Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 1 | /* |
| 2 | * linux/arch/arm/mach-omap2/io.c |
| 3 | * |
| 4 | * OMAP2 I/O mapping code |
| 5 | * |
| 6 | * Copyright (C) 2005 Nokia Corporation |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 7 | * Copyright (C) 2007-2009 Texas Instruments |
Tony Lindgren | 646e3ed | 2008-10-06 15:49:36 +0300 | [diff] [blame] | 8 | * |
| 9 | * Author: |
| 10 | * Juha Yrjola <juha.yrjola@nokia.com> |
| 11 | * Syed Khasim <x0khasim@ti.com> |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 12 | * |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 13 | * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com> |
| 14 | * |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 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 | */ |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 19 | #include <linux/module.h> |
| 20 | #include <linux/kernel.h> |
| 21 | #include <linux/init.h> |
Russell King | fced80c | 2008-09-06 12:10:45 +0100 | [diff] [blame] | 22 | #include <linux/io.h> |
Paul Walmsley | 2f135ea | 2009-06-19 19:08:25 -0600 | [diff] [blame] | 23 | #include <linux/clk.h> |
Tomi Valkeinen | 91773a0 | 2009-08-03 15:06:36 +0300 | [diff] [blame] | 24 | #include <linux/omapfb.h> |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 25 | |
Tony Lindgren | 120db2c | 2006-04-02 17:46:27 +0100 | [diff] [blame] | 26 | #include <asm/tlb.h> |
Tony Lindgren | 120db2c | 2006-04-02 17:46:27 +0100 | [diff] [blame] | 27 | |
| 28 | #include <asm/mach/map.h> |
| 29 | |
Tony Lindgren | ce491cf | 2009-10-20 09:40:47 -0700 | [diff] [blame] | 30 | #include <plat/sram.h> |
| 31 | #include <plat/sdrc.h> |
Tony Lindgren | ce491cf | 2009-10-20 09:40:47 -0700 | [diff] [blame] | 32 | #include <plat/serial.h> |
Tony Lindgren | 646e3ed | 2008-10-06 15:49:36 +0300 | [diff] [blame] | 33 | |
Paul Walmsley | e80a972 | 2010-01-26 20:13:12 -0700 | [diff] [blame] | 34 | #include "clock2xxx.h" |
Paul Walmsley | 657ebfa | 2010-02-22 22:09:20 -0700 | [diff] [blame] | 35 | #include "clock3xxx.h" |
Paul Walmsley | e80a972 | 2010-01-26 20:13:12 -0700 | [diff] [blame] | 36 | #include "clock44xx.h" |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 37 | |
Tony Lindgren | 4e65331 | 2011-11-10 22:45:17 +0100 | [diff] [blame] | 38 | #include "common.h" |
Tony Lindgren | ce491cf | 2009-10-20 09:40:47 -0700 | [diff] [blame] | 39 | #include <plat/omap-pm.h> |
Kevin Hilman | 81a6048 | 2011-03-16 14:25:45 -0700 | [diff] [blame] | 40 | #include "voltage.h" |
Paul Walmsley | 72e06d0 | 2010-12-21 21:05:16 -0700 | [diff] [blame] | 41 | #include "powerdomain.h" |
Paul Walmsley | 9717100 | 2008-08-19 11:08:40 +0300 | [diff] [blame] | 42 | |
Paul Walmsley | 1540f214 | 2010-12-21 21:05:15 -0700 | [diff] [blame] | 43 | #include "clockdomain.h" |
Tony Lindgren | ce491cf | 2009-10-20 09:40:47 -0700 | [diff] [blame] | 44 | #include <plat/omap_hwmod.h> |
Tony Lindgren | 5d190c4 | 2010-12-09 15:49:23 -0800 | [diff] [blame] | 45 | #include <plat/multi.h> |
Tony Lindgren | 4e65331 | 2011-11-10 22:45:17 +0100 | [diff] [blame] | 46 | #include "common.h" |
Paul Walmsley | 02bfc03 | 2009-09-03 20:14:05 +0300 | [diff] [blame] | 47 | |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 48 | /* |
