diff options
Diffstat (limited to 'arch/arm/mach-integrator/pci.c')
-rw-r--r-- | arch/arm/mach-integrator/pci.c | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/arch/arm/mach-integrator/pci.c b/arch/arm/mach-integrator/pci.c deleted file mode 100644 index 6c1667e728f5..000000000000 --- a/arch/arm/mach-integrator/pci.c +++ /dev/null @@ -1,113 +0,0 @@ -/* - * linux/arch/arm/mach-integrator/pci-integrator.c - * - * Copyright (C) 1999 ARM Limited - * Copyright (C) 2000 Deep Blue Solutions Ltd - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * - * PCI functions for Integrator - */ -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/interrupt.h> -#include <linux/init.h> - -#include <asm/mach/pci.h> -#include <asm/mach-types.h> - -#include <mach/irqs.h> - -/* - * A small note about bridges and interrupts. The DECchip 21050 (and - * later) adheres to the PCI-PCI bridge specification. This says that - * the interrupts on the other side of a bridge are swizzled in the - * following manner: - * - * Dev Interrupt Interrupt - * Pin on Pin on - * Device Connector - * - * 4 A A - * B B - * C C - * D D - * - * 5 A B - * B C - * C D - * D A - * - * 6 A C - * B D - * C A - * D B - * - * 7 A D - * B A - * C B - * D C - * - * Where A = pin 1, B = pin 2 and so on and pin=0 = default = A. - * Thus, each swizzle is ((pin-1) + (device#-4)) % 4 - */ - -/* - * This routine handles multiple bridges. - */ -static u8 __init integrator_swizzle(struct pci_dev *dev, u8 *pinp) -{ - if (*pinp == 0) - *pinp = 1; - - return pci_common_swizzle(dev, pinp); -} - -static int irq_tab[4] __initdata = { - IRQ_AP_PCIINT0, IRQ_AP_PCIINT1, IRQ_AP_PCIINT2, IRQ_AP_PCIINT3 -}; - -/* - * map the specified device/slot/pin to an IRQ. This works out such - * that slot 9 pin 1 is INT0, pin 2 is INT1, and slot 10 pin 1 is INT1. - */ -static int __init integrator_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) -{ - int intnr = ((slot - 9) + (pin - 1)) & 3; - - return irq_tab[intnr]; -} - -extern void pci_v3_init(void *); - -static struct hw_pci integrator_pci __initdata = { - .swizzle = integrator_swizzle, - .map_irq = integrator_map_irq, - .setup = pci_v3_setup, - .nr_controllers = 1, - .ops = &pci_v3_ops, - .preinit = pci_v3_preinit, - .postinit = pci_v3_postinit, -}; - -static int __init integrator_pci_init(void) -{ - if (machine_is_integrator()) - pci_common_init(&integrator_pci); - return 0; -} - -subsys_initcall(integrator_pci_init); |