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/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   = OMAP2420_SDRC_BASE,
  49         .sms    = OMAP2420_SMS_BASE,
  50         .ctrl   = OMAP242X_CTRL_BASE,
  51         .prm    = OMAP2420_PRM_BASE,
  52         .cm     = OMAP2420_CM_BASE,
  53 };
  54
  55 void __init omap2_set_globals_242x(void)
  56 {
  57         __omap2_set_globals(&omap242x_globals);
  58 }
  59 #endif
  60
  61 #if defined(CONFIG_SOC_OMAP2430)
  62
  63 static struct omap_globals omap243x_globals = {
  64         .class  = OMAP243X_CLASS,
  65         .tap    = OMAP2_L4_IO_ADDRESS(0x4900a000),
  66         .sdrc   = OMAP243X_SDRC_BASE,
  67         .sms    = OMAP243X_SMS_BASE,
  68         .ctrl   = OMAP243X_CTRL_BASE,
  69         .prm    = OMAP2430_PRM_BASE,
  70         .cm     = OMAP2430_CM_BASE,
  71 };
  72
  73 void __init omap2_set_globals_243x(void)
  74 {
  75         __omap2_set_globals(&omap243x_globals);
  76 }
  77 #endif
  78
  79 #if defined(CONFIG_ARCH_OMAP3)
  80
  81 static struct omap_globals omap3_globals = {
  82         .class  = OMAP343X_CLASS,
  83         .tap    = OMAP2_L4_IO_ADDRESS(0x4830A000),
  84         .sdrc   = OMAP343X_SDRC_BASE,
  85         .sms    = OMAP343X_SMS_BASE,
  86         .ctrl   = OMAP343X_CTRL_BASE,
  87         .prm    = OMAP3430_PRM_BASE,
  88         .cm     = OMAP3430_CM_BASE,
  89 };
  90
  91 void __init omap2_set_globals_3xxx(void)
  92 {
  93         __omap2_set_globals(&omap3_globals);
  94 }
  95
  96 void __init omap3_map_io(void)
  97 {
  98         omap2_set_globals_3xxx();
  99         omap34xx_map_common_io();
 100 }
 101
 102 /*
 103  * Adjust TAP register base such that omap3_check_revision accesses the correct
 104  * TI816X register for checking device ID (it adds 0x204 to tap base while
 105  * TI816X DEVICE ID register is at offset 0x600 from control base).
 106  */
 107 #define TI816X_TAP_BASE         (TI816X_CTRL_BASE + \
 108                                 TI816X_CONTROL_DEVICE_ID - 0x204)
 109
 110 static struct omap_globals ti816x_globals = {
 111         .class  = OMAP343X_CLASS,
 112         .tap    = OMAP2_L4_IO_ADDRESS(TI816X_TAP_BASE),
 113         .ctrl   = TI816X_CTRL_BASE,
 114         .prm    = TI816X_PRCM_BASE,
 115         .cm     = TI816X_PRCM_BASE,
 116 };
 117
 118 void __init omap2_set_globals_ti816x(void)
 119 {
 120         __omap2_set_globals(&ti816x_globals);
 121 }
 122 #endif
 123
 124 #if defined(CONFIG_ARCH_OMAP4)
 125 static struct omap_globals omap4_globals = {
 126         .class  = OMAP443X_CLASS,
 127         .tap    = OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE),
 128         .ctrl   = OMAP443X_SCM_BASE,
 129         .ctrl_pad       = OMAP443X_CTRL_BASE,
 130         .ctrl_wk_pad    = OMAP443X_CTRL_WK_BASE,
 131         .prm    = OMAP4430_PRM_BASE,
 132         .cm     = OMAP4430_CM_BASE,
 133         .cm2    = OMAP4430_CM2_BASE,
 134 };
 135
 136 void __init omap2_set_globals_443x(void)
 137 {
 138         omap2_set_globals_tap(&omap4_globals);
 139         omap2_set_globals_control(&omap4_globals);
 140         omap2_set_globals_prcm(&omap4_globals);
 141 }
 142 #endif
 143