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
  20 #include "common.h"
  21 #include <plat/board.h>
  22 #include <plat/mux.h>
  23
  24 #include <plat/clock.h>
  25
  26 #include "sdrc.h"
  27 #include "control.h"
  28
  29 /* Global address base setup code */
  30
  31 #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
  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 #endif
  42
  43 #if defined(CONFIG_SOC_OMAP2420)
  44
  45 static struct omap_globals omap242x_globals = {
  46         .class  = OMAP242X_CLASS,
  47         .tap    = OMAP2_L4_IO_ADDRESS(0x48014000),
  48         .sdrc   = OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE),
  49         .sms    = OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE),
  50         .ctrl   = OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE),
  51         .prm    = OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE),
  52         .cm     = OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE),
  53 };
  54
  55 void __init omap2_set_globals_242x(void)
  56 {
  57         __omap2_set_globals(&omap242x_globals);
  58 }
  59
  60 void __init omap242x_map_io(void)
  61 {
  62         omap242x_map_common_io();
  63 }
  64 #endif
  65
  66 #if defined(CONFIG_SOC_OMAP2430)
  67
  68 static struct omap_globals omap243x_globals = {
  69         .class  = OMAP243X_CLASS,
  70         .tap    = OMAP2_L4_IO_ADDRESS(0x4900a000),
  71         .sdrc   = OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE),
  72         .sms    = OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE),
  73         .ctrl   = OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE),
  74         .prm    = OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE),
  75         .cm     = OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE),
  76 };
  77
  78 void __init omap2_set_globals_243x(void)
  79 {
  80         __omap2_set_globals(&omap243x_globals);
  81 }
  82
  83 void __init omap243x_map_io(void)
  84 {
  85         omap243x_map_common_io();
  86 }
  87 #endif
  88
  89 #if defined(CONFIG_ARCH_OMAP3)
  90
  91 static struct omap_globals omap3_globals = {
  92         .class  = OMAP343X_CLASS,
  93         .tap    = OMAP2_L4_IO_ADDRESS(0x4830A000),
  94         .sdrc   = OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE),
  95         .sms    = OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE),
  96         .ctrl   = OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE),
  97         .prm    = OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE),
  98         .cm     = OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE),
  99 };
 100
 101 void __init omap2_set_globals_3xxx(void)
 102 {
 103         __omap2_set_globals(&omap3_globals);
 104 }
 105
 106 void __init omap3_map_io(void)
 107 {
 108         omap34xx_map_common_io();
 109 }
 110
 111 /*
 112  * Adjust TAP register base such that omap3_check_revision accesses the correct
 113  * TI81XX register for checking device ID (it adds 0x204 to tap base while
 114  * TI81XX DEVICE ID register is at offset 0x600 from control base).
 115  */
 116 #define TI81XX_TAP_BASE         (TI81XX_CTRL_BASE + \
 117                                 TI81XX_CONTROL_DEVICE_ID - 0x204)
 118
 119 static struct omap_globals ti81xx_globals = {
 120         .class  = OMAP343X_CLASS,
 121         .tap    = OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE),
 122         .ctrl   = OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE),
 123         .prm    = OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE),
 124         .cm     = OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE),
 125 };
 126
 127 void __init omap2_set_globals_ti81xx(void)
 128 {
 129         __omap2_set_globals(&ti81xx_globals);
 130 }
 131
 132 void __init ti81xx_map_io(void)
 133 {
 134         omapti81xx_map_common_io();
 135 }
 136
 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 };
 169
 170 void __init omap2_set_globals_443x(void)
 171 {
 172         omap2_set_globals_tap(&omap4_globals);
 173         omap2_set_globals_control(&omap4_globals);
 174         omap2_set_globals_prcm(&omap4_globals);
 175 }
 176
 177 void __init omap4_map_io(void)
 178 {
 179         omap44xx_map_common_io();
 180 }
 181 #endif
 182