projects / thirdparty / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * arch/arm/mach-ixp4xx/gtwx5715-pci.c | |
| 3 | * | |
| 4 | * Gemtek GTWX5715 (Linksys WRV54G) board setup | |
| 5 | * | |
| 6 | * Copyright (C) 2004 George T. Joseph | |
| 7 | * Derived from Coyote | |
| 8 | * | |
| 9 | * This program is free software; you can redistribute it and/or | |
| 10 | * modify it under the terms of the GNU General Public License | |
| 11 | * as published by the Free Software Foundation; either version 2 | |
| 12 | * of the License, or (at your option) any later version. | |
| 13 | * | |
| 14 | * This program is distributed in the hope that it will be useful, | |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 | * GNU General Public License for more details. | |
| 18 | * | |
| 19 | * You should have received a copy of the GNU General Public License | |
| 20 | * along with this program; if not, write to the Free Software | |
| 21 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
| 22 | * | |
| 23 | */ | |
| 24 | ||
| 25 | #include <linux/pci.h> | |
| 26 | #include <linux/init.h> | |
| 27 | #include <linux/delay.h> | |
| ddaca4a2 MLJ |
28 | #include <linux/irq.h> |
| 29 | ||
| 1da177e4 | 30 | #include <asm/mach-types.h> |
| a09e64fb RK |
31 | #include <mach/hardware.h> |
| 32 | #include <mach/gtwx5715.h> | |
| 1da177e4 LT |
33 | #include <asm/mach/pci.h> |
| 34 | ||
| bdf82b59 DS |
35 | /* |
| 36 | * The exact GPIO pins and IRQs are defined in arch-ixp4xx/gtwx5715.h | |
| 37 | * Slot 0 isn't actually populated with a card connector but | |
| 38 | * we initialize it anyway in case a future version has the | |
| 39 | * slot populated or someone with good soldering skills has | |
| 40 | * some free time. | |
| 41 | */ | |
| 1da177e4 LT |
42 | void __init gtwx5715_pci_preinit(void) |
| 43 | { | |
| 6cab4860 DB |
44 | set_irq_type(GTWX5715_PCI_SLOT0_INTA_IRQ, IRQ_TYPE_LEVEL_LOW); |
| 45 | set_irq_type(GTWX5715_PCI_SLOT0_INTB_IRQ, IRQ_TYPE_LEVEL_LOW); | |
| 46 | set_irq_type(GTWX5715_PCI_SLOT1_INTA_IRQ, IRQ_TYPE_LEVEL_LOW); | |
| 47 | set_irq_type(GTWX5715_PCI_SLOT1_INTB_IRQ, IRQ_TYPE_LEVEL_LOW); | |
| 1da177e4 LT |
48 | |
| 49 | ixp4xx_pci_preinit(); | |
| 50 | } | |
| 51 | ||
| 52 | ||
| 53 | static int __init gtwx5715_map_irq(struct pci_dev *dev, u8 slot, u8 pin) | |
| 54 | { | |
| 55 | int rc; | |
| 56 | static int gtwx5715_irqmap | |
| 57 | [GTWX5715_PCI_SLOT_COUNT] | |
| 58 | [GTWX5715_PCI_INT_PIN_COUNT] = { | |
| 59 | {GTWX5715_PCI_SLOT0_INTA_IRQ, GTWX5715_PCI_SLOT0_INTB_IRQ}, | |
| 60 | {GTWX5715_PCI_SLOT1_INTA_IRQ, GTWX5715_PCI_SLOT1_INTB_IRQ}, | |
| 61 | }; | |
| 62 | ||
| 63 | if (slot >= GTWX5715_PCI_SLOT_COUNT || | |
| 64 | pin >= GTWX5715_PCI_INT_PIN_COUNT) rc = -1; | |
| 65 | else | |
| 66 | rc = gtwx5715_irqmap[slot][pin-1]; | |
| 67 | ||
| 8e86f427 | 68 | printk("%s: Mapped slot %d pin %d to IRQ %d\n", __func__, slot, pin, rc); |
| 1da177e4 LT |
69 | return(rc); |
| 70 | } | |
| 71 | ||
| 72 | struct hw_pci gtwx5715_pci __initdata = { | |
| 73 | .nr_controllers = 1, | |
| 74 | .preinit = gtwx5715_pci_preinit, | |
| 75 | .swizzle = pci_std_swizzle, | |
| 76 | .setup = ixp4xx_setup, | |
| 77 | .scan = ixp4xx_scan_bus, | |
| 78 | .map_irq = gtwx5715_map_irq, | |
| 79 | }; | |
| 80 | ||
| 81 | int __init gtwx5715_pci_init(void) | |
| 82 | { | |
| 83 | if (machine_is_gtwx5715()) | |
| 84 | { | |
| 85 | pci_common_init(>wx5715_pci); | |
| 86 | } | |
| 87 | ||
| 88 | return 0; | |
| 89 | } | |
| 90 | ||
| 91 | subsys_initcall(gtwx5715_pci_init); |