| 49 | * The machine specific code may provide the extra mapping besides the |
| 50 | * default mapping provided here. |
| 51 | */ |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 52 | |
Tony Lindgren | 088ef95 | 2010-02-12 12:26:47 -0800 | [diff] [blame] | 53 | #ifdef CONFIG_ARCH_OMAP2 |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 54 | static struct map_desc omap24xx_io_desc[] __initdata = { |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 55 | { |
| 56 | .virtual = L3_24XX_VIRT, |
| 57 | .pfn = __phys_to_pfn(L3_24XX_PHYS), |
| 58 | .length = L3_24XX_SIZE, |
| 59 | .type = MT_DEVICE |
| 60 | }, |
Kyungmin Park | 09f21ed | 2008-02-20 15:30:06 -0800 | [diff] [blame] | 61 | { |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 62 | .virtual = L4_24XX_VIRT, |
| 63 | .pfn = __phys_to_pfn(L4_24XX_PHYS), |
| 64 | .length = L4_24XX_SIZE, |
Syed Mohammed Khasim | 72d0f1c | 2006-12-06 17:14:05 -0800 | [diff] [blame] | 65 | .type = MT_DEVICE |
| 66 | }, |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 67 | }; |
| 68 | |
Tony Lindgren | 59b479e | 2011-01-27 16:39:40 -0800 | [diff] [blame] | 69 | #ifdef CONFIG_SOC_OMAP2420 |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 70 | static struct map_desc omap242x_io_desc[] __initdata = { |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 71 | { |
Paul Walmsley | 7adb998 | 2010-01-08 15:23:05 -0700 | [diff] [blame] | 72 | .virtual = DSP_MEM_2420_VIRT, |
| 73 | .pfn = __phys_to_pfn(DSP_MEM_2420_PHYS), |
| 74 | .length = DSP_MEM_2420_SIZE, |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 75 | .type = MT_DEVICE |
| 76 | }, |
| 77 | { |
Paul Walmsley | 7adb998 | 2010-01-08 15:23:05 -0700 | [diff] [blame] | 78 | .virtual = DSP_IPI_2420_VIRT, |
| 79 | .pfn = __phys_to_pfn(DSP_IPI_2420_PHYS), |
| 80 | .length = DSP_IPI_2420_SIZE, |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 81 | .type = MT_DEVICE |
| 82 | }, |
| 83 | { |
Paul Walmsley | 7adb998 | 2010-01-08 15:23:05 -0700 | [diff] [blame] | 84 | .virtual = DSP_MMU_2420_VIRT, |
| 85 | .pfn = __phys_to_pfn(DSP_MMU_2420_PHYS), |
| 86 | .length = DSP_MMU_2420_SIZE, |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 87 | .type = MT_DEVICE |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 88 | }, |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 89 | }; |
| 90 | |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 91 | #endif |
| 92 | |
Tony Lindgren | 59b479e | 2011-01-27 16:39:40 -0800 | [diff] [blame] | 93 | #ifdef CONFIG_SOC_OMAP2430 |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 94 | static struct map_desc omap243x_io_desc[] __initdata = { |
| 95 | { |
| 96 | .virtual = L4_WK_243X_VIRT, |
| 97 | .pfn = __phys_to_pfn(L4_WK_243X_PHYS), |
| 98 | .length = L4_WK_243X_SIZE, |
| 99 | .type = MT_DEVICE |
| 100 | }, |
| 101 | { |
| 102 | .virtual = OMAP243X_GPMC_VIRT, |
| 103 | .pfn = __phys_to_pfn(OMAP243X_GPMC_PHYS), |
| 104 | .length = OMAP243X_GPMC_SIZE, |
| 105 | .type = MT_DEVICE |
| 106 | }, |
| 107 | { |
| 108 | .virtual = OMAP243X_SDRC_VIRT, |
| 109 | .pfn = __phys_to_pfn(OMAP243X_SDRC_PHYS), |
| 110 | .length = OMAP243X_SDRC_SIZE, |
