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> |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 24 | |
Tony Lindgren | 120db2c | 2006-04-02 17:46:27 +0100 | [diff] [blame] | 25 | #include <asm/tlb.h> |
Tony Lindgren | 120db2c | 2006-04-02 17:46:27 +0100 | [diff] [blame] | 26 | #include <asm/mach/map.h> |
| 27 | |
Tony Lindgren | ce491cf | 2009-10-20 09:40:47 -0700 | [diff] [blame] | 28 | #include <plat/sram.h> |
| 29 | #include <plat/sdrc.h> |
Tony Lindgren | ce491cf | 2009-10-20 09:40:47 -0700 | [diff] [blame] | 30 | #include <plat/serial.h> |
Tony Lindgren | ee0839c | 2012-02-24 10:34:35 -0800 | [diff] [blame] | 31 | #include <plat/omap-pm.h> |
| 32 | #include <plat/omap_hwmod.h> |
| 33 | #include <plat/multi.h> |
Tony Lindgren | 646e3ed | 2008-10-06 15:49:36 +0300 | [diff] [blame] | 34 | |
Tony Lindgren | ee0839c | 2012-02-24 10:34:35 -0800 | [diff] [blame] | 35 | #include "iomap.h" |
| 36 | #include "voltage.h" |
| 37 | #include "powerdomain.h" |
| 38 | #include "clockdomain.h" |
| 39 | #include "common.h" |
Paul Walmsley | e80a972 | 2010-01-26 20:13:12 -0700 | [diff] [blame] | 40 | #include "clock2xxx.h" |
Paul Walmsley | 657ebfa | 2010-02-22 22:09:20 -0700 | [diff] [blame] | 41 | #include "clock3xxx.h" |
Paul Walmsley | e80a972 | 2010-01-26 20:13:12 -0700 | [diff] [blame] | 42 | #include "clock44xx.h" |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 43 | |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 44 | /* |
| 45 | * The machine specific code may provide the extra mapping besides the |
| 46 | * default mapping provided here. |
| 47 | */ |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 48 | |
Tony Lindgren | e48f814 | 2012-03-06 11:49:22 -0800 | [diff] [blame] | 49 | #if defined(CONFIG_SOC_OMAP2420) || defined(CONFIG_SOC_OMAP2430) |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 50 | static struct map_desc omap24xx_io_desc[] __initdata = { |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 51 | { |
| 52 | .virtual = L3_24XX_VIRT, |
| 53 | .pfn = __phys_to_pfn(L3_24XX_PHYS), |
| 54 | .length = L3_24XX_SIZE, |
| 55 | .type = MT_DEVICE |
| 56 | }, |
Kyungmin Park | 09f21ed | 2008-02-20 15:30:06 -0800 | [diff] [blame] | 57 | { |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 58 | .virtual = L4_24XX_VIRT, |
| 59 | .pfn = __phys_to_pfn(L4_24XX_PHYS), |
| 60 | .length = L4_24XX_SIZE, |
Syed Mohammed Khasim | 72d0f1c | 2006-12-06 17:14:05 -0800 | [diff] [blame] | 61 | .type = MT_DEVICE |
| 62 | }, |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 63 | }; |
| 64 | |
Tony Lindgren | 59b479e | 2011-01-27 16:39:40 -0800 | [diff] [blame] | 65 | #ifdef CONFIG_SOC_OMAP2420 |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 66 | static struct map_desc omap242x_io_desc[] __initdata = { |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 67 | { |
Paul Walmsley | 7adb998 | 2010-01-08 15:23:05 -0700 | [diff] [blame] | 68 | .virtual = DSP_MEM_2420_VIRT, |
| 69 | .pfn = __phys_to_pfn(DSP_MEM_2420_PHYS), |
| 70 | .length = DSP_MEM_2420_SIZE, |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 71 | .type = MT_DEVICE |
| 72 | }, |
| 73 | { |
Paul Walmsley | 7adb998 | 2010-01-08 15:23:05 -0700 | [diff] [blame] | 74 | .virtual = DSP_IPI_2420_VIRT, |
