32afd944821625b4d49b9654573a9b72719c0430
[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) 2007-2009 Texas Instruments
8  *
9  * Author:
10  *      Juha Yrjola <juha.yrjola@nokia.com>
11  *      Syed Khasim <x0khasim@ti.com>
12  *
13  * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>
14  *
15  * This program is free software; you can redistribute it and/or modify
16  * it under the terms of the GNU General Public License version 2 as
17  * published by the Free Software Foundation.
18  */
19
20 #include <linux/module.h>
21 #include <linux/kernel.h>
22 #include <linux/init.h>
23 #include <linux/io.h>
24
25 #include <asm/tlb.h>
26
27 #include <asm/mach/map.h>
28
29 #include <mach/mux.h>
30 #include <mach/omapfb.h>
31 #include <mach/sram.h>
32 #include <mach/sdrc.h>
33 #include <mach/gpmc.h>
34
35 #ifndef CONFIG_ARCH_OMAP4       /* FIXME: Remove this once clkdev is ready */
36 #include "clock.h"
37
38 #include <mach/powerdomain.h>
39
40 #include "powerdomains.h"
41
42 #include <mach/clockdomain.h>
43 #include "clockdomains.h"
44 #endif
45 /*
46  * The machine specific code may provide the extra mapping besides the
47  * default mapping provided here.
48  */
49
50 #ifdef CONFIG_ARCH_OMAP24XX
51 static struct map_desc omap24xx_io_desc[] __initdata = {
52         {
53                 .virtual        = L3_24XX_VIRT,
54                 .pfn            = __phys_to_pfn(L3_24XX_PHYS),
55                 .length         = L3_24XX_SIZE,
56                 .type           = MT_DEVICE
57         },
58         {
59                 .virtual        = L4_24XX_VIRT,
60                 .pfn            = __phys_to_pfn(L4_24XX_PHYS),
61                 .length         = L4_24XX_SIZE,
62                 .type           = MT_DEVICE
63         },
64 };
65
66 #ifdef CONFIG_ARCH_OMAP2420
67 static struct map_desc omap242x_io_desc[] __initdata = {
68         {
69                 .virtual        = DSP_MEM_24XX_VIRT,
70                 .pfn            = __phys_to_pfn(DSP_MEM_24XX_PHYS),
71                 .length         = DSP_MEM_24XX_SIZE,
72                 .type           = MT_DEVICE
73         },
74         {
75                 .virtual        = DSP_IPI_24XX_VIRT,
76                 .pfn            = __phys_to_pfn(DSP_IPI_24XX_PHYS),
77                 .length         = DSP_IPI_24XX_SIZE,
78                 .type           = MT_DEVICE
79         },
80         {
81                 .virtual        = DSP_MMU_24XX_VIRT,
82                 .pfn            = __phys_to_pfn(DSP_MMU_24XX_PHYS),
83                 .length         = DSP_MMU_24XX_SIZE,
84                 .type           = MT_DEVICE
85         },
86 };
87
88 #endif
89
90 #ifdef CONFIG_ARCH_OMAP2430
91 static struct map_desc omap243x_io_desc[] __initdata = {
92         {
93                 .virtual        = L4_WK_243X_VIRT,
94                 .pfn            = __phys_to_pfn(L4_WK_243X_PHYS),
95                 .length         = L4_WK_243X_SIZE,
96                 .type           = MT_DEVICE
97         },
98         {
99                 .virtual        = OMAP243X_GPMC_VIRT,
100                 .pfn            = __phys_to_pfn(OMAP243X_GPMC_PHYS),
101                 .length         = OMAP243X_GPMC_SIZE,
102                 .type           = MT_DEVICE
103         },
104         {
105                 .virtual        = OMAP243X_SDRC_VIRT,
106                 .pfn            = __phys_to_pfn(OMAP243X_SDRC_PHYS),
107                 .length         = OMAP243X_SDRC_SIZE,
108                 .type           = MT_DEVICE
109         },
110         {
111                 .virtual        = OMAP243X_SMS_VIRT,
112                 .pfn            = __phys_to_pfn(OMAP243X_SMS_PHYS),
113                 .length         = OMAP243X_SMS_SIZE,
114                 .type           = MT_DEVICE
115         },
116 };
117 #endif
118 #endif
119
120 #ifdef  CONFIG_ARCH_OMAP34XX
121 static struct map_desc omap34xx_io_desc[] __initdata = {
122         {
123                 .virtual        = L3_34XX_VIRT,
124                 .pfn            = __phys_to_pfn(L3_34XX_PHYS),
125                 .length         = L3_34XX_SIZE,
126                 .type           = MT_DEVICE
127         },
128         {
129                 .virtual        = L4_34XX_VIRT,
130                 .pfn            = __phys_to_pfn(L4_34XX_PHYS),
131                 .length         = L4_34XX_SIZE,
132                 .type           = MT_DEVICE
133         },
134         {
135                 .virtual        = L4_WK_34XX_VIRT,
136                 .pfn            = __phys_to_pfn(L4_WK_34XX_PHYS),
