mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-28 07:04:00 +08:00
c23bfc3835
Most PCI implementations perform simple root bus scanning. Rather than having each group of platforms provide a duplicated bus scan function, provide the PCI configuration ops structure via the hw_pci structure, and call the root bus scanning function from core ARM PCI code. Acked-by: Krzysztof Hałasa <khc@pm.waw.pl> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
48 lines
1.0 KiB
C
48 lines
1.0 KiB
C
/*
|
|
* linux/arch/arm/mach-footbridge/ebsa285-pci.c
|
|
*
|
|
* PCI bios-type initialisation for PCI machines
|
|
*
|
|
* Bits taken from various places.
|
|
*/
|
|
#include <linux/kernel.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/init.h>
|
|
|
|
#include <asm/irq.h>
|
|
#include <asm/mach/pci.h>
|
|
#include <asm/mach-types.h>
|
|
|
|
static int irqmap_ebsa285[] __initdata = { IRQ_IN3, IRQ_IN1, IRQ_IN0, IRQ_PCI };
|
|
|
|
static int __init ebsa285_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
|
|
{
|
|
if (dev->vendor == PCI_VENDOR_ID_CONTAQ &&
|
|
dev->device == PCI_DEVICE_ID_CONTAQ_82C693)
|
|
switch (PCI_FUNC(dev->devfn)) {
|
|
case 1: return 14;
|
|
case 2: return 15;
|
|
case 3: return 12;
|
|
}
|
|
|
|
return irqmap_ebsa285[(slot + pin) & 3];
|
|
}
|
|
|
|
static struct hw_pci ebsa285_pci __initdata = {
|
|
.map_irq = ebsa285_map_irq,
|
|
.nr_controllers = 1,
|
|
.ops = &dc21285_ops,
|
|
.setup = dc21285_setup,
|
|
.preinit = dc21285_preinit,
|
|
.postinit = dc21285_postinit,
|
|
};
|
|
|
|
static int __init ebsa285_init_pci(void)
|
|
{
|
|
if (machine_is_ebsa285())
|
|
pci_common_init(&ebsa285_pci);
|
|
return 0;
|
|
}
|
|
|
|
subsys_initcall(ebsa285_init_pci);
|