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 <plat/hardware.h>
  21 #include <plat/board.h>
  22 #include <plat/mux.h>
  23 #include <plat/clock.h>
  24
  25 #include "iomap.h"
  26 #include "common.h"
  27 #include "sdrc.h"
  28 #include "control.h"
  29
  30 /* Global address base setup code */
  31
  32 #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
  33
  34 static void __init __omap2_set_globals(struct omap_globals *omap2_globals)
  35 {
  36         omap2_set_globals_tap(omap2_globals);
  37         omap2_set_globals_sdrc(omap2_globals);
  38         omap2_set_globals_control(omap2_globals);
  39         omap2_set_globals_prcm(omap2_globals);
  40 }
  41
  42 #endif
  43
  44 #if defined(CONFIG_SOC_OMAP2420)
  45
  46 static struct omap_globals omap242x_globals = {
  47         .class  = OMAP242X_CLASS,
  48         .tap    = OMAP2_L4_IO_ADDRESS(0x48014000),
  49         .sdrc   = OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE),
  50         .sms    = OMAP2_L3_IO_ADDRESS(OMAP2420_SMS_BASE),
  51         .ctrl   = OMAP2_L4_IO_ADDRESS(OMAP242X_CTRL_BASE),
  52         .prm    = OMAP2_L4_IO_ADDRESS(OMAP2420_PRM_BASE),
  53         .cm     = OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE),
  54 };
  55
  56 void __init omap2_set_globals_242x(void)
  57 {
  58         __omap2_set_globals(&omap242x_globals);
  59 }
  60
  61 void __init omap242x_map_io(void)
  62 {
  63         omap242x_map_common_io();
  64 }
  65 #endif
  66
  67 #if defined(CONFIG_SOC_OMAP2430)
  68
  69 static struct omap_globals omap243x_globals = {
  70         .class  = OMAP243X_CLASS,
  71         .tap    = OMAP2_L4_IO_ADDRESS(0x4900a000),
  72         .sdrc   = OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE),
  73         .sms    = OMAP2_L3_IO_ADDRESS(OMAP243X_SMS_BASE),
  74         .ctrl   = OMAP2_L4_IO_ADDRESS(OMAP243X_CTRL_BASE),
  75         .prm    = OMAP2_L4_IO_ADDRESS(OMAP2430_PRM_BASE),
  76         .cm     = OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE),
  77 };
  78
  79 void __init omap2_set_globals_243x(void)
  80 {
  81         __omap2_set_globals(&omap243x_globals);
  82 }
  83
  84 void __init omap243x_map_io(void)
  85 {
  86         omap243x_map_common_io();
  87 }
  88 #endif
  89
  90 #if defined(CONFIG_ARCH_OMAP3)
  91
  92 static struct omap_globals omap3_globals = {
  93         .class  = OMAP343X_CLASS,
  94         .tap    = OMAP2_L4_IO_ADDRESS(0x4830A000),
  95         .sdrc   = OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE),
  96         .sms    = OMAP2_L3_IO_ADDRESS(OMAP343X_SMS_BASE),
  97         .ctrl   = OMAP2_L4_IO_ADDRESS(OMAP343X_CTRL_BASE),
  98         .prm    = OMAP2_L4_IO_ADDRESS(OMAP3430_PRM_BASE),
  99         .cm     = OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE),
 100 };
 101
 102 void __init omap2_set_globals_3xxx(void)
 103 {
 104         __omap2_set_globals(&omap3_globals);
 105 }
 106
 107 void __init omap3_map_io(void)
 108 {
 109         omap34xx_map_common_io();
 110 }
 111
 112 /*
 113  * Adjust TAP register base such that omap3_check_revision accesses the correct
 114  * TI81XX register for checking device ID (it adds 0x204 to tap base while
 115  * TI81XX DEVICE ID register is at offset 0x600 from control base).
 116  */
 117 #define TI81XX_TAP_BASE         (TI81XX_CTRL_BASE + \
 118                                 TI81XX_CONTROL_DEVICE_ID - 0x204)
 119
 120 static struct omap_globals ti81xx_globals = {
 121         .class  = OMAP343X_CLASS,
 122         .tap    = OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE),
 123         .ctrl   = OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE),
 124         .prm    = OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE),
 125         .cm     = OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE),
 126 };
 127
 128 void __init omap2_set_globals_ti81xx(void)
 129 {
 130         __omap2_set_globals(&ti81xx_globals);
 131 }
 132
 133 void __init ti81xx_map_io(void)
 134 {
 135         omapti81xx_map_common_io();
 136 }
 137
 138 #define AM33XX_TAP_BASE         (AM33XX_CTRL_BASE + \
 139                                 TI81XX_CONTROL_DEVICE_ID - 0x204)
 140
 141 static struct omap_globals am33xx_globals = {
 142         .class  = AM335X_CLASS,
 143         .tap    = AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE),
 144         .ctrl   = AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
 145         .prm    = AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE),
 146         .cm     = AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE),
 147 };
 148
 149 void __init omap2_set_globals_am33xx(void)
 150 {
 151         __omap2_set_globals(&am33xx_globals);
 152 }
 153
 154 void __init am33xx_map_io(void)
 155 {
 156         omapam33xx_map_common_io();
 157 }
 158 #endif
 159
 160 #if defined(CONFIG_ARCH_OMAP4)
 161 static struct omap_globals omap4_globals = {
 162         .class  = OMAP443X_CLASS,
 163         .tap    = OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
 164         .ctrl   = OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
 165         .ctrl_pad       = OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE),
 166         .prm    = OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE),
 167         .cm     = OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE),
 168         .cm2    = OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE),
 169         .prcm_mpu       = OMAP2_L4_IO_ADDRESS(OMAP4430_PRCM_MPU_BASE),
 170 };
 171
 172 void __init omap2_set_globals_443x(void)
 173 {
 174         omap2_set_globals_tap(&omap4_globals);
 175         omap2_set_globals_control(&omap4_globals);
 176         omap2_set_globals_prcm(&omap4_globals);
 177 }
 178
 179 void __init omap4_map_io(void)
 180 {
 181         omap44xx_map_common_io();
 182 }
 183 #endif
 184