1 /*
2 * arch/arch/mach-ixp4xx/wg302v2-pci.c
3 *
4 * PCI setup routines for the Netgear WG302 v2 and WAG302 v2
5 *
6 * Copyright (C) 2007 Imre Kaloz <kaloz@openwrt.org>
7 *
8 * based on coyote-pci.c:
9 * Copyright (C) 2002 Jungo Software Technologies.
10 * Copyright (C) 2003 MontaVista Software, Inc.
11 *
12 * Maintainer: Imre Kaloz <kaloz@openwrt.org>
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License version 2 as
16 * published by the Free Software Foundation.
17 *
18 */
19
20 #include <linux/kernel.h>
21 #include <linux/pci.h>
22 #include <linux/init.h>
23 #include <linux/irq.h>
24
25 #include <asm/mach-types.h>
26 #include <mach/hardware.h>
27
28 #include <asm/mach/pci.h>
29
wg302v2_pci_preinit(void)30 void __init wg302v2_pci_preinit(void)
31 {
32 irq_set_irq_type(IRQ_IXP4XX_GPIO8, IRQ_TYPE_LEVEL_LOW);
33 irq_set_irq_type(IRQ_IXP4XX_GPIO9, IRQ_TYPE_LEVEL_LOW);
34
35 ixp4xx_pci_preinit();
36 }
37
wg302v2_map_irq(const struct pci_dev * dev,u8 slot,u8 pin)38 static int __init wg302v2_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
39 {
40 if (slot == 1)
41 return IRQ_IXP4XX_GPIO8;
42 else if (slot == 2)
43 return IRQ_IXP4XX_GPIO9;
44 else return -1;
45 }
46
47 struct hw_pci wg302v2_pci __initdata = {
48 .nr_controllers = 1,
49 .preinit = wg302v2_pci_preinit,
50 .swizzle = pci_std_swizzle,
51 .setup = ixp4xx_setup,
52 .scan = ixp4xx_scan_bus,
53 .map_irq = wg302v2_map_irq,
54 };
55
wg302v2_pci_init(void)56 int __init wg302v2_pci_init(void)
57 {
58 if (machine_is_wg302v2())
59 pci_common_init(&wg302v2_pci);
60 return 0;
61 }
62
63 subsys_initcall(wg302v2_pci_init);
64