1/*
2 * DaVinci I/O mapping code
3 *
4 * Copyright (C) 2005-2006 Texas Instruments
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11#include <linux/module.h>
12#include <linux/kernel.h>
13#include <linux/init.h>
14
15#include <asm/tlb.h>
16#include <asm/io.h>
17#include <asm/memory.h>
18
19#include <asm/mach/map.h>
20
21extern void davinci_check_revision(void);
22
23/*
24 * The machine specific code may provide the extra mapping besides the
25 * default mapping provided here.
26 */
27static struct map_desc davinci_io_desc[] __initdata = {
28	{
29		.virtual	= IO_VIRT,
30		.pfn		= __phys_to_pfn(IO_PHYS),
31		.length		= IO_SIZE,
32		.type		= MT_DEVICE
33	},
34};
35
36void __init davinci_map_common_io(void)
37{
38	iotable_init(davinci_io_desc, ARRAY_SIZE(davinci_io_desc));
39
40	/* Normally devicemaps_init() would flush caches and tlb after
41	 * mdesc->map_io(), but we must also do it here because of the CPU
42	 * revision check below.
43	 */
44	local_flush_tlb_all();
45	flush_cache_all();
46
47	/* We want to check CPU revision early for cpu_is_xxxx() macros.
48	 * IO space mapping must be initialized before we can do that.
49	 */
50	davinci_check_revision();
51}
52