ar71xx: add support for ar7241 and ar7242
[openwrt/svn-archive/archive.git] / target / linux / ar71xx / files / arch / mips / ar71xx / pci.c
1 /*
2 * Atheros AR71xx PCI setup code
3 *
4 * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
5 * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
6 *
7 * Parts of this file are based on Atheros' 2.6.15 BSP
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License version 2 as published
11 * by the Free Software Foundation.
12 */
13
14 #include <linux/kernel.h>
15
16 #include <asm/traps.h>
17
18 #include <asm/mach-ar71xx/ar71xx.h>
19 #include <asm/mach-ar71xx/pci.h>
20
21 unsigned ar71xx_pci_nr_irqs __initdata;
22 struct ar71xx_pci_irq *ar71xx_pci_irq_map __initdata;
23
24 int (*ar71xx_pci_plat_dev_init)(struct pci_dev *dev);
25
26 static int ar71xx_be_handler(struct pt_regs *regs, int is_fixup)
27 {
28 int err = 0;
29
30 err = ar71xx_pci_be_handler(is_fixup);
31
32 return (is_fixup && !err) ? MIPS_BE_FIXUP : MIPS_BE_FATAL;
33 }
34
35 int pcibios_plat_dev_init(struct pci_dev *dev)
36 {
37 if (ar71xx_pci_plat_dev_init)
38 return ar71xx_pci_plat_dev_init(dev);
39
40 return 0;
41 }
42
43 int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
44 {
45 int ret = 0;
46
47 switch (ar71xx_soc) {
48 case AR71XX_SOC_AR7130:
49 case AR71XX_SOC_AR7141:
50 case AR71XX_SOC_AR7161:
51 ret = ar71xx_pcibios_map_irq(dev, slot, pin);
52 break;
53
54 case AR71XX_SOC_AR7240:
55 case AR71XX_SOC_AR7241:
56 case AR71XX_SOC_AR7242:
57 ret = ar724x_pcibios_map_irq(dev, slot, pin);
58 break;
59
60 default:
61 break;
62 }
63
64 return ret;
65 }
66
67 int __init ar71xx_pci_init(unsigned nr_irqs, struct ar71xx_pci_irq *map)
68 {
69 int ret = 0;
70
71 switch (ar71xx_soc) {
72 case AR71XX_SOC_AR7130:
73 case AR71XX_SOC_AR7141:
74 case AR71XX_SOC_AR7161:
75 board_be_handler = ar71xx_be_handler;
76 ret = ar71xx_pcibios_init();
77 break;
78
79 case AR71XX_SOC_AR7240:
80 case AR71XX_SOC_AR7241:
81 case AR71XX_SOC_AR7242:
82 ret = ar724x_pcibios_init();
83 break;
84
85 default:
86 return 0;
87 }
88
89 ar71xx_pci_nr_irqs = nr_irqs;
90 ar71xx_pci_irq_map = map;
91
92 return ret;
93 }