| 75 | .pfn = __phys_to_pfn(DSP_IPI_2420_PHYS), |
| 76 | .length = DSP_IPI_2420_SIZE, |
Tony Lindgren | c40fae95 | 2006-12-07 13:58:10 -0800 | [diff] [blame] | 77 | .type = MT_DEVICE |
| 78 | }, |
| 79 | { |
Paul Walmsley | 7adb998 | 2010-01-08 15:23:05 -0700 | [diff] [blame] | 80 | .virtual = DSP_MMU_2420_VIRT, |
| 81 | .pfn = __phys_to_pfn(DSP_MMU_2420_PHYS), |
| 82 | .length = DSP_MMU_2420_SIZE, |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 83 | .type = MT_DEVICE |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 84 | }, |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 85 | }; |
| 86 | |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 87 | #endif |
| 88 | |
Tony Lindgren | 59b479e | 2011-01-27 16:39:40 -0800 | [diff] [blame] | 89 | #ifdef CONFIG_SOC_OMAP2430 |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 90 | static struct map_desc omap243x_io_desc[] __initdata = { |
| 91 | { |
| 92 | .virtual = L4_WK_243X_VIRT, |
| 93 | .pfn = __phys_to_pfn(L4_WK_243X_PHYS), |
| 94 | .length = L4_WK_243X_SIZE, |
| 95 | .type = MT_DEVICE |
| 96 | }, |
| 97 | { |
| 98 | .virtual = OMAP243X_GPMC_VIRT, |
| 99 | .pfn = __phys_to_pfn(OMAP243X_GPMC_PHYS), |
| 100 | .length = OMAP243X_GPMC_SIZE, |
| 101 | .type = MT_DEVICE |
| 102 | }, |
| 103 | { |
| 104 | .virtual = OMAP243X_SDRC_VIRT, |
| 105 | .pfn = __phys_to_pfn(OMAP243X_SDRC_PHYS), |
| 106 | .length = OMAP243X_SDRC_SIZE, |
| 107 | .type = MT_DEVICE |
| 108 | }, |
| 109 | { |
| 110 | .virtual = OMAP243X_SMS_VIRT, |
| 111 | .pfn = __phys_to_pfn(OMAP243X_SMS_PHYS), |
| 112 | .length = OMAP243X_SMS_SIZE, |
| 113 | .type = MT_DEVICE |
| 114 | }, |
| 115 | }; |
| 116 | #endif |
| 117 | #endif |
| 118 | |
Tony Lindgren | a8eb7ca | 2010-02-12 12:26:48 -0800 | [diff] [blame] | 119 | #ifdef CONFIG_ARCH_OMAP3 |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 120 | static struct map_desc omap34xx_io_desc[] __initdata = { |
| 121 | { |
| 122 | .virtual = L3_34XX_VIRT, |
| 123 | .pfn = __phys_to_pfn(L3_34XX_PHYS), |
| 124 | .length = L3_34XX_SIZE, |
| 125 | .type = MT_DEVICE |
| 126 | }, |
| 127 | { |
| 128 | .virtual = L4_34XX_VIRT, |
| 129 | .pfn = __phys_to_pfn(L4_34XX_PHYS), |
| 130 | .length = L4_34XX_SIZE, |
| 131 | .type = MT_DEVICE |
| 132 | }, |
| 133 | { |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 134 | .virtual = OMAP34XX_GPMC_VIRT, |
| 135 | .pfn = __phys_to_pfn(OMAP34XX_GPMC_PHYS), |
| 136 | .length = OMAP34XX_GPMC_SIZE, |
| 137 | .type = MT_DEVICE |
| 138 | }, |
| 139 | { |
| 140 | .virtual = OMAP343X_SMS_VIRT, |
| 141 | .pfn = __phys_to_pfn(OMAP343X_SMS_PHYS), |
| 142 | .length = OMAP343X_SMS_SIZE, |
| 143 | .type = MT_DEVICE |
| 144 | }, |
| 145 | { |
| 146 | .virtual = OMAP343X_SDRC_VIRT, |
| 147 | .pfn = __phys_to_pfn(OMAP343X_SDRC_PHYS), |
| 148 | .length = OMAP343X_SDRC_SIZE, |
| 149 | .type = MT_DEVICE |
| 150 | }, |
| 151 | { |
| 152 | .virtual = L4_PER_34XX_VIRT, |
| 153 | .pfn = __phys_to_pfn(L4_PER_34XX_PHYS), |
| 154 | .length = L4_PER_34XX_SIZE, |
| 155 | .type = MT_DEVICE |
| 156 | }, |
| 157 | { |
| 158 | .virtual = L4_EMU_34XX_VIRT, |
| 159 | .pfn = __phys_to_pfn(L4_EMU_34XX_PHYS), |
| 160 | .length = L4_EMU_34XX_SIZE, |
| 161 | .type = MT_DEVICE |
| 162 | }, |
Tony Lindgren | a4f57b8 | 2010-04-30 12:57:14 -0700 | [diff] [blame] | 163 | #if defined(CONFIG_DEBUG_LL) && \ |
