blob: 47787ff84a6ad19f9fd9ab455e9cc4d1762bdbfd [file] [log] [blame]
Kevin Hilman7c6337e2007-04-30 19:37:19 +01001/*
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>
Vladimir Barinov3e062b02007-06-05 16:36:55 +010020#include <asm/arch/clock.h>
Kevin Hilman7c6337e2007-04-30 19:37:19 +010021
22extern void davinci_check_revision(void);
23
24/*
25 * The machine specific code may provide the extra mapping besides the
26 * default mapping provided here.
27 */
28static struct map_desc davinci_io_desc[] __initdata = {
29 {
30 .virtual = IO_VIRT,
31 .pfn = __phys_to_pfn(IO_PHYS),
32 .length = IO_SIZE,
33 .type = MT_DEVICE
34 },
35};
36
37void __init davinci_map_common_io(void)
38{
39 iotable_init(davinci_io_desc, ARRAY_SIZE(davinci_io_desc));
40
41 /* Normally devicemaps_init() would flush caches and tlb after
42 * mdesc->map_io(), but we must also do it here because of the CPU
43 * revision check below.
44 */
45 local_flush_tlb_all();
46 flush_cache_all();
47
48 /* We want to check CPU revision early for cpu_is_xxxx() macros.
49 * IO space mapping must be initialized before we can do that.
50 */
51 davinci_check_revision();
52}
Vladimir Barinov3e062b02007-06-05 16:36:55 +010053
54void __init davinci_init_common_hw(void)
55{
56 davinci_clk_init();
57}