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) 2004 by Ralf Baechle (ralf@linux-mips.org)
7 */
8 #include <linux/init.h>
9 #include <linux/kernel.h>
10 #include <linux/types.h>
11 #include <linux/pci.h>
12 #include <asm/titan_dep.h>
13
14 extern struct pci_ops titan_pci_ops;
15
16 static struct resource py_mem_resource = {
17 .start = 0xe0000000UL,
18 .end = 0xe3ffffffUL,
19 .name = "Titan PCI MEM",
20 .flags = IORESOURCE_MEM
21 };
22
23 /*
24 * PMON really reserves 16MB of I/O port space but that's stupid, nothing
25 * needs that much since allocations are limited to 256 bytes per device
26 * anyway. So we just claim 64kB here.
27 */
28 #define TITAN_IO_SIZE 0x0000ffffUL
29 #define TITAN_IO_BASE 0xe8000000UL
30
31 static struct resource py_io_resource = {
32 .start = 0x00001000UL,
33 .end = TITAN_IO_SIZE - 1,
34 .name = "Titan IO MEM",
35 .flags = IORESOURCE_IO,
36 };
37
38 static struct pci_controller py_controller = {
39 .pci_ops = &titan_pci_ops,
40 .mem_resource = &py_mem_resource,
41 .mem_offset = 0x00000000UL,
42 .io_resource = &py_io_resource,
43 .io_offset = 0x00000000UL
44 };
45
46 static char ioremap_failed[] __initdata = "Could not ioremap I/O port range";
47
pmc_yosemite_setup(void)48 static int __init pmc_yosemite_setup(void)
49 {
50 unsigned long io_v_base;
51
52 io_v_base = (unsigned long) ioremap(TITAN_IO_BASE, TITAN_IO_SIZE);
53 if (!io_v_base)
54 panic(ioremap_failed);
55
56 set_io_port_base(io_v_base);
57 py_controller.io_map_base = io_v_base;
58 TITAN_WRITE(RM9000x2_OCD_LKM7, TITAN_READ(RM9000x2_OCD_LKM7) | 1);
59
60 ioport_resource.end = TITAN_IO_SIZE - 1;
61
62 register_pci_controller(&py_controller);
63
64 return 0;
65 }
66
67 arch_initcall(pmc_yosemite_setup);
68