| 111 | .type = MT_DEVICE |
| 112 | }, |
| 113 | { |
| 114 | .virtual = OMAP243X_SMS_VIRT, |
| 115 | .pfn = __phys_to_pfn(OMAP243X_SMS_PHYS), |
| 116 | .length = OMAP243X_SMS_SIZE, |
| 117 | .type = MT_DEVICE |
| 118 | }, |
| 119 | }; |
| 120 | #endif |
| 121 | #endif |
| 122 | |
Tony Lindgren | a8eb7ca | 2010-02-12 12:26:48 -0800 | [diff] [blame] | 123 | #ifdef CONFIG_ARCH_OMAP3 |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 124 | static struct map_desc omap34xx_io_desc[] __initdata = { |
| 125 | { |
| 126 | .virtual = L3_34XX_VIRT, |
| 127 | .pfn = __phys_to_pfn(L3_34XX_PHYS), |
| 128 | .length = L3_34XX_SIZE, |
| 129 | .type = MT_DEVICE |
| 130 | }, |
| 131 | { |
| 132 | .virtual = L4_34XX_VIRT, |
| 133 | .pfn = __phys_to_pfn(L4_34XX_PHYS), |
| 134 | .length = L4_34XX_SIZE, |
| 135 | .type = MT_DEVICE |
| 136 | }, |
| 137 | { |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 138 | .virtual = OMAP34XX_GPMC_VIRT, |
| 139 | .pfn = __phys_to_pfn(OMAP34XX_GPMC_PHYS), |
| 140 | .length = OMAP34XX_GPMC_SIZE, |
| 141 | .type = MT_DEVICE |
| 142 | }, |
| 143 | { |
| 144 | .virtual = OMAP343X_SMS_VIRT, |
| 145 | .pfn = __phys_to_pfn(OMAP343X_SMS_PHYS), |
| 146 | .length = OMAP343X_SMS_SIZE, |
| 147 | .type = MT_DEVICE |
| 148 | }, |
| 149 | { |
| 150 | .virtual = OMAP343X_SDRC_VIRT, |
| 151 | .pfn = __phys_to_pfn(OMAP343X_SDRC_PHYS), |
| 152 | .length = OMAP343X_SDRC_SIZE, |
| 153 | .type = MT_DEVICE |
| 154 | }, |
| 155 | { |
| 156 | .virtual = L4_PER_34XX_VIRT, |
| 157 | .pfn = __phys_to_pfn(L4_PER_34XX_PHYS), |
| 158 | .length = L4_PER_34XX_SIZE, |
| 159 | .type = MT_DEVICE |
| 160 | }, |
| 161 | { |
| 162 | .virtual = L4_EMU_34XX_VIRT, |
| 163 | .pfn = __phys_to_pfn(L4_EMU_34XX_PHYS), |
| 164 | .length = L4_EMU_34XX_SIZE, |
| 165 | .type = MT_DEVICE |
| 166 | }, |
Tony Lindgren | a4f57b8 | 2010-04-30 12:57:14 -0700 | [diff] [blame] | 167 | #if defined(CONFIG_DEBUG_LL) && \ |
| 168 | (defined(CONFIG_MACH_OMAP_ZOOM2) || defined(CONFIG_MACH_OMAP_ZOOM3)) |
| 169 | { |
| 170 | .virtual = ZOOM_UART_VIRT, |
| 171 | .pfn = __phys_to_pfn(ZOOM_UART_BASE), |
| 172 | .length = SZ_1M, |
| 173 | .type = MT_DEVICE |
| 174 | }, |
| 175 | #endif |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 176 | }; |
| 177 | #endif |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 178 | |
Hemant Pedanekar | a920360 | 2011-12-13 10:46:44 -0800 | [diff] [blame] | 179 | #ifdef CONFIG_SOC_OMAPTI81XX |
| 180 | static struct map_desc omapti81xx_io_desc[] __initdata = { |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 181 | { |
| 182 | .virtual = L4_34XX_VIRT, |
| 183 | .pfn = __phys_to_pfn(L4_34XX_PHYS), |
| 184 | .length = L4_34XX_SIZE, |
| 185 | .type = MT_DEVICE |
Afzal Mohammed | 1e6cb14 | 2011-12-13 10:46:43 -0800 | [diff] [blame] | 186 | } |
| 187 | }; |
| 188 | #endif |
| 189 | |
| 190 | #ifdef CONFIG_SOC_OMAPAM33XX |
| 191 | static struct map_desc omapam33xx_io_desc[] __initdata = { |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 192 | { |
| 193 | .virtual = L4_34XX_VIRT, |
| 194 | .pfn = __phys_to_pfn(L4_34XX_PHYS), |
| 195 | .length = L4_34XX_SIZE, |
| 196 | .type = MT_DEVICE |
| 197 | }, |