| 164 | (defined(CONFIG_MACH_OMAP_ZOOM2) || defined(CONFIG_MACH_OMAP_ZOOM3)) |
| 165 | { |
| 166 | .virtual = ZOOM_UART_VIRT, |
| 167 | .pfn = __phys_to_pfn(ZOOM_UART_BASE), |
| 168 | .length = SZ_1M, |
| 169 | .type = MT_DEVICE |
| 170 | }, |
| 171 | #endif |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 172 | }; |
| 173 | #endif |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 174 | |
Kevin Hilman | 3395955 | 2012-05-10 11:10:07 -0700 | [diff] [blame^] | 175 | #ifdef CONFIG_SOC_TI81XX |
Hemant Pedanekar | a920360 | 2011-12-13 10:46:44 -0800 | [diff] [blame] | 176 | static struct map_desc omapti81xx_io_desc[] __initdata = { |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 177 | { |
| 178 | .virtual = L4_34XX_VIRT, |
| 179 | .pfn = __phys_to_pfn(L4_34XX_PHYS), |
| 180 | .length = L4_34XX_SIZE, |
| 181 | .type = MT_DEVICE |
Afzal Mohammed | 1e6cb14 | 2011-12-13 10:46:43 -0800 | [diff] [blame] | 182 | } |
| 183 | }; |
| 184 | #endif |
| 185 | |
| 186 | #ifdef CONFIG_SOC_OMAPAM33XX |
| 187 | static struct map_desc omapam33xx_io_desc[] __initdata = { |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 188 | { |
| 189 | .virtual = L4_34XX_VIRT, |
| 190 | .pfn = __phys_to_pfn(L4_34XX_PHYS), |
| 191 | .length = L4_34XX_SIZE, |
| 192 | .type = MT_DEVICE |
| 193 | }, |
Afzal Mohammed | 1e6cb14 | 2011-12-13 10:46:43 -0800 | [diff] [blame] | 194 | { |
| 195 | .virtual = L4_WK_AM33XX_VIRT, |
| 196 | .pfn = __phys_to_pfn(L4_WK_AM33XX_PHYS), |
| 197 | .length = L4_WK_AM33XX_SIZE, |
| 198 | .type = MT_DEVICE |
| 199 | } |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 200 | }; |
| 201 | #endif |
| 202 | |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 203 | #ifdef CONFIG_ARCH_OMAP4 |
| 204 | static struct map_desc omap44xx_io_desc[] __initdata = { |
| 205 | { |
| 206 | .virtual = L3_44XX_VIRT, |
| 207 | .pfn = __phys_to_pfn(L3_44XX_PHYS), |
| 208 | .length = L3_44XX_SIZE, |
| 209 | .type = MT_DEVICE, |
| 210 | }, |
| 211 | { |
| 212 | .virtual = L4_44XX_VIRT, |
| 213 | .pfn = __phys_to_pfn(L4_44XX_PHYS), |
| 214 | .length = L4_44XX_SIZE, |
| 215 | .type = MT_DEVICE, |
| 216 | }, |
| 217 | { |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 218 | .virtual = OMAP44XX_GPMC_VIRT, |
| 219 | .pfn = __phys_to_pfn(OMAP44XX_GPMC_PHYS), |
| 220 | .length = OMAP44XX_GPMC_SIZE, |
| 221 | .type = MT_DEVICE, |
| 222 | }, |
| 223 | { |
Santosh Shilimkar | f5d2d65 | 2009-10-19 17:25:57 -0700 | [diff] [blame] | 224 | .virtual = OMAP44XX_EMIF1_VIRT, |
| 225 | .pfn = __phys_to_pfn(OMAP44XX_EMIF1_PHYS), |
| 226 | .length = OMAP44XX_EMIF1_SIZE, |
| 227 | .type = MT_DEVICE, |
| 228 | }, |
| 229 | { |
| 230 | .virtual = OMAP44XX_EMIF2_VIRT, |
| 231 | .pfn = __phys_to_pfn(OMAP44XX_EMIF2_PHYS), |
| 232 | .length = OMAP44XX_EMIF2_SIZE, |
| 233 | .type = MT_DEVICE, |
| 234 | }, |
| 235 | { |
| 236 | .virtual = OMAP44XX_DMM_VIRT, |
| 237 | .pfn = __phys_to_pfn(OMAP44XX_DMM_PHYS), |
| 238 | .length = OMAP44XX_DMM_SIZE, |
| 239 | .type = MT_DEVICE, |
| 240 | }, |
| 241 | { |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 242 | .virtual = L4_PER_44XX_VIRT, |
| 243 | .pfn = __phys_to_pfn(L4_PER_44XX_PHYS), |
| 244 | .length = L4_PER_44XX_SIZE, |
