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ARM: OMAP: Sync core code with linux-omap
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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
31 /*
32  * The machine specific code may provide the extra mapping besides the
33  * default mapping provided here.
34  */
35 static struct map_desc omap2_io_desc[] __initdata = {
36         {
37                 .virtual        = L3_24XX_VIRT,
38                 .pfn            = __phys_to_pfn(L3_24XX_PHYS),
39                 .length         = L3_24XX_SIZE,
40                 .type           = MT_DEVICE
41         },
42         {
43                 .virtual        = DSP_MEM_24XX_VIRT,
44                 .pfn            = __phys_to_pfn(DSP_MEM_24XX_PHYS),
45                 .length         = DSP_MEM_24XX_SIZE,
46                 .type           = MT_DEVICE
47         },
48         {
49                 .virtual        = DSP_IPI_24XX_VIRT,
50                 .pfn            = __phys_to_pfn(DSP_IPI_24XX_PHYS),
51                 .length         = DSP_IPI_24XX_SIZE,
52                 .type           = MT_DEVICE
53         },
54         {
55                 .virtual        = DSP_MMU_24XX_VIRT,
56                 .pfn            = __phys_to_pfn(DSP_MMU_24XX_PHYS),
57                 .length         = DSP_MMU_24XX_SIZE,
58                 .type           = MT_DEVICE
59         }
60 };
61
62 void __init omap2_map_common_io(void)
63 {
64         iotable_init(omap2_io_desc, ARRAY_SIZE(omap2_io_desc));
65
66         /* Normally devicemaps_init() would flush caches and tlb after
67          * mdesc->map_io(), but we must also do it here because of the CPU
68          * revision check below.
69          */
70         local_flush_tlb_all();
71         flush_cache_all();
72
73         omap2_check_revision();
74         omap_sram_init();
75         omapfb_reserve_mem();
76 }
77
78 void __init omap2_init_common_hw(void)
79 {
80         omap2_mux_init();
81         omap2_clk_init();
82         gpmc_init();
83 }