Afzal Mohammed | 1e6cb14 | 2011-12-13 10:46:43 -0800 | [diff] [blame] | 198 | { |
| 199 | .virtual = L4_WK_AM33XX_VIRT, |
| 200 | .pfn = __phys_to_pfn(L4_WK_AM33XX_PHYS), |
| 201 | .length = L4_WK_AM33XX_SIZE, |
| 202 | .type = MT_DEVICE |
| 203 | } |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 204 | }; |
| 205 | #endif |
| 206 | |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 207 | #ifdef CONFIG_ARCH_OMAP4 |
| 208 | static struct map_desc omap44xx_io_desc[] __initdata = { |
| 209 | { |
| 210 | .virtual = L3_44XX_VIRT, |
| 211 | .pfn = __phys_to_pfn(L3_44XX_PHYS), |
| 212 | .length = L3_44XX_SIZE, |
| 213 | .type = MT_DEVICE, |
| 214 | }, |
| 215 | { |
| 216 | .virtual = L4_44XX_VIRT, |
| 217 | .pfn = __phys_to_pfn(L4_44XX_PHYS), |
| 218 | .length = L4_44XX_SIZE, |
| 219 | .type = MT_DEVICE, |
| 220 | }, |
| 221 | { |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 222 | .virtual = OMAP44XX_GPMC_VIRT, |
| 223 | .pfn = __phys_to_pfn(OMAP44XX_GPMC_PHYS), |
| 224 | .length = OMAP44XX_GPMC_SIZE, |
| 225 | .type = MT_DEVICE, |
| 226 | }, |
| 227 | { |
Santosh Shilimkar | f5d2d65 | 2009-10-19 17:25:57 -0700 | [diff] [blame] | 228 | .virtual = OMAP44XX_EMIF1_VIRT, |
| 229 | .pfn = __phys_to_pfn(OMAP44XX_EMIF1_PHYS), |
| 230 | .length = OMAP44XX_EMIF1_SIZE, |
| 231 | .type = MT_DEVICE, |
| 232 | }, |
| 233 | { |
| 234 | .virtual = OMAP44XX_EMIF2_VIRT, |
| 235 | .pfn = __phys_to_pfn(OMAP44XX_EMIF2_PHYS), |
| 236 | .length = OMAP44XX_EMIF2_SIZE, |
| 237 | .type = MT_DEVICE, |
| 238 | }, |
| 239 | { |
| 240 | .virtual = OMAP44XX_DMM_VIRT, |
| 241 | .pfn = __phys_to_pfn(OMAP44XX_DMM_PHYS), |
| 242 | .length = OMAP44XX_DMM_SIZE, |
| 243 | .type = MT_DEVICE, |
| 244 | }, |
| 245 | { |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 246 | .virtual = L4_PER_44XX_VIRT, |
| 247 | .pfn = __phys_to_pfn(L4_PER_44XX_PHYS), |
| 248 | .length = L4_PER_44XX_SIZE, |
| 249 | .type = MT_DEVICE, |
| 250 | }, |
| 251 | { |
| 252 | .virtual = L4_EMU_44XX_VIRT, |
| 253 | .pfn = __phys_to_pfn(L4_EMU_44XX_PHYS), |
| 254 | .length = L4_EMU_44XX_SIZE, |
| 255 | .type = MT_DEVICE, |
| 256 | }, |
Santosh Shilimkar | 137d105 | 2011-06-25 18:04:31 -0700 | [diff] [blame] | 257 | #ifdef CONFIG_OMAP4_ERRATA_I688 |
| 258 | { |
| 259 | .virtual = OMAP4_SRAM_VA, |
| 260 | .pfn = __phys_to_pfn(OMAP4_SRAM_PA), |
| 261 | .length = PAGE_SIZE, |
| 262 | .type = MT_MEMORY_SO, |
| 263 | }, |
| 264 | #endif |
| 265 | |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 266 | }; |
| 267 | #endif |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 268 | |
Tony Lindgren | 59b479e | 2011-01-27 16:39:40 -0800 | [diff] [blame] | 269 | #ifdef CONFIG_SOC_OMAP2420 |
Aaro Koskinen | 8185e46 | 2010-03-03 16:24:53 +0000 | [diff] [blame] | 270 | void __init omap242x_map_common_io(void) |
Tony Lindgren | 6fbd55d | 2010-02-12 12:26:47 -0800 | [diff] [blame] | 271 | { |
| 272 | iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc)); |
| 273 | iotable_init(omap242x_io_desc, ARRAY_SIZE(omap242x_io_desc)); |
Tony Lindgren | 6fbd55d | 2010-02-12 12:26:47 -0800 | [diff] [blame] | 274 | } |
| 275 | #endif |
| 276 | |
Tony Lindgren | 59b479e | 2011-01-27 16:39:40 -0800 | [diff] [blame] | 277 | #ifdef CONFIG_SOC_OMAP2430 |
