Contributors: 5
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Linus Torvalds |
188 |
82.46% |
1 |
14.29% |
| Russell King |
25 |
10.96% |
3 |
42.86% |
| Ben Dooks |
13 |
5.70% |
1 |
14.29% |
| Greg Kroah-Hartman |
1 |
0.44% |
1 |
14.29% |
| Ralf Baechle |
1 |
0.44% |
1 |
14.29% |
| Total |
228 |
|
7 |
|
// SPDX-License-Identifier: GPL-2.0
/*
* linux/arch/arm/mach-footbridge/cats-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>
/* cats host-specific stuff */
static int irqmap_cats[] = { IRQ_PCI, IRQ_IN0, IRQ_IN1, IRQ_IN3 };
static u8 cats_no_swizzle(struct pci_dev *dev, u8 *pin)
{
return 0;
}
static int cats_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
if (dev->irq >= 255)
return -1; /* not a valid interrupt. */
if (dev->irq >= 128)
return dev->irq & 0x1f;
if (dev->irq >= 1 && dev->irq <= 4)
return irqmap_cats[dev->irq - 1];
if (dev->irq != 0)
printk("PCI: device %02x:%02x has unknown irq line %x\n",
dev->bus->number, dev->devfn, dev->irq);
return -1;
}
/*
* why not the standard PCI swizzle? does this prevent 4-port tulip
* cards being used (ie, pci-pci bridge based cards)?
*/
static struct hw_pci cats_pci __initdata = {
.swizzle = cats_no_swizzle,
.map_irq = cats_map_irq,
.nr_controllers = 1,
.ops = &dc21285_ops,
.setup = dc21285_setup,
.preinit = dc21285_preinit,
.postinit = dc21285_postinit,
};
static int __init cats_pci_init(void)
{
if (machine_is_cats())
pci_common_init(&cats_pci);
return 0;
}
subsys_initcall(cats_pci_init);