| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * arch/arch/mach-ixp4xx/ixdpg425-pci.c |
| 3 | * |
| 4 | * PCI setup routines for Intel IXDPG425 Platform |
| 5 | * |
| 6 | * Copyright (C) 2004 MontaVista Softwrae, Inc. |
| 7 | * |
| 8 | * Maintainer: Deepak Saxena <dsaxena@plexity.net> |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License version 2 as |
| 12 | * published by the Free Software Foundation. |
| 13 | * |
| 14 | */ |
| 15 | |
| 16 | #include <linux/kernel.h> |
| 17 | #include <linux/pci.h> |
| 18 | #include <linux/init.h> |
| 19 | |
| 20 | #include <asm/mach-types.h> |
| 21 | #include <asm/hardware.h> |
| 22 | #include <asm/irq.h> |
| 23 | |
| 24 | #include <asm/mach/pci.h> |
| 25 | |
| 26 | extern void ixp4xx_pci_preinit(void); |
| 27 | extern int ixp4xx_setup(int nr, struct pci_sys_data *sys); |
| 28 | extern struct pci_bus *ixp4xx_scan_bus(int nr, struct pci_sys_data *sys); |
| 29 | |
| 30 | void __init ixdpg425_pci_preinit(void) |
| 31 | { |
| 32 | gpio_line_config(6, IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW); |
| 33 | gpio_line_config(7, IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW); |
| 34 | |
| 35 | gpio_line_isr_clear(6); |
| 36 | gpio_line_isr_clear(7); |
| 37 | |
| 38 | ixp4xx_pci_preinit(); |
| 39 | } |
| 40 | |
| 41 | static int __init ixdpg425_map_irq(struct pci_dev *dev, u8 slot, u8 pin) |
| 42 | { |
| 43 | if (slot == 12 || slot == 13) |
| 44 | return IRQ_IXP4XX_GPIO7; |
| 45 | else if (slot == 14) |
| 46 | return IRQ_IXP4XX_GPIO6; |
| 47 | else return -1; |
| 48 | } |
| 49 | |
| 50 | struct hw_pci ixdpg425_pci __initdata = { |
| 51 | .nr_controllers = 1, |
| 52 | .preinit = ixdpg425_pci_preinit, |
| 53 | .swizzle = pci_std_swizzle, |
| 54 | .setup = ixp4xx_setup, |
| 55 | .scan = ixp4xx_scan_bus, |
| 56 | .map_irq = ixdpg425_map_irq, |
| 57 | }; |
| 58 | |
| 59 | int __init ixdpg425_pci_init(void) |
| 60 | { |
| 61 | if (machine_is_ixdpg425()) |
| 62 | pci_common_init(&ixdpg425_pci); |
| 63 | return 0; |
| 64 | } |
| 65 | |
| 66 | subsys_initcall(ixdpg425_pci_init); |