Aaro Koskinen | 8185e46 | 2010-03-03 16:24:53 +0000 | [diff] [blame] | 278 | void __init omap243x_map_common_io(void) |
Tony Lindgren | 6fbd55d | 2010-02-12 12:26:47 -0800 | [diff] [blame] | 279 | { |
| 280 | iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc)); |
| 281 | iotable_init(omap243x_io_desc, ARRAY_SIZE(omap243x_io_desc)); |
Tony Lindgren | 6fbd55d | 2010-02-12 12:26:47 -0800 | [diff] [blame] | 282 | } |
| 283 | #endif |
| 284 | |
Tony Lindgren | a8eb7ca | 2010-02-12 12:26:48 -0800 | [diff] [blame] | 285 | #ifdef CONFIG_ARCH_OMAP3 |
Aaro Koskinen | 8185e46 | 2010-03-03 16:24:53 +0000 | [diff] [blame] | 286 | void __init omap34xx_map_common_io(void) |
Tony Lindgren | 6fbd55d | 2010-02-12 12:26:47 -0800 | [diff] [blame] | 287 | { |
| 288 | iotable_init(omap34xx_io_desc, ARRAY_SIZE(omap34xx_io_desc)); |
Tony Lindgren | 6fbd55d | 2010-02-12 12:26:47 -0800 | [diff] [blame] | 289 | } |
| 290 | #endif |
| 291 | |
Hemant Pedanekar | a920360 | 2011-12-13 10:46:44 -0800 | [diff] [blame] | 292 | #ifdef CONFIG_SOC_OMAPTI81XX |
| 293 | void __init omapti81xx_map_common_io(void) |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 294 | { |
Hemant Pedanekar | a920360 | 2011-12-13 10:46:44 -0800 | [diff] [blame] | 295 | iotable_init(omapti81xx_io_desc, ARRAY_SIZE(omapti81xx_io_desc)); |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 296 | } |
| 297 | #endif |
| 298 | |
Afzal Mohammed | 1e6cb14 | 2011-12-13 10:46:43 -0800 | [diff] [blame] | 299 | #ifdef CONFIG_SOC_OMAPAM33XX |
| 300 | void __init omapam33xx_map_common_io(void) |
| 301 | { |
| 302 | iotable_init(omapam33xx_io_desc, ARRAY_SIZE(omapam33xx_io_desc)); |
Tony Lindgren | 6fbd55d | 2010-02-12 12:26:47 -0800 | [diff] [blame] | 303 | } |
| 304 | #endif |
| 305 | |
| 306 | #ifdef CONFIG_ARCH_OMAP4 |
Aaro Koskinen | 8185e46 | 2010-03-03 16:24:53 +0000 | [diff] [blame] | 307 | void __init omap44xx_map_common_io(void) |
Tony Lindgren | 6fbd55d | 2010-02-12 12:26:47 -0800 | [diff] [blame] | 308 | { |
| 309 | iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc)); |
Tony Lindgren | 6fbd55d | 2010-02-12 12:26:47 -0800 | [diff] [blame] | 310 | } |
| 311 | #endif |
| 312 | |
Paul Walmsley | 2f135ea | 2009-06-19 19:08:25 -0600 | [diff] [blame] | 313 | /* |
| 314 | * omap2_init_reprogram_sdrc - reprogram SDRC timing parameters |
| 315 | * |
| 316 | * Sets the CORE DPLL3 M2 divider to the same value that it's at |
| 317 | * currently. This has the effect of setting the SDRC SDRAM AC timing |
| 318 | * registers to the values currently defined by the kernel. Currently |
| 319 | * only defined for OMAP3; will return 0 if called on OMAP2. Returns |
| 320 | * -EINVAL if the dpll3_m2_ck cannot be found, 0 if called on OMAP2, |
| 321 | * or passes along the return value of clk_set_rate(). |
| 322 | */ |
| 323 | static int __init _omap2_init_reprogram_sdrc(void) |
| 324 | { |
| 325 | struct clk *dpll3_m2_ck; |
| 326 | int v = -EINVAL; |
| 327 | long rate; |
| 328 | |
| 329 | if (!cpu_is_omap34xx()) |
| 330 | return 0; |
| 331 | |
| 332 | dpll3_m2_ck = clk_get(NULL, "dpll3_m2_ck"); |
Aaro Koskinen | e281f7e | 2010-11-30 14:17:58 +0000 | [diff] [blame] | 333 | if (IS_ERR(dpll3_m2_ck)) |