| 245 | .type = MT_DEVICE, |
| 246 | }, |
| 247 | { |
| 248 | .virtual = L4_EMU_44XX_VIRT, |
| 249 | .pfn = __phys_to_pfn(L4_EMU_44XX_PHYS), |
| 250 | .length = L4_EMU_44XX_SIZE, |
| 251 | .type = MT_DEVICE, |
| 252 | }, |
Santosh Shilimkar | 137d105 | 2011-06-25 18:04:31 -0700 | [diff] [blame] | 253 | #ifdef CONFIG_OMAP4_ERRATA_I688 |
| 254 | { |
| 255 | .virtual = OMAP4_SRAM_VA, |
| 256 | .pfn = __phys_to_pfn(OMAP4_SRAM_PA), |
| 257 | .length = PAGE_SIZE, |
| 258 | .type = MT_MEMORY_SO, |
| 259 | }, |
| 260 | #endif |
| 261 | |
Santosh Shilimkar | 4416907 | 2009-05-28 14:16:04 -0700 | [diff] [blame] | 262 | }; |
| 263 | #endif |
Syed Mohammed, Khasim | cc26b3b | 2008-10-09 17:51:41 +0300 | [diff] [blame] | 264 | |
Tony Lindgren | 59b479e | 2011-01-27 16:39:40 -0800 | [diff] [blame] | 265 | #ifdef CONFIG_SOC_OMAP2420 |
Aaro Koskinen | 8185e46 | 2010-03-03 16:24:53 +0000 | [diff] [blame] | 266 | void __init omap242x_map_common_io(void) |
Tony Lindgren | 6fbd55d | 2010-02-12 12:26:47 -0800 | [diff] [blame] | 267 | { |
| 268 | iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc)); |
| 269 | iotable_init(omap242x_io_desc, ARRAY_SIZE(omap242x_io_desc)); |
Tony Lindgren | 6fbd55d | 2010-02-12 12:26:47 -0800 | [diff] [blame] | 270 | } |
| 271 | #endif |
| 272 | |
Tony Lindgren | 59b479e | 2011-01-27 16:39:40 -0800 | [diff] [blame] | 273 | #ifdef CONFIG_SOC_OMAP2430 |
Aaro Koskinen | 8185e46 | 2010-03-03 16:24:53 +0000 | [diff] [blame] | 274 | void __init omap243x_map_common_io(void) |
Tony Lindgren | 6fbd55d | 2010-02-12 12:26:47 -0800 | [diff] [blame] | 275 | { |
| 276 | iotable_init(omap24xx_io_desc, ARRAY_SIZE(omap24xx_io_desc)); |
| 277 | iotable_init(omap243x_io_desc, ARRAY_SIZE(omap243x_io_desc)); |
Tony Lindgren | 6fbd55d | 2010-02-12 12:26:47 -0800 | [diff] [blame] | 278 | } |
| 279 | #endif |
| 280 | |
Tony Lindgren | a8eb7ca | 2010-02-12 12:26:48 -0800 | [diff] [blame] | 281 | #ifdef CONFIG_ARCH_OMAP3 |
Aaro Koskinen | 8185e46 | 2010-03-03 16:24:53 +0000 | [diff] [blame] | 282 | void __init omap34xx_map_common_io(void) |
Tony Lindgren | 6fbd55d | 2010-02-12 12:26:47 -0800 | [diff] [blame] | 283 | { |
| 284 | iotable_init(omap34xx_io_desc, ARRAY_SIZE(omap34xx_io_desc)); |
Tony Lindgren | 6fbd55d | 2010-02-12 12:26:47 -0800 | [diff] [blame] | 285 | } |
| 286 | #endif |
| 287 | |
Kevin Hilman | 3395955 | 2012-05-10 11:10:07 -0700 | [diff] [blame^] | 288 | #ifdef CONFIG_SOC_TI81XX |
Hemant Pedanekar | a920360 | 2011-12-13 10:46:44 -0800 | [diff] [blame] | 289 | void __init omapti81xx_map_common_io(void) |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 290 | { |
Hemant Pedanekar | a920360 | 2011-12-13 10:46:44 -0800 | [diff] [blame] | 291 | iotable_init(omapti81xx_io_desc, ARRAY_SIZE(omapti81xx_io_desc)); |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 292 | } |
| 293 | #endif |
| 294 | |
Afzal Mohammed | 1e6cb14 | 2011-12-13 10:46:43 -0800 | [diff] [blame] | 295 | #ifdef CONFIG_SOC_OMAPAM33XX |
| 296 | void __init omapam33xx_map_common_io(void) |
| 297 | { |
| 298 | iotable_init(omapam33xx_io_desc, ARRAY_SIZE(omapam33xx_io_desc)); |
Tony Lindgren | 6fbd55d | 2010-02-12 12:26:47 -0800 | [diff] [blame] | 299 | } |
| 300 | #endif |
| 301 | |
| 302 | #ifdef CONFIG_ARCH_OMAP4 |
