1 /*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2000, 2001, 04 Keith M Wesolowski
7 */
8 #include <linux/init.h>
9 #include <linux/kernel.h>
10 #include <linux/pci.h>
11 #include <linux/types.h>
12
13 #include <asm/lasat/lasat.h>
14
15 #include <irq.h>
16
17 extern struct pci_ops nile4_pci_ops;
18 extern struct pci_ops gt64xxx_pci0_ops;
19 static struct resource lasat_pci_mem_resource = {
20 .name = "LASAT PCI MEM",
21 .start = 0x18000000,
22 .end = 0x19ffffff,
23 .flags = IORESOURCE_MEM,
24 };
25
26 static struct resource lasat_pci_io_resource = {
27 .name = "LASAT PCI IO",
28 .start = 0x1a000000,
29 .end = 0x1bffffff,
30 .flags = IORESOURCE_IO,
31 };
32
33 static struct pci_controller lasat_pci_controller = {
34 .mem_resource = &lasat_pci_mem_resource,
35 .io_resource = &lasat_pci_io_resource,
36 };
37
lasat_pci_setup(void)38 static int __init lasat_pci_setup(void)
39 {
40 printk(KERN_DEBUG "PCI: starting\n");
41
42 if (IS_LASAT_200())
43 lasat_pci_controller.pci_ops = &nile4_pci_ops;
44 else
45 lasat_pci_controller.pci_ops = >64xxx_pci0_ops;
46
47 register_pci_controller(&lasat_pci_controller);
48
49 return 0;
50 }
51
52 arch_initcall(lasat_pci_setup);
53
54 #define LASAT_IRQ_ETH1 (LASAT_IRQ_BASE + 0)
55 #define LASAT_IRQ_ETH0 (LASAT_IRQ_BASE + 1)
56 #define LASAT_IRQ_HDC (LASAT_IRQ_BASE + 2)
57 #define LASAT_IRQ_COMP (LASAT_IRQ_BASE + 3)
58 #define LASAT_IRQ_HDLC (LASAT_IRQ_BASE + 4)
59 #define LASAT_IRQ_PCIA (LASAT_IRQ_BASE + 5)
60 #define LASAT_IRQ_PCIB (LASAT_IRQ_BASE + 6)
61 #define LASAT_IRQ_PCIC (LASAT_IRQ_BASE + 7)
62 #define LASAT_IRQ_PCID (LASAT_IRQ_BASE + 8)
63
pcibios_map_irq(const struct pci_dev * dev,u8 slot,u8 pin)64 int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
65 {
66 switch (slot) {
67 case 1:
68 case 2:
69 case 3:
70 return LASAT_IRQ_PCIA + (((slot-1) + (pin-1)) % 4);
71 case 4:
72 return LASAT_IRQ_ETH1; /* Ethernet 1 (LAN 2) */
73 case 5:
74 return LASAT_IRQ_ETH0; /* Ethernet 0 (LAN 1) */
75 case 6:
76 return LASAT_IRQ_HDC; /* IDE controller */
77 default:
78 return 0xff; /* Illegal */
79 }
80
81 return -1;
82 }
83
84 /* Do platform specific device initialization at pci_enable_device() time */
pcibios_plat_dev_init(struct pci_dev * dev)85 int pcibios_plat_dev_init(struct pci_dev *dev)
86 {
87 return 0;
88 }
89