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  • only in /asuswrt-rt-n18u-9.0.0.4.380.2695/release/src-rt-6.x.4708/linux/linux-2.6/arch/mips/wrppmc/
1/*
2 * pci.c: GT64120 PCI support.
3 *
4 * Copyright (C) 2006, Wind River System Inc. Rongkai.Zhan <rongkai.zhan@windriver.com>
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License.  See the file "COPYING" in the main directory of this archive
8 * for more details.
9 */
10#include <linux/init.h>
11#include <linux/ioport.h>
12#include <linux/types.h>
13#include <linux/pci.h>
14
15#include <asm/gt64120.h>
16
17extern struct pci_ops gt64xxx_pci0_ops;
18
19static struct resource pci0_io_resource = {
20	.name  = "pci_0 io",
21	.start = GT_PCI_IO_BASE,
22	.end   = GT_PCI_IO_BASE + GT_PCI_IO_SIZE - 1,
23	.flags = IORESOURCE_IO,
24};
25
26static struct resource pci0_mem_resource = {
27	.name  = "pci_0 memory",
28	.start = GT_PCI_MEM_BASE,
29	.end   = GT_PCI_MEM_BASE + GT_PCI_MEM_SIZE - 1,
30	.flags = IORESOURCE_MEM,
31};
32
33static struct pci_controller hose_0 = {
34	.pci_ops	= &gt64xxx_pci0_ops,
35	.io_resource	= &pci0_io_resource,
36	.mem_resource	= &pci0_mem_resource,
37};
38
39static int __init gt64120_pci_init(void)
40{
41	u32 tmp;
42
43	tmp = GT_READ(GT_PCI0_CMD_OFS);		/* Huh??? -- Ralf  */
44	tmp = GT_READ(GT_PCI0_BARE_OFS);
45
46	/* reset the whole PCI I/O space range */
47	ioport_resource.start = GT_PCI_IO_BASE;
48	ioport_resource.end = GT_PCI_IO_BASE + GT_PCI_IO_SIZE - 1;
49
50	register_pci_controller(&hose_0);
51	return 0;
52}
53
54arch_initcall(gt64120_pci_init);
55