Aaro Koskinen | 8185e46 | 2010-03-03 16:24:53 +0000 | [diff] [blame] | 303 | void __init omap44xx_map_common_io(void) |
Tony Lindgren | 6fbd55d | 2010-02-12 12:26:47 -0800 | [diff] [blame] | 304 | { |
| 305 | iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc)); |
Santosh Shilimkar | 2ec1fc4 | 2012-02-02 19:33:55 +0530 | [diff] [blame] | 306 | omap_barriers_init(); |
Tony Lindgren | 6fbd55d | 2010-02-12 12:26:47 -0800 | [diff] [blame] | 307 | } |
| 308 | #endif |
| 309 | |
Paul Walmsley | 2f135ea | 2009-06-19 19:08:25 -0600 | [diff] [blame] | 310 | /* |
| 311 | * omap2_init_reprogram_sdrc - reprogram SDRC timing parameters |
| 312 | * |
| 313 | * Sets the CORE DPLL3 M2 divider to the same value that it's at |
| 314 | * currently. This has the effect of setting the SDRC SDRAM AC timing |
| 315 | * registers to the values currently defined by the kernel. Currently |
| 316 | * only defined for OMAP3; will return 0 if called on OMAP2. Returns |
| 317 | * -EINVAL if the dpll3_m2_ck cannot be found, 0 if called on OMAP2, |
| 318 | * or passes along the return value of clk_set_rate(). |
| 319 | */ |
| 320 | static int __init _omap2_init_reprogram_sdrc(void) |
| 321 | { |
| 322 | struct clk *dpll3_m2_ck; |
| 323 | int v = -EINVAL; |
| 324 | long rate; |
| 325 | |
| 326 | if (!cpu_is_omap34xx()) |
| 327 | return 0; |
| 328 | |
| 329 | dpll3_m2_ck = clk_get(NULL, "dpll3_m2_ck"); |
Aaro Koskinen | e281f7e | 2010-11-30 14:17:58 +0000 | [diff] [blame] | 330 | if (IS_ERR(dpll3_m2_ck)) |
Paul Walmsley | 2f135ea | 2009-06-19 19:08:25 -0600 | [diff] [blame] | 331 | return -EINVAL; |
| 332 | |
| 333 | rate = clk_get_rate(dpll3_m2_ck); |
| 334 | pr_info("Reprogramming SDRC clock to %ld Hz\n", rate); |
| 335 | v = clk_set_rate(dpll3_m2_ck, rate); |
| 336 | if (v) |
| 337 | pr_err("dpll3_m2_clk rate change failed: %d\n", v); |
| 338 | |
| 339 | clk_put(dpll3_m2_ck); |
| 340 | |
| 341 | return v; |
| 342 | } |
| 343 | |
Paul Walmsley | 2092e5c | 2010-12-14 12:42:35 -0700 | [diff] [blame] | 344 | static int _set_hwmod_postsetup_state(struct omap_hwmod *oh, void *data) |
| 345 | { |
| 346 | return omap_hwmod_set_postsetup_state(oh, *(u8 *)data); |
| 347 | } |
| 348 | |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 349 | static void __init omap_common_init_early(void) |
| 350 | { |
Arnd Bergmann | df80442 | 2011-11-01 13:47:27 +0100 | [diff] [blame] | 351 | omap_init_consistent_dma_size(); |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 352 | } |
| 353 | |
| 354 | static void __init omap_hwmod_init_postsetup(void) |
Tony Lindgren | 120db2c | 2006-04-02 17:46:27 +0100 | [diff] [blame] | 355 | { |
Paul Walmsley | 2092e5c | 2010-12-14 12:42:35 -0700 | [diff] [blame] | 356 | u8 postsetup_state; |
| 357 | |
Paul Walmsley | 2092e5c | 2010-12-14 12:42:35 -0700 | [diff] [blame] | 358 | /* Set the default postsetup state for all hwmods */ |
| 359 | #ifdef CONFIG_PM_RUNTIME |
| 360 | postsetup_state = _HWMOD_STATE_IDLE; |
| 361 | #else |
| 362 | postsetup_state = _HWMOD_STATE_ENABLED; |
| 363 | #endif |
| 364 | omap_hwmod_for_each(_set_hwmod_postsetup_state, &postsetup_state); |
Benoit Cousson | 55d2cb0 | 2010-05-12 17:54:36 +0200 | [diff] [blame] | 365 | |
Paul Walmsley | ff2516f | 2010-12-21 15:39:15 -0700 | [diff] [blame] | 366 | /* |