Paul Walmsley | 2f135ea | 2009-06-19 19:08:25 -0600 | [diff] [blame] | 334 | return -EINVAL; |
| 335 | |
| 336 | rate = clk_get_rate(dpll3_m2_ck); |
| 337 | pr_info("Reprogramming SDRC clock to %ld Hz\n", rate); |
| 338 | v = clk_set_rate(dpll3_m2_ck, rate); |
| 339 | if (v) |
| 340 | pr_err("dpll3_m2_clk rate change failed: %d\n", v); |
| 341 | |
| 342 | clk_put(dpll3_m2_ck); |
| 343 | |
| 344 | return v; |
| 345 | } |
| 346 | |
Paul Walmsley | 2092e5c | 2010-12-14 12:42:35 -0700 | [diff] [blame] | 347 | static int _set_hwmod_postsetup_state(struct omap_hwmod *oh, void *data) |
| 348 | { |
| 349 | return omap_hwmod_set_postsetup_state(oh, *(u8 *)data); |
| 350 | } |
| 351 | |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 352 | static void __init omap_common_init_early(void) |
| 353 | { |
| 354 | omap2_check_revision(); |
Arnd Bergmann | df80442 | 2011-11-01 13:47:27 +0100 | [diff] [blame] | 355 | omap_init_consistent_dma_size(); |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 356 | } |
| 357 | |
| 358 | static void __init omap_hwmod_init_postsetup(void) |
Tony Lindgren | 120db2c | 2006-04-02 17:46:27 +0100 | [diff] [blame] | 359 | { |
Paul Walmsley | 2092e5c | 2010-12-14 12:42:35 -0700 | [diff] [blame] | 360 | u8 postsetup_state; |
| 361 | |
Paul Walmsley | 2092e5c | 2010-12-14 12:42:35 -0700 | [diff] [blame] | 362 | /* Set the default postsetup state for all hwmods */ |
| 363 | #ifdef CONFIG_PM_RUNTIME |
| 364 | postsetup_state = _HWMOD_STATE_IDLE; |
| 365 | #else |
| 366 | postsetup_state = _HWMOD_STATE_ENABLED; |
| 367 | #endif |
| 368 | omap_hwmod_for_each(_set_hwmod_postsetup_state, &postsetup_state); |
Benoit Cousson | 55d2cb0 | 2010-05-12 17:54:36 +0200 | [diff] [blame] | 369 | |
Paul Walmsley | ff2516f | 2010-12-21 15:39:15 -0700 | [diff] [blame] | 370 | /* |
| 371 | * Set the default postsetup state for unusual modules (like |
| 372 | * MPU WDT). |
| 373 | * |
| 374 | * The postsetup_state is not actually used until |
| 375 | * omap_hwmod_late_init(), so boards that desire full watchdog |
| 376 | * coverage of kernel initialization can reprogram the |
| 377 | * postsetup_state between the calls to |
Tony Lindgren | a4ca9db | 2011-08-22 23:57:23 -0700 | [diff] [blame] | 378 | * omap2_init_common_infra() and omap_sdrc_init(). |
Paul Walmsley | ff2516f | 2010-12-21 15:39:15 -0700 | [diff] [blame] | 379 | * |
| 380 | * XXX ideally we could detect whether the MPU WDT was currently |
| 381 | * enabled here and make this conditional |
| 382 | */ |
| 383 | postsetup_state = _HWMOD_STATE_DISABLED; |
| 384 | omap_hwmod_for_each_by_class("wd_timer", |
| 385 | _set_hwmod_postsetup_state, |
| 386 | &postsetup_state); |
| 387 | |
Kevin Hilman | 53da4ce | 2010-12-09 09:13:48 -0600 | [diff] [blame] | 388 | omap_pm_if_early_init(); |
Paul Walmsley | 4805734 | 2010-12-21 15:25:10 -0700 | [diff] [blame] | 389 | } |
| 390 | |
Sanjeev Premi | c4e2d24 | 2011-10-13 21:44:10 +0530 | [diff] [blame] | 391 | #ifdef CONFIG_ARCH_OMAP2 |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 392 | void __init omap2420_init_early(void) |
| 393 | { |
