projects / deliverable / 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 | 28 | #include <linux/irq.h> |
| 1da177e4 | 29 | #include <asm/mach-types.h> |
| a09e64fb | 30 | #include <mach/hardware.h> |
| 1da177e4 LT |
31 | #include <asm/mach/pci.h> |
| 32 | ||
| 8d3fdf31 | 33 | #define SLOT0_DEVID 0 |
| 8d3fdf31 | 34 | #define SLOT1_DEVID 1 |
| 0fd7dc7f KH |
35 | #define INTA 10 /* slot 1 has INTA and INTB crossed */ |
| 36 | #define INTB 11 | |
| a8b7b340 | 37 | |
| bdf82b59 | 38 | /* |
| bdf82b59 DS |
39 | * Slot 0 isn't actually populated with a card connector but |
| 40 | * we initialize it anyway in case a future version has the | |
| 41 | * slot populated or someone with good soldering skills has | |
| 42 | * some free time. | |
| 43 | */ | |
| 1da177e4 LT |
44 | void __init gtwx5715_pci_preinit(void) |
| 45 | { | |
| 6845664a TG |
46 | irq_set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW); |
| 47 | irq_set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW); | |
| 1da177e4 LT |
48 | ixp4xx_pci_preinit(); |
| 49 | } | |
| 50 | ||
| 51 | ||
| d5341942 | 52 | static int __init gtwx5715_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) |
| 1da177e4 | 53 | { |
| 0fd7dc7f | 54 | int rc = -1; |
| 1da177e4 | 55 | |
| 0fd7dc7f KH |
56 | if ((slot == SLOT0_DEVID && pin == 1) || |
| 57 | (slot == SLOT1_DEVID && pin == 2)) | |
| 58 | rc = IXP4XX_GPIO_IRQ(INTA); | |
| 59 | else if ((slot == SLOT0_DEVID && pin == 2) || | |
| 60 | (slot == SLOT1_DEVID && pin == 1)) | |
| 61 | rc = IXP4XX_GPIO_IRQ(INTB); | |
| 1da177e4 | 62 | |
| 8d3fdf31 KH |
63 | printk(KERN_INFO "%s: Mapped slot %d pin %d to IRQ %d\n", |
| 64 | __func__, slot, pin, rc); | |
| 65 | return rc; | |
| 1da177e4 LT |
66 | } |
| 67 | ||
| 68 | struct hw_pci gtwx5715_pci __initdata = { | |
| 69 | .nr_controllers = 1, | |
| c23bfc38 | 70 | .ops = &ixp4xx_ops, |
| 1da177e4 | 71 | .preinit = gtwx5715_pci_preinit, |
| 1da177e4 | 72 | .setup = ixp4xx_setup, |
| 1da177e4 LT |
73 | .map_irq = gtwx5715_map_irq, |
| 74 | }; | |
| 75 | ||
| 76 | int __init gtwx5715_pci_init(void) | |
| 77 | { | |
| 78 | if (machine_is_gtwx5715()) | |
| 1da177e4 | 79 | pci_common_init(>wx5715_pci); |
| 1da177e4 LT |
80 | |
| 81 | return 0; | |
| 82 | } | |
| 83 | ||
| 84 | subsys_initcall(gtwx5715_pci_init); |