Merge /pub/scm/linux/kernel/git/torvalds/linux-2.6
[linux-2.6] / arch / arm / mach-omap2 / io.c
1 /*
2  * linux/arch/arm/mach-omap2/io.c
3  *
4  * OMAP2 I/O mapping code
5  *
6  * Copyright (C) 2005 Nokia Corporation
7  * Author: Juha Yrjölä <juha.yrjola@nokia.com>
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License version 2 as
11  * published by the Free Software Foundation.
12  */
13
14 #include <linux/module.h>
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17
18 #include <asm/tlb.h>
19 #include <asm/io.h>
20
21 #include <asm/mach/map.h>
22
23 #include <asm/arch/mux.h>
24 #include <asm/arch/omapfb.h>
25
26 extern void omap_sram_init(void);
27 extern int omap2_clk_init(void);
28 extern void omap2_check_revision(void);
29 extern void gpmc_init(void);
30 extern void omapfb_reserve_sdram(void);
31
32 /*
33  * The machine specific code may provide the extra mapping besides the
34  * default mapping provided here.
35  */
36 static struct map_desc omap2_io_desc[] __initdata = {
37         {
38                 .virtual        = L3_24XX_VIRT,
39                 .pfn            = __phys_to_pfn(L3_24XX_PHYS),
40                 .length         = L3_24XX_SIZE,
41                 .type           = MT_DEVICE
42         },
43         {
44                 .virtual        = DSP_MEM_24XX_VIRT,
45                 .pfn            = __phys_to_pfn(DSP_MEM_24XX_PHYS),
46                 .length         = DSP_MEM_24XX_SIZE,
47                 .type           = MT_DEVICE
48         },
49         {
50                 .virtual        = DSP_IPI_24XX_VIRT,
51                 .pfn            = __phys_to_pfn(DSP_IPI_24XX_PHYS),
52                 .length         = DSP_IPI_24XX_SIZE,
53                 .type           = MT_DEVICE
54         },
55         {
56                 .virtual        = DSP_MMU_24XX_VIRT,
57                 .pfn            = __phys_to_pfn(DSP_MMU_24XX_PHYS),
58                 .length         = DSP_MMU_24XX_SIZE,
59                 .type           = MT_DEVICE
60         }
61 };
62
63 void __init omap2_map_common_io(void)
64 {
65         iotable_init(omap2_io_desc, ARRAY_SIZE(omap2_io_desc));
66
67         /* Normally devicemaps_init() would flush caches and tlb after
68          * mdesc->map_io(), but we must also do it here because of the CPU
69          * revision check below.
70          */
71         local_flush_tlb_all();
72         flush_cache_all();
73
74         omap2_check_revision();
75         omap_sram_init();
76         omapfb_reserve_sdram();
77 }
78
79 void __init omap2_init_common_hw(void)
80 {
81         omap2_mux_init();
82         omap2_clk_init();
83         gpmc_init();
84 }