Tony Lindgren | 4c3cf90 | 2011-10-04 18:17:41 -0700 | [diff] [blame] | 394 | omap2_set_globals_242x(); |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 395 | omap_common_init_early(); |
| 396 | omap2xxx_voltagedomains_init(); |
| 397 | omap242x_powerdomains_init(); |
| 398 | omap242x_clockdomains_init(); |
| 399 | omap2420_hwmod_init(); |
| 400 | omap_hwmod_init_postsetup(); |
| 401 | omap2420_clk_init(); |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 402 | } |
| 403 | |
| 404 | void __init omap2430_init_early(void) |
| 405 | { |
Tony Lindgren | 4c3cf90 | 2011-10-04 18:17:41 -0700 | [diff] [blame] | 406 | omap2_set_globals_243x(); |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 407 | omap_common_init_early(); |
| 408 | omap2xxx_voltagedomains_init(); |
| 409 | omap243x_powerdomains_init(); |
| 410 | omap243x_clockdomains_init(); |
| 411 | omap2430_hwmod_init(); |
| 412 | omap_hwmod_init_postsetup(); |
| 413 | omap2430_clk_init(); |
| 414 | } |
Sanjeev Premi | c4e2d24 | 2011-10-13 21:44:10 +0530 | [diff] [blame] | 415 | #endif |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 416 | |
| 417 | /* |
| 418 | * Currently only board-omap3beagle.c should call this because of the |
| 419 | * same machine_id for 34xx and 36xx beagle.. Will get fixed with DT. |
| 420 | */ |
Sanjeev Premi | c4e2d24 | 2011-10-13 21:44:10 +0530 | [diff] [blame] | 421 | #ifdef CONFIG_ARCH_OMAP3 |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 422 | void __init omap3_init_early(void) |
| 423 | { |
Tony Lindgren | 4c3cf90 | 2011-10-04 18:17:41 -0700 | [diff] [blame] | 424 | omap2_set_globals_3xxx(); |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 425 | omap_common_init_early(); |
| 426 | omap3xxx_voltagedomains_init(); |
| 427 | omap3xxx_powerdomains_init(); |
| 428 | omap3xxx_clockdomains_init(); |
| 429 | omap3xxx_hwmod_init(); |
| 430 | omap_hwmod_init_postsetup(); |
| 431 | omap3xxx_clk_init(); |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 432 | } |
| 433 | |
| 434 | void __init omap3430_init_early(void) |
| 435 | { |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 436 | omap3_init_early(); |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 437 | } |
| 438 | |
| 439 | void __init omap35xx_init_early(void) |
| 440 | { |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 441 | omap3_init_early(); |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 442 | } |
| 443 | |
| 444 | void __init omap3630_init_early(void) |
| 445 | { |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 446 | omap3_init_early(); |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 447 | } |
| 448 | |
| 449 | void __init am35xx_init_early(void) |
| 450 | { |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 451 | omap3_init_early(); |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 452 | } |
| 453 | |
Hemant Pedanekar | a920360 | 2011-12-13 10:46:44 -0800 | [diff] [blame] | 454 | void __init ti81xx_init_early(void) |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 455 | { |
Hemant Pedanekar | a920360 | 2011-12-13 10:46:44 -0800 | [diff] [blame] | 456 | omap2_set_globals_ti81xx(); |
Tony Lindgren | 4c3cf90 | 2011-10-04 18:17:41 -0700 | [diff] [blame] | 457 | omap_common_init_early(); |
