| /* |
| * arch/arm/mach-ixp4xx/gtwx5715-pci.c |
| * |
| * Gemtek GTWX5715 (Linksys WRV54G) board setup |
| * |
| * Copyright (C) 2004 George T. Joseph |
| * Derived from Coyote |
| * |
| * 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. |
| * |
| */ |
| |
| #include <linux/pci.h> |
| #include <linux/init.h> |
| #include <linux/delay.h> |
| #include <linux/irq.h> |
| #include <asm/mach-types.h> |
| #include <mach/hardware.h> |
| #include <asm/mach/pci.h> |
| |
| #define SLOT0_DEVID 0 |
| #define SLOT1_DEVID 1 |
| #define INTA 10 /* slot 1 has INTA and INTB crossed */ |
| #define INTB 11 |
| |
| /* |
| * Slot 0 isn't actually populated with a card connector but |
| * we initialize it anyway in case a future version has the |
| * slot populated or someone with good soldering skills has |
| * some free time. |
| */ |
| void __init gtwx5715_pci_preinit(void) |
| { |
| irq_set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW); |
| irq_set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW); |
| ixp4xx_pci_preinit(); |
| } |
| |
| |
| static int __init gtwx5715_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) |
| { |
| int rc = -1; |
| |
| if ((slot == SLOT0_DEVID && pin == 1) || |
| (slot == SLOT1_DEVID && pin == 2)) |
| rc = IXP4XX_GPIO_IRQ(INTA); |
| else if ((slot == SLOT0_DEVID && pin == 2) || |
| (slot == SLOT1_DEVID && pin == 1)) |
| rc = IXP4XX_GPIO_IRQ(INTB); |
| |
| printk(KERN_INFO "%s: Mapped slot %d pin %d to IRQ %d\n", |
| __func__, slot, pin, rc); |
| return rc; |
| } |
| |
| struct hw_pci gtwx5715_pci __initdata = { |
| .nr_controllers = 1, |
| .ops = &ixp4xx_ops, |
| .preinit = gtwx5715_pci_preinit, |
| .setup = ixp4xx_setup, |
| .map_irq = gtwx5715_map_irq, |
| }; |
| |
| int __init gtwx5715_pci_init(void) |
| { |
| if (machine_is_gtwx5715()) |
| pci_common_init(>wx5715_pci); |
| |
| return 0; |
| } |
| |
| subsys_initcall(gtwx5715_pci_init); |