF(0,0,1))
{
/* 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 */
/*
* Only skip hostbridge configuration if "pciconfighost" is not set
*/
if (getenv("pciconfighost") == NULL) {
continue; /* Skip our host bridge */
}
#else
continue; /* Skip our host bridge */
#endif
}
dev += PCI_BDF(0,0,1)) {
if (pci_skip_dev(hose, dev))
continue;
if (PCI_FUNC(dev) && !found_multi)
continue;
@ -473,15 +496,14 @@ int pci_hose_scan_bus(struct pci_controller *hose, int bus)
hose->fixup_irq(hose, dev);
#ifdef CONFIG_PCI_SCAN_SHOW
/* Skip our host bridge */
if ( dev != PCI_BDF(hose->first_busno,0,0) ) {
unsigned char int_line;
if (pci_print_dev(hose, dev)) {
unsigned char int_line;
pci_hose_read_config_byte(hose, dev, PCI_INTERRUPT_LINE,
&int_line);
printf(" %02x %02x %04x %04x %04x %02x\n",
PCI_BUS(dev), PCI_DEV(dev), vendor, device, class,
int_line);
pci_hose_read_config_byte(hose, dev, PCI_INTERRUPT_LINE,
&int_line);
printf(" %02x %02x %04x %04x %04x %02x\n",
PCI_BUS(dev), PCI_DEV(dev), vendor, device, class,
int_line);
}
#endif
}