| 458 | omap3xxx_voltagedomains_init(); |
| 459 | omap3xxx_powerdomains_init(); |
| 460 | omap3xxx_clockdomains_init(); |
| 461 | omap3xxx_hwmod_init(); |
| 462 | omap_hwmod_init_postsetup(); |
| 463 | omap3xxx_clk_init(); |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 464 | } |
Sanjeev Premi | c4e2d24 | 2011-10-13 21:44:10 +0530 | [diff] [blame] | 465 | #endif |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 466 | |
Sanjeev Premi | c4e2d24 | 2011-10-13 21:44:10 +0530 | [diff] [blame] | 467 | #ifdef CONFIG_ARCH_OMAP4 |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 468 | void __init omap4430_init_early(void) |
| 469 | { |
Tony Lindgren | 4c3cf90 | 2011-10-04 18:17:41 -0700 | [diff] [blame] | 470 | omap2_set_globals_443x(); |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 471 | omap_common_init_early(); |
| 472 | omap44xx_voltagedomains_init(); |
| 473 | omap44xx_powerdomains_init(); |
| 474 | omap44xx_clockdomains_init(); |
| 475 | omap44xx_hwmod_init(); |
| 476 | omap_hwmod_init_postsetup(); |
| 477 | omap4xxx_clk_init(); |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 478 | } |
Sanjeev Premi | c4e2d24 | 2011-10-13 21:44:10 +0530 | [diff] [blame] | 479 | #endif |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 480 | |
Tony Lindgren | a4ca9db | 2011-08-22 23:57:23 -0700 | [diff] [blame] | 481 | void __init omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0, |
Paul Walmsley | 4805734 | 2010-12-21 15:25:10 -0700 | [diff] [blame] | 482 | struct omap_sdrc_params *sdrc_cs1) |
| 483 | { |
Tony Lindgren | a66cb34 | 2011-10-04 13:52:57 -0700 | [diff] [blame] | 484 | omap_sram_init(); |
| 485 | |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 486 | if (cpu_is_omap24xx() || omap3_has_sdrc()) { |
Kevin Hilman | aa4b1f6 | 2010-03-10 17:16:31 +0000 | [diff] [blame] | 487 | omap2_sdrc_init(sdrc_cs0, sdrc_cs1); |
| 488 | _omap2_init_reprogram_sdrc(); |
| 489 | } |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 490 | } |
Tony Lindgren | df1e9d1 | 2010-12-10 09:46:24 -0800 | [diff] [blame] | 491 | |
| 492 | /* |
| 493 | * NOTE: Please use ioremap + __raw_read/write where possible instead of these |
| 494 | */ |
| 495 | |
| 496 | u8 omap_readb(u32 pa) |
| 497 | { |
| 498 | return __raw_readb(OMAP2_L4_IO_ADDRESS(pa)); |
| 499 | } |
| 500 | EXPORT_SYMBOL(omap_readb); |
| 501 | |
| 502 | u16 omap_readw(u32 pa) |
| 503 | { |
| 504 | return __raw_readw(OMAP2_L4_IO_ADDRESS(pa)); |
| 505 | } |
| 506 | EXPORT_SYMBOL(omap_readw); |
| 507 | |
| 508 | u32 omap_readl(u32 pa) |
| 509 | { |
| 510 | return __raw_readl(OMAP2_L4_IO_ADDRESS(pa)); |
| 511 | } |
| 512 | EXPORT_SYMBOL(omap_readl); |
| 513 | |
| 514 | void omap_writeb(u8 v, u32 pa) |
| 515 | { |
| 516 | __raw_writeb(v, OMAP2_L4_IO_ADDRESS(pa)); |
| 517 | } |
| 518 | EXPORT_SYMBOL(omap_writeb); |
| 519 | |
| 520 | void omap_writew(u16 v, u32 pa) |
| 521 | { |
| 522 | __raw_writew(v, OMAP2_L4_IO_ADDRESS(pa)); |
| 523 | } |
| 524 | EXPORT_SYMBOL(omap_writew); |
| 525 | |
| 526 | void omap_writel(u32 v, u32 pa) |
| 527 | { |
| 528 | __raw_writel(v, OMAP2_L4_IO_ADDRESS(pa)); |
| 529 | } |
| 530 | EXPORT_SYMBOL(omap_writel); |