/* * 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);