arch/arm/mach-omap2/voltagedomains3xxx_data.c

   1 /*
   2  * OMAP3 voltage domain data
   3  *
   4  * Copyright (C) 2007, 2010 Texas Instruments, Inc.
   5  * Rajendra Nayak <rnayak@ti.com>
   6  * Lesly A M <x0080970@ti.com>
   7  * Thara Gopinath <thara@ti.com>
   8  *
   9  * Copyright (C) 2008, 2011 Nokia Corporation
  10  * Kalle Jokiniemi
  11  * Paul Walmsley
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License version 2 as
  15  * published by the Free Software Foundation.
  16  */
  17 #include <linux/kernel.h>
  18 #include <linux/err.h>
  19 #include <linux/init.h>
  20
  21 #include <plat/common.h>
  22 #include <plat/cpu.h>
  23
  24 #include "prm-regbits-34xx.h"
  25 #include "omap_opp_data.h"
  26 #include "voltage.h"
  27 #include "vc.h"
  28 #include "vp.h"
  29 #include "ldo.h"
  30
  31 /*
  32  * VDD data
  33  */
  34
  35 static const struct omap_vfsm_instance omap3_vdd1_vfsm = {
  36         .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
  37         .voltsetup_shift = OMAP3430_SETUP_TIME1_SHIFT,
  38         .voltsetup_mask = OMAP3430_SETUP_TIME1_MASK,
  39 };
  40
  41 static struct omap_vdd_info omap3_vdd1_info;
  42
  43 static const struct omap_vfsm_instance omap3_vdd2_vfsm = {
  44         .voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
  45         .voltsetup_shift = OMAP3430_SETUP_TIME2_SHIFT,
  46         .voltsetup_mask = OMAP3430_SETUP_TIME2_MASK,
  47 };
  48
  49 static struct omap_vdd_info omap3_vdd2_info;
  50
  51 static struct voltagedomain omap3_voltdm_mpu = {
  52         .name = "mpu_iva",
  53         .scalable = true,
  54         .read = omap3_prm_vcvp_read,
  55         .write = omap3_prm_vcvp_write,
  56         .rmw = omap3_prm_vcvp_rmw,
  57         .vc = &omap3_vc_mpu,
  58         .vfsm = &omap3_vdd1_vfsm,
  59         .vp = &omap3_vp_mpu,
  60         .vdd = &omap3_vdd1_info,
  61 };
  62
  63 static struct voltagedomain omap3_voltdm_core = {
  64         .name = "core",
  65         .scalable = true,
  66         .read = omap3_prm_vcvp_read,
  67         .write = omap3_prm_vcvp_write,
  68         .rmw = omap3_prm_vcvp_rmw,
  69         .vc = &omap3_vc_core,
  70         .vfsm = &omap3_vdd2_vfsm,
  71         .vp = &omap3_vp_core,
  72         .vdd = &omap3_vdd2_info,
  73 };
  74
  75 static struct voltagedomain omap3_voltdm_wkup = {
  76         .name = "wakeup",
  77 };
  78
  79 static struct voltagedomain *voltagedomains_omap3[] __initdata = {
  80         &omap3_voltdm_mpu,
  81         &omap3_voltdm_core,
  82         &omap3_voltdm_wkup,
  83         NULL,
  84 };
  85
  86 static const char *sys_clk_name __initdata = "sys_ck";
  87
  88 void __init omap3xxx_voltagedomains_init(void)
  89 {
  90         struct voltagedomain *voltdm;
  91         int i;
  92
  93         /*
  94          * XXX Will depend on the process, validation, and binning
  95          * for the currently-running IC
  96          */
  97         if (cpu_is_omap3630()) {
  98                 omap3_vdd1_info.volt_data = omap36xx_vddmpu_volt_data;
  99                 omap3_vdd2_info.volt_data = omap36xx_vddcore_volt_data;
 100                 omap3_vdd1_info.dep_vdd_info = omap36xx_vddmpu_dep_info;
 101                 omap3_voltdm_mpu.abb = &omap3630_ldo_abb_mpu_instance;
 102
 103         } else {
 104                 omap3_vdd1_info.volt_data = omap34xx_vddmpu_volt_data;
 105                 omap3_vdd2_info.volt_data = omap34xx_vddcore_volt_data;
 106                 omap3_vdd1_info.dep_vdd_info = omap34xx_vddmpu_dep_info;
 107         }
 108
 109         for (i = 0; voltdm = voltagedomains_omap3[i], voltdm; i++)
 110                 voltdm->sys_clk.name = sys_clk_name;
 111
 112         voltdm_init(voltagedomains_omap3);
 113 };