ARM: OMAP2: Misc updates from linux-omap tree
[linux-3.10.git] / 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  * Copyright (C) 2007 Texas Instruments
8  *
9  * Author:
10  *      Juha Yrjola <juha.yrjola@nokia.com>
11  *      Syed Khasim <x0khasim@ti.com>
12  *
13  * This program is free software; you can redistribute it and/or modify
14  * it under the terms of the GNU General Public License version 2 as
15  * published by the Free Software Foundation.
16  */
17
18 #include <linux/module.h>
19 #include <linux/kernel.h>
20 #include <linux/init.h>
21
22 #include <asm/tlb.h>
23 #include <asm/io.h>
24
25 #include <asm/mach/map.h>
26
27 #include <mach/mux.h>
28 #include <mach/omapfb.h>
29 #include <mach/sram.h>
30
31 #include "memory.h"
32
33 #include "clock.h"
34
35 #include <mach/powerdomain.h>
36
37 #include "powerdomains.h"
38
39 #include <mach/clockdomain.h>
40 #include "clockdomains.h"
41
42 /*
43  * The machine specific code may provide the extra mapping besides the
44  * default mapping provided here.
45  */
46 static struct map_desc omap2_io_desc[] __initdata = {
47         {
48                 .virtual        = L3_24XX_VIRT,
49                 .pfn            = __phys_to_pfn(L3_24XX_PHYS),
50                 .length         = L3_24XX_SIZE,
51                 .type           = MT_DEVICE
52         },
53         {
54                 .virtual        = L4_24XX_VIRT,
55                 .pfn            = __phys_to_pfn(L4_24XX_PHYS),
56                 .length         = L4_24XX_SIZE,
57                 .type           = MT_DEVICE
58         },
59 #ifdef CONFIG_ARCH_OMAP2430
60         {
61                 .virtual        = L4_WK_243X_VIRT,
62                 .pfn            = __phys_to_pfn(L4_WK_243X_PHYS),
63                 .length         = L4_WK_243X_SIZE,
64                 .type           = MT_DEVICE
65         },
66         {
67                 .virtual        = OMAP243X_GPMC_VIRT,
68                 .pfn            = __phys_to_pfn(OMAP243X_GPMC_PHYS),
69                 .length         = OMAP243X_GPMC_SIZE,
70                 .type           = MT_DEVICE
71         },
72 #endif
73         {
74                 .virtual        = DSP_MEM_24XX_VIRT,
75                 .pfn            = __phys_to_pfn(DSP_MEM_24XX_PHYS),
76                 .length         = DSP_MEM_24XX_SIZE,
77                 .type           = MT_DEVICE
78         },
79         {
80                 .virtual        = DSP_IPI_24XX_VIRT,
81                 .pfn            = __phys_to_pfn(DSP_IPI_24XX_PHYS),
82                 .length         = DSP_IPI_24XX_SIZE,
83                 .type           = MT_DEVICE
84         },
85         {
86                 .virtual        = DSP_MMU_24XX_VIRT,
87                 .pfn            = __phys_to_pfn(DSP_MMU_24XX_PHYS),
88                 .length         = DSP_MMU_24XX_SIZE,
89                 .type           = MT_DEVICE
90         }
91 };
92
93 void __init omap2_map_common_io(void)
94 {
95         iotable_init(omap2_io_desc, ARRAY_SIZE(omap2_io_desc));
96
97         /* Normally devicemaps_init() would flush caches and tlb after
98          * mdesc->map_io(), but we must also do it here because of the CPU
99          * revision check below.
100          */
101         local_flush_tlb_all();
102         flush_cache_all();
103
104         omap2_check_revision();
105         omap_sram_init();
106         omapfb_reserve_sdram();
107 }
108
109 void __init omap2_init_common_hw(void)
110 {
111         omap2_mux_init();
112         pwrdm_init(powerdomains_omap);
113         clkdm_init(clockdomains_omap, clkdm_pwrdm_autodeps);
114         omap2_clk_init();
115 /*
116  * Need to Fix this for 2430
117  */
118 #ifndef CONFIG_ARCH_OMAP2430
119         omap2_init_memory();
120 #endif
121         gpmc_init();
122 }