| 367 | * Set the default postsetup state for unusual modules (like |
| 368 | * MPU WDT). |
| 369 | * |
| 370 | * The postsetup_state is not actually used until |
| 371 | * omap_hwmod_late_init(), so boards that desire full watchdog |
| 372 | * coverage of kernel initialization can reprogram the |
| 373 | * postsetup_state between the calls to |
Tony Lindgren | a4ca9db | 2011-08-22 23:57:23 -0700 | [diff] [blame] | 374 | * omap2_init_common_infra() and omap_sdrc_init(). |
Paul Walmsley | ff2516f | 2010-12-21 15:39:15 -0700 | [diff] [blame] | 375 | * |
| 376 | * XXX ideally we could detect whether the MPU WDT was currently |
| 377 | * enabled here and make this conditional |
| 378 | */ |
| 379 | postsetup_state = _HWMOD_STATE_DISABLED; |
| 380 | omap_hwmod_for_each_by_class("wd_timer", |
| 381 | _set_hwmod_postsetup_state, |
| 382 | &postsetup_state); |
| 383 | |
Kevin Hilman | 53da4ce | 2010-12-09 09:13:48 -0600 | [diff] [blame] | 384 | omap_pm_if_early_init(); |
Paul Walmsley | 4805734 | 2010-12-21 15:25:10 -0700 | [diff] [blame] | 385 | } |
| 386 | |
Paul Walmsley | 1611079 | 2012-01-25 12:57:46 -0700 | [diff] [blame] | 387 | #ifdef CONFIG_SOC_OMAP2420 |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 388 | void __init omap2420_init_early(void) |
| 389 | { |
Tony Lindgren | 4c3cf90 | 2011-10-04 18:17:41 -0700 | [diff] [blame] | 390 | omap2_set_globals_242x(); |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 391 | omap2xxx_check_revision(); |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 392 | omap_common_init_early(); |
| 393 | omap2xxx_voltagedomains_init(); |
| 394 | omap242x_powerdomains_init(); |
| 395 | omap242x_clockdomains_init(); |
| 396 | omap2420_hwmod_init(); |
| 397 | omap_hwmod_init_postsetup(); |
| 398 | omap2420_clk_init(); |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 399 | } |
Paul Walmsley | 1611079 | 2012-01-25 12:57:46 -0700 | [diff] [blame] | 400 | #endif |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 401 | |
Paul Walmsley | 1611079 | 2012-01-25 12:57:46 -0700 | [diff] [blame] | 402 | #ifdef CONFIG_SOC_OMAP2430 |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 403 | void __init omap2430_init_early(void) |
| 404 | { |
Tony Lindgren | 4c3cf90 | 2011-10-04 18:17:41 -0700 | [diff] [blame] | 405 | omap2_set_globals_243x(); |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 406 | omap2xxx_check_revision(); |
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(); |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 425 | omap3xxx_check_revision(); |
| 426 | omap3xxx_check_features(); |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 427 | omap_common_init_early(); |
| 428 | omap3xxx_voltagedomains_init(); |
| 429 | omap3xxx_powerdomains_init(); |
| 430 | omap3xxx_clockdomains_init(); |
| 431 | omap3xxx_hwmod_init(); |
| 432 | omap_hwmod_init_postsetup(); |
| 433 | omap3xxx_clk_init(); |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 434 | } |
| 435 | |
| 436 | void __init omap3430_init_early(void) |
| 437 | { |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 438 | omap3_init_early(); |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 439 | } |
| 440 | |
| 441 | void __init omap35xx_init_early(void) |
