arch/arm/mach-omap2/common.c

   1 /*
   2  * linux/arch/arm/mach-omap2/common.c
   3  *
   4  * Code common to all OMAP2+ machines.
   5  *
   6  * Copyright (C) 2009 Texas Instruments
   7  * Copyright (C) 2010 Nokia Corporation
   8  * Tony Lindgren <tony@atomide.com>
   9  * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  */
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/clk.h>
  18 #include <linux/io.h>
  19 #include <linux/platform_data/dsp-omap.h>
  20
  21 #include <plat/vram.h>
  22
  23 #include "soc.h"
  24 #include "iomap.h"
  25 #include "common.h"
  26 #include "clock.h"
  27 #include "sdrc.h"
  28 #include "control.h"
  29 #include "omap-secure.h"
  30
  31 /* Global address base setup code */
  32
  33 static void __init __omap2_set_globals(struct omap_globals *omap2_globals)
  34 {
  35         omap2_set_globals_tap(omap2_globals);
  36         omap2_set_globals_sdrc(omap2_globals);
  37         omap2_set_globals_control(omap2_globals);
  38         omap2_set_globals_prcm(omap2_globals);
  39 }
  40
  41 #if defined(CONFIG_SOC_OMAP2420)
  42
  43 static struct omap_globals omap242x_globals = {
  44         .class  = OMAP242X_CLASS,
  45         .tap    = OMAP2_L4_IO_ADDRESS(0x48014000),
  46         .sdrc   = OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE),
  47         .sms    = OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE),
  48         .ctrl   = OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE),
  49         .prm    = OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE),
  50         .cm     = OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE),
  51 };
  52
  53 void __init omap2_set_globals_242x(void)
  54 {
  55         __omap2_set_globals(&omap242x_globals);
  56 }
  57
  58 void __init omap242x_map_io(void)
  59 {
  60         omap242x_map_common_io();
  61 }
  62 #endif
  63
  64 #if defined(CONFIG_SOC_OMAP2430)
  65
  66 static struct omap_globals omap243x_globals = {
  67         .class  = OMAP243X_CLASS,
  68         .tap    = OMAP2_L4_IO_ADDRESS(0x4900a000),
  69         .sdrc   = OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE),
  70         .sms    = OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE),
  71         .ctrl   = OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE),
  72         .prm    = OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE),
  73         .cm     = OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE),
  74 };
  75
  76 void __init omap2_set_globals_243x(void)
  77 {
  78         __omap2_set_globals(&omap243x_globals);
  79 }
  80
  81 void __init omap243x_map_io(void)
  82 {
  83         omap243x_map_common_io();
  84 }
  85 #endif
  86
  87 #if defined(CONFIG_ARCH_OMAP3)
  88
  89 static struct omap_globals omap3_globals = {
  90         .class  = OMAP343X_CLASS,
  91         .tap    = OMAP2_L4_IO_ADDRESS(0x4830A000),
  92         .sdrc   = OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE),
  93         .sms    = OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE),
  94         .ctrl   = OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE),
  95         .prm    = OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE),
  96         .cm     = OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE),
  97 };
  98
  99 void __init omap2_set_globals_3xxx(void)
 100 {
 101         __omap2_set_globals(&omap3_globals);
 102 }
 103
 104 void __init omap3_map_io(void)
 105 {
 106         omap34xx_map_common_io();
 107 }
 108
 109 /*
 110  * Adjust TAP register base such that omap3_check_revision accesses the correct
 111  * TI81XX register for checking device ID (it adds 0x204 to tap base while
 112  * TI81XX DEVICE ID register is at offset 0x600 from control base).
 113  */
 114 #define TI81XX_TAP_BASE         (TI81XX_CTRL_BASE + \
 115                                 TI81XX_CONTROL_DEVICE_ID - 0x204)
 116
 117 static struct omap_globals ti81xx_globals = {
 118         .class  = OMAP343X_CLASS,
 119         .tap    = OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE),
 120         .ctrl   = OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE),
 121         .prm    = OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE),
 122         .cm     = OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE),
 123 };
 124
 125 void __init omap2_set_globals_ti81xx(void)
 126 {
 127         __omap2_set_globals(&ti81xx_globals);
 128 }
 129
 130 void __init ti81xx_map_io(void)
 131 {
 132         omapti81xx_map_common_io();
 133 }
 134 #endif
 135
 136 #if defined(CONFIG_SOC_AM33XX)
 137 #define AM33XX_TAP_BASE         (AM33XX_CTRL_BASE + \
 138                                 TI81XX_CONTROL_DEVICE_ID - 0x204)
 139
 140 static struct omap_globals am33xx_globals = {
 141         .class  = AM335X_CLASS,
 142         .tap    = AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE),
 143         .ctrl   = AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
 144         .prm    = AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE),
 145         .cm     = AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE),
 146 };
 147
 148 void __init omap2_set_globals_am33xx(void)
 149 {
 150         __omap2_set_globals(&am33xx_globals);
 151 }
 152
 153 void __init am33xx_map_io(void)
 154 {
 155         omapam33xx_map_common_io();
 156 }
 157 #endif
 158
 159 #if defined(CONFIG_ARCH_OMAP4)
 160 static struct omap_globals omap4_globals = {
 161         .class  = OMAP443X_CLASS,
 162         .tap    = OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
 163         .ctrl   = OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
 164         .ctrl_pad       = OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE),
 165         .prm    = OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE),
 166         .cm     = OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE),
 167         .cm2    = OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE),
 168         .prcm_mpu       = OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE),
 169 };
 170
 171 void __init omap2_set_globals_443x(void)
 172 {
 173         __omap2_set_globals(&omap4_globals);
 174 }
 175
 176 void __init omap4_map_io(void)
 177 {
 178         omap44xx_map_common_io();
 179 }
 180 #endif
 181
 182 #if defined(CONFIG_SOC_OMAP5)
 183 static struct omap_globals omap5_globals = {
 184         .class  = OMAP54XX_CLASS,
 185         .tap    = OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
 186         .ctrl   = OMAP2_L4_IO_ADDRESS(OMAP54XX_SCM_BASE),
 187         .ctrl_pad       = OMAP2_L4_IO_ADDRESS(OMAP54XX_CTRL_BASE),
 188         .prm    = OMAP2_L4_IO_ADDRESS(OMAP54XX_PRM_BASE),
 189         .cm     = OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_AON_BASE),
 190         .cm2    = OMAP2_L4_IO_ADDRESS(OMAP54XX_CM_CORE_BASE),
 191         .prcm_mpu = OMAP2_L4_IO_ADDRESS(OMAP54XX_PRCM_MPU_BASE),
 192 };
 193
 194 void __init omap2_set_globals_5xxx(void)
 195 {
 196         omap2_set_globals_tap(&omap5_globals);
 197         omap2_set_globals_control(&omap5_globals);
 198         omap2_set_globals_prcm(&omap5_globals);
 199 }
 200
 201 void __init omap5_map_io(void)
 202 {
 203         omap5_map_common_io();
 204 }
 205 #endif
 206
 207 /*
 208  * Stub function for OMAP2 so that common files
 209  * continue to build when custom builds are used
 210  */
 211 int __weak omap_secure_ram_reserve_memblock(void)
 212 {
 213         return 0;
 214 }
 215
 216 void __init omap_reserve(void)
 217 {
 218         omap_vram_reserve_sdram_memblock();
 219         omap_dsp_reserve_sdram_memblock();
 220         omap_secure_ram_reserve_memblock();
 221         omap_barrier_reserve_memblock();
 222 }