137                 .length         = L4_WK_34XX_SIZE,
138                 .type           = MT_DEVICE
139         },
140         {
141                 .virtual        = OMAP34XX_GPMC_VIRT,
142                 .pfn            = __phys_to_pfn(OMAP34XX_GPMC_PHYS),
143                 .length         = OMAP34XX_GPMC_SIZE,
144                 .type           = MT_DEVICE
145         },
146         {
147                 .virtual        = OMAP343X_SMS_VIRT,
148                 .pfn            = __phys_to_pfn(OMAP343X_SMS_PHYS),
149                 .length         = OMAP343X_SMS_SIZE,
150                 .type           = MT_DEVICE
151         },
152         {
153                 .virtual        = OMAP343X_SDRC_VIRT,
154                 .pfn            = __phys_to_pfn(OMAP343X_SDRC_PHYS),
155                 .length         = OMAP343X_SDRC_SIZE,
156                 .type           = MT_DEVICE
157         },
158         {
159                 .virtual        = L4_PER_34XX_VIRT,
160                 .pfn            = __phys_to_pfn(L4_PER_34XX_PHYS),
161                 .length         = L4_PER_34XX_SIZE,
162                 .type           = MT_DEVICE
163         },
164         {
165                 .virtual        = L4_EMU_34XX_VIRT,
166                 .pfn            = __phys_to_pfn(L4_EMU_34XX_PHYS),
167                 .length         = L4_EMU_34XX_SIZE,
168                 .type           = MT_DEVICE
169         },
170 };
171 #endif
172 #ifdef  CONFIG_ARCH_OMAP4
173 static struct map_desc omap44xx_io_desc[] __initdata = {
174         {
175                 .virtual        = L3_44XX_VIRT,
176                 .pfn            = __phys_to_pfn(L3_44XX_PHYS),
177                 .length         = L3_44XX_SIZE,
178                 .type           = MT_DEVICE,
179         },
180         {
181                 .virtual        = L4_44XX_VIRT,
182                 .pfn            = __phys_to_pfn(L4_44XX_PHYS),
183                 .length         = L4_44XX_SIZE,
184                 .type           = MT_DEVICE,
185         },
186         {
187                 .virtual        = L4_WK_44XX_VIRT,
188                 .pfn            = __phys_to_pfn(L4_WK_44XX_PHYS),
189                 .length         = L4_WK_44XX_SIZE,
190                 .type           = MT_DEVICE,
191         },
192         {
193                 .virtual        = OMAP44XX_GPMC_VIRT,
194                 .pfn            = __phys_to_pfn(OMAP44XX_GPMC_PHYS),
195                 .length         = OMAP44XX_GPMC_SIZE,
196                 .type           = MT_DEVICE,
197         },
198         {
199                 .virtual        = L4_PER_44XX_VIRT,
200                 .pfn            = __phys_to_pfn(L4_PER_44XX_PHYS),
201                 .length         = L4_PER_44XX_SIZE,
202                 .type           = MT_DEVICE,
203         },
204         {
205                 .virtual        = L4_EMU_44XX_VIRT,
206                 .pfn            = __phys_to_pfn(L4_EMU_44XX_PHYS),
207                 .length         = L4_EMU_44XX_SIZE,
208                 .type           = MT_DEVICE,
209         },
210 };
211 #endif
212
213 void __init omap2_map_common_io(void)
214 {
215 #if defined(CONFIG_ARCH_OMAP2420)
216         iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc));
217         iotable_init(omap242x_io_desc, ARRAY_SIZE(omap242x_io_desc));
218 #endif
219
220 #if defined(CONFIG_ARCH_OMAP2430)
221         iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc));
222         iotable_init(omap243x_io_desc, ARRAY_SIZE(omap243x_io_desc));
223 #endif
224
225 #if defined(CONFIG_ARCH_OMAP34XX)
226         iotable_init(omap34xx_io_desc, ARRAY_SIZE(omap34xx_io_desc));
227 #endif
228
229 #if defined(CONFIG_ARCH_OMAP4)
230         iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc));
231 #endif
232         /* Normally devicemaps_init() would flush caches and tlb after
233          * mdesc->map_io(), but we must also do it here because of the CPU
234          * revision check below.
235          */
236         local_flush_tlb_all();
237         flush_cache_all();
238
239         omap2_check_revision();
240         omap_sram_init();
241         omapfb_reserve_sdram();
242 }
243
244 void __init omap2_init_common_hw(struct omap_sdrc_params *sp)
245 {
246         omap2_mux_init();
247 #ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once the clkdev is ready */
248         pwrdm_init(powerdomains_omap);
249         clkdm_init(clockdomains_omap, clkdm_pwrdm_autodeps);
250         omap2_clk_init();
251         omap2_sdrc_init(sp);
252 #endif
253         gpmc_init();
254 }