| 442 | { |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 443 | omap3_init_early(); |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 444 | } |
| 445 | |
| 446 | void __init omap3630_init_early(void) |
| 447 | { |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 448 | omap3_init_early(); |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 449 | } |
| 450 | |
| 451 | void __init am35xx_init_early(void) |
| 452 | { |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 453 | omap3_init_early(); |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 454 | } |
| 455 | |
Hemant Pedanekar | a920360 | 2011-12-13 10:46:44 -0800 | [diff] [blame] | 456 | void __init ti81xx_init_early(void) |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 457 | { |
Hemant Pedanekar | a920360 | 2011-12-13 10:46:44 -0800 | [diff] [blame] | 458 | omap2_set_globals_ti81xx(); |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 459 | omap3xxx_check_revision(); |
| 460 | ti81xx_check_features(); |
Tony Lindgren | 4c3cf90 | 2011-10-04 18:17:41 -0700 | [diff] [blame] | 461 | omap_common_init_early(); |
| 462 | omap3xxx_voltagedomains_init(); |
| 463 | omap3xxx_powerdomains_init(); |
| 464 | omap3xxx_clockdomains_init(); |
| 465 | omap3xxx_hwmod_init(); |
| 466 | omap_hwmod_init_postsetup(); |
| 467 | omap3xxx_clk_init(); |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 468 | } |
Sanjeev Premi | c4e2d24 | 2011-10-13 21:44:10 +0530 | [diff] [blame] | 469 | #endif |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 470 | |
Sanjeev Premi | c4e2d24 | 2011-10-13 21:44:10 +0530 | [diff] [blame] | 471 | #ifdef CONFIG_ARCH_OMAP4 |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 472 | void __init omap4430_init_early(void) |
| 473 | { |
Tony Lindgren | 4c3cf90 | 2011-10-04 18:17:41 -0700 | [diff] [blame] | 474 | omap2_set_globals_443x(); |
Vaibhav Hiremath | 4de34f3 | 2011-12-19 15:50:15 +0530 | [diff] [blame] | 475 | omap4xxx_check_revision(); |
| 476 | omap4xxx_check_features(); |
Tony Lindgren | 7b250af | 2011-10-04 18:26:28 -0700 | [diff] [blame] | 477 | omap_common_init_early(); |
| 478 | omap44xx_voltagedomains_init(); |
| 479 | omap44xx_powerdomains_init(); |
| 480 | omap44xx_clockdomains_init(); |
| 481 | omap44xx_hwmod_init(); |
| 482 | omap_hwmod_init_postsetup(); |
| 483 | omap4xxx_clk_init(); |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 484 | } |
Sanjeev Premi | c4e2d24 | 2011-10-13 21:44:10 +0530 | [diff] [blame] | 485 | #endif |
Tony Lindgren | 8f5b5a4 | 2011-08-22 23:57:24 -0700 | [diff] [blame] | 486 | |
Tony Lindgren | a4ca9db | 2011-08-22 23:57:23 -0700 | [diff] [blame] | 487 | void __init omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0, |
Paul Walmsley | 4805734 | 2010-12-21 15:25:10 -0700 | [diff] [blame] | 488 | struct omap_sdrc_params *sdrc_cs1) |
| 489 | { |
Tony Lindgren | a66cb34 | 2011-10-04 13:52:57 -0700 | [diff] [blame] | 490 | omap_sram_init(); |
| 491 | |
Hemant Pedanekar | 0100171 | 2011-02-16 08:31:39 -0800 | [diff] [blame] | 492 | if (cpu_is_omap24xx() || omap3_has_sdrc()) { |
Kevin Hilman | aa4b1f6 | 2010-03-10 17:16:31 +0000 | [diff] [blame] | 493 | omap2_sdrc_init(sdrc_cs0, sdrc_cs1); |
| 494 | _omap2_init_reprogram_sdrc(); |
| 495 | } |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 496 | } |